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Special emission-reducing deep dye agent for fiber dyeing

A technology for through-dyeing and fiber application in the fields of dyeing, textiles, and papermaking. It can solve the problems of non-through-dyeing and low color fastness of fibers, and achieve the effects of avoiding pollution, improving color fastness, and improving wearability.

Inactive Publication Date: 2012-08-01
HANGZHOU YONGGUANG TEXTILE AUXILIARIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing printing and dyeing industry, one is that the residual liquid after dyeing contains a large amount of unabsorbed dyes, which are all discharged as sewage or re-discharged through sewage treatment; Adsorbed on the fiber surface, resulting in low color fastness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: A kind of emission-reducing penetrating agent specially used for fiber dyeing, (weight ratio): containing 5-9% acrylic acid, 21-25% maleic anhydride, 10-14% soda ash, 4-6% sodium sulfite, and the remaining for water.

Embodiment 2

[0009] Example 2: On the basis of Example 1, the special emission-reducing penetrating agent for fiber dyeing contains 7% acrylic acid, 23% maleic anhydride, 12% soda ash, 5% sodium sulfite, and the rest is water.

Embodiment 3

[0010] Example 3: On the basis of Example 1, the special emission-reducing penetrating agent for fiber dyeing contains 5% acrylic acid, 21% maleic anhydride, 10% soda ash, 4% sodium sulfite, and the rest is water.

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PUM

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Abstract

The invention relates to a special emission-reducing deep dye agent which can reduce dye content in dyeing raffinate, achieve the purpose of reducing blowdown, greatly improve the fiber dyeing fastness and achieve the purpose of improving wearability. The deep dye agent contains 5-9% of acrylic acid, 21-25% of maleic anhydride, 10-14% of sodium carbonate, 4-6% of sodium sulfite and water in balancing amount. The deep dye agent has the advantages that the dye content in the dyeing raffinate is reduced, and the purpose of reducing blowdown is achieved; and the dye is promoted to permeate into the fiber, the color fastness is improved, the purpose of improving the wearability is achieved, and the environmental pollution is simultaneously avoided.

Description

technical field [0001] The invention relates to a special emission-reducing and penetrating agent for fiber dyeing, which can not only reduce the dye content in the dyeing residual liquid, achieve the purpose of reducing pollution discharge, but also greatly improve the dyeing fastness of fibers and improve the wearing performance, belonging to the manufacture of dyeing auxiliaries field. Background technique [0002] In the existing printing and dyeing industry, one is that the residual liquid after dyeing contains a large amount of unabsorbed dyes, which are all discharged as sewage or re-discharged through sewage treatment; Adsorbed on the fiber surface, resulting in low color fastness. In order to improve the color fastness, soaping or reduction cleaning is generally used to wash off part of the floating color on the surface to achieve the purpose of improving the color fastness. Contents of the invention [0003] Design purpose: to avoid the deficiencies in the back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/673
Inventor 徐晃
Owner HANGZHOU YONGGUANG TEXTILE AUXILIARIES