One-step method production process of high-strength high-shrinkage combined filament yarns

A production process, high shrinkage technology, applied in the directions of melt spinning, fiber processing, filament forming processing, etc., can solve problems such as low elasticity, and achieve the effect of plump, layered, and controllable fabrics

Active Publication Date: 2019-12-10
浙江大地蓝化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is less elastic for high-strength polyester fibers

Method used

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  • One-step method production process of high-strength high-shrinkage combined filament yarns
  • One-step method production process of high-strength high-shrinkage combined filament yarns
  • One-step method production process of high-strength high-shrinkage combined filament yarns

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Experimental program
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Embodiment 1

[0029] combine Figure 1 to Figure 2 , to describe this embodiment in detail. The one-step production process of high-strength and high-shrinkage mixed fiber yarn involved in this embodiment includes the following steps: S1 slice drying, S2 spinning of high-strength polyester filament part, S3 spinning of high-elastic polyester filament part, S4 high-strength polyester filament and high-elastic polyester filament are connected to the grid, and S5 is wound.

[0030] In step S1 slice drying, the high-shrinkage copolyester slices are dried with hot air in a hot-air drying device, so that the moisture content of the high-shrinkage copolyester slices is ≦25×10 -6 , fluctuation value≦5×10 -6 Dew point of drying air≦-35℃, air inlet pressure of drying tower≧7MPa, air outlet air pressure≧8MPa, inlet and outlet pressure difference of about 1MPa; the high-shrinkage copolyester chip component is purified p-phenylene Copolymer formed by chemical reaction of dicarboxylic acid, ethylene g...

Embodiment 2

[0050] combine Figure 1 to Figure 2 , to describe this embodiment in detail. The one-step production process of high-strength and high-shrinkage mixed fiber yarn involved in this embodiment includes the following steps: S1 slice drying, S2 spinning of high-strength polyester filament part, S3 spinning of high-elastic polyester filament part, S4 high-strength polyester filament and high-elastic polyester filament are connected to the grid, and S5 is wound.

[0051] In step S1 slice drying, the high-shrinkage copolyester slices are dried with hot air in a hot-air drying device, so that the moisture content of the high-shrinkage copolyester slices is ≦25×10 -6 , fluctuation value≦5×10 -6 Dew point of drying air≦-35℃, air inlet pressure of drying tower≧7MPa, air outlet air pressure≧8MPa, inlet and outlet pressure difference of about 1MPa; the high-shrinkage copolyester chip component is purified p-phenylene Copolymer formed by chemical reaction of dicarboxylic acid, ethylene g...

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Abstract

The invention discloses a one-step method production process of high-strength high-shrinkage combined filament yarns. The process comprises the following steps of S1 chip drying, S2 spinning of high-strength polyester filaments, S3 spinning of high-elasticity polyester filaments, S4 web connection of the high-strength polyester filaments and the high-elasticity polyester filaments and S5 winding.The invention relates to the one-step method production process of the high-strength high-shrinkage combined filament yarns, and the produced combined filament yarns have both high-strength performance and high-shrinkage performance. Sulfonic-acid-group negative dyeing bases capable of being dyed by cationic dyes, polydihydric alcohol for improving heat stability and dihydric alcohol for reducingthe crystallization performance are added, so that the performance such as hydrophilia, dyeability, lustre and flexibility is comprehensively improved. Under the effect of high-shrinkage polyester fibers, compared with conventional pre-oriented yarns / fully-drawn-yarn combined filament yarns, pile loops formed after thermal treatment are richer in layering sense, the appearance is fluffier, and a formed fabric is fuller, stereoscopic and larger in controllable range of the different shrinkage rate.

Description

technical field [0001] The invention relates to the technical field of mixed fiber yarn production, in particular to a one-step production process of high-strength and high-shrinkage mixed fiber yarn. Background technique [0002] Polyester has the advantages of high strength, high modulus, wear resistance, stable size, and stable chemical properties, and is widely used in various fields such as clothing, decoration, and industry. However, due to the linear macromolecular structure of polyester and the lack of hydrophilic groups, the hydrophilicity, dyeability and softness of polyester are relatively poor. With the improvement of living standards, people pay more and more attention to the comfort performance of clothing, such as: hand feeling, moisture absorption and breathability, etc., and they are more inclined to choose natural fiber products. Cotton has excellent hydrophilic properties, but the supply of cotton fiber in my country is seriously insufficient, which canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/02D02G3/44D01D5/08D01D5/088D01D5/092D01D1/10D02J1/08D01F6/84
CPCD01D1/106D01D5/08D01D5/088D01D5/092D01F6/84D02G3/02D02G3/44D02J1/08D10B2331/04D10B2401/022D10B2401/062D10B2401/14D10B2401/20
Inventor 蔡文荣沈惠洪
Owner 浙江大地蓝化纤有限公司
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