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Pigment dispersion method, pigment mixture, light-cured ink and thermo-cured ink

A pigment dispersion and mixture technology, which is applied in the direction of pigment slurry, ink, organic dyes, etc., can solve the problems of high viscosity, particle size not meeting the requirements, wide particle size distribution range, etc., and achieve low viscosity, short process cycle, The effect of a narrow particle size distribution

Active Publication Date: 2010-06-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the existing micronization methods of organic pigment particles all have technical defects such as particle size not meeting the requirements, wide particle size distribution range, and high viscosity.

Method used

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  • Pigment dispersion method, pigment mixture, light-cured ink and thermo-cured ink
  • Pigment dispersion method, pigment mixture, light-cured ink and thermo-cured ink
  • Pigment dispersion method, pigment mixture, light-cured ink and thermo-cured ink

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0057] Step 11, mixing 40 parts by weight of the dispersed resin and 50 parts by weight of the solvent in a high-speed stirring manner to obtain a dispersed resin solution;

[0058] Step 12, fully mixing and dissolving 83 parts by weight of the dispersant and 110 parts by weight of the solvent in a high-speed stirring manner to prepare a dispersant solution;

[0059] Step 13, adding 100 parts by weight of the pigment to be dispersed into the dispersant solution, and fully wetting the pigment by high-speed stirring to prepare the first mixed solution;

[0060] Step 14, adding the dispersing resin solution into the first mixed solution, and fully mixing with high-speed stirring to prepare a second mixed solution;

[0061] Step 15, adding 263.5 parts by weight of solvent into the second mixed solution to dilute the second mixed solution;

[0062] Step 16: Grinding and dispersing the uniformly diluted second mixed solution with a sand mill.

[0063] Table 1a shows the situation ...

no. 2 example

[0069] Step 21. Mix 40 parts by weight of dispersing resin, 3.5 parts by weight of wetting agent and 50 parts by weight of solvent in a high-speed stirring manner to prepare a dispersed resin solution;

[0070] Step 22, fully mixing and dissolving 75 parts by weight of dispersant and 110 parts by weight of solvent in a high-speed stirring manner to prepare a dispersant solution;

[0071] Step 23, adding 100 parts by weight of the pigment to be dispersed into the dispersant solution, and fully wetting the pigment by high-speed stirring to prepare the first mixed solution;

[0072] Step 24, adding the dispersed resin solution into the first mixed liquid, and fully mixing with high-speed stirring to obtain a second mixed liquid;

[0073] Step 25, adding 271.5 parts by weight of solvent to the second mixed solution to dilute the second mixed solution;

[0074] Step 26: Grinding and dispersing the uniformly diluted second mixed solution with a sand mill.

[0075] Table 2a shows t...

no. 3 example

[0082] Step 31, mixing 40 parts by weight of the dispersion resin and 50 parts by weight of the solvent uniformly in a high-speed stirring manner to prepare a dispersion resin solution;

[0083] Step 32, fully mixing and dissolving 40.9 parts by weight of dispersant and 110 parts by weight of solvent in a high-speed stirring manner to prepare a dispersant solution;

[0084] Step 33, adding 100 parts by weight of the pigment to be dispersed into the dispersant solution, and fully wetting the pigment by high-speed stirring to prepare the first mixed solution;

[0085] Step 34, adding the dispersed resin solution into the first mixed solution, and fully mixing with high-speed stirring to prepare a second mixed solution;

[0086] Step 35, adding 336 parts by weight of solvent to the second mixed solution to dilute the second mixed solution;

[0087] Step 36: Grinding and dispersing the uniformly diluted second mixed solution with a sand mill.

[0088] Table 3a shows the situatio...

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Abstract

The invention relates to a pigment dispersion method, a pigment mixture, light-cured ink and thermo-cured ink. The pigment dispersion method comprises the steps of: mixing 0.05-20wt% of dispersion resin and 5-10wt% of solvent in a stirring way, and preparing dispersion resin solution; mixing 1-20wt% of dispersing agent and 15-20wt% of solvent in a stirring way, and preparing dispersing agent solution; adding 5-20wt% of pigment to be dispersed into the dispersing agent solution, and preparing first mixed solution; adding the dispersion resin solution into the first mixed solution, and preparing second mixed solution; adopting 20-55wt% of solvent to dilute the second mixed solution; and using a sand mill to grind and disperse the second mixed solution which is evenly diluted. The invention has the advantages of small grain diameter, narrow range of grain fineness distribution, low viscosity, excellent wettability, high storage stability and the like.

Description

technical field [0001] The invention relates to a pigment and a preparation method of the pigment, in particular to a pigment dispersion method, a pigment mixture, light-curable ink and heat-curable ink. Background technique [0002] In recent years, with the continuous improvement of consumers' requirements for products, producers are also continuously improving their product performance and precision levels. Taking the field of ink technology as an example, with the promotion and popularization of inkjet printing technology, consumers require inks to have bright colors, low viscosity, good fluidity and good storage stability, so correspondingly require pigment mixtures (also known as pigments) Dispersion system) has the properties of small particle size, narrow particle size distribution, low viscosity, stable storage and so on. [0003] The pigment used as the coloring system in the ink and pigment photoresist is dispersed in the coloring body in the form of micronized p...

Claims

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Application Information

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IPC IPC(8): C09B67/20C09D17/00C09D11/10C09D11/326
Inventor 杨久霞王家恒邵喜斌赵吉生张卓李琳白峰
Owner BOE TECH GRP CO LTD
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