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WO2020045769A1 - Fibre élastique de polyuréthane-urée ayant une aptitude à la teinture améliorée et son procédé de fabrication - Google Patents

Fibre élastique de polyuréthane-urée ayant une aptitude à la teinture améliorée et son procédé de fabrication Download PDF

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Publication number
WO2020045769A1
WO2020045769A1 PCT/KR2019/000208 KR2019000208W WO2020045769A1 WO 2020045769 A1 WO2020045769 A1 WO 2020045769A1 KR 2019000208 W KR2019000208 W KR 2019000208W WO 2020045769 A1 WO2020045769 A1 WO 2020045769A1
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WO
WIPO (PCT)
Prior art keywords
polyol
elastic yarn
polyethylene glycol
polyurethane
molecular weight
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.)
Ceased
Application number
PCT/KR2019/000208
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English (en)
Korean (ko)
Inventor
김태헌
조주현
강지영
강연수
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.)
Hyosung TNC Corp
Original Assignee
Hyosung TNC Corp
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
Application filed by Hyosung TNC Corp filed Critical Hyosung TNC Corp
Publication of WO2020045769A1 publication Critical patent/WO2020045769A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • 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
    • 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
    • D06P3/248—Polyamides; Polyurethanes using reactive dyes
    • 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
    • D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/14—Dyeability

Definitions

  • the present invention relates to a polyurethaneurea elastic yarn with improved dyeability, and more particularly, when the polyurethaneurea elastic yarn is knitted with a counterpart yarn such as nylon and cotton, a reaction site that can be combined with a dye in the spandex due to the hydrophobic property of the spandex. Even if there is a dye is difficult to approach the polyurethane urea elastic yarn solved the problem of not showing a satisfactory dyeability.
  • Polyurethane fibers having elastic properties are widely used in the textile industry.
  • 'Spandex' fiber is used as a general term for such an elastic fiber, and usually refers to a synthetic fiber having a polyurethane bond of 85% or more of the structure forming the fiber.
  • Such polyurethane fibers generally react with a polyol which is a high molecular weight diol compound and an excess of diisocyanate compound to obtain a prepolymer having an isocyanate group at both ends of the polyol and the prepolymer in an appropriate solvent. After dissolution, the solution is prepared by a secondary polymerization reaction in which a diamine-based or diol-based chain extender is added and reacted.
  • Polyurethane fibers may be used in combination with various other fibers such as acrylic, wool, cotton, silk, etc., depending on the application, and have been commonly used for the purpose of requiring elasticity such as underwear, swimwear, and stockings.
  • polyurethane fibers Due to the inherent characteristics of such elasticity, polyurethane fibers are actively used for various purposes, and as the use thereof is expanded, new additional properties are continuously required for existing polyurethane fibers.
  • a number of polyurethane fibers which have been further strengthened in heat resistance and elastic recovery, have been developed, and in recent years, there is an increasing demand for polyurethane fibers having high heat setability and polyurethane fibers having improved dyeability.
  • Polyurethane fibers generally have a problem of poor dyeing, and a general technique for improving dyeing of acid dyes is 1) a method of introducing a tertiary nitrogen atom into a polyurethane polymer chain (Japanese Patent Publication No. 62 -23097), 2) A method of introducing a salt of an organic or inorganic acid and a tertiary amine into a polyurethane polymer chain (Japanese Patent Publication No. 50-17520), 3) A tertiary or A method of introducing a quaternary nitrogen atom (Japanese Patent Publication No. 44-16386), and 4) a method of using a low molecular diamine as a chain extender (Japanese Patent Publication No. 59-108021).
  • Method 1) and Method 2) tend to become gels during the reaction, and Method 3) has a problem that it is difficult to control the amount of nitrogen atoms introduced.
  • method 4) using a low molecular weight diamine as a chain extender may improve dyeing property, but has a problem of lowering softness and elasticity.
  • Korean Patent Publication Nos. 10-2009-0118997 and 10-2005-0070652 disclose dyeing properties by dyeing with a specific blue acid dye containing a polymer having a maleimide structure composed of maleimide units or by adding a talc compound. To improve, but there was a limit to sufficiently improve the dyeability of the polyurethane.
  • the dye when the polyurethane urea elastic yarn yarn is knitted with a fabric together with the other nylon, cotton, etc., the dye is made through a chemical bond between the dye and the fiber, polyurethane polyurethane due to the hydrophobic characteristics Even if the urea elastic yarn has a reaction site that can be combined with the dye, it is a problem to provide a polyurethane urea elastic yarn with improved dyeability that can solve the problem that the dye is difficult to access due to the problem of not showing satisfactory dyeability.
  • Polyurethane urea elastic yarn with improved dyeability of the present invention (a) a polyol comprising a first polyol and a second polyol; (b) at least one diisocyanate; (c) at least one diamine chain extender; And (d) a product obtained by reacting at least one amine chain terminator, wherein the second polyol is polyethylene glycol, the first polyol and the second polyol are different materials, and the weight of polyethylene glycol The average molecular weight is characterized in that 500 to 4000.
  • polyethylene glycol is characterized by mixing 5.0 to 30.0 mol% relative to the total polyol.
  • the amine terminal number of the polyurethane urea elastic yarn is characterized in that 20.0 to 45.0 meq / kg.
  • the method for preparing a polyurethaneurea elastic yarn having improved dyeability of the present invention comprises the steps of: (a) preparing a polyurethane prepolymer by contacting a polyol comprising a first polyol and a second polyol with at least one diisocyanate; (b) adding a solvent to the prepolymer of step (a); (c) contacting the product of step (b) with at least one diamine chain extender and at least one amine chain terminator; (d) spinning the product of step (c) to produce a polyurethaneurea elastic yarn, wherein the second polyol is polyethylene glycol, the first polyol and the second polyol are different materials, and The weight average molecular weight is characterized in that 500 to 4000.
  • the second polyol is characterized in that the mixture of 5.0 to 30.0 mol% relative to the total polyol.
  • the amine terminal number of the polyurethane urea elastic yarn is characterized in that 20.0 to 45.0 meq / kg.
  • the present invention can improve the dyeability of the acidic and reactive dyes of polyurethaneurea elastic yarn by improving the hydrophilicity of the polyurethaneurea elastic yarn to improve the dyeing, deepening of the fabric containing spandex and grin-through ( Fabric stretch (stretch) when the spandex is not dyed dyeing phenomenon that can prevent the appearance).
  • the present invention (a) a polyol comprising a first polyol and a second polyol; (b) at least one diisocyanate; (c) at least one diamine chain extender; And (d) a product obtained by reacting at least one amine chain terminator, wherein the second polyol is polyethylene glycol, the first polyol and the second polyol are different materials, and the weight of polyethylene glycol
  • the average molecular weight relates to polyurethaneurea elastic yarns with improved dyeability to acid dyes and reactive dyes of 500 to 4000.
  • the present invention comprises the steps of (a) contacting a polyol comprising a first polyol and a second polyol with at least one diisocyanate to prepare a polyurethane prepolymer; (b) adding a solvent to the prepolymer of step (a); (c) contacting the product of step (b) with at least one diamine chain extender and at least one amine chain terminator; (d) spinning the product of step (c) to produce a polyurethaneurea elastic yarn, wherein the second polyol is polyethylene glycol, the first polyol and the second polyol are different materials, and
  • the weight average molecular weight relates to a method for producing a polyurethaneurea elastic yarn improved dyeing properties for acid dyes and reactive dyes, characterized in that 500 to 4000.
  • the polyol includes a first polyol and a second polyol. That is, the first polyol and the second polyol are mixed and used as a polyol, and the first polyol and the second polyol are different materials.
  • the first polyol may be polytetramethylene ether glycol, polypropylene glycol, polycarbonate diol, or the like.
  • the second polyol is polyethylene glycol.
  • Polyethyleneglycol has excellent hydrophilicity, so that the mixed application at the stage of preparing the polyurethane prepolymer improves the hydrophilicity of the polyurethaneurea elastic yarn, thereby improving the accessibility of the acid dye and the reactive dye to the polyurethaneurea elastic yarn, It is possible to improve the dyeability of polyurethaneurea elastic yarns for dyes and reactive dyes.
  • the polyethylene glycol is preferably mixed 5.0 to 30.0 mol% relative to the total polyol.
  • polyethylene glycol is applied at less than 5.0 mol%, it is difficult to expect hydrophilicity improvement effect, and when it is applied at more than 30.0 mol%, it is difficult to apply the process due to poor spinning workability and lower yarn properties due to lower heat resistance. .
  • diisocyanate 4,4'-diphenylmethane diisocyanate, hexamethylene diisocyanate, toluene diisocyanate, butylene diisocyanate, hydrogenated P, P-methylene diisocyanate and the like can be used.
  • diisocyanate 4,4'-diphenylmethane diisocyanate, hexamethylene diisocyanate, toluene diisocyanate, butylene diisocyanate, hydrogenated P, P-methylene diisocyanate and the like can be used. The above can be used.
  • the polyol and diisocyanate are contacted to prepare a polyurethane prepolymer, to which a solvent is added.
  • the solvent is preferably dimethylacetamide.
  • the polyurethaneurea solution is prepared by contact with at least one chain extender and at least one chain terminator.
  • Polyurethane urea elastic yarn is prepared through a fiber spinning process such as dry spinning or melt spinning of the prepared product polyurethaneurea solution.
  • the chain extender is at least one diamine.
  • diamines that can be used include hydrazine, ethylene diamine, 1,2-propanediamine, 1,3-propanediamine, 1,2-butanediamine (1,2-diaminobutane), 1,3-butanediamine (1,3 -Diaminobutane), 1,4-butanediamine (1,4-diaminobutane), 1,3-diamino-2,2-dimethylbutane, 4,4'-methylenebis-cyclohexylamine, 1- Amino-3,3,5-trimethyl-5-aminomethylcyclohexane, 1,6-hexanediamine, 2,2-dimethyl-1,3-diaminopropane, 2,4-diamino-1-methylcyclohexane , N-methylaminobis (3-propylamine), 2-methyl-1,5-pentanediamine, 1,5-diaminopentane, 1,4-cyclo
  • the chain terminator is at least one amine.
  • the amines that can be used include, but are not limited to, diethylamine, cyclohexylamine, n-hexylamine and mixtures thereof. Diethylamine is preferred as chain terminator.
  • the polyurethane urea elastic yarn of this invention is 20.0-45.0 meq / kg of amine terminal number of yarns.
  • the amine end of the yarn serves as a dyeing seat bondable with the dye.
  • the number of amine ends of the yarn is less than 20.0 meq / kg, insufficient dyeing improvement effect cannot be expected due to the lack of the dyeing seat.
  • the number of amine end of the yarn is more than 45.0 meq / kg, the dyeability is sufficient, but excessive increase in the number of amine end may cause a big problem in the storage stability of the polymer.
  • the spandex fiber of the present invention may be added with a pigment or dye showing a blue complementary color of yellow to alleviate yellowish yarn.
  • the polyurethaneurea elastic yarn of the present invention may include additives such as titanium dioxide, magnesium stearate, and the like in addition to the above components.
  • Polyurethane urea elastic yarn of the present invention can be fabricated by knitting with nylon, PET, cotton, etc. as a counterpart, in particular, except the PET using a disperse dye that is dyed by physical bonding, through a chemical bond between the dye and fiber
  • the hydrophilicity of polyurethaneurea elastic yarns facilitates dye access to improve dyeability for not only acid dyes but also reactive dyes, and the grin-through phenomenon. It is excellent in dyeing deep color effect of fabric.
  • the polyethylene glycol contained in the polyurethaneurea elastic yarn of the present invention preferably has a weight average molecular weight of 500 to 4000. If the weight average molecular weight is less than 500, it is difficult to expect the effect of improving the dyeability by improving the hydrophilicity of the polyurethane urea elastic yarn, and if it is more than 4000, it is difficult to apply the process due to the problems of deterioration in physical properties and insufficient spinning processability of the polyurethane urea elastic yarn.
  • polyurethaneurea solution 1.0% by weight of triethylene glycol-bis-3- (3-tertylbutyl-4-hydroxyphenyl) propionate as an antioxidant and 1 weight of melamine polyphosphate as an inorganic chlorine agent.
  • 4% by weight of the hydrotalcite (Mg 4 Al 2 (OH) 12 CO 3 ⁇ H 2 O) coated with%, 0.5% by weight of titanium dioxide as a light-resistant agent was prepared to prepare a polyurethaneurea spinning stock solution.
  • the spinning stock solution obtained as described above was spun at a speed of 900 m / min by dry spinning to prepare a polyurethane urea elastic yarn having 40 denier 3 filaments and an amine terminal number of yarn of 33 meq / kg.
  • Example 1 In preparing the prepolymer of Example 1, 15.0 mol% of polyethylene glycol (molecular weight 4000) was mixed with 27.3 kg of polytetramethylene ether glycol (PTMG, molecular weight 1840), and then 4,4'-diphenylmethane di 8.3 kg of isocyanate was added and reacted with stirring at 90 ° C. for 120 minutes in a nitrogen gas stream to prepare a polyurethane prepolymer having an isocyanate at the sock end. Since the manufacturing process is the same as in Example 1.
  • Example 1 In preparing the prepolymer of Example 1, 9.0 kg of 4,4'-diphenylmethane diisocyanate was added without mixing polyethylene glycol to 37.1 kg of polytetramethylene ether glycol (PTMG, molecular weight 1840). The reaction was stirred at 90 ° C. for 120 minutes in a gas stream to prepare a polyurethane prepolymer having an isocyanate at the sock end. Since the manufacturing process is the same as in Example 1.
  • Example 1 In preparing the prepolymer of Example 1, 15.0 mol% of polyethylene glycol (molecular weight 4500) was mixed with 28.1 kg of polytetramethylene ether glycol (PTMG, molecular weight 1840), and then 4,4'-diphenylmethane di 8.4 kg of isocyanate was added and reacted with stirring at 90 ° C. for 120 minutes in a nitrogen gas stream to prepare a polyurethane prepolymer having an isocyanate at the sock end. Since the manufacturing process is the same as in Example 1.
  • the spandex prepared in Examples and Comparative Examples was dyed with an acid dye of black color, and after dyeing, the dyeability (darkness) was measured by lightness (L *) value.
  • the measuring method for the property of the elastic yarn shown in the Example and the comparative example is as follows.
  • load cell 32cN It is measured by load cell 32cN, sample length 10cm, saddle speed 100cm / min using automatic elongation measuring device (MEL machine, Textechno company), and 200% M (modulus) load on yarn when 200% elongation of yarn .
  • MEL machine automatic elongation measuring device
  • L * value of the degree of dyeability was measured by measuring the reflectance of the yarn using a spectrophotometer, and then it was calculated using the formula of CIE Lab color difference equation.
  • the L * value of the L * a * b * color difference values is a value indicating brightness, and as the dye is stained with the same dye, the lower the L * value is.
  • Comparative Example 2 when the molecular weight of polyethylene glycol is less than 500, there is a problem that it is difficult to secure excellent dyeability due to the decrease of the hydrophilic effect.
  • Comparative Example 3 when the molecular weight of polyethylene glycol exceeds 4000, there is a problem that the strength and modulus of the yarn is lowered, the workability during spinning is insufficient and the process is difficult to apply.
  • Comparative Example 4 when the content of polyethylene glycol is less than 5mol%, there is a problem that it is difficult to secure excellent dyeability due to the decrease of the hydrophilic effect.
  • Comparative Example 5 when the content of polyethylene glycol is more than 30mol%, it is difficult to secure the spinning workability due to the lowered heat resistance, there is a problem that the process is difficult to apply.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

La présente invention concerne une fibre élastique de polyuréthane-urée comprenant un polyéthylène glycol ayant un poids moléculaire situé dans la plage allant de 500 à 4 000 et une aptitude à la teinture améliorée à un colorant acide et un colorant réactif et son procédé de fabrication.
PCT/KR2019/000208 2018-08-27 2019-01-07 Fibre élastique de polyuréthane-urée ayant une aptitude à la teinture améliorée et son procédé de fabrication Ceased WO2020045769A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0100777 2018-08-27
KR1020180100777A KR20200024054A (ko) 2018-08-27 2018-08-27 염색성이 개선된 폴리우레탄우레아 탄성사 및 이의 제조방법

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WO2020045769A1 true WO2020045769A1 (fr) 2020-03-05

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WO (1) WO2020045769A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114286876A (zh) * 2020-07-27 2022-04-05 晓星天禧(株) 反应染料可染性聚氨酯脲弹性纱及其制造方法
CN117248290A (zh) * 2023-10-16 2023-12-19 华峰重庆氨纶有限公司 一种耐湿热且易于染色的聚氨酯纤维及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20250112938A (ko) * 2024-01-17 2025-07-25 효성티앤씨 주식회사 가염성 폴리우레탄우레아 탄성사 및 이의 제조방법

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2001098423A (ja) * 1999-09-29 2001-04-10 Asahi Kasei Corp 高速吸湿性ポリウレタン系弾性繊維
JP2003064567A (ja) * 2001-08-22 2003-03-05 Kuraray Co Ltd 易染性ポリウレタン繊維不織布状物
KR101092088B1 (ko) * 2003-05-05 2011-12-12 인비스타 테크놀러지스 에스.에이.알.엘 고생산성 스판덱스 섬유 공정 및 제품
KR101440650B1 (ko) * 2006-12-15 2014-09-19 인비스타 테크놀러지스 에스.에이 알.엘. 폴리우레탄 탄성사 및 그의 제조 방법
KR101533912B1 (ko) * 2014-02-10 2015-07-03 주식회사 효성 친수성 폴리우레탄우레아 탄성사

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001098423A (ja) * 1999-09-29 2001-04-10 Asahi Kasei Corp 高速吸湿性ポリウレタン系弾性繊維
JP2003064567A (ja) * 2001-08-22 2003-03-05 Kuraray Co Ltd 易染性ポリウレタン繊維不織布状物
KR101092088B1 (ko) * 2003-05-05 2011-12-12 인비스타 테크놀러지스 에스.에이.알.엘 고생산성 스판덱스 섬유 공정 및 제품
KR101440650B1 (ko) * 2006-12-15 2014-09-19 인비스타 테크놀러지스 에스.에이 알.엘. 폴리우레탄 탄성사 및 그의 제조 방법
KR101533912B1 (ko) * 2014-02-10 2015-07-03 주식회사 효성 친수성 폴리우레탄우레아 탄성사

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114286876A (zh) * 2020-07-27 2022-04-05 晓星天禧(株) 反应染料可染性聚氨酯脲弹性纱及其制造方法
US20230242700A1 (en) * 2020-07-27 2023-08-03 Hyosung TNC Corporation Polyurethane urea elastic yarn dyeable with reactive dye and manufacturing method therefor
US12030978B2 (en) 2020-07-27 2024-07-09 Hyosung TNC Corporation Polyurethane urea elastic yarn dyeable with reactive dye and manufacturing method therefor
CN117248290A (zh) * 2023-10-16 2023-12-19 华峰重庆氨纶有限公司 一种耐湿热且易于染色的聚氨酯纤维及其制备方法

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