A kind of disperse digital printing primer and preparation method thereof

Abstract

The invention discloses a dispersed digital printing primer and a preparation method thereof. The digital printing primer comprises the following components in percentage by weight: thickener 1-6%, cosolvent 5-15%, alkyl glycoside 1 to 6%, 0.5 to 5% of alkali agent and 70 to 90% of water; the thickener includes hydroxyethyl cellulose, sclerotin and locust bean gum, and the sclerotinia, locust bean gum and The weight ratio of hydroxyethyl cellulose is hydroxyethyl cellulose, sclerotin and locust bean gum=0.5-3:0.5-3:1. In the present invention, by compounding hydroxyethyl cellulose, sclerotinia, and locust bean gum as a thickener, the color yield of the dispersed digital primer can be significantly improved, the K / S value is higher, and the printing outline is clear and uniform. Good dyeability and good penetration rate. Compared with fabrics prepared by ordinary processes, the printed fabrics processed by the dispersed digital printing slurry of the present invention have brighter printing colors and fuller patterns, and the color fastness can reach grade 4-5 due to the improved color quantity.

Description

technical field [0001] The invention relates to the technical field of digital printing, in particular to a dispersed digital printing primer and a preparation method thereof. Background technique [0002] Digital printing is printing using digital technology. Digital printing technology is a high-tech product that integrates machinery, computer, electronic information technology and is gradually formed with the continuous development of computer technology. The digital printing process is mainly divided into three parts: fabric pre-treatment, inkjet printing, and post-printing treatment; the pre-treatment of the fabric is divided into the configuration of slurry, fabric sizing, tenter drying and sealing preservation. Among them, the digital printing slurry It is used in pretreatment. At present, more than 50% of the printing inks in my country are disperse dye inks, which are used in the printing of chemical fiber fabrics such as polyester fibers. Non-ionic dyes in which pa...

AI Technical Summary

Problems solved by technology

Printing paste plays a thickening role in the slurry. The existing printing pastes mainly include polymer pastes such as sodium alginate and starch. Among them, sodium alginate paste has good permeability and good printing feel, but sodium alginate The cost is high and the supply is less and less; the price of starch is low, but the permeability is poor and the hand feel is poor; and the existing digital printing base has a single function. With the continuous improvement of printing and dyeing technology today, the single digital printing base has already It cannot meet the needs of the actual printing process; the traditional primer needs to be improved to meet the existing market demand

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