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Production method of high-elasticity fiber

A production method and high elasticity technology, applied in fiber processing, melt spinning, conjugated synthetic polymer artificial filament, etc., can solve the problems of serious product homogeneity and isomorphism, lack of core competitiveness, etc., and achieve dye uptake High, low dyeing cost effect

Inactive Publication Date: 2019-08-23
TONGKUN GRP
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  • Abstract
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  • Application Information

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Problems solved by technology

At the same time, the polyester industry is also facing severe challenges, with serious product homogeneity and lack of core competitiveness

Method used

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  • Production method of high-elasticity fiber

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Embodiment Construction

[0018] The present invention will be further described below with regard to specific embodiment:

[0019] A production method of high elastic fiber, select PET and PBT to be transported to the spinning assembly through the twin-screw conveyor and mixed, then through side blowing, oiling, pre-network, drafting and setting, main network, winding forming, inspection, grading The packaging process is completed, in which PET enters the spinning assembly through conveying, pre-crystallization, drying, melt extrusion, filtration and box metering pump, and PBT enters the spinning assembly through conveying, drying, melt extrusion, filtration and box metering pump components. And the polyester chips used for the PBT component are specific chips with a viscosity of about 1.3dl / g from Jiangsu Hengli Group. Increase the viscosity difference between the two components; the ratio of PBT and PET components is 50:50; during the spinning process, try to reduce the PBT spinning temperature (no...

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Abstract

The invention discloses a production method of high-elasticity fiber. The production method includes: selecting PET and PBT to be conveyed to a spinning component through a double-screw conveyor for mixing, and performing lateral air blowing, oiling, pre-networking, drafting and setting, main-networking, winding for forming, inspecting and graded packaging to complete production, wherein PET enters the spinning component through conveying, pre-crystallizing, drying, melted extrusion, filtering and a box metering pump, PBT enters the spinning component through conveying, drying, melted extrusion, filtering and the box metering pump, viscosity of PET is 0.45-0.55dl / g, viscosity of PBT is 1.25-1.4dl / g, and a proportion of PET and PBT is 1:1-1:1.1. The fiber produced by the method has characteristics of both PBT and PET; due to a side-by-side compositing mode, the fabric has lasting and stable high elasticity and functions of moisture absorption and perspiration.

Description

[0001] Technical field: [0002] The invention relates to the production technology of polyester composite yarn, in particular to the production technology of T4000 series high elastic fiber. [0003] Background technique: [0004] After decades of rapid development, polyester fiber has become the textile fiber with the largest output and the most varieties in my country. At the same time, the polyester industry is also facing severe challenges, with serious product homogeneity and lack of core competitiveness. Therefore, only by developing high-tech products can we win in the fierce market competition. [0005] Invention content: [0006] The technical problem to be solved by the present invention is to provide a production method of high elastic fiber, the fiber produced by the production method not only has the characteristics of PBT, but also has the characteristics of PET, and at the same time, because of its parallel composite mode, the fiber has Durable, stable high e...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01D5/08D01D5/28
CPCD01D5/08D01D5/28D01F8/14
Inventor 俞洋杨卫星胡建松刘少波黄华福钱跃兴范仁忠
Owner TONGKUN GRP
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