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Composite paste for disperse printing and preparation method thereof

A dispersion and paste technology, applied in the field of textile printing and dyeing, can solve the problems of limited source of raw materials, low hair removal rate, insufficient permeability, etc., and achieve the effects of good water solubility, convenient use and good levelness.

Pending Publication Date: 2019-01-25
HUBEI DAYA BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above two kinds of printing pastes have more or less certain defects, such as insufficient permeability, low hair removal rate, or high cost due to limited raw material sources. Therefore, there is an urgent need for a relatively good cost-effective Products to meet the needs of the decentralized printing market

Method used

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  • Composite paste for disperse printing and preparation method thereof

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Effect test

Embodiment 1

[0051] This embodiment discloses a preparation method of a composite paste for disperse printing, comprising the following steps:

[0052] 1) Dissolving 500kg cornstarch and 300kg tamarind gum into 3200kg of ethanol with a concentration of 93%, stirring evenly, then adding liquid caustic soda with a solid content of 30%, adjusting the pH of the reaction system to be 11~12, the alkali The amount of solution used is about 85kg, the temperature of the reaction system is adjusted to 30°C, and the activation reaction takes 30 minutes to obtain the first intermediate product;

[0053] 2) Add 2.4kg of cross-linking agent phosphorus oxychloride to the first intermediate product in step 1), control the reaction temperature to 30°C, and cross-link for 30 minutes to obtain the second intermediate product;

[0054] 3) Slowly and uniformly add 440kg of chloroacetic acid to the second intermediate product in step 2), control the temperature of the reaction system≤45°C, then slowly and uniform...

Embodiment 2

[0058] This embodiment discloses a preparation method of a composite paste for disperse printing, comprising the following steps:

[0059] 1) Dissolving 500kg potato starch and 350kg tamarind gum into 3200kg of ethanol with a concentration of 93%, stirring evenly, then adding liquid alkali with a solid content of 31%, adjusting the pH of the reaction system to be 11~12, the alkali The amount of solution used is about 93kg, the temperature of the reaction system is adjusted to 30°C, and the activation reaction takes 30 minutes to obtain the first intermediate product;

[0060] 2) Add 3.4kg of cross-linking agent epichlorohydrin to the first intermediate product in step 1), control the reaction temperature to 30°C, and cross-link for 30 minutes to obtain the second intermediate product;

[0061] 3) Slowly and uniformly add 440kg of chloroacetic acid to the second intermediate product in step 2), control the temperature of the reaction system≤45°C, then slowly and uniformly add 3...

Embodiment 3

[0065] This embodiment discloses a preparation method of a composite paste for disperse printing, comprising the following steps:

[0066] 1) Dissolving 400kg wheat starch and 400kg tamarind gum into 3000kg of ethanol with a concentration of 93%, stirring evenly, then adding liquid caustic soda with a solid content of 30.5%, adjusting the pH of the reaction system to be 11~12, the alkali The amount of solution used was about 83kg, the temperature of the reaction system was adjusted to 30°C, and the activation reaction was performed for 30 minutes to obtain the first intermediate product;

[0067] 2) Add 4.0 kg of cross-linking agent phosphorus oxychloride to the first intermediate product in step 1), control the reaction temperature to 30°C, and cross-link for 1 hour to obtain the second intermediate product;

[0068] 3) Slowly and uniformly add 400kg of chloroacetic acid to the second intermediate product in step 2), control the temperature of the reaction system to ≤45°C, th...

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Abstract

The invention discloses composite paste for disperse printing and a preparation method thereof, and belongs to the technical field of textile printing and dyeing. The composite paste is characterizedin that starch and tamarind gum are uniquely adopted to be taken as a dispersing base material with a product subjected to carboxymethylation and modification, and the dispersing base material is compounded with sodium carboxymethyl cellulose, sodium hexametaphosphate and sodium dihydrogen phosphate; and the obtained composite paste has relatively good rheological property, water-holding propertyand paste-removing property. The composite paste can be used after being directly dissolved with cold water, is relatively good in stability, and is convenient for being stored for a long time.

Description

technical field [0001] The invention relates to a printing paste, which belongs to the technical field of textile printing and dyeing, in particular to a compound paste for disperse printing and a preparation method thereof. Background technique [0002] Printing paste is an important part of printing paste, which can be dispersed in water to form a colloidal solution with a certain concentration and viscous thickness. When printing, the paste is used as a carrier to transfer the dye to the fabric, which requires the paste to have good permeability without bleeding. Therefore, the performance of printing paste directly affects important indicators such as printing cost, fabric color yield, pattern outline clarity and fabric feel. [0003] So far, the most commonly used printing pastes are sodium alginate, modified starch, cellulose derivatives, modified guar gum, modified tamarind gum, konjac gum, xanthan gum, etc. Among them, sodium alginate is currently an important prin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/48D06P1/50D06P1/673
CPCD06P1/16D06P1/48D06P1/50D06P1/67366
Inventor 徐振明陈学俊邹春梅徐舒颖张恒凤
Owner HUBEI DAYA BIOLOGICAL TECH CO LTD
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