Ultrafine polyester draw textured yarns and method for processing same

A processing method and ultra-fine polyester technology, applied in filament/thread forming, single-component polyester rayon, textiles and papermaking, etc., can solve the problem of poor evenness, dyeing performance and other physical properties that cannot be improved Problems such as product grade and added value, difficulty in developing microfiber products, etc., to achieve excellent physical properties, improve product grade and added value, and fabric style.

Inactive Publication Date: 2012-06-20
JIANGSU SHENGHONG CHEM FIBRE CO LTD
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  • Abstract
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  • Claims
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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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  • Ultrafine polyester draw textured yarns and method for processing same
  • Ultrafine polyester draw textured yarns and method for processing same
  • Ultrafine polyester draw textured yarns and method for processing same

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Embodiment Construction

[0019] Further illustrate technical scheme of the present invention by specific embodiment:

[0020] Use Barmag ring blowing equipment and winding machine to produce 20D / 144F ultra-fine polyester low-stretch yarn, firstly through the esterification reaction of purified terephthalic acid and ethylene glycol, and then through pre-condensation and final polycondensation to prepare a viscosity of 0.650 The polyester melt is directly spun, and it is produced by spinning-false twisting two-step process technology. When the melt is conveyed, the temperature of the pipeline is 288.5°C, the temperature of the box is 298°C, and the spinneret is PRB-88-144-0.10* 0.20, the metal sand ratio of the component is 100-120 mesh: 180μm / g, so that the pressure reaches 190bar, and the cooling is carried out by means of surrounding air blowing. The difference is 18pa, the height of the oil frame is 500mm, and the oil agent with an effective concentration of 88% is used. The oiling rate of the oil n...

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Abstract

The invention relates to ultrafine polyester draw textured yarns and a method for processing the same. The melt direct spinning technique is used for production of the yarns, pure terephthalic acid and ethylene glycol are subjected to esterification, and polyester melt is prepared by means of pre-polycondensation and final-polycondensation and used for direct spinning, and viscosity of the prepared polyester melt is 0.650. The ultrafine polyester draw textured yarns and the method for processing are characterized in that the specification 20D/144F is adopted, circular blow and a POY (partially oriented yarn)-DTY (draw textured yarn) two-step process line are adopted for production. The method is reasonable, the fibers are fine in spinnability and excellent in physical indexes, broken ends of filaments are few, conversion success rate is high, dyeing uniformity can reach more than 99%, and full bobbin rate can reach more than 98%. The ultrafine polyester draw textured yarns are smooth in weaving, fabrics made of the ultrafine polyester draw textured yarns are light and soft and have good style, weaving requirements of high-grade apparel fabrics are met, and the grade and added values of products are improved.

Description

technical field [0001] The invention relates to a synthetic fiber and a processing method thereof, in particular to a 20D / 144F superfine polyester low elastic yarn and a processing method thereof. 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 coverag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/02D01D5/092D01F6/62
Inventor 张叶兴梅锋朱军营徐春建林镇勇
Owner JIANGSU SHENGHONG CHEM FIBRE CO LTD
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