Iron oxide red pigment containing madder extract

Abstract

The invention relates to an iron oxide red pigment, and specifically relates to an iron oxide red pigment containing a madder extract. The pigment provided by the invention is prepared from the following raw materials in parts by weight: 280-300 parts of iron oxide red, 2-3 parts of magnesium sulfate, 1-3 parts of sodium polyacrylate, 2-3 parts of cobaltous oxide, 4-5 parts of the madder extract, 2-4 parts of sepiolite fibers, 1-2 parts of cerium oxide, 12-15 parts of silicon nitride powder and 4-5 parts of assistant. According to the pigment provided by the invention, the surface performance of the pigment is improved by sodium polyacrylate, and the madder extract is added, so that the pigment is brighter and more lasting in color and luster. By being combined with raw materials such as sepiolite fibers and silicon nitride powder, the hardness and temperature resistance are enhanced while the iron oxide red pigment prepared by the invention has a good dispersing characteristic. The iron oxide red pigment is well attached to a base material, lasting in color and luster and simple and efficient in production process, so that the iron oxide red pigment is particularly suitable for the fields such as papermaking, printing ink and painting pigments.

Description

technical field [0001] The invention relates to an iron oxide pigment, in particular to an iron oxide red pigment containing madder extract and a preparation method thereof. Background technique [0002] Iron oxide pigments are a kind of widely used inorganic pigments. They are widely used in construction, coatings, inks, ceramics, cosmetics and other industries. It also has the advantages of wide color spectrum, strong coloring power, non-toxicity and low price. At present, the iron oxide series pigments used in the market mainly include iron oxide red, iron oxide black, iron oxide yellow and orange, brown, green, etc. Composite pigments such as iron oxide are widely used. However, in the actual use process, there are problems such as easy agglomeration, difficulty in uniform dispersion in the medium, and insufficient bright color. In order to obtain better performance, it is often necessary to carry out surface treatment and performance improvement on iron oxide pigments. ...

AI Technical Summary

Problems solved by technology

[0002]Iron oxide pigments are a kind of widely used inorganic pigments, which are widely used in construction, paint, ink, ceramics, cosmetics and other industries. It not only has stable chemical properties, but also Acid and alkali resistance, light resistance and heat resistance, high tolerance to dry and wet, cold and hot climates, and also has the advantages of wide color spectrum, strong tinting power, non-toxic and cheap, etc. The iron oxide series pigments currently used in the market mainly include iron oxide Red, iron oxide black, iron oxide yellow, and orange, brown, green and other composite pigments are widely used. However, in the actual use process, there are problems such as easy agglomeration, difficulty in uniform dispersion in the medium, and insufficient bright color. In order to obtain better In terms of performance, it is often necessary to carry out surface treatment and performance improvement on iron oxide pigments to improve production and application performance and increase product added value

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