Method for preparing elastic and glossy dacron drawing yarns with potential crimps

A curling elastic, light polyester technology, applied in the direction of stretch spinning, melt spinning, filament/thread forming, etc., to achieve the effect of small air volume, low equipment investment and easy implementation

Inactive Publication Date: 2013-02-06
张家港欣欣高纤股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a textile material, polyester fiber also has obvious disadvantages

Method used

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  • Method for preparing elastic and glossy dacron drawing yarns with potential crimps
  • Method for preparing elastic and glossy dacron drawing yarns with potential crimps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of latent crimp elastic glossy polyester drawing yarn, take the glossy direct-spinning melt that is made by the polymerization of purified terephthalic acid and ethylene glycol as raw material, comprising the following steps: (1) direct-spinning bright Under the action of the booster pump, the spinning melt passes through the melt conveying pipeline with a temperature of 280°C. The melt conveying pipeline adopts biphenyl gas phase heat medium to adjust the melt temperature. In order to prevent serious spinning and spinning , Broken end phenomenon, can control the residence time of the melt, and prevent the degradation of polyester macromolecules from being aggravated after a long stay. At the same time, it is transported into the spinning box under the action of the booster pump, and the pressure provided by the booster pump is 8kg / cm 2 , and after being accurately metered by the metering pump, the speed of the metering pump is 37 rpm, the c...

Embodiment 2

[0021] A kind of preparation method of latent crimp elastic glossy polyester drawing yarn, take the glossy direct-spinning melt that is made by the polymerization of purified terephthalic acid and ethylene glycol as raw material, comprising the following steps: (1) direct-spinning bright Under the action of the booster pump, the spinning melt passes through the melt conveying pipeline with a temperature of 280°C. The melt conveying pipeline adopts biphenyl gas phase heat medium to adjust the melt temperature. In order to prevent serious spinning and spinning , Broken end phenomenon, can control the residence time of the melt, and prevent the degradation of polyester macromolecules from being aggravated after a long stay. At the same time, it is transported into the spinning box under the action of the booster pump, and the pressure provided by the booster pump is 9kg / cm 2 , and after being precisely metered by the metering pump, the speed of the metering pump is 38 rpm, the co...

Embodiment 3

[0023] A kind of preparation method of latent crimp elastic glossy polyester drawing yarn, take the glossy direct-spinning melt that is made by the polymerization of purified terephthalic acid and ethylene glycol as raw material, comprising the following steps: (1) direct-spinning bright Under the action of the booster pump, the spinning melt passes through the melt conveying pipeline with a temperature of 280°C. The melt conveying pipeline adopts biphenyl gas phase heat medium to adjust the melt temperature. In order to prevent serious spinning and spinning , Broken end phenomenon, can control the residence time of the melt, and prevent the degradation of polyester macromolecules from being aggravated after a long stay. At the same time, it is transported into the spinning box under the action of the booster pump, and the pressure provided by the booster pump is 10kg / cm 2 , and after being accurately metered by the metering pump, the speed of the metering pump is 39 rpm, 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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PUM

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Abstract

The invention relates to a method for preparing elastic and glossy dacron drawing yarns with potential crimps. A glossy polyester melt is used as a raw material. The method comprises the steps of 1, conveying the raw material to a spinning box, and forming melt-shaped fibers after measurement and the filtration of a spinning assembly; 2, after solidifying the melt to as-spun fibers, dividing the fibers into two groups, cooling one group of fibers by a side blowing device, arranging one group of heating devices in front of an air inlet of the side blowing device, arranging one group of steam pipelines in the heating devices, controlling an air temperature between 32 DEG C and 40 DEG C, controlling a side blowing speed at 0.5-0.8 m/s, and conveying the other group of fibers to an air-free device, wherein the length of an air-free zone of a spinneret plate is 150 mm, and the air pressure of a side blower is set to 480-600 pa; and 3, after applying oil with an oil nozzle, respectively combining two groups of filaments with crystallization difference by a pre-interlacer in a one-to-one way, then increasing interlacing points by a first hot godet, a second hot godet and a main interlacer, and finally winding and molding by a winder head.

Description

technical field [0001] The invention relates to a preparation method of polyester fiber, in particular to a preparation method of latent crimp elastic glossy polyester drawn yarn. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing fabrics and other non-clothing fields because of its excellent physical and chemical properties. Since its inception, polyester products have also been used by downstream users as the main textile raw material to weave various textiles due to their good drapability, high strength and crispness. With economic globalization and market internationalization, people's requirements for clothing are getting higher and higher. Not only must they be comfortable, but they must also be functional. Fabrics are developing in the direction of lightness, softness and functionality. Synthetic fiber materials are There is a constant need to improve performance to meet weaving requirements. [00...

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): D01D5/22D01D5/08D01D5/088D01D5/084D01D5/16
Inventor 徐汉兴
Owner 张家港欣欣高纤股份有限公司
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