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Acidic color-fixing agent and preparation method thereof

An acid fixing agent and modification technology, applied in the direction of dyeing, textile and paper making, etc., can solve the problems such as the decrease of color brightness of dyed fabrics, the unlasting effect of fixing color, the hard feeling of fibers, etc., and achieve good pH value control. ability, good performance and storage stability, and the effect of improving washing fastness

Active Publication Date: 2020-01-17
多恩生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main problems of the existing acidic color fixing agents are: on the one hand, the color fixing agents used in many fabrics have a lot of unsatisfactory color fixing effects on the dyed fabrics, and the color fixing effects are not long-lasting
It has a certain color fixing effect, but its pH value is not easy to control, and it also contains formaldehyde, which is not conducive to its application
[0006] Chinese patent application CN 103497286 A discloses a preparation method of an environment-friendly acid dye fixing agent. The fixing agent is mixed with dimethylamine aqueous solution, epichlorohydrin solution and butyl acrylate, and then potassium persulfate solution is added in the It is prepared by reaction under certain conditions. Although the environmental-friendly acid dye color fixing agent, the color fixing effect needs to be improved. At the same time, it will cause the fiber to feel hard, the color brightness of the dyed fabric will decrease, and the color light will change.
In addition, it needs to add acid substances such as acetic acid to adjust the acid during the application process, which is not conducive to its application
[0007] It can be seen that the technical problems urgently needed to be solved by the color-fixing agent in the prior art are mainly problems such as unsatisfactory color-fixing effect, toxic and harmful components, which are not conducive to the use in clothing dyes, and difficult pH control.

Method used

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  • Acidic color-fixing agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] In this embodiment, the acidic color-fixing agent, in parts by weight, includes the following components: 15 parts of polyethyleneimine, 70 parts of modified polyacrylic acid, 15 parts of sodium citrate, salicylic acid 10 parts of sodium, 3 parts of sodium laureth sulfate, 9 parts of sodium stearate, and 5 parts of sodium phenolsulfonate.

[0042] In this embodiment, the raw materials for the preparation of the modified polyacrylamide include: 20 parts of methacrylic acid, 3 parts of sodium 2-acrylamido-2 methyl propane sulfonate, and 0.07 parts of sodium bisulfite in parts by weight. , 0.08 parts of ammonium persulfate, 0.015 parts of azobisisobutylimidazoline hydrochloride, 6 parts of dispersant, 35 parts of ammonium sulfate, and 85 parts of water.

[0043] Preparation of dispersant:

[0044] Selected raw materials: in parts by weight, the raw materials for the preparation of the dispersant include: 6 parts of methacrylic acid, 94 parts of water, and 0.03 parts of a...

Embodiment 2

[0051] In this embodiment, the acidic color-fixing agent, in parts by weight, includes the following components: 10 parts of polyethyleneimine, 60 parts of modified polyacrylic acid, 10 parts of sodium citrate, salicylic acid 5 parts sodium, 1 part sodium laureth sulfate, 2 parts sodium stearate, 1 part sodium phenolsulfonate.

[0052] In this embodiment, the raw materials for the preparation of the modified polyacrylamide include: 10 parts of methacrylic acid, 1 part of sodium 2-acrylamido-2-methylpropanesulfonate, and 0.1 part of sodium bisulfite in parts by weight. , 0.1 part of ammonium persulfate, 0.01 part of azobisisobutylimidazoline hydrochloride, 5 parts of dispersant, 30 parts of ammonium sulfate, and 80 parts of water.

[0053] Preparation of dispersant:

[0054] Selected raw materials: in parts by weight, the raw materials for the preparation of the dispersant include: 5 parts of methacrylic acid, 95 parts of water, and 0.02 parts of azobisisobutylimidazoline hyd...

Embodiment 3

[0061] In this embodiment, the acidic color-fixing agent, in parts by weight, includes the following components: 20 parts of polyethyleneimine, 90 parts of modified polyacrylic acid, 20 parts of sodium citrate, salicylic acid 15 parts of sodium, 5 parts of sodium laureth sulfate, 10 parts of sodium stearate, 6 parts of sodium phenolsulfonate.

[0062] In this example, the raw materials for the preparation of the modified polyacrylamide include: 30 parts of methacrylic acid, 5 parts of sodium 2-acrylamido-2-methylpropanesulfonate, and 0.05 parts of sodium bisulfite in parts by weight. , 0.05 parts of ammonium persulfate, 0.02 parts of azobisisobutylimidazoline hydrochloride, 10 parts of dispersant, 40 parts of ammonium sulfate, and 90 parts of water.

[0063] Preparation of dispersant:

[0064] Selected raw materials: in parts by weight, the raw materials for the preparation of the dispersant include: 10 parts of methacrylic acid, 90 parts of water, and 0.05 parts of azobisis...

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Abstract

The invention belongs to the field of dye color-fixing agents, and particularly relates to an acidic color-fixing agent and a preparation method thereof. The acidic color-fixing agent comprises polyethyleneimine, modified polyacrylic acid, sodium citrate, sodium salicylate, sodium laureth sulfate, sodium stearate and sodium phenolsulfonate; The preparation method is simple, the color-fixing agenthas a good color-fixing effect, contains no harmful substances such as formaldehyde, and has a good pH-control effect.

Description

technical field [0001] The invention belongs to the field of acid dye fixing agents, in particular to an acid fixing agent and a preparation method thereof. Background technique [0002] Dye is one of the most important raw materials in the textile industry. Dyeing and printing of textiles are inseparable from dyes. Dyeing fastness is one of the important quality indicators to measure the finished dyed products. High fastness. Color fastness depends largely on its chemical structure. In addition, the physical state of the dye on the fiber, the degree of dispersion, the combination of the dye and the fiber, the dyeing method and process conditions also have a great influence. In recent years, with the development of science and technology, dyeing and finishing technology has also been significantly improved. Due to the expansion of international textile trade and the improvement of people's living standards and environmental protection awareness, textiles are required to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P5/04D06P5/10D06P1/39
CPCD06P5/08D06P5/04D06P5/10D06P1/39
Inventor 苏宇
Owner 多恩生物科技有限公司
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