US20240026604A1 - Multicolor polyester fabric and methods of manufacturing same - Google Patents
Multicolor polyester fabric and methods of manufacturing same Download PDFInfo
- Publication number
- US20240026604A1 US20240026604A1 US18/039,778 US202118039778A US2024026604A1 US 20240026604 A1 US20240026604 A1 US 20240026604A1 US 202118039778 A US202118039778 A US 202118039778A US 2024026604 A1 US2024026604 A1 US 2024026604A1
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- United States
- Prior art keywords
- yarn
- carpet
- dye
- cationically
- dyed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920000728 polyester Polymers 0.000 title claims abstract description 41
- 239000004744 fabric Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title abstract description 23
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000004952 Polyamide Substances 0.000 claims abstract description 29
- 229920002647 polyamide Polymers 0.000 claims abstract description 29
- 239000000981 basic dye Substances 0.000 claims abstract description 24
- 239000000986 disperse dye Substances 0.000 claims abstract description 17
- 239000000980 acid dye Substances 0.000 claims abstract description 10
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims description 34
- 239000000975 dye Substances 0.000 claims description 33
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 14
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 14
- -1 polyethylene terephthalate Polymers 0.000 claims description 13
- 239000002759 woven fabric Substances 0.000 claims description 11
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 49
- 239000000835 fiber Substances 0.000 description 22
- 238000009732 tufting Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 9
- 239000000945 filler Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 8
- 125000002091 cationic group Chemical group 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000009978 beck dyeing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- YZTJKOLMWJNVFH-UHFFFAOYSA-N 2-sulfobenzene-1,3-dicarboxylic acid Chemical group OC(=O)C1=CC=CC(C(O)=O)=C1S(O)(=O)=O YZTJKOLMWJNVFH-UHFFFAOYSA-N 0.000 description 1
- 241000284156 Clerodendrum quadriloculare Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241001354471 Pseudobahia Species 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 235000004879 dioscorea Nutrition 0.000 description 1
- 238000009967 direct dyeing Methods 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000009968 stock dyeing Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009969 top dyeing Methods 0.000 description 1
- 150000004684 trihydrates Chemical class 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000009970 yarn dyeing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
- D06N7/0065—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf characterised by the pile
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0063—Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D27/00—Woven pile fabrics
- D03D27/12—Woven pile fabrics wherein pile tufts are inserted during weaving
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
- D05C17/02—Tufted products
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0096—Multicolour dyeing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/30—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using sulfur dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/241—Polyamides; Polyurethanes using acid dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/242—Polyamides; Polyurethanes using basic dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/26—Polyamides; Polyurethanes using dispersed dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/522—Polyesters using basic dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/02—Synthetic macromolecular fibres
- D06N2201/0263—Polyamide fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2503/00—Domestic or personal
- D10B2503/04—Floor or wall coverings; Carpets
Definitions
- the invention relates to fabrics, particularly in carpets, comprising a cationically-dyeable polyester effect yarn, dyed with a basic dye, and a background polyamide or polyester yarn, not dyed with a basic dye, and wherein the fabric has been overdyed with a disperse or acid dye.
- the invention further relates to methods of preparing such overdyed fabrics, and articles comprising such fabrics, such as rugs and mats.
- Some carpets are made with two types of yarns.
- the first is known as an effect yarn, and polyesters are dyed (often space-dyed) prior to tufting, typically with a disperse dye.
- the second yarn is known as a “background yarn,” and is typically undyed, but may be dyed with a different dye. After tufting both yarns, the carpet is then overdyed with a different dye, usually a disperse dye.
- a need exists for a carpet comprising an effect yarn and a background yarn tufted together, with improved colorfastness in the effect yarn during a subsequent overdyeing process, to improve color rendition and contrast in the finished carpet.
- An embodiment of the invention is a carpet comprising pile, said pile comprising a first yarn and a second yarn, said pile being tufted into a primary backing;
- An embodiment of the invention is a carpet comprising a woven facecloth, said woven facecloth comprising a first yarn and a second yarn, said first yarn being interwoven with said second yarn;
- An embodiment of the invention is a method of manufacturing a carpet, said method comprising overdyeing a carpet facecloth with a disperse dye or an acid dye:
- An embodiment of the invention is a woven fabric comprising a first yarn interwoven with a second yarn;
- An embodiment of the invention is a carpet comprising any woven fabric as described above.
- FIG. 1 A is a cross-section diagram of a tufted carpet in accordance with a portion of an embodiment of the present invention.
- FIG. 1 B is a cross-section diagram of a woven carpet in accordance with a portion of an embodiment of the present invention.
- FIG. 2 is a block diagram of an exemplary process for preparing an embodiment of the carpet of the present invention.
- first,” “second,” and the like, “primary,” “exemplary,” “secondary,” and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms “a,” “an,” and “the” do not denote a limitation of quantity, but rather denote the presence of “at least one” of the referenced item.
- cationic-dyeable polyester or “cationically-dyeable polymer” refers to a polymer which has been modified so as to allow cationic molecules, such as cationic dyes, to bind thereto.
- Cationic-dyeable polymers are anionic.
- a “basic dye” is a dye known/made to dye anionic fibers. Those skilled in the art will readily know these.
- face fabric or “carpet,” refers to yarns or fibers in combination with a primary backing.
- to “secure” two objects together means to fix or attach the objects to each other, by means such as an adhesive or otherwise.
- An embodiment of the invention is a carpet comprising pile, said pile comprising a first yarn and a second yarn, said pile being tufted into a primary backing;
- An embodiment of the invention is a carpet comprising a woven facecloth, said woven facecloth comprising a first yarn and a second yarn, said first yarn being interwoven with said second yarn;
- said second yarn comprises a polyester
- said second yarn comprises a polyamide.
- said first yarn has been dyed with a basic dye; and wherein said second yarn has been dyed with a second dye, or is undyed.
- said carpet has been overdyed with a disperse dye.
- said first yarn comprises polyethylene terephthalate (PET) or polytrimethylene terephthalate (PTT).
- PET polyethylene terephthalate
- PTT polytrimethylene terephthalate
- said first yarn comprises sulfonated entities. In a further embodiment, said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight.
- At least one of said first yarn and said second yarn comprises continuous filaments.
- said continuous filaments are bulked continuous filaments.
- said carpet has at least one additional cationically-dyeable polyester yarn.
- said carpet has at least one additional polyester or polyamide yarn.
- said second yarn comprises a polyamide, and said carpet has been overdyed with an acid dye.
- said first yarn has been space-dyed.
- said first yarn comprises cationically-dyeable polyethylene terephthalate (PET) or cationically-dyeable polytrimethylene terephthalate (PTT).
- PET cationically-dyeable polyethylene terephthalate
- PTT cationically-dyeable polytrimethylene terephthalate
- said first yarn comprises sulfonated entities. In a further embodiment, said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight.
- At least one of said first yarn and said second yarn comprises continuous filaments.
- said continuous filaments are bulked continuous filaments.
- said carpet has at least one additional cationically-dyeable polyester yarn.
- said carpet has at least one additional polyester or polyamide yarn.
- An embodiment of the invention is a method of manufacturing a carpet, said method comprising overdyeing a carpet facecloth with a disperse dye or an acid dye:
- said second yarn comprises a polyester, and said carpet is overdyed with a disperse dye.
- said second yarn comprises a polyamide.
- said carpet facecloth further comprises at least one additional yarn comprising a polyester or a polyamide, which has been dyed with a second or a third dye, or is undyed.
- An embodiment of the invention is a woven fabric comprising a first yarn interwoven with a second yarn;
- said second yarn comprises a polyester, and said fabric has been overdyed with a disperse dye.
- said second yarn comprises a polyamide, and said fabric has been overdyed with a disperse dye or an acid dye.
- An embodiment of the invention is a carpet comprising any woven fabric as described above.
- FIG. 1 A illustrates schematically one potential carpet construction. It is generally designated by reference numeral 100 .
- the carpet 100 includes face yarn (or pile yarn) 110 , which is tufted into a mesh, woven, or spunbonded fabric known as a primary backing 120 , forming a facecloth 125 .
- the primary backing 120 is woven.
- the face yarn 110 includes both effect yarn 112 and background yarn 114 .
- the primary backing 120 has face yarns 110 tufted therethrough extending outwardly from one face, a primary backcoating or precoat 130 on the opposite face, and, optionally, at least one secondary backcoating or main coat (frequently called a skip coat) 140 .
- Other layers may also be associated with the carpet 100 .
- FIG. 1 B illustrates schematically an alternative construction, comprising a woven facecloth 125 instead of a tufted facecloth.
- face yarns 110 including effect yarn 112 and background yarn 114 , are interwoven to form a woven facecloth 125 .
- Other layers may also be associated with the carpet 100 .
- the primary backcoating or precoat 130 generally comprises carboxylated latex (e.g., a styrene-butadiene-based latex), PVC (polyvinylchloride), EVA (ethylene-vinyl acetate), or other polymer-based material, and the secondary backcoating 140 may also include these same polymers.
- This primary and/or secondary backcoating may be foamed polymer.
- One or both of the primary backcoating 130 and secondary backcoating 140 can include a filler material.
- the most common filler is a mineral filler, such as calcium carbonate, although other fillers, such as alumina trihydrate, bauxite, magnesium hydroxide, or the like, may be utilized.
- the carpet 100 may be produced with the filler in one or both of the primary backcoating 130 and secondary backcoating 140 comprising waste carpeting as all or part of the filler.
- only one single backcoating may be provided instead of a primary and secondary backcoating. Like the primary backcoating in the first alternative, this single backcoating will also anchor the pile yarns in the primary backing. This single backcoating may be composed of the same material as set out for the primary and secondary backcoating.
- the fiber tufts are tufted through a woven or non-woven fabric, which is the primary backing 120 .
- the part of the tufts on the exposed surface of the carpet comprises the face fiber or face yarn 110 .
- a back-coating 130 is applied to the back of the tufted structure to lock in the tufts.
- a woven or non-woven secondary backing 140 is laminated to the back of the primary backing 120 to give the carpet added dimensional stability.
- the primary backing 120 is a supportive scrim through which the tufts are tufted, and frequently comprises a polyolefin, such as polyethylene or polypropylene; however, other materials such as polyester (including, for example, PET) can be used. For example, slit tapes made from PET may be used.
- the secondary backing 140 is a fabric that is adhered behind the primary backing, sandwiching therein the back of the tufts with the backcoating 130 .
- the secondary backing 140 is frequently made of polypropylene; however other backing types, such as jute, PVC (polyvinyl chloride), polyurethane, and PET, can be used.
- the secondary backing 140 may be a non-woven fabric, including, but not limited to, spun-bond, wet-laid, melt-blown, and air-entangled.
- a filler material such as calcium carbonate
- an adhesive material may be applied to the backside of the tufted carpet backing as a slurry in various concentrations.
- a representative filler-to-adhesive ratio can comprise about 80 percent by weight (“wt %” or “%”) calcium carbonate to about 20 wt % adhesive. While calcium carbonate is one of the most commonly employed filler materials, it should be recognized by those skilled in the art to which this disclosure pertains that carpets containing other filler materials can be used in the processes described herein.
- the adhesive material functions to bind the tufts with the backing.
- the adhesive material can include a latex, such as a carboxylic-styrene-butadiene rubber, styrene-butadiene rubber (SBR), natural rubber latex, vinyl acetate ethylene copolymers (VAE or EVA), other natural or synthetic rubbers, urethanes or polymers such as PET. While latex is one of the most commonly employed adhesive materials for holding tufts to the carpet backing, it should be recognized by those skilled in the art to which this disclosure pertains that carpets containing other adhesives can be used in the processes described herein.
- a latex such as a carboxylic-styrene-butadiene rubber, styrene-butadiene rubber (SBR), natural rubber latex, vinyl acetate ethylene copolymers (VAE or EVA), other natural or synthetic rubbers, urethanes or polymers such as PET. While latex is one of the most commonly employed adhesive
- cationically-dyeable polymers may be used in the effect yarn 112 .
- cationically-dyeable polymers or yarns have often been referred to as “cationic polymers” or “cationic yams,” even though they are, in reality, anionic, so that cations may bind thereto.
- cationic polymers such as polymers or yarns
- cationic yams such as polymers or yarns
- the cationically-dyeable polymer may be produced by any method suitable for producing a polymer capable of being dyed by a cationic (basic) dye.
- a sulfonated monomer may be copolymerized with the polymer subunits so as to produce a sulfonated polymer.
- the sulfonated monomer is sulfoisophthalic acid.
- a sulfonated monomer is polymerized with polymer subunits at a higher percentage than will be used in the finished product, so as to produce a highly sulfonated copolymer; this highly sulfonated copolymer is then mixed with polymer and spun, so as to produce a cationically-dyeable polymer fiber.
- Suitable methods for preparing cationically-dyeable polymers are found in, for example, U.S. Pat. Nos. 3,542,743, 3,846,507, 3,898,200, 5,108,684, 5,445,653, 5,889,138, 6,117,550, 6,133,382, and 9,745,415, the contents of each of which are incorporated herein by reference in their entirety.
- the cationically-dyeable polymer comprises sulfur in an amount of at least, at most, or about 1,000 ppm, 2,000 ppm, 3,000 ppm, 4,000 ppm, 5,000 ppm, 6,000 ppm, 7,000 ppm, 8,000 ppm, 9,000 ppm, 10,000 ppm, 15,000 ppm, 20,000 ppm, 25,000 ppm, 30,000 ppm, 35,000 ppm, 40,000 ppm, 45,000 ppm, 50,000 ppm, 60,000 ppm, 70,000 ppm, 80,000 ppm, 90,000 ppm, or 100,000 ppm, compared to the total mass of the polymer.
- the cationically-dyeable polymer is a cationically-dyeable polyester.
- the polyester can comprise cationically-dyeable PET or cationically-dyeable PTT.
- the effect yarn 112 is dyed prior to tufting, with a basic dye.
- the effect yarn 112 is space-dyed prior to tufting.
- the basic dye may be any basic dye known in the art.
- the fibers of the effect yarn 112 are dyed before being twisted into two ply form.
- undyed fibers are spun into yarn, and the yarn is then dyed. This can be done with spun yarns or BCF yarns.
- the dyeing method is selected from the group consisting of direct dyeing, stock dyeing, top dyeing, and yarn dyeing.
- the yarn is dyed with the basic dye in a concentration of 1 g/l to 50 g/l.
- the polymer is a polyamide.
- the polyamide is nylon 6 (polycaprolactam) or nylon 66 (poly(hexamethylene adipamide)).
- the polymer is a polyester.
- the polyester is PET, PTT, or a blend thereof.
- the background yarn 114 is not dyed at all prior to tufting (i.e., is undyed). In an embodiment, the background yarn 114 is dyed prior to tufting with a dye different than that used to dye the effect yarn 112 prior to tufting. In an embodiment, the background yarn 114 is dyed with a disperse dye prior to tufting.
- the polymer used in any of the yarns of the embodiments of the invention may be virgin, recycled, or a blend thereof.
- the fibers may be formed from their respective polymer by any method known in the art to produce fibers from a single polymer or from a blend.
- the polymer can be extruded to have any shape or dimension suitable to polymeric carpet fibers.
- the carpet fibers can undergo any post-spinning processes generally recognized as useful in the preparation of polymeric carpet fibers.
- the fibers may be as-spun or heat-set.
- fibers reference is made to items, recognized in the art as fibers, such as continuous filaments, monofilaments, staple fibers, and the like.
- the fibers can be round or have other shapes, such as octalobal, delta, sunburst (also known as sol), scalloped oval, trilobal, tetra-channel (also known as quatra-channel), scalloped ribbon, ribbon, starburst, and the like.
- the fibers may also be solid, hollow, or multi-hollow.
- the fibers are formed into yarns, and the fibers or yarns can be used to prepare a number of materials, particularly carpets, rugs, mats, and the like.
- the yarns or fibers of the present invention may further comprise other components, such as, without limitation, finishing agents, delusterants, viscosity boosters, optical brighteners, matting agents (e.g., titanium oxide), thermal stabilizing agents (e.g., phosphorous compounds), anti-oxidative agents (e.g., hindered phenol), anti-static agents, pigments, ultra-violet blocking agents, and combinations thereof.
- finishing agents e.g., delusterants, viscosity boosters, optical brighteners
- matting agents e.g., titanium oxide
- thermal stabilizing agents e.g., phosphorous compounds
- anti-oxidative agents e.g., hindered phenol
- anti-static agents pigments
- pigments e.g., ultra-violet blocking agents, and combinations thereof.
- each yarn of the invention may be prepared according to any method for preparing yarns recognized in the art as being useful therefore.
- each yarn of the invention could be partially oriented yarn, spun drawn yarn, textured yarn, friction false-twisted yarn, and bulk continuous filament (“BCF”) yarn.
- Preferred steps in preparing BCF yarn includes spinning (e.g., extruding, cooling, and coating filaments), single stage or multi-stage drawing (such as with heated rolls, heated pin or hot fluid assist) at a defined temperature and draw ratio, annealing, bulking, entangling, optionally relaxing, and winding the filaments on a package for subsequent use.
- the yarns may be tufted in any pattern or arrangement known in the art.
- the effect yarn and the background yarn are each distributed to create a design effect.
- the facecloth will comprise these discrete regions next to each other, creating sharp boundaries, with a visual effect that is more pronounced due to the lack of bleeding during the overdyeing process.
- the facecloth comprises discrete regions, but also contains intermediate areas forming a gradient between 100% effect yarn regions and 100% background yarn regions.
- the gradient in these intermediate areas will be more easily controllable due to the sharper contrast between effect yarns and background yarns, again due to the lack of bleeding during the overdyeing process.
- one or more of the effect and background yarn is a multi-ply yarn.
- the multi-ply yarn is a two-ply, three-ply, four-ply, or five-ply yarn.
- one or more plys of the multiply yarn is cationically dyeable, while the other plys are not. Further, the other plys may be the same as the background yarn or maybe varied from the background yarn.
- the cationically dyeable yarn may be dyed prior to assembly of the multiply yarn or the yarn may be assembled prior to application of the cationic dye.
- Two ply yarns of this different configuration are often called barber pole yarns. These barber yarns are well known to those skilled in the art.
- all yarns in a multi-ply yarn are identical.
- the yarns may be present in the tufted facecloth in any density suitable for carpets.
- Carpet density (CD) is known to be calculated in ounces per cubic yard, via the formula
- the carpet density is at least, at most, or about 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 ounces per cubic yard.
- the carpet comprises at least, at most, or about 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 piles per square meter of effect yarn.
- the carpet comprises at least, at most, or about 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 piles per square meter of background yarn.
- effect yarns make up 1-99% of the total piles of the carpet. In an embodiment, effect yarns make up at least, at most, or about 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% of the total piles of the carpet.
- background yarns make up 1-99% of the total piles of the carpet. In an embodiment, background yarns make up at least, at most, or about 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% of the total piles of the carpet.
- the facecloth 125 or carpet 100 is overdyed with a dye.
- the dye is a disperse dye.
- the dye is an acid dye.
- the effect yarn will be dyed along its entire length.
- the effect yarn is formed into a barber pole with a background yarn, and then tufted or woven alongside background yarn, then overdyed.
- the pH used is 2.0 to 3.0.
- useful dyes are, Yellow GL, Red GRL and Blue GRL liquid dyes.
- buffer, wetter and defoamer are used.
- the singles yarn is dyeset at 275° F. In an embodiment the two ply yarn is heatset at 290° F.
- the present inventors have found that by using a cationically-dyeable polymer in the effect yarn, dyeing the effect yarn with a basic dye prior to tufting, and using a polyester or polyamide background yarn, there is no bleeding of the basic dye onto the background dye during the overdyeing process. As a result, better color rendition and contrast is attained in the final carpet product. This also applies to embodiments in which the background yarn is dyed prior to the overdyeing process, using a dye different than the basic dye used to dye the effect yarn.
- Step 1 Obtaining the Effect Yarn
- the fibers may be obtained via any process known in the art for preparing fibers from polymer, as described hereinabove.
- the cationically-dyeable effect yarn comprising a polymer, is dyed prior to tufting, using a basic dye ( FIG. 2 , block 201 ).
- the effect yarn is completely saturated with dye, so that there will be no or negligible dyeing of the effect yarn during the later overdyeing process.
- the effect yarn may also comprise other components as listed hereinabove.
- Step 2 Obtaining the Background Yarn
- the background yarn is a polyester or polyamide yarn, and may be undyed, or dyed with a dye or pigmented other than that used to dye the effect yarn.
- the background yarn may also comprise other components as listed hereinabove.
- the effect yarn may be pigmented also.
- the effect yarn and the background yarn are both tufted to a primary backing to form a “face fabric” ( FIG. 2 , block 202 ).
- the face fabric may also have a primary backcoating and/or secondary backcoating adhered thereto prior to, or after, overdyeing.
- the face fabric is dyed on a continuous dye range prior to the application of any backcoating.
- the carpet, with or without the primary backcoating and/or secondary backcoating is then overdyed, with a disperse dye or acid dye ( FIG. 2 , block 203 ).
- the carpet is overdyed via a method selected from the group consisting of beck-dyeing, jet-beck dyeing, printing, and Kuster (continuous) dyeing.
- the carpets described herein may be prepared with more than one different kind of effect yarn, and/or more than one kind of background yarn.
- two different polymers may be used to prepare a first and a second effect yarn, wherein the first and the second effect yarns may be dyed with the same basic dye, or with a different basic dye.
- the same polymer may be used to form a first portion of effect yarn and a second portion of effect yarn, wherein the first portion is dyed with a different basic dye than is the second portion.
- polyesters or polyamides may be used to prepare a first and a second background yarn. Both of these may be undyed prior to the overdyeing step; in other embodiments, both may be dyed or pigmented with the same dye prior to tufting, or with different dyes prior to tufting, or one may be dyed and one may be undyed.
- the same polymer may be used to form a first portion of effect yarn and a second portion of effect yarn, wherein the first portion is dyed with a different basic dye than is the second portion.
- the same polyester or polyamide may be used to form a first portion of background yarn and a second portion of background yarn, wherein the first portion is dyed with a different dye than is the second portion prior to tufting, or wherein one portion is dyed while the other is undyed prior to tufting.
- an alternate embodiment uses a woven fabric, rather than a tufted fabric, with the same benefits.
- an effect yarn as described above is interwoven with a background yarn as described above. After the two yarns are interwoven, they are overdyed with a disperse dye.
- the yarns may be single or multi-ply, and may be of any shape known in the art.
- the yarns may be woven using any technique known in the art. Following the formation of the woven fabric, they may be used to prepare a carpet in the same manner as the tufted fabric described above, including via application of a primary and/or secondary backcoating.
Abstract
The invention relates to carpets comprising a cationically-dyeable polyester effect yarn, dyed with a basic dye, and a background polyester or polyamide yarn, not dyed with a basic dye, and wherein the carpet has been overdyed with a disperse dye or an acid dye. The invention further relates to methods of preparing such overdyed carpets.
Description
- The present application claims priority to and the benefit of U.S. Patent Application No. 63/120,534 filed on Dec. 2, 2020, the contents of which are hereby incorporated by reference herein its entirety for all purposes.
- The invention relates to fabrics, particularly in carpets, comprising a cationically-dyeable polyester effect yarn, dyed with a basic dye, and a background polyamide or polyester yarn, not dyed with a basic dye, and wherein the fabric has been overdyed with a disperse or acid dye. The invention further relates to methods of preparing such overdyed fabrics, and articles comprising such fabrics, such as rugs and mats.
- Some carpets are made with two types of yarns. The first is known as an effect yarn, and polyesters are dyed (often space-dyed) prior to tufting, typically with a disperse dye. The second yarn is known as a “background yarn,” and is typically undyed, but may be dyed with a different dye. After tufting both yarns, the carpet is then overdyed with a different dye, usually a disperse dye.
- There is generally little or no effect on the coloration of the effect yarn due to the overdyeing process, as the colors of the effect yarn are saturated. However, some of the dye from the effect yarn will bleed into the background yarn during the overdyeing. This bleeding results in a loss of color rendition and contrast in the final product.
- Accordingly, a need exists for a carpet comprising an effect yarn and a background yarn tufted together, with improved colorfastness in the effect yarn during a subsequent overdyeing process, to improve color rendition and contrast in the finished carpet. A need also exists for improved methods of making such carpets.
- An embodiment of the invention is a carpet comprising pile, said pile comprising a first yarn and a second yarn, said pile being tufted into a primary backing;
-
- wherein said first yarn has a cationically-dyeable polyester yarn; and
- wherein said second yarn comprises a polyester or a polyamide.
- An embodiment of the invention is a carpet comprising a woven facecloth, said woven facecloth comprising a first yarn and a second yarn, said first yarn being interwoven with said second yarn;
-
- wherein said first yarn has a cationically-dyeable polyester yarn; and
- wherein said second yarn comprises a polyester or a polyamide.
- An embodiment of the invention is a method of manufacturing a carpet, said method comprising overdyeing a carpet facecloth with a disperse dye or an acid dye:
-
- wherein said carpet facecloth comprises a first yarn, a second yarn, and a backing;
- wherein said first yarn has a cationically-dyeable polyester yarn and has been dyed with a basic dye;
- wherein said second yarn comprises a polyester or polyamide and has been dyed with a second dye, or is undyed; and
- wherein piles comprising said first yarn and said second yarn have been tufted into said backing.
- An embodiment of the invention is a woven fabric comprising a first yarn interwoven with a second yarn;
-
- wherein said first yarn has a cationically-dyeable polyester yarn which has been dyed with a basic dye prior to being interwoven with the second yarn; and
- wherein said second yarn comprises a polyester or a polyamide, and is undyed, or dyed with a different dye, prior to being interwoven with the first yarn.
- An embodiment of the invention is a carpet comprising any woven fabric as described above.
- Reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
-
FIG. 1A is a cross-section diagram of a tufted carpet in accordance with a portion of an embodiment of the present invention. -
FIG. 1B is a cross-section diagram of a woven carpet in accordance with a portion of an embodiment of the present invention. -
FIG. 2 is a block diagram of an exemplary process for preparing an embodiment of the carpet of the present invention. - The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the inventions are shown. Indeed, these inventions may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout. In the following description, various components may be identified as having specific values or parameters, however, these items are provided as exemplary embodiments. Indeed, the exemplary embodiments do not limit the various aspects and concepts of the present invention as many comparable parameters, sizes, ranges, and/or values may be implemented. The terms “first,” “second,” and the like, “primary,” “exemplary,” “secondary,” and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms “a,” “an,” and “the” do not denote a limitation of quantity, but rather denote the presence of “at least one” of the referenced item.
- Each embodiment disclosed herein is contemplated as being applicable to each of the other disclosed embodiments. All combinations and sub-combinations of the various elements described herein are within the scope of the invention. Further, the invention illustratively disclosed herein suitably may be practiced in the absence of any element which is not specifically disclosed herein.
- It is understood that where a parameter range is provided, all integers and ranges within that range, and tenths and hundredths thereof, are also provided by the embodiments. For example, “5-10%” includes 5%, 6%, 7%, 8%, 9%, and 10%; 5.0%, 5.1%, 5.2% . . . 9.8%, 9.9%, and 10.0%; and 5.00%, 5.01%, 5.02% . . . 9.98%, 9.99%, and 10.00%, as well as, for example, 6-8%, 7-9%, 5.1%-9.9%, and 5.01%-9.99%.
- As used herein, “about” in the context of a numerical value or range means±1, ±5, or ±10% of the numerical value or range recited or claimed.
- As used herein, “cationic-dyeable polyester” or “cationically-dyeable polymer” refers to a polymer which has been modified so as to allow cationic molecules, such as cationic dyes, to bind thereto. Cationic-dyeable polymers are anionic.
- As used herein, a “basic dye” is a dye known/made to dye anionic fibers. Those skilled in the art will readily know these.
- As used here, “face fabric,” or “carpet,” refers to yarns or fibers in combination with a primary backing.
- As used herein, to “secure” two objects together means to fix or attach the objects to each other, by means such as an adhesive or otherwise.
- An embodiment of the invention is a carpet comprising pile, said pile comprising a first yarn and a second yarn, said pile being tufted into a primary backing;
-
- wherein said first yarn has a cationically-dyeable polyester yarn; and
- wherein said second yarn comprises a polyester or a polyamide.
- An embodiment of the invention is a carpet comprising a woven facecloth, said woven facecloth comprising a first yarn and a second yarn, said first yarn being interwoven with said second yarn;
-
- wherein said first yarn has a cationically-dyeable polyester yarn; and
- wherein said second yarn comprises a polyester or a polyamide.
- In an embodiment, said second yarn comprises a polyester.
- In an embodiment, said second yarn comprises a polyamide.
- In an embodiment, said first yarn has been dyed with a basic dye; and wherein said second yarn has been dyed with a second dye, or is undyed.
- In an embodiment, said carpet has been overdyed with a disperse dye.
- In an embodiment, said first yarn comprises polyethylene terephthalate (PET) or polytrimethylene terephthalate (PTT).
- In an embodiment, said first yarn comprises sulfonated entities. In a further embodiment, said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight.
- In an embodiment, at least one of said first yarn and said second yarn comprises continuous filaments. In a further embodiment, said continuous filaments are bulked continuous filaments.
- In an embodiment, said carpet has at least one additional cationically-dyeable polyester yarn.
- In an embodiment, said carpet has at least one additional polyester or polyamide yarn.
- In an embodiment, said second yarn comprises a polyamide, and said carpet has been overdyed with an acid dye.
- In an embodiment, said first yarn has been space-dyed.
- In an embodiment, said first yarn comprises cationically-dyeable polyethylene terephthalate (PET) or cationically-dyeable polytrimethylene terephthalate (PTT).
- In an embodiment, said first yarn comprises sulfonated entities. In a further embodiment, said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight.
- In an embodiment, at least one of said first yarn and said second yarn comprises continuous filaments. In a further embodiment, said continuous filaments are bulked continuous filaments.
- In an embodiment, said carpet has at least one additional cationically-dyeable polyester yarn.
- In an embodiment, said carpet has at least one additional polyester or polyamide yarn.
- An embodiment of the invention is a method of manufacturing a carpet, said method comprising overdyeing a carpet facecloth with a disperse dye or an acid dye:
-
- wherein said carpet facecloth comprises a first yarn, a second yarn, and a backing;
- wherein said first yarn has a cationically-dyeable polyester yarn and has been dyed with a basic dye;
- wherein said second yarn comprises a polyester or a polyamide and has been dyed with a second dye, or is undyed; and
- wherein piles comprising said first yarn and said second yarn have been tufted into said backing.
- In an embodiment, said second yarn comprises a polyester, and said carpet is overdyed with a disperse dye.
- In an embodiment, said second yarn comprises a polyamide.
- In an embodiment, said carpet facecloth further comprises at least one additional yarn comprising a polyester or a polyamide, which has been dyed with a second or a third dye, or is undyed.
- An embodiment of the invention is a woven fabric comprising a first yarn interwoven with a second yarn;
-
- wherein said first yarn has a cationically-dyeable polyester yarn which has been dyed with a basic dye prior to being interwoven with the second yarn; and
- wherein said second yarn comprises a polyester or a polyamide, and is undyed, or dyed with a different dye, prior to being interwoven with the first yarn.
- In an embodiment, said second yarn comprises a polyester, and said fabric has been overdyed with a disperse dye.
- In an embodiment, said second yarn comprises a polyamide, and said fabric has been overdyed with a disperse dye or an acid dye.
- An embodiment of the invention is a carpet comprising any woven fabric as described above.
-
FIG. 1A illustrates schematically one potential carpet construction. It is generally designated byreference numeral 100. Thecarpet 100 includes face yarn (or pile yarn) 110, which is tufted into a mesh, woven, or spunbonded fabric known as aprimary backing 120, forming afacecloth 125. In the illustrated embodiment, theprimary backing 120 is woven. Theface yarn 110 includes botheffect yarn 112 andbackground yarn 114. Theprimary backing 120 hasface yarns 110 tufted therethrough extending outwardly from one face, a primary backcoating orprecoat 130 on the opposite face, and, optionally, at least one secondary backcoating or main coat (frequently called a skip coat) 140. Other layers may also be associated with thecarpet 100. -
FIG. 1B illustrates schematically an alternative construction, comprising awoven facecloth 125 instead of a tufted facecloth. In this embodiment, faceyarns 110, includingeffect yarn 112 andbackground yarn 114, are interwoven to form awoven facecloth 125. On the underside of thefacecloth 125, a primary backcoating orprecoat 130 on the opposite face, and, optionally, at least one secondary backcoating or main coat (frequently called a skip coat) 140. Other layers may also be associated with thecarpet 100. - The primary backcoating or
precoat 130, if present, generally comprises carboxylated latex (e.g., a styrene-butadiene-based latex), PVC (polyvinylchloride), EVA (ethylene-vinyl acetate), or other polymer-based material, and thesecondary backcoating 140 may also include these same polymers. This primary and/or secondary backcoating may be foamed polymer. One or both of theprimary backcoating 130 andsecondary backcoating 140 can include a filler material. The most common filler is a mineral filler, such as calcium carbonate, although other fillers, such as alumina trihydrate, bauxite, magnesium hydroxide, or the like, may be utilized. In certain situations, calcium carbonate can be used with other common materials such as metal salts. Thecarpet 100 may be produced with the filler in one or both of theprimary backcoating 130 andsecondary backcoating 140 comprising waste carpeting as all or part of the filler. As an alternative, only one single backcoating may be provided instead of a primary and secondary backcoating. Like the primary backcoating in the first alternative, this single backcoating will also anchor the pile yarns in the primary backing. This single backcoating may be composed of the same material as set out for the primary and secondary backcoating. - In making the
carpet 100, generally, for the embodiment depicted inFIG. 1A , the fiber tufts are tufted through a woven or non-woven fabric, which is theprimary backing 120. The part of the tufts on the exposed surface of the carpet comprises the face fiber orface yarn 110. A back-coating 130 is applied to the back of the tufted structure to lock in the tufts. Next, a woven or non-wovensecondary backing 140 is laminated to the back of theprimary backing 120 to give the carpet added dimensional stability. - The
primary backing 120 is a supportive scrim through which the tufts are tufted, and frequently comprises a polyolefin, such as polyethylene or polypropylene; however, other materials such as polyester (including, for example, PET) can be used. For example, slit tapes made from PET may be used. Thesecondary backing 140 is a fabric that is adhered behind the primary backing, sandwiching therein the back of the tufts with thebackcoating 130. Thesecondary backing 140 is frequently made of polypropylene; however other backing types, such as jute, PVC (polyvinyl chloride), polyurethane, and PET, can be used. Thesecondary backing 140 may be a non-woven fabric, including, but not limited to, spun-bond, wet-laid, melt-blown, and air-entangled. - A filler material, such as calcium carbonate, and an adhesive material may be applied to the backside of the tufted carpet backing as a slurry in various concentrations. In a preferred embodiment, there is more filler than adhesive material. For example, a representative filler-to-adhesive ratio can comprise about 80 percent by weight (“wt %” or “%”) calcium carbonate to about 20 wt % adhesive. While calcium carbonate is one of the most commonly employed filler materials, it should be recognized by those skilled in the art to which this disclosure pertains that carpets containing other filler materials can be used in the processes described herein.
- The adhesive material functions to bind the tufts with the backing. The adhesive material can include a latex, such as a carboxylic-styrene-butadiene rubber, styrene-butadiene rubber (SBR), natural rubber latex, vinyl acetate ethylene copolymers (VAE or EVA), other natural or synthetic rubbers, urethanes or polymers such as PET. While latex is one of the most commonly employed adhesive materials for holding tufts to the carpet backing, it should be recognized by those skilled in the art to which this disclosure pertains that carpets containing other adhesives can be used in the processes described herein.
- A wide variety of different cationically-dyeable (i.e., anionic) polymers may be used in the
effect yarn 112. In the art, cationically-dyeable polymers or yarns have often been referred to as “cationic polymers” or “cationic yams,” even though they are, in reality, anionic, so that cations may bind thereto. Thus, one of ordinary skill in the art will understand that elements traditionally referred to as cationic (such as polymers or yarns) are, in fact, cationically-dyeable. The cationically-dyeable polymer may be produced by any method suitable for producing a polymer capable of being dyed by a cationic (basic) dye. For example, a sulfonated monomer may be copolymerized with the polymer subunits so as to produce a sulfonated polymer. In an embodiment, the sulfonated monomer is sulfoisophthalic acid. In an embodiment, a sulfonated monomer is polymerized with polymer subunits at a higher percentage than will be used in the finished product, so as to produce a highly sulfonated copolymer; this highly sulfonated copolymer is then mixed with polymer and spun, so as to produce a cationically-dyeable polymer fiber. - Suitable methods for preparing cationically-dyeable polymers are found in, for example, U.S. Pat. Nos. 3,542,743, 3,846,507, 3,898,200, 5,108,684, 5,445,653, 5,889,138, 6,117,550, 6,133,382, and 9,745,415, the contents of each of which are incorporated herein by reference in their entirety.
- In an embodiment, the cationically-dyeable polymer comprises sulfur in an amount of at least, at most, or about 1,000 ppm, 2,000 ppm, 3,000 ppm, 4,000 ppm, 5,000 ppm, 6,000 ppm, 7,000 ppm, 8,000 ppm, 9,000 ppm, 10,000 ppm, 15,000 ppm, 20,000 ppm, 25,000 ppm, 30,000 ppm, 35,000 ppm, 40,000 ppm, 45,000 ppm, 50,000 ppm, 60,000 ppm, 70,000 ppm, 80,000 ppm, 90,000 ppm, or 100,000 ppm, compared to the total mass of the polymer.
- In an embodiment, the cationically-dyeable polymer is a cationically-dyeable polyester. For example, the polyester can comprise cationically-dyeable PET or cationically-dyeable PTT.
- The
effect yarn 112 is dyed prior to tufting, with a basic dye. In an embodiment, theeffect yarn 112 is space-dyed prior to tufting. The basic dye may be any basic dye known in the art. In an embodiment, the fibers of theeffect yarn 112 are dyed before being twisted into two ply form. In an embodiment, undyed fibers are spun into yarn, and the yarn is then dyed. This can be done with spun yarns or BCF yarns. In an embodiment, the dyeing method is selected from the group consisting of direct dyeing, stock dyeing, top dyeing, and yarn dyeing. In an embodiment, the yarn is dyed with the basic dye in a concentration of 1 g/l to 50 g/l. - A wide variety of different polymers may be used to make the
background yarn 114. In an embodiment, the polymer is a polyamide. In an embodiment, the polyamide is nylon 6 (polycaprolactam) or nylon 66 (poly(hexamethylene adipamide)). In an embodiment, the polymer is a polyester. In an embodiment, the polyester is PET, PTT, or a blend thereof. - In an embodiment, the
background yarn 114 is not dyed at all prior to tufting (i.e., is undyed). In an embodiment, thebackground yarn 114 is dyed prior to tufting with a dye different than that used to dye theeffect yarn 112 prior to tufting. In an embodiment, thebackground yarn 114 is dyed with a disperse dye prior to tufting. - Unless otherwise noted, the polymer used in any of the yarns of the embodiments of the invention may be virgin, recycled, or a blend thereof.
- For both the
effect yarn 112 and thebackground yarn 114, the fibers may be formed from their respective polymer by any method known in the art to produce fibers from a single polymer or from a blend. The polymer can be extruded to have any shape or dimension suitable to polymeric carpet fibers. Moreover, the carpet fibers can undergo any post-spinning processes generally recognized as useful in the preparation of polymeric carpet fibers. The fibers may be as-spun or heat-set. By “fibers”, reference is made to items, recognized in the art as fibers, such as continuous filaments, monofilaments, staple fibers, and the like. The fibers can be round or have other shapes, such as octalobal, delta, sunburst (also known as sol), scalloped oval, trilobal, tetra-channel (also known as quatra-channel), scalloped ribbon, ribbon, starburst, and the like. The fibers may also be solid, hollow, or multi-hollow. The fibers are formed into yarns, and the fibers or yarns can be used to prepare a number of materials, particularly carpets, rugs, mats, and the like. - The yarns or fibers of the present invention may further comprise other components, such as, without limitation, finishing agents, delusterants, viscosity boosters, optical brighteners, matting agents (e.g., titanium oxide), thermal stabilizing agents (e.g., phosphorous compounds), anti-oxidative agents (e.g., hindered phenol), anti-static agents, pigments, ultra-violet blocking agents, and combinations thereof.
- Each of the yarns, independently, may be prepared according to any method for preparing yarns recognized in the art as being useful therefore. For example, each yarn of the invention could be partially oriented yarn, spun drawn yarn, textured yarn, friction false-twisted yarn, and bulk continuous filament (“BCF”) yarn. Preferred steps in preparing BCF yarn includes spinning (e.g., extruding, cooling, and coating filaments), single stage or multi-stage drawing (such as with heated rolls, heated pin or hot fluid assist) at a defined temperature and draw ratio, annealing, bulking, entangling, optionally relaxing, and winding the filaments on a package for subsequent use.
- The yarns may be tufted in any pattern or arrangement known in the art. In an embodiment, the effect yarn and the background yarn are each distributed to create a design effect.
- In another embodiment, there are discrete regions of facecloth comprising only the effect yarn, along with discrete regions of facecloth comprising only the background yarn. In an embodiment, the facecloth will comprise these discrete regions next to each other, creating sharp boundaries, with a visual effect that is more pronounced due to the lack of bleeding during the overdyeing process.
- In another embodiment, the facecloth comprises discrete regions, but also contains intermediate areas forming a gradient between 100% effect yarn regions and 100% background yarn regions. The gradient in these intermediate areas will be more easily controllable due to the sharper contrast between effect yarns and background yarns, again due to the lack of bleeding during the overdyeing process.
- In an embodiment, one or more of the effect and background yarn is a multi-ply yarn. In various embodiments, the multi-ply yarn is a two-ply, three-ply, four-ply, or five-ply yarn. one or more plys of the multiply yarn is cationically dyeable, while the other plys are not. Further, the other plys may be the same as the background yarn or maybe varied from the background yarn. The cationically dyeable yarn may be dyed prior to assembly of the multiply yarn or the yarn may be assembled prior to application of the cationic dye. Two ply yarns of this different configuration are often called barber pole yarns. These barber yarns are well known to those skilled in the art. In an embodiment, all yarns in a multi-ply yarn are identical.
- The yarns may be present in the tufted facecloth in any density suitable for carpets. Carpet density (CD) is known to be calculated in ounces per cubic yard, via the formula
-
CD=(FW*36)/PH - where FW is face weight (the weight of the carpet per square yard of carpet, measured in ounces), and PH is the pile height of the carpet, in fractions of an inch. In an embodiment, the carpet density is at least, at most, or about 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 ounces per cubic yard.
- In an embodiment, the carpet comprises at least, at most, or about 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 piles per square meter of effect yarn. In an embodiment, the carpet comprises at least, at most, or about 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500, 5,000, 5,500, 6,000, 6,500, 7,000, 7,500, or 8,000 piles per square meter of background yarn.
- In an embodiment, effect yarns make up 1-99% of the total piles of the carpet. In an embodiment, effect yarns make up at least, at most, or about 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% of the total piles of the carpet.
- In an embodiment, background yarns make up 1-99% of the total piles of the carpet. In an embodiment, background yarns make up at least, at most, or about 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% of the total piles of the carpet.
- Following tufting, the
facecloth 125 orcarpet 100 is overdyed with a dye. In an embodiment, the dye is a disperse dye. In alternate embodiments, the dye is an acid dye. - In an embodiment, as a result of the manufacturing process, the effect yarn will be dyed along its entire length. In an embodiment, the effect yarn is formed into a barber pole with a background yarn, and then tufted or woven alongside background yarn, then overdyed.
- In an embodiment, the pH used is 2.0 to 3.0. In an embodiment, useful dyes are, Yellow GL, Red GRL and Blue GRL liquid dyes. In an embodiment, buffer, wetter and defoamer are used. In an embodiment, the singles yarn is dyeset at 275° F. In an embodiment the two ply yarn is heatset at 290° F.
- As discussed above, a need exists for overdyed carpets containing a dyed effect yarn and a background yarn, and having improved color rendition and contrast between the different yarns.
- The present inventors have found that by using a cationically-dyeable polymer in the effect yarn, dyeing the effect yarn with a basic dye prior to tufting, and using a polyester or polyamide background yarn, there is no bleeding of the basic dye onto the background dye during the overdyeing process. As a result, better color rendition and contrast is attained in the final carpet product. This also applies to embodiments in which the background yarn is dyed prior to the overdyeing process, using a dye different than the basic dye used to dye the effect yarn.
- While embodiments have been illustrated and described in detail above, such illustration and description are to be considered illustrative or exemplary and not restrictive. The same applies to the steps below, which are non-limiting illustrations of a way in which to practice the invention. It will be understood that changes and modifications may be made by those of ordinary skill within the scope and spirit of the following claims. In particular, embodiments within the scope of the invention include any combination of features from different embodiments described above and below.
- Step 1: Obtaining the Effect Yarn
- The fibers may be obtained via any process known in the art for preparing fibers from polymer, as described hereinabove. The cationically-dyeable effect yarn, comprising a polymer, is dyed prior to tufting, using a basic dye (
FIG. 2 , block 201). In an embodiment, the effect yarn is completely saturated with dye, so that there will be no or negligible dyeing of the effect yarn during the later overdyeing process. The effect yarn may also comprise other components as listed hereinabove. - Step 2: Obtaining the Background Yarn
- As noted, the background yarn is a polyester or polyamide yarn, and may be undyed, or dyed with a dye or pigmented other than that used to dye the effect yarn. The background yarn may also comprise other components as listed hereinabove. The effect yarn may be pigmented also.
- Step 3: Preparing Tufted Face Fabric
- In this embodiment, the effect yarn and the background yarn are both tufted to a primary backing to form a “face fabric” (
FIG. 2 , block 202). The face fabric may also have a primary backcoating and/or secondary backcoating adhered thereto prior to, or after, overdyeing. In a preferred embodiment, the face fabric is dyed on a continuous dye range prior to the application of any backcoating. - Step 4: Overdyeing
- The carpet, with or without the primary backcoating and/or secondary backcoating is then overdyed, with a disperse dye or acid dye (
FIG. 2 , block 203). In an embodiment, the carpet is overdyed via a method selected from the group consisting of beck-dyeing, jet-beck dyeing, printing, and Kuster (continuous) dyeing. - The carpets described herein may be prepared with more than one different kind of effect yarn, and/or more than one kind of background yarn. For example, two different polymers may be used to prepare a first and a second effect yarn, wherein the first and the second effect yarns may be dyed with the same basic dye, or with a different basic dye. Alternatively, the same polymer may be used to form a first portion of effect yarn and a second portion of effect yarn, wherein the first portion is dyed with a different basic dye than is the second portion.
- Similarly, two different polyesters or polyamides may be used to prepare a first and a second background yarn. Both of these may be undyed prior to the overdyeing step; in other embodiments, both may be dyed or pigmented with the same dye prior to tufting, or with different dyes prior to tufting, or one may be dyed and one may be undyed. Alternatively, the same polymer may be used to form a first portion of effect yarn and a second portion of effect yarn, wherein the first portion is dyed with a different basic dye than is the second portion. In another embodiment, the same polyester or polyamide may be used to form a first portion of background yarn and a second portion of background yarn, wherein the first portion is dyed with a different dye than is the second portion prior to tufting, or wherein one portion is dyed while the other is undyed prior to tufting.
- Further, while the above description primarily relates to fabrics prepared by tufting an effect yarn and a background yarn into a primary backing, an alternate embodiment uses a woven fabric, rather than a tufted fabric, with the same benefits. Specifically, an effect yarn as described above is interwoven with a background yarn as described above. After the two yarns are interwoven, they are overdyed with a disperse dye. The yarns may be single or multi-ply, and may be of any shape known in the art. The yarns may be woven using any technique known in the art. Following the formation of the woven fabric, they may be used to prepare a carpet in the same manner as the tufted fabric described above, including via application of a primary and/or secondary backcoating.
- Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of this disclosure. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (21)
1. A carpet comprising pile, said pile comprising a first yarn and a second yarn, said pile being tufted into a primary backing;
wherein said first yarn comprises sulfonated entities and a cationically-dyeable polyester yarn; and
wherein said second yarn comprises a polymer selected from the group consisting of a polyester and a polyamide.
2.-31. (canceled)
32. The carpet of claim 1 , wherein said first yarn has been dyed with a basic dye; and wherein said second yarn has been dyed with a second dye, or is undyed.
33. The carpet of claim 32 , wherein said carpet has been overdyed with a disperse dye.
34. The carpet of claim 33 , wherein said first yarn has been space dyed.
35. The carpet of claim 34 , wherein said first yarn comprises cationically-dyeable polyethylene terephthalate (PET) or cationically-dyeable polytrimethylene terephthalate (PTT).
36. The carpet of claim 35 , wherein said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight.
37. The carpet of claim 36 , having at least one additional cationically-dyeable polyester yarn.
38. The carpet of claim 37 , having at least one additional polyester or polyamide yarn.
39. The carpet of claim 38 , wherein said first yarn is comprised of bulked continuous filaments.
40. A carpet comprising a woven facecloth, said woven facecloth comprising a first yarn and a second yarn, said first yarn being interwoven with said second yarn;
wherein said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight and a cationically-dyeable polyester yarn;
wherein said second yarn comprises a polyamide; and wherein said carpet has been overdyed with an acid dye.
41. The carpet of claim 40 , wherein said first yarn has been space-dyed.
42. The carpet of claim 41 , wherein said first yarn comprises cationically-dyeable polyethylene terephthalate (PET) or cationically-dyeable polytrimethylene terephthalate (PTT).
43. The carpet of claim 42 , wherein at least one of said first yarn and said second yarn comprises continuous filaments.
44. The carpet of claim 43 , wherein said continuous filaments are bulked continuous filaments.
45. The carpet of claim 44 , having at least one additional cationically-dyeable polyester yarn.
46. The carpet of claim 45 , having at least one additional polyamide yarn.
47. A woven fabric comprising a first yarn interwoven with a second yarn;
wherein said first yarn comprises sulfur in a concentration of at least 1000 ppm by weight and a cationically-dyeable polyester yarn which has been dyed with a basic dye prior to being interwoven with the second yarn; and
wherein said second yarn comprises a polymer selected from the group consisting of a polyester and a polyamide, and is undyed, or dyed with a different dye, prior to being interwoven with the first yarn.
48. The woven fabric of claim 47 , wherein said second yarn comprises a polyester, and said fabric has been overdyed with a disperse dye.
49. The woven fabric of claim 47 , wherein said second yarn comprises a polyamide, and said fabric has been overdyed with a disperse dye or an acid dye.
50. A carpet comprising the woven fabric of claim 48 .
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PCT/US2021/060989 WO2022119770A2 (en) | 2020-12-02 | 2021-11-29 | Multicolor polyester fabric and methods of manufacturing same |
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US20170282497A1 (en) * | 2016-03-29 | 2017-10-05 | Milliken & Company | Surface and Edge Attachment for Installation of Multi-Component Floor Mat |
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