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Production method for high-elastic polyester yarn

A processing method and technology of polyester yarn, applied in textiles and papermaking, etc., can solve the problems of poor unwinding, severe end breakage, insufficient fabric elasticity, etc., and achieve the effects of improving curl shrinkage, weaving efficiency, and elasticity.

Inactive Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional polyester yarn has limited elasticity and has the following disadvantages: (1) The crimp shrinkage rate of the product is low, taking DTY167Dtex / 47f as an example, it can only reach about 18%; Poor unwinding during the process affects weaving efficiency; (3) The fabric is not elastic enough, and the wearer feels tight and uncomfortable, so it is not suitable for fabrics with certain elasticity requirements such as denim fabrics

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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  • Production method for high-elastic polyester yarn
  • Production method for high-elastic polyester yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0016] A processing method of high-elastic polyester yarn, using polyester POY as raw material, the processing method flow chart is as follows figure 1 As shown, the production process is as follows: original wire frame → first roller 1 → deformation heating box 2 → cooling plate 3 → false twist deformation 4 → second roller 5 → shaping heating box 6 → third roller 7 → oiling → coiling Winding → grading packaging. In the present invention, the temperature of the deformation heating box is increased to 210-240°C, which is near the limit condition of thermal deformation of polyester yarn, and the setting heating box is closed, and the setting is cooled at ambient temperature, in order to improve the crimping and shrinkage of the yarn Rate, and then improve the elasticity of the yarn, set the processing speed of the production line to 400~550m / min, during the processing, reduce the network and increase the fineness of the single filament. In addition, in order to increase the cr...

Embodiment 4

[0025] [Example 4 ~ 5]

[0026] A processing method of high-elastic polyester yarn, the processing technology, raw materials, processing machine, crimp shrinkage testing instrument and method, and unwinding performance testing instrument are all the same as those in Examples 1-3.

[0027] In Examples 4-5, the temperature of the deformation heating box is set to 225°C, the shaping heating box is turned off, and the combination modes of the false twisters are respectively set to 1-5-1 and 1-6-1. Schematic diagram of the combination mode of the false twisters Such as figure 2 As shown, it includes the driving shaft A, the driven shaft B, the driven shaft C, the output disc 1, the working disc 2, the spacer 3 and the leading disc 4. On the shaft A and the driven shaft B, spacers 3 are set in series between the working discs to keep a constant distance.

Embodiment 6~7

[0035] A processing method of high-elastic polyester yarn, the processing technology, raw materials, processing machine, crimp shrinkage testing instrument and method, and unwinding performance testing instrument are all the same as those in Examples 1-3.

[0036] In Examples 6-7, the temperature of the deformation heating box is set to 225°C, the setting heating box is closed, the false twister combinations are set to 1-5-1 and 1-6-1 respectively, and the speed of the production line is set to 500m / min and 400m / min.

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 discloses a production method for high-elastic polyester yarn, wherein polyester POY serves as a raw material. The production method comprises the steps that the polyester POY passes through a raw silk frame, a first roller, a deformation heat box and a cooling plate to achieve false twisting deformation, then passes a second roller, a shaping heat box and a third roller, oil is applied, and the polyester POY winds and is packaged in a classified mode. In the production process, the temperature of the deformation heat box ranges from 210 DEG C to 240 DEG C, and the shaping heat box is closed. By means of the production method for the high-elastic polyester yarn, the crimp shrinking percentage of the polyester yarn can be improved effectively and improved from about 18% in the prior art to about 50%, the yarn is more crimped and fluffy, the elasticity of the yarn is largely improved, the requirements of elastic fabric such as sportswear fabric and elastic jean cloth are met, successful unwinding of the polyester yarn in the later weaving process is ensured, and weaving efficiency is improved.

Description

technical field [0001] The invention relates to a processing method of polyester yarn, in particular to a processing method of high-elastic polyester yarn. Background technique [0002] In the prior art, polyester POY is used as the raw material, and the production process is as follows: raw silk rack→first roller→deformation heating box→cooling pulley→false twist deformation→second roller→setting heating box→third roller→oiling→ Winding → graded packaging. The yarn is heated in the deformation heating box and deformed by the false twister, and under the action of the setting heating box, the bending shape is fixed, so that the fiber has a certain crimp shrinkage performance, and the higher the crimp shrinkage rate, the greater the elasticity of the yarn , the higher the elasticity of the fabric. However, conventional polyester yarn has limited elasticity and has the following disadvantages: (1) The crimp shrinkage rate of the product is low, taking DTY167Dtex / 47f as an ex...

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): D02G1/02
Inventor 周召勇李喜亮韩利清
Owner CHINA PETROLEUM & CHEM CORP
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