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A spumous skin coating agent

A foam-like, coating agent technology, applied in skin care preparations, cosmetics, cosmetic preparations, etc., can solve the problems of high price of n-butane, no record of effect, low flammability, etc., to achieve easy massage, Promote skin blood circulation, excellent skin blood circulation effect

Active Publication Date: 2012-10-03
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is known that by including a propellant consisting only of n-butane and carbon dioxide gas in a stock solution containing an aqueous solution of an active ingredient, it is known that low flammability, excellent low-temperature foamability, and high-temperature Foamable aerosol composition with good safety (patent document 6), but the price of n-butane is high
[0004] Also known is a foamable skin blood circulation accelerator, which is an aerosol agent for the purpose of promoting blood circulation using carbon dioxide gas and hydrocarbon oil at the same time, using specific substances such as isopentane and n-pentane in carbon dioxide Hydrocarbons improve the foam persistence of the foaming agent (Patent Document 7), but there is no description of the effect of maintaining the foam at low temperature and reducing the internal pressure of the pressure vessel.

Method used

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  • A spumous skin coating agent
  • A spumous skin coating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8 and comparative example 1～4

[0050] According to the formula described in Table 1, mix the components other than A and B to prepare a stock solution (liquid component), fill it in a pressure-resistant container, and fill it in the order of hydrocarbon mixture (B) and carbon dioxide (A) to obtain an aerosol composition . After the obtained aerosol composition was stored at 25° C. for 1 week, bubble stability and skin blood flow were evaluated. At this point, the pH was less than 7 in all compositions. Viscosity was measured using a BM type viscometer (Toki Sangyo Co., Ltd.) under the measurement conditions of a measurement temperature of 25° C., a No. 2 spindle of 30 r / min, and 1 minute. However, the compounding quantity of the fragrance|flavor in a table|surface is 0.03 mass %.

[0051]

[0052] (test methods)

[0053] (1) Carbon dioxide concentration

[0054] Bubbles were sprayed in an atmosphere of 25°C, and the carbon dioxide concentration was measured. The carbon dioxide detector uses a carbon...

Embodiment 9～14 and comparative example 5

[0069] According to the formula described in Table 2, the components other than A and B were mixed to prepare a stock solution, and the stock solution and carbon dioxide and hydrocarbon mixed gas were sealed in a pressure-resistant container to obtain an aerosol composition. After the obtained aerosol composition was stored at 25° C. for 1 week, bubble stability and skin blood flow were evaluated. At this point, the pH was less than 7 in all compositions. However, the compounding quantity of the fragrance|flavor in a table|surface is 0.03 mass %.

[0070]

[0071] As a result, in Examples 9 to 14 of the present invention, carbon dioxide was dissolved at a high concentration, and the bubble stability at 25° C. was good, and red flush of the skin was observed. In Comparative Example 5 using only isopentane as the component (B), bubbles tended to drip at low temperature (5° C.).

Embodiment 15 and 16

[0073] The foamy moisturizing lotion (Example 15) and the foamy cosmetic lotion (Example 16) described in Table 3 were prepared, and stored at 25°C for 1 week, and the foam stability and skin blood flow were evaluated. In addition, pH (25 degreeC) of each stock solution was measured, and it described in Table 3 together. However, in the pH measurement, a pH meter (F-52 manufactured by Horiba, Ltd.) was used. The bubble stability was also good, and the effect of promoting blood flow in the skin was also confirmed. However, the compounding quantity of the fragrance|flavor in a table|surface is 0.03 mass %.

[0074] [table 3]

[0075] Composition (mass%)

[0076] * 1: n-butane: isobutane: propane = 71:28:1% by mass

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Abstract

The present invention provides a spumous skin coating agent. Considering security, good spume can be sustained even if under low temperature in aerated solids with internal pressure lower than 0.7 MPa, and the carbon dioxide plays long time of effect on skin and effect of sufficient blood circulation can be obtained. The spumous skin coating agent described in the invention is a mixture of liquidand gas containing ingredients of (A), (B) and (C), wherein mass ratio between (A) and (B) is from 35:65 to 95:5, when a pressure container is stuffed with the mixture, internal pressure under 25 DEGis lower than 0.70 MPa, wherein, (A) is carbon dioxide; (B) is hydrocarbon mixture from 0.1 to 3 quality percentage, as mixture of hydrocarbon selected from carbon number from 3 to 5. in above mixture, while in 35 DEG, the vapor tension is more than 0.1 MPa, and content of satisfied hydrocarbon lower than 0.5 MPa is from 70 to 100 quality percentage; (C) surfactants is from 0.1 to 25 quality percentage.

Description

technical field [0001] The present invention relates to foamed skin coatings containing carbon dioxide. Background technique [0002] Since carbon dioxide (carbon dioxide gas) acts on the skin to promote blood circulation in the skin, various cosmetics containing carbon dioxide have been proposed. For example, there is disclosed a method of supplying a saturated concentration of carbon dioxide at once to cosmetics containing carbon dioxide and supplying a higher concentration of a carbon dioxide-saturated solution in the presence of ethanol having a higher solubility than water (Patent Document 1). There are also known a method of keeping the spray liquid at a high viscosity in order to suppress volatilization of carbon dioxide, and a method of coexisting a polyhydric alcohol at a high concentration in order to keep the carbon dioxide at a high concentration (Patent Documents 2 to 3). [0003] On the other hand, among various aerosols, liquefied petroleum gas (LPG) containi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/31A61K8/02A61Q19/00
Inventor 东条聪清塚蓝子
Owner KAO CORP
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