KR20190100295A - Foam Skin Cleanser - Google Patents

Abstract

The present invention is a foam skin cleansing agent used in an aerosol-type foamer container, and has a foaming skin cleansing agent that is excellent in foaming power, can form dense and creamy foam, and also has excellent persistence (foam retention) of the foam. to provide. The foam skin cleanser of the present invention is a foam skin cleanser filled with an aerosol container containing a stock solution and a propellant, wherein the stock solution contains component A: N-acylamino acid, component B: polyglycerol fatty acid ester, and component C: monoglycerine. Fatty acid ester, component D: xanthan gum and / or cellulosic thickener, component E: polyhydric alcohol and component F: water.

Description

Foam Skin Cleanser

The present invention relates to an aerosol type foam skin cleanser.

Background Art Conventionally, among the skin cleansing agents such as face wash and hand soap, foams can be easily foamed at the time of use, and foam-like skin cleansing agents that discharge bubbles from a pump type or aerosol type foamer containers to form bubbles are known. For example, patent documents 1-3). In these foam-like skin cleansing agents, characteristics such as ease of foaming (foaming force), foaming, and sustainability of foam (foam retention) are emphasized. As the foam, for example, a dense and creamy foam having a high density of fine bubbles is required.

JP 2012-102194 A Japanese Patent Application Laid-Open No. 2007-131585 Japanese Patent Application Laid-Open No. 2012-240985

The cleaning agent containing the higher fatty acid salt as a main surfactant component like the said patent document 1 has high foaming power, and is excellent also in foaming. However, for example, when used as a face wash or the like, irritation to the eyes may occur or the skin may feel dry after washing. Moreover, when using in an aerosol type former container, since there exists a possibility that a higher fatty acid salt may precipitate, it is necessary to implement the countermeasure which suppresses precipitation. On the other hand, the cleaning material which does not contain a higher fatty acid salt like patent documents 2 and 3 may be inferior in the point of foaming power and the fineness of foam. In particular, when used in the presence of water such as a bath, there is a case where foam retention is insufficient, so that dense and creamy foam cannot be sufficiently sustained.

Accordingly, an object of the present invention is a foam-like skin cleansing agent used in an aerosol-type foamer container, which is excellent in foaming ability, can form dense and creamy foam, and also has excellent sustainability (bubble retention) of the foam. It is to provide a skin cleansing agent.

The foam skin cleanser of the present invention is a foam skin cleanser filled with an aerosol container containing a stock solution and a propellant, wherein the stock solution contains the following component A, the following component B, the following component C, the following component D, the following component E, and the following component It is characterized by containing F:

Component A: N-acylaminoate

Component B: Polyglycerin Fatty Acid Ester

Component C: Monoglycerin Fatty Acid Ester

Component D: Xanthan Gum and / or Cellulose Thickener

Component E: Polyhydric Alcohol

Component F: Water.

Content of the said component A is 0.5-15.0 mass%, content of the said component B is 0.1-15.0 mass%, content of the said component C is 0.1-10.0 mass%, and content of the said component D is 0.05-2.0 mass in the said stock solution. %, Content of the said component E is 3.0-40.0 mass%, and it is preferable that content of the said component F is 18.0-96.25 mass%.

The stock solution may further contain the following component G. It is preferable that content of the said component G in the said undiluted | stock solution is 0.05-3.0 mass%:

Component G: Polyethyleneglycol Fatty Acid Ester.

It is preferable that the said undiluted | stock solution does not contain a higher fatty acid and higher fatty acid salt, or the sum total of content of the higher fatty acid content and higher fatty acid salt in the said raw liquid is 0.1 mass% or less.

It is preferable that the said propellant contains liquefied petroleum gas.

It is preferable that the said propellant contains carbonic acid gas further.

The foam skin cleansing agent of the present invention is excellent in foaming power by having the above structure. In addition, it is possible to form a dense and creamy foam, and also excellent in foam retention. In addition, the above characteristics can be exhibited even without blending higher fatty acids and higher fatty acid salts in the stock solution.

In the foam-like skin cleansing agent of the present invention, a stock solution and a propellant are filled in an aerosol container. That is, the foam skin cleansing agent of the present invention includes at least an aerosol container, a stock solution filled in the aerosol container, and a propellant filled in the aerosol container. The foam skin cleansing agent of the present invention forms a foam (foam) at the time of use, that is, when discharged from an aerosol container, and / or after adhered to the object.

The stock solution contains N-acylamino acid salt, polyglycerin fatty acid ester, monoglycerin fatty acid ester, xanthan gum and / or cellulose thickener, polyhydric alcohol and water as essential components. The stock solution may further contain a polyethylene glycol fatty acid ester in addition to the essential components. In this specification, said "N-acyl amino acid salt" may be called "a component A." Moreover, said "polyglycerin fatty acid ester" may be called "component B." Moreover, said "monoglycerol fatty acid ester" may be called "component C." Moreover, said "xanthan gum and / or cellulose thickener" may be called "component D." Moreover, said "polyhydric alcohol" may be called "component E." Moreover, said "water" may be called "component F." Moreover, said "polyethylene glycol fatty acid ester" may be called "component G." The stock solution may further contain components (other components) other than the components A to G. Only 1 type may be used for the components A-G and other components, respectively, and 2 or more types may be used for them.

(Component A: N-acylamino acid salt)

The said component A is N-acyl amino acid salt. Component A is an anionic surfactant and acts as a cleaning component to enhance the cleaning power of the foam skin cleansing agent and to improve the foaming power of the foam skin cleansing agent. Only 1 type may be used for component A, and 2 or more types may be used for it.

Although it does not specifically limit as acyl group in component A, C8-C24 linear or branched aliphatic acyl group etc. are mentioned, For example, an octanoyl group, a decanoyl group, a lauroyl group, previously Stole group, palmitoyl group, stearoyl group, isostearoyl group, oleoyl group, linoleyl group, behenyl group, acyl group derived from palm oil fatty acid (hereinafter referred to as palm oil fatty acid acyl group), acyl group derived from palm oil fatty acid (Hereinafter referred to as palm fatty acid acyl group).

As amino acids in component A, for example, glycine, dimethylglycine, trimethylglycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophan, cystine, cysteine, methionine, proline, hydroxy Proline, aspartic acid, glutamic acid, asparagine, glutamine, arginine, histidine, lysine, sarcosine and the like. Among them, aspartic acid and glutamic acid are preferable, and aspartic acid is more preferable from the viewpoint of having a good foaming power and having good cleaning power even in a system containing carbonic acid gas.

Component A is, for example, alkali metal salts such as sodium salts and potassium salts; Alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

Among the above components A, N-acyl aspartic acid salt and N-acyl glutamate are preferable from the viewpoint of foaming power and detergency, and for example, sodium lauroyl asparticate (N-lauroyl-L-aspartic acid). Sodium), N- palm oil fatty acid acyl-L- sodium glutamate, and the like.

Although content of the component A in 100 mass% of undiluted | stock solution is not specifically limited, 0.5-15.0 mass% is preferable from a viewpoint of foaming force and a cleaning power, More preferably, it is 1.0-10.0 mass%, More preferably, it is 1.0-. 5.0 mass%. By the said content being 0.5 mass% or more, foaming force and washing | cleaning force further improve, and since the said content is 15.0 mass% or less, the lack of the feeling of earthiness after washing improves further. The said content is the total amount of content of all the components A contained in undiluted | stock solution.

(Component B: Polyglycerin Fatty Acid Ester)

The said component B is polyglycerol fatty acid ester. Component B enhances the formability of dense, creamy foam (ie, fine, high density foam) of foam skin cleansing agent. Moreover, the foaming power of foam skin cleansing agent is improved. Only 1 type may be used for component B, and 2 or more types may be used for it.

As said component B, monostearic-acid diglyceryl, monooleic-acid diglyceryl, monoisostearic acid diglyceryl, monostearic acid tetraglyceryl, monooleic acid tetraglyceryl, monolauric acid hexaglyceryl, monomyri, Stearic acid hexaglyceryl, monostearic acid hexaglyceryl, monooleic acid hexaglyceryl, monolauric acid decaglyceryl, monomyristin decaglyceryl, monostearate decaglyceryl, monooleic acid decaglyceryl, monolinoleic acid decaglycerol Polyglycerol fatty acid monoesters such as reel; Polyglycerol fatty acid diesters such as dioleic acid diglyceryl, distearate decaglyceryl, and diisostearic acid decaglyceryl; Polyglycerin fatty acid triesters such as tristearic acid tetraglyceryl, tristearic acid hexaglyceryl, tristearic acid decaglyceryl, and trioleic acid decaglyceryl; Polyglycerol fatty acid pentaester, such as pentastearic acid tetraglyceryl, pentaoleate tetraglyceryl, pentastearic acid hexaglyceryl, pentaoleic acid hexaglyceryl, etc. are mentioned. Especially, polyglycerol fatty acid monoester is preferable from a viewpoint of making it easy to form a dense and creamy foam.

Although the average degree of polymerization of the polyglycerol in component B is not specifically limited, From a viewpoint of making it easy to form a dense and creamy foam, Preferably it is 3-20, More preferably, it is 6-15.

The fatty acid in the component B is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, still more preferably a carbon number from the viewpoint of facilitating formation of dense and creamy foam. 12-18 fatty acids. As fatty acid in component B, myristic acid, lauric acid, palmitic acid, stearic acid, oleic acid, isostearic acid, etc. are mentioned, for example, Myristic acid and lauric acid are preferable.

As the component B, monomyritic acid decaglyceryl (myritic acid polyglyceryl-10) and monolauric acid decaglyceryl (lauric acid polyglyceryl-10) are particularly preferable.

Although content of the component B in 100 mass% of undiluted | stock solution is not specifically limited, From a viewpoint of making it easy to form a dense and creamy foam, 0.1-15.0 mass% is preferable, More preferably, it is 0.5-10.0 mass%, Furthermore, Preferably it is 1.0-7.0 mass%. When the said content is 0.1 mass% or more, foaming improves further, and when the said content is 15.0 mass% or less, the absence of stickiness after washing improves further. The said content is the total amount of content of all the component B contained in a stock solution.

(Component C: Monoglycerin Fatty Acid Ester)

The said component C is a monoglycerin fatty acid ester. Component C makes it difficult to crush the formed foam and improves the foam retention (foam persistence) of the foam-like skin cleansing agent. In particular, even in the presence of water, it is possible to improve the foam retention (continuity of the foam) of the foam skin cleansing agent. Only 1 type may be used for component C, and 2 or more types may be used for it.

As said component C, For example, Monoglycerol fatty acid monoester, such as glyceryl monolaurate, glyceryl monocaprylic acid, glyceryl monocapric acid, and glyceryl monooleate; Monoglycerin fatty acid diesters, such as a dicaprylic acid glyceryl, a glyceryl dilauric acid, and a glyceryl dioleate, are mentioned. Especially, monoglycerol fatty acid monoester is preferable from a viewpoint of improving foam retention.

The fatty acid in the component C is preferably a fatty acid having 6 to 22 carbon atoms, more preferably a fatty acid having 6 to 16 carbon atoms, still more preferably a fatty acid having 8 to 12 carbon atoms, from the viewpoint of improving foam retention. to be. As fatty acid in component C, lauric acid, caprylic acid, capric acid, oleic acid, myristic acid, stearic acid, etc. are mentioned, for example, lauric acid, caprylic acid, and capric acid are preferable. Do.

As component C, glyceryl monolaurate, glyceryl monocaprylate, and glyceryl monocapric acid are particularly preferable.

Although content of component C in 100 mass% of undiluted | stock solution is not specifically limited, 0.1-10.0 mass% is preferable from a viewpoint of improving foam retention, More preferably, it is 0.5-5.0 mass%, More preferably, it is 0.5- 3.0 mass%. When the said content is 0.1 mass% or more, foam retention improves further, and since the said content is 10.0 mass% or less, the lack of the crumb after washing improves further. The said content is the total amount of content of all the components C contained in undiluted | stock solution.

(Component D: xanthan gum and / or cellulose thickener)

The said component D is one or both of a xanthan gum and / or a cellulose thickener, ie, a xanthan gum and a cellulose thickener. Component D makes it difficult to crush the formed foam, and improves the foam retention (foam persistence) of the foam-like skin cleansing agent. In particular, it is easy to exert the said effect by using in an aerosol formulation. When component D is mix | blended with the cleaning agent filled in a pump type | mold foamer container, foam formation becomes inadequate and it becomes easy to form a dense and creamy foam. Only 1 type may be used for component D, and 2 or more types may be used for it.

Although it does not specifically limit as said cellulose thickener, For example, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose etc. are mentioned. Among the above, hydroxyethyl cellulose is preferable. As the component D, xanthan gum and hydroxyethyl cellulose are preferable, and xanthan gum is particularly preferable from the viewpoint of excellent stability due to difficulty in forming complexes and insolubles with other surfactants.

Although content of the component D in 100 mass% of undiluted | stock solution is not specifically limited, 0.05-2.0 mass% is preferable from a viewpoint of improving foam retention, More preferably, it is 0.1-1.0 mass%, More preferably, it is 0.1- 0.5 mass%. When the said content is 0.05 mass% or more, foam retention improves further, and since the said content is 2.0 mass% or less, the absence of the slipper after washing improves further. The said content is the total amount of content of all the component D contained in a stock solution.

(Component E: Polyhydric Alcohol)

The said component E is a polyhydric alcohol. Component E has the effect of further improving foaming (dense and creamy foaming). Moreover, it has the effect of improving the moist feeling after washing | cleaning. Only 1 type may be used for the said component E, and 2 or more types may be used for it.

As the component E, for example, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, isoprene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol (1,3-butanediol), 1,2 Butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, glycerin (1,2,3-propanetriol), diglycerine, polyglycerine, Sorbitol, maltitol, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside and the like. Although the number average molecular weight of the said polyethyleneglycol is not specifically limited, Preferably it is 50-10000, More preferably, it is 100-5000. Among the above, glycerin and polyethylene glycol are preferable from the viewpoint of foaming improvement.

From the viewpoint of further improving the foaming, the content of component E in 100% by mass of the stock solution is preferably 3.0 to 40.0% by mass, more preferably 5.0 to 30.0% by mass. When the said content is 3.0 mass% or more, foaming improves further, and since the said content is 40.0 mass% or less, the absence of the slipper after washing improves further. The said content is the total amount of content of all the components E contained in undiluted | stock solution.

(Component F: Water)

The said component F is water and although it does not specifically limit, Purified water is preferable. As for content of the water of the component F in 100 mass% of undiluted | stock solution, 18.0-99.6 mass% is preferable, from a viewpoint of forming favorable foam, More preferably, it is 50.0-90.0 mass%, More preferably, it is 60.0-80.0 mass%. .

(Component G: Polyethylene Glycol Fatty Acid Ester)

The said component G is polyethyleneglycol fatty acid ester. Component G is effective for foam retention of foam-like skin cleansing agent, and further improvement of foaming. Only 1 type may be used for the said component G, and 2 or more types may be used for it.

As the component G, For example, mono fatty-acid polyethyleneglycols, such as a monolauric-acid polyethyleneglycol, a monostearic acid polyethyleneglycol, a monoisostearic-acid polyethyleneglycol, and a monooleic acid polyethyleneglycol; And difatty acid polyethylene glycols such as dilauric acid polyethylene glycol, distearate polyethylene glycol, diisostearic acid polyethylene glycol and dioleate polyethylene glycol. Especially, monofatty acid polyethyleneglycol is preferable from a viewpoint of improving foaming and foam retention.

Although the fatty acid in component G is not specifically limited, C8-C24 fatty acid is preferable, More preferably, it is C10-C20 fatty acid, More preferably, it is C12-C18 fatty acid. Although the average added mole number of ethylene oxide in component G is not specifically limited, 100-300 are preferable, More preferably, it is 120-280.

The content of component G in 100% by mass of the stock solution is preferably 0.05 to 3.0% by mass, more preferably 0.1 to 2.0% by mass, still more preferably 0.5 to 1.5% by mass from the viewpoint of increasing foaming and foam retention. to be. When the said content is 0.05 mass% or more, foaming and foam holding improve further, and when the said content is 3.0 mass% or less, foam does not become too hard, and foam becomes easy to have moderate elasticity, and it is preferable. The said content is the total amount of content of all the components G contained in undiluted | stock solution.

Although the said stock solution is not specifically limited, For example, surfactant (anionic surfactant, cationic surfactant, nonionic surfactant, amphoteric surfactant, etc.); Spices; ethanol; Silicone oils such as cyclopentasiloxane, hydrogendimethicone, caprylylmethicone and dimethicone; Fatty acid ester oils such as isopropyl myristin, ethylhexyl palmitate, and cetyl 2-ethylhexanoate; Higher alcohols; Vegetable oils; Preservatives such as phenoxyethanol, octoxyglycerin and methyl paraben; Cooling agents such as menthol, menthylglyceryl ether, camphor and peppermint oil; Anti-inflammatory agents such as dipotassium glycyrrhinate and stearyl glycyrrhinate; Plant extract extracts such as peony, peony, loquat and aloe; Thickening polymers such as carboxyvinyl polymer and alkyl-modified carboxyvinyl polymer; Antioxidants such as tocopherol and dibutylhydroxytoluene; Whitening agents such as arbutin and ascorbic acid; Powders such as silica, talc and nylon powder; Essential oils such as lavender oil and orange oil; Hyaluronic acid and / or hyaluronic acid derivatives; Amino acids and / or amino acid derivatives, such as N-acetyl-L-hydroxyproline, etc. (however, components other than components A-G) may be included.

The stock solution may contain a higher alcohol having 12 to 22 carbon atoms. As for carbon number of the said higher alcohol, 14-18 are more preferable. The higher alcohol has an effect of further improving foaming. Although it does not specifically limit as said higher alcohol, For example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, octyl dodecanol, oleyl alcohol, etc. are mentioned, for example. Can be. Among the above, myristyl alcohol, cetyl alcohol and stearyl alcohol are preferable. Only 1 type may be used for the said higher alcohol, and 2 or more types may be used for it.

As for content of the said higher alcohol in 100 mass% of undiluted | stock solution, 0.05-0.5 mass% is preferable, More preferably, it is 0.1-0.3 mass%, More preferably, it is 0.1-0.2 mass%. When the said content is 0.05 mass% or more, foaming improves further, and when the said content is 0.2 mass% or less, the risk of precipitation of a higher alcohol can be further suppressed. The said content is the total amount of content of all the said higher alcohol contained in a stock solution.

The said stock solution may contain nonionic surfactants other than component B and component C from a viewpoint of making it easy to emulsify a propellant in a stock solution, and further improving stability and foam quality with time. As said nonionic surfactant, alkyl glyceryl ether, polyoxyalkylene alkyl ether, polyoxyalkylene hardened castor oil, glycol fatty acid ester, polyoxyalkylene glyceryl ether fatty acid ester, sorbitan fatty acid ester, polyoxyalkyl Lensorbitan fatty acid ester, silicone surfactant, etc. are mentioned.

As the nonionic surfactant, a combination of a nonionic surfactant having a HLB (hydrophile-lipophile balance) value of 4.5 to 9.0 and a nonionic surfactant having an HLB value of 9.5 to 19.0 is selected from the viewpoint of improving the emulsification characteristic. desirable. As a nonionic surfactant whose said HLB value is 4.5-9.0, sorbitan fatty acid esters, such as palm oil fatty acid sorbitan, etc. are mentioned, for example. As said nonionic surfactant whose HLB value is 9.5-19.0, For example, Polyoxyethylene sorbitan fatty acid ester, such as polystearic acid sorbitan monostearate; Polyoxyethylene glycerine fatty acid esters such as monostearic acid polyoxyethylene glyceryl; Polyoxyethylene alkyl ethers such as polyoxyethylene cetyl ether; Polyoxyethylene hardened castor oil etc. are mentioned.

As for content of the said nonionic surfactant in 100 mass% of undiluted | stock solution, 0.1-5.0 mass% is preferable from a viewpoint of maintaining foaming force, More preferably, it is 0.5-3.0 mass%, More preferably, it is 0.5-2.0 mass %to be. The said content is the total amount of content of all the said nonionic surfactant contained in a stock solution.

Although the said stock solution is not specifically limited, When the eye irritation reduction and the ground after washing | cleaning require the characteristic of feeling reduction, it is preferable that it is a small quantity even if it does not contain or contains higher fatty acid and higher fatty acid salt. Specifically, the total amount of the higher fatty acid content and the higher fatty acid salt content in 100 mass% of the stock solution is preferably 0.1 mass% or less (that is, 0 to 0.1 mass%), and more preferably 0.01 mass% or less. . It is preferable because substantially no higher fatty acids or higher fatty acid salts can be used, since the irritation to the eyes and the skin feeling after washing can be further reduced. In addition, since there is no fear of clogging of the injection port of the aerosol container due to the precipitation of the higher fatty acid salt, it is not necessary to separately mix the components for suppressing precipitation, which is advantageous in terms of quality design and cost.

As said higher fatty acid, For example, C12-C22 higher fatty acids, such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid; Vegetable oils, such as olive oil, palm oil, palm oil, and cottonseed oil; And animal fats and oils such as fish oil and tallow. Moreover, as a salt in the said higher fatty acid salt, For example, alkali metal salts, such as a sodium salt and potassium salt; Alkanolamine salts, such as a monoethanolamine salt, a diethanolamine salt, and a triethanolamine salt, etc. are mentioned.

The stock solution can be produced by a conventional method. For example, the above-mentioned each component may be mixed, and a well-known method, specifically, the method of stirring with a homo mixer etc. are mentioned.

Although it does not specifically limit as said propellant, For example, Gas, especially compressed gas, such as air, nitrogen, a carbon dioxide gas, nitrous oxide; Liquefied petroleum gas (LPG), dimethyl ether (DME), fluorocarbon, etc. are mentioned. Only 1 type may be used for the said injection agent and 2 or more types may be used for it. From the viewpoint of easy adjustment of the internal pressure of the aerosol container, the propellant preferably contains liquefied petroleum gas.

Propane, butane, isobutane, isopentane, etc. are mentioned as said liquefied petroleum gas. Only 1 type may be used for the said liquefied petroleum gas, and 2 or more types may be used for it. In the present invention, the liquefied petroleum gas preferably contains isobutane because the irritation to the skin is small. As for content of isobutane in 100 volume% of said liquefied petroleum gas, 80.0 volume% or more is preferable, More preferably, it is 90.0 volume% or more.

Content of the said liquefied petroleum gas in 100 mass% of total amounts of the said stock solution and the said propellant becomes like this. Preferably it is 1.0-10.0 mass%, More preferably, it is 1.0-8.0 mass%.

It is preferable that the said propellant contains carbonic acid gas with liquefied petroleum gas from a viewpoint of obtaining smooth foaming. Usually, as the amount of isobutane in the liquefied petroleum gas increases, the internal pressure of the aerosol container becomes harder to rise. However, in the present invention, even when a liquefied petroleum gas containing a large amount of isobutane is used, the internal pressure is increased to achieve discharge. You can strengthen the momentum.

Content of the said carbon dioxide gas in 100 mass% of total amounts of the said stock solution and the said propellant becomes like this. Preferably it is 0.1-2.0 mass%, More preferably, it is 0.1-1.5 mass%.

Content of the said propellant in 100 mass% of total amounts of the said stock solution and the said propellant becomes like this. Preferably it is 1.1-12.0 mass%, More preferably, it is 1.1-9.5 mass%.

The foam-like skin cleansing agent of the present invention can be produced by filling an aerosol container with a stock solution and a propellant by a conventional method. As the aerosol container, a known aerosol spray container can be used.

The foam-like skin cleansing agent of the present invention uses N-acylamino acid (component A) as the main cleansing component, which is excellent in foaming force, low in irritation, and hard to feel after washing. However, there is a problem that component A is insufficient in terms of the formation of dense and creamy foam compared with higher fatty acid soap.

In order to solve the said problem, in this invention, polyglycerol fatty acid ester (component B) and monoglycerol fatty acid ester (component C) are used together. Component B has a relatively bulky hydrophilic group. It is presumed that this is because the curvature of the micelle to be formed increases when the component B is oriented to the gas-liquid interface at the time of foaming of the foam-like skin cleansing agent, and a fine foam can be formed. On the other hand, since the component C has a relatively compact hydrophilic group, at the gas-liquid interface of the micelles in which the component A and the component B are oriented, the component is stabilized by aligning the component A or the component B so as to enter into the gap between the component A and the component B, and the film strength of the foam It is presumed to improve the efficiency of the foam, which improves the persistence (bubble retention) of the foam.

Further, xanthan gum and / or cellulose thickener (component D), which are water-soluble thickeners, increase the viscosity of the liquid film of the foam, strengthen the foam film, make the formed foam difficult to be crushed, and improve foam retention. In addition, the polyhydric alcohol (component E) is present in the water between micelles, and is believed to stabilize micelles by interacting with the hydrophilic groups of component B forming micelles, thereby improving foaming. In addition, the moisturizing effect also contributes to the moist feeling after washing.

In addition, since polyethyleneglycol fatty acid ester (component G) has a relatively large hydrophilic group and a thickening effect similarly to component B, when it is added, foaming and foam fat can be improved further.

The foam skin cleansing agent of the present invention is a skin cleansing agent used to clean skin such as the face. Examples of the foam skin cleansing agent of the present invention include face wash, hand soap, body soap and scalp cleaning agent. Since the foam skin cleansing agent of this invention can discharge a dense and creamy foam, it is suitable also for the cleaning material of sensitive parts, such as a face wash especially. Moreover, since foam retention is excellent especially in presence of water, it can be used suitably for washing | cleaning, massage, etc. in the environment where humidity is high, such as a bathroom, but water adhered to a hand or a washing | cleaning site | part.

Example

Hereinafter, the present invention will be described in more detail with reference to Examples and the like, but the present invention is not limited to these Examples.

Examples 1 to 33 and Comparative Examples 1 to 5

The stock solution consisting of the composition shown in the table is filled into an aerosol container (φ 35 mm × 105 mm, aluminum can, container full amount: 91 ml), the aerosol valve is clinched into the container, and then the propellant is filled from the stem. Then, a suitable spout was attached and the foam skin cleansing agent was obtained. In addition, the total amount of the stock solution and propellant which filled the aerosol container were 40g. The propellant was a mixture of LPG (100% of isobutane) and carbon dioxide gas, and the mass ratio of LPG and carbon dioxide gas was 3.0: 0.5 (LPG: carbonic acid gas). The mass ratio of the stock solution and the propellant was 96.5: 3.5 (stock solution: spraying agent).

The detail of each raw material in an Example and a comparative example is as follows. In addition, the quantity described in the table is not the quantity of a commodity, but the quantity of each component (a quantity of an active ingredient).

N-lauroyl-L-aspartic acid sodium: Asahi Kasei Chemicals Co., Ltd. make, brand name "aminosupply FLDS-L"

N- palm oil fatty acid acyl-L- glutamate sodium: Asahi Kasei Chemicals make, a brand name "aminosupply ACDS-L"

Monomyristin decaglyceryl: Aoki Yushi Kogyo Co., Ltd. make, brand name "glysurf 10MM"

Monolauric acid decaglyceryl: Nippon Impact High School Co., Ltd. make, brand name "DECAGLYN1-L"

Glyceryl monolaurate: Daiyo Chemical Co., Ltd. make, brand name "sun software No.750-C"

Monocaprylic acid glyceryl: Daiyo Chemical Co., Ltd. make, brand name "sun software No.700P-2-C"

Monocaprylic acid glyceryl: Daiyo Chemical Co., Ltd. make, brand name "sun software No.760-C"

Xanthan gum: DSP gokyo food & chemical company make, brand name `` eco gum t ''

Hydroxyethyl cellulose: Daicel Corporation make, brand name "HEC Daicel SE400"

Glycerin: Sakamoto Yakuching High School Co., Ltd. make, brand name "concentrated glycerin for cosmetics"

Dipropylene glycol: The shell chemicals Japan company make, brand name "dipropylene glycol S"

Polyethylene glycol: Sanyo Kasei Kogyo Co., Ltd. brand name "PEG-1500", number average molecular weight 1500

Monostearic acid polyethylene glycol: Gao Corporation make, brand name "Emanon 3199VB", addition mole number 150 of ethylene oxide

Myristyl alcohol: Gao Corporation make, brand name "Calcol 4098"

Palm oil fatty acid sorbitan: Gao Corporation make, brand name "leodol supermarket SP-L10"

Monostearic acid polyoxyethylene sorbitan: Gao Corporation make, brand name "leodol TW-S120V"

About foam-form skin cleansing agents prepared in Examples 1 to 33 and Comparative Examples 1 to 5, "bubble power", "bubble quality (whether it is a dense and creamy foam)", "bubble holding" (bubble) Persistence). In addition, evaluation was performed by three expert evaluators.

Test Example 1 Evaluation of Bubble Force and Foaming Quality

The foamed skin cleansing agent of each Example and each comparative example was discharged for 1 second on the kim towel (a type | folded by four: the Nippon Seishi Cresia Co., Ltd. make).

Ten seconds after the discharge, the formability of the foam and the foam formed were visually confirmed and evaluated according to the following criteria. The evaluation result was described in the table.

<Evaluation standard of bubble power>

(Good): The bubble was formed in the dome shape.

X (poor): Foaming was inadequate, and foam did not form on a dome.

<Evaluation standard of super quality>

(Good): The fine foam was formed uniformly and with high density, and was a creamy appearance as a whole.

X (poor): A relatively large bubble was recognized on the surface of the foam, the density of the foam was low, and the size of the foam was uneven.

Test Example 2: Evaluation of Foam Retention

Immediately after the evaluation of Test Example 1, at a distance of about 20 cm from the top of the foam formed in the dome shape, two pushes of purified water filled in a pump container (spray amount of spray: 0.5 mL / 1 push) were sprayed on the entire foam and 30 seconds later. The foam was visually confirmed and evaluated based on the following criteria. The evaluation result was described in the table.

<Evaluation standard of bubble maintenance>

(Good): The bubble shape immediately after discharge was maintained.

X (poor): The bubble shape immediately after discharge was clearly collapsed.

TABLE 1

TABLE 2

TABLE 3

Test Example 3: Evaluation of Usability

Moreover, about the foam-like skin cleansing agent prepared in Examples 1-33, "usability" was evaluated by the following method. In addition, evaluation was performed by three professional evaluation members.

The foam-like skin cleansing agent of each Example and each comparative example was discharged to palm for 2 second, and face-washing was performed by the discharged foam. Usability was evaluated from the texture of the skin after face-wash.

As a result, eye irritation was not felt when all the foam skin cleansers of Examples 1 to 33 were used. In addition, when Examples 1-5, 7-11, 13-17, 19-23, 25-27, and 29-33 foam form skin cleansing agent are used, both the feeling of a wash-out of a dirt, and the lack of a stain are compatible. It was a washing state. On the other hand, the foam-like skin cleansing agents of Examples 6 and 18 had a strong degreasing force, a fresh feeling of the skin after the face wash was slightly stronger, and a feeling of biting was slightly felt. On the other hand, when the foamed skin cleansing agents of Examples 12, 24, and 28 were used, the skin after washing the face was slightly soft or sticky.

The prescription example of the foam skin cleansing agent of this invention is shown below.

Prescription example 1 (face wash)

(Stock)

L-menthol 0.1 mass%

Isopropylmethylphenol 0.1 mass%

Dipotassium glycyrrhinate 0.1 mass%

Xanthan Gum 0.3 mass%

N-Lauroyl-L-Sodium Aspartate 3.0 mass%

glycerin      15.0 mass%

Sorbitol 5.0 mass%

Polyethylene Glycol (PEG1500) 5.0 mass%

Polyoxyethylene Cured Castor Oil 0.5 mass%

Palm oil fatty acid sorbitan 0.2 mass%

Cetanol 0.2 mass%

Decaglyceryl monolauric acid 4.0 mass%

Glyceryl Monolaurate 1.5 mass%

Sodium hyaluronate 0.1 mass%

Glycerin Mono 2-ethylhexyl Ether 0.1 mass%

Spices 0.1 mass%

Purified water Balance

Sum 100 mass%

(Injector)

LPG (100% Isobutane)      86.0 mass%

Carbon dioxide gas      14.0 mass%

Sum 100 mass%

Stock solution / spraying agent (mass ratio) = 97/3

Prescription example 2 (cleaning agent for body)

(Stock)

L-menthol 0.1 mass%

N-palm oil fatty acid acyl-L-sodium glutamate 5.0 mass%

Myristic acid 0.1 mass%

Monostearic acid polyethylene glycol 0.5 mass%

Palm oil fatty acid sorbitan 0.5 mass%

Monostearic acid polyoxyethylene sorbitan 1.0 mass%

Hydroxyethyl cellulose 0.3 mass%

Tea extract 3.0 mass%

Dipropylene glycol 5.0 mass%

glycerin 5.0 mass%

1,3-butylene glycol 5.0 mass%

Phenoxyethanol 0.1 mass%

Decaglyceryl Monomyristin 5.0 mass%

Monocaprylic Acid Glyceryl 0.5 mass%

Lavender oil 0.1 mass%

Purified water Balance

Sum 100 mass%

(Injector)

LPG (1% by mass of propane / 99% by mass of butane, 0.39 MPa vapor pressure at 20 ° C) 100 mass%

Stock solution / spraying agent (mass ratio) = 95/5

Prescription example 3 (cleaning agent for body)

(Stock)

N-palm oil fatty acid acyl-L-sodium glutamate 5.0 mass%

Monolauric Acid Polyethylene Glycol 1.0 mass%

Palm oil fatty acid sorbitan 0.5 mass%

Polyoxyethylene cetyl ether (cetes-20) 1.0 mass%

Xanthan Gum 0.3 mass%

Aloe extract 0.1 mass%

Licorice Extract Powder (カ ン ゾ ウ 抽出 末) 0.1 mass%

glycerin      20.0 mass%

Dipropylene glycol 5.0 mass%

Maltitol 5.0 mass%

1,2-octanediol 0.1 mass%

Decaglyceryl monolauric acid 4.0 mass%

Glyceryl Monocapric Acid 2.0 mass%

Orange oil 0.1 mass%

Purified water Balance

Sum 100 mass%

(Injector)

LPG (100% Isobutane)      86.0 mass%

Carbon dioxide gas      14.0 mass%

Sum 100 mass%

Stock solution / spraying agent (mass ratio) = 96/4

Industrial availability

The foam skin cleansing agent of the present invention is suitably used as a face wash, hand soap, body soap or scalp cleanser.

Claims (7)

A foam-like skin cleanser filled with an aerosol container containing a stock solution and a propellant, wherein the stock solution contains the following component A, the following component B, the following component C, the following component D, the following component E and the following component F Skin Cleanser:
Component A: N-acylaminoate
Component B: Polyglycerin Fatty Acid Ester
Component C: Monoglycerin Fatty Acid Ester
Component D: Xanthan Gum and / or Cellulose Thickener
Component E: Polyhydric Alcohol
Component F: Water. The method of claim 1,
Content of the said component A is 0.5-15.0 mass%, content of the said component B is 0.1-15.0 mass%, content of the said component C is 0.1-10.0 mass%, and content of the said component D is 0.05-2.0 mass in the said stock solution. %, Content of said component E is 3.0-40.0 mass%, content of said component F is 18.0-96.25 mass%, The foam-like skin cleansing agent. The method according to claim 1 or 2,
The above-mentioned undiluted solution further contains foam-like skin cleansing agent:
Component G: Polyethyleneglycol Fatty Acid Ester. The method of claim 3, wherein
Foam-form skin cleansing agent whose content of the said component G is 0.05-3.0 mass% in the said undiluted | stock solution. The method according to any one of claims 1 to 4,
The above-mentioned undiluted solution does not contain higher fatty acids and higher fatty acid salts, or the sum total of content of the higher fatty acid content and higher fatty acid salt in the said undiluted | stock solution is 0.1 mass% or less. The method according to any one of claims 1 to 5,
A foam skin cleanser wherein the propellant contains liquefied petroleum gas. The method according to any one of claims 1 to 6,
The propellant further comprises a foam skin cleanser containing carbon dioxide gas.