JPS6140206A - Cosmetic - Google Patents

Abstract

PURPOSE:Cosmetic providing improved refreshing feeling with a small amount of a carbonic acid gas or a carbonic aicd gas-evolving substance blended, obtained by mixing a refrigerant-containing cosmetic composition with the carbonic acid gas or the carbonic acid gas-evolving substance. CONSTITUTION:A refrigerant-containing cosmetic composition is blended with a carbonic acid gas or a carbonic acid gas-evolving substance having vasodilating action. An amount of the refrigerant blended is preferably 0.001-5wt%, and that of the carbonic acid gas is preferably >=60ppm. The refrigerant-containing cosmetic composition is put in a pressure container, a high-pressure gas carbonic acid gas is introduced into it, or a carbonic acid gas-evolving source such as dry ice, etc. is added to the container, and it is closed. The cosmetic is applied by a method such as jetting contenst in use, supporting a carbonate and an acid in the absence of water on a carrier such as nonwoven fabric, cloth, etc., supporting the refrigerant-containing cosmetic composition together, applying it to the affected part to be coated in use, followed by supplying water to it so that a carbonic acid gas is evolved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to cosmetics, and more particularly to cosmetics containing a refreshing agent and carbon dioxide gas or a carbon dioxide gas generating substance.

[Conventional technology]

Conventionally, menthol, the main component of peppermint oil, has been known as a compound that has a physiological cooling effect on the skin and the mucous membranes of the mouth.
It is used in toothpaste, cigarettes, etc., and as a cooling agent in various cosmetics and ointments.

The cooling effect of refreshing agents such as menthol is due to the physiological effect that refreshing agents have by directly acting on the peripheral sensory nerves in the human body.In other words, the cooling agent directly stimulates the cold receptors that sense the cold in the peripheral nerves. Give.

It is thought that this in turn stimulates the central nervous system.

As described above, the use of refreshing agents as a physiological cooling agent is well established, but the above-mentioned cooling effect is temporary and not sustainable, and menthol, for example, has a strong odor, so it is difficult to make cosmetics. When blended into cosmetics, etc., they often spoil the elegant fragrance of cosmetics, and the scope and amount of their use has been limited.

[Problems to be solved by the present invention]

Therefore, there has been a demand for the development of cosmetics that can provide an excellent refreshing feeling even when the amount of the refreshing agent itself is small.

[Means for solving problems]

The present inventors have conducted various studies on improving the cooling effect of refreshing agents, and as a result, it is known that refreshing agents have a vasodilatory effect, and they are also used clinically as carbon dioxide gas baths for rehabilitation, etc. The present invention has been completed based on the discovery that the use of carbon dioxide gas or a substance that generates carbon dioxide can significantly increase the cooling sensation compared to using a refreshing agent alone.

That is, the present invention provides a cosmetic product characterized in that a cosmetic composition containing a refreshing agent is blended with carbon dioxide gas or a carbon dioxide gas generating substance.

Examples of the cosmetics of the present invention include the following.

(2) A cosmetic composition containing a conventionally known refreshing agent is placed in a pressure-resistant container, and high-pressure carbon dioxide gas is blown into the container, or a carbon dioxide gas generating source such as carbonate and acid or dry ice is added and the container is sealed.

When using this cosmetic, the contents are discharged and applied to the area to be applied.

(2) Carbonate and acid are supported on a single carrier such as nonwoven fabric, cloth, paper, etc. in the substantial absence of water.

Furthermore, a known refreshing agent-containing cosmetic composition is also supported on this carrier.

When using this cosmetic, it is applied to the area to be applied, and water is supplied to the cosmetic by placing a steamed towel on top of it or adding water.

The carbonate and acid are reacted to generate carbon dioxide gas.

(2) Support the carbonate and acid on two different carriers. One or both of these carriers may be supported with a known cosmetic composition containing a refreshing agent, as in (2), or may be allowed to retain moisture.

When using this cosmetic, it is applied in layers to the area to be applied, and if necessary (if the cosmetic does not contain water), water is supplied in the same manner as in (2) to generate carbon dioxide gas.

Cooling agents used in the present invention include camphor, menthol, methyl salicylate, cineole, menthone, piperitone, borneol, and β-pinene.

Examples include menthyl acetate and nonylic acid barrylamide, among which camphor, menthol, pipette IJ
) is particularly preferred. This refreshing agent is used by blending it with a solvent such as water or water-lower alcohol. It is preferable that the refreshing agent is blended in the cosmetic composition of the present invention in an amount of 0.001 to 5% by weight (hereinafter simply indicated by "C"). If it is less than 0%, a sufficient effect will not be obtained, and if more than 5% is added, it will give an unpleasant irritation to the skin, which is not preferable.

On the other hand, it is known that the carbon dioxide gas used in ① exists as CO2 molecules when the pH of the solution in which it is dissolved is acidic, and exhibits a vasodilatory effect and an effect of promoting transdermal absorption. There is. Therefore, the liquid property of the cosmetic of the present invention is pH 7.
Hereinafter, it is particularly preferable to adjust the pH to 4.5 to 6.5. Note that the pH of the cosmetic composition becomes even more acidic when carbon dioxide gas is pressurized and dissolved into the cosmetic composition, but the pH may be adjusted so that the final pH falls within the above range. This p
As the H regulator, organic acids such as citric acid, tartaric acid, and lactic acid or salts thereof, phosphoric acid or salts thereof, and solid acids such as acid clay are preferably used.

Further, carbonates used in the present invention include 1, for example, sodium hydrogen carbonate, sodium carbonate, sodium sesquicarbonate, potassium hydrogen carbonate, potassium carbonate, potassium sesquicarbonate, ammonium hydrogen carbonate salt, ammonium carbonate salt,
Examples include ammonium sesquicarbonate salts, and these can be used alone or in combination of two or more.

Furthermore, as the acid, organic acids and inorganic acids can be used, but water-soluble and solid acids are preferred.

Examples of organic acids include straight chain fatty acids such as formic acid, acetic acid, propionic acid, butyric acid, and valeric acid; oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, fumaric acid, maleic acid, and phthalic acid. , dicarboxylic acids such as isophthalic acid and terephthalic acid; acidic amino acids such as glutamic acid and aspartic acid; glycolic acid, lactic acid, hydroxyacrylic acid, α-oxybutyric acid, glyceric acid, tartronic acid,
Malic acid, tartaric acid, citric acid, salicylic acid (o, m.

p), oxyacids such as gallic acid, mandelic acid, trobic acid, ascorbic acid, gluconic acid; cinnamic acid, benzoic acid, phenylacetic acid, nicotinic acid, kainic acid, sorbic acid, pyrrolidonecarboxylic acid, trimellitic acid, Examples include benzenesulfonic acid, toluenesulfonic acid, and acid salts of these organic acids. Examples of inorganic acids include phosphoric acid, potassium dihydrogen phosphate, sodium dihydrogen phosphate, sodium sulfite, potassium sulfite, sodium pyrosulfite (sodium metabisulfite), potassium pyrosulfite (potassium metabisulfite), acidic Sodium xametaphosphate,
Examples include acidic potassium hexametaphosphate, acidic sodium pyrophosphate, acidic potassium pyrophosphate, and sulfamino acid. Among these, aliphatic dicarboxylic acids such as co/S-phosphoric acid, fumaric acid, phosphoric acid, and acid salts thereof are preferred.

In the present invention, it is preferable to adjust the pH of the carbon dioxide gas generating atmosphere to 4 to 7 by adjusting the amounts of these carbonates and acids. For example, when used in combination with a known cosmetic composition containing a refreshing agent, the amounts of carbonate and acid are preferably 1 to 20% by weight, particularly 2 to 10% by weight of the total composition. It is preferable that the carbon dioxide concentration in the cosmetic composition of the present invention is 60 ppm or more.
If the amount is less than this, sufficient effects will not be achieved.

In order to prepare the cosmetic of the present invention according to aspect (2), a cosmetic composition is placed in a pressure-resistant container and a high-pressure gas is sealed therein, and a cosmetic composition is prepared in which a carbonate such as sodium bicarbonate is contained in a pressure-resistant container. A method is adopted in which methods include adding a pH adjuster to the container to generate carbon dioxide gas and immediately sealing it, or placing dry ice pellets in the container and sealing it, but in particular, enclosing high-pressure gas. The method is preferred.

When this is done, part of the carbon dioxide gas is dissolved and blended into the cosmetic, and part of it is present in the container as a gas. In the present invention, it is important that the carbon dioxide gas is dissolved in the cosmetic and is blended, and it is preferable that the carbon dioxide concentration is 601) pm or more, and if it is less than this, a sufficient refreshing feeling will not be obtained. Adjustment of the blended amount of carbon dioxide gas, which cannot be expected and the effects of the present invention cannot be obtained, is possible by injecting carbon dioxide gas (
It is generally preferable to set the pressure in the container to 1.2 to 8) g/Cl1 (gauge pressure) at a temperature of 35°C.

In addition, the pressure-resistant container used in the present invention must be able to withstand the above-mentioned pressure and keep the cosmetic in a sealed state until it is used after preparation. Synthetic resin containers such as polycarbonate-based resins and polycarbonate-based resins, and glass containers are used.

On the other hand, if the diameter of the discharge nozzle is small, the filling liquid is sprayed in the form of mist, and if the diameter is large, the filling liquid is sprayed in the form of foam or liquid. The spray form also differs depending on the internal pressure of the can, but generally the diameter of the discharge nozzle of an aerosol spray container is 0.3 or less, and when this is applied to the cosmetic of the present invention, it is sprayed in a mist and releases carbon dioxide gas. Since it scatters quickly, sufficient effect cannot be obtained. In order to further enhance the effects of the present invention, it is necessary to lengthen the residence time of carbon dioxide gas in the cosmetic, so the cosmetic of the present invention is applied directly to the scalp in foam or liquid form without adhering to the hair. Foaming on the scalp is preferred. For this reason, the diameter of the discharge nozzle is set to 0.3-1.5 wrrx, and the length is set to 1.
It is preferable to set it to 5 crn. Furthermore, in order to prevent the amount of dissolved carbon dioxide gas from decreasing due to a decrease in the internal pressure of the can during use, and to maintain a constant injection condition, a mini cylinder of carbon dioxide gas is built into the container. It is preferable to combine this with an aerosol injection device such as that disclosed in Japanese Patent Application Laid-Open No. 57-153752 which supplies fresh carbon dioxide gas. In this way, the carbon dioxide concentration can be maintained constant from the beginning of use until the end of use.

In addition to the above-mentioned essential ingredients, ingredients used in ordinary cosmetics, such as oily bases, emollients, gelling agents, various emulsifiers, fragrances, etc.
Preservatives such as parahydroxybenzoic acid ester, antioxidants such as butylhydroxyanisole, coloring agents such as dyes,
O bactericidal agents such as hinokitiol, wetting agents such as propylene glycol, coating agents, thickeners, blood circulation promoters, anti-inflammatory agents, vitamins, bactericidal agents, etc. can be appropriately blended.

〔effect〕

Since the cosmetic composition of the present invention obtained in the above-mentioned manner has an excellent cooling effect, the amount of the cooling agent itself can be slightly reduced, and it is also possible to prevent fragrance from being added to the cosmetic composition.

〔Example〕

Next, the present invention will be explained with reference to Examples.

Example 1 Hair tonic: The relative hair tonic shown in Table 1 was prepared, and a panel of 10 people evaluated its refreshing feeling and odor through a sensory test.
Ta. The evaluation was expressed as an absolute evaluation based on the following criteria. The results are shown in Table 2.

Bottom margin Table 1 (Production method 11) Cooling agent and pH [Membrane agent was added to a 50 V/V '16 ethanol aqueous solution, stirred thoroughly, and then placed in a pressure-resistant container, which was filled with carbon dioxide gas.

(Evaluation criteria) +3 Very strong.

+2 Strong.

+1 I feel it faintly.

0 I don't feel it.

〔result〕

Table 2 The numbers in the table indicate the average values of 10 people.

From the evaluation results, it is clear that the product of the present invention, which contains carbon dioxide gas and a refreshing agent, has a superior refreshing feeling and has less odor than the comparative product.

Example 2 Hair tonic: (Composition) ■Ethanol 50.0 (thi)■Carbon dioxide 1.0 ■Menthol 0.05■Hinokitiol 0.05■Lactic acid
0.133 ■ Sodium lactate
0.3 ■Fragrance Appropriate amount■Water Remainder (manufacturing method) Mix ■, ■~■ at room temperature, place in a pressure-resistant container, attach an injection device, seal, and fill with ■ to prepare a product.

The resulting hair tonic has an excellent cooling sensation.

Moreover, there was no menthol smell.

Example 3 Skin lotion: (composition) ■ Ethanol 10.0 (chi) ■ Carbon dioxide gas 1.0 ■ Camphor
0.1 ■ d4-α-tocopherol acetate 0.05 ■ Lactic acid
0.133 ■ Sodium lactate
0.3 ■ Polyoxyethylene (20)
Hydrogenated human oil 0.5 ■Fragrance Appropriate amount ■Water Remainder (manufacturing method) ■, ■~■ are mixed at room temperature, placed in a pressure-resistant container, an injection device is attached, the container is sealed, and the product is filled with ■.

The resulting skin lotion had an excellent cooling sensation and no camphor odor.

Example 4 Shampoo: (Composition) ↓ ■ Coconut fatty acid jetanolamide 3.0 ■ Carbon dioxide gas 1.0 ■ Piperitone 0.5 ■ Milk Ho
, laa ■ Sodium lactate 0.3 ■ Flavoring appropriate amount ■ Water
Remaining portion (manufacturing method) Mix ①, ②, and ② to ③ at room temperature, put it in a pressure-resistant container, attach an injection device, seal it, and fill it with ③ to make a product. The resulting shampoo had an excellent cooling sensation.

Example 5 Hair rinse: (Composition) ■Distearyldimethylammonium chloride 2,
0%■Stearyl alcohol
1.0 ■ Carbon dioxide gas
□、0■ Menthol
0.2■ Breasts 1! IN
O, 133 ■ Sodium lactate
0P3■Fragrance Appropriate amount■Water Remainder (manufacturing method) Heat and mix ■, ■, ■, ■ at 7θ℃, and add here, ■, ■
, (2) are mixed and dissolved and heated to 70°C, then emulsified, returned to room temperature, placed in a pressure-resistant container, fitted with an injection device and sealed, and filled with (2) to produce a product. The obtained hair rinse had an excellent refreshing feeling.

that's all

Claims (1)

[Scope of Claims] 1. A cosmetic comprising a cosmetic composition containing a refreshing agent and a carbon dioxide gas or a carbon dioxide generating substance added thereto. 2. The cosmetic according to claim 1, wherein the amount of the refreshing agent is 0.001 to 5% by weight. 3. The cosmetic according to claim 1, which contains carbon dioxide in an amount of 60 ppm or more.