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Method for digital textile printing in wet state

A digital printing, wet state technology, applied in textiles, papermaking, dyeing and other directions, can solve the problems of weft bias, easy yellowing pretreatment liquid, energy, waste, etc. , the effect of reducing production costs

Inactive Publication Date: 2020-09-01
SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a method for digital printing of textiles in a wet state. The present invention can solve the problem of gray cloth weft skew, easy yellowing and pretreatment liquid and energy caused by the pretreatment method in the prior art. serious waste and other problems, and the digital printing products using this method are full and bright in color

Method used

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  • Method for digital textile printing in wet state
  • Method for digital textile printing in wet state
  • Method for digital textile printing in wet state

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Preparation of the pretreatment solution: first add 2% baking soda, 10% urea, 1% anti-staining salt S, and 0.3% sodium metasilicate into water and stir to dissolve to obtain a uniform mixed solution; continue Stir the above mixed solution, slowly add 3% sodium alginate, continue to stir for 1.5 hours, and let it stand for 2 hours to obtain the pretreatment working solution. The viscosity of the pretreatment working solution is 6000mPa·s, and the pH is 9.

[0031] (2) Squeegee treatment: Use a 100-mesh screen to squeegee the dry textiles with the pretreatment working liquid. The squeegee pressure is 5mV, and the squeegee speed is 20mm / s, and the pretreatment liquid is evenly sent to the screen. , evenly squeegee the pretreatment liquid on the textile, and the liquid carrying rate of the textile is 40.5%;

[0032] (3) Digitally print, dry, steam, and wash the wet textiles after pretreatment.

[0033] Use Datacolor 650 color measuring instrument to test and character...

Embodiment 2

[0042] (1) Preparation of pretreatment solution: first add 2.5% baking soda, 15% urea, 1.5% anti-staining salt S, and 0.5% sodium metasilicate into water and stir to dissolve to obtain a uniform mixed solution; continue Stir the above mixed solution, slowly add 2% methyl hydroxyethyl cellulose, continue to stir for 0.5 h, and let stand for 2 h to obtain the pretreatment working solution. The viscosity of the pretreatment working solution is 500mPa·s, and the pH is 8.

[0043] (2) Squeegee treatment: Squeeze the dry textiles with the pretreatment working liquid using a stencil with a mesh number of 80. The squeegee pressure is 5mV, and the squeegee speed is 22mm / s, and the pretreatment liquid is evenly sent to the stencil. , evenly squeegee the pretreatment liquid on the textile, and the liquid carrying rate of the textile is 35.5%;

[0044] (3) Digitally print the pretreated wet textiles directly, dry, steam, and wash, and compare the printing with conventional pretreated fab...

Embodiment 3

[0053] (1) Preparation of pretreatment solution: first add 4% baking soda, 20% urea, 2% anti-staining salt S, and 1% sodium metasilicate into water and stir to dissolve to obtain a uniform mixed solution; continue Stir the above mixed solution, slowly add 5% modified starch, continue to stir for 0.5h, and let stand for 2h to obtain the pretreatment working solution. The viscosity of the pretreatment working solution is 10000mPa·s, and the pH is 10.

[0054] (2) Squeegee treatment: Squeeze the dry textiles with the pretreatment working liquid using a screen with a mesh number of 90. The squeegee pressure is 1mV, and the squeegee speed is 50mm / s, and the pretreatment liquid is evenly sent to the screen. , evenly squeegee the pretreatment liquid on the textile, and the liquid carrying rate of the textile is 30%;

[0055] (3) Digitally print, dry, steam, and wash the wet textiles after pretreatment.

[0056] Use Datacolor 650 color measuring instrument to test and characterize t...

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Abstract

The invention belongs to the technical field of textile digital printing, and in particular relates to a method for digital textile printing in a wet state. The method comprises the following processsteps of preparation of a pretreatment working fluid; squeegee treatment of uniformly squeegeeing the pretreatment working fluid on the dry textile; and a printing treatment of directly digitally printing, drying, steaming and washing the wet textiles after the squeegee treatment without the operation of drying. The method for digital textile printing in the wet state can solve the problems of weft skew, yellowing, pretreatment liquid and energy waste caused by pretreatment using a tentering setting machine in the prior art, and the digital printing products using the method are full and bright in colors.

Description

technical field [0001] The invention belongs to the technical field of digital printing of textiles, in particular to a method for digital printing of textiles in a wet state. Background technique [0002] In recent years, in order to meet the market demand for small batches of printing orders, diversified varieties, and fast delivery, digital printing technology has developed rapidly. In order to obtain a better printing effect, the digital printing of textiles needs to pre-treat the textiles before printing, otherwise there will be shortcomings such as printing color difference, poor fineness, and not bright colors. [0003] In the prior art, the commonly used pretreatment method is to use a stenter setting machine to pad the treatment solution, dry and roll it. This pretreatment method is likely to cause problems such as weft skew and yellowing of the gray fabric; in addition, digital printing is single-sided For printing, it only needs to be evenly sized on one side, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/46D06P1/48D06P1/50D06P1/52D06P1/62D06P1/649D06P1/673D06P5/00
CPCD06P1/48D06P1/50D06P1/46D06P1/525D06P1/6735D06P1/6491D06P1/67383D06P1/628D06P5/00
Inventor 孙付运房宽峻侯长华沈允涛李田田钱翠香齐乐乐刘曰兴
Owner SHANDONG HUANGHE DELTA INST OF TEXTILE SCI & TECH RES INST
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