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Reactive disperse dye one-bath polyester cotton blended yarn dyeing technology

A technology of reactive disperse dyes and disperse dyes, applied in the field of polyester-cotton dyeing, can solve the problems of large sewage discharge, long wet processing time, and long processing time, and achieve the effects of improved production efficiency, good coloring ability, and shortened production time

Active Publication Date: 2017-04-05
ZIBO DARANFANG SILK GRP
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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] Although the two-bath method can obtain a better dyeing effect, the production cost is relatively high due to the complicated procedures, long wet processing time, large water, electricity, steam consumption, and large sewage discharge.
[0004] Although the one-bath two-step process currently used by most manufacturers has shortened the process flow, the two dyes will interact with each other in one bath, resulting in deviations in shade and poor reproducibility of samples.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Dye ratio: Longsheng Disperse Red FB0.2% owf; Ciba Reactive Red 6BN0.2% owf;

[0026] Additives: 0.5g / l compound of tristyrene phenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether at a mass ratio of 7:1, dibutyl benzoate and lauryl alcohol polyoxyethylene ether benzoate 0.5g / l compound with a mass ratio of 6:1, acetic acid 1.0g / l, alkylphenol polyoxyalkylene ether phosphate 2.0g / l, sodium sulfate 40g / l, sodium carbonate 15 g / l;

[0027] 2) Dyeing process: After the polyester-cotton blended yarn enters the dyeing solution, first adjust the temperature to 41°C, add sodium sulfate, and run for 10 minutes; then add reactive dyes and disperse dyes and run for 10 minutes, then add the remaining auxiliaries and run for 10 minutes, and continue to press 1°C Raise the temperature to 65°C at a heating rate of 1°C / min, run for 30 minutes, then raise the temperature to 130°C at a heating rate of 1°C / min, and run for 40 minutes to complete the dyeing;

[0028] 3)...

Embodiment 2

[0030] 1) Dye ratio: Longsheng Disperse Yellow 3GE0.05% owf, Blue 0.28% owf; Ciba Reactive Yellow 4RN0.17% owf, Blue GN0.3% owf;

[0031] Auxiliary: non-ionic high-temperature leveling agent tristyrene phenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether in a mass ratio of 8:1 compound 0.5g / l, repairing agent dibutyl benzoate and lauryl polyoxyethylene ether Oxyethylene ether benzoate compound at a mass ratio of 5:1 is 0.5g / l, acetic acid is 1.0g / l, alkylphenol polyoxyalkylene ether phosphate is 2.0g / l, sodium sulfate is 40g / l, sodium carbonate 15g / l;

[0032] 2) Dyeing process: After the polyester-cotton blended yarn enters the dyeing solution, first adjust the temperature to 42°C, add sodium sulfate, and run for 10 minutes; then add reactive dyes and disperse dyes and run for 10 minutes, then add the remaining additives and run for 10 minutes, and continue at 1°C / Raise the temperature to 64°C at a heating rate of 1 min, run for 28 minutes, then raise the te...

Embodiment 3

[0035] 1) Dye ratio: Longsheng Disperse Blue 0.28% owf; Ciba Reactive Yellow 4RN 0.17% owf;

[0036] Auxiliary: non-ionic high-temperature leveling agent tristyrene phenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether in a mass ratio of 7:1 compound 0.5g / l, repairing agent dibutyl benzoate and lauryl polyoxyethylene ether Oxyethylene ether benzoate compound at a mass ratio of 5.5:1 0.5g / l, acetic acid 1.2g / l, alkylphenol polyoxyalkylene ether phosphate 1.9g / l, sodium sulfate 42g / l, sodium carbonate 14g / l;

[0037] 2) Dyeing process: After the polyester-cotton blended yarn enters the dyeing solution, first adjust the temperature to 43°C, add sodium sulfate, and run for 10 minutes; then add reactive dyes and disperse dyes and run for 10 minutes, then add the remaining additives and run for 10 minutes, and continue to press 1.05°C Raise the temperature to 64°C at a heating rate of 1.05°C / min, run for 32 minutes, then raise the temperature to 129°C at a heating ra...

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PUM

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Abstract

A reactive disperse dye one-bath polyester cotton blended yarn dyeing technology belongs to the field of polyester cotton dyeing technology. The technology is characterized by comprising the following steps: pretreatment, one-bath dyeing and aftertreatment. The one-bath dyeing comprises the following steps: adjusting temperature to 38-45 DEG C after polyester cotton blended yarn enters dye liquor, adding sodium sulfate, and running for 9-11 min; adding reactive dye and disperse dyes and running for 9-11 min, adding residual auxiliary agent and running for 9-11 min, heating at the heating rate of 0.95 DEG C / min-1.1 DEG C / min to the temperature of 63-67 DEG C, running for 27-33 min, heating at the heating rate of 0.95 DEG C / min-1.1 DEG C / min to the temperature of 128-133 DEG C, and running for 37-43 min so as to finish the dyeing. By the one-bath, dyeing of two fibers is realized. By the technology, production efficiency is greatly enhanced, energy consumption is greatly reduced, and one-bath colour shade difference is eliminated.

Description

technical field [0001] A reactive disperse dye one-bath polyester-cotton blended yarn dyeing process belongs to the technical field of polyester-cotton dyeing. Background technique [0002] The dyeing of polyester-cotton blended fabrics has long been done using the two-bath dyeing process (including pre-dyeing treatment, polyester dyeing with disperse dyes, reduction cleaning, water washing, over-dyeing cotton with reactive dyes, 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°C). 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] Although the two-bath method can ...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P1/38D06P1/44D06P1/653D06P1/613D06P1/673D06P3/872
CPCD06P1/16D06P1/38D06P1/445D06P1/613D06P1/6533D06P1/6735D06P3/8252
Inventor 李秀华张承强周善德
Owner ZIBO DARANFANG SILK GRP
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