JP5923409B2 - Skin cleansing composition - Google Patents

Description

  The present invention relates to a composition for a skin cleanser.

  Traditionally, skin cleansing agents such as shampoos, body soaps, cleansings, and facial cleansing agents not only remove dust and dirt on the skin and hair, but also remove sebum stains such as the scalp, face, and body. Expected to be effective. In order to remove sebum dirt, various surfactants have been used in conventional skin cleansing agents from the viewpoint of solubility with sebum and a feeling of use.

  Specifically, a sebum selective removing agent containing a hydrophilic surfactant and ethanol (see Patent Document 1), an anionic surfactant, an amphoteric surfactant, and a nonionic surfactant are specified. Scalp cleanser containing monohydric alcohol (see Patent Document 2), sebum remover composition containing inorganic salt, nonionic surfactant and cationic surfactant (see Patent Document 3), Gel-like skin cleanser containing hydrophilic polyglycerin fatty acid ester, acrylic polymer and alkylpolyglucoside (see Patent Document 4), specific anionic surface activity having a function of selectively removing sebum squalene Detergent composition (see Patent Document 5) containing at least one agent, specific amphoteric surfactant, nonionic surfactant, anionic surfactant and cationic high content And oil preparation containing skin cleanser composition (see Patent Document 6), skin dirt removing composition containing polyglycerol fatty acid ester having specific physical properties (see Patent Document 7), polyoxyalkylene alkyl ether A hair cleansing composition (see Patent Document 8) containing a sulfate, a betaine-type amphoteric surfactant, a specific cationic polymer, an inorganic salt, and a specific polyglycerin fatty acid ester has been proposed.

  On the other hand, it is known that the composition of sebum components secreted from the skin changes with age. Furthermore, it is said that changes in the sebum component that is secreted affect the “stickiness” and “glare” of the skin and hair. Removal of sebum components secreted from the skin is effective for suppressing such “stickiness” and “glare” peculiar to middle-aged and elderly people. However, none of the skin cleansing agents aimed at removing sebum that has been studied so far can sufficiently satisfy the removal effect on specific sebum components secreted by middle-aged and older people. It was.

JP 2000-34222 A JP 2000-95651 A JP 2000-128757 A JP 2003-73255 A JP 2003-306426 A JP 2004-262838 A JP-A-2005-75797 JP 2008-81415 A

  The present invention has been made in view of the prior art, and provides a composition for a skin cleanser that exhibits an excellent cleaning and removing effect on specific sebum components secreted from middle-aged and older people. Let it be an issue.

  As a result of analyzing the composition of specific sebum components secreted from middle-aged and elderly people, the present applicant prepared an artificial sebum model that is a pseudo-sebum composition, and conducted an evaluation test of sebum removal using the artificial sebum model. Established. The inventors of the present invention conducted a screening test for a component that cleans and removes a specific sebum component secreted from middle-aged and older people using the evaluation test, and as a result, a specific anionic surfactant and a specific nonionic property were obtained. A combination of at least two surfactants found a remarkably excellent removal effect, and the present invention was completed.

That is, the present invention
[1] (A) N-acyl sarcosine salt, (B) polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil and polyisoethylene glyceryl monoisostearate, and (C) water Ri Na contain, (a) a content of the component from 0.1 to 15 mass%, (B) a content of the component 0.2 to 15 wt%, (a) component and (B ) Composition for skin cleanser satisfying (A) :( B) = 4: 1 to 1: 5 ,
[2 ] The skin cleansing composition according to [1 ], further comprising (D) an amphoteric surfactant ,
[3] The mass content ratio of the component (A) and the component (B) to the component (D) satisfies (A) + (B) :( D) = 8: 1 to 5: 1. Skin cleansing composition,
[4] The skin cleansing agent according to [2] or [3], wherein the component (D) comprises an amidopropyl betaine type amphoteric surfactant, an aminoacetic acid betaine type amphoteric surfactant or a sulfobetaine type amphoteric surfactant. The present invention relates to a composition for use .

  The composition for skin cleanser of the present invention exerts an excellent cleaning and removing effect on specific sebum components secreted from middle-aged and older people, and is “sticky” and “greasy” peculiar to middle-aged and older people in skin and hair. The effect of suppressing "

  Moreover, the composition for skin cleansing agents of this invention has the effect that foamability can be provided, without inhibiting the above-mentioned washing | cleaning removal effect by further containing an amphoteric surfactant.

  The composition for skin cleanser of the present invention is at least selected from (A) N-acyl sarcosine salt, (B) polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil and polyoxyethylene glyceryl monoisostearate. 2 types, as well as (C) water.

  Specific examples of the N-acyl sarcosine salt of the component (A) used include N-myristoyl sarcosine sodium, N-lauroyl sarcosine sodium, N-lauroyl sarcosine potassium, N-lauroyl sarcosine triethanolamine, N-palmitoyl sarcosine sodium, N-cocoyl sarcosine sodium (N-coconut oil fatty acid sarcosine sodium), N-cocoyl sarcosine potassium (N-coconut oil fatty acid sarcosine potassium), N-cocoyl sarcosine triethanolamine (N-coconut oil fatty acid sarcosine triethanolamine), etc. It can be illustrated. These (A) components may be used individually by 1 type, and can also be used in combination of 2 or more type as appropriate. As a suitable component (A), N-lauroyl sarcosine sodium, N-lauroyl sarcosine triethanolamine, N-cocoyl sarcosine sodium, from the viewpoint of enhancing the washing and removing effect on the specific sebum component secreted from middle-aged and elderly people, It is preferable to use N-cocoyl sarcosine triethanolamine.

  As the N-acyl sarcosine salt of component (A), a commercially available product can be used as it is. Examples of commercially available N-lauroyl sarcosine sodium include Soypon SLP, SLE (trade names, both manufactured by Kawaken Fine Chemical Co., Ltd.). As a commercial item of N-lauroyl sarcosine triethanolamine, Soypon SLTA (trade name, manufactured by Kawaken Fine Chemical Co., Ltd.) can be exemplified. Examples of commercially available N-cocoyl sarcosine sodium include Soypon SC and SCE (trade names, both manufactured by Kawaken Fine Chemical Co., Ltd.). As a commercial item of N-cocoyl sarcosine triethanolamine, Soypon SCTA (trade name, manufactured by Kawaken Fine Chemical Co., Ltd.) can be exemplified.

  The content of the component (A) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 0.1% by mass or more is preferable in the composition from the viewpoint of exerting a cleaning removal effect. More preferably, it is 0.5 mass% or more. Moreover, from a viewpoint of foaming, 15 mass% or less is preferable, More preferably, it is 12 mass% or less. From these viewpoints, the content of the component (A) is preferably 0.1 to 15% by mass, more preferably 0.5 to 12% by mass.

  The component (B) used is at least two selected from polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, and polyisoethylene glyceryl monoisostearate. In the present invention, by combining at least two types of the component (B) and the component (A) described above, an excellent cleaning and removing effect can be exerted on the specific sebum component secreted from middle-aged and elderly people. Is possible.

  The polyoxyethylene sorbitan fatty acid ester to be used is not particularly limited as long as the desired effect is sufficiently exhibited, but it is preferably an HLB value of 9 to 17 from the viewpoint of exerting a cleaning removal effect. Specific polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan monostearate (6) (HLB value 9.6), polyoxyethylene sorbitan tristearate (20) (HLB value 10.5), triolein Acid polyoxyethylene sorbitan (20) (HLB value 11.0), polyoxyethylene sorbitan monolaurate (6) (HLB value 13.3), polyoxyethylene sorbitan monostearate (20) (HLB value 14.9) And monopalmitic acid polyoxyethylene sorbitan (20) (HLB value 15.6). In addition, the numerical value in a parenthesis represents the addition mole number of ethylene oxide.

  In the present invention, it is more preferable to use polyoxyethylene sorbitan fatty acid esters having an HLB value of 13 to 16 among the above-described polyoxyethylene sorbitan fatty acid esters from the viewpoint of further enhancing the washing and removing effect.

  As the polyoxyethylene sorbitan fatty acid ester, a commercially available product can be used as it is. Specifically, as a commercially available product of polyoxyethylene sorbitan (6) monolaurate, Rheodor TW-L106 (trade name, manufactured by Kao Corporation, HLB value 13.3) can be exemplified. As a commercially available product of polyoxyethylene sorbitan monostearate (20), Rheodor TW-S120V (trade name, manufactured by Kao Corporation, HLB value 14.9) can be exemplified. Examples of commercially available products of polyoxyethylene sorbitan monopalmitate (20) include NIKKOL TP-10EX (trade name, manufactured by Nippon Surfactant Co., Ltd., HLB value 15.6).

  The polyoxyethylene hydrogenated castor oil to be used is not particularly limited as long as the desired effect is sufficiently exhibited, but it is preferably 7 to 17 from the viewpoint of exerting the cleaning removal effect. As specific polyoxyethylene hydrogenated castor oil, polyoxyethylene (10) hydrogenated castor oil (HLB value 7), polyoxyethylene (20) hydrogenated castor oil (HLB value 9), polyoxyethylene (25) hydrogenated castor oil Oil (HLB value 10.7), polyoxyethylene (40) hydrogenated castor oil (HLB value 12.5), polyoxyethylene (50) hydrogenated castor oil (HLB value 13), polyoxyethylene (60) hydrogenated castor oil Examples thereof include (HLB value 14), polyoxyethylene (100) hydrogenated castor oil (HLB value 15), and the like. In addition, the numerical value in a parenthesis represents the addition mole number of ethylene oxide.

  In the present invention, it is more preferable to use polyoxyethylene hydrogenated castor oil having an HLB value of 10 to 15 among the above-described polyoxyethylene hydrogenated castor oils from the viewpoint of further enhancing the washing and removing effect.

  As the polyoxyethylene hydrogenated castor oil, a commercially available product can be used as it is. Specifically, as a commercially available product of polyoxyethylene (25) hydrogenated castor oil, Emanon CH-25 (trade name, manufactured by Kao Corporation, HLB value 10.7) and the like can be exemplified. As a commercial item of polyoxyethylene (40) hydrogenated castor oil, Emanon CH-40 (HLB value 12.5) etc. can be illustrated. Examples of commercial products of polyoxyethylene (50) hydrogenated castor oil include EMALEX HC-50 (trade name, manufactured by Nippon Emulsion Co., Ltd., HLB value 13). Examples of commercial products of polyoxyethylene (100) hydrogenated castor oil include EMALEX HC-100 (trade name, manufactured by Nippon Emulsion Co., Ltd., HLB value 15).

  The polyisoethylene glyceryl monoisostearate used is not particularly limited as long as the desired effect is sufficiently exhibited, but it is preferably an HLB value of 8 to 13 from the viewpoint of exerting a cleaning removal effect. Specific examples of polyoxyethylene glyceryl monoisostearate include polyoxyethylene (6) glyceryl monoisostearate (HLB value 8), polyoxyethylene monoisostearate (8) glyceryl (HLB value 10), polyoxymonoisostearate Examples thereof include ethylene (20) glyceryl (HLB value 13). In addition, the numerical value in a parenthesis represents the addition mole number of ethylene oxide.

  As the polyisoethylene glyceryl monoisostearate, a commercially available product can be used as it is. Specifically, as a commercially available product of polyisoethylene monoisostearate (6) glyceryl, EMALEX GWIS-106 (trade name, manufactured by Nippon Emulsion Co., Ltd., HLB value 8) can be exemplified. Examples of commercially available products of polyoxyethylene (8) glyceryl monoisostearate include EMALEX GWIS-108 (trade name, manufactured by Nippon Emulsion Co., Ltd., HLB value 10). Examples of the commercially available product of polyisoethylene monoisostearate (20) glyceryl include EMALEX GWIS-120 (trade name, manufactured by Nippon Emulsion Co., Ltd., HLB value 13).

  The content of the component (B) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 0.2% by mass or more is preferable in the composition from the viewpoint of exerting a cleaning removal effect. More preferably, it is 1 mass% or more. Moreover, from a viewpoint of maintenance of bubble bulk, 15 mass% or less is preferable, More preferably, it is 12 mass% or less. From these viewpoints, the content of the component (B) is preferably 0.2 to 15% by mass, more preferably 1 to 12% by mass.

  The content of the polyoxyethylene sorbitan fatty acid ester in the component (B) is not particularly limited as long as the desired effect is sufficiently imparted, but is usually 0 in the composition from the viewpoint of exerting a cleaning removal effect. It is preferable that it is 1-12 mass%, More preferably, it is 0.5-10 mass%.

  The content of the polyoxyethylene hydrogenated castor oil in the component (B) is not particularly limited as long as the desired effect is sufficiently imparted, but is usually 0 in the composition from the viewpoint of exerting a cleaning removal effect. It is preferable that it is 1-12 mass%, More preferably, it is 0.5-10 mass%.

  (B) The content of polyisoethylene glyceryl monoisostearate in the component is not particularly limited as long as the desired effect is sufficiently imparted, but usually from the viewpoint of exerting a cleaning removal effect, It is preferable that it is 0.1-12 mass%, More preferably, it is 0.5-10 mass%.

  In addition, in this invention, from a viewpoint of exhibiting the remarkably excellent washing | cleaning removal effect with respect to the specific sebum component secreted from the person of middle-aged and elderly people, content of above-described (A) component and (B) component is used. The content ratio is preferably (A) :( B) = 4: 1 to 1: 5, more preferably 2: 1 to 1: 4.

  The water of component (C) used is not particularly limited as long as it can be used as a cosmetic raw material, but purified water is usually used. Although content of (C) component will not be specifically limited if a desired effect is provided, Usually, 40-99.5 mass% is preferable in a composition from a viewpoint of a feeling of use, More preferably, it is 55. ˜97.5% by mass.

  Furthermore, (D) amphoteric surfactant can be contained in the composition for skin cleansing agents of this invention from a viewpoint of providing foamability. Specific examples of the component (D) include amidopropyl betaine-type amphoteric surfactants, aminoacetic acid betaine-type amphoteric surfactants, imidazolinium-type amphoteric surfactants, sulfobetaine-type amphoteric surfactants, and sodium propionate-type amphoteric surfactants. Surfactant etc. can be illustrated. These (D) components may be used alone or in a suitable combination of two or more.

  Among the components (D), amidopropyl betaine type amphoteric surfactant, aminoacetic acid betaine type amphoteric surfactant and sulfobetaine type from the viewpoint of imparting foaming properties without inhibiting the washing and removing effect. It is preferable to use an amphoteric surfactant.

  Suitable amidopropyl betaine-type amphoteric surfactants include palm oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, myristic amidopropyl betaine, ricinoleic acid amidopropyl betaine, lauric acid amidopropyl hydroxy Examples include sulfobetaine, palm kernel oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine sodium, amidopropyldimethylamine oxide laurate, and the like.

  Suitable aminoacetic acid betaine-type amphoteric surfactants include lauryl dimethylaminoacetic acid betaine, coconut oil alkyldimethylaminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, stearyl dihydroxyethyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxy. Ethyl imidazolinium betaine, sodium undecylhydroxyethyl imidazolinium betaine, N-coconut oil fatty acid acyl-N′-carboxyethyl-N′-hydroxyethylethylenediamine sodium (coconut oil alkylcarboxyethyl hydroxyethyl imidazolinium betaine sodium) And sodium laurylaminodipropionate.

  Suitable sulfobetaine-type amphoteric surfactants include lauric acid amidopropyl hydroxysulfobetaine, lauryl hydroxysulfobetaine, coconut oil fatty acid hydroxysulfobetaine, myristic acid amidopropyl hydroxysulfobetaine, oleamidopropyl hydroxysulfobetaine, lauryl sulfobetaine And cocosulfobetaine, cocamidopropylhydroxysultain and the like.

  The content of the component (D) is not particularly limited as long as the desired effect is sufficiently imparted, but usually 0.03% by mass or more is preferable in the composition from the viewpoint of foamability, and more preferable. Is 0.1% by mass or more. Moreover, from a viewpoint of a sebum cleaning effect, 8 mass% or less is preferable, More preferably, it is 4 mass% or less. From these viewpoints, the content of the component (D) is preferably 0.03 to 8% by mass, more preferably 0.1 to 4% by mass.

  In the present invention, the above-described (A) component, (B) component, and (D) component, from the viewpoint of exerting a remarkably excellent washing and removing effect on the specific sebum component secreted from middle-aged and elderly people, The content ratio of (A) + (B) :( D) = 10: 1 to 3: 1 is preferably satisfied, and more preferably 8: 1 to 5: 1. It is a range.

  In the composition for skin cleanser of the present invention, within the range not impairing the effects of the present invention, in addition to the above-described components, components commonly used in cosmetics, for example, O- [2-hydroxy-3-chloride] (Trimethylammonio) propyl] hydroxyethylcellulose, O- [2-hydroxy-3- (trimethylammonio) propyl] guar gum, acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer, dimethyldiallylammonium chloride / acrylic acid co Polymers, cationic polymers such as polydimethylmethylenepiperidinium chloride; anionic polymers such as carboxyvinyl polymer and acrylic acid / alkyl methacrylate copolymer; silicones such as dimethylpolysiloxane and polyether-modified silicone; olive oil and camellia Oil, ma Liquid oils such as demia nut oil and orange oil; solid oils such as stearic acid, myristic acid and lauric acid; coconut oil fatty acid diethanolamide, lauric acid diethanolamide, polyoxyethylene coconut oil fatty acid monoethanolamide, coconut oil fatty acid monoethanolamide Alkyl alkanolamides such as coconut oil fatty acid N-methylethanolamide; polyhydric alcohols such as 1,3-butylene glycol, glycerin, propylene glycol, polyethylene glycol and polyoxypropylene glyceryl ether; sugar alcohols such as sorbitol and maltitol; Preservatives, antioxidants, ultraviolet absorbers, plant extracts, pearlizing agents, powders, pH adjusters, fragrances and the like can be appropriately blended depending on the purpose.

  The skin cleansing composition of the present invention can be produced by a conventional method, and can be applied to various dosage forms such as liquid, emulsion, cream, and gel. Moreover, it can use suitably as a scalp washing | cleaning agent, a shampoo, a face-washing agent, a cleansing agent, a body shampoo, a hand soap etc. as a usage form. Among these, from the viewpoint of suppressing “stickiness” and “glare” peculiar to middle-aged and elderly people, it is more preferable to use them as scalp cleaning agents, shampoos, facial cleansing agents and cleansing agents.

  Thus, the composition for skin cleansing agents obtained can exhibit the outstanding washing | cleaning removal effect with respect to the specific sebum component secreted from the middle-aged person by satisfying the structure of above-described this invention.

  In this specification, “middle-aged and elderly” refers to those 35 years and older. The middle-aged group is preferably 40 to 59 years old.

  In the present specification, the specific sebum component secreted from middle-aged and elderly people contains triglyceride and fatty acid, and the mass ratio of triglyceride to fatty acid (triglyceride / fatty acid) is 0.57 / 1 or more. It is characterized by being.

  Sebum components secreted from middle-aged and older people tend to have higher triglyceride content and less fatty acid content compared to sebum components secreted from people in their 20s There are features.

  Examples of the triglyceride include triglycerides having an acyl group having 7 to 26 carbon atoms. Specifically, it is a mixture containing tristearin, tripalmitin, trimyristin and triolein.

  The content of tristearin in the mixture is 1 to 13% by mass, the content of tripalmitin in the mixture is 19 to 44% by mass, and the content of trimyristin in the mixture is 9 to 52% by mass. The content of triolein in the mixture is 20 to 56% by mass.

  Examples of the fatty acid include saturated fatty acids having 7 to 26 carbon atoms or unsaturated fatty acids. Specifically, it is a mixture containing myristic acid, palmitic acid, stearic acid, and oleic acid.

  The content of myristic acid in the mixture is 9 to 52% by mass, the content of palmitic acid in the mixture is 19 to 44% by mass, and the content of stearic acid in the mixture is 1 to 13% by mass. The content of oleic acid in the mixture is 20 to 56% by mass.

  The mass ratio of triglyceride to fatty acid (triglyceride / fatty acid) is 0.57 / 1 or more, preferably 0.68 / 1 or more, more preferably 0.81 / 1 or more. In addition, it is preferable that the upper limit of the mass ratio of the said triglyceride and a fatty acid is 50/1 or less.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by mass” unless otherwise specified.

(Preparation of artificial sebum model)
In the present invention, liquid paraffin, squalane, wax ester, triglyceride, fatty acid, cholesterol, and ceramide are used in order to faithfully reproduce the washing and removal of the specific sebum components secreted by middle-aged and older people. An artificial sebum model having a triglyceride / fatty acid (mass ratio) of 0.81 / 1 was prepared so as to have the composition shown in Table 1.

  As the liquid paraffin, trade name: KAYDOL (manufactured by Sonneborn Inc.) was used. As the squalane, trade name: squalane (manufactured by Wako Pure Chemical Industries, Ltd.) was used. Examples of the wax ester include hexadecyl palmitate (trade name: hexadecyl palmitate, manufactured by Wako Pure Chemical Industries, Ltd.), myristyl myristate (trade name: Exepal MY-M, manufactured by Kao Corporation), and oleyl oleate (trade name: A mixture with CETIOL (manufactured by Cognis Japan) (hexadecyl palmitate: myristyl myristate: oleyl oleate (mass ratio) = 7: 2: 5) was used. Examples of the triglycerides include tristearin (trade name: Tristearin, manufactured by Nacalai Tesque), tripalmitin (trade name: tripalmitine, manufactured by Wako Pure Chemical Industries), and trimyristin (trade name: trimyristin, Wako Pure Chemicals). Kogyo Co., Ltd.) and triolein (trade name: Triolein, manufactured by Wako Pure Chemical Industries, Ltd.) (Tristearin: Tripalmitin: Trimyristin: Triolein (mass ratio) = 1: 8: 3: 9) Was used. As the fatty acid, myristic acid (trade name: myristic acid, manufactured by Nacalai Tesque), palmitic acid (trade name: palmitic acid, manufactured by Nacalai Tesque), and stearic acid (trade name: stearic acid, Wako Pure Chemical Industries, Ltd.) And a mixture of oleic acid (trade name: oleic acid, manufactured by Wako Pure Chemical Industries, Ltd.) (myristic acid: palmitic acid: stearic acid: oleic acid (mass ratio) = 4: 10: 2: 10) It was. As the cholesterol, trade name: cholesterol (manufactured by Wako Pure Chemical Industries, Ltd.) was used. As the ceramide, Ceramide 2 (trade name: Ceramide TIC-001, manufactured by Takasago International Corporation) was used.

(Sample preparation)
According to the composition described in Tables 2-6, each composition for skin cleansing agents of Examples 1-18 and Comparative Examples 1-12 was prepared, and it used for the following evaluation. The results are also shown in Tables 2-6. In addition, all evaluation was implemented on the constant conditions of constant temperature and humidity of 23 degreeC and 60% of humidity. Further, “POE” in the table is an abbreviation for “polyoxyethylene”, and the numerical value in parentheses represents the number of added moles of ethylene oxide.

(Test Example 1: Evaluation of cleaning removal effect)
Each sample of the example and the comparative example was dissolved in purified water so that the concentration was 7% by mass to obtain an aqueous solution for washing test.

  The artificial sebum model shown in Table 1 was liquefied by heating to 60 ° C., and 0.25 g of the artificial sebum model was uniformly applied to a keratin cloth (20 mm × 20 mm). The keratin cloth after application of the artificial sebum model was allowed to stand at 35 ° C. for 12 hours or more.

Next, the prepared keratin cloth after application of the artificial sebum model was immersed in a container containing 100 mL of the aqueous solution for cleaning test previously maintained at 45 ° C. The keratin cloth after application of the artificial sebum model was washed by shaking the container for 60 minutes under the conditions of a vibration frequency of 60 cm ⁻¹ and an amplitude of 15 mm.

  The artificial sebum model remaining on the washed keratin cloth was extracted with chloroform. The obtained extract was subjected to gas chromatography with a flame ionization detector (GC-FID) under the following analysis conditions, and peaks corresponding to components (fatty acid, squalene, wax ester or triglyceride) contained in the artificial sebum model were measured. The area (hereinafter referred to as “area A”) was determined.

  Further, except that the artificial sebum model attached to the keratin cloth before washing was used instead of the artificial sebum model remaining on the washed keratin cloth, the same operation as described above was performed, and the peak area corresponding to the component (Hereinafter referred to as “area B”).

<Analysis conditions>
Apparatus: Agilent 6890N (manufactured by Agilent Technologies)
Column: Ultra ALLOY UA-DX30 (manufactured by Frontier Laboratories)
Carrier gas: Helium inlet temperature: 360 ° C
Column temperature: 40 ° C. to 20 ° C./min and held at 400 ° C. for 12 minutes Column flow rate: 2 mL / min Detector: Flame ionization detector (FID)
Detector temperature: 250 ° C
Injection volume: 2 μL

  Next, the residual rate of the lipid [(area A / area B) × 100] (%) was calculated from the obtained analysis result. Based on the calculation result of the residual rate, it evaluated according to the following evaluation criteria.

<Evaluation criteria for cleaning removal>
◎: The residual ratio of lipid in the keratin cloth after washing is 0% or more and less than 40% ○: The residual ratio of lipid in the keratin cloth after washing is 40% or more and less than 60% △: The lipid remaining in the keratin cloth after washing Residual rate is 60% or more and less than 90% x: The residual rate of lipid in the keratin cloth after washing is 90% or more

  From the results shown in Tables 2 to 6, the compositions for the skin cleanser of the present invention described in Examples 1 to 12 are excellent in cleaning and removing the specific sebum components secreted from middle-aged and elderly people. It can be seen that In other words, it can be said that the composition for skin cleanser of the present invention suppresses “stickiness” and “glare” peculiar to middle-aged and elderly people. Moreover, it turns out that the composition for skin cleansing agents which further contains the amphoteric surfactant described in Examples 13-18 has provided foaming property, without inhibiting the washing | cleaning removal effect.

  On the other hand, in the compositions for skin cleansing agents described in Comparative Examples 1 to 12 in which the essential components of the present invention are replaced with other components, since they are inferior in cleaning and removing the sebum components, It can be said that the “sticky” and “glitter” cannot be sufficiently suppressed.

  Hereinafter, the formulation example of the composition for skin cleansing agents which concerns on this invention is shown. In addition, content is mass%. POE is an abbreviation for polyoxyethylene, and the numerical value in parentheses represents the number of added moles of ethylene oxide.

(Formulation Example 1: Scalp cleanser)
N-lauroyl sarcosine sodium 2.0
Monoisostearic acid POE (20) sorbitan 2.0
Polyoxyethylene (100) hydrogenated castor oil 2.0
Amidopropyl betaine laurate 1.0
Diglycerin 1.0
1,3-butylene glycol 10.0
Ethanol 5.0
l-Menthol 0.5
Acrylic acid / alkyl methacrylate copolymer 0.4
pH adjuster (triethanolamine) Amount to make pH 6.0
Purified water balance part Total 100.0

(Formulation Example 2: Scalp cleanser)
N-lauroyl sarcosine sodium 2.0
Monoisostearic acid POE (8) glyceryl 2.5
Polyoxyethylene (100) hydrogenated castor oil 1.5
POE glyceryl ether (9) 3.0
Dipropylene glycol 10.0
Ethanol 7.0
l-Menthol 0.3
Acrylic acid / alkyl methacrylate copolymer 0.2
pH adjuster (triethanolamine) Amount to make pH 6.0
Purified water balance part Total 100.0

(Prescription Example 3: Shampoo)
N-cocoyl sarcosine triethanolamine 10.0
Polyoxyethylene (50) hydrogenated castor oil 1.5
Monoisostearic acid POE (20) glyceryl 3.5
Amidopropyl betaine laurate 1.5
Palm oil fatty acid diethanolamide 3.0
Lauryldimethylaminoacetic acid betaine 1.5
Sorbitol 1.0
1,3-butylene glycol 0.5
l-Menthol 1.0
O- [2-hydroxy-3- (trimethylammonio) propyl] chloride
Hydroxyethyl cellulose 0.3
Polydimethylmethylenepiperidinium chloride solution 0.1
Ethylene glycol distearate 1.0
pH adjuster (citric acid) Amount to make pH 5.8
Purified water balance part Total 100.0

(Prescription Example 4: Face Wash)
Lauric acid 6.5
Myristic acid 13.0
Stearic acid 12.5
Glycerin 10.0
Propylene glycol 9.0
Polyethylene glycol 1500 8.0
N-lauroyl sarcosine sodium 0.5
Polyoxyethylene sorbitan monolaurate (6) 1.5
Monoisostearic acid POE (8) glyceryl 0.5
Lauric acid amidopropyl betaine 0.4
pH adjuster (potassium hydroxide) Amount to make pH 9.5
Purified water balance part Total 100.0

(Formulation example 5: cleansing agent)
N-cocoyl sarcosine sodium 3.0
Monoisostearic acid POE (6) glyceryl 1.0
Mono palmitate polyoxyethylene sorbitan (20) 0.5
Lauric acid amidopropyl betaine 0.6
Glycerin 5.0
POE (7) Palm oil fatty acid glyceryl 5.0
pH adjuster (potassium hydroxide) Amount to make pH 6.0
Purified water balance part Total 100.0

Claims (4)

(A) N-acyl sarcosine salt, (B) polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil and polyisoethylene glyceryl monoisostearate, and (C) water Do Te Ri,
(A) Content of component is 0.1-15 mass%, Content of (B) component is 0.2-15 mass%, Mass content ratio of (A) component and (B) component Is a composition for skin cleanser satisfying (A) :( B) = 4: 1 to 1: 5 . The composition for skin cleanser according to claim 1, further comprising (D) an amphoteric surfactant. The skin cleansing agent according to claim 2, wherein the mass content ratio of the component (A) and the component (B) to the component (D) satisfies (A) + (B) :( D) = 8: 1 to 5: 1. Composition. The composition for a skin cleanser according to claim 2 or 3, wherein the component (D) comprises an amidopropyl betaine-type amphoteric surfactant, an aminoacetic acid betaine-type amphoteric surfactant, or a sulfobetaine-type amphoteric surfactant.