JP2001172124A - Aerosol cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol cosmetic having excellent storage stability of included poly-unsaturated fatty acids and vegetable components and exhibiting extremely low deterioration of the color and smell. SOLUTION: The aerosol cosmetic contains (A) a component selected from poly-unsaturated fatty acid, its derivative and a vegetable component, (B) an aliphatic carboxylic acid selected from hydroxycarboxylic acid, dicarboxylic acid and tricarboxylic acid or its salt and (C) an aqueous medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an aerosol cosmetic containing a plant component or a polyunsaturated fatty acid or a derivative thereof and having little odor or color deterioration over time.

[0002]

2. Description of the Related Art Ingredients obtained by extracting, distilling, squeezing, etc. from plants have effects on the human body such as moisturizing, whitening, promoting blood circulation, astringency, tightening of skin, hair growth, hair growth, sterilization and the like. However, in recent years, it has been favorably used in skin care cosmetics, hair cosmetics, skin cleansing agents, makeup cosmetics and the like.

It is widely known that polyunsaturated fatty acids such as linoleic acid and linolenic acid are so-called essential fatty acids and their derivatives and metabolites play an important nutritional role. It has also been confirmed that a skin care effect can be obtained by the application of.

[0004] However, many of these plant components, polyunsaturated fatty acids and derivatives thereof are unstable, and there is a problem in that the odor and color of products containing these compounds with time deteriorate. In general, various stabilizers such as antioxidants have been proposed as stabilization methods for cosmetic compositions and the like, but it is difficult to completely suppress deterioration of products.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a cosmetic composition which contains a generally unstable plant component or a polyunsaturated fatty acid or a derivative thereof, and which does not deteriorate in odor or color even after long-term storage. The purpose is to do.

[0006]

The present invention relates to (A) a component selected from polyunsaturated fatty acids and their derivatives and plant components, and (B) an aliphatic carboxylic acid selected from hydroxycarboxylic acids, dicarboxylic acids and tricarboxylic acids. Or a salt thereof,
And (C) an aerosol cosmetic containing an aqueous medium.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The plant component of the component (A) used in the present invention is a component itself collected from a plant irrespective of any means, which is not modified by a chemical reaction or the like. The type of plant is not particularly limited, and may be appropriately selected from the plant components described in, for example, Fragrance Journal Extra Edition No. 1 (1979) and Fragrance Journal Extra Edition No. 6 (1986) according to the purpose. can do. Examples of the method for preparing the plant component include solvent extraction, supercritical extraction, steam distillation, and pressing. Particularly, plant extracts obtained by solvent extraction are widely used in view of cost, workability, quality, and the like, and essential oils obtained by steam distillation or the like are also preferably used. Also, commercially available plant extracts, essential oils and the like can be used.

[0008] Solvents used for solvent extraction include hydrocarbons such as squalane, n-hexane and toluene; acetone; ethyl acetate; alcohols such as ethanol, 1-propanol and 2-propanol; glycerin, ethylene glycol, propylene glycol, and the like. Polyhydric alcohols such as 1,3-butylene glycol and low molecular weight polyethylene glycol; water; and the like, and these can be used alone or in combination of two or more. The obtained crude extract can be used as it is, and can be used as it is, after concentration; transsolution into another kind of solvent; use after performing purification steps such as column chromatography, gel filtration, activated carbon treatment, recrystallization, etc. You can also.

On the other hand, the polyunsaturated fatty acid of the component (A) used in the present invention refers to a long-chain fatty acid having two or more double bonds in a hydrocarbon chain, such as linoleic acid, α-linolenic acid, γ -Linolenic acid, arachidonic acid, eicosapentaenoic acid, docosahexaenoic acid and the like. In addition, examples of these derivatives include salts and esters. As salts of polyunsaturated fatty acids, for example, sodium, potassium,
Examples thereof include alkali metal salts such as calcium or alkaline earth metal salts, and amine salts such as triethanolamine and monoethanolamine. Examples of polyunsaturated fatty acid esters include monoglyceride, diglyceride, and triglyceride, which are esters with glycerin; polyglycerin fatty acid esters, which are esters with polyglycerin; sphingolipids, lecithins, and the like. These can be used in isolation or as a mixture. Natural oils and fats, such as vegetable oils such as rose oil, rosehip oil, borage oil, and sesame oil, and fish oils, which contain a large amount of triglycerides having a high polyunsaturated fatty acid content, can be used as they are or after purification. As these natural fats and oils, those having a polyunsaturated fatty acid content of 30% by weight or more in the total fatty acid composition are preferred from the viewpoint of skin care effect. Note that these polyunsaturated fatty acids are not included in the aliphatic carboxylic acid as the component (B) in the present invention.

The component (A) can be used either alone or in combination of two or more. The amount of the component (A) in the aerosol cosmetic composition of the present invention is not particularly limited, and is appropriately determined according to the purpose of use. can do.

[0011] Among the aliphatic carboxylic acids that are the component (B),
As hydroxycarboxylic acids, glycolic acid, lactic acid,
Malic acid, tartaric acid, citric acid, etc., and dicarboxylic acids include oxalic acid, malonic acid, succinic acid, glutaric acid, maleic acid, fumaric acid, citraconic acid, etc., and tricarboxylic acids include aconitic acid, etc. Is mentioned. Examples of the salts of these aliphatic carboxylic acids include alkali metal salts, alkaline earth metal salts, and amine salts. These components (B) can be used alone or in combination of two or more, and the amount thereof is not particularly limited. As the acid form (excluding the neutralizing agent in the case of a neutralized salt, the same applies hereinafter), 0.00% of the total composition excluding the propellant
5% by weight or more, particularly preferably 0.05% by weight or more, and from the viewpoint of preventing precipitation of crystals and the like, 5% by weight or less as an acid form,
Particularly, the content is preferably 3% by weight or less. It is desirable that the component (B) is dissolved in the aqueous medium of the component (C) in order to exert its effects effectively.

Further, when a compound selected from (D) iminocarboxylic acid, organic phosphoric acid and salts thereof is further used in combination as a stabilizer other than the component (B), the stabilizing effect can be further enhanced, which is preferable. . As iminocarboxylic acids,
Ethylenediaminetetraacetic acid and the like, organic phosphoric acid include hydroxyethanediphosphonic acid and the like, and salts thereof include alkali metal salts, alkaline earth metal salts and amine salts. The amount of the component (D) to be added to the aerosol cosmetic composition of the present invention is not particularly limited, but is preferably 0.005% by weight or more of the total composition excluding the propellant as an acid type in order to exhibit a sufficient effect. In consideration of the above, it is preferable to set the acid type to 1% by weight or less. These (D)
It is desirable that the component is also dissolved in the aqueous medium of the component (C) in order to effectively exert its effect.

When a polyunsaturated fatty acid is used as the component (A), the use of an oil-soluble antioxidant as a stabilizer further enhances the stabilizing effect. Here, as the oil-soluble antioxidant, tocopherols, vitamin E
Derivatives, ascorbic acid derivatives, sesamin as antioxidant in sesame oil, dibutylhydroxytoluene, butylhydroxyanisole and the like. The amount of these oil-soluble antioxidants to be added to the aerosol cosmetic composition of the present invention is not particularly limited, but is preferably 0.01% by weight or more of the whole composition excluding the propellant, in order to exhibit a sufficient effect. In consideration of the above, the content is preferably set to 1% by weight or less.
It is desirable that these oil-soluble antioxidants are dissolved in the oil phase containing the component (A) in order to exert their effects effectively.

As the aqueous medium of the component (C), in addition to water such as pure water, ion-exchanged water, alkali ionized water, deep water, wave water and natural water, if necessary, methanol, ethanol, propanol and the like can be used. Lower alcohols; polyhydric alcohols such as glycerin, ethylene glycol, propylene glycol, isoprene glycol, 1,3-butylene glycol, 1,3-propanediol, and 1,2-pentanediol;
Polyethylene glycols having a molecular weight of 1000 or less can be used.

The amount of the component (C) to be added to the aerosol cosmetic composition of the present invention is not particularly limited.
99% by weight, especially 60-95% by weight, is preferred.

In addition, the aerosol cosmetic of the present invention contains components such as surfactants, oils, medicinal agents, salts, amino acids, and saccharides which are usually used in cosmetics as long as the effects of the present invention are not impaired. can do.

The pH of the aerosol cosmetic of the present invention is not particularly limited, but is preferably 4 to 9 in view of the stability of the component (A). In particular, by adjusting the pH to a weakly acidic pH of 4 to 7, it is possible to obtain an excellent preservative property without using a preservative separately.
preferable.

The form of the aerosol cosmetic of the present invention as an aerosol is not particularly limited. The material and shape of the container are not particularly limited, and a double container or the like may be used.

In the aerosol cosmetic of the present invention, a propellant generally used for aerosol products can be used, and specifically, a liquefied gas such as LPG and dimethyl ether;
Examples thereof include a compressed gas such as a nitrogen gas, a carbon dioxide gas, and an inert gas. From the viewpoint of added value as a cosmetic, it is preferable to use a compressed gas.

When filling the product, it is preferable to perform degassing at the same time as crimping to reduce air remaining in the can. Such degassing operation is more effective in stabilizing the contents. For example, it is preferable to perform the deaeration operation at a pressure of 48 kPa or less.

[0021] The dosage form of the aerosol cosmetic of the present invention as a discharged product is not particularly limited.
Any of sherbet, gel, foam, mist, and liquid may be used. Among them, it is particularly preferable to use a foam or a mist in consideration of the point that coloring is not conspicuous at the time of ejection and the point that the fragrance is easily volatilized. The use is not particularly limited, and may be any of creams, lotions, emulsions, serums, makeup cosmetics, skin cosmetics such as shaving cosmetics, hair cosmetics, skin and hair cleansing agents, and the like. .

[0022]

EXAMPLES Examples 1 and 2 and Comparative Examples 1 and 2 Skin cosmetics shown in Table 1 were prepared and their storage stability was evaluated.

(Preparation method) At room temperature, components 1, 2, 4, and 6 to
After dissolving 9 in water, component 3 was added to adjust the pH to 6. Further, components 5 and 10 were added to prepare an aerosol stock solution. Next, 100 parts of the stock solutions of Examples 1 and 2 and Comparative Example 1 and 5 parts by weight of LPG were each filled in an aerosol can. At the time of crimping, a degassing operation was performed at 4 kPa. The composition of Comparative Example 2 was filled in a polypropylene sample bottle.

(Evaluation Method) The color and odor of the sample when stored at 45 ° C. for 3 months were evaluated according to the following criteria. The color was evaluated immediately after being discharged into the transparent container, and the odor was similarly evaluated for the discharged material. The results are shown in Table 1.

(Evaluation Criteria) A: No change is observed B: A slight change is observed (a level at which there is no problem in product characteristics) C: A clear change is observed (a problem exists in product characteristics)

[0026]

[Table 1]

Examples 3 and 4 and Comparative Examples 3 and 4 Skin cosmetics shown in Table 2 were prepared, and their storage stability was evaluated.

(Preparation method) After dissolving the components 1, 3, 10 and 11 in water at room temperature, the component 2 was added to adjust the pH to 5 to obtain an aqueous phase. Components 4 to 9 were mixed, heated to 75 ° C, and uniformly dissolved to form an oil phase. An aqueous phase heated to 75 ° C. was added to the oil phase, and the mixture was sufficiently stirred and cooled to 30 ° C. to prepare an aerosol stock solution. Next, 100 parts by weight of this stock solution and 5 parts by weight of carbon dioxide were each filled in an aerosol can. In addition,
At the time of crimping, a degassing operation was performed at 4 kPa. In Comparative Examples 3 and 4, the stock solution was filled in a polypropylene sample bottle.

(Evaluation Method) The color and odor of the sample when stored at 5 ° C. or 50 ° C. for one month were evaluated according to the above criteria. From the liquid discharged at this time, oils and fats are extracted in accordance with the reference fats and oils analysis test method, see 3.5.1-1996 and 3.5.3-1996, and the peroxide value (POV) is extracted in accordance with the reference fats and oils analysis test method, see 2.4-1996. Was measured.

[0030]

[Table 2]

Example 5 Foamed Cream (Composition) (% by Weight) Cholesterol 1.0 2. 2. Ceramide analogs (manufactured by Kao Corporation, Soft Care Ceramide SL-E) 1.0 Stearyl alcohol 0.4 4. Cetanol 0.65. Squalane 1.0 6. Olive oil (Crowa, Cropure OL) 0.57. 7. Polyoxyethylene hydrogenated castor oil (40E.O.) 1.0 Sorbitan monostearate 0.59. Sodium stearyl methyl taurine (Nikko Chemicals, Nikkor SMT) 0.5 10． Tospearl 145A (manufactured by Toshiba Silicone Co., Ltd.) 0.1 11. Silicone SH-3771 (Toray Dow Corning) 2.0 12. Silicone KF-96A (6cs, Shin-Etsu Chemical Co., Ltd.) 0.1 13. Sorbitol (70% by weight) 2.0 14. Trehalose (Hayashibara) 0.5 15． Yuzu extract (Yuzu extract, manufactured by Maruzen Pharmaceutical Co., Ltd.) 2.0 16. Succinic acid 1.0 17. Sodium hydroxide suitable amount 18.1,3-butylene glycol 8.0 19. Perfume appropriate amount 20. Purified water 78.5

Components 1 to 9 were heated to 85 ° C. and mixed and dissolved to form an oil phase. Components 13, 14, 16, 17 and 18 were sequentially added to water to adjust the pH to 4.5 to obtain an aqueous phase. After the aqueous phase was heated to 85 ° C, it was gradually added to the oil phase kept at 85 ° C.
Further, after the components 10, 11 and 12 were added and sufficiently stirred and dispersed, the mixture was cooled to 50 ° C. Components 15 and 19 were sequentially added thereto, and the mixture was cooled to 30 ° C. with sufficient stirring to obtain a stock solution.
100 parts by weight of this stock solution, 2 parts by weight of carbon dioxide and 0.5 parts by weight of LPG were filled in an aerosol can.

This foamed cream did not show any change in color or odor even after storage at 45 ° C. for 3 months, and was excellent in stability. Despite the use of no preservative, good antiseptic properties were exhibited.

Example 6 Foam Hair Styling (Composition) (parts by weight) Yuka Former SM (Mitsubishi Chemical Corporation) 10.0 2. Polyethylene glycol 600 1.0 3. Polyoxyethylene tridecyl ether 0.54. Silicone SH-3771 (Toray Dow Corning) 0.55. Eucalyptus extract (Falco Rex Eucalyptus, manufactured by Ichimaru Falcos) 2.5 6. Denatured alcohol 5.5 7. Citric acid 0.58. Disodium edetate 0.19. Suitable amount of sodium hydroxide 10. Purified water 82.9

At room temperature, components 1 to 4, 7 and 8 were sequentially added to water and uniformly dissolved. After that, component 9 was added to adjust the pH to 6.5.
Further, components 5 and 6 were added to obtain an aerosol stock solution. 90 parts by weight of this stock solution, 3 parts by weight of dimethyl ether and LPG7
The parts by weight were filled in an aerosol can.

This foamed hair styling did not show any change in color or odor even after storage at 45 ° C. for 3 months, and was excellent in stability.

Example 7 Hair Restoration Cosmetic (Composition) (Parts by Weight) 2. Dipotassium glycyrrhizinate 0.1 2. 1,3-butylene glycol 0.5 3. Assembly Extract (Maruzen Pharmaceutical Co., Ltd., Assembly Extract Liquid) 3.0 Denatured alcohol 60.0 5. Lactic acid 0.56. Dipotassium edetate 0.05 7. Suitable amount of potassium hydroxide 8. Appropriate amount of flavor 9. Purified water 35.85

At room temperature, components 1 to 6 and component 8 were sequentially added to water, and after uniform dissolution, component 7 was added to adjust the pH to 5.5 to obtain an aerosol stock solution. 98 parts by weight of this stock solution and 2 carbon dioxide
The parts by weight were filled in an aerosol can.

This hair growth cosmetic had no change in color or smell even after storage at 45 ° C. for 3 months, and was excellent in stability.

Example 8 Foam Cream (Composition) (% by Weight) Ceramide analogs (Kaosha, Soft Care Ceramide SL-E) 3.0 2. Cholesterol 0.53. Butyl alcohol 0.54. Squalane 1.05. Periwinkle oil (Crowa, Cropure EPO) 3.0 δ-tocopherol (Emix D, Eisai) 0.17. Sorbitan monostearate (Kao Corporation, Leodol Super SP-S10) 1.0 8. Polyoxyethylene (20) sorbitan monostearate (Raodol Super TW-S120, manufactured by Kao Corporation) 2.09. Glycerin fatty acid ester mixture (Nikko Chemicals Co., Ltd., Nikkor Nicoguard DL) 0.5 10． Stearyl methyl taurine sodium (Nikko Chemicals, Nikkor SMT) 0.5 11． Silicone KF-96A (6cs, Shin-Etsu Chemical Co., Ltd.) 1.0 12. Lauroyl lysine (Ajinomoto Co., Amihope LL) 0.1 13． Eucalyptus extract (Falco Rex Eucalyptus, manufactured by Ichimaru Falcos) 2.5 14.1,3-butylene glycol 5.0 15. Denatured alcohol (governed by the government) 10.0 16. Carbopol 980 (manufactured by BF Goodrich) 0.1 17. Citric acid 0.8 18. Sodium hydroxide (adjusted to pH 4.5) qs. Purified water 68.4

After pre-dispersing component 16 in component 14 at room temperature, this was gradually added to a part (30 parts by weight) of component 19 to form a gel phase. After the component 17 was added to the remainder of the component 19 and uniformly dissolved, the component 18 was added to pH 8, and the gel phase was added thereto.
Further, component 18 was added to adjust the pH to 6.0 to obtain an aqueous phase. After homogeneously dissolving components 1 to 9 at 80 ° C, disperse component 10 and
The aqueous phase heated to 80 ° C. and the component 11 were added, and emulsification was performed using a homogenizer while maintaining the temperature at 80 ° C. The mixture was cooled to 40 ° C. with stirring, and the dispersions of components 12, 13 and 15 were gradually added thereto, and further cooled to 25 ° C. to obtain a stock solution. Undiluted solution
2.5 parts by weight of nitrogen gas and 2.5 parts of carbon dioxide gas per 100 parts by weight
The parts by weight were filled in an aerosol can (double container, using a carbon dioxide permeable bag described in JP-A-10-305879).

This foamed cream did not show any change in color or smell even after storage at 45 ° C. for 3 months, and was excellent in stability.

Example 9 Hair Restoration Cosmetic (Composition) (Parts by Weight) Avocado oil (Crowa, Cropure avocado) 1.0 Silicone KF-96A (6cs, Shin-Etsu Chemical Co., Ltd.) 1.0 3. 3. Polyoxyethylene hydrogenated castor oil (40E.O.) 0.5 Dipotassium glycyrrhizinate 0.1 5.1 1,3-butylene glycol 4.0 Assembly extract (Maruzen Pharmaceutical Co., Ltd., assembly extraction liquid) 3.0 7. l-menthol 0.28. Denatured alcohol (Government specified) 35.0 9. Lactic acid 0.3 10. Disodium edetate 0.01 11. Carbopol ETD2020 (BF Goodrich) 0.25 12. Triethanolamine (adjusted to pH 6) Appropriate amount 13. Appropriate amount of fragrance 14. Purified water 54.64

After preliminarily dispersing component 11 in component 5 at room temperature, this was gradually added to a part (45 parts by weight) of component 14 to obtain a gel phase. Components 4, 9, and 10 were added to the remainder of Component 14 to dissolve uniformly, and then Component 12 was added to adjust the pH to 8. The gel phase was added to this with stirring, and the pH was adjusted to 6 with Component 12 to obtain an aqueous phase. The aqueous phase was heated to 60 ° C., and components 1 and 2 and component 3 previously dissolved at 60 ° C. were added to the aqueous phase, and emulsification was performed using a homogenizer while maintaining the temperature at 60 ° C. The mixture was cooled to 40 ° C. with stirring, to which components 6 to 8 and 13 were added, and further cooled to 25 ° C. to obtain a stock solution. An aerosol can was filled with 2.5 parts by weight of carbon dioxide gas based on 97.5 parts by weight of the stock solution.

This hair growth cosmetic had no change in color or odor even after storage at 45 ° C. for 3 months, and was excellent in stability.

[0046]

The aerosol cosmetic of the present invention stably contains generally unsaturated polyunsaturated fatty acids and plant components.
Very little deterioration of color and smell.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomohiko Sano 2-1-3 Bunka, Sumida-ku, Tokyo Inside Kao Co., Ltd. Research Laboratory (72) Inventor Kazu Tokuda 2606 Akabane, Kakaicho, Haga-gun, Tochigi Kao Co., Ltd. F-term in the laboratory (reference) 4C083 AA112 AA122 AB012 AB032 AC022 AC072 AC102 AC122 AC182 AC251 AC292 AC302 AC422 AC432 AC442 AC532 AC542 AC582 AC642 AC792 AC851 AC901 AD042 AD092 AD152 AD212 AD492 AD532 AD572 AD662 CC05 CC32 CC37 DD08

Claims (3)

[Claims] 1. A component selected from (A) a polyunsaturated fatty acid and a derivative thereof and a plant component; (B) an aliphatic carboxylic acid selected from hydroxycarboxylic acid, dicarboxylic acid and tricarboxylic acid or a salt thereof; and (C) Aerosol cosmetics containing an aqueous medium. 2. The aerosol cosmetic according to claim 1, further comprising (D) iminocarboxylic acid, organic phosphoric acid or a salt thereof. 3. The aerosol cosmetic according to claim 1, which has a pH of 4 to 7.