Compound modified starch printing paste for polyester and preparation method of compound modified starch printing paste

Abstract

The invention relates to the technical field of textile dyeing and finishing, and particularly relates to compound modified starch printing paste for polyester and a preparation method of the compoundmodified starch printing paste. The compound modified starch printing paste for polyester is mainly prepared from the following raw materials in parts by mass: 30-50 parts of modified starch, 10-20 parts of hydroxyethyl tamarind gum, 10-20 parts of konjac gum, 5-15 parts of anhydrous sodium sulfate, 5-15 parts of sodium hexametaphosphate and 1-3 parts of sodium butyl p-hydroxybenzoate; the modified starch is prepared from phosphate starch and acetate starch in a ratio of (4 to 7) to (2 to 3). According to the compound modified starch printing paste for polyester and the preparation method ofthe compound modified starch printing paste provided by the invention, the compatibility is reasonable, and the preparation method is simple; the dry rubbing fastness of the obtained compound modifiedstarch printing paste for polyester is at level 5 while the wet rubbing fastness reaches level 3, the paste separation rate is up to 93.08%, and the apparent color yield is 28.04, and the handfeel and water holding property are relatively good; with all performances better than existing sodium alginate paste, the compound modified starch printing paste for polyester can replace sodium alginate completely in the technical field of textile dyeing and finishing.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a compound modified starch printing paste for polyester and a preparation method thereof. Background technique [0002] Printing paste refers to a polymer compound that can thicken the color paste and can be dissolved in water to form a colloidal solution with a certain viscosity. Printing paste is the main component of printing color paste, which makes the color paste have a certain viscosity to prevent bleeding, and acts as a carrier and adhesion for dyes. Polyester fabric has the characteristics of strong and durable, good elasticity, not easy to deform, corrosion resistance, insulation, crispness, easy washing and quick drying, etc. It can be widely used in the manufacture of clothing and industrial products. Conventional polyester fabric printing generally uses high-concentration sodium alginate paste In the printing process, there are problems such as ...

AI Technical Summary

Problems solved by technology

Polyester fabric has the characteristics of strong and durable, good elasticity, not easy to deform, corrosion resistance, insulation, crispness, easy washing and quick drying, etc. It can be widely used in the manufacture of clothing and industrial products. Conventional polyester fabric printing generally uses high-concentration sodium alginate paste In the printing process, there are problems such as difficult washing of printing paste, large amount of use, high COD of wastewater, low color fixation rate of disperse dyes, poor color fastness, serious color sticking, high-efficiency soaping, and long process flow.

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