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A pretreatment solution for direct-injection polyester with disperse ink and direct-injection digital printing process

A technology of pretreatment liquid and disperse ink, which is applied in textiles, papermaking, dyeing, etc., and can solve the problems of high price and high cost of pretreatment agent

Active Publication Date: 2019-03-22
深圳市墨库图文技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of pretreatment agent produced by foreign companies is high and the price is expensive
At present, disperse dye inks are mostly used for inkjet printing of polyester fabrics. At present, the research of domestic ink manufacturers on the inkjet printing pretreatment process of polyester fabrics is mostly concentrated on pigment inks, and disperse dye inks are used for the inkjet printing pretreatment process of polyester fabrics. There are few studies, but it is very necessary to provide a pretreatment solution for direct injection of polyester fabrics with disperse dye inks

Method used

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  • A pretreatment solution for direct-injection polyester with disperse ink and direct-injection digital printing process
  • A pretreatment solution for direct-injection polyester with disperse ink and direct-injection digital printing process
  • A pretreatment solution for direct-injection polyester with disperse ink and direct-injection digital printing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Digitally print polyester fabrics by following these steps:

[0046] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.3 parts by mass of polyacrylic acid polymer material, the polyacrylic acid polymer material in this embodiment is sodium polyacrylate, 9 parts by mass of anhydrous Sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, 87.7 parts by mass of deionized water, a viscosity of 150mPa·s, and a pH of 4.5;

[0047] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a surplus rate of 85wt%, and then dry it at 90°C for 1.5min;

[0048] (3) Use the digital printing machine to directly spray the drawing pattern with dispersing ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;

[0049] (4) High-temperature steaming and baking, the baking temperature is 180°C, and the baking time is 7 minutes.

[0050] (5) Post-washin...

Embodiment 2

[0058] Digitally print polyester fabrics by following these steps:

[0059] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.5 parts by mass of polyacrylic acid polymer material, the polyacrylic acid polymer material in this embodiment includes sodium polyacrylate, and the polyacrylic acid polymer material is high The molecular material also includes potassium polyacrylate, 9 parts by mass of anhydrous sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, and 87.5 parts by mass of deionized water, with a viscosity of 210 mPa·s and a pH of 4.5;

[0060] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a scrap rate of 85wt%, and then bake at 90°C for 1.5min;

[0061] (3) Use the digital printing machine to directly spray the drawing pattern and disperse ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;

[0062] (4) High-temper...

Embodiment 3

[0066] Digitally print polyester fabrics by following these steps:

[0067] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.2 parts by mass of sodium polyacrylate, 9 parts by mass of anhydrous sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, and 87.8 parts by mass of deionized water , the viscosity is 110mPa·s, and the pH is 4.5;

[0068] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a surplus rate of 60wt%, and then bake at 85°C for 1.5min;

[0069] (3) Use the digital printing machine to directly spray the drawing pattern and disperse ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;

[0070] (4) High-temperature steaming and baking, the baking temperature is 180°C, and the baking time is 7 minutes.

[0071] (5) Post-washing treatment: two washes with water at room temperature and then reduction cleaning, the red...

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Abstract

The invention discloses a pretreatment liquid for direct injection of polyester fiber through dispersive ink and a direct injection digital printing process. The pretreatment liquid comprises, by mass, 0.2-5 parts of thickener, 1-10 parts of dispersion promoter, 2-5 parts of sodium chloride and 76-95 parts of water. The pretreatment liquid is semi-thick liquid, polyester fabric after going through impregnation or padding treatment liquid is dried, injection printing of dispersive dye ink is performed, high-temperature steaming baking is performed for color fixing after drying, water washing is performed, and then drying is performed to obtain a printing finished product. The pretreatment liquid is simple to prepare, convenient to use and suitable for direct injection process digital printing of all fabric high in polyester content, and the pretreatment liquid is easy to wash away after printing, so that hand feel of fabric is unaffected. Conventional heat transfer printing is replaced by the dispersive direct injection process, and transfer printing paper is not used, so that the direct injection digital printing process is environment-friendly. The pretreatment liquid can effectively prevent ink from spreading around on the polyester fabric, so that patters are ensured to be exquisite and lines are ensured to be clear after printing; color yield rate is high, printing is saturated and bright in color, and visual three-dimensional sense is high.

Description

technical field [0001] The invention relates to the technical field of digital printing, in particular to a pretreatment liquid for dispersing ink direct-injection polyester and a direct-injection digital printing process. Background technique [0002] Inkjet printing technology is a new high-precision printing technology with strong color expression. The fabric of the fabric has a great influence on the effect of inkjet printing. Since polyester itself is a hydrophobic fiber, there is a serious problem of ink seepage on polyester fabrics in digital printing using the direct injection process. Traditional printing raw paste is used for sizing to prevent The infiltration effect is poor and unstable, the wear resistance and light fastness are low, and the effective utilization rate of ink is low. Therefore, at present, digital printing on polyester fabrics can only use thermal transfer printing to print the printed pattern on thermal transfer paper, and then transfer it to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/50D06P1/52D06P1/653D06P1/673D06P3/34
CPCD06P1/50D06P1/525D06P1/6533D06P1/67358D06P1/67366D06P3/34
Inventor 岑健夏梁日军
Owner 深圳市墨库图文技术有限公司
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