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Cosmetic powder, oily color paste and preparation method thereof

An oil-based colorant and cosmetic technology, applied in the direction of cosmetic preparations, cosmetics, cosmetics, etc., can solve the problems of unstable cosmetic powder dispersion system, increase the difficulty of cosmetic powder dispersion, and insufficient color development of pigments, etc., to achieve color Rich, enhanced coloring and hiding power, low-cost results

Active Publication Date: 2020-06-05
SHANGHAI CO FUN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional cosmetic powders have many shortcomings in the use of cosmetic formulations.
For example, the surface energy level of cosmetic powder is large, and the particles are easy to agglomerate, etc., all of which increase the difficulty of dispersing cosmetic powder
The uneven dispersion of cosmetic powder will cause many problems such as system instability, insufficient color development of pigments, formation of stains or ribbons, etc.
At the same time, the cosmetic powder will generate floating dust during application, which will not only cause the loss of raw materials, but also seriously affect the health of the body and pollute the environment

Method used

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  • Cosmetic powder, oily color paste and preparation method thereof
  • Cosmetic powder, oily color paste and preparation method thereof
  • Cosmetic powder, oily color paste and preparation method thereof

Examples

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preparation example Construction

[0064] The present invention also provides the preparation method of above-mentioned oily color paste, and described preparation method comprises the following steps:

[0065] (1) Mix the oil and dispersant to obtain an oil phase, then add the cosmetic powder to the oil phase to obtain a slurry;

[0066] (2) Dispersing the slurry to obtain an oily color paste.

[0067] Wherein, step (1) is carried out at 75°C to 85°C.

[0068] The slurry described in step (2) is dispersed by grinding, and the grinding and dispersing equipment used is at least one of a sand mill, a colloid mill, and a three-roller machine.

[0069] The preparation method of the above-mentioned oily color paste is simple and controllable, does not produce pollution, and is easy to industrialize. The prepared oily color paste has high solid content, low viscosity, convenient use, safety and non-toxicity.

Embodiment 1

[0072] 5 g of aminopropyltriethoxysilane and 30 g of octyltriethoxysilane were dissolved in 100 g of ethanol to prepare a treatment solution. Then, under high-speed stirring, spray the treatment solution into 1 kg of titanium dioxide, fully mix the treatment solution and titanium dioxide, discharge, bake at 110°C for 3 hours, and jet crush to obtain surface-treated titanium dioxide.

Embodiment 2

[0074] Titanium dioxide in Example 1 is replaced with iron oxide yellow powder.

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Abstract

The invention relates to cosmetic powder, oily color paste and a preparation method thereof. The cosmetic powder is subjected to surface treatment by treating liquid; the treating liquid comprises a first modifier and a second modifier; the first modifier is a silane coupling agent with an active group, the general formula is R1(R2)NR3Si(R4)3-a(OR5)a, and in the formula, R1 and R2 are hydrogen, fatty hydrocarbon, or hydrocarbyl containing heteroatoms, R3 is a branched chain or straight-chain alkylene whose carbon atom quantity is 1 to 10, R4 is hydrocarbyl whose carbon atom quantity is 1 to 6,R5 is hydrocarbyl whose carbon atom quantity is 1 to 4, and a is an integer of 1 to 3; the second modifier is an unmodified silane coupling agent, the general formula is R6SiX3, and in the formula, R6 is fatty hydrocarbon whose carbon atom quantity is 1 to 20, and X is halogen, alkoxy whose carbon atom quantity is 1 to 5, or acyloxy whose carbon atom quantity is 1 to 5. The oily color paste comprises the following components in percentage by mass: 30 to 90 percent of cosmetic powder, 5 to 65 percent of grease and 0.1 to 5 percent of a dispersant. The cosmetic powder subjected to surface treatment has high dispersibility and is applied to the oily color paste of the cosmetics; the oily color paste is simple in composition, high in solid content and low in viscosity.

Description

technical field [0001] The invention relates to the technical field of cosmetic raw materials, in particular to a cosmetic powder, an oily color paste and a preparation method thereof. Background technique [0002] With the improvement of living standards, people's demand for cosmetics is also increasing rapidly. In cosmetics, especially color cosmetics, cosmetic powder is a large amount of raw materials. However, there are many shortcomings in the use of traditional cosmetic powders in cosmetic formulations. For example, the surface energy level of cosmetic powder is large, and the particles are easy to agglomerate, etc., all of which increase the difficulty of dispersing cosmetic powder. However, the uneven dispersion of cosmetic powder will cause many problems such as system instability, insufficient color development of pigments, formation of color spots or color bands, etc. At the same time, cosmetic powders will generate floating dust during application, which will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/58A61K8/29A61K8/19A61Q1/02
CPCA61K8/19A61K8/29A61K8/585A61Q1/02
Inventor 谢旭亢荣敏秦纪华
Owner SHANGHAI CO FUN BIOTECH