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A reactive dyeing post-processing process

A reactive dye and post-processing technology, applied in the field of cotton knitting dyeing process, can solve the problems of many times of water use, long washing time, and high energy consumption, and achieve the effects of saving steam and electricity, reducing high-temperature washing time, and reducing production consumption costs.

Active Publication Date: 2022-07-22
QINGDAO JIFA GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Cotton knit fabric reactive dyeing production water can be generally divided into three parts: pretreatment-dyeing-post-treatment. In the existing post-treatment process steps of cotton knit dyeing, the washing time is long, the frequency of water is high, and the energy consumption is high.

Method used

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  • A reactive dyeing post-processing process
  • A reactive dyeing post-processing process
  • A reactive dyeing post-processing process

Examples

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Effect test

Embodiment 1

[0033] The post-processing steps provided by the present invention specifically include:

[0034] Wash with water at 60°C for 6 min → wash with water at 70°C for 6 min → add 2.5% pickling solution, neutralize pickling at 70°C for 6 min → add 1% saponifier, soap at 90°C for 6 min → wash with water at 80°C for 6 min → wash with water at 70°C for 6 min → wash with water at 40°C 6min → emulsification.

Embodiment 2

[0044] The post-processing steps provided by the present invention specifically include:

[0045]Wash with water at 60°C for 6 min → wash with water at 70°C for 6 min → add 2.5% pickling solution, neutralize pickling at 70°C for 6 min → add 1% saponifier, soap at 90°C for 6 min → wash with water at 80°C for 6 min → wash with water at 70°C for 6 min → wash with water at 40°C 6min.

Embodiment 3

[0056] The post-processing steps provided by the present invention specifically include:

[0057] Wash with water at 60°C for 6 min → wash with water at 70°C for 6 min → add 1.5% pickling solution, neutralize and pickle at 70°C for 6 min → add 0.8% saponifier, soap at 90°C for 6 min → wash with water at 40°C for 6 min.

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Abstract

The invention belongs to the technical field of cotton knitting dyeing technology, and in particular relates to a reactive dye dyeing post-treatment process, wherein the dark dyeing post-treatment process includes: 60±10°C water washing for 6 minutes → 70±10°C water washing for 6 minutes → 70±10°C neutralization Pickling 6min→90±10℃soaping 6min→80±10℃washing 6min→70±10℃washing 6min→40±10℃washing 6min→emulsification; post-treatment process of light dyeing includes: 60±10℃washing 6min→ Wash with water at 70±10°C for 6 minutes → neutralize and pickle at 70±10°C for 6 minutes → soap at 90±10°C for 6 minutes → wash with water at 40±10°C for 6 minutes. The process can reduce the number of washings and the washing time, thereby achieving the effect of reducing energy consumption; through research, discussion and practice, the invention further reduces the energy consumption of cotton knitted fabrics after dyeing with reactive dyes on the basis of conventional processing.

Description

technical field [0001] The invention belongs to the technical field of cotton knitting dyeing technology, and particularly relates to a dyeing post-processing technology of reactive dyes. Background technique [0002] Printing and dyeing is a three-high industry with high energy consumption, high water consumption and high pollution. Its annual wastewater discharge accounts for about 14% of the national industrial wastewater discharge, which shows that its water consumption accounts for a large proportion. In recent years, with the shortage of water resources and rising prices, and the improvement of water and drainage management and control requirements, the situation of water use in printing and dyeing enterprises has become increasingly serious. Industrial water use is in urgent need of refined management. Printing and dyeing production requires a large amount of water. In addition to the water used in the dyeing process, the main water is also used in various washing li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/02D06P5/04D06P1/38D06P3/66
CPCD06P5/02D06P5/04D06P1/38D06P3/66
Inventor 刘克煜郝丽红杨为东解珍香于希超
Owner QINGDAO JIFA GROUP
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