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Oil-in-water cosmetic and method for producing same

A technology of oil-in-water cosmetics, which is applied in the field of preparation of oil-in-water cosmetics, which can solve the problems of makeup ingredients falling off, low water resistance, and inability to achieve long-lasting effects

Pending Publication Date: 2021-11-12
LVMH RECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, oil-in-water foundations use a water phase as a continuous phase, which is highly hydrophilic, but has low water resistance and low skin affinity, so their makeup ingredients are easily peeled off from the skin and cannot achieve a long-lasting effect
[0009] While attempts have been made to provide such foundations with a refreshing feel and nourishment while maintaining enough make-up to match recent consumer preferences, this type of conflicting functionality cannot be achieved with existing technology

Method used

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  • Oil-in-water cosmetic and method for producing same
  • Oil-in-water cosmetic and method for producing same
  • Oil-in-water cosmetic and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0124] The method of the first embodiment comprises the following steps (A1) to (A3):

[0125] (A1) A step of combining a heated non-silicone oil-containing oil with a dispersion and one or more nonionic surfactants having an overall HLB value of 6 to 15 to obtain a heated state oil component, said Dispersions are obtained by dispersing hydrophobized inorganic powders in oils of the same type or different types of oils as mentioned above by applying shear forces,

[0126] (A2) a step of stirring said oil component in a heated aqueous component containing an aminoalkylsulfonic acid polymer and an aqueous medium to obtain an oil-in-water dispersion, and

[0127] (A3) A step of cooling the oil-in-water dispersion and adding a hydrophobized inorganic powder, which is the same type or a different type of the above-mentioned hydrophobized inorganic powder, to add at least a part thereof to the aqueous medium.

[0128] These steps are subject to the following conditions (a1) to (a3)...

no. 2 approach

[0137] The method of the second embodiment comprises the following steps (B1) to (B3):

[0138] (B1) a step of combining the heated non-silicone oil-containing oil with a dispersion, one or more nonionic surfactants having an overall HLB value of 6 to 15, and a fatty acid to obtain an oil component in a heated state, said dispersion is obtained by dispersing a hydrophobized inorganic powder in an oil of the same type or a different type of oil than the above-mentioned oils by applying shear force,

[0139] (B2) A step of stirring the oil component in a heated aqueous component containing an aqueous medium, a basic compound, and an aminoalkylsulfonic acid polymer to obtain an oil-in-water dispersion while forming a fatty acid soap , the basic compound forms a fatty acid soap by pairing with the carboxylic acid anion of the fatty acid, and

[0140] (B3) A step of cooling the oil-in-water dispersion and adding a hydrophobized inorganic powder, which is the same type or a differe...

Embodiment 1 to 8 and comparative example 1 to 13

[0149] An oil-in-water cosmetic was prepared by the following method.

[0150] Component A, comprising the ingredients listed as "A" in Tables 1 to 3, was heated to 75°C to obtain a homogeneous solution. Component B, comprising ingredients listed as "B" in Tables 1 to 3, was uniformly dispersed with a three-roll mill disperser. Then, the uniformly dispersed component B was added to the uniformly dissolved component A together with components C and D (comprising components listed as "C" and "D" in Tables 1 to 3, respectively), and the temperature Adjust to 75°C to prepare an oil component.

[0151] Components E, F and G were uniformly dissolved and dispersed at room temperature, respectively, and heated to 75°C as water-based components. Components of F" and "G". Add the oil component to the water component and emulsify the mixture using a homomixer. Then, the emulsion was cooled to room temperature, components H and I containing the components listed as "H" and "I" in Tabl...

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Abstract

An oil-in-water cosmetic is composed of an aqueous phase and an oil phase and comprises hydrophobized inorganic powder, a fatty acid soap, a nonionic surfactant and a hydrophilic polymer, including an oil that contains a non-silicone oil and including hydrophobized iron oxide powder and hydrophobized pigment-grade titanium oxide powder in the oil phase and the aqueous phase, wherein the contents of the hydrophobized pigment-grade titanium oxide powder in the oil phase and in the aqueous phase are, respectively, greater than 0.5 mass% and less than 5 mass%, and greater than 2.5 mass% and less than 20 mass%, the nonionic surfactant has an overall HLB value of 6 to 15, an aminoalkylsulfonic acid polymer is contained as a hydrophilic polymer, and the total non-silicone oil content is greater than 5 mass% and less than 30 mass%.

Description

technical field [0001] The present invention relates to an oil-in-water cosmetic and a method for preparing the oil-in-water cosmetic. Background technique [0002] The level of performance of foundations, cosmetic products used to conceal blemishes or fine lines and improve the aesthetic quality of the skin, has become a major concern for consumers due to their significant impact on the final finish of the makeup look. [0003] Foundations include cake-type foundations, powder-type foundations, cream-type foundations, and liquid-type foundations, wherein liquid-type foundations are divided into foundations based on water-in-oil emulsions and foundations based on oil-in-water emulsions (see, for example, Japan Unexamined Patent Publication No. 2008-44901, or its corresponding US8728503). [0004] Most foundations use water-in-oil emulsions (water-in-oil foundations) because of their high staying power and makeup coverage. [0005] Pigments in water-in-oil foundations are u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/06A61K8/19A61K8/29A61K8/31A61K8/36A61K8/37A61K8/49A61K8/81A61Q1/02
CPCA61K8/062A61K8/19A61K8/29A61K8/361A61K8/37A61K8/4993A61K8/8158A61K8/375A61K8/31A61Q1/02A61K2800/61A61K2800/591A61K8/022A61K8/8188A61K8/86A61K2800/43A61K2800/596A61K2800/612A61K2800/614A61K2800/805A61Q17/04
Inventor K·波田Y·麻美H·乡原迫田刚嘉
Owner LVMH RECH