High-density pearlescent pigment

Abstract

A disclosed high-density pearlescent pigment is characterized in that the pigment comprises a substrate material with the particle size of 10-60 mu m, the external of the substrate material is coated with a layer of a titanium dioxide film, and also the external of the titanium dioxide film is coated with a layer of a coloring agent for forming a metal oxide composite coating; the coloring agent is ferroferric oxide, a solution of trivalent iron and divalent iron salts is added during preparation; and the substrate material is one of mica, synthetic mica and glass flakes with the particles size of 10-60 mu m. The beneficial effects comprise that the prepared pigment is a magnetic pearlescent pigment, is flat in surface deposition, high in density and obvious in pearlescent effect, has the effect of changing color along with angle variation, and is relatively good in product brightness and color saturation; when the pigment is applied to an object, multiple light reflection effect can be realized under the irradiation of light; and the pigment is relatively high in stability, and does not fade at a relatively high temperature.

Description

technical field [0001] The invention relates to a pearlescent pigment, in particular to a high-density pearlescent pigment that will not fade even at relatively high temperatures. Background technique [0002] Pearlescent pigments are non-toxic, odorless, acid and alkali resistant, non-flammable, non-explosive, non-conductive, non-migrating, easy to disperse, have high heat resistance and weather resistance, and fully meet strict environmental protection requirements. It has the shimmering effect of metallic pigments and produces the soft shades of natural pearls. [0003] The excellent performance of pearlescent pigments makes it a new idea in today's color field and has higher commodity value. Pearlescent pigments are widely used in various fields, such as automobile, motorcycle, bicycle coating, powder coating, architectural coating, pearlescent ink, pearlescent leather, pearlescent plastic products, pearlescent cosmetics, papermaking, printing and dyeing, printing, rubb...

AI Technical Summary

Problems solved by technology

[0004] However, at present, my country's high-quality and high-density pearlescent pigments still cannot meet the market demand. Most of them need to be imported from abroad, and the production cost is expensive.

Moreover, the interference effect between the layers of the finished pigment is weak, and there are shortcomings such as low brightness and saturation, and easy fading under high temperature conditions.

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