Preparing method for hydrophobic and oleophobic cosmetic pigment powder

A hydrophobic, oleophobic, and cosmetics technology, which is applied in the direction of cosmetic preparations, cosmetics, cosmetics, etc., can solve problems such as color drift, and achieve the effect of good skin adhesion, smooth hand feeling, and simple equipment

Active Publication Date: 2016-04-06
SHANGHAI CO FUN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of the prior art, and to provide a cosmetic pigment powder that is hydrophobic and oil-repellent, feels smooth, has good skin-adhesiveness and spreadability, and is applied to cosmetic formulations (especially emulsification systems) without drifting color. The preparation method fundamentally solves the problem of color drift of fluorine-containing silane-treated pigment powders in cosmetic formulations

Method used

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  • Preparing method for hydrophobic and oleophobic cosmetic pigment powder
  • Preparing method for hydrophobic and oleophobic cosmetic pigment powder
  • Preparing method for hydrophobic and oleophobic cosmetic pigment powder

Examples

Experimental program
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Effect test

Embodiment 1

[0043] 1Kg titanium dioxide, under high-speed stirring, 100g nano-silica sol (SiO 2 content of 30%) into a mixer, heated at 80°C, and stirred at a high speed to fully mix the nano-silica sol and titanium dioxide, then discharged, and heat-treated at 120°C. 30 g of perfluorooctyltriethoxysilane (Dynasylan F8261, Evonik Degussa) was dissolved in 70 g of ethanol to prepare a treatment solution. Under high-speed stirring, spray the treatment liquid into the titanium dioxide treated with nano-silica sol, heat at 80°C, and stir at high speed to fully mix the treatment liquid and powder, discharge, and heat-treat at 120°C. After the material is discharged, it is jet-milled to obtain titanium dioxide treated with 3% nano-silica sol + 3% perfluorooctyltriethoxysilane.

Embodiment 2

[0045] 1Kg iron oxide yellow powder, under high-speed stirring, 100g nano-silica sol (SiO 2 content of 30%) into a mixer, heated at 80°C, and stirred at a high speed to fully mix the nano-silica sol and yellow iron oxide powder, then discharged, and heat-treated at 105°C. 30 g of perfluorooctyltriethoxysilane (Dynasylan F8261, Evonik Degussa) was dissolved in 70 g of ethanol to prepare a treatment solution. Under high-speed stirring, spray the treatment liquid into the aforementioned iron oxide yellow powder treated with nano-silica sol, heat at 80°C, and stir at high speed to fully mix the treatment liquid and powder, discharge, and heat-treat at 105°C. After the material is discharged, it is jet-milled to obtain iron oxide yellow powder treated with 3% nano-silica sol + 3% perfluorooctyltriethoxysilane.

Embodiment 3

[0047] 1Kg iron oxide red powder, under high-speed stirring, 100g nano-silica sol (SiO 2 content of 30%) into a mixer, heated at 80°C, and stirred at a high speed to fully mix the nano-silica sol and red iron oxide powder, then discharged, and heat-treated at 105°C. 30 g of perfluorooctyltriethoxysilane (Dynasylan F8261, Evonik Degussa) was dissolved in 70 g of ethanol to prepare a treatment solution. Under high-speed stirring, spray the treatment liquid into the aforementioned iron oxide red powder treated with nano-silica sol, heat at 80°C, and stir at high speed to fully mix the treatment liquid and powder, discharge, and heat-treat at 105°C. After the material is discharged, it is jet-milled to obtain red iron oxide powder treated with 3% nano-silica sol + 3% perfluorooctyltriethoxysilane.

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Abstract

The invention discloses a preparing method for hydrophobic and oleophobic cosmetic pigment powder. The preparing method includes the following steps that 1, nano-silicon sol is sprayed to the surface of inorganic powder under the high-speed stirring condition; 2, first-time heat treatment is carried out; 3, fluorine containing silane is dispersed through ethyl alcohol or isopropanol, and then the fluorine containing silane is sprayed to the surface of the treated inorganic powder under the high-speed stirring condition; 4, second-time heat treatment is carried out; 5, airflow smashing is carried out. The powder prepared with the preparing method has the advantages that the hydrophobic performance and the oleophobic performance are achieved, soft and smooth hand feeling is achieved, and the skin fitting performance is good; as various kinds of toner are added into an emulsification system at the same time, the color floating problem can be solved, the color floating problem of the pigment powder treated through the fluorine containing silane in the cosmetic formula is fundamentally solved, and quite large convenience is provided for production and quality control of fluorated liquid foundation (cream) products.

Description

technical field [0001] The invention relates to the field of cosmetics, in particular to a method for preparing a hydrophobic and oleophobic cosmetic pigment powder. Background technique [0002] With the improvement of living standards, people's demand for cosmetics is also increasing rapidly. In the past, most cream / liquid foundations were waterproof, but rarely oil-proof. During use, the oil and sweat secreted by the skin can easily damage the makeup. According to the differences in the skin of different groups of people, it will always cause different degrees of makeup loss and makeup. [0003] In recent years, fluorine-containing silanes have also been used in a small amount in the cosmetics industry. For example, JP2008037813 and JP2008137921 disclose the use of fluorine-containing silanes in the surface treatment of cosmetic pigment powders to achieve hydrophobic and oleophobic effects. [0004] However, the method mentioned in the patent documents JP2008037813 an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/58A61K8/25A61K8/29A61K8/19A61Q1/02
CPCA61K8/19A61K8/25A61K8/29A61K8/585A61K2800/432A61Q1/02
Inventor 蒲科亢荣敏
Owner SHANGHAI CO FUN BIOTECH
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