Modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye

A technology of disperse dyes and reactive dyes, which is applied in the field of textile printing and dyeing, and can solve the problems of a large amount of sewage and failure to achieve exhaustion dyeing, etc.

Inactive Publication Date: 2012-07-25
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

[0009] Although the use of disperse dye microcapsules has the advantages of high-temperature, high-pressure, additive-free dyeing of polyester, no sewage, and one-bath dyeing with reactive dyes can achieve a good dyeing effect, but there is still a large amount of sewage generated after dyeing with water-soluble reactive dyes. To achieve exhaustive dyeing, it needs to add sodium starch powder to promote dyeing. Adding alkali agent for basic dyeing will still partially hydrolyze the dye. Therefore, the importance of clean production needs to be considered

Method used

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  • Modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye
  • Modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0016] 1. Fabric modification → Combination of disperse dye microcapsules with salt-free and alkali-free dyeing solutions

[0017] 2. Fabric modification → Combination of disperse dye microcapsules with salt-free, neutral / low alkali dyeing scheme

Embodiment 1

[0019] Implementation example 1. Dyeing light / medium color fabric modification → Combination of disperse dye microcapsules with salt-free and alkali-free dyeing schemes

[0020] Process flow: fabric modification 3~5 g color or other media modifiers → disperse dye microcapsules and NF Accord active (high temperature alkali-free dyes) ten PH stabilizer 2g → heating 95-100 ℃ for 10-20min → 130 Keep warm for 20-30 minutes at ℃ → cool down → wash in cold water → wash in hot water (or light soap) → wash in cold water.

[0021] Example 2. Dyeing of medium / dark colors Fabric modification → Combination of disperse dye microcapsules with salt-free and neutral dyeing solutions

[0022] Process flow: fabric modification 3~5 g color media or other modifiers → disperse dye microcapsules and low-alkali reactive dye + PH alkaline buffer 2g → heating at 60~80°C for 20~30min→130°C for 25 minutes ~30min→cool down→wash in cold water→(hot water or light soap)→wash in cold water.

Embodiment 3

[0023] Implementation example 3. Dyeing medium / dark color fabric modification → disperse dye microcapsules and salt-free, low-alkali dyeing scheme

[0024] Technological process: fabric modification 3~5 g color media or other modifiers → disperse dye microcapsules and high-temperature basic reactive dyes + PH alkaline buffer 2g → heat up at 60~80°C for 20~30min→130°C for heat preservation 25~30min→cool down→wash in cold water→wash in hot water (or light soap)→wash in cold water.

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Abstract

The invention belongs to the technical field of spinning dying and particularly relates to a modified one-bath dyeing technology of polyester/rayon fabric dispersed microcapsule/active dye. The dispersed microcapsule slow release dacron assistant-free dyeing process and the fabric modified salt-free and alkali-free dying process are combined for replacing the traditional dispersed/active two-bath method and the dispersed/active one-bath method dying process in recent years, the problems of low production efficiency, great water, electricity and steam consumption and great sewage discharge quantity of the two-bath method are solved, the problems of dye hydrolysis deep dying difficulty and poor dying color fastness of the one-bath method adopting a great number of dispersing agents, uniform dying agents, salt and alkali are solved, the active dying rate is improved, the reduction soaping is omitted, the dying period is shortened, the water is saved, the energy is saved, the sewage is reduced, the clean production is reached, and greater social and economic benefits are realized.

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 modified by dispersed microcapsules / reactive dyes for polyester / cotton / viscose fabrics. Background technique [0002] Polyester-cotton / viscose fabric is a general category of textile products, and two kinds of dyes are usually used for dyeing. Disperse and reactive dyes are the main dyes for multi-component fabric dyeing. They are used to dye polyester and cellulose fibers respectively. The dyeing properties and process conditions of these two dyes are quite different. Most of them use two-bath method to dye multi-component fabrics. , long dyeing process, low processing efficiency, large water and energy consumption and sewage discharge. [0003] The textile printing and dyeing industry has always been a large water user. The sewage discharge during the printing and dyeing process is large, which has a negative impact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/00D06P3/872D06P5/02
Inventor 董建圆
Owner 绍兴董氏纺织印染技术开发中心
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