A kind of cationic modifier for textile pretreatment and its synthetic method

A technology of cationic modifier and synthesis method, which is applied in the field of cationic modifier for textile pretreatment and its synthesis. It can solve the problems of small molecular weight, insufficient adsorption force of cloth surface, damage to fiber performance, etc., and achieve good uniformity and uniformity. The effect of good degree and good fastness

Active Publication Date: 2020-02-11
FIBER CHEM BIOLOGICAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, cationic modifiers on the market are divided into two categories. The first category is small molecule cationic modifiers, such as 3-chloro-2-hydroxypropyltrimethylammonium chloride. This type of product must be Add a large amount of alkali as a catalyst to react with the hydroxyl groups of cellulose fibers and change the charge of the fibers. However, this type of product cannot be attached to polyester fibers because of its small molecular we...

Method used

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  • A kind of cationic modifier for textile pretreatment and its synthetic method
  • A kind of cationic modifier for textile pretreatment and its synthetic method
  • A kind of cationic modifier for textile pretreatment and its synthetic method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the first step, add materials in the three-necked flask according to the following ratio:

[0034]

[0035] Start stirring, heat to 60°C and react for 8 hours, then cool down for use.

[0036] In the second step, add 250 parts of diphenylmethane diisocyanate into the three-necked flask, then add 100 parts of the product reacted in the first step, add the metal catalyst dibutyltin dilaurate and heat to 80°C to initiate the reaction. After 4 hours of reaction, Then add 100 parts of the reaction product of the first step, and continue to react for 4 hours.

[0037] The third step is to dilute and stir evenly according to the following ratio:

[0038]

Embodiment 2

[0040] In the first step, add materials in the three-necked flask according to the following ratio:

[0041]

[0042] Start stirring, heat to 80°C and react for 12 hours, then cool down for use.

[0043] In the second step, add 400 parts of toluene diisocyanate into the three-necked flask, then add 150 parts of the product of the first step reaction, add a metal catalyst and heat to 80°C to initiate the reaction, and after 4 hours of reaction, add 150 parts of the first step reaction product part, continue to react for 4 hours.

[0044] The third step is to dilute and stir evenly according to the following ratio:

[0045]

Embodiment 3

[0047] In the first step, add materials in the three-necked flask according to the following ratio:

[0048]

[0049] Start stirring, heat to 70°C and react for 5 hours, then cool down for use.

[0050] In the second step, add 250 parts of diphenylmethane diisocyanate and 150 parts of methyl isocyanate in the three-necked flask, then add 100 parts of the product of the first step reaction, add metal catalyst dibutyltin dilaurate and heat to 80 ℃ to initiate the reaction, after 4 hours of reaction, add 100 parts of the reaction product of the first step, and continue the reaction for 4 hours.

[0051] The third step is to dilute and stir evenly according to the following ratio:

[0052]

[0053] The application comparison report of the cationic modifier prepared in each of the above examples and the international leading Japanese product of the same kind, AROMAFIX PT, is as follows:

[0054] Test process:

[0055] ① Pretreatment

[0056] Cationic Modifier X%(O.W.F)

...

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PUM

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Abstract

The invention relates to a cationic modifier for pretreatment of textile products and a synthesizing method thereof. The cationic modifier comprises a component A, a component B and a component C, wherein the component A comprises the following components in parts by weight: 146 to 1460 parts of 3-chloro-2-hydroxypropyl-trimethylammonium chloride, 53 to 530 parts of polyhydric alcohols, 300 to 3000 parts of solvent, and 2.4 to 24 parts of alkaline catalyst; the component B is isocyanate; the component C is a thinner; the weight ratio of the component A to the component B to the component C is (200 to 2000):(250 to 2500):(1500 to 2400). Compared with the prior art, the cationic modifier has the advantages that the adding of alkaline for adjusting pH (potential of hydrogen) value in use is not needed; when the modified textile is dyed, the dyeing color is dark, the fastness is better, and the uniformity is better.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, and relates to a method for preparing a modifier for cationic surface modification of materials, in particular to a cationic modifier for textile pretreatment and a synthesis method thereof. Background technique [0002] Textile cationic modifier is mainly used for the pretreatment modification of textile fibers, which can make negatively charged fibers cationic, improve the dyeing rate of dyes and paints during dyeing, and have the effect of deepening and brightening, thus saving The amount of dye and paint used. [0003] Generally, the dyes and paints used in textile dyeing have negative charges, and the textiles are also negatively charged before modification, so when dyeing textiles, the utilization rate of dyes and paints will not be very high, especially in Yarn dyeing and pigment dyeing, when dyeing garments. In order to use dyes and coatings more efficiently and reduce water poll...

Claims

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Application Information

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IPC IPC(8): D06P1/44D06P1/52C08G18/28
CPCC08G18/2885D06P1/445D06P1/5285
Inventor 曾贱红方燕欧乐登路学刚郭雅丽
Owner FIBER CHEM BIOLOGICAL CHEM
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