The present invention is directed to forming fabrics. The forming fabrics may include a series of repeat units. Each of the repeat units may include a set of binding warp yarns including a first set of binding warp yarns and a second set of binding warp yarns, wherein a binding warp yarn from the first set is paired with a binding warp yarn from the second set; a set of spring warp yarns, wherein each spring warp yarn is between a first pair of binding warp yarns and a second pair of binding warp yarns; a set of top weft yarns including odd and even top weft yarns, wherein the top weft yarns interweave with the binding warp yarns and the spring warp yarns to form a top fabric layer, wherein the spring warp yarns interweave only with the top weft yarns; a set of bottom weft yarns; and a set of bottom warp yarns, the bottom warp yarns interwoven with the bottom weft yarns to form a bottom fabric layer. The binding warp yarns from the first and second set and the spring warp yarns interweave with the top weft yarns to relatively form a plain weave pattern in defined zones such that (a) the first set of binding warp yarns only pass over even top weft yarns; (b) the second set of binding warp yarns only pass over odd top weft yarns; (c) the first binding warp yarn in the pair is offset from the second binding warp yarn in the pair by at least three top weft yarns to create an overlap in the warp path of the pair of binding warp yarns; and (d) each spring warp yarn passes over even and odd top weft yarns. The binding warp yarns from the first and second set and the bottom warp yarn interweave with the bottom weft yarns.
An endless-woven dryer fabric for a papermaking machine includes: a plurality of upper warp yarns; a plurality of lower warp yarns; and a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units. Each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns. The upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop. The first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
D21F 1/00 - Partie humide des machines à fabriquer des feuilles continues de papier
D03D 13/00 - Tissus caractérisés par la disposition particulière des fils de chaîne ou de trame, p. ex. avec fils de trame incurvés, avec fils de chaîne discontinus, avec fils de chaîne ou de trame en diagonale
5.
Endless woven dryer fabric for papermaking machine
An endless-woven dryer fabric for a papermaking machine includes: a plurality of upper warp yarns; a plurality of lower warp yarns; and a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units. Each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns. The upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop. The first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
D03D 13/00 - Tissus caractérisés par la disposition particulière des fils de chaîne ou de trame, p. ex. avec fils de trame incurvés, avec fils de chaîne discontinus, avec fils de chaîne ou de trame en diagonale
D21F 1/00 - Partie humide des machines à fabriquer des feuilles continues de papier
The present invention is directed to forming fabrics. The forming fabrics may include a series of repeat units. Each of the repeat units may include a set of binding warp yarns including a first set of binding warp yarns and a second set of binding warp yarns, wherein a binding warp yarn from the first set is paired with a binding warp yarn from the second set; a set of spring warp yarns, wherein each spring warp yarn is between a first pair of binding warp yarns and a second pair of binding warp yarns; a set of top weft yarns including odd and even top weft yarns, wherein the top weft yarns interweave with the binding warp yarns and the spring warp yarns to form a top fabric layer, wherein the spring warp yarns interweave only with the top weft yarns; a set of bottom weft yarns; and a set of bottom warp yarns, the bottom warp yarns interwoven with the bottom weft yarns to form a bottom fabric layer. The binding warp yarns from the first and second set and the spring warp yarns interweave with the top weft yarns to relatively form a plain weave pattern in defined zones such that (a) the first set of binding warp yarns only pass over even top weft yarns; (b) the second set of binding warp yarns only pass over odd top weft yarns; (c) the first binding warp yarn in the pair is offset from the second binding warp yarn in the pair by at least three top weft yarns to create an overlap in the warp path of the pair of binding warp yarns; and (d) each spring warp yarn passes over even and odd top weft yarns. The binding warp yarns from the first and second set and the bottom warp yarn interweave with the bottom weft yarns.
The present invention is directed to forming fabrics. The forming fabrics may include a series of repeat units. Each of the repeat units may include a set of binding warp yarns including a first set of binding warp yarns and a second set of binding warp yarns, wherein a binding warp yarn from the first set is paired with a binding warp yarn from the second set; a set of spring warp yarns, wherein each spring warp yarn is between a first pair of binding warp yarns and a second pair of binding warp yarns; a set of top weft yarns including odd and even top weft yarns, wherein the top weft yarns interweave with the binding warp yarns and the spring warp yarns to form a top fabric layer, wherein the spring warp yarns interweave only with the top weft yarns; a set of bottom weft yarns; and a set of bottom warp yarns, the bottom warp yarns interwoven with the bottom weft yarns to form a bottom fabric layer. The binding warp yarns from the first and second set and the spring warp yarns interweave with the top weft yarns to relatively form a plain weave pattern in defined zones such that (a) the first set of binding warp yarns only pass over even top weft yarns; (b) the second set of binding warp yarns only pass over odd top weft yarns; (c) the first binding warp yarn in the pair is offset from the second binding warp yarn in the pair by at least three top weft yarns to create an overlap in the warp path of the pair of binding warp yarns; and (d) each spring warp yarn passes over even and odd top weft yarns. The binding warp yarns from the first and second set and the bottom warp yarn interweave with the bottom weft yarns.
A papermaker's fabric includes a series of repeat units, wherein each of the repeat units includes: a set of top machine direction MD yarns having a first diameter; a set of bottom MD yarns having a second diameter larger than the first diameter; a set of auxiliary bottom MD yarns having the first diameter; a set of top cross machine direction CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns and the auxiliary bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns arranged in pairs, wherein at least one of the stitching yarns of the pair interweaves with the top and bottom fabric layers.
D21F 1/00 - Partie humide des machines à fabriquer des feuilles continues de papier
B32B 7/09 - Liaison entre couches par des moyens mécaniques par couture, aiguilletage ou piqûre
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
D03D 1/00 - Tissus conçus pour faire des articles particuliers
D03D 11/00 - Tissus doubles ou à couches multiples non prévus ailleurs
A papermaker's fabric includes a series of repeat units, wherein each of the repeat units includes: a set of top machine direction MD yarns having a first diameter; a set of bottom MD yarns having a second diameter larger than the first diameter; a set of auxiliary bottom MD yarns having the first diameter; a set of top cross machine direction CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns and the auxiliary bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns arranged in pairs, wherein at least one of the stitching yarns of the pair interweaves with the top and bottom fabric layers.
D21F 1/00 - Partie humide des machines à fabriquer des feuilles continues de papier
B32B 7/09 - Liaison entre couches par des moyens mécaniques par couture, aiguilletage ou piqûre
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
D03D 1/00 - Tissus conçus pour faire des articles particuliers
D03D 11/00 - Tissus doubles ou à couches multiples non prévus ailleurs
A papermaker's fabric includes a series of repeat units, wherein each of the repeat units includes: a set of top machine direction MD yarns having a first diameter; a set of bottom MD yarns having a second diameter larger than the first diameter; a set of auxiliary bottom MD yarns having the first diameter; a set of top cross machine direction CMD yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns and the auxiliary bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns arranged in pairs, wherein at least one of the stitching yarns of the pair interweaves with the top and bottom fabric layers.
A papermaker's fabric includes a series of repeat units, wherein each of the repeat units includes: a set of top machine direction (MD) yarns having a first diameter; a set of bottom MD yarns having a second diameter larger than the first diameter; a set of auxiliary bottom MD yarns having the first diameter; a set of top cross machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom CMD yarns interwoven with the bottom MD yarns and the auxiliary bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns arranged in pairs, wherein at least one of the stitching yarns of the pair interweaves with the top and bottom fabric layers.
The present invention is directed to a fiber cement felt comprising repeat units, each of which includes top, middle, and bottom machine direction yarns and cross-machine direction yarns interwoven with the top, middle, and bottom machine direction yarns in a predetermined weave pattern. The top, middle, and bottom machine direction yarns may comprise effect yarns and linear yarns without the need for a batt layer.
D03D 11/00 - Tissus doubles ou à couches multiples non prévus ailleurs
B28B 5/02 - Fabrication d'objets façonnés à partir du matériau dans des moules ou sur des surfaces de moulage, supportés ou constitués par des transporteurs à l'intérieur ou sur ceux-ci, quel que soit le mode de façonnage sur des transporteurs du type à courroie ou chaîne sans fin
15.
Felt for forming fiber cement articles and related methods
The present invention is directed to a fiber cement felt comprising repeat units, each of which includes top, middle, and bottom machine direction yarns and cross-machine direction yarns interwoven with the top, middle, and bottom machine direction yarns in a predetermined weave pattern. The top, middle, and bottom machine direction yarns may comprise effect yarns and linear yarns without the need for a batt layer.
B28B 1/52 - Fabrication d'objets façonnés à partir du matériau spécialement adaptée à la fabrication d'objets à partir de mélanges contenant des fibres
B28B 1/42 - Fabrication d'objets façonnés à partir du matériau en appliquant le matériau sur un noyau ou une autre surface de moulage pour former une couche sur celle-ci par enveloppement, p. ex. par enroulement en utilisant des mélanges contenant des fibres, p. ex. pour la fabrication de feuilles par tranchage de la couche enroulée
D03D 11/00 - Tissus doubles ou à couches multiples non prévus ailleurs
B28B 3/12 - Fabrication d'objets façonnés en utilisant des pressesPresses spécialement adaptées à ce travail dans laquelle un ou plusieurs cylindres exercent une pression sur le matériau
(c) tensioning the fabric so that each of the ends of the second set of MD yarns forms a gap with a respective end of first set of MD yarns that approaches the seam from the opposite direction, and wherein the gap is no more than about 0.3 mm.
A method of making a fabric for a press felt for a papermaking machine includes: forming a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, comprising a plurality of repeat units, each of the repeat units comprising a plurality of cabled cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, wherein the first set of MD yarns include seam loops at their ends that capture a first pintle, and wherein the second set of MD yarns include loops at their ends that capture a second pintle that is positioned above the first pintle; and removing the second pintle from the ends of the second set of MD yarns; and tensioning the fabric so that each of the ends of the second set of MD yarns forms a gap with a respective end of first set of MD yarns that approaches the seam from the opposite direction, and wherein the gap is no more than about 0.3 mm.
A press felt for a papermaking machine includes: (a) a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, wherein the first yarns include seam loops at their ends and the second yarns are devoid of seam loops at their ends; and (b) at least one batt layer overlying the base fabric.
A papermaker's felt includes a base fabric (24) having a seam (30, 32, 34) and at least one batt layer (52) overlying the base fabric, wherein the batt layer includes a flap (52a) that overlies the seam. The batt layer comprises multiple batt sublayers (53) and at least one scrim layer (54), the scrim layer comprising a polyamide elastomer or a polyolefin elastomer.
A fiber cement felt includes: a base fabric layer including machine direction yarns (MD yarns) and cross-machine direction yarns (CMD yarns); and one or more batt layers overlying the base fabric layer. One of the MD yarns, CMD yarns, and batt layer includes erodible cellulosic fibers.
B28B 1/52 - Fabrication d'objets façonnés à partir du matériau spécialement adaptée à la fabrication d'objets à partir de mélanges contenant des fibres
31.
FABRIC FORMED BY THREE-DIMENSIONAL PRINTING PROCESS
A fiber cement felt includes: a base fabric layer including MD and CMD yarns interwoven with each other, wherein the CMD yarns comprise twisted monofilaments; and at least one batt layer overlying the base fabric layer.
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
D03D 1/00 - Tissus conçus pour faire des articles particuliers
B32B 5/08 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments les fibres ou filaments d'une couche étant disposés d'une certaine manière ou étant faits de substances différentes
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
A press felt includes: a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of exterior machine direction (MD) yarns, each of which includes an upper run and a lower run merging with seam loops at each end, a plurality of middle MD yarns positioned between the upper and lower runs of the exterior MD yams, a plurality of cross machine direction (CMD) yarns interwoven with the exterior MD yarns and the middle MD yarns in a predetermined regular weave pattern, the seam loops defining the longitudinal ends of the press felt; and a batt layer overlying the base fabric.
A fiber cement felt includes: a base fabric layer including MD and CMD yarns interwoven with each other, wherein the CMD yarns comprise twisted monofilaments; and at least one batt layer overlying the base fabric layer.
D03D 1/00 - Tissus conçus pour faire des articles particuliers
D03D 15/00 - Tissus caractérisés par la matière, la structure ou les propriétés des fibres, des filaments, des filés, des fils ou des autres éléments utilisés en chaîne ou en trame
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
35.
PAPERMAKING FORMING FABRIC WITH LONG BOTTOM CMD YARN FLOATS
A papermaking forming fabric includes a series of repeat unit, wherein each of the repeat units includes: a set of top machine direction (MD) yarns; a set of top cross-machine direction (CMD) yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom MD yarns; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; and a set of stitching yarns interwoven with the top and bottom fabric layers. The bottom MD yarns and bottom CMD are woven such that floats formed by the bottom CMD yarns under the bottom MD yarns are at least 1.8 mm in length. A first ratio of top MD yarn coverage area to bottom MD yarn coverage area is less than 0.5, and a second ratio of bottom CMD yarn cross-sectional area to bottom MD yarn cross-sectional area is greater than 2.0. In this structure, the fabric can provide, inter alia, improved drainage.
A method of forming a fiber cement article includes the steps of: (a) providing a fiber cement felt (30), the fiber cement felt (30) comprising a base fabric layer (32) that includes a set of parallel machine direction (MD) yarns (40); (b) depositing a fiber cement slurry (14) on the fiber cement felt (30); (c) removing moisture from the slurry (14); and (d) transferring slurry (14) b from the felt (30) to a forming structureb (22).
B28B 1/52 - Fabrication d'objets façonnés à partir du matériau spécialement adaptée à la fabrication d'objets à partir de mélanges contenant des fibres
37.
FABRIC FOR NON-WOVEN WEB FORMING PROCESS AND METHOD OF USING SAME
A method of manufacturing a non-woven web includes the step of collecting stretched filaments that form the non-woven web on a fabric in an apparatus for the formation of non-woven webs. The fabric comprises machine direction (MD) yarns and cross-machine direction (CMD) yarns, wherein the MD and CMD yarns are interwoven in a repeating pattern in which at least some of the CMD yarns are interwoven with the MD yarns in pairs that follow the same weaving sequence. Such a fabric can provide potential advantages such as reduced air leakage, reduced air disturbances, and improved web hold-down effect.
D03D 13/00 - Tissus caractérisés par la disposition particulière des fils de chaîne ou de trame, p. ex. avec fils de trame incurvés, avec fils de chaîne discontinus, avec fils de chaîne ou de trame en diagonale
D03D 15/00 - Tissus caractérisés par la matière, la structure ou les propriétés des fibres, des filaments, des filés, des fils ou des autres éléments utilisés en chaîne ou en trame
