A press felt that includes a base fabric with a machine side and a paper support side, and at least one PS batt layer made of batt fibers. A non-woven fusible web formed with fusible fibers or strands made of a same material type as the at least one PS batt layer is applied at least one of between the base fabric and the PS batt layer or between the PS batt layers. The fusible fibers or strands of the non-woven fusible web are punched through the base fabric along with the batt fibers during needling of the press felt to provide a uniform distribution through the base fabric and with the batt. During subsequent heat-setting, the non-woven fusible fibers or strands are melted and the material of the fusible fibers or strands is uniformly distributed through the batt and the base fabric to enhance batt retention.
A woven fabric seam area is provided including a top surface and a bottom surface, with the woven fabric being formed of warp yarns interwoven with weft yarns in a repeating pattern, and either the warp yarns or the weft yarns are formed at least in part of a laser energy absorbent material. Within the fabric seam area yarns formed of laser energy transparent material can be bonded to yarns being formed at least in part of a laser energy absorbent material by laser welds in order to maintain or achieve a desired flexibility and/or shear resistance of the fabric. A method of forming such a fabric seam area is also provided.
A press felt is provided including a non-woven base fabric material formed of a first fabric structure, with the first fabric structure including an array of MD yarns connected with at least one layer of a hot melt adhesive web material and at least one layer of a non-woven backing. The non-woven backing includes a layer of a first yarn system and a layer of a second yarn system oriented transverse to the first yarn system. At least one of the first and second yarn systems includes a low melt temperature adhesive that is heat activated and binds the first and second yarn systems together. The nonwoven base fabric material has an MD length and CD width and is arranged in two superimposed layers joined by the MD oriented yarns at CD oriented fold regions at each of two opposing ends thereof.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
A leader wire for a textile assembly including a seam is disclosed. The leader wire includes a body defining a leading portion including a tip and a trailing portion adapted to attach to a filament. The tip has a rounded leading edge with a width (w). The leader wire interdigitates a first sheet end defining a first plurality of loops with a second sheet end defining a second plurality of loops. The first and second plurality of loops each have a material thickness (t) and define a loop opening including a length (L) and a height (h). In one embodiment, w ≤ 50%-90% (L-t). In one embodiment, when the leading portion is positioned within an engaged loop of each of the first and second plurality of loops, the leading portion urges adjacent opposing loops downstream from the engaged loops towards each other and towards a seam plane.
F16G 3/04 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge in which the ends of separate U-shaped or like eyes are attached to the belt by parts penetrating into it
In one embodiment, a pintle insertion tool is disclosed. The pintle insertion tool includes a housing, and a drive assembly supported by the housing. The drive assembly includes a controller connected to a power supply and configured to drive at least one motor. The drive assembly includes a first roller and a second roller defining at least a portion of a channel therebetween. The at least one motor is configured to rotate the first roller and the second roller in both a forward direction and a reverse direction. The channel is adapted to receive a pintle lead wire such that the pintle lead wire is driven by the first roller and the second roller through interdigitated seam loops on opposing ends of a textile sheet so that a pintle can be pushed into position to complete a seam.
Seams sold as an integral component of papermaking fabrics
for paper making machines (terms considered too vague by the
International Bureau - Rule 13(2)(b) of the Common
Regulations).
A composite forming fabric for a papermaking machine woven according to a repeating fabric weave pattern is provided. The fabric includes a paper side (PS) layer having a PS surface, with the PS layer including PS warps and PS wefts interwoven in a first repeating pattern, and a machine side (MS) layer having a MS surface, with the MS layer including interwoven MS warps and MS wefts. A plurality of pairs of binder weft yarns each including first and second binder weft yarns that are interwoven with the PS warps and the MS warps to bind the PS and MS layers together in the composite forming fabric. In each pattern repeat of the fabric weave pattern at least three of the MS warps pass under each MS weft, where said at least three of the MS warps are co-located adjacent to one another with a further one of the MS warps separating a first of the at least three warps from the others of said at least three warps, and each of the MS warps interlaces with at least two non-adjacent ones of the MS wefts.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
A reinforced element for use in the construction and assembly of an industrial textile, the element comprising a fibrous reinforcing material encapsulated by a thermoplastic polymer matrix, wherein: the thermoplastic polymer matrix comprises an amorphous polyester, a low-crystallinity polyester, polyphenylene sulphide (PPS), or a mixture thereof; the fibrous reinforcing material comprises continuous filaments selected from the group consisting of thermoplastic polymeric filaments, thermosetting polymeric filaments, glass fibers and a mixture thereof such that a majority of the continuous filaments are oriented in a first direction and the remainder of the continuous filaments are oriented in a second direction that is generally perpendicular to the first direction; a temperature at which the amorphous polymer substantially enters a liquid state, or the melting point of the low-crystallinity polyester, is at least 10° C. less than the melting point of the thermoplastic polymeric filaments; and the polymer matrix and the fibrous reinforcing material are both substantially transparent to radiant laser energy in a range of from about 800 nm to about 1200 run.
An industrial textile is provided, preferably suitable for use as a dryer fabric in a papermaking machine. The industrial textile has first and second surfaces and is defined by first and second systems of warp yarns interwoven with a system of weft yarns in a repeating pattern. In the repeating pattern, each of the warp yarns in the first system of warp yarns is interwoven with the system of weft yarns with a float on the first surface over at least 5 of the weft yarns, under 1 of the weft yarns, over 1 of the weft yarns, and under 1 of the weft yarns. Additionally, each of the warp yarns in the second system of warp yarns is interwoven with the system of weft yarns with a float on the second surface under at least 5 of the weft yarns, over 1 of the weft yarns, under 1 of the weft yarns, and over 1 of the weft yarns in the repeating pattern. Each of the warp yarns of the first system of warp yarns is stacked over a corresponding one of the warp yarns of the second system of warp yarns to form stacked pairs of the warp yarns.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
A seamless press felt is provided having inner and outer base fabric layers, which can be woven or non-woven, having an MD length and CD width, each including at least a first array of MD oriented yarns and being formed as a continuous unbroken tube structure. An elastic intermediate yarn assembly with parallel and regularly spaced CD yarns, each bonded to an elastic carrier material, is formed as a continuous unbroken tube structure, and is “socked” between the inner and outer base fabric layers. The elastic intermediate yarn assembly has an MD length that is from 1% to 10% less than the MD length of the press felt prior to assembly and is elastically stretched during assembly between the inner and outer base fabric layers. At least one batt layer needled through the inner and outer base fabric layers and the elastic intermediate yarn assembly to fornt he press felt.
A forming fabric for a papermaking machine woven according to a repeating fabric weave pattern is provided. The fabric includes a PS layer having a PS surface, with the PS layer including PS warps and PS wefts interwoven in a first repeating pattern, and a MS layer having a MS surface, with the MS layer including interwoven MS warps and MS wefts. A plurality of pairs of binder weft yarns is provided, with each of the pairs of binder weft yarns comprising first and second binder weft yarns that are interwoven according to a binder weft pattern with the PS warps and the MS warps to bind the PS and MS layers together in the composite forming fabric, and each interchanges between the layers at exchange points. In each pattern repeat of the fabric weave pattern, each of the MS warps forms one or more MS warp knuckles over single ones of the MS wefts, the MS warp knuckles of the MS warps are arranged in a broken twill having an offset mirror symmetric arrangement, and a direction of the broken twill reverses after an equal number of MS warp knuckles.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D21F 1/00 - Wet end of machines for making continuous webs of paper
14.
GUIDING RESISTANT FORMING FABRIC WITH BALANCED TWILL MACHINE SIDE LAYER
A forming fabric for a papermaking machine woven according to a repeating fabric weave pattern is provided. The fabric includes a PS layer having a PS surface, with the PS layer including PS warps and PS wefts interwoven in a first repeating pattern, and a MS layer having a MS surface, with the MS layer including interwoven MS warps and MS wefts. A plurality of pairs of binder weft yarns is provided, with each of the pairs of binder weft yarns comprising first and second binder weft yarns that are interwoven according to a binder weft pattern with the PS warps and the MS warps to bind the PS and MS layers together in the composite forming fabric, and each interchanges between the layers at exchange points. In each pattern repeat of the fabric weave pattern, each of the MS warps forms one or more MS warp knuckles over single ones of the MS wefts, the MS warp knuckles of the MS warps are arranged in a broken twill having an offset mirror symmetric arrangement, and a direction of the broken twill reverses after an equal number of MS warp knuckles.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
Industrial conveying fabrics for use with papermaking
machines and with papermaking filtration parts and
accessories therefor. Synthetic yarns comprised of polymeric materials for use in
making industrial conveying fabrics. Fabrics for papermaking.
An endless fabric belt having a seam region, the seam region comprising: a) machine direction (MD) threads; b) cross-direction (CD) threads interwoven with the MD threads; and c) termination zones distributed throughout the entire seam region, with each termination zone comprising two ends of an MD thread; wherein: a plurality of the CD threads are fusible, with the fusible (F) and non-fusible (N) CD threads distributed in a pattern throughout the seam region such that in a repeating unit of the pattern, the ratio of F threads to CD threads is at most 0.75; and a plurality of the termination zones further comprise at least one fusible CD thread attached to the MD thread in the termination zone.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
D21F 1/00 - Wet end of machines for making continuous webs of paper
A composite forming fabric for a papermaking machine woven according to a repeating fabric weave pattern is provided. The fabric includes a paper side (PS) layer having a PS surface, with the PS layer including PS warps and PS wefts interwoven in a first repeating pattern, and a machine side (MS) layer having a MS surface, with the MS layer including interwoven MS warps and MS wefts. A plurality of pairs of binder weft yarns each including first and second binder weft yarns that are interwoven with the PS warps and the MS warps to bind the PS and MS layers together in the composite forming fabric. In each pattern repeat of the fabric weave pattern at least three of the MS warps pass under each MS weft, where said at least three of the MS warps are co-located adjacent to one another with a further one of the MS warps separating a first of the at least three warps from the others of said at least three warps, and each of the MS warps interlaces with at least two non-adjacent ones of the MS wefts.
D21F 1/00 - Wet end of machines for making continuous webs of paper
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
A reinforced element for use in the construction and assembly of an industrial textile, the element comprising a fibrous reinforcing material encapsulated by a thermoplastic polymer matrix, wherein: the thermoplastic polymer matrix comprises an amorphous polyester, a low-crystallinity polyester, polyphenylene sulphide (PPS), or a mixture thereof; the fibrous reinforcing material comprises continuous filaments selected from the group consisting of thermoplastic polymeric filaments, thermosetting polymeric filaments, glass fibers and a mixture thereof, such that a majority of the continuous filaments are oriented in a first direction and the remainder of the continuous filaments are oriented in a second direction that is generally perpendicular to the first direction; a temperature at which the amorphous polymer substantially enters a liquid state, or the melting point of the low- crystallinity polyester, is at least lOoC less than the melting point of the thermoplastic polymeric filaments; and the polymer matrix and the fibrous reinforcing material are both substantially transparent to radiant laser energy in a range of from about 800 nm to about 1200 run.
(1) Industrial conveying fabrics for use with papermaking machines and with papermaking filtration parts and accessories therefor
(2) Synthetic yarns comprised of polymeric materials for use in making industrial conveying fabrics
(3) Fabrics for papermaking
An industrial textile formed from first and second systems of warp yarns interwoven with first, second, and third sets of weft yarns in a repeating pattern to provide a 2½ weft layer fabric construction is provided. One of each of the yarns of the first and second sets of weft yarns are arranged so as to form a vertically aligned pair with respect to one another, and the third set of weft yarns is located intermediate of the first and second sets of weft yarns between vertically aligned pairs from the first and second sets. Each of the warp yarns in the first system of warp yarns is interwoven only with the weft of the first and third sets, and each of the warp yarns of the second system of warp yarns is interwoven only with the weft yarns of the second and third sets. The warp yarns of the first and second systems of warp yarns are arranged as vertically stacked pairs.
D03D 11/00 - Double or multi-ply fabrics not otherwise provided for
D21F 1/00 - Wet end of machines for making continuous webs of paper
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
Synthetic yarns comprised of polymeric materials for use in making industrial conveying fabrics Industrial conveying fabrics for use with papermaking machines and with papermaking filtration parts and accessories therefor; dryer, press, and forming fabrics and felts for papermaking machines
A fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the equipment or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.
D06M 13/08 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment with halogenated hydrocarbons
D06M 13/53 - CoolingSteaming or heating, e.g. in fluidised bedsTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment combined with mechanical treatment with molten metals
D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
D06M 23/16 - Processes for the non-uniform application of treating agents, e.g. one-sided treatmentDifferential treatment
D21F 1/00 - Wet end of machines for making continuous webs of paper
D21F 1/30 - Protecting wire-cloths from mechanical damage
An industrial textile formed from first and second systems of warp yarns interwoven with first, second, and third sets of weft yarns in a repeating pattern to provide a 2 1/2 weft layer fabric construction is provided. One of each of the yarns of the first and second sets of weft yarns are arranged so as to form a vertically aligned pair with respect to one another, and the third set of weft yarns is located intermediate of the first and second sets of weft yarns between vertically aligned pairs from the first and second sets. Each of the warp yarns in the first system of warp yarns is interwoven only with the weft of the first and third sets, and each of the warp yarns of the second system of warp yarns is interwoven only with the weft yarns of the second and third sets.
D21F 1/00 - Wet end of machines for making continuous webs of paper
D03D 11/00 - Double or multi-ply fabrics not otherwise provided for
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
Papermaking machines and parts thereof, namely, foils,
blades, suction boxes, fabric cleaning showers, and
replacement parts and accessories for the foregoing,
included in this class; industrial conveying fabrics in the
nature of conveyor belts for use with papermaking machines
and with papermaking filtration parts and parts and fittings
therefor. Synthetic yarns comprised of polymeric materials for use in
making industrial conveying fabrics. Fabrics for papermaking.
Non-woven double layer industrial textiles comprising a plurality of interconnected selectively slit and profiled panels formed from suitable sheet or film materials. Each panel includes two fold regions at each end. Each fold region has an array of slots and strips which form hem loops and hem loop-receiving openings by folding each region beneath and toward the panel body. The panel further includes two seam regions at a central portion of the panel, which when folded, provide seam loops and seam loop receiving openings. Outside free edges of the end fold regions are returned and sealed interior to the double layer so as to avoid fraying of free ends. Each seam region of the folded panel is interconnectable with the corresponding seam region of adjacent similar folded panels by means of a seam connecting member. Additional panels composed of heat- or wear-resistant material can be connected to lateral outside edges of panels forming the textile.
D21F 1/00 - Wet end of machines for making continuous webs of paper
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
F16G 3/04 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge in which the ends of separate U-shaped or like eyes are attached to the belt by parts penetrating into it
Nonwoven double layer industrial textiles comprising a plurality of interconnected selectively slit and profiled folded panels formed from suitable sheet or film materials. Each panel includes two fold regions having an array of slots and seaming loops. The folded panel is formed by folding each fold region toward the panel body, thereby providing seam loops and seam loop receiving openings, which are used to connect adjacent folded panels in a given layer of the textile. Two such layers are bonded together in overlapping relation such that outside free edges of any of the fold regions are returned and sealed interior to the double layer. Further panels composed of heat or wear resistant material can be connected to lateral outside edges of panels forming the textile.
D21F 1/00 - Wet end of machines for making continuous webs of paper
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
F16G 3/04 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge in which the ends of separate U-shaped or like eyes are attached to the belt by parts penetrating into it
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
An apparatus for measuring electromagnetic radiation transmission through a medium having first and second surfaces, the apparatus comprising: a) an excitation spectrum having a minimum wavelength of 50 nm; b) a fluorescing material that fluoresces within the excitation spectrum and emits fluorescent radiation within an emission wavelength spectrum; and c) a sensor for measuring an intensity of the emission wavelength spectrum or a sub-range of the emission wavelength spectrum; wherein: the fluorescing material is placed adjacent the second surface; the excitation spectrum enters the medium through the first surface, exits through the second surface, and strikes the fluorescing material; a portion of the fluorescent radiation enters the medium through the second surface and exits the medium through the first surface; and the sensor measures the intensity of the emission wavelength spectrum or a sub-range of the emission wavelength spectrum after the portion of the fluorescent radiation exits the medium through the first surface.
(1) Papermaking machines and accessories and parts therefor, namely, foils, blades, suction boxes, fabric cleaning showers, and replacement parts for the foregoing; industrial conveying fabrics for use with papermaking machines and with papermaking filtration parts and related accessories
(2) Synthetic yarns comprised of polymeric materials for use in making industrial conveying fabrics
(3) Fabrics for papermaking
A seaming element for an industrial textile, and methods of manufacture. The seaming element body is constructed from a single layer of polymeric film that is folded to provide a fold region and arms that comprise a first region, and a further second region. The first region is bonded to surfaces of an edge region of the textile, while the second region comprises a plurality of spaced-apart aligned protrusions extending from the first region, each protrusion comprising an interior space defined by an upper layer; a lower layer; and a loop at the fold region that connects the upper and lower layers. The interior space is divided into an outer securing region and an inner securing region by either a rib member placed between and bonded to an inner surface of at least one of the upper and lower layer, or by bonding a portion of the upper layer with a portion of the lower layer at a constriction zone. The outer securing region is interdigitatable and alignable with the inner securing region of a corresponding second seaming element bonded to another region of the textile, to define a first channel; and the inner securing region is interdigitatable and alignable with the outer securing region of the corresponding second seaming element, to define a second channel. A securing element is placed in the two channels.
A seaming element for seaming industrial textiles for filtration or other uses, an industrial textile with seaming elements, and a method of seaming such textiles. The seaming element is secured to a first seamable end or edge of the fabric, and includes at least one extension member, which can be a channelled protrusion, and which is engageable with a corresponding at least one extension member of a corresponding seaming element secured to the second seamable end or edge. The seaming elements are configured and dimensioned so that when the extensions or protrusions of the two seaming elements are aligned together and engaged, in some embodiments being secured by a pintle, they have a thickness which is compatible with the caliper of the finished fabric, to form a secure seam while avoiding or minimizing any discontinuity or irregularity in the finished fabric.
Synthetic yarns comprised of polymeric materials for use in making industrial conveying fabrics Industrial conveying fabrics for use with papermaking machines and with papermaking filtration parts and accessories therefor Fabrics for papermaking
36.
Seamed press felt including an elastic carrier layer and method of making
A seamed press felt formed from a base fabric material including MD yarns arranged in two superimposed layers joined by the MD yarns at CD folds at opposing ends thereof to form a continuous unbroken tube-like structure. The MD yarns form loops at the folds to define a pintle channel. A generally planar yarn assembly including an array of polymeric yarns bonded to an elastic carrier material that is extensible by at least 1% is located inside the base fabric with the yarns of the array oriented in the CD. A high surface contact area material is bonded to the elastic carrier material at both exterior MD ends adjacent to the MD loops at the folds. Each of the MD ends is anchored in a fixed position adjacent to the loops at the folds. A pintle extends through the channel defined by intermeshing the loops from the opposing ends.
A process fluid including a desired coating component, such as fluid starch, a surface sizing agent, a wax, plastic, or the like is applied by a spray apparatus to the surface of at least one of a pair of nip-forming rotating rolls from which it is transferred by contact to a moving web. Where two rolls are used, each roll can be supplied with the same or a differing coating material. At least one direct spray apparatus is located upstream of the nip forming roll pair and delivers a second process fluid, which may be the same or different from the first, to at least one surface of the web. This combination of indirect application of web coating materials from spray to roll to web, in combination with a direct spray system, offers numerous advantages including the ability to apply higher amounts of coating component than previously possible, to selectively optimize properties of each web surface, and apply coatings which have differing temperature sensitivities, utilizing spray configurations which may enhance sheet stability and reduce web breaks.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
B05C 1/00 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
B05B 3/00 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
A nonwoven industrial fabric comprising a first layer secured to a second layer, with each layer comprising a plurality of flow-through apertures and profiling protrusions, wherein: a) at least a portion of the flow-through apertures of the first layer is aligned with at least a portion of the flow-through apertures of the second layer; b) the first layer comprises a plurality of securing protrusions integral to the first layer; c) the second layer comprises a plurality of detents integral to the second layer; and d) the first layer is secured to the second layer by a plurality of locking pairs, each locking pair comprising a securing protrusion lockably engaged with a detent. A method of making the nonwoven industrial fabric is also described.
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
D21F 1/00 - Wet end of machines for making continuous webs of paper
B29C 65/00 - Joining of preformed partsApparatus therefor
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 15/00 - Layered products essentially comprising metal
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
Disclosed herein is a seaming element for attachment to an industrial textile. The industrial textile has opposed first and second seamable edge regions, while the seaming element has: i) a first lateral edge; ii) a second lateral edge; iii) a trailing edge; iv) a forward portion comprising a plurality of protruding seaming with successive loops spaced apart by an aperture, and v) a rearward portion continuous with the forward portion, with the rearward portion comprising an upper member and a lower member. The upper and lower members are substantially planar and have mutually opposed inner surfaces, with a portion of each inner surface bonded to the industrial textile at a selected one of the first and second seamable edge regions. At least one of the upper and lower member comprises one or more slits between the first lateral edge and the second lateral edge, with the one or more slits extending from the respective trailing edge in a direction towards the forward portion of the seaming element.
F16G 3/02 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge
D21F 1/00 - Wet end of machines for making continuous webs of paper
F16G 3/10 - Joining belts by sewing, sticking, vulcanising, or the likeConstructional adaptations of the belt ends for this purpose
B32B 3/04 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by a layer folded at the edge, e.g. over another layer
B32B 3/08 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
A press felt formed of two stacked layers of woven single layer base fabric, each layer being formed by warp yarns interwoven with two systems of weft yarns according to a single layer weave pattern. The layers are needled with a batt layer. In the woven single layer base fabric: a) the warp yarns are polymeric monofilaments arranged as a single layer and there are two systems of weft yarns; b) the first system of weft yarns are formed by cabled polymeric monofilaments and the second system of well yarns are single polymeric monofilaments; c) the cabled polymeric monofilaments are 50% to 85% in one repeat; d) the cabled monofilaments are each formed of at least two monofilaments which are cabled together; and e) at least two of the cabled well yarns in each repeat are adjacent to each other.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
D21F 1/00 - Wet end of machines for making continuous webs of paper
41.
Film structures for self locking nonwoven industrial textile
A profiled film structure, textiles comprising at least two layers of the structure, and methods of making the structure and textiles. Each film layer is profiled with regularly arranged protrusions, separated by planar land areas. Portions of at least one side wall of the protrusions are slit to create apertures extending through the film and top members forming coplanar latching means extending over the apertures. When the upper surface of a first layer of the film is brought into contiguous relationship with the upper surface of a second layer of the film, and the protrusions of each of the respective layers are aligned between adjacent protrusions of the other layer, the latching means of each layer are received and retained within the apertures of the opposing layer, resulting in an efficiently assembled self-locking structure having selectable permeability for fluid flow through the structure.
B32B 3/06 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers togetherLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for attaching the product to another member, e.g. to a support
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
F16B 5/07 - Joining sheets or plates to one another or to strips or bars parallel to them by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils
B32B 38/00 - Ancillary operations in connection with laminating processes
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
A seaming element for an industrial textile and a method of manufacture. The seaming element comprises an elongate body folded along its length at a folded connection region comprising a plurality of channeled protrusions securable to corresponding channeled protrusions of a complementary seaming element affixed to an opposing seamable edge. First and second body members extend from respective edges of the folded connection region, each body member being directly securable to the first seamable edge. At least one of the body members comprises a longitudinal profiled region proximate and substantially parallel to a free edge of the respective member. The method includes providing an array of apertures to form the channeled protrusions, and the profiled region is formed in a progressive roll forming process. The seaming element enables improved consistency and reliability of bonding of the element to the textile by laser welding, adhesives or other methods.
A non-contacting air seal device is provided in order to reduce or minimize the ingress of external air into a fluid spray apparatus for applying a fluid coating to a moving web in a papermaking machine. The air seal device includes two air seal assemblies located in tandem with convexly curved web facing surfaces arranged offset in a direction of travel of the web and in opposing relation to one another to define an S-shaped sinusoidal path along which the web travels as it passes through the seal device and wraps a portion of each of the convexly curved web facing surface as it either enters into or exits from the fluid spray apparatus. Each air seal assembly includes a roll, a rod, or a shoe that forms the convexly curved surface over which the web passes in a non-contacting manner on an air cushion which also minimizes ingress of both ambient and boundary layer air external to the fluid spray apparatus.
A nozzle assembly with a self-cleaning face is provided, having a nozzle body with a liquid flow path defined therethrough with an inlet and a spray outlet. The nozzle body is mounted in a carrier body, and an annular gas flow channel is located about the nozzle body with a gas discharge outlet defined around the spray outlet. A porous surface is located about the annular gas flow channel at the gas discharge outlet. A radiused surface is formed in the carrier body at the air discharge outlet. A pathway is in communication with the porous surface and adapted to provide a low velocity fluid discharge from the porous surface. A spray device and method are also provided using the nozzle assembly with the self-cleaning face. An adaptor for retrofitting an existing nozzle is also provided.
A film for conveying in an industrial process, industrial fabrics made from the film, and methods of manufacture. The film has a plurality of protrusions separated by land areas. Each protrusion comprises a top member having opposing lateral edges and is supported by opposed compression resistant first and second end walls, which with at least one of the lateral edges define an aperture extending through the film to provide a flow path. The base edge of each end wall has a configuration selected from at least one of the base edge being convexly curved away from the protrusion body; and each end wall extending below at least a part of each of the first and second lateral edges and being connected to each of the first and second lateral edges. The film structure provides physical properties equivalent to a woven fabric, with improved strength, stability and compression resistance.
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
Non-woven double layer industrial textiles comprising a plurality of interconnected selectively slit and profiled panels formed from suitable sheet or film materials. Each panel includes two fold regions at each end. Each fold region has an array of slots and strips which form hem loops and hem loop-receiving openings by folding each region beneath and toward the panel body. The panel further includes two seam regions at a central portion of the panel, which when folded, provide seam loops and seam loop receiving openings. Outside free edges of the end fold regions are returned and sealed interior to the double layer so as to avoid fraying of free ends. Each seam region of the folded panel is interconnectable with the corresponding seam region of adjacent similar folded panels by means of a seam connecting member. Additional panels composed of heat- or wear-resistant material can be connected to lateral outside edges of panels forming the textile.
Nonwoven double layer industrial textiles comprising a plurality of interconnected selectively slit and profiled folded panels formed from suitable sheet or film materials. Each panel includes two fold regions having an array of slots and seaming loops. The folded panel is formed by folding each fold region toward the panel body, thereby providing seam loops and seam loop receiving openings, which are used to connect adjacent folded panels in a given layer of the textile. Two such layers are bonded together in overlapping relation such that outside free edges of any of the fold regions are returned and sealed interior to the double layer. Further panels composed of heat or wear resistant material can be connected to lateral outside edges of panels forming the textile.
A nonwoven industrial textile for conveying in an industrial process, seaming elements and methods of manufacture. The textile comprises at least first and second layers of film. Each layer comprises protrusions separated by land areas and each defining an aperture for a flow path through the layer. For at least one of the layers, the protrusions comprise a first set having first and second ends integral with contiguous land areas, and at least a second set of protrusions each comprising a first end integral with a contiguous land area and an opposing second end having a configuration selected from a detached free end; and a weakened end portion integral with but detachable from a contiguous land area in response to strain. The construction allows for relative movement of the layers during travel over machine components such as rolls, reducing internal strain and risk of delamination.
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 7/08 - Interconnection of layers by mechanical means
D06C 23/04 - Making patterns or design on fabrics by shrinking, embossing, moireing, or crêping
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B32B 7/06 - Interconnection of layers permitting easy separation
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
49.
Single layer papermaking fabrics for manufacture of tissue and similar products
A woven single layer papermakers' fabric, having a sheet support surface and a machine side surface, comprises a set of monofilament machine direction (MD) oriented warp yarns interwoven with a set of monofilament weft yarns in a ten shed repeating weave pattern, wherein in each repeat of the repeating weave pattern, at least 50% of the warp yarns each forms in the sheet support surface at least one long float over nine consecutive weft yarns. Adjacent long floats define elongated MD oriented pockets in the sheet support surface. The fabrics provide improved properties for forming and conveying topographically patterned products such as tissue.
A seaming element for an industrial textile, and methods of manufacture. The seaming element body is constructed from a single layer of polymeric film that is folded to provide a fold region and arms that comprise a first region, and a further second region. The first region is bonded to surfaces of an edge region of the textile, while the second region comprises a plurality of spaced-apart aligned protrusions extending from the first region, each protrusion comprising an interior space defined by an upper layer; a lower layer; and a loop at the fold region that connects the upper and lower layers. The interior space is divided into an outer securing region and an inner securing region by either a rib member placed between and bonded to an inner surface of at least one of the upper and lower layer, or by bonding a portion of the upper layer with a portion of the lower layer at a constriction zone. The outer securing region is interdigitatable and alignable with the inner securing region of a corresponding second seaming element bonded to another region of the textile, to define a first channel; and the inner securing region is interdigitatable and alignable with the outer securing region of the corresponding second seaming element, to define a second channel. A securing element is placed in the two channels.
A seamed press felt formed from a base fabric material including MD yarns arranged in two superimposed layers joined by the MD yarns at CD folds at opposing ends thereof to form a continuous unbroken tube-like structure. The MD yarns form loops at the folds to define a pintle channel. A generally planar yarn assembly including an array of polymeric yarns bonded to an elastic carrier material that is extensible by at least 1% is located inside the base fabric with the yarns of the array oriented in the CD. A high surface contact area material is bonded to the elastic carrier material at both exterior MD ends adjacent to the MD loops at the folds. Each of the MD ends is anchored in a fixed position adjacent to the loops at the folds. A pintle extends through the channel defined by intermeshing the loops from the opposing ends.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
A nonwoven industrial fabric comprising a first layer secured to a second layer, with each layer comprising a plurality of flow-through apertures and profiling protrusions, wherein: a) at least a portion of the flow-through apertures of the first layer is aligned with at least a portion of the flow-through apertures of the second layer; b) the first layer comprises a plurality of securing protrusions integral to the first layer; c) the second layer comprises a plurality of detents integral to the second layer; and d) the first layer is secured to the second layer by a plurality of locking pairs, each locking pair comprising a securing protrusion lockably engaged with a detent. A method of making the nonwoven industrial fabric is also described.
A papermaker's through-air dryer (TAD) fabric for use in the production of tissue and towel products. The fabric is woven according to a 10-shed, semi-duplex weave design in which the warp and weft yarns are arranged so as to form pockets of at least two differing sizes in a first planar fabric surface. The pockets are designed and arranged to impart a measure of bulk and absorbency to the paper products conveyed thereon by providing MD oriented recesses in the PS fabric surface into which a portion of the component fibers of the paper products formed on the fabric are deflected during manufacture.
A press felt formed of two stacked layers of woven single layer base fabric, each layer being formed by warp yarns interwoven with two systems of weft yarns according to a single layer weave pattern. The layers are needled with a batt layer. In the woven single layer base fabric: a) the warp yarns are polymeric monofilaments arranged as a single layer and there are two systems of weft yarns; b) the first system of weft yarns are formed by cabled polymeric monofilaments and the second system of weft yarns are single polymeric monofilaments; c) the cabled polymeric monofilaments are 50% to 85% in one repeat; d) the cabled monofilaments are each formed of at least two monofilaments which are cabled together; and e) at least two of the cabled weft yarns in each repeat are adjacent to each other.
Disclosed herein is a seaming element for attachment to an industrial textile. The industrial textile has opposed first and second seamable edge regions, while the seaming element has: i) a first lateral edge; ii) a second lateral edge; iii) a trailing edge; iv) a forward portion comprising a plurality of protruding seaming with successive loops spaced apart by an aperture, and v) a rearward portion continuous with the forward portion, with the rearward portion comprising an upper member and a lower member. The upper and lower members are substantially planar and have mutually opposed inner surfaces, with a portion of each inner surface bonded to the industrial textile at a selected one of the first and second seamable edge regions. At least one of the upper and lower member comprises one or more slits between the first lateral edge and the second lateral edge, with the one or more slits extending from the respective trailing edge in a direction towards the forward portion of the seaming element.
A seaming element for an industrial textile, a textile with seaming elements, and a method. The seaming element has first and second end regions, a fold line in an intermediate fold region, and outer and inner surfaces. Each end region comprises slits extending from the outer surface through to the inner surface, defining protrusions which provide a profile to at least one of the surfaces. Apertures aligned along the fold line define a plurality of land areas. When the seaming element is folded along the fold line, the land areas form a plurality of loops defining a channel. When the seaming element is secured at each end region to a first end of the industrial textile, the loops are interdigitatable with corresponding loops on a compatible seaming element at a second end of the industrial textile, to define a single aligned channel to receive a securing means.
B32B 3/04 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by a layer folded at the edge, e.g. over another layer
B32B 3/08 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
D21F 1/00 - Wet end of machines for making continuous webs of paper
F16G 3/02 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
F16G 3/04 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge in which the ends of separate U-shaped or like eyes are attached to the belt by parts penetrating into it
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
A seaming element for an industrial textile and a method of manufacture. The seaming element comprises an elongate body folded along its length at a folded connection region comprising a plurality of channelled protrusions securable to corresponding channelled protrusions of a complementary seaming element affixed to an opposing seamable edge. First and second body members extend from respective edges of the folded connection region, each body member being directly securable to the first seamable edge. At least one of the body members comprises a longitudinal profiled region proximate and substantially parallel to a free edge of the respective member. The method includes providing an array of apertures to form the channelled protrusions, and the profiled region is formed in a progressive roll forming process. The seaming element enables improved consistency and reliability of bonding of the element to the textile by laser welding, adhesives or other methods.
A profiled film structure, textiles comprising at least two layers of the structure, and methods of making the structure and textiles. Each film layer is profiled with regularly arranged protrusions, separated by planar land areas. Portions of at least one side wall of the protrusions are slit to create apertures extending through the film and top members forming coplanar latching means extending over the apertures. When the upper surface of a first layer of the film is brought into contiguous relationship with the upper surface of a second layer of the film, and the protrusions of each of the respective layers are aligned between adjacent protrusions of the other layer, the latching means of each layer are received and retained within the apertures of the opposing layer, resulting in an efficiently assembled self-locking structure having selectable permeability for fluid flow through the structure.
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 3/06 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers togetherLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for attaching the product to another member, e.g. to a support
F16B 5/07 - Joining sheets or plates to one another or to strips or bars parallel to them by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils
A seaming element for seaming an industrial textile, an industrial textile, and a method of seaming. A first region of the seaming element comprises at least one securing member, and a second region is securable to the textile. Spaced-apart protrusions in the securing members are interdigitatable with corresponding protrusions in an opposing element, or the other seamable edge of the textile. Opposing protrusions are interdigitated to define first and second channels for securing means. Where the seaming element has two or more securing members, the protrusions of the outer securing member are aligned with those of an inner securing member of the opposing element, and the protrusions of an inner securing member are aligned with those of the outer securing member of the opposing element. Where the securing means is a pintle, the free ends can be inserted back into the channel to secure the seam.
F16G 3/02 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge
F16G 3/04 - Belt fastenings, e.g. for conveyor belts with series of eyes or the like, interposed and linked by a pin to form a hinge in which the ends of separate U-shaped or like eyes are attached to the belt by parts penetrating into it
A nonwoven industrial textile for conveying in an industrial process, seaming elements and methods of manufacture. The textile comprises at least first and second layers of film. Each layer comprises protrusions separated by land areas and each defining an aperture for a flow path through the layer. For at least one of the layers, the protrusions comprise a first set having first and second ends integral with contiguous land areas, and at least a second set of protrusions each comprising a first end integral with a contiguous land area and an opposing second end having a configuration selected from a detached free end; and a weakened end portion integral with but detachable from a contiguous land area in response to strain. The construction allows for relative movement of the layers during travel over machine components such as rolls, reducing internal strain and risk of delamination.
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
A film for conveying in an industrial process, industrial fabrics made from the film, and methods of manufacture. The film has a plurality of protrusions separated by land areas. Each protrusion comprises a top member having opposing lateral edges and is supported by opposed compression resistant first and second end walls, which with at least one of the lateral edges define an aperture extending through the film to provide a flow path. The base edge of each end wall has a configuration selected from at least one of the base edge being convexly curved away from the protrusion body; and each end wall extending below at least a part of each of the first and second lateral edges and being connected to each of the first and second lateral edges. The film structure provides physical properties equivalent to a woven fabric, with improved strength, stability and compression resistance.
A biaxially oriented multilayer thermoplastic film, and industrial textiles and textile components comprised of the film. Each layer comprises a polyester having an intrinsic viscosity (IV) of at least 0.5; and a hydrolytic stabilizer comprising a carbodiimide, and the film has a thickness of at least 100µm. The carbodiimide provides resistance to depolymerization resulting from prolonged exposure to heat and humidity. The film is preferably produced as a multilayer co-extrusion which is subsequently oriented in each of the machine and transverse directions to maximize its mechanical properties. The final film is processed to render it suitable for use as in nonwoven industrial textiles and textile components with improved durability and longevity.
A woven single layer papermakers' fabric, having a sheet support surface and a machine side surface, comprises a set of monofilament machine direction (MD) oriented warp yarns interwoven with a set of monofilament weft yarns in a ten shed repeating weave pattern, wherein in each repeat of the repeating weave pattern, at least 50% of the warp yarns each forms in the sheet support surface at least one long float over nine consecutive weft yarns. Adjacent long floats define elongated MD oriented pockets in the sheet support surface. The fabrics provide improved properties for forming and conveying topographically patterned products such as tissue.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
A seaming element for seaming an industrial textile, an industrial textile, and a method of seaming. A first region of the seaming element comprises at least one securing member, and a second region is securable to the textile. Spaced-apart protrusions in the securing members are interdigitatable with corresponding protrusions in an opposing element, or the other seamable edge of the textile. Opposing protrusions are interdigitated to define first and second channels for securing means. Where the seaming element has two or more securing members, the protrusions of the outer securing member are aligned with those of an inner securing member of the opposing element, and the protrusions of an inner securing member are aligned with those of the outer securing member of the opposing element. Where the securing means is a pintle, the free ends can be inserted back into the channel to secure the seam.
An oriented multi-layer polymer material, an industrial textile and seaming elements therefor, and methods of manufacture. The polymer material comprises at least two thermoplastic polymeric layers, wherein at least one of the layers includes a radiation absorbent material to provide a weldable outer surface of the polymer material and at least one of the layers permits through transmission of laser energy. The polymer material can be provided as a bi-axially oriented film or as a filament; and allows for accuracy and reliability of welding, while avoiding the disadvantages associated with accurate placement and alignment of separate welding strips.
B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
A papermaker's through-air dryer (TAD) fabric for use in the production of tissue and towel products. The fabric is woven according to a 10-shed, semi-duplex weave design in which the warp and weft yarns are arranged so as to form pockets of at least two differing sizes in a first planar fabric surface. The pockets are designed and arranged to impart a measure of bulk and absorbency to the paper products conveyed thereon by providing MD oriented recesses in the PS fabric surface into which a portion of the component fibers of the paper products formed on the fabric are deflected during manufacture.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
A woven industrial fabric for filtration and conveyance comprises at least one set of weft yarns, and one set of warp yarns, comprising a plurality of groups of warp yarns. Each group comprises an identical number of at least two warp yarns. For each group the warp yarns together follow an identical coplanar path; are retained in lateral adjacency to provide a profile comprising a profile height above exposed adjacent portions of the weft yarns in the product conveying surface, the profile height being between 50% and 100% of a height of each warp yarn in the group; and are dimensioned such that a ratio of a width of the group in the product conveying surface to a height of the group is at least 2:1. The profile provides improved embossing properties to impart topography to sheets carried by the fabric in formation or through air drying.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
A seaming element for an industrial textile, a textile with seaming elements, and a method. The seaming element has first and second end regions, a fold line in an intermediate fold region, and outer and inner surfaces. Each end region comprises slits extending from the outer surface through to the inner surface, defining protrusions which provide a profile to at least one of the surfaces. Apertures aligned along the fold line define a plurality of land areas. When the seaming element is folded along the fold line, the land areas form a plurality of loops defining a channel. When the seaming element is secured at each end region to a first end of the industrial textile, the loops are interdigitatable with corresponding loops on a compatible seaming element at a second end of the industrial textile, to define a single aligned channel to receive a securing means.
(1) Papermaking machines and accessories and parts therefor, namely, foils, blades, suction boxes, fabric cleaning showers, and replacement parts for the foregoing; industrial conveying fabrics for use with papermaking machines and with papermaking filtration parts and accessories therefor; fabrics for papermaking.
70.
Multiaxial press felt base fabric including cabled monofilaments
A multiaxial press felt base fabric construction is provided in which the base fabric is formed from a spirally wound precursor textile strip having a width that is less than an overall width of the assembled papermaking fabric and which is joined together along neighboring adjacent edges to form a fabric tube. At least one of: 100% of the MD yarns located on one surface of the precursor textile strip are comprised of cabled yarns or from 50% to 100% of the CD yarns are a cabled yarn. The MD yarns are arranged as vertically stacked pairs for compression resistance to provide void volume, and the vertically stacked arrangement is maintained by interweaving with one system of CD weft yarns.
Papermaking machines and accessories and parts therefor,
namely, foils, blades, suction boxes, fabric cleaning
showers, and replacement parts for the foregoing; industrial
conveying fabrics for use with papermaking machines and with
papermaking filtration parts and accessories therefor. Fabrics for papermaking.
72.
Industrial fabric comprised of selectively slit and embossed film
A nonwoven industrial fabric, and a method of constructing the fabric. The fabric comprises at least one layer of a polymeric film having a plurality of apertures extending from an upper surface through to a lower surface. Adjacent pairs of the apertures define land areas therebetween, and selected land areas comprise protrusions extending from at least one of the upper surface and the lower surface of the layer to form a profile to the respective surface. The method comprises optionally pre-embossing the film, cutting the film to provide the plurality of apertures, applying pressure to selected land areas to form the protrusions to create a contoured profile, and treating the film to set the contoured profile. Additional surface treatment can be provided, and two or more layers can be secured over each other for multilayer fabrics. The invention provides a simplified and economical construction, while maintaining stability and strength.
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
D21G 9/00 - Other accessories for paper-making machines
(1) Industrial conveying and filtration fabrics that are specifically designed and engineered for wet or dry process forming, namely industrial conveying fabrics for use on paper making and filter straining machinery or equipment
74.
Seam for an industrial fabric and seaming element therefor
A seaming element for seaming industrial textiles for filtration or other uses, an industrial textile with seaming elements, and a method of seaming such textiles. The seaming element is secured to a first seamable end or edge of the fabric, and includes at least one extension member, which can be a channelled protrusion, and which is engageable with a corresponding at least one extension member of a corresponding seaming element secured to the second seamable end or edge. The seaming elements are configured and dimensioned so that when the extensions or protrusions of the two seaming elements are aligned together and engaged, in some embodiments being secured by a pintle, they have a thickness which is compatible with the caliper of the finished fabric, to form a secure seam while avoiding or minimizing any discontinuity or irregularity in the finished fabric.
An oriented, thermoplastic monofilament and industrial textiles made therefrom, wherein the monofilaments are comprised of a polymer blend including 50 - 70% pbw (parts by weight) of a thermoplastic polyester, preferably medium to high intrinsic viscosity polyethylene terephthalate polyester, 25 - 35% pbw of a thermoplastic polyurethane, and 5% pbw to about 15% pbw of a polycarbodiimide masterbatch composition sufficient to provide at least 0.75% pbw of an active polycarbodiimide in the extruded monofilament. The polymer blend optionally includes an effective amount of an organosilicon compound that is polymerized into either the polyester or polyurethane components either prior to or during their blending and extrusion. Industrial fabrics, in particular woven papermakers forming fabrics including monofilaments comprising this blend as at least a portion of their components, exhibit improved physical properties in comparison with similar fabrics not including the polymer blend.
A forming section for a twin fabric papermaking machine, wherein after stock impingement, the two fabrics carry and sandwich the stock. A plurality of spaced apart drainage shoes, selectively provided to either or both of the fabrics, provides continuous support in the machine direction for the respective fabric in sliding contact, and each drainage shoe deflects the fabrics by a selected angle of wrap comprising an angular displacement between the leading edge and the trailing edge of the drainage shoe. At least one of the drainage shoes is secured to a drainage box and is provided with a plurality of drainage openings extending from the fabric contacting surface through to the machine side surface of the shoe. The arrangements of the invention provide improved drainage and formation of the paper web.
A valve ( 100 ) for a vacuum drainage system includes a valve body ( 112 ) having an interior chamber operatively connectable to a suction device and through an outlet ( 110 ) to a vacuum source. A movable member ( 105 ) having an aperture ( 107 ) is secured within the chamber and movable through points between closed and open positions to adjust the open area of the aperture and the fluid flow through the outlet. The aperture is configured such that during adjustment to increase the effective operational area of the aperture, a rate of change of th effective operational area increases non- linearly in relation to a linear increase in the distance of travel, while providing advantageous and more controllable linear adjustment of the applied vacuum. The aperture can have a trilateral shape including at least one curved side, or comprise a plurality of sub - apertures, and the movable member can comprise a rotary sleeve.
A seaming element for joining opposed ends of woven or nonwoven industrial textiles, textiles including seaming elements, and methods of making a seam area for textiles. The seaming element comprises a continuous filamentary structure, configured as first and second layers of aligned looped segments, each segment of one layer being connected to adjacent segments of the other layer by a connecting portion. The seaming elements can be bonded directly to the fabric edges, or inserted into the fabric so that free ends of the looped segments engage and are secured by selected MD yarns or components. Connecting portions of complementary elements when interdigitated together define a continuous channel to receive a pintle. The seaming element is readily and securely installed in the textiles, and overcomes problems of alignment of fabric ends for securing a seam, while minimizing any disruption in fabric properties adjacent the seam area.
An extruded oriented thermoplastic polymeric element for industrial textiles, and textiles comprising polymeric elements. The polymeric elements are constructed of a material selected from yarn material, fiber material and film, and comprise a thermoplastic polymer, and at least one dry lubricant, selected from molybdenum disulphide, tungsten disulphide, boron nitride, and a soft metal, the dry lubricant comprising particulate matter having an average particle size between about 0.05μ and about 100μ, and present in the polymeric element in an amount from between about 0.1% and about 10% parts by weight, based on a total weight of the polymeric element. The polymeric elements can be used as yarns in woven and non woven textiles, and as seaming elements. The polymeric elements provide increased abrasion resistance in industrial textiles, and reduced coefficient of friction.
D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
D03D 15/10 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using threads having high or low coefficients of friction
A seaming element and a method of seaming an industrial textile. The seaming element comprises first and second components, each constructed of a substantially planar polymeric film, comprising a textile body contacting portion and a free edge, and at least one row of pairs of substantially parallel slits spaced across the component, the slits having first ends substantially equidistant from the free edge of the component, and the pairs of slits defining strips which are deformable out of a plane of the film. When the two components are attached respectively to textile edges to be seamed, and the components are brought together, deformed strips of the first component are alignable with deformed strips of the second component to interengage the two components and to define a channel for a seam securing means, thus providing a simple and secure seam which is compatible with the properties of the textile body.
A nonwoven industrial fabric, and a method of constructing the fabric. The fabric comprises at least one layer of a polymeric film having a plurality of apertures extending from an upper surface through to a lower surface. Adjacent pairs of the apertures define land areas therebetween, and selected land areas comprise protrusions extending from at least one of the upper surface and the lower surface of the layer to form a profile to the respective surface. The method comprises optionally pre-embossing the film, cutting the film to provide the plurality of apertures, applying pressure to selected land areas to form the protrusions to create a contoured profile, and treating the film to set the contoured profile. Additional surface treatment can be provided, and two or more layers can be secured over each other for multilayer fabrics. The invention provides a simplified and economical construction, while maintaining stability and strength.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A multilayer woven industrial fabric comprises at least two layers of weft yarns interwoven with at least one system of warp yarns. At least some of the machine side (MS) weft yarns are arranged as complementary pairs, such that for each pair, the members follow mutually complementary paths, and exchange positions with each other so that, in the MS surface, the path of a pair of weft yarns appears to be that of a single yarn. The complementary weft yarns interweave only with the MS warp yarns and do not appear in the paper side. The unique MS weft yarn arrangement allows for the use of smaller yarns, while increasing fabric stiffness and dimensional stability, and is applicable to any multi-layer fabric design which includes at least two layers of weft yarns and one system of warp yarns.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
A seaming area for a woven industrial fabric, a fabric, and a method of providing a seaming area and seam. The fabric comprises at least a first set of warp yarns interwoven with weft yarns, either in a single layer, or multiple layers in which the warp yarns can optionally be stacked. At each seaming area, yarns of a first group pass around and in contact with the fabric edge, and yarns of a second group pass around the fabric edge to form protruding loops. Free ends of the warp yarns are bonded to the fabric body, over warp yarns or weft yarns, or combinations thereof. Opposing fabric ends are brought together, and the loops interdigitated to be joined by a pintle or coil to render the fabric endless. The seaming area and the method provide increased seam strength and reliability, with significant reduction of time and costs of manufacture.
A flat woven industrial filtration fabric comprises three layers of weft yarns. A first set of warp yarns interweaves only with paper side layer weft yarns and intermediate weft yarns, and a second set of warp yarns interweaves only with machine side layer weft yarns and the intermediate yarns, the first warp yarns and the second warp yarns interweaving with the same intermediate weft yarns at common turning points. The first warp yarns comprise groups of intrinsic binder yarns forming a single combined path on the paper side surface, and the second warp yarns are woven as individual yarns or in groups, such as pairs or triplets. The distinct nature of the paper side and machine side layers increases the available combinations of weave patterns to optimize the characteristics for each layer, and the distinct centre planes between the three layers provide improved drainage control.
A method of weaving industrial textiles to a single warp platform, and textiles made thereby. The method comprises identifying optimal fabric characteristics for selected uses to determine groups of suitable fabrics; selecting a first group, identifying fabric properties for optimal characteristics, and identifying optimal properties for warp yarns to be used for all fabrics in the group; selecting a structure type and weave design for each fabric of the group; providing a loom with selected shedding options and installing warp yarns having the identified optimal properties. Thereafter, each fabric in the group can be woven without changing the warp yarns, simply by identifying properties for weft yarns to correspond with the weave design of the respective fabric, setting the loom accordingly and weaving the fabrics as required, adjusting only the weft parameters between successive fabrics, resulting in increased efficiency of manufacturing and avoiding time consuming warp changes between fabrics.
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
86.
Papermaking fabrics with contaminant resistant nanoparticle coating and method of in situ application
A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.
A seaming element for seaming industrial textiles for filtration or other uses, an industrial textile with seaming elements, and a method of seaming such textiles. The seaming element is secured to a first seamable end or edge of the fabric, and includes at least one extension member, which can be a channelled protrusion, and which is engageable with a corresponding at least one extension member of a corresponding seaming element secured to the second seamable end or edge. The seaming elements are configured and dimensioned so that when the extensions or protrusions of the two seaming elements are aligned together and engaged, in some embodiments being secured by a pintle, they have a thickness which is compatible with the caliper of the finished fabric, to form a secure seam while avoiding or minimizing any discontinuity or irregularity in the finished fabric.
Segments, typically ceramic, for use in dewatering blades for papermaking and similar machines comprise lower surfaces to each of which at least one interlock member is bonded. The segments are installed by inserting the interlock members into a channel in an intermediate sub-assembly or base member. The members are securely attached within the channel by a suitable adhesive, or clip means to engage the interlock members, with the optional addition of an adhesive. The segments and dewatering blades, and a method of manufacture, allows for the segments to be made as flat units, without unnecessary angular surfaces, simplifies their attachment to the base, and reduces the occurrence of stress cracking or other damage to the segments. A single segment can be used in various dewatering blade types and in more than one orientation in dewatering blades, reducing manufacturing costs by unitizing construction.
A forming section for a twin fabric papermaking machine, wherein after stock impingement, the two fabrics carry and sandwich the stock. A plurality of spaced apart drainage shoes, selectively provided to either or both of the fabrics, provides continuous support in the machine direction for the respective fabric in sliding contact, and each drainage shoe deflects the fabrics by a selected angle of wrap comprising an angular displacement between the leading edge and the trailing edge of the drainage shoe. At least one of the drainage shoes is secured to a drainage box and is provided with a plurality of drainage openings extending from the fabric contacting surface through to the machine side surface of the shoe. The arrangements of the invention provide improved drainage and formation of the paper web.
A woven filtration fabric for cellulosic sheet formation. The warp yarns comprise intrinsic binder yarn pairs, and a set of dedicated machine side layer warp yarns. The members of each intrinsic binder yarn pair alternate with each other to define a single combined path in each layer. Whenever a member interweaves with a machine side layer weft yarn, at least one machine side layer warp yarn interweaves with the same weft yarn in the same knuckle. In some embodiments, the members form double knuckles in the machine side layer, firstly together with a first machine side layer warp yarn and then together with a second machine side layer warp yarn. The warp yarn path ratio of machine side layer warp yarns to single combined paths of the intrinsic binder yarn pairs is at least 1.5:1. The fabrics provide increased center plane resistance, resulting in improved drainage and sheet uniformity.
Papermaker's forming fabrics including extruded thermoplastic monofilaments formed from a polymer blend consisting of from about 51% - 90% pbw (parts by weight) of a poly(ethylene naphthalate) (PEN) polymer having a melt point of from 249°C to about 278°C, most preferably between about 262°C and 273°C, and an intrinsic viscosity of from 0.45 to about 0.95, preferably from about 0.65 to about 0.85, along with from about 49% - 10% pbw of a poly(ethylene terephthalate) (PET) polymer having an intrinsic viscosity of between about 0.55 to about 1.05, preferably from about 0.85 to 1.0. Monofilaments formed from the novel polymer blend exhibit physical properties differing from those obtained from monofilaments formed of 100% PEN polymer, making them particularly suitable for use in weaving and processing the forming fabrics of the present invention.
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
92.
INDUSTRIAL FILTRATION FABRIC WITH HIGH CENTRE PLANE RESISTANCE
A flat woven industrial filtration fabric comprises three layers of weft yarns. A first set of warp yarns interweaves only with paper side layer weft yarns and intermediate weft yarns, and a second set of warp yarns interweaves only with machine side layer weft yarns and the intermediate yarns, the first warp yarns and the second warp yarns interweaving with the same intermediate weft yarns at common turning points. The first warp yarns comprise groups of intrinsic binder yarns forming a single combined path on the paper side surface, and the second warp yarns are woven as individual yarns or in groups, such as pairs or triplets. The distinct nature of the paper side and machine side layers increases the available combinations of weave patterns to optimize the characteristics for each layer, and the distinct centre planes between the three layers provide improved drainage control.
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
D03D 25/00 - Woven fabrics not otherwise provided for
An oriented, halogen-free flame retardant thermoplastic filament or yarn having physical properties, in particular tensile strength and elongation, that are similar to (or at least approach) those obtained from comparable filaments or yarns which do not provide any, or only limited, flame retardancy properties, as well as woven or braided components made from such yarns is provided. The yarns are made from a polymer blend of a first polymeric component that is a PET polyester having an organic phosphorus compound backbone with an Intrinsic Viscosity of at least 0.95, and a second component that is a polyester flame retardant concentrate based on an organic phosphonated ester which is combined with a polyester.
A papermaker's fabric including at least one system of warp yarns interwoven with at least first and second systems of weft yams, with the weft yarns of the first system of weft yarns having a vertical dimension that is greater than a vertical dimension of the weft yams of the second system.
A method of conditioning a pintle for seaming a papermakers press fabric, and a pintle conditioned by the method. The method comprises arranging the pintle, comprising at least one monofilament yarn of a preselected length, into a coiled configuration; selecting a sealable container constructed of a substantially moisture impermeable material; inserting the coiled pintle into the sealable container; adding to the sealable container a preselected amount of a desiccant; sealing the container and retaining it in a sealed condition; and removing the coiled pintle from the sealed container for insertion into aligned seamable ends of the fabric to be seamed. The method prevents swelling of the pintle during storage in high humidity environments before insertion into a seam, significantly facilitating insertion and reducing insertion times.
A papermaker's fabric including at least one system of warp yarns interwoven with at least first and second systems of weft yarns, with the weft yarns of the first system of weft yarns having a vertical dimension that is greater than a vertical dimension of the weft yarns of the second system. The fabric has a papermaking surface and a machine side surface, and in the papermaking surface, the yarns of the first system of weft yarns are interwoven with the warp yarns to provide groups of four weft yarn floats which form four corners of a box shape, the yarns of the second system of weft yarns are interwoven with the warp yarns so as to pass through the bottom of the box shape, and further provide support areas in pockets located adjacent to the box shapes, and at least one yarn from the second system of weft yarns interweaves with the warp yarns to occupy space in a center plane of the fabric so as to restrict or retard drainage and thereby increase a center plane resistance of the fabric.
A fabric for use in the production of nonwoven material webs comprises at least one component system of monofilament polymeric yarns in each of the machine and cross-machine directions. At least some of the yarns of at least one system comprise surface roughened yarns having a substantially flat surface exposed in the web-contacting surface, with a surface roughness between 5 &mgr;m and 100 &mgr;m. The fabric can be woven, optionally including conductive yarns in either or both of the machine or cross-machine directions. The fabric can also be a spiral link construction comprising coils of helically assembled yarns, at least some of which will be surface roughened yarns; surface roughened stuffer yarns can also be provided within the coils. The fabrics have increased resistance to contamination by materials deposited during web formation and improved web release.
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
D03D 25/00 - Woven fabrics not otherwise provided for
D04H 3/00 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
D04H 3/02 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
D04H 3/08 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
98.
WARP-TIED FORMING FABRIC WITH SELECTIVE WARP PAIR ORDERING
A double layer forming fabric for a papermaking machine is warp-tied, all the warp yarns comprising binder pairs which forming a single combined path in the paper side surface. The pair members exchange positions at an exchange point between successive path segments and are laterally displaced in relation to each other at and between each exchange point. For each successive pair, an order of insertion of the first and second members in relation to each other into the weave is inverted in relation to the order of insertion for members of the immediately preceding pair, such that each first member is adjacent to the first member of the adjacent pair at the closest exchange point, and each second member is adjacent to the second member of the adjacent pair at the closest exchange point. The fabric has improved drainage uniformity leading to improved paper formation and reduced sheet marking.
Segments, typically ceramic, for use in dewatering blades for papermaking and similar machines comprise lower surfaces to each of which at least one interlock member is bonded. The segments are installed by inserting the interlock members into a channel in an intermediate sub-assembly or base member. The members are securely attached within the channel by a suitable adhesive, or clip means to engage the interlock members, with the optional addition of an adhesive. The segments and dewatering blades, and a method of manufacture, allows for the segments to be made as flat units, without unnecessary angular surfaces, simplifies their attachment to the base, and reduces the occurrence of stress cracking or other damage to the segments. A single segment can be used in various dewatering blade types and in more than one orientation in dewatering blades, reducing manufacturing costs by unitizing construction.
Dewatering blades for use in papermaking machines are assembled from two or more pre-finished sub-assemblies which are in turn mounted on a base member. Each sub-assembly comprises a holder, configured to receive a plurality of segments, constructed of a wear-resistant material such as ceramic, which will be located so as to be in sliding contact with the underside of a papermaking fabric. The holders are adapted for insertion into and retention in the base member, which is subsequently affixed to the papermaking machine by known means. The construction of the sub-assemblies allows for the manufacture of a full length blade from a plurality of sub-assemblies, which dramatically reduces manufacturing cost while providing for more rapid deliveries and simplified repair of damaged blades.
