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Polyacrylic acid synthetic thickener for reactive dye printing of viscose fabric and preparation method and application of polyacrylic acid synthetic thickener

A technology for synthesizing thickeners and reactive dyes, which can be used in dyeing, textiles, and papermaking. It can solve the problems of insufficient silicone modification and achieve high color fastness to soaping, small viscosity changes, and dry resistance. The effect of high color fastness to rubbing

Active Publication Date: 2021-02-26
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN100418990C is obtained by mixing acrylic thickener and modified silicone linear body; Chinese patent application CN108677566A adopts modified silicone emulsion blending; Chinese patent application CN105735007A adopts blending hydrophilic silicone oil; the above improvement scheme is due to It is physical mixing, and the modification effect of silicone is not sufficient, which needs further improvement
[0004] Polyacrylic acid-based synthetic thickener is a paste that is widely used, but there are still some deficiencies in its use in reactive dye printing paste for viscose fabrics.

Method used

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  • Polyacrylic acid synthetic thickener for reactive dye printing of viscose fabric and preparation method and application of polyacrylic acid synthetic thickener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of the polyacrylic acid synthetic thickener of viscose fabric reactive dye printing, concrete method comprises the steps:

[0025] (1) Dissolve 1mL of methacrylic acid and 15g of starch in 300mL of deionized water, adjust the pH of the reaction solution to 10.5 with lye, and stir for reaction. Branched starch modified solution.

[0026] (2) Dissolve 1mL of methacrylic acid, 150mL of the methacrylic acid grafted starch modification solution prepared in step (1) and 2mL of 3-methacrylic acid propyl tris(trimethoxysilane) in 100mL of deionized water at the same time to prepare Monomer solution, 1.25g of ammonium persulfate was dissolved in 85mL of deionized water and configured as an initiator solution for later use; then, under stirring conditions, the temperature was controlled at 80°C, and the configured monomer solution and ammonium persulfate initiator solution were separately Add dropwise into a four-necked flask filled with 100 mL of deionize...

Embodiment 2

[0030] The preparation method of the polyacrylic acid synthetic thickener of viscose fabric reactive dye printing, concrete method comprises the steps:

[0031] (1) Dissolve 1mL of methacrylic acid and 10g of starch in 200mL of deionized water, adjust the pH value of the reaction solution to 10 with lye, and stir for reaction. The reaction temperature is 79°C, and the reaction time is 2h. Branched starch modified solution.

[0032] (2) Dissolve 1mL of methacrylic acid, 100mL of methacrylic acid grafted starch modification solution prepared in step (1) and 1mL of 3-methacrylic acid propyl tris(trimethoxysilane) in 100mL of deionized water at the same time to prepare Monomer solution, 1g of ammonium persulfate dissolved in 50mL of deionized water is configured as an initiator solution for later use; then under stirring conditions, the temperature is controlled at 79°C, and the configured monomer solution and ammonium persulfate initiator solution are dripped separately Add it t...

Embodiment 3

[0036] The preparation method of the polyacrylic acid synthetic thickener of viscose fabric reactive dye printing, concrete method comprises the steps:

[0037] (1) Dissolve 1mL of methacrylic acid and 20g of starch in deionized water, adjust the pH of the reaction solution to 11 with lye, and stir for reaction. The reaction temperature is 81°C, and the reaction time is 4h to obtain methacrylic acid graft Starch modified liquid.

[0038] (2) Dissolve 1mL of methacrylic acid, 200mL of the methacrylic acid grafted starch modification solution prepared in step (1) and 3mL of 3-methacrylic acid propyl tris(trimethoxysilane) in 100mL of deionized water at the same time to prepare For the monomer solution, 1.5g of ammonium persulfate was dissolved in 75mL of deionized water and configured as an initiator solution for later use; then, under stirring conditions, the temperature was controlled at 81°C, and the configured monomer solution and ammonium persulfate initiator solution were ...

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Abstract

The invention relates to a polyacrylic acid synthetic thickener for reactive dye printing of viscose fabric and a preparation method and application of the polyacrylic acid synthetic thickener. The thickener is prepared by the following steps: carrying out a grafting reaction on methacrylic acid and starch to obtain a methacrylic acid grafted starch modified solution, carrying out a polymerizationreaction on the methacrylic acid, the methacrylic acid grafted starch modified solution and 3-methacryloxypropyletris(trimethylsiloxy)silane to obtain a polyacrylic acid aqueous solution, and finallydistilling under reduced pressure conditions. The polyacrylic acid synthetic thickener prepared by the invention is used for reactive dye printing of the viscose fabric; the prepared printed fabric has the characteristics that a de-gelatinization rate is higher than 90%, the softness is good, the contour definition is high, the permeability is higher than 91%, and the color fastness to dry rubbing and the color fastness to soaping are high, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of emulsified paste, and in particular relates to a polyacrylic acid synthetic thickener for viscose fabric reactive dye printing and its preparation method and application. Background technique [0002] Printing paste refers to the polymer compound that acts as a thickener in the color paste, which can be dispersed in water to form a thick colloidal solution with a certain concentration. In the actual printing process of textiles, the paste is the carrier that transfers the dyes and chemicals in the printing color paste to the fabric, and is the main component of the printing color paste. Although there are many factors affecting the printing quality, the properties of the printing paste determine the final printing effect of the fabric to a large extent, and are the key factors affecting the printing effect. [0003] At present, anionic polyacrylate thickeners are widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/52D06P1/649D06P3/66C08F251/00C08F285/00C08F220/06C08F230/08
CPCD06P1/38D06P3/66D06P1/5257D06P1/6491C08F251/00C08F285/00C08F220/06C08F230/085
Inventor 彭雄义周凡雨刘仰硕董雄伟李强蔡亚君
Owner WUHAN TEXTILE UNIV
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