Multifunctional chromatophil copolyester fiber in high rate of retention and profile spinneret adopted

A spinneret and fiber technology, which is applied to the preparation method and the field of the spinneret used, can solve the problems of low dyeability and low water retention rate of polyester fibers, and achieve the effects of high water retention rate and soft and comfortable fabric feel.

Inactive Publication Date: 2005-01-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention lies in disclosing the multifunctional copolyester fiber with high water retention rate and easy dye

Method used

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  • Multifunctional chromatophil copolyester fiber in high rate of retention and profile spinneret adopted
  • Multifunctional chromatophil copolyester fiber in high rate of retention and profile spinneret adopted
  • Multifunctional chromatophil copolyester fiber in high rate of retention and profile spinneret adopted

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] After drying the ethylene terephthalate slices, use e.g. figure 1 The special-shaped spinneret shown in the Japanese ABE Engineering Co twin-screw spinning machine and Barmag 3010 stretching machine, the control screw temperature is 290 ° C, the winding speed is 1000 m / min, the cooling air temperature is 27 ° C, and the draw ratio is 3.5 times , to produce special-shaped hollow fibers. The fineness, breaking strength and elongation at break of the obtained fibers are shown in No. 1 in Table 1. The water retention rate of the obtained fiber and the alkali weight reduction rate and water retention rate obtained after alkali reduction treatment at 95°C for 60 minutes in 10g / l or 20g / l NaOH alkali solution are shown in No. 1 in Table 2 .

Embodiment 2

[0035] After the cationic dye-dyeable copolyester chip whose SIP content of the third monomer is 3 mol% relative to PTA is dried, the special-shaped hollow fiber is obtained by the same method as in Example 1. The fineness, breaking strength and elongation at break of the obtained fibers are shown in No. 2 in Table 1. The water retention rate of the obtained fibers and the alkali weight reduction rate and water retention rate obtained after alkali reduction treatment at 95° C. for 60 minutes in 10 g / l NaOH alkali solution are shown in No. 2 in Table 2.

Embodiment 3

[0037] The content of the third monomer SIP relative to PTA3mol% cationic dye dyeable copolyester chips after drying, using such as figure 2 For the special-shaped spinneret shown, the same method as in Example 1 was used to prepare special-shaped hollow fibers. The fineness, breaking strength and elongation at break of the obtained fibers are shown in No. 3 in Table 1. The water retention rate of the obtained fiber and the alkali weight reduction rate and water retention rate obtained after alkali reduction treatment at 95° C. for 60 minutes in 10 g / l NaOH alkali solution are shown in No. 3 in Table 2.

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Abstract

This invention cuts and mixes in different proportion TPA - isophthalic acid 5-sodium sulfonate glycol ester for different triod anode ion. dyes or TPA - isophthalic acid glycol ester for disperse dyes to design modified silk spray plates to spin modified hollow closed cross-section fibers and optimize the alkali process conditions to get high water reserved rate free dyed multifunction copolyester fibers.

Description

technical field [0001] The invention relates to a preparation method of polyester fiber and a used spinneret, in particular to a preparation method of polyester fiber and a used special-shaped spinneret. Background technique [0002] Polyester is a fiber made from polyethylene terephthalate (referred to as polyester or PET, the same below) as raw material after melt spinning. [0003] Polyester has excellent physical and mechanical properties, high elastic modulus, good heat resistance, easy washing and quick drying; physical and mechanical properties have great plasticity, and different processing techniques can be used to produce short fibers that can be blended with cotton, wool, hemp and other natural fibers. A fiber that can also be produced as a filament for weaving or knitting. Therefore, polyester fiber has been developed rapidly all over the world. [0004] However, due to the tight aggregation of polyester molecular chains, high crystallinity and orientation, low...

Claims

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Application Information

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IPC IPC(8): D01D4/02D01F6/62
Inventor 顾利霞肖茹马晓光朱玉鸯王留阳
Owner DONGHUA UNIV
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