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Reactive dyeing post-treatment process

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

Active Publication Date: 2021-07-23
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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  • Reactive dyeing post-treatment process

Examples

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Effect test

Embodiment 1

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

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

Embodiment 2

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

[0045]Wash at 60°C for 6 minutes→wash at 70°C for 6 minutes→add 2.5% pickling solution, neutralize pickling at 70°C for 6 minutes→add 1% saponifier, wash at 90°C for 6 minutes→wash at 80°C for 6 minutes→wash at 70°C for 6 minutes→wash 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 minutes → wash with water at 70°C for 6 minutes → add 1.5% pickling solution, neutralize pickling at 70°C for 6 minutes → add 0.8% saponifier, soap wash at 90°C for 6 minutes → wash with water at 40°C for 6 minutes.

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Abstract

The invention belongs to the technical field of cotton knitting dyeing processes, and particularly relates to a reactive dyeing post-treatment process. A deep color dyeing post-treatment process comprises the following steps of water washing for 6 minutes at 60+ / -10 DEG C, water washing for 6 minutes at 70+ / -10 DEG C, neutralizing and acid pickling for 6 minutes at 70+ / -10 DEG C, soaping for 6 minutes at 90+ / -10 DEG C, water washing for 6 minutes at 80+ / -10 DEG C, water washing for 6 minutes at 70+ / -10 DEG C, water washing for 6 minutes at 40+ / -10 DEG C, and emulsifying; and a light color dyeing post-treatment process comprises the following steps of water washing for 6 minutes at 60+ / -10 DEG C, water washing for 6 minutes at 70+ / -10 DEG C, neutralizing and acid pickling for 6 minutes at 70+ / -10 DEG C, soaping for 6 minutes at 90+ / -10 DEG C, and water washing for 6 minutes at 40+ / -10 DEG C. According to the process, the water washing frequency and the water washing time can be reduced and shortened, so that the effect of reducing energy consumption is achieved; and through research, discussion and practice, the energy consumption of the reactive dyeing post-treatment of a cotton knitted fabric is further reduced on the basis of conventional processing.

Description

technical field [0001] The invention belongs to the technical field of cotton knitting dyeing technology, and in particular relates to a dyeing post-treatment 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, the water consumption situation of printing and dyeing enterprises has become increasingly serious. Industrial water urgently needs refined management. Printing and dyeing production consumes a lot of water. In addition to the water used in the dyeing process, the main water is also used in various washing processes in the pre-treatment and post-treatment processes. Therefore, to reduce water consu...

Claims

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Application Information

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Patent Type & Authority Applications(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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