Cashmere-like polyesteramide fiber

A technology of polyamide ester fiber and polyamide ester is applied in the field of polyamide ester fiber, which can solve the problems of softness and hand feeling inferior to cashmere, and achieve the effects of soft hand feeling, reduced fineness and modulus, and moderate fiber strength

Active Publication Date: 2014-07-30
SINOPEC YIZHENG CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the domestic and foreign markets, the thinner hollow polyester staple fiber products of fine denier are products with a denier specification of 1.33 to 1.67 dtex produced by conventional polyester. Reports on the products produced and related production methods

Method used

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  • Cashmere-like polyesteramide fiber
  • Cashmere-like polyesteramide fiber
  • Cashmere-like polyesteramide fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate were put into a stainless steel reactor, the reaction temperature was controlled at 235°C, and the reaction pressure was 0.25 MPa, and the esterification reaction was carried out for 2 hours; after the reaction, the relative viscosity was put into 2.0 PA630 parts, 0.57 parts, 0.38 parts of trimethyl phosphite, stirred for 10 minutes, then the temperature was set to 260°C, the pressure was gradually reduced to 50 Pa within 45 minutes, and the reaction was continued for 105 minutes to obtain the modified polyesteramide.

Embodiment 2

[0025] Example 2: 100 parts of terephthalic acid, 50 parts of ethylene glycol, and 0.05 parts of antimony triacetate were put into a stainless steel reactor, the reaction temperature was controlled at 265°C, and the reaction pressure was 0.2 MPa, and the esterification reaction was carried out for 2 hours; after the reaction, the relative viscosity was put into 2.1 PA1110 parts, DH201-4600.5 parts and stirred for 60 minutes, then the temperature was set to 265 ° C, the pressure was gradually reduced to 300 Pa within 50 minutes, and the reaction was continued for 95 minutes to obtain the modified polyesteramide.

Embodiment 3

[0026] Example 3: 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate were put into a stainless steel reactor, the reaction temperature was controlled at 235°C, and the reaction pressure was 0.25 MPa, and the esterification reaction was carried out for 1 hour; after the reaction, the relative viscosity was put into 2.2 PA620 parts, 0.18 parts, 0.09 parts of phosphorous acid, stir for 10 minutes, then set the temperature at 260°C, gradually reduce the pressure to 50 Pa within 45 minutes, and continue the reaction for 106 minutes to obtain the modified polyesteramide.

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Abstract

Cashmere-like polyesteramide fiber comprises cashmere-like fine-denier polyesteramide short fiber with the denier of 0.8 dtex-2.2 dtex and cashmere-like hollow polyesteramide short fiber with the denier of 1.0 dtex-3.3 dtex. Modified polyesteramide is taken as a raw material and is subjected to melt conveying for preparing precursor fiber, and the precursor fiber is subjected to drafting processing and silicon finishing, and then spinning, cooling and drafting are performed. The modified polyesteramide has flexibility, and refreshing feeling is generated by covering the fiber surface with silicon oil. The obtained fine-denier short fiber is soft and smooth in handfeel, good in warmth retention property and moderate in fiber strength, and helps prepared cloth to possess anti-pilling function. The obtained hollow fine-denier short fiber is stable in physical properties, is high in hollow closure success rate, has warmth retention property, can keep relatively high hollowness degree, is further reduced in fiber denier and modulus under the premise that the fiber is guaranteed to have relatively high hollowness degree and excellent breaking strength and breaking elongation and other physical properties, is effectively improved in fiber flexibility, helps to effectively improve cloth soft handfeel, and reaches the flexibility and warmth retention property of cashmere.

Description

technical field [0001] The invention relates to a polyesteramide fiber, in particular to a cashmere-like polyesteramide fiber. Background technique [0002] Cashmere is the fluff combed from goats, among which the fluff produced by cashmere goats is of the best quality. Every spring is the time for goats to shed their hair. Special iron combs are used to grab the fluff from the body of the goats, wash and comb, and get cashmere after removing coarse hair, dead hair and dander. Cashmere has irregular thin and deep curls, composed of scale layer and cortex layer, without medulla layer, scale density is about 60-70 / mm, fiber cross-section is approximately circular, diameter is smaller than fine wool, average The fineness is mostly 14-16μm, and the length is generally 35-45mm. It is thin, light, soft, smooth and warm. It is mainly used for pure spinning or blending with fine wool to make cashmere sweaters, cashmere scarves, cashmere tweed, Cashmere coats and other high-end pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10D01D5/24D01D5/092D01D5/098C08G69/44
Inventor 薛斌马强蔡秀娣史利梅
Owner SINOPEC YIZHENG CHEM FIBER
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