Dyeing process of reactive dye

A reactive dye and process technology, applied in the field of dyeing process, can solve the problems of complex operation and uneven dyeing, and achieve the effect of simple operation, uniform dyeing, and reduced washing times

Inactive Publication Date: 2015-10-07
JIANGSU SHUANGYING TEXTILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Complex operation, prone to uneven dyeing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] The present embodiment provides a reactive dye dyeing process, comprising the following process steps:

[0018] (1) Pre-treatment process: water washing-acid washing, adjusting PH to neutral-preparing reactive dye solution. Adding hydrogen peroxide remover in the washing process can save washing times, water, time and energy.

[0019] (2) Dyeing: Put the dyed fabric into the dye vat, raise the temperature to 60°C, inject the reactive dye solution prepared in step (1), add leveling agent, and stir for 5-10 minutes. In the step (2), add 2.5-4% owf M-type reactive dyes, 0.4-0.8g / L leveling agent o-25, leveling agent o-25 can remove the dirt that the dye disperses and gathers on the fabric , improve detergency, reduce the electrostatic effect of fabrics. M-type dyes can obtain higher dyeing rate and fixation rate, and the dyeing depth is better.

[0020] (3) Accelerate dyeing: add 5-6g / L salt to promote dyeing, add in three times, add 1 / 5 salt for the first time, stir fo...

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PUM

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Abstract

The invention belongs to the technical field of dyeing processes and particularly provides a dyeing process of a reactive dye. The dyeing process of the reactive dye comprises the following steps of 1 pretreatment including water washing and acid pickling, 2 dyeing, 3 accelerating through salting, 4 fixation through calcined soda adding and 5 aftertreatment including two-time soap boiling, water washing and drying. The dyeing process of the reactive dye is simple in operation, even in dyeing and quick in dyeing and coloring, and an M-type dye can have higher dye-uptake rate and fixation rate, dyeing depth is better, water washing times are decreased, water resources are saved, production cost is reduced, and dyeing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of dyeing technology, and in particular relates to a reactive dye dyeing technology. Background technique [0002] Reactive dyes, also known as reactive dyes. It is a class of dyes that chemically react with fibers during dyeing. Such dye molecules contain groups that can chemically react with fibers. When dyeing, the dyes react with the fibers and form covalent bonds between them to form a whole, which improves the fastness to washing and rubbing. However, in order to achieve an accurate dyeing in the traditional reactive dyeing process, the dyeing process conditions must be designed on the basis of multiple experiments, such as dyeing temperature, dyeing accelerator, leveling agent dosage, color fixing agent dosage and color fixing PH value, bath Ratio, cloth speed, pump flow, dyeing time and so on. The operation is complex and prone to uneven dyeing. Contents of the invention [0003] The purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/44D06P1/673D06P5/10
Inventor 徐建龙
Owner JIANGSU SHUANGYING TEXTILE TECH
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