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A kind of active digital printing base paste and preparation method thereof

A technology of digital printing and primer, applied in dyeing, textile and papermaking, etc., can solve the problems of difficult cleaning of printing paste, high price of synthetic paste, poor coloring ability, etc., to improve K/S value and seepage rate, improve color fastness, high paste rate

Active Publication Date: 2022-03-04
广州强品新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The modified starch of the digital printing slurry in the prior art mostly adopts corn modified starch, wheat modified starch, etc., which has poor water retention, poor dyeing effect of dye ink, low color fixation rate, poor coloring ability, and shallow color yield. The printed pattern is not clear
The price of synthetic paste is high, and after digital printing, the excess printing paste is not easy to clean, resulting in stiff printed fabric and poor hand feeling

Method used

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  • A kind of active digital printing base paste and preparation method thereof
  • A kind of active digital printing base paste and preparation method thereof
  • A kind of active digital printing base paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0025] The weight percent composition formula of the active digital printing bottom slurry described in embodiment 1~5 is as shown in table 1;

[0026] The preparation method of the active digital printing bottom slurry described in embodiment 1~5, comprises the following steps:

[0027] (1) adding potato graft copolymerized starch and polyurethane acrylate into deionized water according to the weight ratio, mixing evenly and stirring, and standing for 8 to 18 hours to obtain the mixed raw paste;

[0028] (2) Add glycerol, triethylene glycol and sodium glycolate to the water in step (1), and stir evenly;

[0029] (3) Add sodium acetate, sodium silicate, and water-soluble cationic chitosan quaternary ammonium salt into step 2) and mix and stir evenly.

[0030] The weight ratio of glycerol, triethylene glycol and sodium glycolate described in Examples 1 to 5 is: glycerol: triethylene glycol: sodium glycolate=1:1:1.

[0031] Table 1

[0032]

Embodiment 6～16 and comparative example 1～8

[0034] The weight percent formula of the active digital printing base slurry described in Examples 6~9 and Comparative Examples 1~2 is as shown in Table 2; Embodiment 10~14 and the active digital printing base slurry described in Comparative Examples 3~5 The weight percentage composition formula of embodiment 15~16 and the active digital printing base slurry described in comparative example 6~7 are as shown in table 4, and embodiment 6~16 and contrast example 6~7 are as shown in table 3. The preparation method of the reactive digital printing base slurry of ratio 1-7 is the same as that of Examples 1-5.

[0035] Table 2

[0036]

[0037] table 3

[0038]

[0039] Table 4

[0040]

[0041]

Embodiment 17

[0043] Taking cotton knitted fabrics as an example, the application method of the active digital printing base paste in the fabrics of Examples 1-16 and Comparative Examples 1-7 is adopted. The method comprises the following steps: using the above-mentioned active printing base paste to process the fabric Printing, baking, steaming, washing, soaping and drying;

[0044] Wherein, the temperature of baking is 70-80°C, and the temperature of steaming is 105-115°C.

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Abstract

The invention discloses an active digital printing primer and a preparation method thereof. The digital printing primer comprises the following components in percentage by weight: 1.5-2.5% of potato grafted co-polymerized starch, 1-2% of polyurethane acrylate, 4-8% of auxiliary solvent, 1.5-3% of sodium acetate, 1.5-3% of sodium silicate, 0.72-2% of water-soluble cationic chitosan quaternary ammonium salt and the rest of water. The active base slurry has good stability and high paste rate through the combination of potato grafted co-polymerized starch and polyurethane acrylate, and can improve the K / S value and penetration rate of the printing slurry; at the same time, sodium acetate, silicon Sodium phosphate and water-soluble chitosan quaternary ammonium can significantly improve the color fastness of the system, especially the washing fastness.

Description

technical field [0001] The invention relates to a digital printing slurry, in particular to an active digital printing base slurry and a preparation method thereof. Background technique [0002] Digital printing primer is a chemical compound that is used as a medium for dyeing fibers in the process of digital textile printing and provides assistance for dyeing fibers. The digital printing base paste has a good absorption and accommodation effect on the ink, which can promote the combination of the dye and the fiber in a humid and hot state to obtain a specific printing effect. [0003] Reactive dyes are the main dyes for cellulose fiber dyeing and printing. They have the characteristics of bright colors, good hand feeling and simple process when used for printing. Reactive dyes can react with the covalent bonds of cellulose fibers, and the reaction process needs to be under certain alkaline conditions. [0004] Active digital printing base paste ingredients in the prior ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/48D06P1/52D06P1/651D06P1/653D06P1/673
CPCD06P1/48D06P1/5285D06P1/6533D06P1/67383D06P1/65118
Inventor 梁志光詹伟彬易宗应覃赵华
Owner 广州强品新材料有限公司
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