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Disperse dye and reactive dye one-bath dyeing process of polyester cotton

A technology of disperse dyes and reactive dyes, applied in the field of dyeing, can solve the problems of uneven coloring, no use value, complicated procedures, etc., and achieve the effects of avoiding influence and hydrolysis damage, good leveling effect, and excellent slow release function.

Inactive Publication Date: 2019-01-29
ANHUI YAYUAN PRINTING & DYEING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional process includes pre-dyeing treatment, polyester dyeing with disperse dyes, reduction cleaning, water washing, over-dyeing cotton with reactive dyes, and water washing steps. Due to the complicated procedures and long processing time (12 hours), the production efficiency is low
[0003]The existing one-bath dyeing of disperse / reactive dyes replaces the two-bath and two-step dyeing of disperse / reactive dyes, although the occurrence of two-bath dyeing can be avoided to a certain extent However, there are still a lot of problems in the one-bath dyeing method of disperse / reactive dyes. For example, the limitations of the reactive dyes and disperse dyes used are very large. Both reactive dyes and disperse dyes require certain specific dyeing performance requirements, and do not have a wide range of dyeing properties. The use value, and the two dyes in one bath will affect each other, resulting in uneven coloring, color flowers, color difference, low color fixation rate and other defects

Method used

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  • Disperse dye and reactive dye one-bath dyeing process of polyester cotton

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Embodiment 1

[0016] A one-bath dyeing process of polyester cotton with disperse dyes and reactive dyes, comprising: preparing a dye liquor, said dye liquor comprising: reactive dye 0.5% owf, sodium sulfate 10g / L, pH buffer 1g / L, disperse dye microcapsules 0.5% owf, dyeing auxiliaries 3g / L, described reactive dyestuff is reactive red KE-3B, and described dyeing auxiliaries comprises triethanolamine and tristyrene phenol polyoxyethylene ether; Described pH buffering agent is sodium dihydrogen phosphate / disodium hydrogen phosphate, adjust the pH of the dye solution to 4, soak the polyester cotton according to the bath ratio of 1:30, raise the temperature to 90°C at a rate of 2°C / min, keep it warm for 5min, and then raise the temperature to 130°C at a rate of 2.5°C / min , keep warm for 35 minutes, cool down to 70°C, keep warm for 15 minutes, wash with water at 50°C for 20 minutes, use 1g / L neutral soap flakes and 3g / L soda ash at 90°C for 25 minutes, wash at 30°C for 15 minutes, and dry;

[0...

Embodiment 2

[0019] A one-bath dyeing process of polyester cotton with disperse dyes and reactive dyes, comprising: preparing a dye liquor, said dye liquor comprising: reactive dye 2% owf, sodium sulfate 30g / L, pH buffer 3g / L, disperse dye microcapsules 5% owf, dyeing auxiliaries 0.1g / L, described reactive dyestuff is reactive yellow KD-3G, described dyeing auxiliaries comprises N-methyldiethanolamine and fatty alcohol polyoxyethylene ether, and described pH buffering agent is phosphoric acid Potassium dihydrogen / disodium hydrogen phosphate, adjust the pH of the dye solution to 6, immerse in polyester cotton according to the bath ratio of 1:10, raise the temperature to 80°C at a rate of 3°C / min, keep it warm for 15 minutes, and then increase the temperature at a rate of 1.5°C / min Heat to 140°C, keep warm for 25 minutes, cool down to 80°C, keep warm for 5 minutes, wash with water at 60°C for 10 minutes, use 3g / L neutral soap flakes and 1g / L soda ash at 100°C for 15 minutes, wash with water a...

Embodiment 3

[0022] A one-bath dyeing process of polyester cotton with disperse dyes and reactive dyes, comprising: preparing dye liquor, said dye liquor comprising: reactive dye 1% owf, sodium sulfate 20g / L, pH buffer 2g / L, disperse dye microcapsules 3% owf, dyeing auxiliary agent 2g / L, described reactive dyestuff is reactive turquoise blue KN-G, and described dyeing auxiliary agent comprises N, N-dimethylethanolamine and tristyrene phenol polyoxyethylene ether, regulates dye liquor When the pH is 5, immerse in polyester cotton according to the bath ratio of 1:20, raise the temperature to 85°C at a rate of 2.5°C / min, keep it for 10 minutes, then raise the temperature to 135°C at a rate of 2°C / min, keep it for 30 minutes, and cool down to 75°C. Keep warm for 10 minutes, wash with water at 55°C for 15 minutes, use 2g / L neutral soap flakes and 2g / L soda ash at 95°C for 20 minutes, wash at 35°C for 10 minutes, and dry;

[0023] Wherein, preparing the disperse dye microcapsules comprises: addi...

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Abstract

The invention discloses a disperse dye and reactive dye one-bath dyeing process of polyester cotton, and the disperse dye and reactive dye one-bath dyeing process comprises the following steps: preparing a dye liquor comprising 0.5-2% of a reactive dye, 10-30 g / L of sodium sulfate, 1-3 g / L of a pH buffering agent, 0.5% -5% of disperse dye microcapsules and 0.1% -3 g / L of dyeing aids, adjusting thepH of the dye liquor to 4-6, immersing the polyester cotton according to the bath ratio of 1: 10-30, heating to 80-90 DEG C at a rate of 2-3 DEG C / min, keeping the temperature for 5-15 minutes, thenheating to 130-140 DEG C at a rate of 1.5-2.5 DEG C / min, keeping the temperature for 25-35 minutes, cooling to 70-80 DEG C, and keeping the temperature for 5-15 min. The disperse dye and reactive dyeone-bath dyeing process has high production efficiency, the process flow is short, and dyes are wide in application range, uniform in coloring, high in color fastness and good in leveling property.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a one-bath dyeing process of polyester cotton with disperse dyes and reactive dyes. Background technique [0002] The dyeing of polyester-cotton blended fabrics has long been a two-bath dyeing process (including pre-dyeing treatment, polyester dyeing with disperse dyes, reduction cleaning, water washing, reactive dye over-dyeing cotton and water washing steps), that is, first at high temperature (130 ℃) Dye polyester fibers with disperse dyes, after reduction cleaning, then dye cotton fibers with reactive dyes at room temperature (below 60 ℃). The traditional process includes pre-dyeing treatment, polyester dyeing with disperse dyes, reduction cleaning, water washing, over-dyeing cotton with reactive dyes, and water washing steps. Because of the complicated procedures and long processing time (12 hours), the production efficiency is low. [0003] The existing disperse / reactive dy...

Claims

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Application Information

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IPC IPC(8): D06P3/872D06P1/00D06P1/16D06P1/38D06P1/673
CPCD06P1/0016D06P1/0032D06P1/16D06P1/38D06P1/6735D06P3/8252
Inventor 潘学东
Owner ANHUI YAYUAN PRINTING & DYEING CO LTD
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