Preparation method for electric property-controllable organic pigment dispersion
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An organic pigment and system technology, applied in the field of textile printing and dyeing
Active Publication Date: 2014-10-15
德沐新材料科技苏州有限公司
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Problems solved by technology
At this time, the electrical properties of the pigment dispersion are fixed and cannot be flexibly adjusted according to actual needs.
Method used
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Examples
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Effect test
Embodiment 1
[0009] Add cellulase to water to make the enzyme protein concentration 0.1g / L, adjust the pH of the mixed solution to 7, add organic blue pigments whose mass is 10 times that of the enzyme protein, and process it for 30 minutes under ultrasonic grinding conditions, and finally use sodium hydroxide and Acetic acid adjusted the pH of the dispersion to 10, 8, 6, 3.5 and 3 respectively, and the measured surface potential values of the pigments were -50.3, -42.3, -37.2, 6.7 and 20.7mv.
Embodiment 2
[0011] Add cellulase to water to make the enzyme protein concentration 0.5g / L, adjust the pH of the mixed solution to be 7, add organic yellow pigments with a mass 20 times that of the enzyme protein, and process for 35min under ultrasonic grinding conditions; finally use sodium hydroxide and Acetic acid adjusted the pH of the dispersion to 10, 8, 6, 3.5 and 3 respectively, and the measured surface potential values of the pigments were -49.3, -43.3, -35.2, 9.7 and 17.4mv.
Embodiment 3
[0013] Add cellulase to water to make the enzyme protein concentration 1g / L, adjust the pH of the mixed solution to 7, add an organic red pigment whose mass is 20 times that of the enzyme protein, and process it for 40min under ultrasonic grinding conditions; finally, use sodium hydroxide and acetic acid The pH of the dispersion was adjusted to 10, 8, 6, 3.5 and 3 respectively, and the measured surface potential values of the pigments were -51.3, -41.3, -36.2, 12.7 and 19.6mv.
[0014] It can be seen from the examples that the electrical property controllable organic pigment dispersion can be prepared by the method of the present invention, and its electrical property can be adjusted and controlled by adjusting the pH value of the dispersion liquid.
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Abstract
The invention relates to a preparation method for electric property-controllable organic pigment dispersion, and belongs to the technical field of textile dyeing and finishing. The preparation method is characterized by comprising the following steps: adding a certain quantity of cellulase into water to ensure that the mass concentration of zymoprotein is 0.1 to 1 g / L; adjusting the pH of the mixed solution to be 7; adding an organic pigment of which the mass is 10 to 20 times of that of the zymoprotein; treating the liquid in a phacofragmentation condition for 30 to 40 min; adjusting the pH of the dispersion liquid to be 3 to 10 with acetic acid or sodium hydroxide as required. The preparation method has the advantages that the organic pigment dispersion prepared according to the method is stable; the electric property of the organic pigment dispersion can be adjusted and controlled by adjusting the pH value of the dispersion liquid.
Description
technical field [0001] The invention relates to a method for preparing an electrically controllable organic pigment dispersion, in particular to a method for preparing an electrically controllable organic pigment dispersion by using cellulase, and belongs to the technical field of textile printing and dyeing. Background technique [0002] In addition to dyes, organic pigment dispersions can also 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 primar...
Claims
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Application Information
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