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Nylon 66 DTY (draw textured yarn) high-elasticity yarn process

A high-stretch yarn and POY-DTY technology, applied in the field of spinning materials, can solve the problems of poor water absorption, easy pilling, thick fibers, etc., and achieve the effect of long-lasting fragrance and good stability

Inactive Publication Date: 2012-11-07
WUJIANG YATAI CHEM TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, fabrics are generally used, because of their thick fibers, rough hand feeling, poor softness, poor air permeability, poor water absorption, and easy to fluff and pilling.

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

[0016] Using nylon 66 chips, pyrrole aromatic compounds, antioxidants, metal salt catalysts and dispersants as raw materials, the POY-DTY process is used to prepare the DTY high elastic yarn, wherein in the POY-DTY process, the POY process route is: Screw extruder→prefilter→static mixer→metering pump→spinning assembly→spinning→side blowing and oiling→chone→POY coiled yarn; among them: melt spinning temperature: 270-275℃; side blowing conditions : Wind speed 0.2-0.3 m / s, wind temperature 20-30 ℃, relative humidity 60-75%; oiling rate 0.8-1.8%; spinning speed 3500-4500 m / min; among them, DTY production process route It is: yarn guide→feeding roller→first hot box→cooling plate→false twister→output roller→oiling device→DTY winding yarn; among them, the temperature of the first hot box is 150-175 ℃, D / Y The ratio is 1.2-1.5, and the draft ratio is 1.15-1.30. The raw materials are based on the weight of nylon 66 chips, the amount of pyrrole aromatic compound is 0.05wt%, the amount ...

Embodiment 2

[0018] Using nylon 66 chips, pyrrole aromatic compounds, antioxidants, metal salt catalysts and dispersants as raw materials, the POY-DTY process is used to prepare the DTY high elastic yarn, wherein in the POY-DTY process, the POY process route is: Screw extruder→prefilter→static mixer→metering pump→spinning assembly→spinning→side blowing and oiling→chone→POY coiled yarn; among them: melt spinning temperature: 270-275℃; side blowing conditions : Wind speed 0.2-0.3 m / s, wind temperature 20-30 ℃, relative humidity 60-75%; oiling rate 0.8-1.8%; spinning speed 3500-4500 m / min; among them, DTY production process route It is: yarn guide→feeding roller→first hot box→cooling plate→false twister→output roller→oiling device→DTY winding yarn; among them, the temperature of the first hot box is 150-175 ℃, D / Y The ratio is 1.2-1.5, and the draft ratio is 1.15-1.30. Wherein, the raw material is based on the weight of nylon 66 chips, the amount of pyrrole aromatic compound is 0.10wt%, the ...

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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Abstract

The invention relates to a nylon 66 DTY (draw textured yarn) high-elasticity yarn. The nylon 66 DTY high-elasticity yarn is made of nylon 66 chips, pyrrole aromatic compounds, antioxidant, metal salt catalysts and dispersing agents by means of a POY (pre-oriented yarn)-DTY process. The prepared high-elasticity yarn has durable and stable faint scent and can meet different requirements of post-weaving and finishing processing.

Description

technical field [0001] The invention belongs to the field of spinning materials, and in particular relates to a spinning process for producing polyamide fibers by slicing. Background technique [0002] At present, synthetic fibers generally include polyester (polyester), nylon (polyamide), polypropylene (polypropylene), spandex (polyurethane), acrylic (polyacrylonitrile) and the like. These fibers have different properties and thus different uses. But at present generally take fabric, because its fiber is thicker, feel rough, softness is poor, air permeability is poor, water absorption is poor, easy to pilling. With the improvement of people's living standards, the requirements for textiles are getting higher and higher. [0003] Polyamide fiber is the earliest synthetic fiber variety put into industrial production in the world. It is made of polyamide synthesized by polycondensation reaction of aliphatic dibasic acid and diamine or aliphatic amino acid, and then melt-spu...

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): D01F6/90D01F1/10D01D5/08D01D5/092D02G1/02
Inventor 庞振卫
Owner WUJIANG YATAI CHEM TEXTILE
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