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High-temperature high-pressure swelling dyeing method

A dyeing method, high temperature and high pressure technology, applied in the direction of dyeing method, continuous processing of textile materials, processing of textile materials, etc., can solve the problems of uneven dyeing of fibers or fabrics, and the light fastness can only reach grade 3. , to achieve the effect of bright color, bright color and small bath ratio

Inactive Publication Date: 2008-06-04
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors have found through further research that the above-mentioned method is uneven and impermeable to the dyeing of fibers or fabrics, and its light fastness can only reach grade 3.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Dyeing: Put the pretreated aramid fiber 1313 into a dyeing bath composed of benzoic acid, disperse dyes, sodium sulfate, and acetic acid to heat up at a bath ratio of 1:5 and a heating rate of 1 / min to achieve high temperature and high pressure When the puffing dyeing temperature is 160°C, keep it warm for 0.5 hours, then lower the temperature at a cooling rate of 1°C / min to a discharge temperature of 40°C for liquid drainage, and obtain dyed aramid fiber 1313; the amount of benzoic acid is 1% o.w.f, and sodium sulfate The dosage of disperse dye is 0.3% o.w.f, the dosage of disperse dye is 0.5% o.w.f, and the pH of the dyeing bath is adjusted to 5 with acetic acid;

[0035] (2) Post-treatment: Soap the dyed aramid 1313 fiber at a soaping temperature of 60°C for 10 minutes, then dehydrate and dry to make aramid 1313 colored fiber, wherein the soaping liquid is made of Na 2 CO 3 , hydrosulfite and detergent, Na 2 CO 3 The dosage of the detergent is 1g / l, the dosage...

Embodiment 2

[0037] (1) Dyeing: Put the pretreated sulfonamide fabric into a dyeing bath composed of benzoic acid, cationic dyes, salt, and hydrochloric acid to heat up at a bath ratio of 1:40 and a heating rate of 8°C / min to achieve high temperature and high pressure puffing When the dyeing temperature is 180°C, keep it warm for 2 hours, then lower it to a discharge temperature of 100°C at a cooling rate of 10°C / min to drain the liquid, and obtain a dyed sulfonamide fabric; the amount of benzoic acid is 9% o.w.f, and the amount of salt is 6% o.w.f, the dosage of cationic dye is 5% o.w.f, and the pH of the dyeing bath is adjusted to 4 with hydrochloric acid;

[0038] (2) Post-treatment: Soap the dyed polysulfone fiber fabric at a soaping temperature of 80°C for 30 minutes, then dehydrate and dry to make a polysulfone fiber dyed fabric, in which the soaping liquid is made of Na 2 CO 3 , hydrosulfite and detergent, Na 2 CO 3 The dosage of the detergent is 10g / l, the dosage of hydrosulfite...

Embodiment 3

[0040](1) Dyeing: Put the pretreated polyphenylene sulfide fiber into a dyeing bath composed of salicylate, acid dye, sodium nitrate, and formic acid to raise the temperature at a bath ratio of 1:7 and a heating rate of 2°C / min , when reaching the high temperature and high pressure puffing dyeing temperature of 155°C, keep it warm for 1 hour, then reduce the temperature to 80°C at the discharge temperature at a cooling rate of 4°C / min to drain the liquid, and obtain the dyed polyphenylene sulfide fiber; wherein the amount of salicylate is 2% o.w.f, the dosage of sodium nitrate is 1% o.w.f, the dosage of acid dye is 1% o.w.f, and the pH of the dyeing bath is adjusted to 6 with formic acid;

[0041] (2) Post-treatment: Soap the dyed polyphenylene sulfide fiber at a soaping temperature of 80°C for 30 minutes, then dehydrate and dry to make polyphenylene sulfide colored fiber, wherein the soaping liquid is made of Na 2 CO 3 , hydrosulfite and detergent, Na 2 CO 3 The dosage of ...

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Abstract

The invention relates to a high temperature high pressure bulking dyeing method which comprises dyeing and after treatment. By adoption of the dyeing method of the invention, fibers or textile fabrics like aramid fibers, polysulfonamide fibers, polyphenylene sulfides, polybenzimidazole, poly-p-phenylene benzobisoxazole fibers, phenol formaldehyde resins, fibrilia and so on which have high crystallinity and high orientation degree or high glass transformation temperature can be dyed, and fibers after dyeing have the advantages of evenness, bright colors, high dyefastness, improvement of light fastness and little impact on physical properties.

Description

technical field [0001] The present invention relates to a high-temperature and high-pressure puffing dyeing method, and more specifically relates to aramid fiber, aryl sulfone fiber, polystupid sulfide, polybenzimidazole, poly-p-phenylene benzobisoxazole, phenolic resin, hemp fiber, etc. Dyeing method of fibers or fabrics with high crystallinity and orientation and high glass transition temperature. Background technique [0002] Aramid fibers include aramid fiber 1414 and aramid fiber 1313. The chemical names are polyparaphenylene terephthalamide and polym-phenylene isophthalamide. They were first developed by DuPont in the United States. The trade name is Nomex. It has excellent properties such as high strength, high modulus, small specific gravity, and high temperature resistance. It is widely used in high-strength structural materials for aviation and aerospace, marine cables, tires for luxury cars, cords, ultra-filter materials, and high-temperature resistant materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/653D06P1/651D06P1/645D06P1/673D06P1/60D06P1/66D06P1/62D06P3/24D06P3/02D06P3/58D06P5/02D06B21/00
Inventor 郝新敏张建春梁高勇
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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