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Production process of environment-friendly composite pigment

A composite pigment and production process technology, applied in anthracene dyes, organic dyes, inks, etc., can solve the problems of small application range of heat-resistant pigments, low-viscosity storage stability, unfavorable market promotion, etc., to increase solvent resistance and Migration resistance, good fluidity, and the effect of not easy precipitation

Inactive Publication Date: 2020-08-07
罗水英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese invention patent CN108929557A discloses a method for preparing organic pigments for water-based inks, including preparation of diazo liquid, preparation of coupling component liquid, coupling reaction, pigment post-treatment, etc., wherein, in the preparation of coupling component liquid, add Azo dye derivatives; the pigments prepared by the method for preparing organic pigments for water-based inks of the invention have higher coloring strength and gloss; Viscosity and good storage stability, but the pigment prepared by this invention has high solubility in solvent, and the pigment will dissolve in the solvent during the process of mixing with the ink, which will affect the performance of the entire ink film, and the pigment’s durability The scope of application of thermal pigments is small, which is not conducive to market promotion

Method used

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  • Production process of environment-friendly composite pigment
  • Production process of environment-friendly composite pigment
  • Production process of environment-friendly composite pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A production process of an environment-friendly composite pigment. The environment-friendly composite pigment is made of the following raw materials in parts by weight: 20 parts of pigment base, 30 parts of ethanol, 3 parts of CH-M8, 7 parts of glacial acetic acid, and 1.5 parts of glycerol trihydroxy polyether ;

[0050] The concrete steps of the production technology of this environment-friendly composite pigment are as follows:

[0051] Step A1: adding the pigment matrix into an oven, and drying for 5 hours at a temperature of 60° C. to obtain the dried pigment matrix;

[0052] Step A2: Add the dried pigment matrix obtained in step A1 into a grinding disperser, grind for 20 minutes at a speed of 1000 r / min until the particle size of the pigment matrix is ​​0.05 μm, add ethanol into the grinding disperser, Under the condition of rotating speed of 1500r / min, disperse for 30min to obtain the dispersion liquid;

[0053] Step A3: Add CH-M8 and glacial acetic acid into a...

Embodiment 2

[0061] A production process of an environment-friendly composite pigment. The environment-friendly composite pigment is made of the following raw materials in parts by weight: 40 parts of pigment base, 60 parts of ethanol, 5 parts of CH-M8, 10 parts of glacial acetic acid, and 4 parts of glycerol trihydroxy polyether ;

[0062] The concrete steps of the production technology of this environment-friendly composite pigment are as follows:

[0063] Step A1: Add the pigment matrix into an oven, and dry it for 6 hours at a temperature of 70° C. to obtain the dried pigment matrix;

[0064] Step A2: Add the dried pigment matrix obtained in step A1 into a grinding disperser, grind for 30 minutes at a speed of 1500 r / min, until the particle size of the pigment matrix is ​​0.1 μm, add ethanol into the grinding disperser, Under the condition of rotating speed of 2000r / min, disperse for 40min to obtain the dispersion liquid;

[0065] Step A3: Add CH-M8 and glacial acetic acid into a sti...

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Abstract

The invention discloses a production process of an environment-friendly composite pigment. The environment-friendly composite pigment is prepared from the following raw materials in parts by weight: 20-40 parts of a pigment matrix, 30-60 parts of ethanol, 3-5 parts of a hyperdispersant, 7-10 parts of glacial acetic acid and 1.5-4 parts of glycerol trihydroxy polyether. According to the invention,the pigment matrix is prepared in the process of preparing the environment-friendly composite pigment, a single molecule of the pigment matrix contains six carboxyl groups, and the carboxyl group is agroup with high polarity, so the heat resistance of the pigment matrix is improved, meanwhile, the solvent resistance and the migration resistance of the environment-friendly composite pigment are improved; the pigment matrix is subjected to surface modification with the hyperdispersant, so the environment-friendly composite pigment has good fluidity; and a grinding dispersion machine is used during the preparation process, so the production time of the environment-friendly composite pigment is reduced, production efficiency is improved, and the production cost of the environment-friendly composite pigment is reduced.

Description

technical field [0001] The invention belongs to the field of pigment preparation, and in particular relates to a production process of an environment-friendly composite pigment. Background technique [0002] Pigment is a substance that can dye objects with color. Pigments are soluble and insoluble, and there are differences between inorganic and organic. Inorganic pigments are generally mineral substances. Humans have long known the use of inorganic pigments, using colored soil and Ore, painting and smearing the body on the rock wall, organic pigments are generally taken from plants and marine animals, such as madder blue, gamboge and purple extracted from shellfish in ancient Rome; [0003] Chinese invention patent CN108929557A discloses a method for preparing organic pigments for water-based inks, including preparation of diazo liquid, preparation of coupling component liquid, coupling reaction, pigment post-treatment, etc., wherein, in the preparation of coupling componen...

Claims

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Application Information

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IPC IPC(8): C09B1/48C09B67/46C09D11/037B02C13/14B02C13/26B02C13/30B02C15/00B02C21/00B02C23/16
CPCB02C13/14B02C13/26B02C13/30B02C15/00B02C21/00B02C23/16B02C2023/165C09B1/48C09B67/0084C09B67/0091C09D11/037
Inventor 罗水英
Owner 罗水英
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