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Method for improving dyeing performance of flax short fiber

A dyeing performance, short fiber technology, applied in the textile field, to achieve the effect of increasing softness and extensibility, improving operability, and smooth processing

Inactive Publication Date: 2019-08-16
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to investigations, using this processing method, the yarn for knitted underwear made from flax staple fiber has not been reported at home and abroad.

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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  • Method for improving dyeing performance of flax short fiber
  • Method for improving dyeing performance of flax short fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] With flax short fiber as raw material, the specific process is as follows:

[0027] (1) Impregnation with penetrant JFC solution: JFC 1.5 g / L, temperature 50°C, time 40 min, liquor ratio 1:30;

[0028] (2) Cationic modification treatment: CHPTAC 15%, sodium carbonate 6%, liquor ratio 1:30, temperature 65°C, time 50min;

[0029] (3) Warm water washing: temperature 40-50°C;

[0030] (4) Peracetic acid neutralization: peracetic acid 1.5 g / L, temperature 70°C, time 40 min, bath ratio 1:30;

[0031] (5) Warm water washing: temperature 40-50°C;

[0032] (6) Reactive dye dyeing: K-type reactive dye 0.8%, dyeing at 60°C, add sodium chloride 8.0g / L, heat up to 90°C at 1°C / min, add sodium carbonate 3.0g / L, keep warm for 50min, bath Ratio 1:30;

[0033] (7) Washing in cold water: 20-30°C;

[0034] (8) Soap boiling: soap flakes 2.0g / L, temperature 95℃, time 7min, liquor ratio 1:30;

[0035] (9) Washing in cold water: 20-30°C;

[0036] (10) Dehydration: 3 to 5 minutes;

[00...

Embodiment 2

[0039] With flax short fiber as raw material, the specific process is as follows:

[0040] (1) Impregnation with penetrant JFC solution: JFC 1.8 g / L, temperature 50°C, time 35 min, bath ratio 1:30;

[0041] (2) Cationic modification treatment: CHPTAC 16%, sodium carbonate 6%, liquor ratio 1:30, temperature 60°C, time 50min;

[0042] (3) Warm water washing: temperature 40-50°C;

[0043] (4) Peracetic acid neutralization: peracetic acid 1.6 g / L, temperature 70°C, time 45 min, bath ratio 1:30;

[0044] (5) Warm water washing: temperature 40-50°C;

[0045] (6) Reactive dye dyeing: K-type reactive dye 0.8%, dyeing at 60°C, add sodium chloride 10.0g / L, heat up to 85°C at 1°C / min, add sodium carbonate 4.0g / L, keep warm for 50min, bath Ratio 1:30;

[0046] (7) Washing in cold water: 20-30°C;

[0047] (8) Soap boiling: soap flakes 2.0g / L, temperature 95℃, time 7min, liquor ratio 1:30;

[0048] (9) Washing in cold water: 20-30°C;

[0049] (10) Dehydration: 3 to 5 minutes;

[0050]...

Embodiment 3

[0052] With flax short fiber as raw material, the specific process is as follows:

[0053] (1) Impregnation with penetrant JFC solution: JFC 2.0 g / L, temperature 40°C, time 40 min, liquor ratio 1:30;

[0054] (2) Cationic modification treatment: CHPTAC 17%, sodium carbonate 7%, liquor ratio 1:30, temperature 65°C, time 45min;

[0055] (3) Warm water washing: temperature 40-50°C;

[0056] (4) Peracetic acid neutralization: peracetic acid 1.8 g / L, temperature 75°C, time 45 min, bath ratio 1:30;

[0057] (5) Warm water washing: temperature 40-50°C;

[0058] (6) Reactive dye dyeing: K-type reactive dye 0.9%, dyeing at 60°C, add 8.5g / L sodium chloride, heat up to 85°C at 1°C / min, add 5.0g / L sodium carbonate, keep warm for 55min, bath Ratio 1:30;

[0059] (7) Washing in cold water: 20-30°C;

[0060] (8) Soap boiling: soap flakes 2.0g / L, temperature 95℃, time 7min, liquor ratio 1:30;

[0061] (9) Washing in cold water: 20-30°C;

[0062] (10) Dehydration: 3 to 5 minutes;

[00...

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Abstract

The invention discloses a method for improving dyeing performance of flax short fiber. According to the method, the flax short fiber is taken as a raw material and is dipped in a penetrant JFC solution, treated through cationic modification, washed with warm water, neutralized with peroxyacetic acid, washed with warm water, dyed with active dyes, washed with cold water, subjected to high-temperature soaping, washed with cold water, dewatered and dried. The method has the advantages that the flax short fiber has positive charge through cationic modification, adsorption of anionic dye is increased, the dyeing percentage is increased by 10.3%-11.8%, the softness and the extensibility are increased, the split degree and the spinnability of the short fiber are improved, the dry and wet rubbingfastness is improved by 0.5-1 grade after dyeing, the method is more environmentally friendly than a conventional dyeing process of the flax short fiber, and the processing and application performanceare improved. The physical indexes and the appearance quality of produced combed short flax high-count yarn meet the requirements of knitted fabric and are equally matched with long flax with the same linear density.

Description

technical field [0001] The invention relates to a method for improving the dyeing performance of flax short fibers, belonging to the technical field of textiles. Background technique [0002] Flax fiber comes from the flax plant, which is one of the most precious ecological resources in nature and a renewable green fiber. Flax fiber absorbs moisture and breathes well, making it a freely breathing textile. Because of its antibacterial health care function, it will be more comfortable and healthy as knitted underwear. Flax short fiber is the leftovers when the flax raw material factory produces flax, and the price is longer than that of flax. Short hemp has high content of lignin, pectin and other accompanying organisms, strong rigidity, low degree of splitting, and small cohesion between fibers, making it poor in spinnability. And because of the high degree of crystallinity and orientation of the short hemp fiber, and there are broken grains and transverse knots on the fib...

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 Applications(China)
IPC IPC(8): D06P1/38D06P1/66D06P1/673D06P3/66D06P5/22
CPCD06P1/38D06P1/66D06P1/6735D06P1/67358D06P3/66D06P5/225
Inventor 高洁韩雪张彩玉张凯康乃心
Owner QIQIHAR UNIVERSITY
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