Disperse/reactive dye modification one-bath dyeing technology for polyester-cotton/viscose fabric

A technology of reactive dyes and fabrics, applied in the field of textile printing and dyeing, can solve the problems of affecting the environment, difficulty in dyeing, color fastness, and energy consumption.

Inactive Publication Date: 2012-07-18
绍兴董氏纺织印染技术开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, many printing and dyeing workers have developed the disperse / reactive one-bath dip-dyeing process for polyester-cotton fabrics. Most of them seek moderate and harmonious contradictions in the dyeing performance of the two dyes, and there are still dye hydrolysis, difficulty in dyeing depth, and staining. The problem of fastness, there is a need to use a lot of salt, alkali, and high temperature dyeing, which consumes capital and energy and affects the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Implementation example. 1. Use modification and one-bath two-step dyeing. (no salt and no alkali)

[0013] The fabric is treated with color media and other modifiers 3~5g / L→two dyes + half of the dye guide agent 3~5g / L→heat up for 2min and keep at 80°C for 30→add the remaining dye guide agent and heat up at 100°C for 30min →Water washing→Soap washing→Water washing→Fixing and setting.

[0014]

Embodiment 2

[0015] Implementation example. 2. Modification and one-bath two-step dyeing. (No salt and no alkali, initial or midway application of cross-linking agent)

[0016] The fabric is treated with color media and other modifiers 3~5g / L→two dyes + half of the dye guide agent 3~5g / L→heat up for 2min and keep at 80°C for 30→add the remaining dye guide agent and heat up at 100°C for 30min →Water washing→Soap washing→Water washing→Fixing and setting.

[0017]

Embodiment 3

[0018] Implementation example. 3. Using modification and one-bath two-step dyeing. (Salt-free and low-alkali, primary dyeing plus PH slip agent 2g / L)

[0019] The fabric is treated with color media and other modifiers 3~5g / L→two kinds of dyes + half of the dye guide agent 3~5g / L+PH slip agent→heating for 2min and keeping at 80°C for 30min→add the remaining dye guide agent Heating at 100°C for 30 minutes→washing→soaping→washing→fixing and setting.

[0020]

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PUM

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Abstract

The invention belongs to the technical field of textile printing and dyeing and in particular relates to a disperse / reactive dye modification one-bath dyeing technology for polyester-cotton / viscose fabric. The fabric is modified through color media or other modifiers, environment-friendly carriers are added into two disperse / reactive dye solutions, and a salt-free alkali-free or salt-free low-alkali normal temperature dyeing technology is implemented by using a one-bath two-step method. The technology has the advantages of simple process, convenience for operation and short dyeing time, a great amount of salt and alkali can be saved, energy sources are saved, and cost is reduced. By respectively adding a cross bond agent or a pH slippage agent or a small quantity of alkali agents into a dye bath, requirements for high fixation rate and high color fastness are met, and the technology is substantively changed and improved obviously by employing dye bath. Therefore, the technology has high social and economic benefits and a broad prospect.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a one-bath dyeing technology for polyester / cotton / viscose fabric modified with disperse / reactive dyes. Background technique [0002] Polyester-cotton / viscose fabrics are a general category of textile products. Generally, two dyes are used for dyeing. Disperse and reactive dyes are the main dyes for polyester-cotton / viscose fabrics. They are used to dye polyester and cellulose fibers respectively. The dyeing performance and process conditions of the two dyes are quite different, and most of them adopt the conventional dyeing process, that is, dyeing polyester with disperse dyes first, and then over-dyeing cotton with reactive dyes. The whole dyeing process takes a long time, low processing efficiency, water consumption, energy consumption and sewage discharge large. [0003] With the requirements of the government's environmental protection policy,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/872D06P1/44
Inventor 董建圆
Owner 绍兴董氏纺织印染技术开发中心
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