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Method for improving dispersion efficiency of cellulase on organic pigments

A technology of organic pigments and cellulase, applied in the field of textile printing and dyeing, can solve the problems of large molecular weight of cellulase, low pigment dispersion efficiency, and long time

Active Publication Date: 2018-11-23
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molecular weight of cellulase is large, the dispersion efficiency of the pigment is low, and it takes a long time for the pigment particles to reach the target particle size

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Add cellulase with a mass concentration of 1g / L in water, and then add cetyltrimethylammonium chloride with a mass concentration of 0.1g / L and octylphenol polyoxyethylene with an oxirane number of 15 Ether, after 10000 rpm dispersing machine treatment for 2 minutes, then add organic pigment red with a mass concentration of 20 g / L, and ultrasonic treatment for 15 minutes, the average particle size of the test pigment red is 192nm.

Embodiment 2

[0015] Add cellulase with a mass concentration of 1g / L in water, and then add cetyltrimethylammonium chloride with a mass concentration of 0.1g / L and octylphenol polyoxyethylene with an oxirane number of 15 Ether, after 10000 rpm dispersing machine treatment for 2min, then add organic pigment blue with a mass concentration of 20 g / L, and ultrasonic treatment for 20min, the average particle size of the test pigment blue is 177nm.

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Abstract

The invention relates to a method for improving the dispersion efficiency of cellulase on organic pigments, and belongs to the technical field of textile dye printing. The method uses the following processes of adding cellulase with the mass concentration being 1g / L in water; then, adding hexadecyl trimethyl ammonium chloride with the mass concentration being 0.1g / L and octaphenyl polyoxyethyienewith the ethylene oxide number being 15; performing treatment by a dispersion machine being 10000r / min for 2min; adding organic pigments with the mass concentration being 20g / L; and performing ultrasonic treatment for 15 to 50min. Cationic surface active agents of hexadecyl trimethyl ammonium chloride and nonionic surfactants of octaphenyl polyoxyethyiene are used in a way of being cooperated withcellulase; the time required for dispersing the pigment to the target granularity can be obviously reduced.

Description

technical field [0001] The invention relates to a method for improving the dispersion efficiency of cellulase on organic pigments, belonging to the technical field of textile printing and dyeing. Background technique [0002] Organic pigment dispersions can be used in the dyeing of various textiles, and have the advantages of short process flow, energy saving, and less wastewater discharge. It is one of the key technologies for energy saving, consumption reduction, and emission reduction in the textile printing and dyeing industry. The lack of water-soluble groups in the matrix structure of organic pigments has strong hydrophobicity, and it is difficult to disperse uniformly in aqueous media. Therefore, it is necessary to modify the surface of the organic pigment according to its structural characteristics, and then form a stable primary particle dispersion through strong pulverization before it can be used for dyeing textiles. In addition to various dispersants, some biolo...

Claims

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Application Information

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IPC IPC(8): C09B67/46C09B67/08
Inventor 郝龙云赵月泰王蕊房宽峻蔡玉青谭业强
Owner QINGDAO UNIV
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