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A kind of white ink pretreatment liquid and preparation method thereof, direct-injection digital printing process

A technology of pretreatment liquid and white ink, which is applied in dyeing, textiles and papermaking, etc., can solve the problems of insufficient inhibition, hiding power not meeting people's consumption needs, reducing the adhesion of white paint direct-jet ink, etc., to achieve good Dispersion stability, sharp and clear lines, and broadened application range

Active Publication Date: 2021-07-27
ZHUHAI HUACAI PRINTING SUPPLIES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing dark textile pretreatment liquids on the market are applied to white paint direct-injection inks, and there are the following problems: these pre-treatment liquids have insufficient inhibitory effect on the penetration of white paint direct-injection inks, resulting in the curing of white paint direct-injection inks The final covering power is far from meeting people's consumption needs
In addition, these pretreatment liquids all have the defect of significantly reducing the adhesion of white paint direct-jet inks on dark textiles

Method used

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  • A kind of white ink pretreatment liquid and preparation method thereof, direct-injection digital printing process
  • A kind of white ink pretreatment liquid and preparation method thereof, direct-injection digital printing process
  • A kind of white ink pretreatment liquid and preparation method thereof, direct-injection digital printing process

Examples

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preparation example Construction

[0037] The present invention also provides a method of preparing a pretreatment liquid as described above comprising the steps of: put deionized water, wetting defoamer, fungicide, dry inhibitor, multivalent alkali earth metal salt into the material machine In 300 ~ 400R / min, stirring is mixed for 20 to 30 minutes to mix uniform; then the cationic nose silica, cationic or nonionic adhesive and cationic media, stirred at 400 ~ 500R / min, 20 ~ 30min is mixed uniform; after stirring while stirring at 300 to 400 r / min, stirring is slowly added dropwise, stirring is mixed uniform; mixing mixed with stirring mixing using 300 ~ 500 mesh filter cloth, The pretreatment is obtained.

[0038] The present invention also provides a direct injection digital printing process using the pretreatment liquid as described above, which includes the following steps:

[0039] S1, filthly formulate the pretreatment liquid in the sprayer, shake the pretreatment liquid; set the sprayer in a region whe...

Embodiment 1

[0044] A white ink pretreatment liquid comprising the following components according to the mass sharing:

[0045] Cationic colloidal silica 1.5 parts of cationic modified acrylate copolymer 3.5 parts

[0046] 6.5 parts of polyethylene glycol 4.5 parts

[0047] Trimethyl ammonium tetramethyl ammonium trimethyl phthallium

[0048] PROXEL GXL 0.1 SP3309 0.4

[0049] Deionized water 77.5 copies.

[0050] The preparation method of the white ink pretreatment liquid is as follows: The formulation amount of deionized water, wetting defoamer, bactericide, dry inhibitor, and multivalent alkali earth metal salt are sequentially put into the material machine, stirred at 300 r / min for 20 min It is mixed; then the cationic colloidal silica, cationic or nonionic adhesive and cationic media is sequentially put into the cationic media, and stirred at 300 r / min to mix uniform; at 300R / min speed down, slowly drop slowly After the oozing agent, stirred for 30 min to mix well; mixed with stirri...

Embodiment 2

[0057] A white ink pretreatment liquid comprising the following components according to the mass sharing:

[0058] Cationic colloidal silica 2.5 parts of trimethylcyl ammonium chloride modification starch 4.5 parts

[0059] 5.5 copies of polyethest alkaline earth magnesium salt 3.5 parts

[0060] 1.5 parts of vinylpyrrolidone acetate

[0061] BIT-20 0.1 Wetting Agent 104 0.5 parts

[0062] 77.4 deionized water.

[0063] The preparation method of the present embodiment and the direct injection digital printing process are similar to those of Example 1, which will not be described again here.

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Abstract

The invention discloses a white ink pretreatment liquid, a preparation method thereof, and a direct-injection digital printing process, belonging to the technical field of textile digital printing. The pretreatment solution includes the following components: 1-5 parts of cationic colloidal silica, 3-7 parts of binder, 2-6 parts of drying inhibitor, 3-8 parts of polyvalent alkaline earth metal salt, anti-bleeding 3-8 parts of agent, 1-5 parts of cationic mordant, 0.1-0.5 parts of fungicide, 0.1-0.5 parts of wetting and defoaming agent, 60-80 parts of deionized water. Put the above materials into the material machine in order, stir them evenly, and then filter to get the product. The pretreatment liquid has good dispersion stability, very uniform coating during use, and strong adhesion, which can inhibit the bleeding of white paint direct-jet ink on the surface of dark fabrics, and can effectively improve the white paint direct-jet ink on the surface of dark fabrics. The hiding power and adhesion on dark fabrics greatly broaden the scope of application of white paint direct-jet inks.

Description

Technical field [0001] The present invention relates to the field of textile digital printing technology, and more particularly to a white ink pretreatment liquid for white coating direct ink, and a preparation method thereof, a direct injection digital printing process. Background technique [0002] Inkjet printing is a new technique for textile printing and dyeing processing, including multi-disciplines such as computer, information, new materials, and fine chemicals. It has the advantages of high printing, flexible, non-dyed and auxiliary waste. However, in the past, textile inkjet printing is mainly for white fabrics. In recent years, with the increase in non-white fabric printed, the demand for white coating direct inkjets is getting bigger and larger, and is one of the important colors in textile inkjet printing. . [0003] The white coating direct ink ink is directly printed on the dark fabric, and the ink penetrates into the back of the textile, resulting in a significant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/673D06P1/52D06P1/613D06P1/653D06P1/66D06P1/44D06P5/30D06P1/48D06P1/651D06P1/642D06P1/62
CPCD06P1/445D06P1/48D06P1/5228D06P1/5242D06P1/525D06P1/6138D06P1/625D06P1/6426D06P1/65118D06P1/65125D06P1/65131D06P1/6533D06P1/66D06P1/6735D06P1/67383D06P5/30
Inventor 张定涛
Owner ZHUHAI HUACAI PRINTING SUPPLIES LTD
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