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A kind of elastic yarn and preparation method and twisting process

A technology of elastic silk and silk, which is applied in the field of elastic silk and its preparation and twisting technology, and can solve problems such as discomfort, disappearance, and large stress

Active Publication Date: 2016-04-13
HUZHOU NEW ZHONGHU KNITTED CLOTHING MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Combining spandex and silk to make clothes is of great significance, but there are some problems in the production process. For example, when the elastic silk is stretched, the stress generated is relatively large, resulting in a sense of tightness during wearing. , giving an uncomfortable feeling
In order to improve this situation during processing, the shrinkage state is limited by heat setting, but this leads to another problem that the shrinkage force decreases, thereby reducing or disappearing the elasticity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An elastic yarn, which is formed by mixing silk and spandex in a weight ratio of 3:5, the monofilament diameter of the silk is 9.4-10.2 μm, and the diameter of the spandex monofilament is 19.4-20.2 μm.

[0021] The cross-sectional shape of the spandex yarn is triangular, T-shaped, or circular.

[0022] The preparation method of above-mentioned stretch yarn, comprises the steps:

[0023] (1) The silk raw material and the spandex raw material are made into pre-oriented drawing yarn respectively.

[0024] (2) After the obtained pre-oriented drawing yarn is subjected to equilibrium relaxation treatment at 22°C and a humidity of about 60% for 30 hours, it is then subjected to twisting treatment. The details are as follows: firstly carry out forward twisting to the first strand of silk, and carry out reverse twisting to the first strand of spandex yarn, the forward twist is 100 pieces / 10cm; the reverse winding twist during reverse winding is 70 pieces / 10cm Then parallel twi...

Embodiment 2

[0029] An elastic yarn, which is formed by mixing silk and spandex in a weight ratio of 4:5, the monofilament diameter of the silk is 10-11.2 μm, and the diameter of the spandex monofilament is 20-21.2 μm.

[0030] The cross-sectional shape of the spandex yarn is triangular, T-shaped, or hexagonal.

[0031] The preparation method of above-mentioned stretch yarn, comprises the steps:

[0032] (1) The silk raw material and the spandex raw material are made into pre-oriented drawing yarn respectively.

[0033] (2) After the obtained pre-oriented drawing yarn is subjected to equilibrium relaxation treatment at 24°C and a humidity of about 65% for 20 to 30 hours, it is then subjected to twisting treatment. The details are as follows: firstly carry out forward twisting to the first strand of silk, reverse twisting to the first strand of spandex yarn, the forward twist is 125 pieces / 10cm; the reverse winding twist during reverse winding is 85 pieces / 10cm, Then parallel twisting: th...

Embodiment 3

[0038] An elastic yarn, which is made by mixing silk and spandex in a weight ratio of 3:6, the monofilament diameter of the silk is 10.5-11.8 μm, and the diameter of the spandex monofilament is 19.9-21 μm.

[0039] The cross-sectional shapes of the spandex yarns are T-shaped, circular and hexagonal.

[0040] The preparation method of above-mentioned stretch yarn, comprises the steps:

[0041] (1) The silk raw material and the spandex raw material are made into pre-oriented drawing yarn respectively.

[0042] (2) The obtained pre-oriented drawing yarn is subjected to equilibrium relaxation treatment at 26°C and a humidity of about 70% for 30 hours, and then twisted. The details are as follows: firstly carry out forward twisting to the first strand of silk, reverse twisting to the first strand of spandex yarn, the forward twist is 150 pieces / 10cm; the reverse winding twist during reverse winding is 120 pieces / 10cm, Then parallel twisting: the first cocoon silk, the second coco...

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Abstract

The invention discloses stretch yarn and a production method thereof and a twisting technology. The stretch yarn is formed by mixing of silk and spandex according to a weight ratio of 4: (5-6). The diameter of silk monofilament ranges from 9.4 micrometers to 12.2 micrometers. The diameter of spandex monofilament ranges from 19.4 micrometers to 21.2 micrometers. The production method of the stretch yarn includes production of pre-orientation traction fibers, balancing and loosening, twisting, winding, composite filament production by weaving, stretching, hot setting, boiling-water impregnation and the like. Stress generated when produced composite filaments extend by 50% is below 0.025cN / dtex, and the elastic recovery rate is 60-70%; the stretch yarn produced according to the production method has soft hand feel and is elastic, specific surface areas of fibers are large, moisture absorption and sweat release are facilitated, and clothes made of the stretch yarn are elastic but not tight to wear.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to an elastic yarn, a preparation method and a twisting process. Background technique [0002] The current fashion trend of textiles has the following characteristics: high-tech, functional and environmentally friendly textiles have become the mainstream of the 21st century. As consumers pursue personalization, product variety diversification has become an inevitable trend. In terms of raw material structure, "combination of chemical fiber and natural fiber" is advocated. More attention should be paid to the development and utilization of new fibers, and natural fibers will be developed in the direction of deep processing and fine processing, so as to generate added value through deep processing and improve economic benefits. For the research on elastic yarn, Japan, Italy, South Korea, Australia, etc. have deep research in this area, and some domestic textile research ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/32D02G3/04
CPCD02G3/04D02G3/32D02G3/328
Inventor 闵滢春
Owner HUZHOU NEW ZHONGHU KNITTED CLOTHING MAKING
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