Novel natural polysaccharide printing thicknener

Abstract

The invention discloses a novel natural polysaccharide printing thickener and belongs to the application field of dyeing auxiliaries. The novel natural polysaccharide printing thickener comprises the following components in parts by weight: 10-15 parts of Chinese yam starch, 0.4-0.8 part of astragalus polysaccharide, 0.1-0.3 part of lentinan, 0.1-0.2 part of Chinese yam polysaccharide and 2-4 parts of sodium alginate. By virtue of compounding of various natural polysaccharide components, the problems of poor hand feeling and poor color uniformity of starch paste which serves as printing paste can be solved, meanwhile the problems of poor color fastness and poor color stability of sodium alginate which serves as printing paste are solved, furthermore raw materials are natural, environmentally friendly, healthy and free from pollution, printing wastewater is reduced, and the printing efficiency and the printing stability are improved.

Description

Technical field: [0001] The invention belongs to the application field of dyeing auxiliaries, in particular to a novel natural polysaccharide printing thickener. Background technique: [0002] Natural polysaccharide thickener is composed of natural polysaccharide and its natural organisms. It has a long history and many varieties. It is suitable for almost all dye printing processes and has the advantage of low environmental pollution. However, compared with synthetic thickeners, its printing paste is not resistant to shearing and is easy to decline, and when it is used for pigment printing, it also has the problems of large dosage and high residue on the surface of the fabric, which affects the quality of printed fabrics. Hand feel and color fastness. Polysaccharide thickeners are suitable for most types of dye printing, but most are not suitable for reactive dye printing. This is because a large number of hydroxyl groups in the molecule will react with reactive dyes, cau...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art, by compounding yam starch, astragalus polysaccharide, lentinan, and yam polysaccharide in sodium alginate to obtain a pure natural polysaccharide printing thickener, so as to overcome sodium alginate as a printing thickener. The problem of low color fastness of thickeners and the problem of hard hand feeling of starch and its derivatives as printing thickeners

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