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A one-step production process of high-strength and high-shrinkage mixed fiber yarn

A production process, high shrinkage technology, applied in the directions of melt spinning, fiber processing, filament/thread forming, etc., can solve problems such as low elasticity, and achieve the effect of plump fabric, three-dimensional effect, and large controllable range

Active Publication Date: 2021-11-12
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

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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  • A one-step production process of high-strength and high-shrinkage mixed fiber yarn
  • A one-step production process of high-strength and high-shrinkage mixed fiber yarn
  • A one-step production process of high-strength and high-shrinkage mixed fiber yarn

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Experimental program
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Effect test

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 ;The dew point of the drying air≦-35℃, the air inlet pressure of the drying tower≧7MPa, the air outlet air pressure≧8MPa, and the pressure difference between the inlet and outlet air pressure is maintained at about 1MPa; the high-shrinkage copolyester chip component is purified p-phenylene Co...

Embodiment 2

[0050] to 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 ;The dew point of the drying air≦-35℃, the air inlet pressure of the drying tower≧7MPa, the air outlet air pressure≧8MPa, and the pressure difference between the inlet and outlet air pressure is maintained at about 1MPa; the high-shrinkage copolyester chip component is purified p-phenylene ...

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Abstract

The invention discloses a one-step production process of high-strength and high-shrinkage mixed fiber yarn, which comprises 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 part Polyester filaments and high-elastic polyester filaments are connected to the grid and wound in S5. The one-step production process of the high-strength and high-shrinkage mixed fiber yarn involved in the present invention enables the produced mixed fiber yarn to have both high strength and high shrinkage properties. Added cationic dye dyeable sulfonic acid group negative dyeing base, polyglycol to improve thermal stability, diol to reduce crystallization performance, so that hydrophilicity, dyeability, gloss, softness and other properties can be integrated improve. Due to the effect of high-shrinkage polyester fiber, compared with conventional pre-oriented yarn / fully drawn yarn blended yarn, the loops formed after heat treatment are more layered, the appearance is more fluffy, and the formed fabric is fuller and has a three-dimensional effect. The controllable range of differential shrinkage is larger.

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, because polyester has a linear macromolecular structure and lacks 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 cannot meet...

Claims

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Application Information

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Patent Type & Authority Patents(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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