Method for carrying out surface treatment on pigments by using phosphorous compounds

A surface treatment and compound technology, applied in dyeing low-molecular-weight organic compound treatment, pigment slurry, organic dyes, etc., can solve the problem of unable to meet the requirements of color paste stability and tinting strength, and improve the stability and tinting strength. Effect
CN102604447AActive Publication Date: 2012-07-25SUZHOU SUNMUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU SUNMUN TECH CO LTD
Publication Date
2012-07-25

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Abstract

The invention discloses a method for carrying out surface treatment on pigments by using phosphorous compounds. The method comprises the following steps that mixing aromatic phosphorous compound and alkyl phosphorous compound and then carrying out surface treatment on a pigment, wherein one of 2-benzyl phenol phosphomonoester and 2,4,6-tris(1-methyl-1-phenylethyl)phenol phosphomonoester is preferably chosen as the aromatic phosphorous compound, and alkyl phosphate containing 12 to 18 carbon atoms is preferably chosen as the alkyl phosphorous compound. When the pigment treated by the method is used in the preparation of water-based color paste, the stability and tinctorial strength of the water-based color paste are remarkably enhanced.
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Description

technical field

[0001] The invention relates to a method for surface treatment of pigments, in particular to a method for surface treatment of pigments with phosphorus-containing compounds to improve the stability and coloring effect of pigments in water-based systems. Background technique

[0002] Pigment surface treatment refers to a method of depositing or coating surfactants, surface modifiers, polymer compounds and other substances on the surface of pigment particles, thereby significantly changing the surface properties of pigment particles.

[0003] Surface treatment of pigments to facilitate their stable dispersion in organic solvents and maintain a small particle size is a very mature technology. However, as the whole society pays more and more attention to the control of environmental pollution in recent years, relevant laws and regulations have become increasingly strict on the emission of volatile organic compounds (VOC), and industries such as coatings and inks ...

Claims

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