JP2019059677A - Foamy skin cleanser - Google Patents

Abstract

To provide a foamy skin cleanser which suppresses skin tight feeling after cleansing and precipitation of a higher fatty acid while containing a higher fatty acid and/or a salt thereof.SOLUTION: There is provided a foamy skin cleanser obtained by filling an aerosol container with a stock solution and a propellant, wherein the stock solution contains the following components A, B, C and D, a component A: a higher fatty acid and/or a salt thereof, a component B: a fatty acid ester oil which is liquid at room temperature, a component C: water and a component D: a polyethyleneglycol fatty acid ester type nonionic surfactant.SELECTED DRAWING: None

Description

  The present invention relates to foam skin cleansers.

  Among the skin cleansing agents such as face wash and hand soap, foam skin cleansing agents that form bubbles by discharging from pump-type or aerosol-type former containers are known as ones that can be easily foamed during use. (For example, patent documents 1-3). In these foam skin cleansing agents, properties such as ease of foaming (foaming power), foam quality, and foam persistence (foam retention) are emphasized. As the foam, for example, a dense and creamy foam having a fine foam formed at a high density is required.

JP 2012-102194 A JP 2007-131585 A Unexamined-Japanese-Patent No. 2012-240985

  A detergent containing a higher fatty acid salt as a main surfactant component as in Patent Document 1 has high foaming power and is excellent in foam quality. However, for example, in the case of using as a face wash, the skin may feel firm after washing. In addition, in the case of using it in an aerosol type former container, there is a possibility that the higher fatty acid salt may be precipitated to cause discharge failure, so it is necessary to take measures to suppress the precipitation. On the other hand, detergents that do not contain higher fatty acid salts, such as Patent Documents 2 and 3, may be inferior in terms of foaming power and fineness of foam.

  An object of the present invention is to provide a foamy skin cleanser which contains a higher fatty acid and / or a salt thereof and suppresses the feeling of skin firmness after washing and the precipitation of higher fatty acid.

The present invention is a foam-like skin cleansing agent in which an undiluted solution and a propellant are filled in an aerosol container, and the undiluted solution contains the following component A, component B, component C, and component D. It relates to a foam skin cleanser.
Component A: Higher fatty acid and / or salt thereof Component B: Fatty acid ester oil component liquid at room temperature Component C: Water component D: Polyethylene glycol fatty acid ester type nonionic surfactant

  According to the present invention, it is possible to provide a foamy skin cleanser which suppresses the feeling of skin firmness after washing and the precipitation of higher fatty acids while containing higher fatty acids and / or salts thereof.

  The foam skin cleanser of the present invention is one in which an undiluted solution and a propellant are filled in an aerosol container. The foamy skin cleanser of the present invention forms a foam during use, i.e. when discharged from the aerosol container and / or after adhering to a subject. Hereinafter, each component of the foam-like skin cleanser of the present invention will be described.

  The above stock solution contains component A: higher fatty acid and / or a salt thereof, component B: fatty acid ester oil liquid at room temperature, component C: water, and component D: polyethylene glycol fatty acid ester type nonionic surfactant as essential components contains.

  It is preferable that the said undiluted | stock solution further contains component E: polyhydric alcohol, component F: thickening compound etc. in addition to the said essential component. Moreover, you may further contain components (other components) other than component AF. The components A to F and the other components may be used alone or in combination of two or more.

  Component A is a higher fatty acid and / or a salt thereof, that is, one or both of a higher fatty acid and a higher fatty acid salt. The component A acts as a cleansing component to enhance the detergency of the foamy skin cleansing agent, and is effective for improving the foamability and latheriness of the foamy skin cleansing agent. Furthermore, it is effective to form a dense foam having a high foam density. The said component A may use only 1 type, and may use 2 or more types.

  Examples of the higher fatty acids include higher fatty acids having 12 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid and behenic acid; vegetable oils and fats such as olive oil, coconut oil, palm oil and cottonseed oil And animal fats and oils such as fish oil and beef tallow. Among them, higher fatty acids having 12 to 22 carbon atoms are preferable, and lauric acid, myristic acid, palmitic acid and stearic acid are more preferable, from the viewpoints of detergency, foamability and foaminess of foam skin cleansing agents.

  Examples of salts of the above-mentioned higher fatty acid salts include alkali metal salts such as sodium salt and potassium salt; and alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

  The higher fatty acid salt may be blended with the higher fatty acid salt previously prepared to be a salt, or the higher fatty acid and the base may form a salt in a stock solution.

  The content of component A in 100% by mass of the stock solution is preferably 0.1 to 10.0% by mass, more preferably 0.5 to 8.0% by mass, and still more preferably 1.0 to It is 5.0 mass%. When the content is 0.1% by mass or more, the foam resistance is further improved, which is preferable. Moreover, since the clogging of the aerosol by precipitation of the component A is further suppressed because the said content is 10.0 mass% or less, it is preferable. The said content is a total amount of content (The content when converted as a higher fatty acid) of all the components A contained in a undiluted | stock solution.

  Component B is a fatty acid ester oil which is liquid at room temperature. In the present specification, fatty acid ester oil which is liquid at room temperature is one having a viscosity (B-type viscometer: VISCOMETER TV-25 (manufactured by Toki Sangyo Co., Ltd.)) of 100 mPa · s or less at 25 ° C. Point to It has been newly found that Component B has the effect of suppressing precipitation of Component A, in addition to suppressing the feeling of skin firmness after washing. The said component B may use only 1 type, and may use 2 or more types.

  As said component B, for example, ester oil of linear fatty acid and branched lower alcohol, ester oil of linear fatty acid and linear higher alcohol, ester oil of linear fatty acid and branched higher alcohol, branched fatty acid and linear Examples thereof include components selected from ester oils with higher alcohols, ester oils with branched fatty acids and branched higher alcohols, ester oils with fatty acids and polyhydric alcohols, and ester oils with dibasic acids.

  Examples of the ester oil of the linear fatty acid and the branched lower alcohol include isopropyl myristate, isopropyl palmitate, and isopropyl linoleate.

  Examples of the ester oil of linear fatty acid and linear higher alcohol include cetyl caprylate, hexyl laurate, decyl myristate, decyl oleate, and oleyl oleate.

  Examples of ester oils of linear fatty acids and branched higher alcohols include isostearyl laurate, isotridecyl myristate, 2-hexyldecyl myristate, isostearyl myristate, octyldodecyl myristate, 2-ethylhexyl palmitate, palmitin Isocetyl acid, isostearyl palmitate, 2-ethylhexyl stearate, isocetyl stearate, isodecyl oleate, octyldodecyl oleate, octyldodecyl linoleate and the like.

  Examples of the ester oil of the branched fatty acid and the linear higher alcohol include cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, and hexyl isostearate.

  Examples of ester oils of the above branched fatty acids and branched higher alcohols include 2-hexyldecyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, octyldodecyl dimethyl octanoate, 2-ethylhexyl isopalmitate, and isocetyl isostearate And isostearic acid isostearyl, octyldodecyl isostearate, and isononyl isononanoate, and the like.

  Examples of ester oils of fatty acids and polyhydric alcohols include ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol di (caprylic capric acid), propylene glycol dicaprate, propylene glycol dicaprate, and neopentyl glycol dicaprate. , Neopentyl glycol dioctanoate, glyceryl tri 2-ethylhexanoate, glyceryl tri (caprylic caprate), glyceryl triisostearate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tetra 2-ethyl ester Examples thereof include pentaerythritol hexanoate and pentaerythritol tetraisostearate.

  Examples of the ester oil of the dibasic acid include diisopropyl adipate, diisobutyl adipate, dioctyl adipate, diisopropyl sebacate, dioctyl sebacate and the like.

  In the present invention, among the components B, from the viewpoint of suppressing the feeling of skin firmness after washing and further suppressing the precipitation of the component A, an ester oil of a linear fatty acid and a branched lower alcohol, a linear fatty acid and It is preferable to use a component selected from ester oils with branched higher alcohols, ester oils with branched fatty acids and linear higher alcohols, ester oils with branched fatty acids and branched higher alcohols, and ester oils with dibasic acids, myristic acid It is more preferable to use a component selected from isopropyl, octyldodecyl myristate, 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, isononyl isononanoate, diisobutyl adipate, and diisopropyl adipate.

  The content of component B in 100% by mass of the stock solution is preferably 0.1 to 5.0% by mass, more preferably 0.3 to 4.0% by mass, and still more preferably 0.5 to 0.5% by mass. It is 3.0 mass%. When the said content is 0.1 mass% or more, in order to suppress the pinch feeling of the skin after washing | cleaning and also to suppress precipitation of the component A, it is preferable. Moreover, since the said content is 5.0 mass% or less, in order to maintain foaminess, it is preferable. The above content is the total amount of the content of all the components B contained in the stock solution.

  In addition to the component B, the stock solution may optionally further contain a fatty acid ester oil which is solid at room temperature. In the present specification, fatty acid ester oil which is solid at room temperature means that 50 g of fatty acid ester oil is placed in a 70 mL mayonnaise bottle at 25 ° C., and this container is inclined at 45 ° for 30 seconds. It does not run down, it is a thing from the paste to the solid state. The fatty acid ester oil which is solid at room temperature has the effect of suppressing the firmness of the skin after washing and forming a fine, firm and dense foam of texture. One type of fatty acid ester oil which is solid at room temperature may be used, or two or more types may be used.

  Examples of fatty acid ester oils that are solid at room temperature include hexa (hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl, tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl, hexahydroxystearate dipentaerythrityl, and the like.

  The content of the fatty acid ester oil which is solid at room temperature in 100% by mass of the stock solution is preferably 0.01 to 4.0% by mass, more preferably 0.05 to 3.5% by mass, and further Preferably it is 0.1-3.0 mass%. When the content is 0.01% by mass or more, it is preferable in order to suppress the feeling of firmness of the skin after washing and to form a fine, firm and dense foam of texture. Moreover, since the sticky feeling after washing | cleaning can be suppressed by the said content being 4.0 mass% or less, it is preferable. The above content is the total content of all room temperature solid fatty acid ester oils contained in the stock solution.

  The water of Component C is not particularly limited as long as it can be used as a cosmetic raw material, but in general, purified water is preferably used.

  The content of the component C in 100% by mass of the stock solution is preferably 60.0% by mass or more, more preferably 70.0% by mass or more, from the viewpoint of preventing solidification of the discharged matter, and liquefaction of the discharged matter From the viewpoint of preventing, 98.0 mass% or less is preferable, and 90.0 mass% or less is more preferable.

  Component D is a polyethylene glycol fatty acid ester type nonionic surfactant. The component D can more effectively suppress the precipitation of the component A. In addition, it forms a dense foam with a high foam density, and exhibits the effect of improving the foam resistance of the foam. The said component D may use only 1 type, and may use 2 or more types.

  As said component D, the component chosen from polyethyleneglycol fatty acid monoester and polyethyleneglycol fatty acid diester is mentioned, for example.

  Examples of the polyethylene glycol fatty acid monoester include polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, and polyethylene glycol monooleate.

  Examples of the polyethylene glycol fatty acid diester include polyethylene glycol dilaurate, polyethylene glycol distearate, polyethylene glycol diisostearate, and polyethylene glycol dioleate.

  The fatty acid in the component D is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, and still more preferably a carbon number, from the viewpoint of more effectively suppressing precipitation of the component A. Is 12 to 18 fatty acids.

  The average addition mole number of ethylene oxide in the component D is preferably 10 to 300, more preferably 12 to 250, from the viewpoint of more effectively suppressing the precipitation of the component A.

  In the present invention, among the above component D, it is preferable to use a component selected from polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate, and polyethylene glycol diisostearate.

  The content of Component D in 100% by mass of the stock solution is preferably 0.01 to 5.0% by mass, more preferably 0.05 to 4%, from the viewpoint of more effectively suppressing precipitation of Component A. It is 0.1 mass%, more preferably 0.1 to 2.0 mass%. The above content is the total amount of the content of all the components D contained in the stock solution.

  In addition to the above component D, the stock solution may optionally further contain a nonionic surfactant such as a sorbitan fatty acid ester type nonionic surfactant. For example, sorbitan fatty acid ester type nonionic surfactants are effective for the formation of firm and dense bubbles. Nonionic surfactants other than component D may use only 1 type, and may use 2 or more types.

  Examples of the sorbitan fatty acid ester type nonionic surfactant include a component selected from sorbitan fatty acid ester and ethylene oxide condensate of sorbitan fatty acid ester.

  Examples of sorbitan fatty acid esters include sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monoisostearate, sorbitan monooleate, sorbitan coconut oil fatty acid, sorbitan sesquistearate, sorbitan sesquiisostearate, sesquiolein Sorbitan acid, sorbitan distearate, sorbitan tristearate, sorbitan trioleate and the like can be mentioned.

  Examples of the ethylene oxide condensates of sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan monoisostearate, and polyoxyoleate monooleate. Examples thereof include ethylene sorbitan, coconut oil fatty acid polyoxyethylene sorbitan, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate.

  The fatty acid in the sorbitan fatty acid ester type nonionic surfactant is preferably a fatty acid having 8 to 24 carbon atoms, more preferably 10 carbon atoms, from the viewpoint of exerting firm and dense foam formation more effectively. 20 to 20 fatty acids, more preferably fatty acids having 12 to 18 carbon atoms.

  The average addition mole number of ethylene oxide when the sorbitan fatty acid ester type nonionic surfactant is an ethylene oxide condensate is preferably 5 to 5 from the viewpoint of exerting firm and dense foam formation more effectively. 200, more preferably 6-150.

  In the present invention, among the above sorbitan fatty acid ester type nonionic surfactants, sorbitan monopalmitate, coconut oil fatty acid sorbitan, poly monopalmitate from the viewpoint of exerting firm and dense foam formation more effectively. It is preferable to use a component selected from oxyethylene sorbitan, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan tristearate, and polyoxyethylene sorbitan trioleate, and coconut oil fatty acid sorbitan It is more preferable to use a component selected from polyoxyethylene sorbitan monostearate and monostearate.

  When a sorbitan fatty acid ester type nonionic surfactant is used as a nonionic surfactant other than the component D, the content of the sorbitan fatty acid ester type nonionic surfactant in 100% by mass of the stock solution is From the viewpoint of forming a thick foam, preferably 0.05 to 5.0% by mass, more preferably 0.1 to 4.0% by mass, and still more preferably 0.1 to 3.0 It is mass%. The above content is the total content of the contents of all sorbitan fatty acid ester type nonionic surfactants contained in the stock solution.

  The stock solution preferably further contains a polyhydric alcohol of component E. Component E can more effectively suppress precipitation of component A. The said component E may use only 1 type, and may use 2 or more types.

  As the component E, for example, sugar alcohols such as sorbitol, maltitol, glucosyltrehalose, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, isoprene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol (1 (1, 3-butanediol), 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, glycerin (1,2,3-butanediol) Propane triol), diglycerin, polyglycerin, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, etc., from the viewpoint of alleviating the feeling of skin firmness after washing, and from the viewpoint of making the foam retention good Preferably comprises a sugar alcohol.

  The content of component E in 100% by mass of the stock solution is preferably 0.5 to 20.0% by mass, and more preferably 1.0 to 15%, from the viewpoint of more effectively suppressing precipitation of component A. It is 0.1 mass%, More preferably, it is 1.0-10.0 mass%. The content is the total of the content of all the components E contained in the stock solution.

  The stock solution further contains a thickening compound selected from component F1: xanthan gum and guar gum; and a component F such as a thickening compound selected from component F2: hydroxypropyl methylcellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose: thickening compound Is preferred.

  The thickening compound of component F has the effect of improving the foam resistance. Although the said component F may use only 1 type and may use 2 or more types, it is preferable to use the component F1 and the component F2 together.

  The content of the component F1 in 100% by mass of the stock solution is preferably 0.01 to 0.5% by mass, more preferably 0.03 to 0.4% by mass from the viewpoint of improving the foam resistance. It is more preferably 0.05 to 0.3% by mass. The said content is a total amount of content of all the components F1 contained in a undiluted | stock solution.

  The content of the component F2 in 100% by mass of the stock solution is preferably 0.01 to 0.5% by mass, more preferably 0.02 to 0.4% by mass from the viewpoint of improving the foam resistance. It is more preferably 0.03 to 0.2% by mass. The said content is a total amount of content of all the components F2 contained in a undiluted | stock solution.

  The stock solution is not particularly limited, but may contain components other than the components A to F (other components). For example, perfumes; silicone oils such as cyclopentasiloxane, hydrogen dimethicone, caprylyl methicone, methylphenylpolysiloxane, dimethicone, etc. preservatives such as phenoxyethanol, octoxyglycerin, methyl paraben, etc. menthol, menthyl glyceryl ether, camphor, peppermint oil etc. Cooling agent; Anti-inflammatory agent such as dipotassium glycyrrhizinate and stearyl glycyrrhizinate; Extract of plant extract such as peony, peony, loquat and aloe; Bactericide such as isopropylmethylphenol and triclosan; Antioxidant such as tocopherol and dibutyl hydroxytoluene Octyl methoxycinnamate, dimethoxybenzylidene dioxoimidazolidine octyl propionate, hexyl diethyl aminohydroxy benzoylbenzoate, -UV absorbers such as butyl methoxy dibenzoylmethane, octyl triazone, 2-ethylhexyl paramethoxycinnamate; chelating agents such as edetate; whitening agents such as arbutin and ascorbic acid; silica, talc, nylon powder, etc. It may contain powder or the like.

  Examples of the propellant include known propellants, for example, gases such as air, nitrogen and nitrous oxide (especially compressed gas); liquefied petroleum gas (LPG: liquefied petroleum gas), dimethyl ether (DME: dimethyl ether) And liquefied gases such as isopentane and fluorocarbon. The propellant may be used alone or in combination of two or more.

  As an aerosol container, a well-known and usual container is mentioned, It does not specifically limit.

  In the aerosol container, the content of the propellant in the total amount of 100% by mass of the undiluted solution and the propellant is preferably 2.0 to 20.0% by mass from the viewpoint of preventing the liquefaction of the discharge. Preferably, it is 3.0-15.0 mass%. When two or more types of propellants are used, the "propellant content" means the total amount of individual components constituting the propellant.

  The foamy skin cleanser of the present invention can be produced by known methods. For example, it is possible to exemplify a manufacturing method in which an undiluted solution is filled in an aerosol container, the container is clinched by an aerosol valve, and then a specified amount of propellant is filled from the stem into the container and the injection button is attached.

  The foam skin cleanser of the present invention is a skin cleanser used to clean skin such as face. The foam skin cleanser of the present invention includes a cleanser, hand soap, body soap, scalp cleanser and the like. The foam skin cleanser according to the present invention suppresses the feeling of skin firmness after washing and the precipitation of higher fatty acids, and therefore is particularly suitable for use as a cleanser for delicate areas such as face cleansers.

  Hereinafter, the present invention will be described in more detail based on examples and the like, but the present invention is not limited to such examples.

Examples 1 to 20 and Comparative Examples 1 to 2
After filling 95 parts by mass of the undiluted solution having the composition described in Tables 1 to 4 into an aerosol container (φ 35 mm × 105 mm, aluminum can, container full filling amount: 91 ml) and clinching the aerosol valve into the container, it is liquefied as a propellant 5 parts by mass of petroleum gas (LPG) was filled from the stem and equipped with a suitable spout to obtain a foamy skin cleanser. The total amount of the undiluted solution and the propellant charged in the aerosol container is 50 g.

  The detail of each raw material in an Example and a comparative example is as follows. In addition, the quantity as described in Tables 1-4 represents "mass%" unless it mentions specially, It is not the quantity of goods but the quantity (amount of an active ingredient) of each component.

Myristic acid: EDENOR C14-99 (manufactured by Emery Oleochemicals)
Palmitic acid: EDENOR C14-99 (manufactured by Emery Oleochemicals)
Isopropyl myristate: Excepearl IPM (manufactured by Kao Corporation)
Isononyl isononanoate: Saracos 99 (manufactured by Nisshin Oillio Group, Inc.)
2-ethylhexyl palmitate: KOYO POC (manufactured by Kyosho Fine Chemical Co., Ltd.)
Cetyl 2-ethylhexanoate: Saracos 816 T (manufactured by Nisshin Oillio Group, Inc.)
Octyl dodecyl myristate: Excepearl OD-M (manufactured by Kao Corporation)
Polyethylene glycol monostearate: Emanol 3199 VB (manufactured by Kao Corporation: average number of moles of ethylene oxide added: 150)
Polyethylene glycol monoisostearate: EMALEX PEIS-12EX (manufactured by Nippon Emulsion Co., Ltd .: average addition mole number of ethylene oxide: 12)
Polyethylene glycol distearate: Emamino 3299 RV (Kao Co., Ltd .: average added mole number of ethylene oxide 250)
Polyethylene glycol diisostearate: EMALEX 6000 di-ISEX (manufactured by Nippon Emulsion Co., Ltd .: average addition mole number of ethylene oxide: 12)
Dipropylene glycol: Dipropylene glycol DPG-FC (manufactured by Asahi Glass Co., Ltd.)
Polyethylene glycol: PEG-1500 (manufactured by Sanyo Chemical Industries, Ltd .: number average molecular weight 1500)
Sorbitol: Sorbit L-70 (made by Mitsubishi Corporation Foodtech)
Xanthan gum: Echo gum T (made by DSP Gokyo Food & Chemical Co.)
Guar Gum: Supergel CSA 200/50 (manufactured by Sanyo Co., Ltd.)
Hydroxypropyl cellulose: HPC-H (manufactured by Nippon Soda Co., Ltd.)
Hydroxypropyl methylcellulose: Metrose 60SH-4000 (Shin-Etsu Chemical Co., Ltd.)
Hydroxyethyl cellulose: HEC CF-W (manufactured by Sumitomo Seika Chemicals Co., Ltd.)
Triethanolamine: TEA-99 (manufactured by Japan Chemtech)
Coconut oil fatty acid sorbitan: Reodor Super SP-L10 (manufactured by Kao Corporation)
Polyoxyethylene sorbitan monostearate: Reodol TW-S 120 V (manufactured by Kao Corporation: average added mole number of ethylene oxide: 20)
Hexa (hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl: Cosmall 168 ARV (manufactured by Nisshin Oillio Group, Inc.)

[Precipitate suppression of higher fatty acids]
The undiluted | stock solution and propellant which were obtained by each Example and each comparative example were filled with the transparent pressure | voltage resistant bottle, and were stored in the thermostat at 2 degreeC conditions. The state of the stock solution after one week was visually observed to evaluate the presence or absence of precipitation. The results are shown in Tables 1 to 4.
○ (Good): Precipitation of crystals or gel-like substance not observed in the stock solution Δ (Insufficient): Not enough to affect clogging, Precipitation of gel-like substance was confirmed × (Defective): Blocking Crystal deposits of the size and amount expected to cause concern were identified

[Washing power]
A commercially available liquid foundation is spread about 3 cm in diameter on a white uneven surface made of urethane, and the foam of the foam skin cleansing agent of each example and each comparative example is discharged for 0.5 seconds, and a palm for 20 seconds. The foam was rubbed so as to spread in a circular shape, and the degree of soiling after being rinsed with warm water at 40 ° C. was visually evaluated. In addition, visual evaluation was contrasted with the thing of the makeup stain state which was washed away with warm water. The results are shown in Tables 1 to 4.
((Very good): Completely soiled condition ((good): Almost soiled condition, but slightly soiled condition not enough Δ (Insufficient): Slightly soiled condition confirmed However, the condition in which the contamination is almost left x (defective): the condition in which the contamination is completely left (about the same as the condition just flowed with warm water)

  The foam-like skin cleanser foam of each example and each comparative example was discharged onto a Kim towel (quadruple type: Nippon Paper Cress Co., Ltd.) for 1 second in a dome shape. Then, from the distance of 20 cm away from the top end of the dome-shaped foam, 2 push the purified water filled in the pump container (spray discharge amount: 0.5 mL / 1 push), spray the whole foam, and after 30 seconds The surface of the foam was lightly pressed with a fingertip, and the sensory evaluation was performed on "foam elasticity" and "foam quality (density of foam)" according to the following 1 to 4 evaluation points. In addition, evaluation was performed by 10 evaluation panels, and the result of the evaluation point (score) obtained most by the number of people was made into the result of each sample. The results are shown in Tables 1 to 4.

[Foam elasticity]
((4 points: very good): The bubbles do not easily collapse at the fingertips, and a strong elasticity such as pushing back the fingertips is felt ○ (Evaluation points 3: good): The bubbles do not easily collapse at the fingertips, Feel the elasticity like pushing back the finger ((Evaluation point 2: Insufficient): Feel some elasticity like pushing back the finger, but the bubble collapses at the finger x (Evaluation point 1: Poor): Easily with the finger tip Bubble collapses and does not feel elasticity like pushing back the finger at all

[Bubbling]
The foam-like skin cleanser foam of each example and each comparative example was discharged onto a Kim towel (quadruple type: Nippon Paper Cress Co., Ltd.) for 1 second in a dome shape. Then, from the distance of 20 cm away from the top end of the dome-shaped foam, 2 push the purified water filled in the pump container (spray discharge amount: 0.5 mL / 1 push), spray the whole foam, and after 30 seconds Visual confirmation was carried out on the “foam shape” and “fineness of the foam”, and the “foam glutiness” was evaluated according to the following 1 to 4 evaluation points. In addition, evaluation was performed by 10 evaluation panels, and the result of the evaluation point (score) obtained most by the number of people was made into the result of each sample. The results are shown in Tables 1 to 4.
((Evaluation point 4: very good): The foam shape immediately after discharge is maintained, and the texture of the foam surface is fine ○ (Evaluation point 3: good): The foam surface texture is slightly rough, but discharge The foam shape immediately after is maintained △ (Evaluation point 2: Insufficient): Large air bubbles are observed on the foam surface, and the foam shape immediately after discharge is slightly broken x (Evaluation point 1: Poor): Immediately after discharge The foam shape is clearly collapsed

[Skin condition after washing (not feeling tight)]
After having the face washed away with warm water at 40 ° C, the face-washing operation is actually performed using the foam skin cleansing agent of each example and each comparative example, and bubbles are applied to the cheek to draw a circle. It was spread and washed again with warm water at 40 ° C., and the feel after towel drying (feeling of remaining skin) was evaluated sensoryally, and scored according to the following 1 to 4 points. In addition, evaluation was performed by 10 evaluation panels, and the result of the evaluation point (score) obtained most by the number of people was made into the result of each sample. The results are shown in Tables 1 to 4.
((Score 4: very good): very moist residual feeling ((score 3: good): moist moist residual feeling 評 価 (score 2: insufficient): moist remaining Less feeling, high feeling of tightness x (score 1: poor): There is no feeling of moist and left feeling at all, feeling of tightness is very high

  From Tables 1 to 4, the foamy skin cleansers of Examples 1 to 20 containing Component A, Component B, Component C, and Component D have suppression of precipitation of higher fatty acids, detergency, foam elasticity, foam retention, cleansing It was excellent about any of the skin condition (the lack of a feeling of tension) after. On the other hand, in the foam-like skin cleansing agent of Comparative Example 1 not containing Component B or Comparative Example 2 not containing Component D, precipitation of higher fatty acids was observed.

  Hereinafter, formulation examples of the foamy skin cleanser according to the present invention will be shown. In addition, a compounding quantity is "mass%."

Prescription example 1:
(Stock solution)
Myristic acid 2.00
Palmitic acid 1.00
Stearic acid 1.00
Triethanolamine 2.90
1,3 butylene glycol 2.00
Polyethylene glycol 2.00
Xanthan gum 0.15
Hydroxypropyl methylcellulose 0.05
Diisopropyl adipate * 1 1.00
Hexa (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl
1.00
Coconut oil fatty acid sorbitan 1.00
Polyoxyethylene (20) sorbitan monostearate 1.50
Polyethylene glycol monostearate 1.00
Sorbitol 2.00
Refined water Total 100.00

(Propellant)
Liquefied petroleum gas (LPG) 100.00
100.00 in total

Undiluted solution 95.00
Propellant 5.00
100.00 in total
* 1) Diisopropyl adipate: Matte Lube DIA (manufactured by Seiwa Kasei)

Prescription example 2:
(Stock solution)
Myristic acid 3.00
Triethanolamine 2.35
Dipropylene glycol 4.00
Concentrated glycerin 1.00
Xanthan gum 0.15
Hydroxypropyl cellulose 0.10
Diisobutyl adipate * 2 1.00
Tetra (hydroxystearic acid / isostearic acid) dipentaerythrityl
1.00
Coconut oil fatty acid sorbitan 1.00
Polyoxyethylene (20) sorbitan monostearate 0.75
Polyethylene glycol distearate 0.50
Sorbitol 2.00
Refined water Total 100.00

(Propellant)
Liquefied petroleum gas (LPG) 100.00
100.00 in total

Undiluted solution 96.00
Propellant 4.00
100.00 in total
* 2) Diisobutyl adipate: Matte Lube DIBA (made by Seiwa Kasei)

Prescription example 3:
(Stock solution)
Myristic acid 3.00
Palmitic acid 1.00
Triethanolamine 3.05
Dipropylene glycol 4.00
Xanthan gum 0.15
Hydroxyethyl cellulose 0.10
Isopropyl myristate 1.00
Hexahydroxystearate dipentaerythrityl 1.00
Coconut oil fatty acid sorbitan 0.50
Polyoxyethylene (20) sorbitan monostearate 0.50
Polyethylene glycol diisostearate 0.50
Maltitol ※ 3 2.00
Refined water Total 100.00

(Propellant)
Liquefied petroleum gas (LPG) 100.00
100.00 in total

Undiluted solution 94.00
Propellant 6.00
100.00 in total
* 3) Maltitol: LYCASIN 75/77 (manufactured by ROQUETTE)

  The foamy skin cleanser of the present invention can be used as a cleanser for face, hands, body, scalp and hair.

Claims (8)

An undiluted solution and a propellant are foamy skin cleansing agents filled in an aerosol container, and the undiluted solution contains the following ingredient A, ingredient B, ingredient C, and ingredient D. Foamy skin cleansing characterized by the above-mentioned Fee.
Component A: Higher fatty acid and / or salt thereof Component B: Fatty acid ester oil component liquid at room temperature Component C: Water component D: Polyethylene glycol fatty acid ester type nonionic surfactant   Component B is an ester oil of a linear fatty acid and a branched lower alcohol, an ester oil of a linear fatty acid and a branched higher alcohol, an ester oil of a branched fatty acid and a linear higher alcohol, an ester of a branched fatty acid and a branched higher alcohol The foamy skin cleanser according to claim 1, comprising a component selected from an oil and an ester oil of a dibasic acid.   The component B is characterized in that it contains a component selected from isopropyl myristate, octyldodecyl myristate, ethylhexyl palmitate, cetyl ethylhexanoate, isononyl isononanoate, diisobutyl adipate, and diisopropyl adipate. Or the foamy skin cleanser as described in 2.   The component D is characterized in that it comprises a component selected from polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate, polyethylene glycol diisostearate, and polyethylene glycol laurate. The foam skin cleanser according to any one of the preceding claims. The foamy skin cleanser according to any one of claims 1 to 4, wherein the stock solution further comprises the following component E:
Ingredient E: Polyhydric alcohol   The foamy skin cleanser according to claim 5, wherein the component E comprises a sugar alcohol. The foamy skin cleanser according to any one of claims 1 to 6, wherein the stock solution further comprises the following component F:
Component F: Thickening compound The foamy skin cleanser according to claim 7, wherein the component F comprises the following component F1 and / or the following component F2.
Component F1: Thickening compound selected from xanthan gum and guar gum Component F2: Thickening compound selected from hydroxypropyl methylcellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose