JP2011144130A - Oil-in-water type emulsified skin cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil-in-water type emulsified cosmetic that attains excellent skin-improving effects, easily spreads, is not sticky and exhibits an excellent penetrating feeling without compounding glycerine in such a large amount as high as 10% or higher. <P>SOLUTION: The oil-in-water type emulsified skin cosmetic comprises (a) 5.0-12.0 mass% of an ester oil having an IOB value of 0.1-0.6, (b) 0.1-3.0 mass% of a hydrogenated phospholipid, (c) 1.0-5.0 mass% of tricaprylic acid glyceryl and/or tri(caprylic acid/capric acid) glyceryl and/or (caprylic acid/capric acid/palm oil fatty acid) glyceryl, (d) 3.0-8.0 mass% of glycerol, (e) a hydrophilic surfactant and (f) water. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

    The present invention relates to an oil-in-water emulsified skin cosmetic excellent in usability and skin improvement effect. More specifically, a system in which ester oil is highly blended and hydrogenated phospholipid and glyceryl tricaprylate and / or tri (caprylic acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl are blended. And it is related with the oil-in-water type emulsified skin cosmetics which are excellent in usability and the skin improvement effect.

  Conventionally, glycerin is known as a cosmetic ingredient having a skin improvement effect such as a high moisturizing effect and a rough skin improvement effect. However, in order to obtain an excellent skin improvement effect (improvement of moistness, improvement of elasticity), when glycerin is highly blended, a high skin improvement effect is obtained, but depending on the blending amount, freshness and active ingredients are It lacks the permeation feeling that permeates the skin and has the disadvantage of causing stickiness.

  Therefore, in recent years, attempts have been made to blend fatty acid glycerin esters, specific water-soluble solid silicones, organopolysiloxane elastomer powders, etc. in order to reduce and refresh the stickiness due to the blending of glycerin (for example, Patent Documents 1 to 3). 3). However, in these conventional technologies, in order to reliably obtain a high skin improvement effect by glycerin, in a system where glycerin is highly blended at 10% by mass or more, the stickiness reduction effect has not been sufficiently satisfied. The current situation is that there is a problem.

JP 11-246329 A JP 2000-191428 A JP 2002-356416 A

  The present invention has been made in view of the above-described conventional circumstances, and can surely obtain an excellent skin improvement effect without performing a high blending of glycerin of 10% by mass or more, and lightly spreads on the skin. Provides an oil-in-water emulsified skin cosmetic that is not sticky, has an excellent permeation of active ingredients (penetration), and exhibits excellent skin improvement effects (improvement of moisturization, improvement of elasticity) For the purpose.

  In order to solve the above problems, the present invention provides (a) 5.0 to 12.0% by mass of an ester oil having an IOB value of 0.1 to 0.6, and (b) 0.1 to 3 of hydrogenated phospholipid. 0.0 mass%, (c) glyceryl tricaprylate and / or tri (caprylic acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl 1.0-5.0 mass%, Provided is an oil-in-water emulsified skin cosmetic containing (d) 3.0 to 8.0% by mass of glycerin, (e) a hydrophilic surfactant, and (f) water.

In the present invention, the component (a) is composed of isopropyl myristate (IOB = 0.18), isodecyl isononanoate (IOB = 0.19), octyldodecyl neopentanoate (IOB = 0.13), isostearyl neopentanoate (IOB). = 0.14), isopropyl palmitate (IOB = 0.16), hexyl laurate (IOB = 0.17),
Hexyldecyl ethylhexanoate (IOB = 0.13), isotridecyl isononanoate (IOB = 0.16), isopropyl isostearate (IOB = 0.15), ethyl isostearate (IOB = 0.15), ethylhexyl palmitate ( IOB = 0.13), octyldodecyl neodecanoate (IOB = 0.11), polyglyceryl-2 tetraisostearate (IOB = 0.17), pentaerythrityl tetraisostearate (IOB = 0.15), isocetyl myristate (IOB = 0.10), trimethylolpropane triisostearate (IOB = 0.16), neopentyl glycol diethylhexanoate (IOB = 0.32), trimethylolpropane triethylhexanoate (IOB = 0.33), Tetraethyl hex Pentaerythrityl acid (IOB = 0.35), diisopropyl adipate (IOB = 0.46), diisostearyl malate (IOB = 0.28), neopentyl glycol dicaprate (IOB = 0.25), Dineopentanoic acid tripropylene glycol (IOB = 0.52), isodecylbenzoate (IOB = 0.23), propylene glycol dicaprylate (IOB = 0.32), isononyl isononanoate (IOB = 0.2), ethylhexyl isononanoate (IOB = 0.2), isodecyl neopentanoate (IOB = 0.22), ethylhexyl ethylhexanoate (IOB = 0.2), cetyl ethylhexanoate (IOB = 0.13), glyceryl triethylhexanoate (IOB = 0.36), diethylhexyl succinate (IOB) Providing the oil-in-water emulsified skin cosmetic is that selected one or two or more from the group consisting of 0.32).

  Moreover, this invention provides the said oil-in-water type emulsified skin cosmetics whose content of the phosphatidylcholine contained in (b) component hydrogenated phospholipid is 50 mass% or more.

  Moreover, this invention provides the said oil-in-water type emulsified skin cosmetic whose ratio of caprylic acid: capric acid contained in (c) component tri (caprylic acid / capric acid) glyceryl is 60-80: 40-20. .

  According to the present invention, the skin spreads lightly, is not sticky, has an excellent permeation feeling that the active ingredient penetrates into the skin, gives moisture, is moist, and has a high skin improvement effect even without high blending of glycerin An oil-in-water emulsified skin cosmetic that can exhibit the above is provided.

  Hereinafter, the present invention will be described in detail.

In the present invention, an ester oil having an IOB value of 0.1 to 0.6 is used as the component (a). Specific examples of the component (a) include the following, but are not limited thereto. For example, isopropyl myristate (IOB = 0.18), isodecyl isononanoate (IOB = 0.19), isodecyl neopentanoate (IOB = 0.2), octyldodecyl neopentanoate (IOB = 0.13), isopentanoic acid iso Stearyl (IOB = 0.14), isopropyl palmitate (IOB = 0.16), hexyl laurate (IOB = 0.17), hexyldecyl ethylhexanoate (IOB = 0.13), isotridecyl isononanoate (IOB = 0.16), isopropyl isostearate (IOB = 0.15), ethyl isostearate (IOB = 0.15), ethylhexyl palmitate (IOB = 0.13), octyldodecyl neodecanoate (IOB = 0.11), Polyglyceryl-2 tetraisostearate (I B = 0.17), pentaerythrityl tetraisostearate (IOB = 0.15), isocetyl myristate (IOB = 0.10), trimethylolpropane triisostearate (IOB = 0.16), neo-diethylhexanoate Pentyl glycol (IOB = 0.32), trimethylolpropane triethylhexanoate (IOB = 0.33), pentaerythrityl tetraethylhexanoate (IOB = 0.35), diisopropyl adipate (IOB = 0.46), apple Diisostearyl acid (IOB = 0.28), neopentyl glycol dicaprate (IOB = 0.25), tripropylene glycolineopentanoate (IOB = 0.52), isodecylbenzoate (IOB = 0.23), dicapril Acid propylene glycol (I B = 0.32), isononyl isononanoate (IOB = 0.2), ethylhexyl isononanoate (IOB = 0.2), isodecyl neopentanoate (IOB = 0.22), ethylhexyl ethylhexanoate (IOB = 0.2) ), Cetyl ethylhexanoate (IOB = 0.13), glyceryl triethylhexanoate (IOB = 0.36), diethylhexyl succinate (IOB = 0.32), and the like.
The said (a) component can use 1 type (s) or 2 or more types.

The said ester oil is an ester oil whose IOB value in an organic conceptual diagram is 0.1-0.6 from the point of being refreshing and not sticky. An ester oil with an IOB value of less than 0.1 does not feel refreshed in terms of feeling of use, and tends to give a sticky feel. On the other hand, an oil with an IOB value exceeding 0.6 tends to dissolve in water. Tend to stop functioning. An organic conceptual diagram is based on methane (CH ₄ ) as the source of all organic compounds, and all other compounds as derivatives of methane. The values are set, and the scores are added to obtain an organic value and an inorganic value, and these values are plotted on a diagram with the organic value on the X axis and the inorganic value on the Y axis. This organic conceptual diagram is shown in “Organic conceptual diagram-basics and application-” (by Yoshio Koda, Sankyo Publishing, 1984) and the like. The IOB value in the organic conceptual diagram refers to the ratio of the inorganic value (IV) to the organic value (OV) in the organic conceptual diagram, that is, “inorganic value (IV) / organic value (OV)”.

  The blending amount of the ester oil is 5.0 to 12.0% by mass, preferably 6.0 to 10.0% by mass with respect to the total amount of the cosmetic from the viewpoints of a refreshing feeling, a penetrating feeling, and a skin familiarity. When the blending amount is less than 5.0% by mass, the effect of the present invention is not sticky, and it is insufficient to feel a penetrating feel, and even when the blending amount exceeds 12.0% by mass. The effect of the present invention is not enhanced, but rather it feels oily.

  The hydrogenated phospholipid as the component (b) preferably has a phosphatidylcholine content of 50% by mass or more. When the content of phosphatidylcholine in the phospholipid is low, there are cases where problems such as lack of moisture retention on the skin and worse odor as cosmetics may occur. Specific examples of the hydrogenated phospholipid having a phosphatidylcholine (hereinafter referred to as PC) content of 50% by mass or more include soybean lecithin, egg yolk lecithin, or a purified product or hydrogenated product thereof. Commercially available products include COATSOME NC-21 (PC content 90% or more, manufactured by NOF Corporation), COATSOME NC-61 (PC content 60% or more, manufactured by NOF Corporation), NIKKOL Resinol S-10E ( PC content 75-85%, manufactured by Nikko Chemicals Co., Ltd., NIKKOL Resinol S-10EX (PC content 95% or more, manufactured by Nikko Chemicals Co., Ltd.), NIKKOL Resinol S-10M (PC content 55-65%, Nikko Chemicals Co., Ltd.), Basis LP-60HR (PC content 62-68%, Nisshin Oilio Co., Ltd.), and the like. In the present invention, one or more of these may be used in appropriate combination.

In the present invention, it is desirable to further contain acidic phospholipids as phospholipids other than those described above. When an acidic phospholipid is blended in the cosmetic according to the present invention, the dispersibility in water when emulsified becomes good.
Examples of the acidic phospholipid include phosphatidylinositol (PI), phosphatidylserine (PS), phosphatidylglycerol (PG), phosphatidic acid (PA), lysophosphatidylinositol, lysophosphatidylserine, and the like. In the present invention, one or more of these can be used in appropriate combination with the hydrogenated phospholipid having a phosphatidylcholine content of (A) of 50% by mass.

  The compounding quantity of the said hydrogenated phospholipid is 0.1-3.0 mass%. When the blending amount is less than 0.1% by mass, the softening effect on the skin by the hydrogenated phospholipid, which is the effect of the present invention, is not sufficiently exhibited, and furthermore, the glycerin stickiness suppressing effect is sufficiently exhibited. Not. On the other hand, even if it exceeds 3.0 mass%, the effect of the present invention is not enhanced.

The component (c) is glyceryl tricaprylate and / or glyceryl tri (caprylic acid / capric acid) and / or glyceryl (caprylic acid / capric acid / coconut oil fatty acid). As the component (c), a commercially available product can be used. Examples of commercially available products of glyceryl tricaprylate include MYRITAL 888 (manufactured by Cognis), Captex 8000 (manufactured by Abitec Corporation), Dub TG8 (manufactured by Sterine Dubois Fils), Estol. 1803 (made by Croda Europe Ltd), Hest TC (made by Global Seven Inc.), etc. are mentioned. Commercially available tri (caprylic acid / capric acid) glyceryl includes O.D. D. O (manufactured by Nisshin Oilio Co., Ltd., caprylic acid: capric acid ratio = 75: 25), TCG-M (manufactured by Higher Alcohol Industry Co., Ltd., caprylic acid: capric acid ratio = 60: 40), MYRITAL 318 (manufactured by Cognis, caprylic acid: capric acid ratio = 70: 30), Crodamol GTCC (manufactured by Croda, caprylic acid: capric acid ratio = 60: 40), MYRITAL 325 (manufactured by Cognis, caprylic acid: Capric acid ratio = 85: 15) and the like. In the present invention, tri (caprylic acid / capric acid) glyceryl is particularly preferable, and the ratio of caprylic acid: capric acid contained in tri (caprylic acid / capric acid) glyceryl is 60-80: 40-20. It is most preferable from the viewpoint of lightness and ease of use during use. (Caprylic acid / capric acid / coconut oil fatty acid) As commercially available products of glyceryl, MYRITOL 331 (manufactured by Cognis), AEC Cocoglycerides (A & E Connock) Perfumery & Cosmetic, Ltd., Dub Cog (Steline Dub) Is mentioned. These components (c) are used alone or in combination of two or more.

  The blending amount of the glyceryl tricaprylate and / or glyceryl tri (caprylic acid / capric acid) and / or (caprylic acid / capric acid / coconut oil fatty acid) is 1.0 to 5.0% by mass. If it is less than 1.0% by mass, the effect of moistening without being sticky, which is the effect of the present invention, is insufficient. On the other hand, even if it exceeds 5.0% by mass, the effect of the present invention is not enhanced. Instead, it becomes oily and sticky when used.

  Although the said (c) component is known as a triglyceride used for cosmetics, component (a) ester oil of IOB value 0.1-0.6 which is an essential component of this invention, component (b) When used with hydrogenated phospholipid and glycerin of component (d), it spreads lightly on the skin, is non-sticky, has a feeling that the active ingredient penetrates the skin (permeability), gives moisture, and moisturizes. In addition, it has not been known that an oil-in-water emulsified skin cosmetic that can exhibit a high skin improvement effect without providing a high amount of glycerin is provided. By combining these components, the feeling of use is synergistically improved, and a high skin improvement effect is exhibited.

  (D) The glycerin as a component will not be specifically limited if it is normally used for cosmetics.

  The compounding quantity of the said glycerin is 3.0-8.0 mass%. Even if the amount is within this range, according to the present invention, the hydrogenated phospholipid of component (b) and the glyceryl tricaprylate and / or tri (caprylic / capric) glyceryl of component (c) and / or (Caprylic acid / capric acid / coconut oil fatty acid) By using glyceryl in combination, the same skin improvement effect as that obtained by blending glycerin in an amount of 10% by mass or more can be obtained.

The hydrophilic surfactant capable of taking an oil-in-water emulsion form as the component (e) is not particularly limited as long as it is usually used in cosmetics. For example, hexaglyceryl monolaurate (HLB14.5), hexaglyceryl monomyristate (HLB11), hexaglyceryl monostearate (HLB9.0), hexaglyceryl monooleate (HLB9.0), decaglyceryl monolaurate (HLB15. 5), Decaglyceryl monomyristate (HLB14.0), Decaglyceryl monostearate (HLB12.0), Decaglyceryl monoisostearate (HLB12.0), Decaglyceryl monooleate (HLB12.0), Decadistearate Polyglycerin fatty acid esters such as glyceryl (HLB9.5) and decaglyceryl diisostearate (HLB10.0). Polyoxyethylene monostearate (hereinafter abbreviated as POE) (5) Glyceryl (HLB9.5), POE (15) monostearate (HLB13.5), POE monooleate (5) glyceryl (HLB9.5) Polyoxyethylene glycerin fatty acid esters such as monooleic acid POE (15) glyceryl (HLB14.5). Mono palm oil fatty acid POE (20) sorbitan (HLB16.9), monopalmitic acid POE (20) sorbitan (HLB15.6), monostearic acid POE (20) sorbitan (HLB14.9), monostearic acid POE (6) sorbitan (HLB9.5), tristearic acid POE (20) sorbitan (HLB10.5), monoisostearic acid POE (20) sorbitan (HLB15.0), monooleic acid POE (20) sorbitan (HLB15.0), monoolein Polyoxyethylene sorbitan fatty acid esters such as acid POE (6) sorbitan (HLB 10.0) and trioleic acid POE (20) sorbitan (HLB 11.0). Monolauric acid POE (6) sorbite (HLB15.5), tetrastearic acid POE (60) sorbitol (HLB13.0), tetraoleic acid POE (30) sorbitol (HLB11.5), tetraoleic acid POE (40) sorbitol ( Polyoxyethylene sorbite fatty acid esters such as HLB 12.5) and tetraoleic acid POE (60) sorbite (HLB14.0). POE (10) lanolin (HLB12.0), POE (20) lanolin (HLB13.0), POE (30) lanolin (HLB15.0), POE (5) lanolin alcohol (HLB12.5), POE (10) lanolin Polyoxyethylene lanolin and lanolin such as alcohol (HLB15.5), POE (20) lanolin alcohol (HLB16.0), POE (40) lanolin alcohol (HLB17.0), POE (20) sorbit beeswax (HLB9.5) Alcohol and beeswax derivatives. POE (20) castor oil (HLB10.5), POE (40) castor oil (HLB12.5), POE (50) castor oil (HLB14.0), POE (60) castor oil (HLB14.0), POE ( 20) hydrogenated castor oil (HLB10.5), POE (30) hydrogenated castor oil (HLB11.0), POE (40) hydrogenated castor oil (HLB13.5), POE (60) hydrogenated castor oil (HLB14.0), Polyoxyethylene castor oil and hydrogenated castor oil such as POE (80) hydrogenated castor oil (HLB16.5) and POE (40) hydrogenated castor oil (100) hydrogenated castor oil (HLB16.5). POE (5) phytosterol (HLB9.5), POE (10) phytosterol (HLB12.5), POE (20) phytosterol (HLB15.5), POE (30) phytosterol (HLB18.0), POE (25) phytostanol Polyoxyethylene sterols and hydrogenated sterols such as (HLB14.5) and POE (30) cholestanol (HLB17.0). POE (2) lauryl ether (HLB9.5), POE (4.2) lauryl ether (HLB11.5), POE (9) lauryl ether (HLB14.5), POE (5.5) cetyl ether (HLB10.5) ), POE (7) cetyl ether (HLB11.5), POE (10) cetyl ether (HLB13.5), POE (15) cetyl ether (HLB15.5), POE (20) cetyl ether (HLB17.0), POE (23) cetyl ether (HLB18.0), POE (4) stearyl ether (HLB9.0), POE (20) stearyl ether (HLB18.0), POE (7) oleyl ether (HLB10.5), POE ( 10) oleyl ether (HLB14.5), POE (15) oleyl ether (H B16.0), POE (20) oleyl ether (HLB17.0), POE (50) oleyl ether (HLB18.0), POE (10) behenyl ether (HLB10.0), POE (20) behenyl ether (HLB16.B). 5), POE (30) behenyl ether (HLB18.0), POE (2) (C12-15) alkyl ether (HLB9.0), POE (4) (C12-15) alkyl ether (HLB10.5), POE (10) (C12-15) alkyl ether (HLB15.5), POE (5) secondary alkyl ether (HLB10.5), POE (7) secondary alkyl ether (HLB12.0), POE (9) alkyl ether (HLB13.5), POE (12) alkyl ether (HLB14.5), etc. Carboxymethyl ethylene alkyl ethers. Polyoxyethylene (hereinafter abbreviated as POE) (1) polyoxypropylene (hereinafter abbreviated as POP) (4) cetyl ether (HLB9.5), POE (10) POP (4) cetyl ether (HLB10.5), POE (20) POP (8) cetyl ether (HLB12.5), POE (20) POP (6) decyl tetradecyl ether (HLB 11.0), POE (30) POP (6) decyl tetradecyl ether (HLB 12.0) ) And other polyoxyethylene polyoxypropylene alkyl ethers. Polyethylene glycol monolaurate (hereinafter abbreviated as PEG) (10) (HLB12.5), PEG monostearate (10) (HLB11.0), PEG monostearate (25) (HLB15.0), PEG monostearate (40) (HLB17.5), PEG monostearate (45) (HLB18.0), PEG monostearate (55) (HLB18.0), PEG monooleate (10) (HLB11.0), distearic acid Polyethylene glycol fatty acid esters such as PEG (HLB16.5) and diisostearic acid PEG (HLB9.5). PEG (8) glyceryl isostearate (HLB10.0), PEG (10) glyceryl isostearate (HLB10.0), PEG (15) glyceryl isostearate (HLB12.0), PEG (20) glyceryl isostearate (HLB13.0) ), PEG (25) glyceryl isostearate (HLB14.0), PEG glyceryl isostearate (30) (HLB15.0), PEG (40) glyceryl isostearate (HLB15.0), PEG (50) glyceryl isostearate (HLB16) .0) and polyoxyethylene glyceryl isostearates such as PEG (60) glyceryl isostearate (HLB16.0).
These components (e) can use 1 type (s) or 2 or more types. In particular, from the viewpoint of stability, when using a surfactant having an HLB of 9.0 to 10.0, it is preferable to use the surfactant in combination with an HLB of 15.0 or more.
Examples of the ionic hydrophilic surfactant include coconut oil fatty acid methyl taurine sodium, lauroyl methyl taurine sodium, myristoyl methyl taurine sodium, palmitoyl methyl taurine sodium, stearoyl methyl sodium and the like.

  In the oil-in-water type emulsified skin cosmetic of the present invention, in addition to the above-mentioned components, other optional additive components that are usually used in external preparations for skin such as cosmetics and pharmaceuticals, as long as the purpose and effect of the present invention are not impaired, , UV absorbers, UV scattering agents, waxes, hydrocarbon oils, fatty acid esters, silicone oils, polyhydric alcohols, water-soluble polymers, higher alcohols, higher fatty acids, drugs, etc. can be appropriately blended as necessary. . However, it is not limited to these examples.

  Examples of ultraviolet absorbers include paraaminobenzoic acid, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), glyceryl mono-2-ethylhexanoyl-diparamethoxycinnamate, trimethoxycinnamate Cinnamic acid UV absorbers such as methylbis (trimethylsiloxane) silylisopentyl acid, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2- (2'-hydroxy-5'-t-octylphenyl) benzo Triazole, 2- (2′-hydroxy-5′-methylphenylbenzotriazole, 4-methoxy-4′-tert-butyldibenzoylmethane, 5- (3,3-dimethyl-2-norbornylidene) -3-pentane- 2-one, bis-ethylhexyloxyphenol-methoxy Enyl-triazine, 2,4,6-tris [4- (2-ethylhexyloxycarbonyl) anilino] 1,3,5-triazine, dimorpholinopyridazinone, 2-ethylhexyl-2-cyano-3,3-diphenyl An acrylate etc. are mentioned.

  Examples of the ultraviolet scattering agent include powders such as fine particle titanium oxide, fine particle zinc oxide, fine particle iron oxide, and fine particle cerium oxide having an average particle diameter of 10 to 100 nm. In addition, silicone treatment such as methyl hydrogen polysiloxane and silane coupling agent; metal soap treatment; ultraviolet treatment hydrophobized by fluorine treatment such as perfluoroalkyl phosphate diethanolamine salt and perfluoroalkyl silane, dextrin fatty acid ester treatment, etc. A scattering agent can also be mix | blended suitably according to a dosage form.

  Examples of the waxes include beeswax, candelilla wax, carnauba wax, lanolin, liquid lanolin, jojoballow and the like.

  Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, polyethylene wax, and Fischer-Tropsch wax.

  Examples of fatty acid esters include cetyl palmitate, cholesteryl stearate, beeswax fatty acid 2-octyldodecyl, and the like.

  Examples of the silicone oil include linear polysiloxanes (for example, dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxanes (for example, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), 3 Silicone resin forming a three-dimensional network structure, silicone rubber having an average molecular weight of 200,000 or more, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.) It is done.

  Examples of the polyhydric alcohol include polyethylene glycol, glycerin, diglycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, 1,2-pentanediol, hexylene glycol and the like.

  Examples of water-soluble polymers include plant polymers (eg, carrageenan, pectin, corn starch, etc.); microbial polymers (eg, xanthan gum, pullulan, sodium hyaluronate, etc.); cellulose polymers (methylcellulose, ethylcellulose, etc.) , Hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, etc.); alginic acid polymer (eg, sodium alginate); vinyl polymer (eg, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); acrylic acid Based polymers (for example, sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.).

  Examples of the higher alcohol include hexyl alcohol, octyl alcohol, cetyl alcohol, stearyl alcohol, ceryl alcohol, behenyl alcohol, triacontyl alcohol, seraalkyl alcohol, and batyl alcohol.

  Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, and behenic acid.

Examples of the drug include salts of L-ascorbic acid and its derivatives, salts of tranexamic acid and its derivatives, salts of alkoxysalicylic acid and its derivatives, salts of glutathione and its derivatives, and more specifically, -Ascorbic acid derivatives include L-ascorbic acid monostearate, L-ascorbic acid monopalmitate, L-ascorbic acid monoalkyl esters such as L-ascorbic acid monooleate; L-ascorbic acid monophosphate, L-ascorbine L-ascorbic acid monoesters such as acid-2-sulfate; L-ascorbic acid dialkyl esters such as L-ascorbic acid distearate, L-ascorbic acid dipalmitate, L-ascorbic acid dioleate; L-ascorbic acid trialkyl esters such as tearate, L-ascorbic acid tripalmitate, L-ascorbic acid trioleate; L-ascorbic acid triesters such as L-ascorbic acid triphosphate; And L-ascorbic acid glucosides such as glucoside. In this invention, it uses suitably in the form of each salt of L-ascorbic acid, L-ascorbic acid phosphate ester, L-ascorbic acid-2-sulfate ester, and L-ascorbic acid 2-glucoside.
Examples of the tranexamic acid derivatives include dimers of tranexamic acid (for example, trans-4- (trans-aminomethylcyclohexanecarbonyl) aminomethylcyclohexanecarboxylic acid, etc.), and esters of tranexamic acid and hydroquinone (for example, 4- (Trans-aminomethylcyclohexanecarboxylic acid 4′-hydroxyphenyl ester, etc.), ester form of tranexamic acid and gentisic acid (for example, 2- (trans-4-aminomethylcyclohexylcarbonyloxy) -5-hydroxybenzoic acid, etc. ), Amides of tranexamic acid (for example, trans-4-aminomethylcyclohexanecarboxylic acid methylamide, trans-4- (p-methoxybenzoyl) aminomethylcyclohexanecarboxylic acid, trans-4-guanidinome) In the present invention, it is preferably used in the form of a salt of tranexamic acid or a salt of tranexamic acid derivative.
Alkoxysalicylic acid is one in which the hydrogen atom at the 3-position, 4-position or 5-position of salicylic acid is substituted with an alkoxy group, and the alkoxy group as the substituent is preferably a methoxy group, an ethoxy group or a propoxy group. , An isopropoxy group, a butoxy group or an isobutoxy group, more preferably a methoxy group or an ethoxy group. Specific examples of compound names include 3-methoxysalicylic acid, 3-ethoxysalicylic acid, 4-methoxysalicylic acid, 4-ethoxysalicylic acid, 4-propoxysalicylic acid, 4-isopropoxysalicylic acid, 4-butoxysalicylic acid, 5-methoxysalicylic acid. , 5-ethoxysalicylic acid, 5-propoxysalicylic acid and the like. In this invention, it uses suitably in the form of each salt of alkoxy salicylic acid and its derivatives (ester etc.).
Although it does not specifically limit as a salt of the said chemical | medical agent, For example, salts, such as ammonium salt and an amino acid salt other than alkali metal salt or alkaline-earth metal salt like sodium salt, potassium salt, calcium salt, are mentioned.
In addition, vitamin A, vitamin A palmitate, vitamin A derivatives such as vitamin A acetate, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ and its derivatives, vitamin B ₁₂ , vitamin B ₁₅ And vitamin B such as its derivatives, vitamin E such as α-tocopherol, β-tocopherol, vitamin E acetate, vitamin D such as vitamin D, vitamin H, pantothenic acid, pantethine; γ-oryzanol, allantoin, glycyrrhizic acid (Salt), saponins such as glycyrrhetinic acid, stearyl glycyrrhetinate, hinokitiol, bisabolol, eucalptone, thymol, inositol, saikosaponin, carrot saponin, hechisaponon, muclodisaponin, panto Various drugs such as tenyl ethyl ether, arbutin, cephalanthin, borage, clara, corn, orange, sage, yarrow, mallow, assembly, thyme, spruce, spruce, birch, horsetail, loofah, maronier, yukinoshita, ougon, arnica, lily, Extracts of plants such as mugwort, peony, aloe, gardenia, cherry leaf, pigments such as β-carotene, and the like can also be blended.

  In addition, lower alcohols such as ethanol; antioxidants such as butylhydroxytoluene, δ-tocopherol and phytin; antiseptics such as benzoic acid, salicylic acid, sorbic acid, paraoxybenzoic acid alkyl esters, phenoxyethanol, hexachlorophene, and ε-polylysine; Examples thereof include organic or inorganic acids such as citric acid, lactic acid and hexametaphosphoric acid, and salts thereof.

  Examples of the oil-in-water emulsified skin cosmetic of the present invention include emulsions such as emulsions, creams, and cosmetics, or cream-like products. The manufacture of these products can be carried out by a conventional method by blending the above-mentioned essential components and the components usually blended into cosmetics.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited thereto. Unless otherwise specified, all the amounts are mass%.

(Usage feeling and moisturizing effect)
About the obtained cream (sample), an actual use test was conducted by a female professional panel (10 persons).
Specifically, after washing the face and before going to bed, apply 0.1 to the left and right cheeks and apply the evaluation (spread to the skin during application, familiarity with the skin during application, and stickiness during application) , The softness of the skin immediately after application, and the moistness of the skin immediately after application), and the softness and moistness of the skin were evaluated the next morning after sleeping in a room kept at 25 ° C.

[Spread on skin during application]
A female panel (10 persons) evaluated the spread on the skin based on the following evaluation criteria.
(Evaluation criteria)
A: All 10 persons judged that the spread was light and smooth.
○: 7 to 9 persons judged that the spread was light and smooth.
(Triangle | delta): Three to six persons judged that the spread was light and smooth.
X: 0 to 2 persons were judged to be light and smooth.

[Familiarity to the skin during application]
Skin familiarity was evaluated based on the following evaluation criteria by a panel dedicated to women (10 persons).
(Evaluation criteria)
(Double-circle): All 10 persons judged that skin familiarity was good.
○: Seven to nine people determined that skin familiarity was good.
(Triangle | delta): Three to six persons determined that skin familiarity was good.
X: 0 to 2 persons determined that skin familiarity was good.

[No stickiness during application]
The non-stickiness at the time of application was evaluated based on the following evaluation criteria by a female professional panel (10 persons).
(Evaluation criteria)
A: All 10 people judged that there was no stickiness.
○: 7 to 9 people judged that there was no stickiness.
Δ: 3 to 6 persons determined that there was no stickiness.
X: 0 to 2 persons determined that there was no stickiness.

[Softness of skin immediately after application and next morning]
A female panel (10 persons) evaluated the softness of the skin immediately after application and the next morning based on the following evaluation criteria.
(Evaluation criteria)
A: All 10 people evaluated that the skin was soft.
○: Seven to nine people evaluated that the skin was soft.
(Triangle | delta): 3-6 persons evaluated that skin was soft.
X: 0-2 persons evaluated that skin was soft.

[Moist skin immediately after application and the next morning]
A female specialist panel (10 persons) evaluated the moistness of the skin immediately after application and the following morning based on the following evaluation criteria.
(Evaluation criteria)
A: All 10 people evaluated it as being moist.
○: Seven to nine people evaluated that they were moist.
(Triangle | delta): 3-6 persons evaluated that it was moist.
X: 0-2 persons evaluated that it was moist.

[Skin immediately after application and the next morning]
The skin panel immediately after application and the next morning was evaluated based on the following evaluation criteria by a female specialist panel (10 persons).
(Evaluation criteria)
(Double-circle): All 10 people evaluated that there was a skin on a skin.
○: Seven to nine people evaluated that there was a skin on the skin.
(Triangle | delta): Three to six people evaluated that there was a skin on a skin.
X: 0-2 persons evaluated that there was a skin on the skin.

(Examples 1-22, Comparative Examples 1-29)
Skin creams, which are oil-in-water emulsified skin cosmetics, were prepared by the following method with the formulations of the components and blending amounts shown in Tables 1 to 5 below. Usability was evaluated using the manufactured sample according to the evaluation method. The results are shown in Tables 1-5.
(Manufacturing method)
The oil phase was uniformly mixed and dissolved at 70 ° C, while the aqueous phase was uniformly mixed and dissolved at 70 ° C. Subsequently, it emulsified with the homomixer, adding 70 degreeC oil phase gradually to the water phase hold | maintained at 70 degreeC. When the emulsification was completed, the emulsion was rapidly cooled to 40 ° C. or lower to obtain a target oil-in-water emulsified skin cream.

＊１：商品名：Ｏ．Ｄ．Ｏ（日清オイリオ株式会社社製）
＊２：商品名：ＭＹＲＩＴＯＬ ３３１（コグニスジャパン株式会社製）
＊３：商品名：ＮＩＫＫＯＬ ＭＹＳ−５５Ｖ（日光ケミカルズ株式会社製）
＊４：商品名：ＮＩＫＫＯＬ ＳＭＴ（日光ケミカルズ株式会社製）
＊５：商品名：ＣＯＡＴＳＯＭＥ ＮＣ−２１（日油株式会社製）
＊６：商品名：ＮＩＫＫＯＬ レシノールＳ−１０Ｅ（日光ケミカルズ株式会社製）
＊７：商品名：ＳＩＭＵＬＧＥＬ ＥＧ（有効分３７．５％，ＳＥＰＩＣ社製） First, Table 1 shows the effects of the component (a) ester oil having an IOB value of 0.1 to 0.6, which is an essential component of the present invention.

* 1: Product name: O.D. D. O (Nisshin Oilio Co., Ltd.)
* 2: Product name: MYRIITOL 331 (manufactured by Cognis Japan)
* 3: Product name: NIKKOL MYS-55V (manufactured by Nikko Chemicals Co., Ltd.)
* 4: Product name: NIKKOL SMT (Nikko Chemicals)
* 5: Product name: COATSOME NC-21 (manufactured by NOF Corporation)
* 6: Product name: NIKKOL Resinol S-10E (manufactured by Nikko Chemicals)
* 7: Product name: SIMULGEL EG (37.5% effective, manufactured by SEPIC)

As is apparent from the results of Table 1, Examples 1 to 10 satisfying the configuration of the present invention are: skin spread, skin conformance, non-stickiness, softness of skin immediately after application, skin immediately after application It can be seen that it exhibits excellent effects on the moistness, the skin elasticity immediately after application, the softness of the next morning skin, the moistness of the next morning skin, and the next morning skin elasticity. That is, although it is sticky, a high skin improvement effect can be seen and the usability is also good even without adding a large amount of 10.0% by mass or more of glycerin, which is known to have a skin improvement effect. It can be seen that
On the other hand, as can be seen from the results in Table 2, in Comparative Examples 1 to 10, the compounding amount of the component (a) is outside the scope of the present invention, so the usability effect is inferior.

＊８：商品名：ＮＩＫＫＯＬ レシノールＳ−１０（ＰＣ含有量２５〜３０％，日光ケミカルズ株式会社製） Next, Table 3 shows the effects of component (b) hydrogenated phospholipid, which is an essential component of the present invention.

* 8: Product name: NIKKOL Resinol S-10 (PC content 25-30%, manufactured by Nikko Chemicals Co., Ltd.)

As can be seen from Table 3, Examples 11 to 16 satisfying the configuration of the present invention have the following characteristics: skin spread, skin familiarity, non-stickiness, soft skin immediately after application, moist skin immediately after application It can be seen that it exhibits excellent effects on the skin peel immediately after application, the softness of the next morning skin, the moistness of the next morning skin, and the next morning skin peel. If it is less than 0.1% by mass, the effect of the component (b) on the softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin of the next morning, and the softness of the skin of the next morning is sufficient. It is not demonstrated. Moreover, it turns out that stickiness is produced when it exceeds 3.0 mass%. Comparative Example 15 using a hydrogenated phospholipid that does not satisfy the PC content of 50% by mass or more, which is an essential component of the present invention, is the softness of the skin immediately after application, the softness of the skin immediately after application, You can see that the skin is soft and the next morning's skin is not moist.
Even from this result, a high skin improvement effect can be seen and the usability is also good even without adding as much as 10.0% by mass of glycerin, which is known to have a skin improvement effect. It turns out that it is obtained.

Next, the effects of component (c) glyceryl tricaprylate and / or tri (caprylic acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl, which are essential constituents of the present invention, are shown. 4 shows.

As can be seen from Table 4, Examples 17 to 22 satisfying the constitution of the present invention are the spread on the skin, the familiarity with the skin, the non-stickiness, the softness of the skin immediately after application, and the moistness of the skin immediately after application. It can be seen that it exhibits excellent effects on the skin peel immediately after application, the softness of the next morning skin, the moistness of the next morning skin, and the next morning skin peel. If it is less than 1.0% by mass, the effect is not sufficiently exerted on the moistness of the skin immediately after application and the skin tone immediately after application. Moreover, it turns out that stickiness is produced when it exceeds 5.0 mass%.
Even from this result, even though it is sticky, glycerin, which is known to have a skin improvement effect, has a high skin improvement effect even if it is not as much as 10.0% by mass or more, and the usability is also high. It turns out that a favorable thing is obtained.

As can be seen from Table 5, Comparative Example 20 lacks an ester oil having a component (a) IOB value of 0.1 to 0.6, which is an essential component of the present invention. It is inferior to familiarity and stickiness. The next morning's skin is insufficient. Since Comparative Example 21 lacks the component (b) hydrogenated phospholipid that is a constituent essential component of the present invention, the softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin the next morning, It is inferior to the moist skin of the next morning. Comparative Example 22 lacks the component (c) glyceryl tricaprylate and / or tri (caprylic acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl which are the essential constituents of the present invention. Therefore, although it is excellent in terms of spreading to the skin, familiarity with the skin, and non-stickiness, it is moistened immediately after application, moisturized skin immediately after application, moisturized skin the next morning, and moistened skin the next morning It is inferior. Although the comparative example 23 is comprised by the essential component (a)-(f) of this invention, the quantity of the glycerol of a component (d) exceeds the range 3.0-8.0 mass% of this invention. Since it is 10% by mass, the softness of the skin immediately after application, the moistness of the skin immediately after application, the moistness of the skin immediately after application, the softness of the skin of the next morning, the moistness of the skin of the next morning, the skin of the next morning Although it is excellent for a beam, it is inferior to the skin, to the skin, and to the skin. Comparative Example 24 lacks component (d) glycerin, which is an essential component of the present invention, and is excellent in spreading on the skin, conforming to the skin, and non-stickiness, but softness of the skin immediately after application, application It is inferior to the moist skin immediately after application, the skin elasticity immediately after application, the softness of the next morning skin, the moistness of the next morning skin, and the next morning skin elasticity. In Comparative Example 25, component (a) ester oil having an IOB value of 0.1 to 0.6, component (b) hydrogenated phospholipid, component (c) glyceryl tricaprylate, and / or essential components of the present invention. Lack of tri (caprylic acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl, spread on skin, fit to skin, non-stickiness, softness of skin immediately after application The next morning's skin is inferior. Since Comparative Example 26 lacks component (a) ester oil having an IOB value of 0.1 to 0.6 and component (b) hydrogenated phospholipid, which are essential components of the present invention, it spreads to the skin, It lacks the familiarity to the skin, the non-stickiness, the softness of the skin immediately after application, and the softness of the skin the next morning. As described above, even if any of the essential constituents of the present invention is absent, the effects of the present invention are the spread on the skin, the familiarity with the skin, the non-stickiness, the softness of the skin immediately after application, and the moistness of the skin immediately after application. It is not possible to satisfy all of the skin elasticity immediately after application, the softness of the next morning skin, the moistness of the next morning skin, and the skin elasticity of the next morning.
In Comparative Examples 27, 28, and 29, the component (a) the ester oil having an IOB value of 0.1 to 0.6 is 5.0 to 12.0% by mass, (c) glyceryl tricaprylate and / or tri (capryl). Acid / capric acid) glyceryl and / or (caprylic acid / capric acid / coconut oil fatty acid) glyceryl in an amount of 1.0 to 5.0% by mass is outside the scope of the present invention. Evaluation is bad.

  Hereinafter, the formulation example of the oil-in-water type emulsified skin cosmetics of this invention is shown.

[Example 23: Whitening cream]
(Mixed component) (mass%)
(1) α-olefin oligomer 2.0
(2) Dimethylpolysiloxane 2 mPa · s 4.0
(3) Isodecyl neopentanoate (IOB = 0.22) 6.0
(4) POE (21) stearyl ether (HLB = 15.5) 2.0
(5) POE (2) stearyl ether (HLB = 4.9) 0.5
(6) Cetyl alcohol 2.5
(7) Batyl alcohol 1.5
(8) Tri (caprylic acid / capric acid) glyceryl 4.0
(Product name: OD, manufactured by Nisshin Oilio Co., Ltd.)
(8) Fragrance 0.1
(9) Ion exchange water Residual (10) Hydrogenated phospholipid 1.5
(Product name: COATSOME NC-61, manufactured by NOF Corporation)
(12) 1,3-butylene glycol 3.0
(13) Glycerin 7.0
(14) Tranexamic acid 2.0
(15) Paraben 3.0
(16) Ethanol 3.0
(17) Sodium hydroxide appropriate amount (18) vinylpyrrolidone / acrylamidomethylpropanesulfone 0.5
Sodium acid copolymer (trade name: ARISTOFLEX AVS, manufactured by CLARIANT)
(19) Citric acid 0.09
(20) Sodium citrate 0.01
(Manufacturing method)
(1) to (8) were uniformly mixed and dissolved at 70 ° C. (oil phase). On the other hand, (9) to (20) were uniformly mixed and dissolved at 70 ° C. (aqueous phase). The mixture was emulsified with a homomixer while gradually adding the oil phase to the aqueous phase maintained at 70 ° C. When the emulsification was completed, the product was rapidly cooled to 40 ° C. or lower to obtain a target whitening cream.
(Product properties)
When the obtained cream was evaluated in the same manner as in Examples 1 to 22, it was excellent in usability (extended to skin, familiar to skin, and non-sticky), and when applied to skin, immediately after application The softness of the skin, the moistness of the skin immediately after application, the elasticity of the skin immediately after application, the softness of the skin of the next morning, the moistness of the skin of the next morning, and the elasticity of the skin of the next morning.

[Example 24: Sunscreen lotion]
(Mixed component) (mass%)
(1) Octyl paramethoxycinnamate 6.0
(2) Diglyceryloctyl diparamethoxycinnamate 2.0
(3) 4-tert-butyl-4'-benzoylmethane 2.0
(4) Tetra (octanoic acid / paramethoxycinnamic acid) pentaerythritol 3.0
(5) Dineopentanoic acid tripropylene glycol (IOB = 0.52) 5.0
(6) Dimethylpolysiloxane 1.5 mPa · s 5.0
(7) Dineopentanoic acid tripropylene glycol (IOB = 0.52) 5.0
(8) Glyceryl tricaprylate 1.0
(Product name: MYRIITOL 888, manufactured by Cognis)
(9) PEG (40) glyceryl (HLB15) isostearate 1.2
(Product name: EMALEX GWIS-140, manufactured by Nippon Emulsion Co., Ltd.)
(10) Ion exchange water Residual (11) Dipropylene glycol 3.0
(12) Glycerin 3.0
(13) Hydrogenated phospholipid 1.0
(Product name: NIKKOL S-10E, manufactured by Nikko Chemicals Co., Ltd.)
(14) Ethanol 3.0
(15) Phenoxyethanol 0.1
(16) Acrylic acid amide / acrylamide aminomethylpropane 1.0
Sodium sulfonate copolymer
(Product name: SEPIGEL 305, Effective: 40%, manufactured by SEPIC)
(17) Fragrance 0.1
(Manufacturing method)
(1) to (9) were uniformly mixed and dissolved at 70 ° C. (oil phase). On the other hand, (10) to (17) were uniformly mixed and dispersed at 70 ° C. (aqueous phase). The mixture was emulsified with a homomixer while gradually adding the oil phase to the aqueous phase maintained at 70 ° C. When the emulsification was completed, it was rapidly cooled to 40 ° C. or lower to obtain the desired sunscreen lotion.
(Product properties)
About the obtained sunscreen lotion, when evaluated in the same manner as in Examples 1 to 22, it was excellent in usability (skin spread, familiar to skin, non-stickiness ◎), and applied to the skin. The softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin the next morning, the softness of the skin of the next morning, and the softness of the skin of the next morning were ◎.

[Example 25: Anti-aging cream]
(Mixed component) (mass%)
(1) Hydrogenated polyisobutene 2.0
(2) Decamethylcyclopentasiloxane 5.0
(3) (Caprylic acid, capric acid, coconut oil fatty acid) Glyceryl 4.0
(Product name: MYRIITOL 331, manufactured by Cognis)
(4) Isotridecyl isononanoate (IOB = 0.16) 7.0
(5) POE (30) behenyl alcohol (HLB18.0) 2.7
(6) Sorbitan trioleate (HLB4.0) 0.3
(7) Myristyl myristate 1.0
(8) Vaseline 0.5
(9) Stearic acid 1.0
(10) Behenic acid 2.0
(11) Fragrance 0.1
(12) Glycerin 8.0
(13) 1,3-butylene glycol 2.0
(14) Hydrogenated phospholipids 2.0
(Product name: NILLOL Resinol S-10E, manufactured by Nikko Chemicals Co., Ltd.)
(15) Carnosine 1.0
(16) Paraben 0.15
(17) Potassium hydroxide appropriate amount (18) Dimethylacrylamide / acrylamidomethylpropane 0.5
Sodium sulfonate copolymer
(Brand name: Polymer G-1, manufactured by Toho Chemical Industry Co., Ltd.)
(19) Citric acid 0.01
(20) Sodium citrate 0.09
(21) Ion exchange water Residue (Production method)
(1) to (11) were uniformly mixed and dissolved at 70 ° C. (oil phase). On the other hand, (12) to (21) were uniformly mixed and dissolved at 70 ° C. (aqueous phase). The mixture was emulsified with a homomixer while gradually adding the oil phase to the aqueous phase maintained at 70 ° C. When the emulsification was completed, it was rapidly cooled to 40 ° C. or lower to obtain the desired anti-aging cream.
(Product properties)
About the obtained anti-aging cream, when the same evaluation as in Examples 1 to 22 was performed, it was excellent in usability (extended to the skin, familiar to the skin, non-sticky ◎), and applied to the skin. The softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin immediately after application, the softness of the skin the next morning, the softness of the skin of the next morning, and the softness of the skin of the next morning were ◎.

[Example 26: Latex]
(Mixed component) (mass%)
(1) Glycerin 7.0
(2) 1,3-butylene glycol 5.0
(3) Hydrogenated phospholipid 1.5
(Product name: COATSOME NC-21, NOF Corporation)
(4) Polyethylene glycol monostearate (100 mol) 0.5
(HLB19.0)
(Product name: SIMULSOL M59, manufactured by SEPIC)
(5) Carboxyvinyl polymer 0.12
(6) (Acrylic acid / alkyl acrylate (C10-30) 0.05
Copolymer
(Product name: PEMULEN TR-2, manufactured by NOVEON)
(7) Xanthan gum 0.01
(8) Cetostearyl alcohol 1.0
(9) Cetyl ethylhexanoate (IOB = 0.13) 10.0
(10) Dimethylpolysiloxane 6 mPa · s 1.5
(11) Tri (caprylic acid / capric acid) glyceryl 4.0
(Product name: TCG-M, manufactured by Higher Alcohol Industry Co., Ltd.)
(12) Isohexadecane 1.0
(13) Sodium hexametaphosphate 0.01
(14) Potassium hydroxide appropriate amount (15) Phenoxyethanol 0.5
(16) Perfume appropriate amount (17) Ion exchange water Residue (Production method)
(4), (8) to (12), (16) were heated to 70 ° C. and mixed uniformly to obtain an oil phase. On the other hand, (1) to (3), (5) to (7), (13), (14), (15) and (17) were uniformly mixed at 70 ° C. to obtain an aqueous phase. The mixture was emulsified with a homomixer while gradually adding the oil phase to the aqueous phase maintained at 70 ° C. When the emulsification was completed, the emulsion was rapidly cooled to 40 ° C. or lower to obtain a desired emulsion.

  According to the present invention, there is provided an oil-in-water emulsified cosmetic that can obtain an excellent skin improvement effect without performing a high blending of glycerin of 10% or more, lightly spreads, does not become sticky, and has an excellent penetration feeling.

Claims (4)

An oil-in-water emulsified skin cosmetic containing the following components (a) to (f).
(A) 5.0 to 12.0% by mass of an ester oil having an IOB value of 0.1 to 0.6
(B) 0.1 to 3.0% by mass of hydrogenated phospholipid
(C) 1.0 to 5.0% by mass of glyceryl tricaprylate and / or glyceryl tri (caprylic acid / capric acid) and / or (caprylic acid / capric acid / coconut oil fatty acid)
(D) 3.0-8.0 mass% of glycerol
(E) hydrophilic surfactant (f) water An ester oil having an IOB value of 0.1 to 0.6 is isopropyl myristate (IOB = 0.18), isodecyl isononanoate (IOB = 0.19), octyldodecyl neopentanoate (IOB = 0.13), neopentane Isostearyl acid (IOB = 0.14), isopropyl palmitate (IOB = 0.16), hexyl laurate (IOB = 0.17),
Hexyldecyl ethylhexanoate (IOB = 0.13), isotridecyl isononanoate (IOB = 0.16), isopropyl isostearate (IOB = 0.15), ethyl isostearate (IOB = 0.15), ethylhexyl palmitate ( IOB = 0.13), octyldodecyl neodecanoate (IOB = 0.11), polyglyceryl-2 tetraisostearate (IOB = 0.17), pentaerythrityl tetraisostearate (IOB = 0.15), isocetyl myristate (IOB = 0.10), trimethylolpropane triisostearate (IOB = 0.16), neopentyl glycol diethylhexanoate (IOB = 0.32), trimethylolpropane triethylhexanoate (IOB = 0.33), Tetraethyl hex Pentaerythrityl acid (IOB = 0.35), diisopropyl adipate (IOB = 0.46), diisostearyl malate (IOB = 0.28), neopentyl glycol dicaprate (IOB = 0.25), Dineopentanoic acid tripropylene glycol (IOB = 0.52), isodecylbenzoate (IOB = 0.23), propylene glycol dicaprylate (IOB = 0.32), isononyl isononanoate (IOB = 0.2), ethylhexyl isononanoate (IOB = 0.2), isodecyl neopentanoate (IOB = 0.22), ethylhexyl ethylhexanoate (IOB = 0.2), cetyl ethylhexanoate (IOB = 0.13), glyceryl triethylhexanoate (IOB = 0.36), diethylhexyl succinate (IOB) Oil-in-water emulsified skin cosmetic according to claim 1, wherein at the selected one or two or more from the group consisting of 0.32).   The oil-in-water emulsified skin cosmetic according to claim 1, wherein the content of phosphatidylcholine contained in the hydrogenated phospholipid is 50% by mass or more.   The oil-in-water emulsified skin cosmetic according to claim 1, wherein the ratio of caprylic acid: capric acid contained in tri (caprylic acid / capric acid) glyceryl is 60-80: 40-20.