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Polyester drawn textured yarn and preparation method thereof

A technology of polyester high elastic yarn and polyester, which is applied in rayon manufacturing, filament/thread forming, conjugated synthetic polymer rayon, etc. It can solve the problems of crimping, low breaking strength and high shrinkage, etc. Achieve the effects of reduced shrinkage, high breaking strength, and large curl

Active Publication Date: 2021-02-19
苏州半坡人新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the deficiencies such as high shrinkage rate, low breaking strength and difficulty in taking into account the large degree of crimp and small shrinkage rate of the polyester low elastic yarn prepared by the prior art, thereby providing a low shrinkage rate, crimp, etc. High-strength, high-strength polyester low-elasticity yarn and preparation method thereof

Method used

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  • Polyester drawn textured yarn and preparation method thereof
  • Polyester drawn textured yarn and preparation method thereof
  • Polyester drawn textured yarn and preparation method thereof

Examples

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preparation example Construction

[0023] A preparation method of polyester stretch yarn, comprising the steps of:

[0024] Put the polyester raw material into the mixer for mixing, and after mixing evenly, put it into the hot-melt spinning machine for spinning, then cool, oil and wind to obtain polyester pre-oriented filaments, which are spun into polyester pre-oriented filaments Silk (POY), the POY specification is 289-291dtex / 48f, the breaking strength is 2.1-2.3cN / dtex, the breaking elongation is 130-140%, and the oil content is 0.3-0.4%;

[0025] The above-mentioned polyester pre-oriented filaments are texturized on a texturing machine, and the polyester pre-oriented filaments are pulled by one roller, and fed into the first hot box with a temperature of 180-220°C for heating, and then the heated polyester pre-oriented filaments are heated. False-twist the oriented filaments, and then carry out two rollers on the false-twisted raw yarns, and feed them into the second hot box with a temperature of 20-30°C, ...

Embodiment 1-11

[0029] Table 1 Components and process conditions used in the preparation of polyester elastic yarn

[0030]

[0031]

[0032] Note: Examples 1-5 all used 8 parts of hindered phenolic antioxidant antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate.

[0033] Effect example

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Abstract

The invention relates to polyester drawn textured yarn and a preparation method thereof. The preparation method comprises the following steps that polyester raw materials are spun into polyester pre-oriented filaments, the polyester pre-oriented filaments are subjected to elasticizing processing, and thus polyester high stretch yarn with the crimp shrinkage rate not smaller than 5% is prepared; and the polyesterhigh stretch yarn is heated for a period of time at the temperature of 100-160 DEG C and then cooled, and thus the polyester drawn textured yarn is obtained. The preparation technologyof the polyester drawn textured yarn is simple, but the prepared polyester drawn textured yarn is low in shrinkage rate, large in curling degree and meanwhile high in breaking strength.

Description

technical field [0001] The application belongs to the technical field of fiber preparation, and in particular relates to a polyester low elastic yarn and a preparation method thereof. Background technique [0002] Draw texturing yarn (DTY for short) is a textured yarn type of polyester chemical fiber. It uses polyester chip (PET) as raw material, spins polyester pre-oriented yarn (POY) at high speed, and then draws It is processed by false twisting, which has the characteristics of short process, high efficiency and good quality. In addition to general polyester, it has excellent heat setting performance, good resilience performance, heat resistance, light resistance, strong corrosion resistance, easy washing and quick drying, etc. In addition to its characteristics, it also has the characteristics of high bulkiness, good heat insulation, comfortable handle, and soft luster. It is an excellent silk for fabrics. [0003] However, the polyester low-elasticity yarn prepared by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/02D02J13/00D01D5/34D01F8/14D01F8/12D01F8/10D01F8/04D01F1/10
CPCD02G1/0266D02J13/00D01D5/34D01F8/14D01F8/12D01F8/10D01F8/04D01F1/10D10B2401/061
Inventor 包丽萍
Owner 苏州半坡人新材料有限公司
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