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Accelerating agent and dyeing process using accelerating agent

A dyeing accelerator and process technology, which is applied in the field of dyeing process and dyeing agent, can solve the problems of increasing the burden of sewage treatment in printing and dyeing factories, reducing production efficiency, and increasing production costs, so as to reduce the burden of sewage treatment, improve production efficiency, and make the coloring firm Effect

Pending Publication Date: 2021-11-05
绍兴集宇化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of dyeing process needs to consume a lot of water, electricity and other resources in the operation process, which reduces production efficiency, increases the burden of sewage treatment in printing and dyeing factories, and increases production costs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The first aspect of this embodiment provides a dyeing accelerator, including 3 kinds of strong base and weak acid salts, respectively sodium carbonate, sodium metasilicate nonahydrate and sodium borate decahydrate, the sodium carbonate, silicon metasilicate nonahydrate The mass ratio between sodium borate and sodium borate decahydrate is 2:1:7.

[0046] A second aspect of this embodiment provides a dyeing process, comprising the following steps:

[0047] (1) Arrange the pretreated N / R knitting in the dye bath, heat the water in the dye bath to 50°C, add sodium sulfate and dye accelerator respectively, the sodium sulfate is sodium sulfate, and the sodium sulfate The addition of starch powder is 70g / L, and the addition of described dyeing accelerator is 3g / L, after insulation 5min, adds reactive dyestuff insulation 10min, then adds acid dyestuff insulation 5min, and the addition amount of described reactive dyestuff accounts for N / 0.5% of the R knitted fabric quality, t...

Embodiment 2

[0053] The first aspect of this embodiment provides a dyeing accelerator, including 3 kinds of strong base and weak acid salts, respectively sodium carbonate, sodium metasilicate nonahydrate and sodium borate decahydrate, the sodium carbonate, silicon metasilicate nonahydrate The mass ratio between sodium borate and sodium borate decahydrate is 2:1:7.

[0054] A second aspect of this embodiment provides a dyeing process, comprising the following steps:

[0055] (1) Arrange the pretreated N / R knitting in the dye bath, heat the water in the dye bath to 50°C, add sodium sulfate and dye accelerator respectively, the sodium sulfate is sodium sulfate, and the sodium sulfate The addition of starch powder is 70g / L, and the addition of described dyeing accelerator is 4g / L, after insulation 5min, adds reactive dyestuff insulation 10min, then adds acid dyestuff insulation 5min, the addition amount of described reactive dyestuff accounts for N / 0.5% of the R knitted fabric quality, the r...

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Abstract

The invention discloses an accelerating agent. The accelerating agent comprises n types of strong alkali and weak acid salts; the strong alkali and weak acid salts do not contain phosphorus element; and the pH value of an aqueous solution containing 1wt% of the accelerating agent is 10.5 + / -1.0, wherein n is greater than or equal to 1. According to the technical scheme, the accelerating agent is added into a dye bath, the pH value in the dye bath is stably controlled through the accelerating agent, the accelerating agent can be suitable for dyeing of reactive dye and dyeing of acid dye under the pH value, and when an N / R knitted fabric is dyed, the reactive dye and the acid dye can be used for dyeing in one bath, so that in the dyeing process, a large amount of water and electricity resources are saved, the production efficiency is improved, the sewage treatment burden of a printing and dyeing mill is relieved, and the production cost of dyeing and printing is reduced. The accelerating agent in the technical scheme does not contain the phosphorus element, belongs to an environment-friendly accelerating agent and conforms to the concept of green development, and the dyed N / R knitted fabric is uniform in color, firm in coloring, free of color difference and relatively high in quality.

Description

technical field [0001] The application belongs to the technical field of fabric dyeing and printing, and in particular relates to a dyeing agent and a dyeing process using the dyeing accelerator. Background technique [0002] Roman cloth is a kind of weft-knitted fabric. Roman cloth is four-way and one cycle. The cloth surface is not as smooth as ordinary double-sided cloth, and there are slightly slight and irregular horizontal stripes. The fabric has good horizontal and vertical elasticity, but its lateral stretch performance is not as good as that of double-sided fabric, and its moisture absorption is strong. It is used to make underwear, which is breathable, soft and comfortable to wear. Spandex Roman cloth is referred to as N / R knitted fabric for short. When dyeing N / R knitted fabric in the prior art, it needs to be dyed with reactive dyes and acid dyes in order to improve the color fastness and vividness of dyeing. In order to improve the color fastness of reactive d...

Claims

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Application Information

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IPC IPC(8): D06P1/673D06P3/24
CPCD06P1/6735D06P1/67383D06P3/24
Inventor 吴卫勇
Owner 绍兴集宇化工科技有限公司
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