Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• B32B 5/22 - 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
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 7/08 - Felts
• D21F 9/00 - Complete machines for making continuous webs of paper

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven or nonwoven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/10 - 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 reinforced with filaments
• 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
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 1/80 - Pulp catching, de-watering, or recoveringRe-use of pulp-water using endless screening belts
• B33Y 80/00 - Products made by additive manufacturing
• D21F 1/40 - Rolls
• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/18 - Drying webs by hot air

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B29L 31/00 - Other particular articles
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 17/02 - Material of vegetable origin
• D21H 17/35 - Polyalkenes, e.g. polystyrene
• D21H 21/18 - Reinforcing agents
• D21H 21/20 - Wet strength agents
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• D21H 21/24 - Surfactants
• D21H 27/30 - Multi-ply
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/66 - Pulp catching, de-watering, or recoveringRe-use of pulp-water
• D21F 3/02 - Wet presses
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• D21F 3/02 - Wet presses

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 9/02 - Complete machines for making continuous webs of paper of the Fourdrinier type
• D21F 1/02 - Head boxes of Fourdrinier machines
• D21F 3/02 - Wet presses
• D21F 3/04 - Arrangements thereof
• D21F 3/10 - Suction rolls, e.g. couch rolls
• D21F 5/02 - Drying on cylinders
• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/18 - Drying webs by hot air
• D21F 7/08 - Felts
• D21G 9/00 - Other accessories for paper-making machines

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven or nonwoven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/10 - 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 reinforced with filaments
• 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
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B33Y 80/00 - Products made by additive manufacturing
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• B29L 31/00 - Other particular articles
• B33Y 10/00 - Processes of additive manufacturing

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/10 - 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 reinforced with filaments
• 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
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• D21F 3/02 - Wet presses

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/06 - Regulating pulp flow
• D21F 1/66 - Pulp catching, de-watering, or recoveringRe-use of pulp-water
• D21F 3/02 - Wet presses
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 17/02 - Material of vegetable origin
• D21H 17/35 - Polyalkenes, e.g. polystyrene
• D21H 21/18 - Reinforcing agents
• D21H 21/20 - Wet strength agents
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• D21H 21/24 - Surfactants
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 17/02 - Material of vegetable origin
• D21H 17/35 - Polyalkenes, e.g. polystyrene
• D21H 21/18 - Reinforcing agents
• D21H 21/20 - Wet strength agents
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• D21H 21/24 - Surfactants
• D21H 27/30 - Multi-ply
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped

Abstract

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper
• D21F 3/08 - Pressure rolls
• D21F 5/00 - Dryer section of machines for making continuous webs of paper
• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/18 - Drying webs by hot air
• D21G 1/00 - CalendersSmoothing apparatus

Abstract

A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers.

IPC Classes  ?

• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/20 - Waste heat recovery
• F26B 5/04 - Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
• F26B 21/10 - TemperaturePressure
• F26B 21/08 - Humidity

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/12 - 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
• 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B32B 5/10 - 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 reinforced with filaments
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A method of making an absorbent structure including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

IPC Classes  ?

• D21H 21/20 - Wet strength agents
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
• D21H 17/37 - Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
• D21H 17/42 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
• D21H 17/55 - PolyamidesPolyaminoamidesPolyester-amides
• D21H 27/30 - Multi-ply

Abstract

A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers. 4824-9866-4620v.1Date Recue/Date Received 2020-11-13

IPC Classes  ?

• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/18 - Drying webs by hot air
• D21F 5/20 - Waste heat recovery

Abstract

The present invention provides for manufacturing processes of structuring fabrics that contain a web contacting layer with seams that do not cause defects in the sheet that can result in sheet breaks during the paper machine process. Structuring fabrics with a web contacting layer that can have damaged sections replaced rather than replacing the entire structuring fabric, which is costly and time consuming, are also provided. Additionally, a process for manufacturing the web contacting layer by laying down polymers of specific material properties in an additive manner under computer control (3-D printing) is provided.

IPC Classes  ?

• D21F 7/08 - Felts
• D03D 1/00 - Woven fabrics designed to make specified articles
• 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 5/26 - 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 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 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing
• B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• 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 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
• 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
• D03D 11/00 - Double or multi-ply fabrics not otherwise provided for
• D21F 7/10 - Seams thereof

Abstract

The present invention provides for manufacturing processes of structuring fabrics that contain a web contacting layer with seams that do not cause defects in the sheet that can result in sheet breaks during the paper machine process. Structuring fabrics with a web contacting layer that can have damaged sections replaced rather than replacing the entire structuring fabric, which is costly and time consuming, are also provided. The web-contacting layer includes a cured thermosetting polymer blend. Additionally, a process for manufacturing the web contacting layer by laying down polymers of specific material properties in an additive manner under computer control (3-D printing) is provided.

IPC Classes  ?

• B32B 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
• D21F 1/00 - Wet end of machines for making continuous webs of paper

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 3/02 - Wet presses
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/32 - Washing wire-cloths or felts
• D21F 5/18 - Drying webs by hot air
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/32 - Washing wire-cloths or felts
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper
• D21F 5/18 - Drying webs by hot air

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/66 - Pulp catching, de-watering, or recoveringRe-use of pulp-water
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 3/02 - Wet presses

Abstract

A machine or apparatus for producing structured tissue or towel using a press section.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper

Abstract

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

IPC Classes  ?

• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 21/20 - Wet strength agents
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
• D21H 21/24 - Surfactants
• D21H 17/02 - Material of vegetable origin
• D21H 17/35 - Polyalkenes, e.g. polystyrene
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• D21H 21/18 - Reinforcing agents

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B33Y 80/00 - Products made by additive manufacturing
• B33Y 10/00 - Processes of additive manufacturing
• B29L 31/00 - Other particular articles

Abstract

A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers.

IPC Classes  ?

• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/20 - Waste heat recovery
• F26B 5/04 - Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
• F26B 21/10 - TemperaturePressure
• F26B 21/08 - Humidity

Abstract

An apparatus for producing endless 3-D printed belts using in papermaking and an apparatus for producing endless 3-D printed belts laminated to a substrate for additional strength and dimensional stability during use.

IPC Classes  ?

• B29C 64/10 - Processes of additive manufacturing
• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/236 - Driving means for motion in a direction within the plane of a layer
• B29C 64/241 - Driving means for rotary motion
• B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
• B29C 65/16 - Laser beam
• B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
• B29D 29/00 - Producing belts or bands
• B33Y 80/00 - Products made by additive manufacturing
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 3/02 - Wet presses
• D21F 7/08 - Felts
• B29L 31/00 - Other particular articles

Abstract

An absorbent structure with high wet strength, absorbency and softness made by a process including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

IPC Classes  ?

• D21H 21/20 - Wet strength agents
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution
• D21H 17/37 - Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
• D21H 17/42 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
• D21H 17/55 - PolyamidesPolyaminoamidesPolyester-amides
• D21H 27/30 - Multi-ply

Abstract

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21G 1/00 - CalendersSmoothing apparatus
• D21F 5/18 - Drying webs by hot air
• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/00 - Dryer section of machines for making continuous webs of paper
• D21F 3/08 - Pressure rolls
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/12 - 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
• 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B32B 5/10 - 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 reinforced with filaments
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

An apparatus for producing endless 3-D printed belts using in papermaking and an apparatus for producing endless 3-D printed belts laminated to a substrate for additional strength and dimensional stability during use.

IPC Classes  ?

• 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 5/12 - 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
• 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

Abstract

An apparatus for producing endless 3-D printed belts using in papermaking and an apparatus for producing endless 3-D printed belts laminated to a substrate for additional strength and dimensional stability during use.

IPC Classes  ?

• 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 5/12 - 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
• 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

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/12 - 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
• 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
• B32B 5/10 - 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 reinforced with filaments
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/12 - 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
• 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 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B32B 5/10 - 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 reinforced with filaments
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/02 - Patterned paper
• D21H 27/30 - Multi-ply

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 27/02 - Patterned paper
• D21H 21/20 - Wet strength agents
• D21H 17/35 - Polyalkenes, e.g. polystyrene
• D21H 17/02 - Material of vegetable origin
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• D21H 21/18 - Reinforcing agents
• D21H 21/24 - Surfactants

Abstract

A tissue product including a laminate of at least two plies of a multi-layer tissue web, the tissue product having a softness value (HF) of 92.0 or greater, a lint value of 4.5 or less, and an Sdr of greater than 3.0.

IPC Classes  ?

• D21H 27/02 - Patterned paper
• D21H 27/30 - Multi-ply

Abstract

A method of making a tissue or paper towel product including forming two or more multi-layered webs of cellulosic fibers by a papermaking process using a structured fabric, the papermaking process comprising a step of adding a cross-linker to a pulp slurry comprising the cellulosic fibers so that at least some of the cellulosic fibers are cross-linked within the pulp slurry, and laminating the two or more multi-layered webs together so as to form a multi-ply product, each ply of the multi-ply product comprising cross-linked fibers as a percentage of the total fiber mix of the ply.

IPC Classes  ?

• A47K 10/16 - Paper towelsToilet paperHolders therefor
• D21H 17/25 - Cellulose
• D21H 21/18 - Reinforcing agents

Abstract

A disposable tissue or paper towel product including at least two plies, an exposed outer surface of at least one of the two plies comprising a plurality of pockets, the plurality of pockets having an average volume greater than 0.4 mm3 and an average surface area of 2.5 mm2, wherein the product is formed using a structured fabric with both a left handed and right handed twill pattern that reverses itself periodically.

IPC Classes  ?

• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
• 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

Abstract

A disposable tissue or paper towel product including at least two plies, an exposed outer surface of at least one of the two plies comprising a plurality of pockets, the plurality of pockets having an average volume greater than 0.4 mm3 and an average surface area of 2.5 mm2, wherein the product is formed using a structured fabric with both a left handed and right handed twill pattern that reverses itself periodically.

IPC Classes  ?

• 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 27/32 - Multi-ply with materials applied between the sheets
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped

Abstract

A method of making a tissue or paper towel product including forming two or more multi-layered webs of cellulosic fibers by a papermaking process using a structured fabric, the papermaking process comprising a step of adding a cross-linker to a pulp slurry comprising the cellulosic fibers so that at least some of the cellulosic fibers are cross-linked within the pulp slurry, and laminating the two or more multi-layered webs together so as to form a multi-ply product, each ply of the multi-ply product comprising cross-linked fibers as a percentage of the total fiber mix of the ply.

IPC Classes  ?

• D21H 27/38 - Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
• D21H 27/30 - Multi-ply
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 11/20 - Chemically or biochemically modified fibres
• D21H 17/29 - Starch cationic
• D21H 21/18 - Reinforcing agents
• D21H 23/04 - Addition to the pulpAfter-treatment of added substances in the pulp
• D21H 21/22 - Agents rendering paper porous, absorbent or bulky
• B32B 29/00 - Layered products essentially comprising paper or cardboard
• D21H 11/18 - Highly hydrated, swollen or fibrillatable fibres

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29C 67/00 - Shaping techniques not covered by groups , or
• B33Y 80/00 - Products made by additive manufacturing
• D21F 7/08 - Felts
• B33Y 10/00 - Processes of additive manufacturing
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B29L 31/00 - Other particular articles

Abstract

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.

IPC Classes  ?

• D21F 1/02 - Head boxes of Fourdrinier machines
• D21F 11/02 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type

Abstract

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.

IPC Classes  ?

• D21F 1/02 - Head boxes of Fourdrinier machines
• D21F 11/02 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines of the Fourdrinier type

Abstract

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 5/14 - Drying webs by applying vacuum
• D21F 5/18 - Drying webs by hot air
• D21F 5/00 - Dryer section of machines for making continuous webs of paper
• D21G 1/00 - CalendersSmoothing apparatus
• D21F 3/08 - Pressure rolls
• D21F 9/00 - Complete machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• D21F 11/14 - Making cellulose wadding, filter- or blotting paper

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 7/08 - Felts
• 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 5/12 - 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
• 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
• B32B 5/10 - 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 reinforced with filaments
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• 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 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection

Abstract

A method of making an absorbent structure including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

IPC Classes  ?

• D21H 17/42 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
• D21H 21/18 - Reinforcing agents
• D21H 23/76 - Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect

Abstract

An absorbent structure having a CD wet tensile strength value that is at least 35% of the value of a CD dry tensile strength value of the absorbent structure.

IPC Classes  ?

• D21H 27/30 - Multi-ply

Abstract

A method of making an absorbent structure including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

IPC Classes  ?

• D21H 17/42 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
• D21H 21/18 - Reinforcing agents
• D21H 23/76 - Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect

Abstract

A method of making an absorbent structure including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

IPC Classes  ?

• D21H 21/20 - Wet strength agents
• D21C 5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
• D21H 17/42 - Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
• D21H 17/55 - PolyamidesPolyaminoamidesPolyester-amides
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 27/30 - Multi-ply
• D21H 17/37 - Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
• D21H 17/00 - Non-fibrous material added to the pulp, characterised by its constitutionPaper-impregnating material characterised by its constitution

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 7/12 - Drying
• D21F 1/10 - Wire-cloths
• D21F 3/00 - Press section of machines for making continuous webs of paper
• D21F 7/08 - Felts

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 1/10 - Wire-cloths
• D21F 3/00 - Press section of machines for making continuous webs of paper
• D21F 7/08 - Felts
• D21F 7/12 - Drying

Abstract

A fabric or belt for a papermaking machine including a first layer that defines a web contacting surface and a second layer that supports the first layer. The first layer is made of extruded polymer and includes a plurality of first elements aligned in a first direction, a plurality of second elements aligned in a second direction and extending over the plurality of first elements, and a plurality of open portions defined by the plurality of first and second elements. The second layer is made of woven fabric. The first layer is bonded to the second layer so that the first layer extends only partially through the second layer and an interface formed between the first and second layers includes bonded and unbonded portions and airflow channels that extend in a plane parallel to the first and second layers.

IPC Classes  ?

• 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
• D21F 7/08 - Felts
• 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 5/10 - 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 reinforced with filaments
• 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
• 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
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• B32B 7/04 - Interconnection of layers
• B32B 7/08 - Interconnection of layers by mechanical means
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
• B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes

Abstract

2, wherein the product is formed using a structured fabric with both a left handed and right handed twill pattern that reverses itself periodically.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• D21H 27/40 - Multi-ply at least one of the sheets being non-planar, e.g. crêped
• D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
• D21H 27/32 - Multi-ply with materials applied between the sheets
• 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

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29D 29/00 - Producing belts or bands
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 1/10 - Wire-cloths

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29C 67/00 - Shaping techniques not covered by groups , or
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 11/00 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines
• B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29L 31/00 - Other particular articles
• B33Y 10/00 - Processes of additive manufacturing

Abstract

A papermaking belt including zones of material laid down successively using a 3D printing process. The zones include at least a pocket zone configured to form three dimensional structures in a paper web by applying vacuum to pull the paper web against the pocket zone. In at least one exemplary embodiment, the zone also include at least one vacuum breaking zone configured to limit an amount of paper fibers pulled through the pocket zone by the applied vacuum.

IPC Classes  ?

• B29D 29/00 - Producing belts or bands
• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D21F 1/10 - Wire-cloths