Functional mica pigment processing technique

A mica pigment and processing technology, applied in inorganic pigment treatment, fibrous fillers, cosmetics, etc., can solve the problems of unfavorable use, poor pearl effect, weak anti-ultraviolet ability, etc., and achieve the effect of good gloss and improved adhesion

Inactive Publication Date: 2014-05-07
浙江瑞成新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the cosmetic grade pearlescent pigments of all companies are only used in cosmetics in terms of color decoration, and the pearlescent effect is poor.
And the anti-ultraviolet ability of the pearlescent pigment of prior art is relatively weak, is unfavorable for using

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Select sericite as raw material, process mica into powder as mica substrate, the particle size of mica powder is 98 μm, select tetravalent titanium salt as titanium source to coat powdered mica substrate, use sericite as substrate, Coated with high refractive index TiO 2 , the tetravalent titanium salt is TiCl 4 . The powdered mica substrate and deionized water are prepared into a mica substrate suspension with a concentration of 3%, the concentration of the tetravalent titanium salt solution is 11%, and the pH value of the mica substrate suspension is adjusted with dilute hydrochloric acid. To 2, under the condition of a water bath, the mica substrate suspension is stirred at a stirring speed of 520r / min. Then add the tetravalent titanium salt solution dropwise into the mica substrate suspension, and at the same time add the precipitant solution dropwise, the temperature of the water bath is 65°C, and add dropwise to the desired hue to obtain the coated TiO 2 The se...

Embodiment 2

[0026] Select sericite as raw material, process mica into powder as mica substrate, the particle size of mica powder is 132 μm, select tetravalent titanium salt as titanium source to coat powdered mica substrate, take sericite as substrate, Coated with high refractive index TiO 2 , the tetravalent titanium salt is TiOSO 4 . The powdered mica substrate and deionized water are prepared into a mica substrate suspension with a concentration of 6%, the concentration of the tetravalent titanium salt solution is 18%, and the pH value of the mica substrate suspension is adjusted with dilute hydrochloric acid. To 4, under the condition of a water bath, the mica substrate suspension is stirred at a stirring speed of 740r / min. Then add the tetravalent titanium salt solution dropwise into the mica substrate suspension, and at the same time add the precipitant solution dropwise, the temperature of the water bath is 90°C, and add dropwise to the desired hue to obtain the coated TiO 2 The...

Embodiment 3

[0030] Select sericite as raw material, process mica into powder as mica substrate, the particle size of mica powder is 92 μm, select tetravalent titanium salt as titanium source to coat powdered mica substrate, use sericite as substrate, Coated with high refractive index TiO 2 , the tetravalent titanium salt is TiCl 4 . The powdered mica substrate and deionized water are prepared into a mica substrate suspension with a concentration of 2%, the concentration of the tetravalent titanium salt solution is 15%, and the pH value of the mica substrate suspension is adjusted with dilute hydrochloric acid To 2, under the condition of a water bath, the mica substrate suspension is stirred at a stirring speed of 430r / min. Then add the tetravalent titanium salt solution dropwise into the mica substrate suspension, and at the same time add the precipitant solution dropwise, the temperature of the water bath is 84°C, and add dropwise to the desired hue to obtain the coated TiO 2 The ser...

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Abstract

The invention discloses a functional mica pigment processing technique, which comprises the following steps: selecting sericite as raw materials, processing the mica into powder as a mica substrate, wherein the particle size of the mica powder is 90-150mu m; selecting tetravalent titanium salt as a titanium source and coating the powder mica substrate, coating TiO2 by taking sericite as a substrate, adding zinc sulfate solution into sericite slurry for coating TiO2, and mixing, and adding calcium hydroxide into a reaction product; filtering, washing, drying and calcining the TiO2-coated sericite slurry. The functional mica pigment processing technique adopts sericite as mica, the functional mica pigment is better in gloss, is heat-insulating and resists ultraviolet rays, the adhesive power and coverage degree of cosmetics can be improved, after nano titanium dioxide is coated, titanium dioxide not only can effectively absorb ultraviolet rays, but also can reflect and scatter ultraviolet rays, and the nano zinc oxide can effectively absorb ultraviolet ray waveband range which cannot be effectively absorbed and isolated by titanium dioxide.

Description

technical field [0001] The invention relates to a processing technology of a pearlescent pigment, in particular to a processing technology of a functional mica pigment. Background technique [0002] Pearlescent pigments are widely used in coatings, pigments, cosmetics and other industries, and cosmetics are one of the pillar users of mica titanium pearlescent pigments. Mica titanium pearlescent pigments are non-toxic, heat-resistant, chemical-resistant, wide chromatogram, many varieties, Good pearlescent effect and other advantages can be added to beauty cosmetics such as pressed powder, nail polish, lipstick, eye shadow, etc., and its effect can produce various intuitive effects from pearl white to interference color, from soft satin luster to brilliant flash luster. [0003] But the cosmetic grade pearlescent pigment of all companies at present, its scope of application in cosmetics only lies in the aspect of color decoration, and the pearlescent effect is relatively poor....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/06C09C3/04A61K8/29A61Q17/04A61Q1/02
Inventor 郭永城张海滨黄兆忠郑洁李世军周官键
Owner 浙江瑞成新材料股份有限公司
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