JP7041500B2 - Skin cosmetics - Google Patents

Description

The present invention relates to a skin cosmetic having a deodorant, a refreshing sensation, and the like.

Cosmetics that can impart a refreshing sensation and deodorant effect when applied to the skin are widely used, and such cosmetics contain water, ethanol, menthol, powder and the like. For example, an antiperspirant deodorant composition containing hydroxyalkylated cyclodextrin, an antiperspirant active ingredient and water (Patent Document 1), an organic powder, a water-soluble inorganic salt, a surfactant, an ethanol and a cosmetic containing water (Patent Document 1). Patent Document 2), cosmetics containing polyurethane particles, anionic polymer, ethanol and water (Patent Document 3), cosmetics containing particles having a specific strength and particle size, ester oil, ethanol and water (Patent Documents). 4) etc. have been reported.

Japanese Patent Application Laid-Open No. 2003-09596 Japanese Unexamined Patent Publication No. 2004-262878 International Publication No. 2015/146590 Pamphlet Japanese Unexamined Patent Publication No. 2016-94362

However, cosmetics containing high-concentration ethanol and a refreshing agent such as menthol in order to obtain an excellent refreshing sensation have good quick-drying properties, but the high-concentration ethanol makes the skin dry and refreshing. There was a problem that the feeling did not last.
Therefore, an object of the present invention is to provide a skin cosmetic having an excellent quick-drying property and a refreshing sensation, which has a good skin feel after application and a long-lasting refreshing sensation.

Therefore, the present inventor has made various studies to improve the durability of the feel and refreshing sensation after applying a cosmetic containing high-concentration ethanol and menthol to the skin, and as a result, in addition to high-concentration ethanol and menthol. The present invention has been completed by finding that when a small amount of a specific liquid oil is blended, the skin is not sticky after application, has a non-dry feel, and improves the sustainability of a refreshing sensation.

That is, the present invention has the following components (A), (B) and (C),
(A) Ethanol 30% by mass or more and 99.9% by mass or less (B) At least one liquid oil selected from hydrocarbon oil, ester oil and ether oil 0.001% by mass or more and less than 0.1% by mass, and ( C) To provide a skin cosmetic containing 0.001% by mass or more and 7% by mass or less of menthol.

When the skin cosmetic of the present invention is used, it has an excellent quick-drying property and a refreshing sensation, and at the same time, it has a good feeling that the skin after application is not sticky or dry, and the refreshing sensation is maintained.

The skin cosmetic of the present invention comprises (A) 30% by mass or more of ethanol and 99.9% by mass or less, and (B) 0.001% by mass or more of at least one liquid oil selected from hydrocarbon oils, ester oils and ether oils. It contains less than 0.1% by mass, and (C) Mentor 0.001% by mass or more and 7% by mass or less.

The component (A) in the skin cosmetic of the present invention is ethanol. Ethanol is used as a medium for skin cosmetics, for the purpose of imparting a refreshing sensation, improving quick-drying property and sterilizing.

The content of (A) ethanol in the skin cosmetic of the present invention is 30% by mass or more and 99.9% by mass or less from the viewpoint of imparting a refreshing feeling and improving quick-drying property. From the viewpoint of imparting a refreshing feeling and improving quick-drying property, it is contained in an amount of 30% by mass or more, preferably 40% by mass or more, more preferably 45% by mass or more, further preferably 50% by mass or more, still more preferably 60% by mass or more. Further, from the viewpoint of the feeling that the skin is not dry, 90% by mass or less is preferable, 85% by mass or less is more preferable, and 80% by mass or less is further preferable. Specifically, 35% by mass or more and 90% by mass or less is preferable, 40% by mass or more and 85% by mass or less is more preferable, 45% by mass or more and 85% by mass or less is further preferable, and 50% by mass or more and 85% by mass or less is further preferable. It is preferable, and more preferably 60% by mass or more and 80% by mass or less.

The component (B) in the skin cosmetic of the present invention is at least one liquid oil selected from hydrocarbon oils, ester oils and ether oils. In the skin cosmetics of the present invention, these liquid oils contribute to the improvement of the feel of the skin and the sustainability of the refreshing sensation after the application of the cosmetics by blending a small amount.
The liquid oil is an oil in a liquid state at 25 ° C. Of these liquid oils, ester oils and ether oils are more preferable, and ester oils are even more preferable, from the viewpoint of improving the feel of the skin after application and improving the durability of the refreshing sensation.

The ester oils include isopropyl myristate, isopropyl palmitate, butyl stearate, cetyl 2-ethylhexanate, lauryl methacrylate, methyl laurate, methyl oleate, ethyl oleate, methyl coconut oil fatty acid, isononyl isononanoate, and isononan. Fatty acid esters such as isotridecyl acid, hexyl laurate, 2-octyldodecyl myristate, 2-ethylhexyl palmitate; difatty acid glycol esters such as neopentyl glycol dicaprate and neopentyl glycol diethylhexanate; diisopropyl adipate, diisobutyl adipate , Dicarboxylic acid diesters such as diisopropyl sebacate, and the like, from the viewpoint of maintaining a refreshing sensation, difatty acid glycol esters are preferable, and dicapric acid neopentyl glycol is more preferable. Examples of the hydrocarbon oil include dodecane, tetradecane, hexadecane, isododecane, isohexadecane, isoeikosan, squalane, liquid paraffin, isododecane, and isohexadecane. Examples of the ether oil include cetyl dimethyl butyl ether, dicaprylyl ether, dicaprylyl ether, dicaprylyl ether and the like, and for example, cetyl dimethyl butyl ether is preferable from the viewpoint of maintaining a refreshing sensation. One kind or two or more kinds of these liquid oils can be used.

The content of (B) the liquid oil in the skin cosmetic of the present invention is 0.001% by mass or more and less than 0.1% by mass from the viewpoint of improving the durability of the skin feel and refreshing feeling after application. .. If it is less than 0.001% by mass, the effect of improving the sustainability of the skin feel and refreshing feeling after application cannot be obtained, and if it is 0.1% by mass or more, the sticky feeling of the skin is increased and the refreshing feeling is weakened. From the viewpoint of improving the durability of the skin feel and refreshing feeling after application, (B) the content of the liquid oil is preferably 0.005% by mass or more, more preferably 0.01% by mass or more, and 0. 09% by mass or less is preferable, 0.08% by mass or less is more preferable, and 0.07% by mass or less is further preferable. Specifically, 0.005% by mass or more and 0.09% by mass or less is preferable, 0.01% by mass or more and 0.08% by mass or less is more preferable, and 0.01% by mass or more and 0.07% by mass or less is further preferable. preferable.

The content mass ratio (A / B) of the component (A) to the component (B) in the skin cosmetic of the present invention is such that a refreshing sensation is imparted, quick-drying is improved, and the skin feels sticky or dry after application and a refreshing sensation. From the viewpoint of improving sustainability, 300 or more is preferable, 800 or more is more preferable, 1000 or more is further preferable, 90,000 or less is preferable, 70,000 or less is more preferable, 30,000 or less is further preferable, and 10,000 or less is further preferable. Specifically, 300 or more and 90000 or less are preferable, 800 or more and 70,000 or less are more preferable, 1000 or more and 30,000 or less are further preferable, and 1000 or more and 10000 or less are further preferable.

The ingredient (C) in the skin cosmetics of the present invention is menthol. Menthol functions as a refreshing agent (cooling sensitizer) in the skin cosmetics of the present invention.
There are several diastereomers and enantiomers in menthol, but l-menthol is preferred. Further, menthol alone may be used, but essential oils containing menthol such as peppermint and spearmint may be used.

The content of (C) menthol in the skin cosmetics of the present invention is 0.001% by mass or more and 7% by mass or less from the viewpoint of a refreshing feeling, an improvement in the sustainability of the refreshing feeling, and a feeling that the skin is not dry. be. If it is less than 0.01% by mass, a sufficient refreshing sensation and a long-lasting refreshing sensation cannot be obtained, and if it exceeds 7% by mass, a dry feeling of the skin occurs. From the viewpoint of improving the refreshing sensation and the sustainability of the refreshing sensation, 0.005% by mass or more is preferable, 0.01% by mass or more is more preferable, and 0.05% by mass or more is further preferable. Further, from the viewpoint of skin irritation, 6.5% by mass or less is preferable, 5% by mass or less is more preferable, 3.5% by mass or less is more preferable, 2% by mass or less is more preferable, and 0.9% by mass or less. Is even more preferable, 0.8% by mass or less is further preferable, and 0.7% by mass or less is even more preferable. Specifically, 0.005% by mass or more and 5.5% by mass or less is preferable, 0.005% by mass or more and 2% by mass or less is more preferable, and 0.005% by mass or more and 0.9% by mass or less is further preferable. It is more preferably 0.01% by mass or more and 0.8% by mass or less, and even more preferably 0.05% by mass or more and 0.7% by mass or less.

The content mass ratio (B / C) of the component (B) to the component (C) in the skin cosmetic of the present invention is determined from the viewpoint of the effect of improving the sustainability of the feeling of stickiness and dryness of the skin after application and the refreshing feeling. 0.02 or more is preferable, 0.03 or more is more preferable, 0.04 or more is further preferable, 0.05 or more is further preferable, 50 or less is preferable, 30 or less is more preferable, and 20 or less is further preferable. It is more preferably 10 or less, further preferably 5 or less, and even more preferably 0.3 or less. Specifically, 0.02 or more and 50 or less are preferable, 0.03 or more and 30 or less are more preferable, 0.04 or more and 20 or less are further preferable, 0.05 or more and 10 or less are further preferable, and 0.05 or more and 5 or less. Is even more preferable, and 0.02 or more and 0.3 or less is even more preferable.

The skin cosmetic of the present invention is preferably used as a cosmetic, a deodorant, a moisturizer, and an insect repellent that imparts a refreshing sensation to the skin. The dosage form of the skin cosmetic of the present invention is preferably in the form of mist, spray or lotion.

In addition to the above-mentioned components, the skin cosmetic of the present invention includes isopropylmethylphenol, 1,3-butylene glycol, glycerin, a nonionic surfactant, a carboxylic acid or a salt thereof, a water-soluble polymer, a fragrance, and a component ( It can contain oils, water, etc. other than B).

The skin cosmetic of the present invention has a component (D) HLB value of 4 to 7 and a temperature of 25 ° C. from the viewpoint of further improving the persistence of the components (B) and (C) on the skin and the sustainability of the refreshing sensation. It preferably contains a liquid, nonionic surfactant having a glyceryl group.
The liquid at 25 ° C. means a viscosity at 25 ° C. of 100,000 mPa · s or less.
The nonionic surfactant having an HLB value of 4 to 7 has a branched alkyl group or alkenyl group having 8 to 22 carbon atoms, and is ether-bonded or ester-bonded to a glyceryl group, or via an alkylene oxide group. Those that are bonded are preferable.

Examples of the nonionic surfactant having a glyceryl group having an HLB value of component (D) of 4 to 7 and liquid at 25 ° C. include alkyl glyceryl ether, glycerin fatty acid ester, polyglycerin fatty acid ester, and polyoxyethylene glyceryl. One or more selected from ether fatty acid ester, polyoxyethylene cured castor oil, polyoxyethylene cured castor oil fatty acid ester and the like are preferable. Among them, one or more selected from alkyl glyceryl ether and glycerin fatty acid ester are preferable, and further, alkyl One or more selected from glyceryl ether is preferable.

Examples of such a component (D) include isostearyl glyceryl ether (HLB5.4), 2-ethylhexyl glyceryl ether (HLB7), glyceryl monoisostearate (HLB6), and monoisostearic acid (polymerization degree 2) polyglyceryl (HLB5). .5), Polyoxyethylene monoisostearate (5) Hardened castor oil (HLB4), Polyoxyethylene monoisostearate (10) Hardened castor oil (HLB5), Polyoxyethylene monoisostearate (15) Hardened castor oil (HLB7) ), Polyoxyethylene triisostearate (10) Hardened castor oil (HLB4), Polyoxyethylene triisostearate (15) Hardened castor oil (HLB5), Polyoxyethylene triisostearate (20) Hardened castor oil (HLB6), Examples thereof include polyoxyethylene triisostearate (30) hardened castor oil (HLB7).
Of these, isostearyl glyceryl ether, 2-ethylhexyl glyceryl ether, and glyceryl monoisostearate are preferable from the viewpoint of improving the persistence of the components (B) and (C) on the skin and the sustainability of the refreshing sensation. From this point of view, isostearyl glyceryl ether is preferable.

The content of the component (D) is preferably 0.01 to 1% by mass, more preferably 0.01 to 0. It is 8% by mass, more preferably 0.01 to 0.5% by mass.
In the present invention, the HLB value is an index showing the hydrophilic-lipophilic balance (Hydrophile Lipophilic Balance), and in the present invention, the value calculated by the following formula by Oda, Teramura et al. Is used. The HLB value is the HLB of each nonionic surfactant before compounding.

Isopropylmethylphenol acts as a bactericidal component and a deodorant component when the skin cosmetic of the present invention is used as a deodorant agent. The content of isopropylmethylphenol in the skin cosmetic of the present invention is preferably 0.01% by mass or more and 0.2% by mass or less from the viewpoint of obtaining a sufficient bactericidal effect, feeling of use, and persistence on the skin. Is.

1,3-butylene glycol has an action of leaving isopropylmethylphenol on the skin, an action of improving long-term storage stability of isopropylmethylphenol, and the like.
The content of 1,3-butylene glycol in the skin cosmetic of the present invention is preferably 0.1% by mass or more and 10% by mass from the viewpoint of obtaining a sufficient bactericidal action of isopropylmethylphenol, a refreshing feeling, and a feeling of use. It is as follows.

In addition to the above-mentioned components, the skin cosmetic of the present invention includes polyoxyethylene polyoxypropylene decyltetradecyl ether, polyether-modified silicone, bactericidal agents other than isopropylmethylphenol, refreshing agents other than menthol, antiperspirants, and powders. Body, other surfactants, water-soluble polymers, antioxidants, pigments, emulsion stabilizers, pH adjusters, astringents, preservatives, UV absorbers, chelating agents, moisturizers, thickeners, anti-inflammatory agents , Amino acids, vitamin preparations, various plant extracts, water and the like can be contained. Examples of the refreshing agent other than the menthol include N-ethyl-p-menthan-3-carboxamide (WS-3) and N-[[5-methyl-2- (1-methylethyl) cyclohexyl] carbonyl] glycine ethyl. Ester (3- (p-menthan-3-carboxamide) ethyl acetate; WS-5), N-ethyl-2,2-diisopropylbutaneamide, N- (1,1-dimethyl-2-hydroxyethyl) -2, 2-diethylbutaneamide, isopregol, 3- (1-mentoxy) propane-1,2-diol, 3- (L-mentoxy) -2-methylpropane-1,2-diol, p-menthan-2,3- Dires, mentan diols such as p-menthan-3,8-diol, 6-isopropyl-9-methyl-1,4-dioxaspiro [4,5] decane-2-methanol, menthyl succinate and its alkaline earth metal salts. , Trimethylcyclohexanol, N-ethyl-2-isopropyl-5-methylcyclohexanecarboxamide, cyclohexaneamide, Japanese peppermint oil, peppermint oil, Menton, Isomenton, Mentonglycerol ketal, Menthyl lactate, 3- (L-Mentoxy) ethane- 1-ol, 3- (L-mentoxy) propan-1-ol, 3- (L-mentoxy) butane-1-ol, L-mentylacetic acid N-ethylamide, 4-hydroxypentanoic L-mentyl, 3-hydroxy L-mentyl butyrate, N, 2,3-trimethyl-2- (1-methylethyl) -butaneamide, n-ethyl-trans-2-cis-6-nonazienamide, N, N-dimethylmentylsuccinamide, pyrrolidone carboxylic Menthyl acid, xylitol, erythritol, menthan, menthonketal, substituted p-menthan, acyclic carboxamide, monomentyl glutarate, substituted cyclohexaneamide, substituted cyclohexanecarboxamide, substituted mentanol, p-menthan Hydroxymethyl derivative, 2-mercapto-cyclodecanone, 2-isopropyl-5-methylcyclohexanol, menthyl acetate, menthyl salicylate, N, 2,3-trimethyl-2-isopropylbutaneamide (WS-23), isylin, cerebrum , Borneol, eucalyptus oil, bornyl acetate, lavender oil, wasabi extract, wasabi extract and the like.

Since the skin cosmetics of the present invention are used in various forms as described above, the components (A) to (C) and other components are added, mixed, and heated as necessary to obtain various types. It can be manufactured by filling it in a container according to the form.

Next, the present invention will be described in more detail with reference to examples. In the examples,% means mass%.

Examples 1 to 25 and Comparative Examples 1 to 8
The mists shown in Tables 1, 2 and 3 were produced, and the quick-drying property after application, the feeling of use (no stickiness and no dryness), the refreshing feeling and the durability of the refreshing feeling were evaluated. The results are shown in Tables 1 to 3. The mist of Examples 24 and 25 produced a sensation of skin irritation, but was preferred for those who preferred a strong refreshing sensation.

(Production method)
Ingredients (A), (B), (C) and (D) were added and stirred to make them uniform to obtain a skin cosmetic composition.
A spray product was obtained by filling 100 mL of each of these compositions into a commercially available trigger-type spray container (non-aerosol type, discharge port diameter 0.2 mm, capacity 200 mL).

(Evaluation methods)
(Evaluation of quick-drying)
The spray product was sprayed once (about 0.1 g) on the lower part (neck) of the ear, and the dry feeling was evaluated immediately after application according to the following criteria. The results are shown by the average value of 10 people.
<Evaluation criteria>
5: Feel the dry feeling very quickly.
4: Feel the dry feeling quickly.
3: I can't say either.
2: I don't feel much dry.
1: I don't feel dry.

(Evaluation of non-stickiness in usability)
The spray product was sprayed once on the lower part (neck) of the ear (about 0.1 g), and the non-stickiness after drying was evaluated according to the following criteria. The results are shown by the average value of 10 people.
<Evaluation criteria>
5: Not sticky at all.
4: Not sticky.
3: I can't say either.
2: Somewhat sticky.
1: Sticky.

(Evaluation of the lack of dryness in usability)
The spray product was sprayed once on the lower part (neck) of the ear (about 0.1 g), and the dryness was evaluated according to the following criteria. The results are shown by the average value of 10 people.
<Evaluation criteria>
5: It's not bulky at all.
4: Not bulky.
3: I can't say either.
2: Slightly dry.
1: It's dry.

(Evaluation of refreshing feeling)
The spray product was sprayed once on the lower part (neck) of the ear (about 0.1 g), and the refreshing sensation immediately after application was evaluated according to the following criteria. The results are shown by the average value of 10 people.
<Evaluation criteria>
Refreshing feeling strength 5: Feeling a strong refreshing feeling.
Refreshing feeling strength 4: Feeling a little strong refreshing feeling.
Refreshing feeling strength 3: Feeling refreshing feeling.
Refreshing feeling strength 2: Feeling a faint refreshing feeling.
Refreshing feeling strength 1: No refreshing feeling.

(Evaluation of sustainability of refreshing feeling)
The spray product was sprayed once on the lower part (neck) of the ear (about 0.1 g), and the refreshing sensation 120 minutes after application was evaluated according to the following criteria. The results are shown by the average value of 10 people.
<Evaluation criteria>
Refreshing feeling strength 5: Feeling a strong refreshing feeling.
Refreshing feeling strength 4: Feeling a little strong refreshing feeling.
Refreshing feeling strength 3: Feeling refreshing feeling.
Refreshing feeling strength 2: Feeling a faint refreshing feeling.
Refreshing feeling strength 1: No refreshing feeling.

* 1: Este Mall N-01 (manufactured by Nisshin Oillio Group Co., Ltd.)
* 2: Cetyl dimethyl butyl ether (manufactured by Kao Corporation)
* 3: 95% ethanol (manufactured by Nippon Synthetic Alcohol Co., Ltd.)
* 4: l-Menthol (manufactured by Takasago International Corporation)
* 5: Isopropylmethylphenol (manufactured by Osaka Kasei Co., Ltd.)
* 6: Concentrated glycerin (manufactured by Kao Corporation)
* 7: 1,3-butylene glycol (manufactured by KH Neochem Co., Ltd.)
* 8: Isostearyl glyceryl ether (manufactured by Kao Corporation)
* 9: Isopropyl palmitate (manufactured by Kao Corporation)
* 10: Isopropyl myristate (manufactured by Kao Corporation)
* 11: Diisopropyl sebacate (manufactured by NOF CORPORATION)
* 12: Squalene (manufactured by Kishimoto Cod Liver Oil Industry Co., Ltd.)

Example 26
(Lotion / mist prescription)
95% ethanol * 3 component (A) 70.0 (%)
Neopentyl glycol dicaprate * 1 component (B) 0.05 (%)
Menthol * 4 Ingredient (C) 0.1 (%)
Isopropylmethylphenol * 5 0.1 (%)
Concentrated glycerin * 6 0.3 (%)
1-3 Butylene Glycol * 7 2.0 (%)
Isostearyl glyceryl ether * 8 component (D) 0.02 (%)
Polyoxyethylene / methylpolysiloxane copolymer 0.01 (%)
Phellodendron extract 0.1 (%)
Citric acid 0.2 (%)
Adipic acid 0.1 (%)
Polyoxyethylene lauryl ether (6EO) 0.1 (%)
Polyoxyethylene polyoxypropylene decyltetradecyl ether 0.3 (%)
Polyoxyethylene sorbitan monooleate (20EO) 0.1 (%)
Polypropylene glycol 0.01 (%)
Lactic acid l-mentyl 0.1 (%)
Fragrance 0.1 (%)
Purified water balance total 100.00

Claims (10)

A skin cosmetic containing the following components (A), (B) and (C), and having a mass ratio (A / B) of the component (A) to the component (B) of 1000 or more .
(A) Ethanol 30% by mass or more and 99.9% by mass or less (B) At least one liquid oil selected from hydrocarbon oils, fatty acid esters, difatty acid glycol esters and ether oils 0.001% by mass or more and 0.09% by mass %Less than
(C) Menthol 0.001% by mass or more and 7% by mass or less The skin cosmetic according to claim 1, wherein the component (B) is one or more selected from fatty acid esters, difatty acid glycol esters and ether oils. The skin cosmetic according to claim 1 or 2, wherein the component (B) is one or more selected from fatty acid esters and difatty acid glycol esters . The skin cosmetic according to claim 1, wherein the component (B) is one or more selected from neopentyl glycol dicaprate, isopropyl palmitate, isopropyl myristate, squalane and cetyldimethylbutyl ether. The skin cosmetic according to any one of claims 1 to 4, wherein the content mass ratio (B / C) of the component (B) to the component (C) is 20 or less. The skin cosmetic according to any one of claims 1 to 5 , wherein the content mass ratio (B / C) of the component (B) to the component (C) is 0.3 or less. The skin cosmetic according to any one of claims 1 to 6 , further comprising a nonionic surfactant having a glyceryl group, which has an HLB value of component (D) of 4 to 7 and is liquid at 25 ° C. The skin cosmetic according to any one of claims 1 to 7, wherein the content of the component (A) is 50% by mass or more and 99.9% by mass or less. The skin cosmetic according to any one of claims 1 to 8 , which is a deodorant agent. The skin cosmetic according to any one of claims 1 to 9 , wherein the dosage form is mist, spray or lotion.