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Golden spherical pigment for cosmetics and preparation method of pigment

A cosmetic and spherical technology, which is applied in the field of golden spherical pigments for cosmetics and its preparation, can solve the problems of low conversion rate of metal oxide coating, uneven coating, poor skin feel of pigments, etc., and improve the hydrophilic and lipophilic effect , excellent skin feel, effect of reducing impact

Inactive Publication Date: 2017-01-04
GUANGXI CHESIR PEARL MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention discloses a golden spherical pigment for cosmetics and a preparation method thereof, thereby solving the problem of poor skin feeling and high oil absorption of pigments prepared from sheet-layer substrates such as mica flakes in the past, and the problem of using spherical particles as substrates in the prior art. In the process of pigmentation, there are problems such as low metal oxide coating conversion rate on the substrate surface, uneven coating, and poor pigment effect

Method used

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  • Golden spherical pigment for cosmetics and preparation method of pigment
  • Golden spherical pigment for cosmetics and preparation method of pigment
  • Golden spherical pigment for cosmetics and preparation method of pigment

Examples

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Embodiment 1

[0043] Example 1-Preparation method of golden spherical pigment for cosmetics

[0044] It includes the following steps:

[0045] A. 100g average particle size D 50 10μm spherical SiO 2 , Put it into a 2L reactor, add 1000ml of deionized water, stir to make it evenly dispersed, and prepare the first suspension;

[0046] B. The first suspension was heated to 65°C, and the pH of the suspension was adjusted to pH 1.5 with dilute hydrochloric acid, and then 50ml 0.5wt% SnCl was added under constant temperature stirring 4 ·5H 2 O solution, and add 20% sodium hydroxide dropwise during this process to keep the pH constant; when the SnCl 4 ·5H 2 After the addition of O solution, continue constant temperature stirring for 15 minutes to obtain the second suspension;

[0047] C. The second suspension was heated to 78℃, and the pH of the suspension was adjusted to pH 2.5 with 20% sodium hydroxide, and then 2mol / L TiCl was added under constant temperature stirring. 4 Solution and 0.7mol / L FeCl 3 ...

Embodiment 2

[0051] Example 2-Preparation method of golden spherical pigment for cosmetics

[0052] It includes the following steps:

[0053] A. 100g average particle size D 50 5μm spherical SiO 2 Put it into a reactor with a volume of 2L, add 1000ml of deionized water, stir to make it evenly dispersed, and prepare the first suspension;

[0054] B. The first suspension was heated to 70°C, and the pH of the suspension was adjusted to pH 1.0 with dilute hydrochloric acid, and then 100ml 0.5wt% SnCl was added under constant temperature stirring 4 ·5H 2 O solution, and add 20% sodium hydroxide dropwise during this process to keep the pH constant; when the SnCl 4 ·5H 2 After the addition of O solution, continue constant temperature stirring for 20 minutes to obtain the second suspension;

[0055] C. The second suspension was heated to 70°C, and the pH of the suspension was adjusted to pH 1.5 with 20% sodium hydroxide, and then 2mol / L TiCl was added under constant temperature stirring 4 Solution, unt...

Embodiment 3

[0060] Example 3-Preparation method of golden spherical pigment for cosmetics

[0061] It includes the following steps:

[0062] A. 100g average particle size D 50 1μm spherical SiO 2 Pour into deionized water, add 1000ml of deionized water, stir to make it evenly dispersed, and prepare the first suspension;

[0063] B. The first suspension was heated to 68°C, and the pH of the suspension was adjusted to pH 1.4 with dilute hydrochloric acid, and then 200ml 0.5wt% SnCl was added under constant temperature stirring 4 ·5H 2 O solution, and add 20% sodium hydroxide dropwise during this process to keep the pH constant; when the SnCl 4 ·5H 2 After the addition of O solution, continue to stir at constant temperature for 30 minutes to obtain the second suspension;

[0064] C. The second suspension was heated to 80°C, and the pH of the suspension was adjusted to 1.8, and then 2mol / L TiCl was added under constant temperature stirring 4 Solution until the color of the suspension becomes light ...

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Abstract

The invention relates to a golden spherical pigment for cosmetics and a preparation method of the pigment. The pigment takes spherical SiO2 as a base material, the surface of the base material is at least coated with a SnO2 coating, a TiO2 coating and a Fe2O3 coating, wherein SnO2 makes contact with the surface of the base material; the method particularly comprises the steps that spherical SiO2 is prepared into suspension, a SnCl4 solution, a TiCl4 solution, a FeCl3 solution, AlCl3 and one of dimethicone, sodium silicate and a coupling agent are sequentially added, and after filtering, drying and calcining are conducted, the pigment is obtained. The prepared product has the advantages of being low in skin sticky feeling, very good in skin feeling and obvious in skin-friendly effect, and the golden spherical functional pigment which has the hiding power and the fading effect is widely applied to the cosmetics, ink, paint, plastic and the like.

Description

Technical field [0001] The invention belongs to the field of fine chemical materials, and specifically relates to a golden spherical pigment for cosmetics and a preparation method thereof. Background technique [0002] At present, most of the substrates used in pearlescent pigments are lamellar substrates such as mica flakes, and many oxides can be deposited on their surface to show a unique pearlescent effect, but because the pearlescent pigments use large particle size ( Its particle size is above 10μm) natural mica particles are made as a pigment substrate, and the surface coating of this kind of substrate is mostly nano-scale titanium dioxide distributed in islands, so in the field of cosmetics, its skin feel Poor and not delicate enough. [0003] In the research process of modifying the performance of pigments, although the poor performance of pigments is largely due to the types of pigment substrates, it is rare in this industry to abandon flake substrates such as mica flake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/29A61K8/26A61K8/19A61K8/25A61Q1/02C09C1/28C09C3/06
CPCA61K8/25A61K8/19A61K8/26A61K8/29A61K2800/413A61K2800/42A61Q1/02C09C1/28C09C3/063C09C2200/1004C09C2200/401C09C2200/505
Inventor 熊小寒林正交章梦令余慧忠黄志仁林敏立郑国旺韦贝佩
Owner GUANGXI CHESIR PEARL MATERIAL CO LTD