Preparation method of composite paste for reactive dye printing

A reactive dye and printing technology, applied in dyeing, textile and papermaking, etc., can solve the problem of single paste performance, and achieve the effect of clear pattern outline, good shear thinning and strong affinity

Inactive Publication Date: 2017-07-28
HANGZHOU HONGBO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcoming of the single performance of the existing paste, and provide a preparation method of a composite paste for reactive dye printing with superior comprehensive performance

Method used

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  • Preparation method of composite paste for reactive dye printing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The composite paste of the present invention is as follows: respectively weigh 400kg of modified starch, 150kg of CMC (DS is 1.0, 1% aqueous solution viscosity 2000mpa.s), 100kg of modified guar gum and mix evenly, and put into 80% ethanol Disperse evenly in the solution, raise the temperature to 40°C, add 3.25kg nonylphenol polyoxyethylene ether, stir and react at constant temperature for 2 hours, centrifuge, dry, and pulverize to obtain the composite printing paste.

[0021] The preparation process of the modified tapioca starch used in the present invention is as follows: 400 kg of tapioca starch is weighed and dispersed in a mixed solvent of ethanol and isopropanol with an ethanol content of 80%. Add 100kg of sodium hydroxide NaOH evenly, keep the system temperature below 30°C when adding, stir and react for 1 hour after adding; add 290kg of sodium chloroacetate, and etherify at 55°C for 2 hours. Then add 0.2 kg of epichlorohydrin and react at a constant temperature...

Embodiment 2

[0024] The difference between embodiment 2 and embodiment 1 is:

[0025] The composite paste of the present invention is as follows: respectively weigh 400kg of modified starch, 175kg of CMC (DS is 1.05, 1% aqueous solution viscosity 1500mpa.s), 100kg of modified guar gum and mix evenly, drop into 80% ethanol Disperse evenly in the solution, raise the temperature to 45°C, add 13.5kg fatty alcohol polyoxyethylene ether, stir and react at constant temperature for 2.5 hours, centrifuge, dry and pulverize to obtain the composite printing paste.

[0026] The preparation process of the modified tapioca starch used in the present invention is as follows: 400 kg of tapioca starch is weighed and dispersed in a mixed solvent of ethanol and isopropanol with an ethanol content of 80%. Add 160kg of sodium hydroxide evenly, keep the system temperature below 30°C when adding, stir and react for 1.5 hours after adding, then add 300kg of sodium chloroacetate, and react at 60°C for 3 hours. Th...

Embodiment 3

[0029] The difference between embodiment 3 and embodiment 1 is:

[0030] The composite paste of the present invention is as follows: respectively weigh 400kg of modified starch, 150kg of CMC (DS is 1.1, viscosity of 1% aqueous solution 1800mpa.s), 150kg of modified guar gum and mix evenly, drop into 80% ethanol Disperse evenly in the solution, raise the temperature to 50°C, add 10kg of octylphenol polyoxyethylene ether, stir and react at constant temperature for 3 hours, centrifuge, dry and pulverize to obtain the composite printing paste.

[0031] The preparation process of the modified tapioca starch used in the present invention is as follows: 400 kg of tapioca starch is weighed and dispersed in a mixed solvent of ethanol and isopropanol with an ethanol content of 80%. Add 80kg of sodium hydroxide evenly, keep the system temperature below 30°C when adding, stir and react for 2 hours after adding, then add 300kg of sodium chloroacetate, and react at 58°C for 4 hours. Then a...

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Abstract

The invention discloses a method for preparing a composite paste for reactive dye printing. The composite paste is prepared by mixing modified starch, sodium carboxymethyl cellulose, and modified guar gum in a mass ratio of 8:3 to 4:2. ~3 Mix evenly at room temperature, then disperse in an ethanol solution with a concentration of 80% by mass, add an emulsifier, react at 40°C~50°C for 2~3 hours, centrifuge, dry, and pulverize to prepare a composite for reactive dye printing. paste. The method of the present invention prepares the composite paste with low cost, high paste rate when used as reactive dye printing, good storage stability, fine paste, good permeability, clear pattern outline, soft fabric, no need to add any preservatives, storage Time should not be corrupted.

Description

technical field [0001] The invention relates to a method for preparing a composite paste for reactive dye printing in textile printing. In particular, it relates to a method for preparing compound paste for reactive dye printing by using modified starch, sodium carboxymethyl cellulose, modified guar gum powder and the like. Background technique [0002] In textile printing, sodium alginate, as a traditional printing paste, has the advantages of good water retention, good permeability, and soft touch of printed fabrics. It is the most commonly used paste in cotton fabric reactive dye printing. However, with the increasing application of sodium alginate in food and health care products, the resources of sodium alginate used for printing and dyeing are tight, the price is rising day by day, and the cost of printing is increasing. Moreover, the storage stability of the original paste of sodium alginate is poor, and the original paste prepared with hard water will cause unstab...

Claims

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Application Information

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IPC IPC(8): D06P1/48D06P1/50D06P1/38C08B31/12C08B31/00
CPCD06P1/48C08B31/006C08B31/12D06P1/38D06P1/50
Inventor 朱俊雄朱国生
Owner HANGZHOU HONGBO NEW MATERIALS
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