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Hydrophobic modification method for powder composition and cosmetic containing same

A technology of hydrophobic modification and composition, which is applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., and can solve the problems of high cost and low production efficiency

Pending Publication Date: 2022-07-01
SHANGHAI CHUANGYUAN COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This modification method for a single powder is beneficial to the production of small quantities and large quantities (such as the surface hydrophobization treatment of titanium dioxide in industry), but for the multi-category and small-batch cosmetics industry, it appears that the production efficiency is low. , and the cost is higher

Method used

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  • Hydrophobic modification method for powder composition and cosmetic containing same
  • Hydrophobic modification method for powder composition and cosmetic containing same
  • Hydrophobic modification method for powder composition and cosmetic containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0073] Embodiment 1-3: the formula and process of loose powder containing the powder composition processed by this method

[0074] Prepare loose powder according to the formula and addition order in Table 1. The specific preparation process is as follows: add phase A to the mixing device after weighing according to the formula, and slowly add phase B into phase A under low-speed stirring, and the dropwise addition is completed. Then continue to stir for 15 minutes until phase B is evenly mixed in phase A. The mixed powder is heated and dried at a temperature of 60 to 150 degrees Celsius, and the drying time is 0.5 to 8 hours. After drying, it is cooled to room temperature, and phase C is added to mix evenly, sieved and packaged.

[0075] Table 1

[0076]

[0077]

[0078] The test results are shown in Table 1 above. Compared with the loose powder in Comparative Example 1, the loose powders hydrophobically modified by the method of the present invention in Examples 1-3 a...

Embodiment 4-5

[0079] Example 4-5: Eye shadow and process containing powder composition treated by this method

[0080] Specifically, Example 4 is a highlight eye shadow, and Example 5 is a matte eye shadow. Prepare according to the formula and order of addition in Table 2. The specific preparation process is as follows: add phase A and phase B into the reactor in proportion, and stir at high speed for 15 minutes; under continuous stirring, the reactor is heated to 60-150 degrees Celsius, and the temperature is kept for 0.5 to 8 After 30 minutes of stirring, the obtained cosmetic composition was transferred to a specific grinding tool and pressed into shape.

[0081] Table 2

[0082]

[0083]

[0084] The test results are shown in Table 2 above. Compared with Comparative Example 2-3, the powder cake after hydrophobic modification by the method of the present invention in Example 4-5 is softer and more uniform in appearance, full in color, good in smoothness and spreadability, and has ...

Embodiment 6-7

[0085] Example 6-7: Formula and process of emulsified (cream) BB cream containing the powder composition treated by this method

[0086] Prepare according to the formula and order of addition in Table 3, and the specific preparation steps are as follows:

[0087] 1) Add phase A and phase E to the reactor in proportion, and stir at a high speed for 15 minutes; under continuous stirring, the reactor is heated to 60-150 degrees Celsius, and is incubated for 0.5 to 8 hours;

[0088] 2) After cooling to 50 degrees, add phase B to the reactor, stir for 30 minutes, transfer the composition to a three-roll mill and grind it into a slurry;

[0089] 3) The milled color paste is added to the weighed phase C, homogenized for 15 minutes and then included in the D phase in proportion, and stirred at 500 rpm for 15 minutes;

[0090] 4) Filling after cooling to room temperature to obtain a water-in-oil liquid foundation.

[0091] table 3

[0092]

[0093]

[0094] The test results ar...

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Abstract

The invention provides a method for simultaneously carrying out surface hydrophobic modification on a powder composition by using a physical or chemical method in the presence of a hydrophobizing agent, and a cosmetic containing the hydrophobically modified powder composition. According to the method, surface hydrophobic modification is simultaneously carried out on a powder composition formed by pre-mixing a plurality of powders with different types, shapes, colors and particle sizes in the presence of a hydrophobizing agent, so that each component of the composition has a hydrophobic surface. The surface water contact angle of the powder composition modified by the method is greater than 90 degrees, and the powder composition has smooth and soft surface touch feeling and more gorgeous surface effect and can be endowed with good use feeling.

Description

technical field [0001] The present invention relates to the field of cosmetics, in particular to a method for hydrophobic modification of powder compositions and cosmetics containing the same. Background technique [0002] Using a hydrophobizing agent to modify the surface of a single type of powder by physical or chemical methods, so that the modified powder has hydrophobic and lipophilic properties, which has been widely used in industrial fields. In modern cosmetics, the use of powder materials with surface hydrophobic treatment to improve the cosmetic durability (CN 104411285 A), improve the touch (CN104411284 A) and cosmetic storage and production stability (CN 104910337 A, CN 102368993 A) is a A method well known in the industry and very effective. Among many hydrophobization treatment methods, the method of using alkyl alkoxysilane (silane coupling agent) as a hydrophobizing agent to anchor long-chain alkyl groups on the target powder through chemical modification is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/26A61K8/25A61K8/19A61K8/36A61K8/58A61K8/02A61Q19/00A61Q1/10
CPCA61K8/26A61K8/25A61K8/19A61K8/361A61K8/585A61K8/022A61Q19/00A61Q1/10A61K2800/805A61K2800/10
Inventor 张云飞曾四立徐金萍
Owner SHANGHAI CHUANGYUAN COSMETICS
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