JP2010143848A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic excellent in both use feeling and a feeling of moisturization. <P>SOLUTION: The cosmetic contains the following components (a) and (b): (a) one or more selected from the group consisting of lecithin containing 70 mass% or more of phosphatidylcholine and a hydrogenated product thereof, and (b) a propylene glycol mono-fatty acid ester represented by general formula (1) or the like, wherein a glycerol mono-fatty acid ester is contained in an amount of 0-20 mass% or less of the loading of (b) propylene glycol mono-fatty acid ester. Preferably, the cosmetic further contains cholesterol and/or phytosterol as a component (c). In the formula, R<SP>1</SP>and R<SP>2</SP>are each a 9-23C linear or branched, saturated or unsaturated hydrocarbon group. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a novel cosmetic having an excellent feeling of use and a moisturizing feeling on the skin.

Many cosmetics aimed at moisturizing and emollient effects have been researched and developed. Conventionally, a large amount of oils (such as petrolatum) have been blended in order to impart an excellent moisturizing and emollient effect in cosmetics (Patent Document 1).
However, when the amount of the oil is increased, moisturizing and emollient effects can be obtained, but there is a problem that stickiness occurs after application. On the contrary, if the blending amount of the oil agent is reduced, the stickiness after coating is reduced, but there is a problem that a sufficient moisturizing effect cannot be obtained.

  Moreover, there exists a thing using lecithin in the moisturizer composition mix | blended with cosmetics (patent documents 2, 3). Conventionally, lecithin is known as a natural-derived emulsifier and is used for many purposes in many fields. In the cosmetics field, it is used as a highly safe emulsifier or moisturizer in creams, emulsions, lotions, foundations and the like. However, there are various problems such as blending amount due to the stickiness in touch when lecithin is applied on the skin.

JP 2000-290163 A JP-A-8-259433 JP 2008-231087 A

  Therefore, the subject of this invention is providing the cosmetics which were excellent in the usability | use_condition and were excellent also in the moisturizing feeling.

［一般式（１）、（２）中、Ｒ^１及びＲ^２はいずれも炭素数９〜２３の直鎖状もしくは分岐鎖状である飽和又は不飽和の炭化水素基。］
を含有し、グリセリンモノ脂肪酸エステルが（ｂ）プロピレングリコールモノ脂肪酸エステルの配合量の０〜２０質量％以下であることを特徴とする化粧料。
また、第二の本発明は、更に、成分（ｃ）としてコレステロール及び／又はフィトステロールを含有する化粧料にある。 As a result of studies to solve the above problems, the present inventor has found that the following cosmetics are excellent in use feeling and excellent in moisturizing feeling, and have completed the present invention.
That is, the first present invention includes the following components (a) and (b):
(A) One or more selected from the group consisting of lecithin containing 70% by mass or more of phosphatidylcholine and hydrogenated products thereof (b) represented by the following general formulas (1) and / or (2) Propylene glycol mono fatty acid ester

[In General Formulas (1) and (2), R ¹ and R ² are each a saturated or unsaturated hydrocarbon group having 9 to 23 carbon atoms, which is linear or branched. ]
And a glycerin monofatty acid ester in an amount of 0 to 20% by mass or less of the blended amount of (b) propylene glycol monofatty acid ester.
Moreover, 2nd this invention exists in the cosmetics which contain cholesterol and / or phytosterol as a component (c) further.

  INDUSTRIAL APPLICABILITY The present invention can provide a cosmetic that has an excellent feeling of use and has a sufficient moisturizing feeling, such as having no stickiness when applied to the skin and excellent moist feeling.

  Hereinafter, embodiments of the present invention will be described in detail.

  The component (a) used in the present invention is one or more selected from the group consisting of lecithin containing 70% by mass (hereinafter simply referred to as “%”) of phosphatidylcholine and hydrogenated products thereof. In general, any material can be used as long as it is used as a cosmetic raw material, and any of the production methods can be used. Specific examples include soybean lecithin, egg yolk lecithin, and hydrogenated products thereof, and mixtures of phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, sphingophospholipid, phosphatidic acid, lysophosphatidylcholine, and the like. .

  Moreover, the content rate of the phosphatidylcholine contained in the component (a) used by this invention is general using thin layer chromatography (TLC), a high performance liquid chromatography (HPLC), Iatroscan (made by Yatron), etc. It can be analyzed using methods. For example, the method described in paragraph 0019 of JP-A-2001-186898, that is, an organic solvent containing phospholipid is spotted on TLC and developed with chloroform: methanol: acetic acid = 65: 25: 10, and 50 wt% sulfuric acid. Examples include a method of analyzing phospholipid composition with a densitometer after spraying and heating ethanol. Any method other than the above method may be used as long as it can measure and calculate the content and content of phosphatidylcholine contained in (a).

  Among the components (a) mentioned above, it is preferable to use hydrogenated soybean lecithin containing 70% or more of phosphatidylcholine. When using a commercially available product, Coatsome NC-2 (manufactured by NOF Corporation) or Resinol S-10E (manufactured by Nikko Chemicals) is preferred.

(A) component in this invention can be mix | blended with cosmetics individually by 1 type or in combination of 2 or more types. Moreover, although the preferable compounding quantity of (a) component in this invention is not specifically limited, It is 0.01 to 10% on the basis of the total amount of cosmetics, More preferably, it is 0.05 to 5%. Within this range, a good moisturizing feeling and a good feeling without stickiness can be obtained.

［一般式（１）、（２）中、Ｒ^１及びＲ^２はいずれも炭素数９〜２３の直鎖状もしくは分岐鎖状である飽和又は不飽和の炭化水素基。］ The component (b) used in the present invention is a propylene glycol monofatty acid ester represented by the following general formula (1) and / or (2).

[In General Formulas (1) and (2), R ¹ and R ² are each a saturated or unsaturated hydrocarbon group having 9 to 23 carbon atoms, which is linear or branched. ]

The propylene glycol monofatty acid esters represented by the above general formulas (1) and (2) are known substances, and can be easily produced using known esterification methods for fatty acids and propylene glycol, and are commercially available products. Can be purchased and used.
As said fatty acid, R < ¹ > and R < ² > in said general formula (1) and (2) is a C9-C23 linear or branched saturated or unsaturated hydrocarbon group. Fatty acids are mentioned. Among them, R ¹ and R ² are preferably a saturated or unsaturated hydrocarbon group having a linear or branched chain having 13 to 19 carbon atoms, such as myristic acid, palmitic acid, stearic acid, arachidic acid, isostearic acid. Examples include acid, palmitoyl acid, oleic acid, linoleic acid, linolenic acid, and arachidonic acid.
Moreover, in a commercial item, PRISORINE 2034 (made by Unikema), Sunsoft 25OD (made by Taiyo Kagaku), etc. are preferable.

  (B) component in this invention can be mix | blended with cosmetics individually by 1 type or in combination of 2 or more types. Moreover, although the preferable compounding quantity of (b) component in this invention is not specifically limited, 0.1 to 30% is preferable on the basis of the total amount of cosmetics, More preferably, it is 0.5 to 10%. Within this range, a good moisturizing feeling and a good feeling without stickiness can be obtained.

  In the present invention, glycerin monofatty acid ester is an optional component and can be blended in cosmetics at 0 to 20% or less of the blending amount of (b) propylene glycol monofatty acid ester.

  In the present invention, one or two kinds selected from cholesterol and / or phytosterol can be further blended as the component (c). Moreover, the cholesterol and phytosterol of (c) component should just be normally used as cosmetics.

  Although the preferable compounding quantity of (c) component in this invention is not specifically limited, It is 0.01-10% on the basis of the total amount of cosmetics, More preferably, it is 0.05-5%. Within this range, a good moisturizing feeling and a good feeling without stickiness can be obtained.

The cosmetic of the present invention is not particularly limited as long as it is generally applied to the skin, and can be used as a base cosmetic or foundation in addition to a normal skin cosmetic, and used as a bath agent. Also good.
The dosage form can be made into granules or other powders, tablets, etc. by using generally used aqueous solutions, W / O type or O / W type emulsions, suitable excipients, etc. , Cream, milky lotion, lotion, pack, gel, stick, sheet, pap and the like.

  In addition to the above, the cosmetics of the present invention include tar dyes, colored pigments such as iron oxide, preservatives such as parabens, anionic surfactants such as fatty acid soap, sodium cetyl sulfate, and polyoxyethylene alkyl. Ether, polyoxyethylene fatty acid ester, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyhydric alcohol fatty acid ester, polyglycerin fatty acid ester and other nonionic surfactants, tetraalkylammonium salt and other positive ions Ionic surfactants, betaine type, sulfobetaine type, sulfoamino acid type, amphoteric surfactants such as sodium N-stearoyl-L-glutamate, gelatin, casein, starch, gum arabic, caraya gum, guar gum, locust bean gum , Draga cant gum, cucumber Natural polymers such as seeds, pectin, carrageenan, sodium alginate, semi-synthetic polymers such as methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium carboxymethyl cellulose, ethyl cellulose, polyvinyl alcohol, polyvinyl methyl ether and copolymers, polyvinyl pyrrolidone, polyacryl Synthetic polymers such as acid soda, carboxyvinyl polymer, and polyethylene oxide polymer, thickeners such as xanthan gum, pigments such as titanium oxide, antioxidants such as dibutylhydroxytoluene, and the like within the range not impairing the object of the present invention. It can mix | blend suitably.

  Hereinafter, the present invention will be described in detail based on examples and comparative examples. In addition, this invention is not limited to these.

Examples 1-10 and Comparative Examples 1-6
In accordance with the formulation shown in Table 1, a serum was prepared by the following (1) preparation method.
Using these, the following (2) usability test was performed. The results are shown in Table 1.

(1) Preparation method Components (1) to (9) were heated to 80 ° C. and dissolved uniformly.
2. Components (10) to (15) were heated to 80 degrees and dissolved uniformly.
3. 1 was added to the above 2 and stirred, and after cooling, the intended cosmetic liquids of Examples 1 to 10 and Comparative Examples 1 to 6 were obtained.

(2) Usability test The serums shown in Table 1 were used by 20 professional panelists, and (A) no stickiness and (B) moist feeling were evaluated according to the following evaluation criteria. It was judged by calculating the average score.
(Evaluation criteria)
5: Very good 4: Good 3: Normal 2: Bad 1: Very bad

（注１）コートソームＮＣ−２１（日油社製）
（注２）ＮＩＫＫＯＬレシノールＳ−１０Ｅ（日光ケミカルズ社製）
（注３）コートソームＮＣ−２０（日油社製）
（注４）ＮＩＫＫＯＬレシノールＳ−１０Ｍ（日光ケミカルズ社製）
（注５）ＰＲＩＳＯＲＩＮＥ２０３４（ユニケマ社製）
（注６）サンソフト２５ＯＤ（太陽化学社製）

(Note 1) Coatsome NC-21 (manufactured by NOF Corporation)
(Note 2) NIKKOL Resinol S-10E (Nikko Chemicals)
(Note 3) Cotesome NC-20 (manufactured by NOF Corporation)
(Note 4) NIKKOL Resinol S-10M (Nikko Chemicals)
(Note 5) PRISORINE 2034 (manufactured by Unikema)
(Note 6) Sunsoft 25OD (manufactured by Taiyo Kagaku)

  From the results in Table 1, it was found that the cosmetic liquid of the present invention was not sticky and superior in moist feeling compared to the comparative example.

  Next, according to the prescriptions of Examples 11 to 13 below, various cosmetics were prepared by a conventional method, and the above various tests were performed. As a result, a good feeling of use was obtained.

Example 11 (skin lotion)
-------------------------------------------------- ----------------
Raw material component amount (%)
-------------------------------------------------- ----------------
Ethanol 10.0
Polyoxyethylene sorbitan monolaurate 1.0
(20 EO)
Polyoxyethylene hydrogenated castor oil (60 EO) 2.0
1,3-butylene glycol 4.0
Methylparaben 0.05
Phenoxyethanol 0.3
Hydrogenated soybean lecithin (Note 1) 0.1
Propylene glycol isostearate (Note 5) 1.0
Cholesterol 0.5
Purified water balance
-------------------------------------------------- ----------------

Example 12 (milky lotion)
-------------------------------------------------- ----------------
Raw material component amount (%)
-------------------------------------------------- ----------------
Ethanol 10.0
Polyoxyethylene oleyl ether (2E.O.) 0.2
Polyoxyethylene cetyl ether (2E.O.) 0.1
Polyoxyethylene hydrogenated castor oil (60 EO) 0.3
Methylphenyl polysiloxane (Note 7) 1.0
Dimethylpolysiloxane (Note 8) 1.0
Glyceryl tri-2-ethylhexanoate 1.0
Propylene glycol oleate (Note 6) 5.0
2-Ethylhexyl paramethoxycinnamate 1.0
Hydrogenated soybean lecithin (Note 2) 3.0
Phytosterol 1.0
Lauroyl-L-glutamate sodium 1.0
Dipropylene glycol 1.0
Concentrated glycerin 2.0
Carboxyvinyl polymer (Note 9) 0.3
Potassium hydroxide 0.15
Edetate disodium 0.01
Purified water balance
-------------------------------------------------- ----------------
(Note 7) Silicon FZ-209 (manufactured by Nihon Unicar)
(Note 8) Silicon KF-96 (300 cs; manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 9) CARBOPOL941 (manufactured by GF Goodrich)

Example 13 (O / W type cream)
-------------------------------------------------- ----------------
Raw material component amount (%)
-------------------------------------------------- ----------------
Cetanol 5.0
Lipophilic glyceryl monostearate 0.8
Polyoxyethylene cetyl ether (2E.O.) 0.1
Egg yolk lecithin [PC content 98% or more] (Note 10) 1.0
Cholesterol 0.1
Propylene glycol myristate 5.0
Butylparaben 0.1
Methylphenyl polysiloxane (Note 7) 2.0
Squalane 2.0
Sucrose fatty acid ester (Note 11) 0.5
Methylparaben 0.1
Sodium L-hyaluronate 0.1
Acrylic acid / alkyl methacrylate copolymer (Note 12) 0.1
Sodium hydroxide 0.05
Purified water balance
-------------------------------------------------- ----------------
(Note 10) Egg yolk lecithin PC-98N (manufactured by Kewpie)
(Note 11) Sugar wax A-10E (Daiichi Kogyo Seiyaku Co., Ltd.)
(Note 12) PEMULEN TR-1 (manufactured by GF Goodrich)

  INDUSTRIAL APPLICABILITY The present invention can provide a cosmetic that has an excellent feeling of use and has a sufficient moisturizing feeling, such as having no stickiness when applied to the skin and excellent moist feeling.

Claims (2)

The following components (a) and (b):
(A) One or more selected from the group consisting of lecithin containing 70% by mass or more of phosphatidylcholine and hydrogenated products thereof (b) represented by the following general formulas (1) and / or (2) Propylene glycol mono fatty acid ester

[In General Formulas (1) and (2), R ¹ and R ² are each a saturated or unsaturated hydrocarbon group having 9 to 23 carbon atoms, which is linear or branched. ]
And a glycerin monofatty acid ester in an amount of 0 to 20% by mass or less of the blended amount of (b) propylene glycol monofatty acid ester. Furthermore, cholesterol and / or a phytosterol are contained as a component (c), The cosmetics of Claim 1 characterized by the above-mentioned.