CN108697612B

CN108697612B - Emulsified cosmetic

Info

Publication number: CN108697612B
Application number: CN201780012262.1A
Authority: CN
Inventors: 松尾真树; 池田恵
Original assignee: Mandom Corp
Current assignee: Mandom Corp
Priority date: 2016-11-18
Filing date: 2017-09-19
Publication date: 2021-05-07
Anticipated expiration: 2037-09-19
Also published as: JPWO2018092406A1; KR20180100641A; CN108697612A; JP6792632B2; KR102104096B1; WO2018092406A1

Abstract

The present invention relates to an emulsion cosmetic composition containing a component A, a component B, a component C, and a component D, wherein the content of the component A is 0.5 to 4.0% by mass, the total (B + C) of the content of the component B and the content of the component C is 0.5 to 6.0% by mass, and the mass ratio (B/(B + C)) of the content of the component B to the total of the content of the component B and the content of the component C is 0.15 to 0.85; component A: phospholipid, component B: glyceryl monobehenate, component C: glyceryl monostearate, and component D: and (3) water. The emulsified cosmetic of the present invention can be used as a cosmetic such as an emulsion or a cream which can impart a heavy feeling to the skin.

Description

Emulsified cosmetic

Technical Field

The present invention relates to an emulsified cosmetic.

Background

A cosmetic that gives a user a feeling of heaviness (コク feeling) when applied can give the user a certain comfort and can give a high-grade feeling, and therefore can be said to be one of the types of cosmetic that the user pursues. Conventionally, as an emulsion cosmetic for imparting a heavy feeling to the skin, an emulsion cosmetic containing a higher alcohol or polyethylene glycol is known (patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-018724

Disclosure of Invention

Problems to be solved by the invention

However, emulsions containing higher alcohols have a problem of thickening with time. For example, when such an emulsion is used by being filled in a dispensing container or an emulsion bottle (dispensing bottle), discharge from a nozzle may be poor. Therefore, the amount of the higher alcohol to be mixed has to be limited, and it is difficult to impart a sufficiently high feeling of thickness in the present situation. In addition, emulsion cosmetics containing polyethylene glycol have a problem of insufficient feeling in use.

Further, even if an emulsion composition having a heavy feel and sufficient storage stability is found, the emulsion uniformity is lowered, or the storage stability at a low temperature is not only long but also poor at a high temperature, and such a composition is not sufficient as an emulsion cosmetic.

The present invention addresses the problem of providing an emulsion cosmetic that can impart a heavy feel, has excellent emulsion uniformity, and has excellent storage stability at high temperatures.

Means for solving the problems

That is, the present invention relates to an emulsion cosmetic composition comprising the following component A, the following component B, the following component C and the following component D,

the content of the component A is 0.5 to 4.0% by mass, the total (B + C) of the content of the component B and the content of the component C is 0.5 to 6.0% by mass, and the mass ratio (B/(B + C)) of the content of the component B to the total of the content of the component B and the content of the component C is 0.15 to 0.85.

Component A: phospholipids

Component B: glyceryl monobehenate

Component C: glyceryl monostearate

Component D: water (W)

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, an emulsion cosmetic which can impart a heavy feel, has excellent emulsion uniformity, and has excellent storage stability at high temperatures can be provided. The "heavy feeling" refers to the following feeling: the thickness of the coating layer of the formulation can be felt at the time of coating as if a formulation with a high concentration was coated.

Detailed Description

The emulsified cosmetic of the present invention contains at least components a to D.

The present inventors have focused on phospholipids among various ingredients usable in the field of cosmetics, and have found that an emulsified cosmetic emulsified with phospholipids exerts a high heavy feeling to some extent. However, an emulsified cosmetic emulsified with phospholipids may have a reduced emulsion uniformity or a reduced storage stability such as separation at high temperatures. As a result of further studies, it has been found that an emulsified cosmetic composition having improved texture and excellent emulsion uniformity and storage stability at high temperatures can be obtained by using glyceryl monobehenate and glyceryl monostearate in combination at a specific ratio.

Component A is "phospholipid". The component A exerts not only an effect of promoting emulsification but also an effect of giving a heavy feeling.

The component A is a complex lipid containing a phosphoric acid residue, and examples thereof include natural phospholipids, synthetic phospholipids, hydrogenated phospholipids in which unsaturated carbon chains of naturally occurring phospholipids are saturated with hydrogen, and the like. Examples of the phospholipid include natural phospholipids such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, egg yolk lecithin, and soybean lecithin; synthetic phospholipids such as dilauroyl phosphatidylcholine, dimyristoyl phosphatidylcholine, dipalmitoyl phosphatidylcholine, distearoyl phosphatidylcholine, dioleoyl phosphatidylcholine, and palmitoyl oleoyl phosphatidylcholine; hydrogenated phospholipids such as hydrogenated soybean lecithin, hydrogenated yolk lecithin, hydrogenated phosphatidylcholine and hydrogenated phosphatidylserine, and the like. Among these, hydrogenated phospholipids are preferable, and hydrogenated soybean phospholipids are more preferable, from the viewpoint of storage stability at high temperatures. The component A may be used alone or in combination of two or more.

As the component A, commercially available products can be used. Examples of commercially available products of hydrogenated soybean phospholipids include "COATSOME NC-61" (product name, manufactured by Nissan oil Co., Ltd.), "COATSOME NC-21" (product name, manufactured by Nissan oil Co., Ltd.), "NIKKOL Retinol S-10 EX" (product name, manufactured by Nissan chemical Co., Ltd.), "NIKKOL Retinol S-10E" (product name, manufactured by Nissan chemical Co., Ltd.), "NIKKOL LP-20H" (product name, manufactured by Nissin Ollio Group Co., Ltd.), "BASIS LS-60" (product name, manufactured by Nissin Oillio Group Co., Ltd.), and the like.

The content of component a in 100% by mass of the emulsion cosmetic of the present invention is 0.5% by mass or more, preferably 1.0% by mass or more in terms of imparting a heavy feel, and is 4.0% by mass or less, preferably 3.0% by mass or less in terms of storage stability at high temperature and uniformity of emulsion. The content of the component a is the total amount of all the components a contained in the emulsion cosmetic of the present invention.

The component B is glyceryl monobehenate. The component B exerts the following effects: the emulsion cosmetic is provided with a heavy feel when applied, and further, the emulsion cosmetic is provided with storage stability at high temperatures. This is presumably because the components B and C are amphiphilic, and in the emulsion cosmetic, the components a to C interact with each other to give a heavy feel when the emulsion cosmetic is applied. Here, the glyceryl monobehenate of the component B is long in carbon chain length and hardly undergoes structural change at high temperature, and therefore, the bulk viscosity does not increase with time, and as a result, it is presumed to contribute to the provision of a heavy feeling and the storage stability at high temperature. The excellent storage stability at high temperatures means that, for example, an increase in viscosity and phase separation with time are less likely to occur at 40 ℃.

The content of component B in 100% by mass of the emulsion cosmetic of the present invention is preferably 0.2% by mass or more, more preferably 0.5% by mass or more, and still more preferably 0.8% by mass or more, from the viewpoint of imparting a heavy feel and the viewpoint of storage stability at high temperatures; on the other hand, from the viewpoint of storage stability at high temperature, it is preferably 3.5% by mass or less, more preferably 2.0% by mass or less, and still more preferably 1.5% by mass or less.

Component C is "glyceryl monostearate". The component C exerts the following effects: when the emulsion cosmetic is applied, a heavy feeling is imparted, and the uniformity of the emulsion cosmetic is improved. Since the glycerin monostearate as the component C has a short carbon chain length and high surface activity, it is presumed that the effect of improving the uniformity of the emulsion is exerted by orienting the glycerin monostearate at the oil-water interface. The term "homogeneity of the emulsion" means, for example, that coarse aggregates are not generated in the emulsion.

The content of component C in 100% by mass of the emulsion cosmetic of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and still more preferably 0.5% by mass or more, from the viewpoint of providing a heavy feel and from the viewpoint of uniformity of the emulsion; from the viewpoint of preventing the emulsified cosmetic from becoming hard, improving the feeling in use, and improving the storage stability, it is preferably 3.5% by mass or less, more preferably 2.5% by mass or less, and still more preferably 2.0% by mass or less.

The total content (B + C) of the component B and the component C in 100 mass% of the emulsion cosmetic of the present invention is 0.5 mass% or more, preferably 0.8 mass% or more, and more preferably 1.0 mass% or more, from the viewpoint of providing a heavy feel, the uniformity of the emulsion, and the storage stability at high temperature; from the viewpoint of giving a heavy feel and the viewpoint of storage stability at high temperatures, it is 6.0% by mass or less, preferably 4.0% by mass or less, and more preferably 3.0% by mass or less.

The mass ratio (B/(B + C)) of the content of the component B to the total content of the components B and C in the emulsion cosmetic of the present invention is 0.15 or more, preferably 0.3 or more, from the viewpoint of giving a heavy feel, the viewpoint of uniformity of the emulsion, and the viewpoint of storage stability at high temperatures; from the viewpoint of imparting a heavy feel, the viewpoint of uniformity of the emulsion, and the viewpoint of storage stability at high temperatures, it is 0.85 or less, preferably 0.7 or less.

The component D is "water". Ingredient D has the function of acting as a medium for the emulsified cosmetic material forming the emulsifying system. By using the cosmetic in an emulsion system, the water-tendering and skin-moisturizing effects can be exerted.

The content of component D in 100% by mass of the emulsion cosmetic of the present invention is preferably 40.0% by mass or more, more preferably 50.0% by mass or more, and from the viewpoint of containing other components, is preferably 95.0% by mass or less, more preferably 90.0% by mass or less.

The emulsion cosmetic of the present invention preferably further contains "xanthan gum" as the component E, from the viewpoint of thickening the emulsion cosmetic and improving emulsion stability and feeling of use. Further, it is more preferable to use the component E in combination with the component F described later because the effect of giving a heavy feel and storage stability to the emulsified cosmetic and the effect of allowing the emulsified cosmetic to be easily taken out when the emulsified cosmetic is taken out from the container with a finger can be exhibited. Xanthan gum is a chain polysaccharide composed of repeating units of glucose 2 molecule, mannose 2 molecule, and glucuronic acid.

As the component E, commercially available products can be used. Examples of commercially available products of component E include "ECHO GUM T" (manufactured by DSP GOKYO FOOD & CHEMICAL CO., LTD.), "NOMCORT ZZ" (manufactured by Nissin Oillio Group Co., Ltd.).

The content of the component E in 100 mass% of the emulsion cosmetic of the present invention is preferably 0.01 mass% or more, more preferably 0.02 mass% or more, and still more preferably 0.03 mass% or more, from the viewpoint of providing a heavy feel, storage stability, and ease of taking out; from the viewpoint of suppressing the stickiness and the generation of coating residue when applied to the skin, it is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, and still more preferably 0.2% by mass or less.

The emulsified cosmetic of the present invention preferably further contains "a carboxyvinyl polymer and/or an alkyl-modified carboxyvinyl polymer" as the component F, from the viewpoint of thickening the emulsified cosmetic, improving the emulsion stability and the feeling of use. That is, the component F is one or both of a carboxyvinyl polymer and an alkyl-modified carboxyvinyl polymer.

The carboxyvinyl polymer is mainly a polymer of acrylic acid, and the alkyl-modified carboxyvinyl polymer is mainly a copolymer of acrylic acid and an alkyl methacrylate. The component F may be used alone or in combination of two or more.

The carboxyvinyl polymer and the alkyl-modified carboxyvinyl polymer can be easily obtained as commercially available products. Preferred commercially available products of the carboxyvinyl polymer include, for example, "Carbopol 934", "Carbopol 940", "Carbopol 941", "Carbopol 980", "Carbopol 981", "Carbopol 1342", "Carbopol 2984", "Carbopol Ultrez 10" and "Carbopol ETD 2050" (all of the products of Luboemon corporation); "AQUPEC HV-501", "AQUPEC HV-504", "AQUPEC HV-505", "HIVIWAKO 104", and "HIVIWAKO 105" (all manufactured by Wako pure chemical industries, Ltd.), and the like. Preferred examples of the alkyl-modified carboxyvinyl polymer include "PEMULEN TR-1", "PEMULEN TR-2", "Carbopol ETD 2020" and "Carbopol ULTREZ 20" (all manufactured by Loboemon Japan).

The content of the component F in 100 mass% of the emulsion cosmetic of the present invention is preferably 0.05 mass% or more, more preferably 0.06 mass% or more, and still more preferably 0.08 mass% or more, from the viewpoint of improving the storage stability; on the other hand, the amount is 0.3% by mass or less, preferably 0.25% by mass or less, from the viewpoint of the uniformity of the emulsion and the coating feel. The content of the component F is the total amount of all the components F contained in the emulsified cosmetic of the present invention.

The emulsion cosmetic of the present invention contains an oil agent in addition to the components a to F in order to form the agent into an emulsion system. The oil agent is not particularly limited, and examples thereof include branched aliphatic alcohols having a single carbon atom number of 12 to 24, straight unsaturated aliphatic alcohols having a single carbon atom number of 12 to 22, higher fatty acids having a carbon atom number of 12 to 22, oils and fats, hydrocarbon oils, ester oils, silicone oils, waxes, and the like.

Specific examples of the oil agent include: c12-24 monobasic branched aliphatic alcohols such as octyldodecanol, decyltetradecanol, and isostearyl alcohol; a C12-22 monovalent linear unsaturated aliphatic alcohol such as oleyl alcohol; higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid, undecylenic acid, lanolin acid, and isostearic acid; coconut oil, palm oil, hydrogenated palm oil, avocado oil, sesame oil, olive oil, macadamia nut oil, safflower oil, almond oil, corn oil, cottonseed oil, sunflower seed oil, grape seed oil, hazelnut oil, macadamia nut oil, meadowfoam seed oil, rose hip oil and other oils; hydrocarbon oils such as olefin oligomers, light mobile isoparaffins, squalane, liquid paraffin, mobile isoparaffins, and vaseline; ester oils such as ethyl oleate, isopropyl myristate, isopropyl palmitate, myristyl myristate, cetyl palmitate, oleyl oleate, octyldodecyl myristate, octyldodecyl oleate, ethyl isostearate, isopropyl isostearate, cetyl 2-ethylhexanoate, cetylstearyl 2-ethylhexanoate, glyceryl tri-2-ethylhexanoate, glyceryl tri (octanoate/decanoate), glyceryl triisopalmitate, pentaerythritol tetra-2-ethylhexanoate, isocetyl octanoate, isostearyl octanoate, isocetyl isostearate, octyldodecyl isostearate, and propylene glycol isostearate; silicone oils such as dimethyl silicone oil, methyl polysiloxane, high-polymerized methyl polysiloxane, methylphenyl polysiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, methylcyclopolysiloxane, alcohol-modified silicone, alkyl-modified silicone, amino-modified silicone, and epoxy-modified silicone; jojoba oil, beeswax, and the like. The oil agent may be used alone or in combination of two or more.

The content of the oil agent in 100 mass% of the emulsion cosmetic of the present invention is not particularly limited, but is preferably 2.0 mass% or more, more preferably 3.0 mass% or more, from the viewpoint of imparting a skin moisturizing effect. On the other hand, the content is preferably 30.0% by mass or less, more preferably 20.0% by mass or less, from the viewpoint of suppressing stickiness. The content of the oil agent is the total amount of all oil agents contained in the emulsified cosmetic of the present invention.

The emulsified cosmetic composition of the present invention may further contain an emulsifier (simply referred to as "other emulsifier") other than the component a. The other emulsifier is not particularly limited, but is preferably a nonionic emulsifier. The "other emulsifier" may be used alone or in combination of two or more.

Examples of the "other emulsifier" include nonionic emulsifiers such as sorbitan fatty acid esters, glycerin fatty acid esters, castor oil, hydrogenated castor oil, alkylene oxide adducts thereof, polyoxyethylene sorbitan fatty acid esters, polyglycerin fatty acid esters, polyoxyalkylene alkyl ethers, polyoxyalkylene fatty acid esters, polyoxyalkylene alkylphenols, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene alkylphenyl formaldehyde condensates, polyoxyethylene sterols and derivatives thereof, polyoxyethylene lanolin and derivatives thereof, polyoxyethylene beeswax derivatives, and sugar esters; anionic emulsifiers such as higher fatty acid soaps, alkyl sulfate salts, alkyl phosphates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkylphenyl ether sulfates, alkyl ether phosphates, alkyl ether carboxylates, acyl methyltaurates, N-acyl-N-methyl- β -alanates, N-acyl glycinates, N-acyl glutamates, polyoxyethylene alkyl carboxylates, alkylphenyl ether sulfonates, alkylsulfosuccinic acids and salts thereof, N-acyl sarcosines and salts thereof, and polyoxyethylene cocofatty acid monoethanolamide sulfates; and amine salts such as alkylamine salts, fatty amide amine salts, and ester-containing tertiary amine salts, alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, trialkyl quaternary ammonium salts, and benzalkonium quaternary ammonium salts, cyclic quaternary ammonium salts such as alkylpyridinium salts, and cationic emulsifiers such as benzethonium chloride. Among them, nonionic emulsifiers are preferable, and polyoxyethylene hydrogenated castor oil, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and polyglycerin fatty acid ester are preferable.

The content of the "other emulsifier" in 100% by mass of the emulsified cosmetic composition of the present invention is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, preferably 5.0% by mass or less, more preferably 3.0% by mass or less. The nonionic emulsifier preferably satisfies the above range. The content of the "other emulsifier" is the total amount of all the "other emulsifiers" contained in the emulsified cosmetic of the present invention.

The emulsified cosmetic of the present invention may further contain any other components than those described above. The optional components are not particularly limited, and examples thereof include lower alcohols; polyhydric alcohols such as glycerin and 1, 3-butanediol; an ultraviolet absorber; powder; an antioxidant; preservatives such as methyl paraben and phenoxyethanol; a fragrance; a colorant; a chelating agent; a cooling agent; a thickener; vitamins; a neutralizing agent; an amino acid; a pH adjusting agent; a whitening agent; an anti-inflammatory agent; a deodorizing agent; an animal or plant extract; chelating agents such as sodium salts of ethylenediaminetetraacetic acid, and the like. The other components may be used alone or in combination of two or more.

The emulsion cosmetic of the present invention preferably does not substantially contain "a straight-chain saturated aliphatic monohydric alcohol having 12 to 22 carbon atoms". When the linear saturated aliphatic alcohol is contained, the emulsified cosmetic may become hard with time. Here, "substantially free" means that the emulsion cosmetic composition of the present invention contains no or a trace amount of "a linear saturated aliphatic monohydric alcohol having 12 to 22 carbon atoms" in an amount of preferably 0.1% by mass or less (that is, 0 to 0.1% by mass), more preferably 0.05% by mass or less, and still more preferably 0.01% by mass or less, based on 100% by mass of the emulsion cosmetic composition. In particular, when the emulsified cosmetic of the present invention is an emulsion, it is preferable to satisfy the above range.

Specific examples of the "linear saturated aliphatic monohydric alcohol having 12 to 22 carbon atoms" include cetyl alcohol, behenyl alcohol, stearyl alcohol, and cetearyl alcohol. The "straight-chain saturated aliphatic monohydric alcohol having 12 to 22 carbon atoms" may be only one kind or two or more kinds.

In the present invention, it is preferable that the content of the electrolyte in the emulsified cosmetic is smaller because the storage stability is higher. The content of the electrolyte in 100 mass% of the emulsion cosmetic of the present invention is preferably less than 0.3 mass% (that is, 0 mass% or more and less than 0.3 mass%), and more preferably 0.1 mass% or less, from the viewpoint of storage stability. The content of the electrolyte is the total amount of all electrolytes contained in the emulsion cosmetic of the present invention.

The "electrolyte" in the present specification does not contain the above components a to F. Examples of the electrolyte include monovalent metal salts and divalent or higher polyvalent metal salts. The metal salt may be an inorganic salt or an organic salt. Examples of the metal salt include sodium salt, potassium salt, calcium salt, magnesium salt, zinc salt, ammonium salt, and aluminum salt. Specifically, zinc p-phenolsulfonate, sodium chloride, potassium chloride, calcium chloride, magnesium sulfate, alum, sodium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, ammonium chloride, sodium phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium citrate (trisodium citrate), disodium ethylenediaminetetraacetate, potassium aluminum sulfate, and the like can be exemplified. Furthermore, benzalkonium chloride and aluminum chlorohydrate are also included in the electrolyte.

The pH of the emulsified cosmetic of the present invention is not particularly limited, and is, for example, preferably 5.0 to 7.5, more preferably 5.5 to 7.0 at 25 ℃.

The viscosity of the emulsified cosmetic of the present invention is not particularly limited, and for example, the viscosity at 25 ℃ is preferably 500 to 80000 mPas, more preferably 1500 to 25000 mPas. The viscosity measurement was performed with a B-type viscometer using a spindle and a rotation speed suitable for the viscosity. When the viscosity is 500 to 25000mPa · s, the emulsified cosmetic composition of the present invention is in the form of an emulsion.

The formulation of the emulsified cosmetic of the present invention is not particularly limited, and examples thereof include creams, lotions, and the like. Among them, an emulsion is preferable.

The emulsified cosmetic of the present invention is not particularly limited, and examples thereof include skin care cosmetics such as moisturizing cosmetics, whitening cosmetics, acne care cosmetics, and anti-aging cosmetics (for the purpose of, for example, suppressing wrinkles and sagging). The emulsified cosmetic of the present invention is preferably used as a skin cosmetic. The emulsified cosmetic of the present invention may be any of cosmetics, quasi drugs, medicines, and miscellaneous goods, for example.

The part to which the emulsion cosmetic of the present invention is applied is not particularly limited, and examples thereof include a face (for example, forehead, eyes, canthus, cheek, and mouth), an arm, an elbow, a back of the hand, a finger tip, a foot, a knee, a heel, a neck, an underarm, and a back.

Examples of the method for producing the emulsified cosmetic of the present invention include a method of mixing the above-mentioned components and stirring the mixture by a known method, for example, a homomixer.

Examples

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. The blending amount and the content are amounts converted to pure components, and represent "% by mass" unless otherwise specified.

Examples 1 to 12 and comparative examples 1 to 6 (preparation of emulsion cosmetic)

The emulsion cosmetics of examples and comparative examples were prepared as follows according to the compositions described in tables 1 to 3.

As an aqueous phase, component D, component E, component F, potassium hydroxide, concentrated glycerin, 1, 3-butanediol, methylparaben, phenoxyethanol were mixed and heated to 85 ℃. Further, as an oil phase, component a, component B, component C, other emulsifiers, and an oil agent were mixed and heated to 85 ℃. Next, the aqueous phase and the oil phase were mixed, and the mixture was stirred by a homomixer at 6000rpm for 5 minutes to emulsify the mixture, and then cooled to 35 ℃.

The emulsified cosmetic of example 1 had a pH of about 6.5 at 25 ℃ and a viscosity of 4540 mPas at 25 ℃. The emulsified cosmetic compositions of the other examples had a pH of about 6.5 at 25 ℃ and a viscosity of 4710 mPas to 24000 mPas at 25 ℃. The emulsified cosmetic materials of all examples were in the form of an emulsion.

Test example 1: touch feeling of emulsion cosmetic coating (heavy feeling)

The emulsified cosmetic compositions obtained in the examples and comparative examples were applied to the inner side of the forearm by 3 panelists, and the feel at the time of application was compared with an emulsion of the following standard formulation and evaluated in accordance with the following criteria. The results are shown in tables 1 to 3.

< Standard recipe (emulsion) >

Xanthan gum: 0.03% by mass

Carboxyvinyl polymer: 0.2% by mass

POE-20 sorbitan monostearate: 1.0% by mass

Glyceryl monostearate: 0.5% by mass

Glyceryl monobehenate: 1.0% by mass

Potassium hydroxide: 0.1% by mass

Liquid paraffin: 5.0% by mass

Dimethyl silicone oil: 0.5% by mass

Cetyl 2-ethylhexanoate: 2.0% by mass

Glycerol: 5.0% by mass

1, 3-butanediol: 5.0% by mass

Methyl paraben: 0.2% by mass

Phenoxy ethanol: 0.3% by mass

Water: the remaining part

< evaluation criteria for feeling of heaviness >

Excellent: the heavy feel was very excellent compared to the standard formulation.

O (good): a feeling of heaviness is clearly felt compared to the standard formulation.

Δ (available): a feeling of heaviness was slightly felt compared to the standard formulation.

X (bad): no significant difference in body weight was felt compared to the standard formulation.

Test example 2: homogeneity of emulsion of emulsified cosmetic

The emulsified cosmetic materials of the examples and comparative examples were dropped onto a glass slide and covered with a cover glass to prepare evaluation samples. The evaluation sample was observed with an optical microscope (400 magnifications) and evaluated according to the following criteria.

< evaluation criteria for uniformity of emulsion >

Excellent: the emulsion particles were spherical in shape (round observed) and uniform in size.

O (good): the shape of the emulsion particles was spherical (circular was observed), but small deviations in size were observed.

Δ (available): the shape of the emulsion particles was spherical (circular was observed), but large variations in size were observed.

X (bad): the shape of the emulsion particles is not spherical but amorphous.

The results are shown in tables 1 to 3.

Test example 3: storage stability of emulsion cosmetic preparation (storage stability at high temperature)

The emulsified cosmetic materials of examples and comparative examples were stored in a thermostatic bath at 40 ℃ for 28 days. After each of the emulsified cosmetics after storage was left to stand at 25 ℃ for 4 hours, the storage stability at high temperature of each of the emulsified cosmetics was evaluated by the following method. Specifically, the appearance of each emulsified cosmetic was observed. Further, with respect to the emulsified cosmetic in an emulsion state, fluidity was observed; the emulsified cosmetic in the form of cream was observed as it was being taken with a finger. The case where there was no separation and a significant decrease in viscosity was evaluated as good storage stability (. smallcircle.), and the case where there was separation or a significant decrease in viscosity was evaluated as poor storage stability (. times.).

The results are shown in tables 1 to 3.

[ Table 1]

TABLE 1

The values of the respective components are mass%.

[ Table 2]

TABLE 2

The values of the respective components are mass%.

[ Table 3]

TABLE 3

The values of the respective components are mass%.

The details of each component are as follows.

Hydrogenated soybean phospholipids: manufactured by Sun-light chemical, Inc., trade name "Retinol S-10"

POE-20 sorbitan monostearate: manufactured by Huawang corporation and under the trade name "RHEODOL TW-S120V"

Xanthan gum: DSP GOKYO FOOD & CHEMICAL CO., LTD, manufactured under the trade name "ECHO GUM T"

Carboxyvinyl polymer: under the trade name "Carbopol 981" manufactured by Luborun "

Methylpolysiloxane (dimethicone): under the trade name "SH 200C 10 CS-JASU" manufactured by Dow Corning Toray "

Cetyl 2-ethylhexanoate: manufactured by Nihon Surfactant Kogyo, trade name "CIO-N"

Liquid paraffin: sonneborn, under the trade name "cartatinon # 70"

Concentrated glycerin: cosmetic concentrated glycerin

Methyl paraben: manufactured by Shanghai pharmaceutical Co., Ltd., trade name "メッキンス M"

Phenoxy ethanol: manufactured by KOYO fine chemical, trade name "カフレクト PE-1"

The following is evident from tables 1 to 3.

Therefore, the following steps are carried out: examples in which the amount of the component a was in the range of 0.5 to 4.0 mass% were superior to those of comparative examples 1 and 2 in terms of a heavy feeling, uniformity of emulsion, and storage stability at high temperature. Therefore, the following steps are carried out: examples in which the total content (B + C) of the component B and the component C was in the range of 0.5 to 6.0 mass% were superior to those of comparative examples 3 to 6 in terms of a heavy feeling, uniformity of emulsion, and storage stability at high temperature. In comparative example 5, the shape of the emulsion particles was not uniform, and the uniformity of the emulsion was poor. In addition, separation occurs after storage at high temperature, and the storage stability at high temperature is poor. In comparative example 6, although a thick feeling was slightly felt, a dry feeling was generated, and the storage stability at high temperature was remarkably increased.

The following shows formulation examples of the cosmetic of the present invention.

Formulation example 1 (emulsion)

Formulation example 2 (cream)

Industrial applicability

The emulsified cosmetic of the present invention can be used as a cosmetic such as an emulsion or a cream which can impart a heavy feeling to the skin.

Claims

1. An emulsion cosmetic composition comprising the following component A, the following component B, the following component C and the following component D,

the content of the component A is 0.5-4.0% by mass, the total B + C of the content of the component B and the content of the component C is 0.5-6.0% by mass, the mass ratio B/(B + C) of the content of the component B to the total of the content of the component B and the content of the component C is 0.15-0.85,

component A: a phospholipid;

component B: glyceryl monobehenate;

component C: glyceryl monostearate;

component D: and (3) water.

2. The emulsified cosmetic according to claim 1, further comprising the following component E and the following component F,

component E: xanthan gum;

component F: a carboxyvinyl polymer and/or an alkyl-modified carboxyvinyl polymer.

3. The emulsion cosmetic according to claim 1 or 2, which contains substantially no straight-chain saturated aliphatic monohydric alcohol having 12 to 22 carbon atoms.

4. The emulsified cosmetic according to claim 1 or 2, which is a skin cosmetic.

5. The emulsified cosmetic according to claim 1, which is an emulsified cosmetic obtained by emulsifying component A.