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Polyurethane composite reactive printing paste and preparation method thereof

A reactive printing and polyurethane-based technology, which is applied in the fields of textile chemistry and dyeing and finishing engineering, can solve the problems of modified thickeners such as hard hand feeling, poor salt resistance stability, and rising prices, and achieve soft hand feeling, low PVI value, and reduced The effect of printing costs

Active Publication Date: 2020-09-11
BEIJING CTA TEX CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, sodium alginate is still mainly used as the paste for reactive dye printing at home and abroad. With the development of printing screen technology and the improvement of people's demand, the performance of sodium alginate can no longer meet the market demand. and medical applications, so that the price continues to rise; therefore, thickeners are usually introduced to compound sodium alginate to improve the printing performance of sodium alginate and reduce costs. In recent years, research on thickeners has mainly focused on polyacrylic acid Thickener, modified guar gum, modified starch and modified cellulose, etc., but the results are unsatisfactory. The sodium polyacrylate thickener has poor salt resistance and stability, and the modified thickener feels hard. Environmental protection requirements are becoming increasingly stringent Under the premise of the development of low-cost, high-performance reactive printing paste has become an urgent problem to be solved in the printing and dyeing industry

Method used

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  • Polyurethane composite reactive printing paste and preparation method thereof
  • Polyurethane composite reactive printing paste and preparation method thereof
  • Polyurethane composite reactive printing paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The specific raw materials of the polyurethane compound reactive printing paste are: parts by mass, 40 parts of polyurethane thickener; 10 parts of carboxymethyl guar gum; 10 parts of tamarind gum; and 5 parts of sodium sulfate.

[0063] The polyurethane compound active printing paste of the present embodiment is prepared according to the following steps:

[0064] Put 10 parts of guar gum into a double-ribbon mixing mixer and stir, add 40 parts of polyurethane thickener and continue to stir for 20 minutes, add 10 parts of tamarind gum and 5 parts of sodium bicarbonate and continue to stir for 30 minutes to obtain a polyurethane compound paste.

Embodiment 2

[0066] The raw materials for synthesizing polyurethane composite reactive printing paste are specifically: parts by mass, 60 parts of polyurethane thickener; 15 parts of carboxymethyl guar gum; 20 parts of tamarind gum; and 10 parts of sodium sulfate.

[0067] The polyurethane compound active printing paste of the present embodiment is prepared according to the following steps:

[0068] Put 15 parts of guar gum into a double-ribbon mixing mixer and stir, add 60 parts of polyurethane thickener and continue to stir for 20 minutes, add 20 parts of tamarind gum and 10 parts of sodium bicarbonate and continue to stir for 30 minutes to obtain a polyurethane compound paste.

Embodiment 3

[0070] The specific raw materials for synthesizing polyurethane-based composite reactive printing paste are: parts by mass, 50 parts of polyurethane thickener; 27 parts of guar gum; and 8 parts of sodium sulfate.

[0071] The polyurethane compound active printing paste of the present embodiment is prepared according to the following steps:

[0072] Put 27 parts of guar gum into a double-ribbon mixing mixer and stir, add 50 parts of polyurethane thickener and continue to stir for 20 minutes, and 8 parts of sodium bicarbonate continue to stir for 30 minutes to obtain a polyurethane compound paste.

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Abstract

The invention provides a polyurethane composite reactive printing paste and a preparation method thereof. The polyurethane composite reactive printing paste contains the following components by mass of: 40-60 parts of polyurethane thickener, 20-35 parts of natural seed gum, and 5-10 parts of inorganic substances. The invention also discloses the molecular formula of polymer polyurethane suitable for reactive printing. After a large number of application tests, when the polyurethane composite reactive printing paste provided by the invention is applied to cotton reactive printing, not only doesthe printed fabric feel softer, which is more conducive to the finishing of the fabric feel style, and the apparent color yield of the printed fabric is high; and the extremely high paste forming rate of the composite paste greatly reduces the cost of printing and reduces waste emissions.

Description

technical field [0001] The invention belongs to the technical field of textile chemistry and dyeing and finishing engineering, and in particular relates to a polyurethane compound reactive printing paste and a preparation method thereof. Background technique [0002] Since the advent of reactive dyes, they have been favored by cotton printing due to their complete color spectrum. Most of the textile reactive printing still adopts the traditional screen printing process, including flat screen and rotary screen printing. Screen printing color paste is generally composed of dyes, additives and raw paste. Paste plays a key role in the formulation of screen printing paste. It controls the rheology, permeability and migration of printing paste. Except for dyes, paste is the most important factor determining printing quality. [0003] At present, sodium alginate is still mainly used as the paste for reactive dye printing at home and abroad. With the development of printing screen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/48D06P1/673D06P1/38D06P3/66
CPCD06P1/5285D06P1/48D06P1/67358D06P1/6735D06P1/38D06P3/66
Inventor 陈松陈震雷宋泽华李英超荣启龙高殿权侯志文杨勇
Owner BEIJING CTA TEX CHEM
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