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Preparation method for organic-inorganic composite printing thickener

An inorganic thickener and composite printing technology, which is applied in the field of textile printing, can solve the problems of increased printing cost, limited application, high price, etc., and achieves the effects of good compatibility, excellent salt resistance and low price

Active Publication Date: 2015-09-23
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the thickening performance of inorganic thickeners cannot meet the requirements of textile printing technology, its application in textile printing industry is limited.
[0004] Polyacrylic acid synthetic thickener has the characteristics of strong paste-forming ability, good washability, and good hand feeling of printed fabrics. It is widely used in the field of textile printing, but its high price increases the printing cost.

Method used

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  • Preparation method for organic-inorganic composite printing thickener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Add bentonite to the aqueous solution of sodium hexametaphosphate with a mass concentration of 50g / L, the mass ratio of bentonite to water is 1:50, after stirring for 10min, place the suspension in an ultrasonic oscillator, at 100W ultrasonic power , ultrasonically oscillate for 2 hours, and after standing for 30 minutes naturally, take the upper suspension and centrifuge, wash with distilled water for 3 times, dry at 80°C, and grind through a 200-mesh sieve to obtain purified bentonite powder;

[0024] (2) Put 2g of purified bentonite and 50mL of toluene solution in a 250mL round-bottomed flask, ultrasonicate for 30min, and fully homogenize; L of dimercaptosuccinic acid solution, and then add the dimercaptosuccinic acid solution dropwise to the above-mentioned bentonite suspension, the ratio of dimercaptosuccinic acid to bentonite mass is 1:1. Stir for 24 hours, after the reaction is over, add ethyl acetate to the solution, centrifuge, wash the precipitate with dis...

Embodiment 2

[0029] (1) Add attapulgite to the sodium hexametaphosphate aqueous solution with a mass concentration of 80g / L, the mass ratio of attapulgite to water is 1:100, after stirring for 10min, place the suspension in an ultrasonic oscillator, Under the ultrasonic power of 250W, ultrasonically oscillate for 1 hour, after standing still for 30 minutes, take the upper suspension and centrifuge, wash 5 times with distilled water, dry at 100°C, grind through a 200-mesh sieve, and obtain purified attapulgite powder;

[0030] (2) Put 2g of purified attapulgite powder and 100mL xylene solution in a 250mL round-bottomed flask, ultrasonicate for 60min, and fully homogenize; dissolve dimercaptosuccinic acid in dimethyl sulfoxide solution, and prepare Become the dimercaptosuccinic acid solution of mass concentration 2g / L, then dimercaptosuccinic acid solution is added drop-wise in above-mentioned attapulgite suspension, the ratio of dimercaptosuccinic acid and attapulgite powder mass is 3: 1. A...

Embodiment 3

[0035] (1) Add the kaolin powder into the sodium hexametaphosphate aqueous solution with a mass concentration of 60g / L, the mass ratio of the kaolin powder to water is 1:60, after stirring for 10min, place the suspension in an ultrasonic oscillator, Under the ultrasonic power of 150W, ultrasonically oscillate for 1.5h, after standing still for 30min, take the upper suspension and centrifuge, wash with distilled water 4 times, dry at 90°C, grind through a 200-mesh sieve to obtain purified kaolin powder;

[0036] (2) Put 2g of purified kaolin powder and 60mL of toluene solution in a 250mL round-bottomed flask, ultrasonicate for 50min, and fully homogenize; dissolve dimercaptosuccinic acid in dimethyl sulfoxide solution, and make a mass concentration 1.5g / L dimercaptosuccinic acid solution, and then the dimercaptosuccinic acid solution is added dropwise in the above-mentioned kaolin suspension, the ratio of dimercaptosuccinic acid to kaolin powder mass is 2.5:1, after the dropwise...

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Abstract

The invention relates to a preparation method for organic-inorganic composite printing thickener. The method comprises the steps that firstly, purification and surface carboxylation are performed on inorganic thickener powder which is low in cost; secondly, in the process of polymerization preparation of polyacrylic thickener by means of inverse emulsion, surface-carboxylation inorganic thickener is added to prepare the organic-inorganic composite printing thickener. According to the organic-inorganic composite printing thickener obtained by the preparation method, not only is the cost low, but also the thickening performance and salt-resistance performance are excellent.

Description

technical field [0001] The invention relates to the field of textile printing, in particular to a preparation method of an organic-inorganic composite printing thickener. Background technique [0002] In the textile printing process, in order to obtain a clear pattern, in addition to the necessary chemicals, an appropriate thickener must be added to the printing paste to increase the viscosity of the printing paste, reduce its fluidity, and prevent the dye from bleeding . The performance of printing thickener directly affects the color fastness, feel and color yield of printed products. The earliest printing thickeners used were mainly natural starch and sodium alginate. Due to the difficulty in pulping of natural starch, the washability of the paste after printing is poor; and the price of sodium alginate is high, and the temperature of paste making is too high to easily cause molecular chains. degradation. Therefore, in the printing industry, it is urgent to select a th...

Claims

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Application Information

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IPC IPC(8): D06P1/673D06P1/52
Inventor 彭勇刚周永生汪媛朱孝霖纪俊玲万怀新
Owner CHANGZHOU UNIV