A kind of disperse digital printing primer and preparation method thereof

A technology of digital printing and primer, which is applied in dyeing, textiles and papermaking, etc. It can solve the problems of single function of digital printing primer, high cost of sodium alginate, low starch price, etc., achieve bright color of printing and improve color fastness The effect of degree and pattern fullness

CN111472184BActive Publication Date: 2022-05-27广州强品新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-05-27

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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.
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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...

Examples

preparation example Construction

[0025] The preparation method of the reactive digital printing primer described in Embodiments 1-5 includes the following steps:

[0026] 1) Mix hydroxyethyl cellulose, sclerotiorum gum and locust bean gum evenly, add into 60°C water, stir evenly, and let stand to obtain a thickener solution;

[0027] 2) adding alkali agent, alkyl glycoside and cosolvent successively to the thickener to obtain the semi-finished product of printing primer;

[0028] 3) Add water again, stir evenly, and obtain the dispersed digital printing base slurry.

[0029] The alkaline agent of the embodiment of the present invention and the comparative example is composed of sodium carbonate and sodium trichloroacetate in a weight ratio of 1:0.8; the cosolvent is composed of diethylene glycol ether and thiodiglycol in a weight ratio of 2:1.