Full-drawn yarn of super fine polyester and manufacturing process thereof

A fully drawn yarn, ultra-fine polyester technology, used in filament/line forming, artificial filament heat treatment, melt spinning and other directions, can solve the problem of poor evenness, dyeing performance and other physical properties, and cannot improve product grades and added value, difficulties in the development of microfiber products, etc., to achieve excellent physical properties, improve product quality and added value, and achieve good fabric styles.

Inactive Publication Date: 2010-06-09
JIANGSU SHENGHONG CHEM FIBRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is difficult to develop microfiber products. The products produced are poor in evenness, dyeing performance and other physical properties. The full roll rate and AA grade rate are low, which affects the weaving of the product and cannot improve the grade and added value of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Further illustrate technical scheme of the present invention by specific embodiment:

[0019] Use Barmag ring blowing equipment to produce 83dtex / 192F polyester full-drawn yarn, firstly through the esterification reaction of purified terephthalic acid and ethylene glycol, and then through pre-condensation and final polycondensation to prepare polyester melt with a viscosity of 0.650 For direct spinning, the one-step process technology of spinning and stretching with ring blowing cooling is adopted. When the melt is conveyed, the temperature of the pipeline is 287°C, and the temperature of the box is 294°C. A 3.5ccm metering pump is used to rotate at a speed of 11.65rpm to ensure the production of products The size of the spinneret is selected as PRB-2*96-0.16*0.60, the metal sand ratio is 60-80 mesh: 145μm / g, and the component pressure reaches 185bar to ensure that the spinneret can produce silk normally. Cooling, the height of the windless area is 75mm, the pressure of...

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PUM

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Abstract

The invention relates to a full-drawn yarn of super fine polyester manufactured by using polyester continuously. The full-drawn yarn of super fine polyester with a specification of 75D/192F is manufactured by a one-step process route of circular blowing, cooling and spinning, and the yarn has good performance. The manufacturing process of the full-drawn yarn of super fine polyester comprises the following steps of: esterifying phthalic acid and glycol by using the refined raw material, preparing the melted polyester by the prepolycondensation and the final polycondensation, and directly spinning the melted polyester. The manufacturing process route comprises melted polyester, conveying the melted polyester, a spinning box, a metering pump, a member, circular blowing cooling, bundling and oiling, a paved path, a first hot roller, an interlacer, a second hot roller and winding. The invention has advantages of reasonable manufacturing processing, good fibre spinnabilitty, smooth weaving, light, flexible quality of the fabric and good style of the fabric, thereby meeting weaving request of fabric and lining of high-grade clothes and improving the grade and the additional value of products.

Description

technical field [0001] The invention relates to a synthetic fiber and its production process, in particular to a 75D / 192F superfine polyester full-drawn yarn and its production and processing process. 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 for weaving various textiles due to their good drapability, high strength, crispness, and resistance to tending. With the globalization of the economy and the internationalization of the market, people's requirements for clothing are getting higher and higher. Not only must they be comfortable, but they must also be functional. There is a constant need to improve performance to meet weaving requirements. Due to its good characteristics such as high cov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/10D01D5/092D01D5/096D01D10/02D02J1/08
Inventor 张叶兴梅锋朱军营谢凌宇
Owner JIANGSU SHENGHONG CHEM FIBRE CO LTD
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