US20040172984A1 - Knitted fabric having an excellent wash fastness and light fastness, and a process of preparing for the same - Google Patents

Knitted fabric having an excellent wash fastness and light fastness, and a process of preparing for the same Download PDF

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Publication number
US20040172984A1
US20040172984A1 US10/475,680 US47568003A US2004172984A1 US 20040172984 A1 US20040172984 A1 US 20040172984A1 US 47568003 A US47568003 A US 47568003A US 2004172984 A1 US2004172984 A1 US 2004172984A1
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United States
Prior art keywords
yarn
knitted fabric
component
denier
knit fabric
Prior art date
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Abandoned
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US10/475,680
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English (en)
Inventor
Sang-Woo Jung
Jae-Hoon Jung
Joon-Young Yoon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kolon Industries Inc
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Kolon Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR10-2001-0022595A external-priority patent/KR100375245B1/ko
Priority claimed from KR10-2001-0022597A external-priority patent/KR100375247B1/ko
Priority claimed from KR1020010022594A external-priority patent/KR100362031B1/ko
Application filed by Kolon Industries Inc filed Critical Kolon Industries Inc
Assigned to KOLON INDUSTRIES, INC. reassignment KOLON INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JUNG, JAE-HOON, JUNG, SANG-WOO, YOON, JOON-YOUNG
Publication of US20040172984A1 publication Critical patent/US20040172984A1/en
Abandoned legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B21/00Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00Details of fabric structure established in the fabric forming process
    • D10B2403/01Surface features
    • D10B2403/011Dissimilar front and back faces
    • D10B2403/0111One hairy surface, e.g. napped or raised
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00Details of fabric structure established in the fabric forming process
    • D10B2403/01Surface features
    • D10B2403/011Dissimilar front and back faces
    • D10B2403/0114Dissimilar front and back faces with one or more yarns appearing predominantly on one face, e.g. plated or paralleled yarns

Definitions

  • the present invention relates to a knitted fabric having excellent wash fastness and light fastness, and a process of preparing for the knitted fabric.
  • a process of preparing ultra fine denier fiber is divided into three processes: a direct spinning process; a bicomponent division type spinning process; and a bicomponent dissolution type spinning process.
  • a direct spinning process it is possible to prepare ultra fine denier fiber of 0.3 ⁇ 0.5 denier.
  • the bicomponent division type spinning process it is possible to prepare ultra fine denier fiber of 0.2 denier.
  • the bicomponent dissolution type spinning process it is possible to prepare ultra fine denier fiber of 0.001 denier or below.
  • the ultra fine denier fiber of 0.2 denier prepared by means of the bicomponent division type conjugate spinning process consisting of nylon/polyester is applied to a warp knit
  • warping property, knitting property and raising property of the warp knit are very poor since the nylon is seperated from the polyester by means of the tension and friction in warping and knitting because the nylon and the polyester are incompatible with each other.
  • appearance of the prepared warp knit is very poor due to non-uniformity of raised fibers.
  • the nylon and the polyester are mixed, the warp knit is difficult to dyestuffs and also its color fastness is low.
  • a warp knit is prepared by the sea-island type conjugate fiber of 0.001 ⁇ 0.3 denier prepared by using alkali easy soluble copolymerized polyester as a sea component and regular polyester as an island component by means of the bicomponent dissolution type spinning process, warping property, raising property and knitting property of the warp knit are good; however, the wash fastness and light fastness of the warp knit are low due to poor dyeing property which is characteristic of the polyester (island component).
  • a knitted fabric having excellent wash fastness and light fastness which may omit a dyeing process by knitting a knitted fabric using a sea-island type conjugate fiber, which contains a dope dyed component as a fiber forming component, as a face yarn and/or back yarn and then dissolving a sea component of the sea-island type conjugate fiber when producing a warp knit fabric or circular knit fabric.
  • the present invention provides a knitted fabric having excellent wash fastness and light fastness, and a process of preparing for the same, which has excellent processability such as warping and knitting processability.
  • the present invention provides a knitted fabric having excellent wash fastness and light fastness, which comprises a ultra fine yarn including a dope dyed component selected from the group, consisting of carbon black, pigments and dyestuffs on the face and/or back, wherein the knitted fabric has the wash fastness of more then 2 ⁇ 3 and the light fastness of more than level 5.
  • the present invention provides a process of preparing a knitted fabric having excellent wash fastness and light fastness, wherein a sea-island type conjugate fiber consisting of a fiber forming component, which contains 0.1 ⁇ 15% by weight of dope dyed component selected from the group consisting of carbon black, pigments and dyestuffs, and a dissolution component, which is a easy soluble polymer, is used as face yarn and/or back yarn.
  • a sea-island type conjugate fiber consisting of a fiber forming component, which contains 0.1 ⁇ 15% by weight of dope dyed component selected from the group consisting of carbon black, pigments and dyestuffs, and a dissolution component, which is a easy soluble polymer, is used as face yarn and/or back yarn.
  • the knitted fabric of the present invention includes both warp knit fabric and weft knit fabric.
  • the knitted fabric of the present invention has a ultra fine yarn including a dope dyed component selected from the group consisting of carbon black, pigments and dyestuffs on the face and/or back.
  • the above ultra fine yarn is formed by knitting a knitted fabric using a bicomponent dissolution type conjugate fiber, which has polyester containing a dope dyed component as a fiber forming component and easy soluble polymer as a dissolution component, as a face yarn and/or back yarn, and then dissolving the dissolution component in the subsequent process.
  • the knitted fabric becomes ultra-fine after knitting and raising it using the bicomponent dissolution type conjugate fiber as a face yarn and/or back yarn, and then dissolving the dissolution component.
  • the easy soluble polymer copolymerized polyester with very excellent alkali dissolubility is most preferably used.
  • the blended composition consisting of (i) copolymerized polyester formed by the copolymerization of an ester unit of ethylene terephthalic acid as a main component, with an ester unit containing metal sulfonates and (ii) a polyethyleneglycol having a number average molecular weight of more than 8,000 is used as the easy soluble polymer.
  • water-easy soluble polyvinyl alcohol or polystyrene or the like may be used as the easy soluble polymer.
  • the polystyrene is disadvantageous in that the solvent used in dissolution causes environmental contamination.
  • a dope dyed component is added in the fiber forming component in order to improve wash fastness and light fastness of the knitted fabric.
  • the dope dyed component more than one component is used from the group consisting of carbon black, pigments and dyestuffs. If the carbon black is solely used, the ultra fine yarn (island component) has a black color. In case that the ultra fine yarn is desired to have other colors different from black, types of pigments or dyestuffs should be properly selected.
  • the dyestuffs include solvent dyestuffs (Eastwelt Co., Ltd.) such as Papilion Yellow S-4G, Papilion Red S-G, Papilion Blue S-GL, etc.
  • the pigments include BASF Corporation products such as Heliogen Blue D 7030, Paliogen Red L 3885, Paliotol Yellow D 1819 Heliogen, etc.
  • a desired color can be obtained.
  • the content of carbon black in the island component is adjusted to be less than 5% by weight, a knitted fabric with grey color can be produced.
  • the dope dyed components include pigments of black color or dyestuffs of black color.
  • the dope dyed component content is 0.1 ⁇ 15% by weight with respect to the weight of the fiber forming component (ultra fine yarn). If the dope dyed component content is less than 0.1% by weight, the improvement effect of wash fastness and light fastness is small, or if it is more than 15% by weight, the spinnability is decreased.
  • the knitted fabric of the present invention includes a warp knit fabric which consists of a face weave made of a ultra fine yarn including a dope dyed component and a back weave made of a high shrinkage yarn or synthetic fiber yarn, or which may have an intermediate weave made of a spandex elastic yarn between the face weave and the back weave.
  • the mono-filament fineness of the face weave yarn is 0.001 ⁇ 0.3 denier. If the mono-filament fineness is more than 0.3 denier, the raising property and the durability of raised fiber are improved but the feeling of touch may become hard and a wirting effect may be decreased. If it is less than 0.001 denier, the softness can be increased but raised fiber easily fall out or are tangled due to friction, thus making the appearance poor.
  • the high shrinkage yarn and synthetic fiber yarn (hereinafter, “back yarn”) includes polyester filaments.
  • the dope dyed component can be contained in 0.1 ⁇ 15% by weight of the back yarn.
  • the mono-filament fineness of the back yarn is 1 ⁇ 5 denier. If the mono-filament fineness is less than 1 denier, it may be difficult to give proper repulsiveness to the warp knit fabric (finished fabric). If the mono-filament denier is more than 5 denier, processability such as warping and knitting processability can be worse, or the repulsiveness of the warp knit fabric becomes too large, for thereby making it difficult to exhibit softness of the face.
  • the high shrinkage yarn includes copolymerized polyester.
  • the copolymer component bisphenol-A, polyethylene glycol, isophthalic acid and the like can be used.
  • the copolymer component of the present invention is not limited thereto.
  • the fiber density of the face weave can be much increased by the shrinkage of the intermediate weave. Since the spandex elastic yarn, which is the intermediate yarn, has a good elastic property, it increases the fiber density of the face weave of a finally finished fabric, thus improving the softness of the warp knit fabric and giving good elasticity and repulsiveness to the warp knit fabric.
  • the total denier of spande) is preferably 30 ⁇ 90 denier.
  • the face yarn content is preferably 40 ⁇ 87% by weight with respect to the total weight of a finished warp knit fabric. If it is less than 40% by weight, there is the risk of the warp knit fabric's softness being poor. If it is more than 87% by weight, the intermediate yarn content and the back yarn content become relatively low, thus drapery and mechanical physical properties become worse.
  • the intermediate yarn content and the back yarn content are preferably 0 ⁇ 20% and 13 ⁇ 60% respectively by weight with respect to the total weight of the finished warp knit fabric. If it is over the above range, the softness of the warp knit fabric may be decreased. If it is under the above range, the shape stability and the drape property may be decreased.
  • the finished warp knit fabric is produced by raising, preheating, weight-reducing (removal of a dissolution component), buffing and finally heating the thusly knit fabric.
  • the present invention may omit a dyeing process because the ultra fine yarn contains the dope dyed component.
  • an additional dyeing process may be carried out.
  • the concentration of dyestuffs used is preferably less than 3% o.w.f.
  • the density of the finished warp knit fabric is preferably 40 ⁇ 60 loop/inch.
  • the warp knit fabric of the present invention has very excellent wash fastness and light fastness because the face yarn or both of the face yarn and the back yarn contain a black dope dyed component. More particularly, to get a desired color, no dyeing process is required, or, if any, only an additional dyeing process using 3.0% o.w.f of dyestuffs (based on a powdery dyestuffs) is required. Of course, even if the additional dyeing using more than 3.0% o.w.f of dyestuffs is required, this will be achieved only by increasing the dope dyed component content in the island component.
  • the additional dyeing is carried out mostly for the purpose of varying the color of the warp knit fabric into another color using a given dope dyed fiber as a base.
  • the reason why the amount of dyestuffs used in the additional dyeing is limited to 3.0% o.w.f. of a powdery dyestuffs is because, if the amount of dyestuffs is more than the above value, the wash fastness and the light fastness are sharply decreased.
  • the wash fastness and the light fastness are in inverse proportion to an amount of dyestuffs used.
  • the specific surface area is much higher than that of a general yarn, so its fastness is inevitably low.
  • a liquid dyestuffs whose concentration is 50% or so which is lower than that of a powdery dyestuffs, up to 6.0% o.w.f. can be used.
  • the range of fastness of the dope dyed fiber to be achieved by the present invention is more than level 2 ⁇ 3 in wash fastness and more than level 5.0 in light fastness.
  • the warp knit fabric of the present invention has excellent processability such as warping and knitting properties because the face yarn is a bicomponent dissolution type yarn.
  • the warp knit fabric can exhibit excellent writing effect and softness.
  • the warp knit fabric of the present invention can solve the problem that the feeling of touch becomes too soft when producing a warp knit fabric using a conventional bicomponent dissolution type yarn, because the back yarn is a thick-denier yarn with a proper denier. Moreover, it can exhibit excellent drapery. Particularly, in case that the intermediate weave is formed of a spandex elastic yarn with good elastic processability and the back weave is formed of a high shrinkage yarn, the density of the ultra fine yarn of the face weave becomes much higher and thereby the elongation recovery and softness of the warp knit fabric in the wale direction and course direction become more excellent.
  • the knitted fabric of the present invention also includes a weft knit fabric, which is composed of a ultra fine yarn including a dope dyed component or mixed filament yarn of the ultra fine yarn and a high shrinkage yarn at the face and/or back.
  • the boiling water shrinkage of a high shrinkage yarn used in producing the air textured filament yarn is preferably more than 15% in order to improve the softness of a final product.
  • polyester filaments and the like can be used as a specific example of the high shrinkage yarn.
  • the ultra fine yarn or a mixed filament yarn thereof is used for any one of the face and back, it is preferable to use a thick-denier yarn of polyester filaments as the yarn of the other side.
  • the dope dyed component can be contained in 0.1 ⁇ 15% by weight of thick-denier yarn.
  • the mono-filament denier of the thick-denier yarn is 0.5 ⁇ 5 denier. If the mono-filament denier is less than 0.5 denier, it may be difficult to give proper repulsiveness to the circular knit fabric. If the mono-filament denier is more than 5 denier, processability such as warping and knitting processability can be worse, or the repulsiveness of the weft knit fabric becomes too large, for thereby making it difficult to exhibit softness of the face.
  • a sea-island type conjugate fiber consisting of a fiber forming component, which contains 0.1 ⁇ 15% by weight of dope dyed component selected from the group consisting of carbon black, pigments and dyestuffs, and a dissolution component, which is a easy soluble polymer, is used, or a mixed filament yarn of the sea-island type conjugate fiber and a high shrinkage yarn is used, thus knitting the weft knit fabric in a circular knitting machine.
  • the dissolution component (sea component) in the sea-island type conjugate fiber is dissolved to thus achieve a ultra-fine filament.
  • the circular knit fabric of the present invention contains the dope dyed component in the ultra-fine filament, so the dyeing process can be omitted.
  • an additional dyeing can be performed in order to adjust the color of the circular knit fabric.
  • an additional dyeing can be performed in order to adjust the color of the ultra-fine denier fabric. In the additional dyeing process, a sufficiently deep color can be obtained even at a concentration of dyestuffs less than 5%, and thusly the amount of the dyestuffs to be used can be reduced.
  • the ultra-fine filament or the mixture yarn of ultra-fine yarn and thick-denier yarn, which constitute the circular knit fabric of the present invention contain a black dope dyed component, and thus their wash fastness and light fastness are very excellent. More particularly, the wash fastness is more than Level 2 ⁇ 3, and the light fastness is more than level 5. Furthermore, the knitted fabric of the present invention has an excellent processability since it is knitted in the sea-island type conjugate fiber state, and at the same time it can achieve a good softness since yarn in the knitted fabric becomes ultra-fine as the dissolution component is dissolved in the subsequent process.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn, a spandex elastic yarn of 40 denier/5 filaments is used as the intermediate yarn and a polyester multi-filament (dope dyed yarn) of 50 denier/24 filaments containing 3% by weight of carbon black is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 4% by weight of carbon black as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • a dissolution type conjugate fiber dope dye
  • the weight ratio of face yarn:intermediate yarn:back yarn is set to 55% by weight:10% by weight:35% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98C, buffed and finally set at 180° C., thus producing a finished warp knit fabric. At this time, no dyeing is preformed.
  • Table 1 The results of evaluation of the quality processability of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn, a spandex elastic yarn of 40 denier/5 filaments is used as the intermediate yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 3% by weight of carbon black as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • a dissolution type conjugate fiber dope dyed yarn
  • the weight ratio of face yarn: intermediate yarn: back yarn is set to 55% by weight: 10% by weight: 35% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 2% o.w.s and a temperature of 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric thus dyed are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn, a spandex elastic yarn of 40 denier/5 filaments is used as the intermediate yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 5% by weight of Papilion Yellow S-4G (products by Eastwell Co., Ltd.), which is a solvent dyestuffs, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mote % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.
  • the weight ratio of face yarn: intermediate yarn:back yarn is set to 55% by weight: 10% by weight: 35% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98C, buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn, a spandex elastic yarn of 40 denier/5 filaments is used as the intermediate yarn and a high shrinkage polyester yarn (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 4% by weight of Heliogen Blue D 7030 (products by BASF.), which is a pigment, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn: intermediate yarn:back yarn is set to 55% by weight: 10% by weight: 35% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn and a polyester multi-filament (dope dyed yarn) of 50 denier/24 filaments containing 3% by weight of carbon black is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 4% by weight of carbon black as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn:back yarn is set to 45% by weight: 55% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric. At this time, no dyeing process is performed.
  • Table 1 The results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 3% by weight of carbon black as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn: back yarn is set to 45% by weight: 55% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric thus dyed are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 5% by weight of Papilion Yellow S-4G (products by EastwelL Co., Ltd.), which is a solvent dyestuffs, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn: back yarn is set to 45% by weight: 55% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 loops/cm is produced, wherein a dissolution type conjugate fiber (dope dyed yarn) is used as the face yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthatate containing 4% by weight of Heliogen Blue D 7030 (products by BASF.), which is a pigment, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn:back yarn is set to 45% by weight: 55% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 Loops/cm is produced, wherein a dissolution type conjugate fiber (non-dope dyed yarn) is used as the face yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • the weight ratio of face yarn: back yarn is set to 45% by weight: 55% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • the results of evaluation of the quality properties of the finished warp knit fabric are indicated in Table 1.
  • a warp knit fabric with a density of 23 Loops/cm is produced, wherein a dissolution type conjugate fiber (non-dope dyed yarn) is used as the face yarn, a spandex elastic yarn of 40 denier/5 filaments is used as the intermediate yarn and a polyester multi-filament (non-dope dyed yarn) of 50 denier/24 filaments is used as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethleneglycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthatate as a dissolution component, and having a fiber forming component denier of 0.07 after dissolving the dissolution component.
  • a dissolution type conjugate fiber non-dope dyed yarn
  • the weight ratio of face yarn:intermediate yarn:back yarn is set to 55% by weight: 10% by weight:35% by weight.
  • the produced warp knit fabric is raised to be shrunken by 50%, then preset, and weight-reduced for 40 minutes in a NaOH solution having a concentration of 1% o.w.s 98° C., buffed and finally set at 180° C., thus producing a finished warp knit fabric.
  • a circular knit fabric is knitted on an interlock circular knitting machine with 18 dial gauges-4 races, wherein a mixed filament yarn made of a dissolution type conjugate fiber (dope dyed yarn) of 150 denier/48 filaments and a high shrinkage polyester yarn of 30 denier/12 filaments having a boiling water shrinkage rate of 18% is fed as the face yarn and a polyester filament (dope dyed yarn) of 50 denier/24 filaments containing 3% by weight of carbon black is fed as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 3% by weight of carbon black as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mote % of polyethylene terephthatate as a dissolution component, and having a fiber forming component denier of 0.06 after
  • the knitted circular knit fabric is treated in a NaOH solution having a concentration of 1% o.w.s 98° C. and is raised, thus producing a finished circular knit fabric. At this time, no dyeing process is performed.
  • the results of evaluation of the quality propeties of the finished circular knit fabric are indicated in Table 2.
  • a black disperse dyestuffs (1.0% o.w.f. concentration)
  • a circular knit fabric is knitted on an interlock circular knitting machine with 18 dial gauges-4 races, wherein a mixed filament yarn made of a dissolution type conjugate fiber (dope dyed yarn) of 150 denier/48 filaments and a high shrinkage polyester yarn of 30 denier/12 filaments having a boiling water shrinkage of 18% is fed as the face yarn and a polyester filament (non-dope dyed yarn) of 50 denier/24 filaments is fed as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 5% by weight of Papition Yellow S-4G (products by Eastwell Co., Ltd.), which is a solvent dyestuffs, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mote % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphatate, 5 mote % of isophthalic acid and 85 mole % of polyethylene terephthalate as
  • the knitted circular knit fabric is treated in a NaOH solution having a concentration of 1% o.w.s 98° C. and is raised, thus producing a finished circular knit fabric.
  • the results of evaluation of the quality properties of the finished circular knit fabric are indicated in Table 2.
  • a circular knit fabric is knitted on an interlock circular knitting machine with 18 dial gauges-4 races, wherein a dissolution type conjugate fiber (dope dyed yarn) of 150 denier/48 filaments is fed as the face yarn and a polyester filament (non-dope dyed yarn) of 50 denier/24 filaments is fed as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate containing 4% by weight of Heliogen Blue D 7030 (products by BASF.), which is a pigment, as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthalic acid and 85 mole % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.06 after dissolving the dissolution component.
  • the knitted circular knit fabric is treated in a NaOH solution having a concentration of 1% o.w.s 98° C. and is raised, thus producing a finished circular knit fabric.
  • the results of evaluation of the quality properties of the finished circular knit fabric are indicated in Table 2.
  • a circular knit fabric is knitted on an interlock circular knitting machine with 18 dial gauges-4 races, wherein an air textured filament yarn made of a dissolution type conjugate fiber (non-dope dyed yarn) of 150 denier/48 filaments and a high shrinkage polyester yarn of 30 denier/12 filaments having a boiling water shrinkage of 18% is fed as the face yarn and a polyester filament (non-dope dyed yarn) of 50 denier/24 filaments is fed as the back yarn, the dissolution type conjugate fiber consisting of polyethylene terephthalate as a fiber forming component and alkali easy soluble copolymerized polyester composed of 5 mole % of polyethylene glycol, 5 mole % of dimethyl-5-sulfoisothphalate, 5 mole % of isophthatic acid and 85 mote % of polyethylene terephthalate as a dissolution component, and having a fiber forming component denier of 0.06 after dissolving the dissolution component.
  • a black disperse dyestuffs (12.5% o.w.f. concentration
  • Warping processability is evaluated by checking the stop times/hour of warping machine due to yarn defect at a warping speed of 500 m/min. if the stop times/hour is naught, it is excellent ( ⁇ ). If the stop times/hour is one or two, it is ordinary ( ⁇ ). If the stop times/hour is more than 3 times, it is poor (x). The stop times/hour of warping machine is calculated by dividing the total stop times of warping machine in warping the yarn of 9 kg into total warping time.
  • Knitting processability is evaluated by checking the stop times/hour of knitting machine due to yarn defect at knitting speed of 1000 m/min. If the stop times/hour is naught, it is excellent ( ⁇ ). If the stop times/hour is one or two, it is ordinary ( ⁇ ). If the stop times/hour is more than 3 times, it is poor (x). The stop times/hour of knitting machine is calculated by dividing the total stop times of knitting machine in a day into 24 hour.
  • a sample fiber is prepared and the original Length (l 0 ) is measured. Then, the sample fiber is treated in boiling water of 100° C. for 15 minutes. Then, the sample length (l 1 ) is measured under a load of 0.15 g/d.
  • the knitted fabric according to the present invention may not be dyed and has excellent wash fastness and light fastness since the ultra fine yarn constituting the knitted fabric contains the dope dyed component. Furthermore, the knitted fabric is warped and knitted using a sea-island type conjugate fiber, the processability is good and the touch and repulsiveness are excellent because the knitted fabric becomes ultra-fine after dissolving the sea component. As the result, the knitted fabric of the present invention is useful for materials of artificial leathers or ladies clothes.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
US10/475,680 2001-04-26 2002-04-26 Knitted fabric having an excellent wash fastness and light fastness, and a process of preparing for the same Abandoned US20040172984A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR10-2001-0022595A KR100375245B1 (ko) 2001-04-26 2001-04-26 세탁 및 일광견뢰도가 우수한 경편지 및 그의 제조방법
KR2001/22597 2001-04-26
KR10-2001-0022597A KR100375247B1 (ko) 2001-04-26 2001-04-26 세탁 및 일광견뢰도가 우수한 환편지
KR2001/22595 2001-04-26
KR2001/22594 2001-04-26
KR1020010022594A KR100362031B1 (ko) 2001-04-26 2001-04-26 세탁 및 일광견뢰도가 우수한 경편지 및 그의 제조방법
PCT/KR2002/000776 WO2002088446A1 (fr) 2001-04-26 2002-04-26 Tricot presentant une resistance au lavage et une solidite a la lumiere excellentes, et procede de production dudit tricot

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US (1) US20040172984A1 (fr)
EP (1) EP1381724A4 (fr)
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US20040171319A1 (en) * 2001-04-26 2004-09-02 Joon-Young Yoon Fabric of ultra fine yarn with excellent wash fastness and sunlight fastness
US20060046055A1 (en) * 2004-08-30 2006-03-02 Nan Ya Plastics Corporation Superfine fiber containing grey dope dyed component and the fabric made of the same
US20100151756A1 (en) * 2008-12-11 2010-06-17 Woongjin Chemical Co., Ltd. Fabric for screen including dope dyed fiber
US20140166548A1 (en) * 2011-06-07 2014-06-19 Gessner Ag Textile substrate of multiple different disposable and/or recyclable materials, use of such a textile substrate and method for processing such a textile substrate
CN113584888A (zh) * 2021-07-02 2021-11-02 武汉纺织大学 光热转换可变色织物及其制备方法

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WO2007074833A1 (fr) * 2005-12-26 2007-07-05 Mitsubishi Rayon Co., Ltd. Tissu composé de régions différentes en matière d’extensibilité et son processus de fabrication
WO2013150528A2 (fr) * 2012-04-04 2013-10-10 Argaman Technologies Ltd. Système de fils à combinaison de composants multiples permettant une gestion d'humidité dans des textiles et système de production associé
CN105506851A (zh) * 2014-09-24 2016-04-20 东丽纤维研究所(中国)有限公司 一种低弹经编面料及其用途
KR20190015887A (ko) * 2017-08-07 2019-02-15 현대자동차주식회사 인공피혁 및 그 제조 방법
CN111065774A (zh) * 2017-08-30 2020-04-24 丝芭博株式会社 高密度针织物和高密度针织物的制造方法

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US20040171319A1 (en) * 2001-04-26 2004-09-02 Joon-Young Yoon Fabric of ultra fine yarn with excellent wash fastness and sunlight fastness
US20060046055A1 (en) * 2004-08-30 2006-03-02 Nan Ya Plastics Corporation Superfine fiber containing grey dope dyed component and the fabric made of the same
US20100151756A1 (en) * 2008-12-11 2010-06-17 Woongjin Chemical Co., Ltd. Fabric for screen including dope dyed fiber
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US9683318B2 (en) * 2011-06-07 2017-06-20 Climatex Ag Textile substrate of multiple different disposable and/or recyclable materials, use of such a textile substrate and method for processing such a textile substrate
CN113584888A (zh) * 2021-07-02 2021-11-02 武汉纺织大学 光热转换可变色织物及其制备方法

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EP1381724A1 (fr) 2004-01-21

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