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Color fixing process at high temperature of reactive dyes printing

A reactive dye and high-temperature color-fixing technology, which is applied in dyeing, heating/cooling fabrics, textiles, and papermaking, can solve the problems of reactive dye printing high-temperature color-fixing technology, and increase the coloring rate and color fastness of products , Improve production efficiency, high color fixing temperature effect

Inactive Publication Date: 2010-06-09
天津三环纺织印染公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no public literature on the high-temperature color-fixing technology of reactive dye printing.

Method used

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  • Color fixing process at high temperature of reactive dyes printing
  • Color fixing process at high temperature of reactive dyes printing
  • Color fixing process at high temperature of reactive dyes printing

Examples

Experimental program
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Embodiment

[0022] 1. Selection of dyes: K-type reactive dyes have good applicability to this process.

[0023] 2. Selection of padding aids: pretreat the pre-treated cloth before fabric printing, use soda ash, hygroscopic agent, yuanming powder substitute and whitening agent to pad and dry in the same bath, and when preparing the printing paste, do not Changing the formula of the color paste and the printing process, when the color is fixed at high temperature, due to the change of the surface of the fiber, the conditions for the interaction between the dye and the fiber have also changed, and the color fixing rate of the dye has been improved.

[0024] Padding liquid formula: ( / L)

[0025] Hygroscopic agent (using urea): 50g;

[0026] Soda ash: 20g;

[0027] Yuanming powder substitute: (using potassium chloride) 2.0g;

[0028] Whitening agent: (using VBL whitening agent) 1.5g;

[0029] The rest is water.

[0030] 3. Selection of process parameters: When K-type dyes are fixed at hig...

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Abstract

The invention discloses a color fixing process at high temperature of reactive dye printing, which adopts reactive dyes to print the preprocessed fabrics, and also comprises the following steps or procedures of whitening, dying, printing alkali chemicals and slurry, washing and drying and the like. The process is characterized by comprising the following steps: (1) preprocessing before the preprocessed fabric is printed, namely co-bathing, padding and drying by whitener with sodium carbonate, absorbent, anhydrous sodium sulphate substitute; and (2) fixing color to the printed fabric at high temperature of 160 DEG C for 3min. The color fixing process of the invention has the following beneficial effects: (1) the color fixing process at high temperature is adopted, thus water, vapor and energy consumption are reduced, waste emissions, such as dust, carbon dioxide and nitric oxide and the like are less, the energy is saved, the emission is reduced and the product cost is lowered; (2) the color fixing temperature is high, the color fixing time is short, the reactive dye is rapidly reacted with the fabric fiber, thus improving the stability of the production process, increasing product coloring rate and color fastness, and greatly improving the quality of the products; and (3) working hours are reduced, and the work efficiency is improved.

Description

(1) Technical field [0001] The invention relates to a fabric printing and dyeing process in the field of textiles, in particular to a high-temperature color-fixing process using reactive dye printing. (2) Background technology [0002] With the implementation of circular economy laws and regulations, saving energy and reducing pollution emissions will become a basic national policy of our country and a long-term strategic task. Due to the increasing contradiction between the rapid economic development and energy supply and demand, energy prices have been rising continuously in recent years, and the proportion of energy consumption costs and enterprise costs has increased year by year. In order to make the product price competitive, it is necessary to do everything possible to reduce the cost, and improving the process is one of the effective ways to save energy and reduce emissions. [0003] my country has used reactive dyes for printing for more than 50 years. Reactive dye...

Claims

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Application Information

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IPC IPC(8): D06M11/76D06M13/432D06P1/38D06C7/00
Inventor 赵春凤
Owner 天津三环纺织印染公司
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