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Self-elongated polyester fibre and making method, and combined yarn of fabric made from said self-elongate polyester fibre

A technology of self-stretching and mixed fiber yarn, which is applied in the field of mixed fiber yarn or fabric, self-stretching polyester fiber and its preparation, which can solve the problems of short self-stretching function maintenance time and inconvenience in industrial production, and achieve high value , easy storage and transportation, obvious economic benefits

Inactive Publication Date: 2003-05-21
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, disclosed self-stretching polyester generally adopts polyester, polyester copolymer and polyether ester as raw materials, for example, discloses a kind of preparation method of self-stretching polyester in JP49133620 patent, and it uses polyester (poly-p-phenylene Ethylene diformate) as raw material, using unstretched silk in the solution for two-stage thermal stretching, and then the self-extending function is kept for a short time, so it is necessary to self-extend the self-extending function in a short period of time. Polyester is mixed with other fibers to make fabrics, which brings great inconvenience to industrial production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The commercially available POY polyester yarn is stretched 1.4 times at 105° C. (flat drawing machine, winding speed 400 m / min); then set in 180° C. hot air for 0.2 seconds, so that it produces 30% overfeed rate, Obtain self-extensible polyester yarn. It was treated at 180°C for 30 minutes, and its self-elongation was measured to be 6%.

[0023] Using disperse dyes to measure the dye uptake rate of the polyester yarn is 93%, while under the same conditions the dye uptake rate of ordinary polyester yarn is 35%.

[0024] The polyester yarn obtained in Example 1 was placed for 1 month, and then heat-treated at 180° C. for 30 minutes, and its self-elongation was measured to be 6%.

[0025] After the polyester yarn obtained in Example 1 was placed for 6 months, it was heat-treated at 180° C. for 30 minutes, and its self-elongation was measured to be 6%.

[0026] Adopt terylene / viscose (65 / 35) as warp thread, the self-extensible terylene of terylene low-elastic network yarn...

Embodiment 2

[0029] The commercially available POY polyester yarn is stretched 1.3 times at 100°C; (flat pulling machine, winding speed 400 m / min) is then set in hot air at 190°C for 0.2 seconds, so that it produces 28% overfeed rate, The polyester yarn was treated at 180° C. for 30 minutes to produce a self-elongation of 4%.

[0030] Using disperse dyes to measure the dye uptake rate of the polyester yarn is 88%, while under the same conditions the dye uptake rate of common polyester yarn is 35%.

[0031] After the polyester yarn obtained in Example 2 was placed for 6 months, it was heat-treated at 180° C. for 30 minutes, and its self-elongation was measured to be 4%.

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Abstract

The present invention provides a self-extending polyester fibre and its preparation method, and the blended filament yarn or fabric made up by using said self-extending polyester fibre. The automaticextension rate of the self-extending polyester fibre which is measured at 180 deg.C within 30 min, is greater than zero and less than or equal to 15%, after it is stored for above 1 month its automatic extension rate also is retained, and it has high rate of dyeing. The woven fabrir or knitted foods containing said self-extending polyester have good loftiness and glossiness.

Description

technical field [0001] The present invention relates to a polyester fiber and its preparation method, more specifically, to a self-extending polyester fiber and its preparation method, and blended yarn or fabric obtained from the self-extending polyester fiber. Background technique [0002] Since the 1990s, with the improvement of people's living standards, the requirements for clothing materials have become higher and higher, which has prompted continuous improvement in fiber performance and diversification of functions. In particular, it is required that the fiber fabric should have excellent softness, bulkiness and drapability. As we all know, the fabric of ordinary polyester fiber is relatively dull and has poor bulkiness. So people developed the "heterosexual shrinkage yarn" fabric, which increased the fluffy feeling of the fabric. The "heterosexual shrinkage yarn" is made by blending high-shrinkage and low-shrinkage filaments. The fiber structure is generally that th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D10/02D01F6/62D02G3/04D02J1/22
Inventor 高绪珊童俨黄庆
Owner CHINA PETROLEUM & CHEM CORP
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