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Method for washing pure cotton cone yarn dyed with light-medium-color active macromolecular dye

A reactive dye, post-washing technology, applied in dyeing, textile and papermaking, etc., can solve the problems of high water consumption, energy and time, complicated washing process, etc., to save time, reduce consumption, and shorten the process.

Inactive Publication Date: 2015-11-18
ANHUI HUAMAO TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the whole dyeing process of reactive dyed yarn, especially in the dyeing process of cheese yarn reactive dyes, the post-washing process after dyeing is more complicated and consumes a lot of water, energy and time

Method used

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  • Method for washing pure cotton cone yarn dyed with light-medium-color active macromolecular dye

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) Put the pure cotton thread of GJ7.3*2KB package in the cheese dyeing vat, cover it and tighten the dyeing vat, and use the conventional one-step pretreatment process of boiling and bleaching to pre-treat the pure cotton cheese yarn and use medium-temperature reactive dyes Carry out dyeing (3BSN red 1.2%owf), during the dyeing process, add sodium bicarbonate and add desalting agent DYE1.0g / L at the same time, after the dyeing is finished, drain the residual liquid; then fill it with soft water, and wash it with running water for 5 minutes Drain the residual liquid;

[0033] (2) Fill the dyeing vat with soft water, add engineering soaping enzyme 5NPF1.0g / L, heat up to 60°C for 10 minutes and then discharge the sewage;

[0034] (3) Continue to add tap water to the dyeing vat, add organic acid ACR1.0g / L, neutralize and wash with water at 50°C for 10 minutes, and then drain;

[0035] (4) Inject soft water into the dyeing vat, add organic acid ACR0.5g / L and color-fixing ...

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PUM

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Abstract

The invention provides a method for washing pure cotton cone yarn dyed with light-medium-color active macromolecular dye. The pure cotton cone dyed yarn processed with the method has stable colors, and each fastness index meets or exceeds the national standard requirement. The method has the effects of energy saving, consumption reduction and productivity increase. The method comprises following steps: (1) a desalination process, (2) a soaping process, (3) a neutralization process (4), a dye fixing and softening process and (5) a water extruding and drying process, wherein the soaping process comprises process conditions as follows: a dye vat is filled with soft water, 1.0 g / L of engineered soaping enzyme 5NPF is added, the temperature is increased to 60 DEG C, and a residual liquid is drained after the heat preservation is performed for 10 min; the neutralization process comprises process conditions as follows: the dye vat is filled with tap water, 1.0 g / L of organic acid ACR is added, and a liquid is drained after neutralizing and washing are performed for 10 min at the temperature of 45 DEG C; the addition of 1.0 g / L of organic acid ACR means that the organic acid ACR is added in a ratio of 1.0 g / L with the volume of the dye vat serving as a standard.

Description

technical field [0001] The invention relates to a post-washing treatment method for light-color dyed with reactive dyes, in particular to a post-wash treatment method for pure cotton cheese yarns dyed with light-colored reactive dyes. Background technique [0002] After dyeing with reactive dyes, the surface of the yarn that has not been treated after washing and the solution in the pores between the fibers contain a large amount of impurities as follows: [0003] 1) In the dyeing process of reactive dyes, a large amount of neutral electrolyte-yuanming powder is added to improve the dye uptake rate; [0004] 2) In order to form a stable covalent bond between the dye and the cellulose fiber, add a large amount of color-fixing agent—soda ash; [0005] 3) Unfixed and hydrolyzed dyes; [0006] 4) Some other chemical auxiliaries added to change the dyeing state; [0007] 5) Some other impurities produced and remaining in the process of yarn processing. [0008] Due to the exi...

Claims

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Application Information

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IPC IPC(8): D06P5/02D06P5/04D06P1/38D06P3/66
Inventor 方长国关辉马列吴云云
Owner ANHUI HUAMAO TEXTILE
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