Reactive dye

A technology of reactive dyes and viscose fibers, which is applied in the field of textile dyes, can solve the problems of accelerated hydrolysis of reactive dyes, environmental pollution around printing and dyeing factories, unfavorable growth of surrounding trees and crops, etc., achieves good dyeing performance, is conducive to environmental protection, and saves The effect of production costs

Inactive Publication Date: 2019-04-16
YANCHENG INST OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After dyeing with reactive dyes, a large amount of alkaline sewage is generated, which seriously pollutes the surrounding environment of the printing and dyeing factory, which is not conducive to the growth of surrounding

Method used

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  • Reactive dye
  • Reactive dye
  • Reactive dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The present embodiment provides the printing method of formula (I) compound to cotton fabric:

[0014] The dosage of compound (I) is 2%, the dosage of 8% sodium alginate raw paste is 50%, and the rest is water. Hand platen printing, steaming, washing, soaping, washing.

[0015] The washing fastness of printed products is 4-5, and the rubbing fastness is 4-5.

Embodiment 2

[0017] The present embodiment provides the dyeing method of formula (I) compound to cotton fabric:

[0018] The dosage of compound (I) is 2.0% (o.w.f, to the weight of the fabric), the bath ratio is 1:50, dyeing at room temperature, 15g / L of Canadian sodium starch powder, 2°C / min heating to 100°C, keeping it warm for 60min, finishing dyeing, washing with water, Soap, wash.

[0019] The washing fastness of dyed products is grade 4-5, and the rubbing fastness is grade 4-5.

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PUM

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Abstract

The invention discloses a reactive dye. The reactive fluorescent dye is a compound with a following general formula (I) structure. The reactive dye has the advantages of simple preparation process, bright color, neutral fixation in dyeing process, no need to add an alkali agent and convenient use, and is an environmentally friendly reactive dye.

Description

technical field [0001] The invention relates to a textile dye, in particular to the preparation and application of a reactive dye. Background technique [0002] The characteristic of reactive dyes is that the molecule contains one or more active groups, which can chemically react with hydroxyl groups, amino groups and other groups in fibers such as cellulose and proteins under certain conditions, so that the dyes and fibers form covalent bonds And firmly combined, so that the washing fastness of the dye is greatly improved. In 1956, the British ICI company first produced reactive dyes for cotton containing dichloro-s-triazine active groups. Since then, countries around the world have successively developed and produced various types of reactive dyes. [0003] Generally, during the fixation process of reactive dyes, an alkaline agent (usually sodium carbonate, sometimes sodium hydroxide or sodium bicarbonate) needs to be added to facilitate the completion of the reaction. ...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/48D06P1/673D06P3/66
CPCD06P1/382D06P1/48D06P1/6735D06P3/663
Inventor 张艳张伟周彬王慧玲
Owner YANCHENG INST OF IND TECH
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