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A fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber

A technology of aromatic polyester and protein fiber, which is applied in fabrics, textiles, textiles and papermaking, etc., can solve the problems of decreased regularity of macromolecules, increased amorphous regions, and weakened crystallization ability, and achieves the effect of simplifying the dyeing process

Active Publication Date: 2019-08-20
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the introduction of the diol structure unit with side chains in the main chain of the polyester molecule, the regularity of the macromolecule is reduced, the crystallization ability is weakened, the amorphous region is increased, and the structure is loose, thus endowing the copolyester fiber disperse dye with normal pressure. However, the fiber dimensional stability of the copolyester is also poor, and it is easy to shrink to a large extent under boiling water conditions.
[0007] None of the above technical solutions has obtained a copolyester fiber and protein fiber blend / interlace fabric that can be mixed / interwoven with protein fibers and can be given to the blend / interlace fabric to achieve synchronous dyeing under 100°C and normal pressure conditions. It cannot solve the urgent demand of the market in terms of polyester fiber / protein fiber blend / interweave materials
[0008] In order to solve the defects in the prior art that cannot meet the market demand, the present invention is proposed

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 fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber
  • A fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber
  • A fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Blending wool and 1.8D aromatic polyester-aliphatic polyester block copolyester fiber with a length of 88mm at a mass ratio of 35 / 65, the yarn gauge is 16 S , woven into a knitted fabric with a square meter weight of 240g, and then dyed.

[0071] The dyeing process is as follows: disperse dyes and acid dyes are dyed in one bath under normal pressure, the dyeing pH is 5.0, acid dyes and disperse dyes are added at the same time, the initial dyeing temperature is 30-40°C, the dyeing temperature is 98-100°C, and the dyeing holding time is 30-60min, the heating rate is 1.0-1.5°C / min, the cooling rate after dyeing is 1.2-2.0°C / min, the temperature is lowered to 65°C for drainage, then 80°C soaping once, 80°C hot water washing twice.

[0072] Aromatic polyester-aliphatic polyester block copolyester is formed by polycondensation of ethylene terephthalate oligomer and aliphatic polydibasic acid glycol ester polyol, and its aromatic polyester-aliphatic The chemical structural fo...

Embodiment 2

[0076] Blending silk and 1.8D aromatic polyester-aliphatic polyester block copolyester fiber at a weight ratio of 20 / 80, the yarn gauge is 16 S , woven into a knitted fabric with a square meter weight of 230g, and then dyed.

[0077] The dyeing process is: disperse dyes and acid dyes are dyed in one bath under normal pressure, the dyeing pH is 4.5, acid dyes and disperse dyes are added at the same time, the initial dyeing temperature is 45°C, the dyeing temperature is 90°C, the dyeing holding time is 60min, and the heating rate 1.0-1.5°C / min, the cooling rate after dyeing is 1.2-2.0°C / min, cool down to 60°C to drain, then soap wash once at 70°C, and wash with hot water at 80°C three times.

[0078] The chemical structural formula of aromatic polyester-aliphatic polyester block copolyester:

[0079]

[0080] Among them, 101 For C2 ~ C8 alkylene, R 2 It is C3~C8 alkylene; straight chain aliphatic dibasic acid is succinic acid; side group aliphatic dibasic alcohol is 1,2-pro...

Embodiment 3

[0083] Rabbit fur and 1.8D aromatic polyester-aliphatic polyester block copolyester fiber are blended at a mass ratio of 70 / 30, and the yarn gauge is 16 S , woven into a knitted fabric with a square meter weight of 220g, and then dyed.

[0084] The dyeing process is as follows: disperse dyes and acid dyes are dyed in one bath under normal pressure, the dyeing pH is 4.5, acid dyes and disperse dyes are added at the same time, the initial dyeing temperature is 45°C, the dyeing temperature is 98°C, the dyeing holding time is 55min, and the heating rate 1.0-1.5°C / min, the cooling rate after dyeing is 1.2-2.0°C / min, cool down to 60°C to drain, then soap wash once at 70°C, and wash with hot water at 80°C three times.

[0085] The chemical structural formula of aromatic polyester-aliphatic polyester block copolyester:

[0086]

[0087] Among them, 151 For C2 ~ C8 alkylene, R 2 It is a C3-C8 alkylene group; the straight-chain aliphatic dibasic acid is adipic acid; the side group ...

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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Abstract

The invention belongs to the field of textile development, in particular to a fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber. Wherein, the fabric is formed by blending or interweaving aromatic polyester-aliphatic polyester block copolyester fibers and protein fibers, and the aromatic polyester-aliphatic polyester block copolyester is composed of Ethylene glycol phthalate oligomer and aliphatic polydibasic acid diol polyol polycondensation reaction, and has the following chemical structure: Among them, 4<x<100, 1<y<25, R 1 For C2 ~ C8 alkylene, R 2 It is a C3-C8 alkylene group. The fabric of the aromatic polyester-aliphatic polyester block copolyester and protein fiber can be dyed without carrier under the condition of below 100°C and normal pressure, and has stable performance.

Description

technical field [0001] The invention belongs to the field of textile development, in particular to a fabric of aromatic polyester-aliphatic polyester block copolyester fiber and protein fiber. Background technique [0002] Polyester fiber (ethylene terephthalate fiber, polyester) has the advantages of high breaking strength, stable shape, good crispness, anti-wrinkle, easy-washing and quick-drying, etc. It is an ideal textile fiber. Polyester fiber and wool and other protein fiber blended fabrics are an important fabric variety, which has the advantages of good crispness and drape, and is widely used in the field of clothing manufacturing such as men's suits and women's coats. [0003] Taking conventional polyester fiber / wool blended fabrics as an example, although the feel and style of the fabric are very popular in the market, due to the large difference in performance between polyester fiber and wool, it has brought difficulties to the manufacture of the blended / interwove...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D15/00C08G81/00D06P3/85D03D15/233D03D15/283D03D15/47D03D15/50
CPCD03D15/00D06P3/8214C08G81/00D10B2211/04D10B2211/01D10B2331/04
Inventor 廉志军金剑李鑫王颖邱志成王雪
Owner CHINESE TEXTILE ACAD
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