Moisturizing nano light-screening agent for toning lotion and preparation method of light-screening agent

A technology for lotion and sunscreen, applied in the field of moisturizing nano sunscreen for lotion and preparation thereof, can solve the problems of skin care without any benefit, large particle size of sunscreen, affecting appearance, etc., and achieves improved stability, The effect of good stability and strong covering power

Active Publication Date: 2014-06-25
PROYA COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of sunscreen, in addition to providing the milky appearance of the lotion, is essentially a polymer emulsion, which does not bring any benefits to skin care
In addition, the

Method used

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  • Moisturizing nano light-screening agent for toning lotion and preparation method of light-screening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing a moisturizing nano sunscreen for lotion uses the following steps:

[0021] 1): Weigh 16.67g ethanol, 16.67g PPG-26-butanol-26 and 16.66g PEG-20 hydrogenated castor oil and mix, heat to 50°C, mix well to obtain emulsifier;

[0022] 2): Weigh 50g of emulsifier and 50g of diphenyl dimethicone, slowly add oil to the emulsifier under stirring conditions, heat to 60℃, and mix well;

[0023] 3): The mixture obtained in step 1 is homogenized 3 times through a high-pressure homogenizer at a pressure of 5 MPa and a temperature of 60 ℃ at 3500 rpm, and a cooling device is used at the outlet of the high-pressure homogenizer to ensure the temperature of the mixture at the outlet of the high-pressure homogenizer It does not exceed 70°C, and after homogenization is completed, a moisturizing nano sunscreen for lotion with an average particle size of 250 nm can be obtained.

Embodiment 2

[0025] A method for preparing a moisturizing nano sunscreen for lotion uses the following steps:

[0026] 1): Weigh 47.62g of ethanol, 9.52g of PPG-26-butanol-26 and 9.52g of PEG-40 hydrogenated castor oil and mix, heat to 50℃, and mix well to obtain an emulsifier;

[0027] 2): Weigh 66.66g of the emulsifier obtained in step 1 and 33.34g of diphenylsiloxyphenyl trimethicone, add oil to the emulsifier under stirring conditions, heat to 60°C, and mix Evenly

[0028] 3): The mixture obtained in step 2 is homogenized 5 times through a high-pressure homogenizer at a pressure of 20 MPa and a temperature of 60 ℃ at 3500 rpm. A cooling device is used at the outlet of the high-pressure homogenizer to ensure the temperature of the mixture at the outlet of the high-pressure homogenizer. It does not exceed 70°C, and after homogenization is completed, a moisturizing nano-screening agent for lotion with an average particle size of 200 nm can be obtained.

Embodiment 3

[0030] A method for preparing a moisturizing nano sunscreen for lotion uses the following steps:

[0031] 1): Weigh 41.67g of ethanol, 25.0g of PPG-26-butanol-26 and 8.33g of PEG-60 hydrogenated castor oil and mix, heat to 50°C, and mix well to obtain an emulsifier;

[0032] 2): Weigh 75.0g of the emulsifier obtained in step 1 and 25.0g of propylene glycol dibenzoate, slowly add the propylene glycol dibenzoate to the emulsifier under stirring conditions, heat to 60°C, and mix well;

[0033] 3): The mixture obtained in step 2 is homogenized 8 times through a high-pressure homogenizer at a pressure of 30 MPa and a temperature of 60 ℃ at 3500 rpm. A cooling device is used at the outlet of the high-pressure homogenizer to ensure the temperature of the mixture at the outlet of the high-pressure homogenizer. It does not exceed 70°C, and after homogenization is completed, a moisturizing nano-screening agent for lotion with an average particle size of 150nm can be obtained.

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Abstract

The invention relates to a moisturizing nano light-screening agent for toning lotion and a preparation method of the light-screening agent. The moisturizing nano light-screening agent for toning lotion is prepared by mixing an emulsifying agent with high diopter oil in a mass ratio of (1-5):1, wherein the emulsifying agent comprises ethanol, PPG (Poly Propylene Glycol)-26-butanol polyether-26 and PEG (polyethylene glycol)-n hydrogenated castor oil in a mass ratio of (1-10):(1-3):(0-1), and n is 20, 40, 60 or 80; the high diopter oil is one or mixture of diphenyl polydimethylsiloxane, diphenyl siloxy phenyl trimethicone, propylene glycol dibenzoate and phenyl trimethicone. The moisturizing nano light-screening agent for toning lotion has the advantages that no suspension is required in water, milk white appearance appears in the toning lotion, both the function of the light-screening agent and a moisturizing effect are achieved and the stability of active matters is improved by screening part of lights.

Description

technical field [0001] The invention relates to the technical field of cosmetic preparation, in particular to a moisturizing nano-opacifier for lotion and a preparation method thereof. Background technique [0002] Lotion is usually a liquid skin care cosmetic with a transparent appearance and flow. The lotion can quickly replenish moisture to the skin, but the disadvantage is that the active ingredients added to it are greatly limited, especially some active ingredients that are darker in color and easy to change color, it is difficult to add to a transparent lotion to maintain long-term stability. In order to solve this problem, the existing solution is to add opacifying agents in water, such as styrene / acrylate copolymer emulsion, etc., such as ACUSOL OP301 produced by DOW Company, this type of opacifying agent can provide milky white appearance, and can shield light causing Photochemical reactions of the active ingredients. However, this kind of sunscreen, in addition ...

Claims

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Application Information

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IPC IPC(8): A61K8/92A61K8/891A61K8/86A61K8/37A61Q19/00
Inventor 蒋丽刚毕永贤
Owner PROYA COSMETICS
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