Paste for digital printing as well as preparation method and application thereof

A digital printing and paste technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of not enough richness and pattern fineness, insufficient pattern fineness, and insufficient permeability, etc., to achieve bright colors and good The effect of leveling performance and soaking performance, good pattern fineness

Active Publication Date: 2016-04-20
浙江劲光纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the pretreatment liquid adopts the traditional active printing paste, such as sodium alginate paste, etc., but it is prone to the following problems: the intensity of the color is not enough; the fineness of the p

Method used

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  • Paste for digital printing as well as preparation method and application thereof
  • Paste for digital printing as well as preparation method and application thereof
  • Paste for digital printing as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Slurry formula: 1% sodium alginate, 1% modified starch, 1% sodium bicarbonate, 3% carbonamide, 0.1% anti-staining salt S, 93.9% water.

[0031] The slurry preparation method is as follows:

[0032] Stir the sodium alginate into a paste first, then add sodium bicarbonate, stir to dissolve, then add the modified starch, and stir evenly to form the original paste; at room temperature, on the basis of the original paste, while stirring, slowly add carboxamide and anti-oxidant Dye with salt, stir for 50 minutes, and use it after standing for 24 hours.

[0033] The preparation method of modified starch is as follows:

[0034] Waxy cornstarch is dispersed in water to obtain starch milk (mass percentage concentration is 20%), then add sodium hydroxide to adjust the pH value of the starch milk to 8-10, then add dropwise octenyl succinic anhydride at 30°C Ethanol solution is reacted, and the mass percent concentration of octenyl succinic anhydride is 20%, wherein, during the re...

Embodiment 2

[0036] Slurry formula: 2% sodium alginate, 3% modified starch, 3% sodium bicarbonate, 12% carbonamide, 0.5% anti-staining salt S, 79.5% water.

[0037] Stir the sodium alginate into a paste first, then add sodium bicarbonate, stir to dissolve, then add the modified starch, and stir evenly to form the original paste; on the basis of the original paste, while stirring at room temperature, slowly add carboxamide and anti-oxidant Dye with salt, stir for 50 minutes, and use it after standing for 24 hours.

[0038] The preparation method of modified starch is as follows:

[0039] Waxy cornstarch is dispersed in water to obtain starch milk (mass percentage concentration is 25%), then add sodium hydroxide to adjust the pH value of the starch milk to 8-10, then add dropwise octenyl succinic anhydride at 40°C Ethanol solution is reacted, and the mass percent concentration of octenyl succinic anhydride is 10%, wherein, during the reaction, the pH value is kept between 8 and 10, and the ...

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PUM

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Abstract

The invention discloses a paste for digital printing as well as a preparation method and application thereof. The paste is prepared from the following components in percentage by weight: 1-5% of sodium alginate, 1-5% of modified starch, 1-5% of sodium hydrogen carbonate, 3-15% of carbamide, 0.1-1% of reserve salt and water. When the paste is used for digital printing of silks and cotton cloths, the paste has better color yield and flower type fineness while the color fastness is ensured.

Description

technical field [0001] The invention belongs to the field of digital printing, and in particular relates to a slurry for digital printing of silk and cotton and its preparation and application. Background technique [0002] As a brand-new printing method, digital inkjet printing has developed rapidly in recent years and represents the development trend of the textile printing field in the future. However, the industrialization of digital printing has not yet been formed. There are many reasons, such as equipment problems, ink price and quality problems, process technology problems, etc., among which pre-processing technology problems account for a large part of the reasons. [0003] Compared with the traditional printing paste, the digital printing paste does not directly add dyes, but evenly covers a layer of paste on the surface of the fabric. The uniformity, water-holding property, hygroscopicity, wettability, permeability, washability, and transfer performance of dyes o...

Claims

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Application Information

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IPC IPC(8): D06P1/48D06P1/673D06P1/649D06P3/04D06P3/60D06P5/30C08B31/04
CPCC08B31/04D06P1/48D06P1/6491D06P1/6735D06P3/04D06P3/60D06P5/30
Inventor 王国林郑飞荣
Owner 浙江劲光纺织科技有限公司
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