JP2017081876A - Skin cosmetic composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cosmetic which is excellent in storage stability, suppresses foaming at the time of application, and imparts a good use feeling at the time of application by suppressing the occurrence of lumps when producing the skin cosmetic composition and suppressing the generation of aggregates in the obtained skin cosmetic.SOLUTION: The present invention relates to a skin cosmetic composition containing: component (A) a cationic surfactant having a specific structure; component (B) ceramide lipids; component (C) a higher alcohol having 12 or more and 22 or less carbon atoms; component (D) mono fatty acid glyceryl ester having 12 or more and 22 or less atoms; and component (E) at least one nonionic surfactant selected from a group consisting of polyoxyethylene mono fatty acid sorbitan ester having 12 to 22 carbon atoms and polyoxyethylene hydrogenated castor oil; wherein the total content ((B)+(C)+(D)) of the components (B),(C) and (D) in the skin cosmetic composition, the mass ratio ((A)/(B)) of the content of the component (A) to the content of the component (B) in the skin cosmetic composition, and the mass ratio ((A)/(E)) of the content of the component (A) to the content of the component (E) in the skin cosmetic composition are in specific ranges, respectively.SELECTED DRAWING: None

Description

  The present invention relates to a skin cosmetic composition.

As techniques for blending ceramides into an emulsified composition, there are those described in Patent Documents 1 and 2.
Patent Document 1 (Japanese Patent Application Laid-Open No. 2007-22997) includes, in an emulsified composition, a compound selected from ceramides, sphingosine, pseudosphingosine, or a salt thereof, an anionic surfactant, and a cationic surfactant. It describes that glycerin monofatty acid ester, higher alcohol, and water are used in combination. Thereby, it is said that an emulsified composition containing ceramides, having excellent storage stability, suppressing crystal precipitation, and having a high moisturizing effect can be obtained.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2015-13856) discloses an underwater solution that makes skin color unevenness difficult to see and covers naturally, is non-sticky, has a good feeling in use, and has good storage stability. As a technique for providing an oil-type emulsified skin cosmetic, an oil agent that is liquid at 25 ° C., an oil agent that is solid or semi-solid at 25 ° C., a linear alcohol having 12 to 22 carbon atoms, an ionic surfactant, and / or HLB12 It describes an oil-in-water emulsified skin cosmetic containing 5 to 15 nonionic surfactants and water, wherein the number average particle diameter of the emulsified particles is in a specific range. It is described that the oil-in-water emulsified skin cosmetic further contains a compound selected from ceramide and a ceramide-like compound.

JP 2007-22997 A Japanese Patent Laid-Open No. 2015-13856

  However, even using the above-described technology, it suppresses the generation of lumps during the production of skin cosmetics, and also suppresses the generation of aggregates in the obtained skin cosmetics, and is excellent in storage stability. There is room for improvement in terms of providing a skin cosmetic that suppresses foaming during application and provides a good feeling during use.

According to the present invention,
The following components (A), (B), (C), (D) and (E):
(A) Cationic surfactant represented by the following general formula (1)

(In the above general formula (1), R ¹ and R ² are the same or different and represent a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are The same or different, and represents an alkyl group having 1 to 3 carbon atoms, and X ⁻ represents a salt-forming anion).
(B) Ceramide lipids,
(C) a higher alcohol having 12 to 22 carbon atoms,
(D) a monofatty acid glyceryl ester having 12 to 22 carbon atoms, and
(E) A skin cosmetic composition comprising at least one nonionic surfactant selected from the group consisting of a polyoxyethylene monofatty acid sorbitan ester having 12 to 22 carbon atoms and polyoxyethylene hydrogenated castor oil. And
The total content ((B) + (C) + (D)) of the components (B), (C) and (D) in the skin cosmetic composition is based on the whole skin cosmetic composition 0.9 mass% or more and 9 mass% or less,
The mass ratio ((A) / (B)) of the content of the component (A) to the content of the component (B) in the skin cosmetic composition is 0.07 or more and 1.3 or less,
Skin cosmetics in which the mass ratio ((A) / (E)) of the content of the component (A) to the content of the component (E) in the skin cosmetic composition is 0.4 or more and 35 or less. A composition is provided.

Moreover, this invention provides the skin cosmetics containing the skin cosmetic composition in the said invention.
Moreover, this invention provides the moisturizing method including applying the skin cosmetics containing the skin cosmetic composition in the said invention to skin.

  According to the present invention, the occurrence of lumps during the production of skin cosmetics is suppressed, and the generation of aggregates in the obtained skin cosmetics is suppressed, resulting in excellent storage stability and foaming during application. It is possible to provide a skin cosmetic that suppresses the skin and imparts a good feeling during use.

The skin cosmetic composition in the present embodiment includes the following components (A) to (E).
Hereinafter, each component will be described with specific examples. Each component can be used alone or in combination of two or more.
Further, in the present embodiment, the feeling of use means that foaming when applying the skin cosmetic to the skin is suppressed, and that the skin is given a proper feeling when applied.
Further, in the present embodiment, “dama” means an aggregate having a macro size that can be visually observed, and when simply referred to as an aggregate, it means a micro size that can be confirmed by a microscope. . Dama, which is a macro-aggregate, is observed by a propeller of a stirrer or the like when manufacturing the skin cosmetic in the present embodiment, and the occurrence of such dama may cause the skin cosmetic to be locally uneven. In addition, there is a concern that productivity may be reduced because a process for removing these lumps is required. In addition, the micro-aggregates are present in the skin cosmetics even if the lumps are removed, and are considered to affect the storage stability of the skin cosmetics.

(Ingredient (A))
Component (A) is a cationic surfactant represented by the following general formula (1).

(In the above general formula (1), R ¹ and R ² are the same or different and represent a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are (The same or different, and represents an alkyl group having 1 to 3 carbon atoms, and X ⁻ represents a salt-forming anion.)

In the general formula (1), examples of the hydrocarbon group represented by R ¹ and R ² include linear or branched alkyl groups or alkenyl groups, preferably having 16 to 20 carbon atoms, more preferably 18 carbon atoms. An alkyl group or an alkenyl group, more preferably an alkyl group having 18 carbon atoms.
Examples of the hydrocarbon group represented by R ³ and R ⁴ include a methyl group, an ethyl group, and a propyl group, preferably R ³ or R ⁴ is a methyl group, and more preferably R ³ and R ⁴ are both It is a methyl group.
X ⁻ which is a salt-forming anion is a halogen ion selected from the group consisting of fluoride ion, chloride ion, bromide ion and iodide ion; phosphate ion, acetate ion, lactate ion, monoalkylsulfate ion Etc., preferably halogen ions, and more preferably chloride ions.

  Specific examples of the cationic surfactant represented by the general formula (1) include dicetyldimethylammonium chloride, distearyldimethylammonium chloride, diaralkyldimethylammonium chloride, dibehenyldimethylammonium chloride, and the like. Of these, from the viewpoint of suppressing the generation of aggregates in skin cosmetics, storage stability, preferably from the viewpoint of improving high-temperature storage stability, and from the viewpoint of improving emulsification properties, dicetyldimethylammonium chloride and chloride are preferable. One or more selected from distearyldimethylammonium. Examples of these commercially available products include VARISOFT 432 PPG (manufactured by Evonik) and VARISOFT TA 100 (manufactured by Evonik).

  The content of the component (A) in the skin cosmetic composition improves the emulsifiability and the viewpoint of suppressing the occurrence of aggregates in the skin cosmetic composition, storage stability, preferably improving the storage stability at high temperatures. From the viewpoint of making the skin cosmetic composition, it is preferably 0.05% by mass or more, more preferably 0.08% by mass or more, further preferably 0.15% by mass or more, and still more preferably 0.0% by mass or more. 3% by mass or more. Further, from the viewpoint of suppressing foaming when the skin cosmetic is applied to the skin, the content of the component (A) in the skin cosmetic composition is preferably 3% by mass or less based on the entire skin cosmetic composition. More preferably, it is 2 mass% or less, More preferably, it is 1.5 mass% or less, More preferably, it is 0.9 mass% or less.

(Ingredient (B))
Component (B) is a ceramide lipid. The ceramide lipids include both natural ceramide and pseudo-ceramide, and specifically represented by the following general formula (2).

(In the general formula (2), R ¹¹ is a linear, branched or cyclic saturated or unsaturated hydrocarbon having 4 to 30 carbon atoms, which may be substituted by a hydroxyl group, a carbonyl group or an amino group. Z represents a methylene group, a methine group or an oxygen atom; X ¹ , X ² and X ³ each independently represent a hydrogen atom, a hydroxyl group or an acetoxy group, X ⁴ represents a hydrogen atom, An acetyl group or a glyceryl group, or together with an adjacent oxygen atom to form an oxo group (provided that when Z is a methine group, ^one of X ¹ and X ² is a hydrogen atom, and the other is when nonexistent .X ⁴ forms an oxo group, X ³ is absent);. R ¹² and R ¹³ each independently represent a hydrogen atom, a hydroxyl group, a hydroxymethyl group or an acetoxymethyl group; R ^{1 4} may be substituted with a hydroxyl group, a carbonyl group or an amino group, and may have an ether bond, an ester bond or an amide bond in the main chain, a straight chain, branched chain or cyclic group having 5 to 60 carbon atoms A saturated or unsaturated hydrocarbon group; R ¹⁵ represents a hydrogen atom, or may have a substituent selected from a hydroxyl group, a hydroxyalkoxy group, an alkoxy group and an acetoxy group; Represents a straight-chain or branched saturated or unsaturated hydrocarbon group having 30 or less or less (provided that when R ¹¹ is a hydrogen atom and Z is an oxygen atom, R ¹⁵ is a hydrocarbon group having 10 to 30 carbon atoms in total) Yes, when R ¹¹ is a hydrocarbon group, R ¹⁵ is a hydrocarbon group having 1 to 8 carbon atoms in total.); The broken line portion may indicate an unsaturated bond.)

In general formula (2), R ¹¹ is optionally substituted by a hydroxyl group, a carbonyl group or an amino group, having 4 to 30 carbon atoms, preferably 7 or more carbon atoms optionally substituted by a hydroxyl group. 22 or less linear, branched or cyclic saturated or unsaturated hydrocarbon groups or hydrogen atoms.
Z represents a methylene group, a methine group or an oxygen atom.
X ¹ , X ² and X ³ each independently represent a hydrogen atom, a hydroxyl group or an acetoxy group. In particular, it is preferred that 0 or 1 of X ¹ , X ² and X ³ is a hydroxyl group and the remainder is a hydrogen atom. When Z is a methine group, only ^one of X ¹ and X ² is a hydrogen atom, and the other does not exist. X ⁴ is preferably a hydrogen atom or a glyceryl group. Also, when X ⁴ forms an oxo group, X ³ does not exist.

R ¹² and R ^{13 each} represent a hydrogen atom, a hydroxyl group, a hydroxymethyl group or an acetoxymethyl group, preferred R ¹² is a hydrogen atom or a hydroxymethyl group, and preferred R ¹³ is a hydrogen atom.

R ¹⁴ may be a hydroxyl group, a carbonyl group or an amino group, and the main chain may have an ether bond, an ester bond or an amide bond. Or a cyclic saturated or unsaturated hydrocarbon group. Preferably, a hydroxyl group or an amino group, which may be substituted, is a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 5 to 35 carbon atoms, or a hydroxyl group at the ω position of the hydrocarbon group. Examples thereof include an ester bond or an amide bond of a linear, branched or cyclic saturated or unsaturated fatty acid having 8 to 22 carbon atoms which may be substituted. As the fatty acid to be bonded, isostearic acid, 12-hydroxystearic acid or linoleic acid is preferable.

R ¹⁵ represents a hydrogen atom, or may have a substituent selected from a hydroxyl group, a hydroxyalkoxy group, an alkoxy group, and an acetoxy group. It is an unsaturated hydrocarbon group. When R ¹¹ is a hydrogen atom and Z is an oxygen atom, R ¹⁵ is a hydrocarbon group having 10 to 30 carbon atoms in total. When R ¹¹ is a hydrocarbon group, R ¹⁵ is a hydrocarbon group having 1 to 8 carbon atoms in total. Among these, a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms in total, which is selected from a hydroxyl group, a hydroxyalkoxy group and an alkoxy group and which may be substituted by 1 or more and 3 or less, is preferable. Here, the hydroxyalkoxy group and the alkoxy group are preferably those having 1 to 7 carbon atoms.

  As the component (B), one or more selected from natural ceramide and pseudo-ceramide (hereinafter also referred to as “pseudo-ceramide”) can be used. Specifically, ceramides described in JP2013-53146A can be used.

  Specific examples of natural ceramides include ceramides Type 1 to 7 in which sphingosine, dihydrosphingosine, phytosphingosine or sphingadienin is amidated (for example, J. Lipid Res., 24: 759 (1983), FIG. And porcine and human ceramides described in FIG. 4 of J. Lipid. Res., 35: 2069 (1994)).

Furthermore, these N-alkyl bodies (for example, N-methyl body) are also included.
These ceramides may be either natural (D (−)) optically active or non-natural (L (+)) optically active, or a mixture of natural and nonnatural. May be used. The relative configuration of the above compound may be a natural configuration, a non-natural configuration other than that, or a mixture thereof. Among these, compounds of CERAMIDE1, CERAMIDE2, CERAMIDE3, CERAMIDE5, CERAMIDE6II (above, INCI, 8th Edition) and those represented by the following formula are preferable.

  These may be any of natural extracts and synthetic products, and commercially available products can be used. Examples of such commercially available ceramides include Ceramide I, Ceramide III, Ceramide IIIA, Ceramide IIIB, Ceramide IIIC, Ceramide VI (above, manufactured by Cosmo Farm), Ceramide TIC-001 (manufactured by Takasago Fragrance Co., Ltd.), CERAMIDE II (manufactured by Quest International), DS-Ceramide VI, DS-CLA-Phytoceramide, Phytoceramide, DS-ceramide Y3S (manufactured by DOOSAN), CERAMIDE2 (manufactured by Sederma) and the like.

Moreover, what is shown to following General formula (3) is mentioned as pseudo-type ceramide.

(In the general formula (3), R ²⁵ represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group or a hydrogen atom having 10 to 22 carbon atoms which may be substituted by a hydroxyl group. X ¹⁹ represents a hydrogen atom, an acetyl group or a glyceryl group; R ²⁶ represents a linear, branched or cyclic saturated or unsaturated group having 5 to 22 carbon atoms which may be substituted with a hydroxyl group or an amino group; A hydrocarbon group, or a straight-chain or branched saturated or unsaturated fatty acid having 8 to 22 carbon atoms, which may be substituted with a hydroxyl group, ester-bonded to the ω end of the hydrocarbon group it is shown; or R ²⁷ is a hydrogen atom, a hydroxyl group, hydroxyalkoxy group, an alkoxy group or acetoxy group substituted by number a total or carbon optionally 1 to 30 alkyl group It is.)

R ²⁶ is preferably nonyl, tridecyl, pentadecyl, an undecyl group in which linoleic acid is ester-bonded to the ω position, a pentadecyl group in which linoleic acid is ester-bonded to the ω position, and pentadecyl in which 12-hydroxystearic acid is ester-bonded to the ω position. Group, an undecyl group in which methyl branched isostearic acid is amide-bonded at the ω position.

When R ²⁵ is a hydrogen atom, R ²⁷ is an alkyl having a total carbon number of 10 to 30 and preferably a total carbon number of 12 to 20 which may be substituted by a hydroxyl group, a hydroxyalkoxy group, an alkoxy group or an acetoxy group. R ²⁷ represents a hydrogen atom when R ²⁵ is a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 10 to 22 carbon atoms which may be substituted by a hydroxyl group. Or a hydroxyl group, a hydroxyalkoxy group, an alkoxy group or an acetoxy group, preferably an alkyl group having 1 to 8 carbon atoms in total. The hydroxyalkoxy or alkoxy group R ²⁷ preferably has 1 to 7 carbon atoms.
Specific examples of the compound represented by the general formula (3) include those represented by the following formula.

In general formula (3), R ²⁵ is a hexadecyl group, X ¹⁹ is a hydrogen atom, R ²⁶ is a pentadecyl group, R ²⁷ is a hydroxyethyl group; R ²⁵ is a hexadecyl group, and X ¹⁹ is hydrogen. A pseudo-ceramide having an atom, R ²⁶ is a nonyl group, and R ²⁷ is a hydroxyethyl group is preferred. R ^{25 in the} general formula (3) is a hexadecyl group, X ¹⁹ is a hydrogen atom, R ²⁶ is a pentadecyl group, and R ²⁷ is hydroxy. Those having an ethyl group (N- (hexadecyloxyhydroxypropyl) -N-hydroxyethylhexadecanamide, for example, Sofcare Ceramide Sphingolipid (SL) -E manufactured by Kao Corporation) are more preferable. Moreover, what is represented by following Formula is also preferable.

  The content of the component (B) in the skin cosmetic composition is preferably 0.05% by mass or more, more preferably, based on the whole skin cosmetic composition, from the viewpoint of improving the richness at the time of application. It is 0.1% by mass or more, more preferably 0.5% by mass or more, and still more preferably 0.9% by mass or more. Further, from the viewpoint of suppressing the occurrence of aggregates in the skin cosmetic and improving the spreadability during application, the content of the component (B) in the skin cosmetic composition is: Preferably it is 15 mass% or less with respect to the whole composition, More preferably, it is 10 mass% or less, More preferably, it is 5 mass% or less, More preferably, it is 3 mass% or less.

  Further, the mass ratio of the content of the component (A) to the content of the component (B) in the skin cosmetic composition ((A) / (B)) suppresses the generation of aggregates in the skin cosmetic. From the viewpoint of improving storage stability, preferably storage stability at high temperatures, it is 0.07 or more, preferably 0.09 or more, more preferably 0.15 or more, and further preferably 0.25 or more. In addition, it is 1.3 or less, preferably 0.8 or less, more preferably 0.6 or less, and still more preferably 0.45 or less.

(Ingredient (C))
Component (C) is a higher alcohol having 12 to 22 carbon atoms.
The number of carbon atoms of component (C) is preferably 14 or more, more preferably 16 or more, and preferably from the viewpoint of suppressing the precipitation of ceramide lipids of component (B) and giving a preferable feeling of use. 20 or less, more preferably 18 or less.

  A component (C) can be used 1 type or in combination of 2 or more types. Specific examples of the component (C) include monohydric alcohols such as myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, and oleyl alcohol. Among these, those having a linear alkyl group are preferred, more preferably a monohydric alcohol having 16 to 18 carbon atoms, still more preferably one or more selected from cetyl alcohol and stearyl alcohol, and even more. Cetyl alcohol is preferred.

  The content of the component (C) in the skin cosmetic composition is sufficient for the entire skin cosmetic composition from the viewpoint of enhancing the feeling of application when it is applied to the skin while suppressing the formation of aggregates in the skin cosmetic. On the other hand, it is preferably 0.02% by mass or more, more preferably 0.1% by mass or more, further preferably 0.2% by mass or more, and still more preferably 0.3% by mass or more. Further, from the viewpoint of suppressing the generation of agglomerates in the skin cosmetic and improving the storage stability of the skin cosmetic, preferably the high temperature storage stability, while improving the spreadability when applied to the skin. The content of the component (C) in the cosmetic composition is preferably 5% by mass or less, more preferably 3.5% by mass or less, and further preferably 1.5% by mass with respect to the entire skin cosmetic composition. % Or less, still more preferably 1% by mass or less.

(Component (D))
Component (D) is a mono fatty acid glyceryl ester having 12 to 22 carbon atoms.
The number of carbon atoms of the component (D) is preferably 14 or more, more preferably 16 or more, from the viewpoint of suppressing the precipitation of the component (B) and giving a preferable feeling of use.

  Specific examples of component (D) include glycerol monolaurate, glycerol monomyristic ester, glycerol monopalmitate, glycerol monostearate, glycerol monobehenate, glycerol monooleate, glycerol monoisostearate, Examples thereof include glycerin monoarachidic acid ester and glycerin monolinoleic acid ester. Among these, from the viewpoint described above, preferably one or more selected from the group consisting of glycerol monobehenate, glycerol monostearate, and glycerol monopalmitate, more preferably glycerol monobehenate. .

  The content of the component (D) in the skin cosmetic composition is sufficient for the entire skin cosmetic composition from the viewpoint of enhancing the feeling of application when it is applied to the skin while suppressing the generation of aggregates in the skin cosmetic. On the other hand, it is preferably 0.02% by mass or more, more preferably 0.05% by mass or more, further preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, and even more preferably 0.3% by mass. It is at least mass%. Further, from the viewpoint of suppressing the generation of aggregates in the skin cosmetic and improving the storage stability of the skin cosmetic, preferably the high temperature storage stability, while improving the spread when applied to the skin, the skin cosmetic The content of the component (D) in the composition is preferably 5% by mass or less, more preferably 3.5% by mass or less, further preferably 1.5% by mass or less, based on the entire skin cosmetic composition. Even more preferably, it is 1% by mass or less.

  Further, the total content of the components (C) and (D) in the skin cosmetic composition ((C) + (D)) suppresses the generation of aggregates in the skin cosmetic, and the skin cosmetic From the viewpoint of improving the storage stability of the skin cosmetic composition, preferably at high temperatures, it is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and still more preferably based on the entire skin cosmetic composition. Is 0.4% by mass or more, more preferably 0.5% by mass or more, preferably 7% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass or less, and even more. Preferably it is 2 mass% or less.

  Further, the mass ratio ((C) / (D)) of the content of the component (C) to the content of the component (D) in the skin cosmetic composition suppresses the generation of aggregates in the skin cosmetic. In addition, from the viewpoint of increasing storage stability, preferably from the viewpoint of increasing storage stability at high temperatures, the skin cosmetic composition as a whole is preferably 0.1 or more, more preferably 0.2 or more, and even more preferably 0. 0.7 or more, preferably 10 or less, more preferably 5 or less, and still more preferably 3 or less.

  Further, the sum of the contents of the components (B), (C) and (D) ((B) + (C) + (D)) in the skin cosmetic composition is the occurrence of aggregates in the skin cosmetic. Is 0.9% by mass or more based on the total amount of the skin cosmetic composition from the viewpoint of enhancing storage stability, preferably storage stability at high temperature, and enhancing the feeling of body when applied to the skin. 1 mass% or more, preferably 1.1 mass% or more, more preferably 1.5 mass% or more, and 9 mass% or less, preferably 7 mass% or less, more preferably 6 It is below mass%.

(Ingredient (E))
Component (E) is at least one nonionic surfactant selected from the group consisting of polyoxyethylene monofatty acid sorbitan esters having 12 to 22 carbon atoms and polyoxyethylene hydrogenated castor oil.

Among these, the number of carbon atoms of the fatty acid in the polyoxyethylene monofatty acid sorbitan ester having 12 to 22 carbon atoms suppresses the occurrence of lumps during production and suppresses the generation of aggregates in the skin cosmetic. , Preferably 14 or more, more preferably 16 or more, and preferably 20 or less.
Examples of the polyoxyethylene monofatty acid sorbitan ester having 12 to 22 carbon atoms include polymyethylene polymyethylene sorbitan monomyristate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monobehenate, and the like. Preferably, it is polyoxyethylene sorbitan monostearate.

  In addition, the number of moles of ethylene oxide added in the polyoxyethylene monofatty acid sorbitan ester having 12 to 22 carbon atoms suppresses the occurrence of lumps during production and suppresses the generation of aggregates in skin cosmetics. Preferably it is 5 or more, More preferably, it is 10 or more, Preferably it is 40 or less, More preferably, it is 30 or less.

  The content of the component (E) in the skin cosmetic composition is based on the whole skin cosmetic composition from the viewpoint of suppressing the occurrence of lumps during production and suppressing the formation of aggregates in the skin cosmetic. Preferably, it is 0.01 mass% or more, More preferably, it is 0.02 mass% or more, More preferably, it is 0.06 mass% or more. Further, from the viewpoint of enhancing the storage stability, preferably storage stability at high temperatures and the rich feeling when applying the skin cosmetic, the content of the component (E) in the skin cosmetic composition is the skin cosmetic composition. Preferably it is 2 mass% or less with respect to the whole thing, More preferably, it is 1 mass% or less, More preferably, it is 0.7 mass% or less, More preferably, it is 0.5 mass% or less.

  Moreover, the mass ratio ((A) / (E)) of the content of the component (A) to the content of the component (E) in the skin cosmetic composition suppresses the occurrence of lumps during production, and the skin makeup From the viewpoint of suppressing the generation of aggregates in the preparation and enhancing the storage stability, preferably storage stability at high temperatures, it is 0.4 or more with respect to the entire skin cosmetic composition, preferably 0.5 Above, more preferably 0.8 or more, and 35 or less, preferably 20 or less, more preferably 10 or less, and further preferably 7 or less.

  Moreover, the skin cosmetic composition in the present embodiment may contain water, and the content of water can be, for example, the remainder excluding components other than water in the cosmetic.

Next, the manufacturing method of the skin cosmetics containing the skin cosmetic composition in this embodiment is demonstrated. In this embodiment, skin cosmetics are manufactured according to the dosage form.
For example, the skin cosmetic in the present embodiment can be produced by simultaneously blending the components (A) to (E) and other components as appropriate. Or the skin cosmetics of this embodiment can also be obtained with the following method.
1. Components (A) to (E) and other oil-soluble components are dissolved by heating to about 80 ° C., completely dissolved, and stirred until uniform to obtain an oil phase.
2. Water and other water-soluble components are heated to about 80 ° C. to obtain an aqueous phase.
3. While stirring the oil phase, the aqueous phase is added to the oil phase and stirred to obtain an emulsion. Then, it is cooled to room temperature (25 ° C., the same shall apply hereinafter) with stirring.

The skin cosmetic obtained by this embodiment is a cosmetic containing the above components (A) to (E), and more specifically, an emulsified cosmetic containing the above components (A) to (E). is there.
The skin cosmetic obtained by the present embodiment can be in various forms, for example, lotion, gel lotion, gel, milky lotion, cream, hair cream, hand cream, emulsifying foundation, cosmetic liquid and the like.

Moreover, the skin cosmetics of this embodiment can be used by apply | coating to skin, especially the skin except hair, Preferably it applies to either a face, a body, a limb, etc. Moreover, the skin cosmetics of this embodiment can also be used for scalp and hair.
Moreover, the moisturizing method in the present embodiment includes applying a skin cosmetic containing the skin cosmetic composition of the present embodiment to the skin, and preferably includes applying the skin cosmetic to the skin.

In this embodiment, components (A) to (E) are used in combination, and (((B) + (C) + (D))), ((A) / (B)) and ((A) / (E)) is a composition within a specific range, so that crystallization of the ceramides of component (D) is suppressed, and the ceramides are stably blended and are excellent in production stability and storage stability. It is possible to obtain a skin cosmetic that gives a favorable feeling to the skin.
Specifically, by using the composition in the present embodiment, it is possible to suppress the occurrence of lumps when manufacturing skin cosmetics, and to suppress the generation of aggregates in skin cosmetics. it can. Moreover, the storage stability of skin cosmetics can be improved. For example, the storage stability of the skin cosmetic at a high temperature of about 60 ° C. can be improved, or the storage stability of the skin cosmetic at a low temperature of about −15 ° C. can be improved.
Further, according to the present embodiment, foaming can be suppressed when the skin cosmetic is applied by applying to the skin. In addition, according to the present embodiment, it is possible to enhance the feeling of body when applied to the skin during application or the like.

  In addition, the skin cosmetic composition in the present embodiment includes various optional components used for normal cosmetics, quasi-drugs, pharmaceuticals, and the like in addition to the above-described components, as long as the effects of the present invention are not impaired. A), surfactants other than (D) and (E), oil components other than components (A) to (E), sterols, polysaccharides, amino acids, plant extracts, humectants, powders, oil gels Agents, film-forming agents, anti-inflammatory agents, antioxidants, pH adjusters, alcohols other than component (C), UV absorbers, preservatives, dyes, fragrances, thickeners, and the like can be appropriately blended. .

For example, the skin cosmetic composition in the present embodiment may further contain silicone oil of component (F) as an oily component other than components (A) to (E).
Specific examples of component (F) silicone oil include methylpolysiloxanes such as dimethylpolysiloxane; dimethylcyclopolysiloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane; methylphenylpolysiloxanes; and other polyorganosiloxanes. Is mentioned.
More specifically, as the component (F), KF-96L-2cs, KF-96A-5cs, KF-96A-10cs, KF-96A-50cs, KF995 (manufactured by Shin-Etsu Chemical Co., Ltd.), SH200C Fluid- Commercially available products such as 2cs, SH200C Fluid-5cs, SH200C Fluid-10cs, SH244, SH245, and SH246 (above, manufactured by Toray Dow Corning) can be used. Of these, methylpolysiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane are preferred, and methylpolysiloxane is more preferred from the viewpoint of enhancing the effect of suppressing foaming during the application of skin cosmetics.

  The content of the component (F) in the skin cosmetic composition is preferably 0.05% by mass or more based on the whole skin cosmetic composition from the viewpoint of further enhancing the effect of suppressing foaming during application, and more Preferably it is 0.15 mass% or more, More preferably, it is 1 mass% or more, Preferably it is 10 mass% or less, More preferably, it is 5 mass% or less, More preferably, it is 3 mass% or less.

The skin cosmetic composition of the present embodiment may further contain a moisturizing agent, and examples of the moisturizing agent include glycol, glycerin, glucose, maltose, maltitol, sucrose, fructose, xylitol, sorbitol, maltotriose, and threitol. Erythritol, amylolytic sugar reducing alcohol, sorbitol, ethylene glycol, 1,4-butylene glycol, diglycerin, triglycerin, tetraglycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3 -Propanediol and the like.
Further, polyoxyethylene methyl glucoside such as methyl glucose-10 and methyl glucose-20, and polyoxypropylene methyl glucoside such as PPG-20 methyl glucose ester may be used.
The content of these humectants in the skin cosmetic composition is preferably 0.01% by mass or more, more preferably 1% by mass or more, based on the whole skin cosmetic composition from the viewpoint of enhancing the moist feeling of the skin. More preferably, it is 5% by mass or more, preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass or less.

The skin cosmetic composition of the present embodiment may further contain an anti-inflammatory agent, and examples of the anti-inflammatory agent include glycyrrhizic acid and its salt, glycyrrhetinic acid and its salt, epsilon aminocaproic acid and its salt, allantoin, and lysozyme chloride. , Guaiazulene, methyl salicylate, γ-oryzanol and the like.
The content of these anti-inflammatory agents in the skin cosmetic composition is preferably 0.001% by mass or more, more preferably, based on the whole skin cosmetic composition from the viewpoint of enhancing the anti-inflammatory effect of the skin. It is 0.01 mass% or more, More preferably, it is 0.05 mass% or more, Preferably it is 2 mass% or less, More preferably, it is 1 mass% or less, More preferably, it is 0.5 mass% or less.

The skin cosmetic composition of the present embodiment may further contain a preservative, and examples of the preservative include paraoxybenzoic acid esters (parabens) such as methylparaben, dehydroacetic acid and salts thereof, and phenoxyethanol.
The content of these preservatives in the skin cosmetic composition is preferably 0.01% by mass or more, more preferably based on the whole skin cosmetic composition from the viewpoint of enhancing the storage stability of the cosmetic. It is 0.05 mass% or more, More preferably, it is 0.1 mass% or more, Preferably it is 2 mass% or less, More preferably, it is 1 mass% or less.

The skin cosmetic composition of the present embodiment may further contain a plant extract. Examples of the plant extract include Ashitaba, Azuki, Avocado, Achacha, Achachatsuru, Arteca, Arnica, Almond, Aloe, Apricot, Nettle, Iris, Fennel, Turmeric, Ages, Ogon, Obakaku, Oren, Barley, Okra, Hypericum, Olysam, Onionis, Dutch mustard, Oysters, Cuckoo, Valeriana, Birch, Gama, Chamomile, Chamomile, Oats, Cucumber, Kiwi , Kyonin, Kukui nut, Gardenia, Kumazasa, Walnut, Keihi, Mulberry, Gunjo, Gentiana, Gennoshouko, Burdock, Sesame, Wheat, Rice, Sasanqua, Saffron, Hawthorn, Salamander, Shiitake, Giant, Shikon Perilla, linden, spirea, peonies, ginger, ginger, birch, honeysuckle, horsetail, stevia, pheasant, hawthorn, elderberry, elephant, yarrow, yarrow, sage, mallow, semen Dime, tea, clove, chimpanzee, evening primrose, camellia, camellia, prickly peas, touki, radish, peony, spruce, corn, doctomi, tomato, carrot, garlic, wild rose, bakuga, parsley, hollyhump, mint, papaya, hamamelis , Roses, cypress, sunflower, loquat, dandelion, grape, placenta, hazelnut, loofah, safflower, bodaige, button, hop, macadamia nut, pine, pine Nie, Melissa, Merrilot, Peach, Peach, Cornflower, Palm, Eucalyptus, Saxifrage, Lily, Yokuinin, Mugwort, Rye, Peanut, Lavender, Apple, Ganoderma, Lettuce, Lemon, Astragalus, Rosemary, Roman Chamomile, Buttercup, Kisage, Examples thereof include extracts obtained from ordinary plants such as asunalo, hortsoh, cypress, pheasant, senki, chickweed, floating grass, kawara mugwort, ginkgo biloba, chrysanthemum, kumazasa, mukuroji, forsythia and the like. Of these, extracts obtained from hamamelis, buttons, hornbill, catalpa, asunalo, eucalyptus, maltium, toad, or pheasant are preferred.
When these plant extracts are blended, the dry solid content is preferably blended by about 0.0001% by mass or more and 10% by mass or less with respect to the entire skin cosmetic composition.

  As mentioned above, although embodiment of this invention was described, these are illustrations of this invention and various structures other than the above are also employable.

(Examples 1-18 and Comparative Examples 1-14)
The skin cosmetics having the compositions shown in Tables 1 to 3 were manufactured, and the method described later was used to prevent the formation of aggregates, no lumps during manufacture, storage stability, and feeling of use (no foaming during application, It was evaluated for (feeling of richness). The results are also shown in Tables 1 to 3.

(Production method)
The ingredients of Phase I were heated and mixed at 80 to 95 ° C. and emulsified by adding Phase II heated at 80 to 95 ° C. while stirring at 200 rpm with a stirrer having a propeller. The skin cosmetic of each case was obtained.

(Evaluation method)
(Aggregates)
0.1 mL of the skin cosmetic of each example immediately after production obtained by the above production method was dropped on a slide glass, and the presence or absence of aggregates was observed with an optical microscope (20 times). The presence or absence of aggregates was evaluated with 1 as the case where aggregates were confirmed over the entire field of view and 4 when no aggregates were confirmed.

(Dama at manufacturing)
The presence or absence of lumps adhering to the propeller at the end of production of the skin cosmetics of each example was visually confirmed. The case where a dama was confirmed on one side of the propeller was 1 and the case where no dama was confirmed was 4, and the presence or absence of a dama at the time of production was evaluated.

(Storage stability)
30 g of the skin cosmetic material of each example obtained by the above production method was put in a 50 mL transparent screw tube, and a cycle test (a cycle of −15 ° C. to 60 ° C. to −15 ° C./1 day, 6 days) was performed. The skin cosmetic after the test was compared with the skin cosmetic before the test. The storage stability was evaluated with a level of 1 that was unfavorable for use as a product with a large change, increased or decreased viscosity, and 4 when there was no change at all.

(Feeling of use)
10 expert panelists gave a 4-level evaluation in the order of good feeling for "feeling of mouth" and "no foaming at the time of application" when 0.5 g of each skin cosmetic composition was applied to the forearm area. An average score of 2 or more people was accepted.

In Tables 1 to 3, the following raw materials were used as the respective components.
* 1 N- (hexadecyloxyhydroxypropyl) -N-hydroxyethylhexadecanamide: Sphingolipid E, manufactured by Kao Corporation * 2 Cetanol: Cetyl alcohol NX, manufactured by Higher Alcohol Industry * 3 Glycerin fatty acid ester: Sunsoft No . 8100-C, Taiyo Kagaku Co., Ltd. * 4 Distearyldimethylammonium chloride: VARISOFT TA-100, Evonik Co., Ltd. * 5 Polysoxyethylene sorbitan monostearate: Leodol TWS-120V, manufactured by Kao (20 moles of ethylene oxide added)
* 6 Polyethylene hydrogenated castor oil: Emanon CH60, manufactured by Kao Corporation * 7 Polyoxyethylene 2-hexyldecyl ether: Emulgen 1620G, manufactured by Kao Corporation * 8 Polyoxyethylene octyldodecyl ether: Emalex OD-20, manufactured by Nippon Emulsion Co., Ltd. * 9 Methylpolysiloxane: Silicone KF-96A-50CS, manufactured by Shin-Etsu Chemical Co., Ltd. * 10 Glycerin: Concentrated glycerin, manufactured by Kao Corporation * 11 Methylparaben: Plating, M, manufactured by Ueno Pharmaceutical Co., Ltd.

  From Table 1 to Table 3, in each Example, components (A) to (E) are used in combination, and ((B) + (C) + (D)), ((A) / (B) ) And ((A) / (E)) are in a specific range, so that the generation of lumps during production of skin cosmetics and the suppression and storage of aggregates in the resulting skin cosmetics are preserved. The balance of the effects was excellent in terms of stability, specifically, storage stability from low temperature to high temperature, moderate feeling during application, and suppression of foaming during application.

(Prescription Examples 1 and 2)
Table 4 shows examples of skin cosmetic formulations.
The skin cosmetics of each formulation example were produced by the following procedure. That is, the ingredients of Phase I were heated and mixed at 80 ° C. to 95 ° C., and then added with Phase II heated to 80 ° C. to 95 ° C. with propeller stirring (200 rpm) and emulsified, and gradually increased to 25 ° C. After cooling, it was prepared by adding Phase III.

In Table 4, the components described above and the following components were used.
* 12 Allantoin: S-Allantoin, manufactured by Kawaken Fine Chemical Co., Ltd. * 13 Phenoxyethanol: Hisolv EPH, manufactured by Toho Chemical Industry Co., Ltd. * 14 Eucalyptus extract: Eucalyptus extract EBL, manufactured by Tianjin Rikisei Pharmaceutical Co., Ltd. * 15 Asunaro Extract: Asunaro Liquid K -B, made by Ichimaru Falcos

Claims (6)

The following components (A), (B), (C), (D) and (E):
(A) Cationic surfactant represented by the following general formula (1)

(In the above general formula (1), R ¹ and R ² are the same or different and represent a linear or branched saturated or unsaturated hydrocarbon group having 16 to 22 carbon atoms, and R ³ and R ⁴ are The same or different, and represents an alkyl group having 1 to 3 carbon atoms, and X ⁻ represents a salt-forming anion).
(B) Ceramide lipids,
(C) a higher alcohol having 12 to 22 carbon atoms,
(D) a monofatty acid glyceryl ester having 12 to 22 carbon atoms, and
(E) A skin cosmetic composition comprising at least one nonionic surfactant selected from the group consisting of a polyoxyethylene monofatty acid sorbitan ester having 12 to 22 carbon atoms and polyoxyethylene hydrogenated castor oil. And
The total content ((B) + (C) + (D)) of the components (B), (C) and (D) in the skin cosmetic composition is based on the whole skin cosmetic composition 0.9 mass% or more and 9 mass% or less,
The mass ratio ((A) / (B)) of the content of the component (A) to the content of the component (B) in the skin cosmetic composition is 0.07 or more and 1.3 or less,
Skin cosmetics in which the mass ratio ((A) / (E)) of the content of the component (A) to the content of the component (E) in the skin cosmetic composition is 0.4 or more and 35 or less. Composition.   The total content of the components (C) and (D) ((C) + (D)) in the skin cosmetic composition is 0.05% by mass or more and 7% by mass with respect to the entire skin cosmetic composition. The skin cosmetic composition according to claim 1, which is not more than%.   The skin cosmetic composition according to claim 1 or 2, further comprising a component (F) silicone oil.   The content of the component (D) in the skin cosmetic composition is 0.05% by mass or more and 5% by mass or less with respect to the entire skin cosmetic composition. The skin cosmetic composition described in 1.   A skin cosmetic comprising the skin cosmetic composition according to any one of claims 1 to 4.   A moisturizing method comprising applying the skin cosmetic according to claim 5 to the skin.