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Printing paste for imitating wax printing and preparation method thereof

A printing paste and imitation wax technology, applied in the field of textile printing and dyeing, can solve the problems of acid and alkali resistance, poor salt resistance, unsatisfactory water holding capacity, low solubility, etc. good sex effect

Active Publication Date: 2016-04-20
BEIJING CTA TEX CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The more commonly used modified starches in reactive dye printing pastes are carboxymethyl starch and cross-linked starch, but both pastes have their own advantages and disadvantages. Carboxymethyl starch has better rheology and storage stability, but has The water quality is not ideal and the hand feels hard. The printing performance depends on the degree of etherification (degree of substitution)
When the degree of etherification is low or the etherification is uneven, the acid and alkali resistance and salt resistance are poor, and the solubility in water is also low

Method used

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  • Printing paste for imitating wax printing and preparation method thereof
  • Printing paste for imitating wax printing and preparation method thereof
  • Printing paste for imitating wax printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, be used for the preparation of the printing paste of imitation wax printing

[0044]Get 1.1kg of cornstarch and 0.9kg of potato starch and add it into 6kg of 95% ethanol, start stirring, and prepare a suspension. Add 230 g of 3 mol / L sodium chloride aqueous solution dissolved before, heat to 45° C., and adjust the pH value of the solution to 11 with 1.0 mol / L sodium hydroxide solution. Slowly add 1.6 g of cross-linking agent phosphorus oxychloride, and stir at 45° C. for 1.5 h. Weigh 500g of sodium hydroxide into the reaction kettle, and stir at 45°C for 1.5h at constant temperature. Slowly add 1.87kg of ethanol solution of chloroacetic acid with a mass fraction of 75% prepared previously into the reaction kettle, and then add another part of 250g of sodium hydroxide. Adjust the etherification temperature to 65°C, stir at constant temperature for 3 hours, then add 340 g of sodium chloroethylsulfonate, a sulfoethylation reagent, and keep the constant temp...

Embodiment 2

[0045] Embodiment 2, be used for the preparation of the printing paste of imitation wax printing

[0046] Get 0.8kg of cornstarch and 1.2kg of potato starch and add it into 6kg of 98% ethanol, start stirring, and prepare a suspension. Add 230 g of 3 mol / L sodium chloride aqueous solution dissolved before, heat to 40° C., and adjust the pH value of the solution to 10 with 1.0 mol / L sodium hydroxide solution. Slowly add 1.4 g of cross-linking agent phosphorus oxychloride, and stir at 40° C. for 2 h. Weigh 600g of sodium hydroxide into the reaction kettle, and stir at 40°C for 1.2h at constant temperature. Slowly add 1.73 kg of ethanol solution of chloroacetic acid with a mass fraction of 75% prepared previously into the reaction kettle, and then add another part of 300 g of sodium hydroxide. Adjust the etherification temperature to 70°C, stir at constant temperature for 2.5 hours, then add 360 g of sodium chloroethylsulfonate, a sulfoethylation reagent, and keep the constant t...

Embodiment 3

[0047] Embodiment 3, be used for the preparation of the printing paste of imitation wax printing

[0048] Get 0.9kg of cornstarch and 1.1kg of potato starch and add them into 6kg of 98% ethanol, start stirring, and prepare a suspension. Add 230 g of 3 mol / L sodium chloride aqueous solution dissolved before, heat to 45° C., and adjust the pH value of the solution to 11 with 1.0 mol / L sodium hydroxide solution. Slowly add 2 g of cross-linking agent phosphorus oxychloride, and stir at 45° C. for 1 h. Weigh 440 g of sodium hydroxide and add it into the reaction kettle, and stir at a constant temperature of 50° C. for 1 h. Slowly add 2.13 kg of ethanol solution of chloroacetic acid with a mass fraction of 75% prepared previously into the reaction kettle, and then add another part of 220 g of sodium hydroxide. Adjust the etherification temperature to 65°C, stir at constant temperature for 2 hours, then add 300 g of sodium chloroethylsulfonate, a sulfoethylation reagent, and keep t...

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Abstract

The invention discloses printing paste for imitating wax printing and a preparation method thereof. The preparation method of the printing paste comprises the following steps that 1, corn starch, potato starch and ethyl alcohol are mixed to be prepared into suspension liquid, an aqueous sodium chloride solution is added into the suspension liquid, the pH value is adjusted, and then a cross-linking agent is added for a cross-linking reaction; 2, an alkali a is added into the system in the step 1 for alkalization, an ethanol solution of chloroacetic acid and an alkali b are sequentially added for an etherification reaction, a sulfonated ethylation reagent is added for an alkylation reaction, the pH value of the system is adjusted after the alkylation reaction is finished, and then the printing paste for imitating wax printing is obtained. According to the printing paste, the hydratability is enhanced, the rheological property is good, the pattern used for imitating wax printing is good in definition, the hydrophily is enhanced, and the handfeel is soft; the cost is low, and the raw material sources are rich.

Description

technical field [0001] The invention relates to a printing paste for imitation wax printing and a preparation method thereof, belonging to the technical field of textile printing and dyeing. Background technique [0002] Pastes are generally used as thickeners to adjust the rheological properties of colorants. Sodium alginate has always been the first choice of printing paste for imitation wax printing because of its advantages such as no reaction with reactive dyes, high color yield, complete color spectrum, and soft fabric feel. But it is more expensive, and the printing cost is relatively high. Moreover, with the continuous improvement of printing technology, the use of sodium alginate alone can no longer meet people's needs for high-quality textiles. Therefore, it has become an urgent task to find a low-cost paste that can print fine patterns. [0003] The production cycle of real wax-proof printed cloth is long, the efficiency is low, the cost is high, and there is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/48C08B31/00C08B31/10
CPCC08B31/00C08B31/10D06P1/48
Inventor 赵扬邓燕孙志秋董德敢苏金明
Owner BEIJING CTA TEX CHEM
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