Method for preparing iron oxide black water-based color paste with high performance-price ratio

Abstract

The invention relates to a method for preparing an iron oxide black water-based color paste with high performance-price ratio. The fundamental formula of the iron oxide black water-based color paste comprises the following component in percentage by weight: 15-30 percent of water, 3-10 percent of humectant, 1.5-3 percent of wetting agent, 4-7 percent of dispersant, 0.2-0.5 percent of AMP-95 multifunctional additive, 40-60 percent of iron oxide black powder, 0.2-0.5 percent of thickening anti-settling agent, 0.1-0.3 percent of bactericidal agent and 0.1-0.5 percent of antifoaming agent. The iron oxide black water-based color paste has the characteristics of excellent storage stability, high dyeing power, good compatibility and the like, has high performance, economical efficiency and an environmental-protection effect, and is the iron oxide black water-based color paste with high performance-price ratio; and the iron oxide black water-based color paste is widely used for coloring of water-based building coatings, water-based woodwork coatings, water-based automobile coatings, water-based paper coatings, water-based plastic coatings, water-based glass coatings, water-based leather coatings, water-based ink and the like.

Description

technical field [0001] The invention relates to a preparation method of iron oxide black water-based color paste, in particular to a multi-purpose, economical and high-performance iron oxide black water-based 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 currently produced water-based iron oxide color pastes are used for the coloring of latex paints for architectural coatings. For example, application numbers 03102844.6, 03132933.0, 03106999.1 and 200510120763.0 all belong to this type of color paste. The main components are dispersants, defoamers, iron oxide pigments, Preservatives, thickeners and water have good compatibility with latex paints. Most of the dispersants are polyacrylic acid sodium salts or ammonium salts. This type of color paste has poor stability and breaks down after long-term storage...

AI Technical Summary

Problems solved by technology

Most of the currently produced water-based iron oxide color pastes are used for the coloring of latex paints for architectural coatings. For example, application numbers 03102844.6, 03132933.0, 03106999.1 and 200510120763.0 all belong to this type of color paste. The main components are dispersants, defoamers, iron oxide pigments, Preservatives, thickeners and water have good compatibility with latex paints. Most of the dispersants are polyacrylic acid sodium salts or ammonium salts. This type of color paste has poor stability and breaks down after long-term storage (about 2 months). Severe water, hard precipitation; using polyacrylic acid sodium salt or ammonium salt as dispersant, there is a higher selection of iron oxide pigments, the cost will increase by about 40%, and the economy is incomparable

Moreover, this kind of color paste is not suitable for water-based wood coatings, water-based automotive coatings, water-based paper coatings, water-based plastic coatings, water-based glass coatings, etc., and has coating disadvantages such as poor compatibility, floating color and fading.

At present, water-based wood coatings, water-based automotive coatings, water-based paper coatings, water-based plastic coatings, and water-based glass coatings have higher and higher requirements for the performance and environmental protection standards of colorants. To meet the requirements of such colorants, high-performance dispersants must be selected. Such as BYK190, TEGO750W, etc., their cost performance does not meet market demand