Preparation method for cationic type for organic red water-based color paste

Abstract

The invention relates to a preparation method for cationic type for organic red water-based color paste. A basic formula of the cationic type for organic red water-based color paste consists of the following components in percentage by weight: 20%-45% of deionized water, 3%-10% of propylene glycol, 1%-3% of a wetting agent, 6%-20% of a cationic polymer dispersing agent, 0.1%-0.8% of a pH regulator, 20%-50% of organic red pigment, 0.1%-1.0% of a thickening and anti-settling agent, 0.1%-0.3% of a bactericide and 0.1%-0.5% of a defoaming agent; and the cationic polymer dispersing agent is one of an SMA-polyoxyethylene ether-quaternary amine type cationic polymer dispersing agent or an SMA-polyoxyethylene ether-amide type cationic polymer dispersing agent. The cationic type for organic red water-based color paste prepared by the preparation method has the characteristics of poor storage stability, high coloring power, good compatibility and the like, and is widely used for textile printing or inkjet printing ink and coloring of paper-making color paste, water-based electrophoretic paint, water-based lacquer for paper, water-based ink, water-based wood lacquer and the like.

Description

technical field [0001] The invention relates to a preparation method of a cationic water-based color paste, in particular to a cationic organic red water-based color paste and a preparation method of the color paste. Background technique [0002] Water-based color paste is a coloring material, and its application fields are very wide, including paint, leather, ink, paper, latex, textile and other industries. Most of the water-based colorants currently produced are anionic water-based colorants, which are widely used in the coloring of architectural coating latex paints and water-based industrial coatings. In textile, papermaking, wood, printing ink, printing inkjet, etc., the substrates are fibrous structures, and the surface of these materials has negative charges. For example, when anionic color paste is used, it is easy to cause defects such as color bleeding and low coloring strength. The surface of the cationic water-based color paste is positively charged, which not o...

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Problems solved by technology

[0004] Chinese patent 9812547.0 discloses a preparation method of cationic ink, the dispersant used is a cationic polymer dispersant containing amine oxide type; Polymer is used as cationic dispersant; Chinese patent 03158229.X discloses a preparation method of cationic pigment slurry for anionic electrophoretic coatings, using cationic resin containing urea group and quaternary ammonium base as cationic dispersant; the above cationic polymer dispersant None contain block polymer structure, low pigment content and poor stability in water-based system

The preparation process of the above-mentioned patented color paste is too complicated, and the post-processing investment is large, so it is not suitable for industrial production

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