WO2018221420A1

WO2018221420A1 - Foamed skin cleanser

Info

Publication number: WO2018221420A1
Application number: PCT/JP2018/020210
Authority: WO
Inventors: 亜紗子津村; 拓也山科
Original assignee: 株式会社マンダム
Priority date: 2017-05-30
Filing date: 2018-05-25
Publication date: 2018-12-06
Also published as: JPWO2018221420A1; KR20190100295A; JP6862069B2; CN110214001A

Abstract

Provided is a foamed skin cleanser used in aerosol-type foamer containers, wherein the foamed skin cleanser has excellent foaming power, can form a dense and creamy foam, and also has excellent foaming sustainability (foaming persistence). This foamed skin cleanser contains a stock solution and a propellant which are filled in an aerosol container, the stock solution containing component A: N-acylamino acid salt, component B: polyglycerin fatty acid ester, component C: monoglycerin 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 cleansing material.

Conventionally, among skin cleansers such as facial cleansers and hand soaps, foam-type skin cleansers that form foam by discharging from a pump type or aerosol type former container are known as those that can be easily foamed during use. (For example, Patent Documents 1 to 3). In these foam-like skin cleansing materials, emphasis is placed on properties such as ease of foaming (foaming power), foam quality, and foam persistence (foam stickiness). As the foam quality, for example, a dense and creamy foam quality in which fine foams are formed at a high density is required.

JP 2012-102194 A JP 2007-131585 A JP 2012-240985 A

A cleaning material such as Patent Document 1 containing a higher fatty acid salt as a main surfactant component has high foaming power and excellent foam quality. However, for example, when used as a facial cleanser, irritation to the eyes may occur, or the skin may feel tight after being washed. In addition, when used in an aerosol-type former container, there is a possibility that higher fatty acid salts may be precipitated, so it is necessary to take measures to suppress the precipitation. On the other hand, cleaning materials that do not contain higher fatty acid salts such as Patent Documents 2 and 3 may be inferior in terms of foaming power and foam fineness. In particular, when used in the presence of water, such as in a bathroom, the foam may not be sufficient, and the dense and creamy foam may not be sustained sufficiently.

Accordingly, an object of the present invention is a foam-like skin cleansing material used in an aerosol-type former container, which is excellent in foaming power, can form dense and creamy foam, and further, the persistence of the foam (foam stickiness) It is also to provide an excellent foam skin cleanser.

The foam skin cleansing material of the present invention is a foam skin cleansing material in which a stock solution and a propellant are filled in an aerosol container, and the stock solution comprises the following component A, the following component B, the following component C, and the following component D. The following component E and the following component F are contained.
Component A: N-acyl amino acid salt Component B: Polyglycerol fatty acid ester Component C: Monoglycerol fatty acid ester Component D: Xanthan gum and / or cellulose thickener Component E: Polyhydric alcohol Component F: Water

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

The stock solution may further contain the following component G. The content of the component G in the stock solution is preferably 0.05 to 3.0% by mass.
Component G: Polyethylene glycol fatty acid ester

The stock solution preferably does not contain higher fatty acids and higher fatty acid salts, or the total content of higher fatty acids and higher fatty acid salts in the stock solution is preferably 0.1% by mass or less.

The propellant preferably contains liquefied petroleum gas.

The propellant preferably further contains carbon dioxide gas.

The foam skin cleansing material of the present invention is excellent in foaming power by having the above configuration. In addition, it can form dense and creamy foam, and is also excellent in foam. Furthermore, the above characteristics can be exhibited without blending higher fatty acids and higher fatty acid salts in the stock solution.

The foam skin cleansing material of the present invention is one in which an undiluted solution and a propellant are filled in an aerosol container. That is, the foam skin cleansing material of the present invention comprises 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 material of the present invention forms foam (foam) at the time of use, that is, when discharged from an aerosol container and / or after adhering to an object.

The stock solution contains N-acyl amino 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 the present specification, the “N-acyl amino acid salt” is sometimes referred to as “component A”. Further, the “polyglycerin fatty acid ester” may be referred to as “component B”. In addition, the “monoglycerin fatty acid ester” may be referred to as “component C”. The “xanthan gum and / or cellulose thickener” may be referred to as “component D”. Further, the “polyhydric alcohol” may be referred to as “component E”. Further, the “water” may be referred to as “component F”. Further, the “polyethylene glycol fatty acid ester” may be referred to as “component G”. The stock solution may further contain components other than the components A to G (other components). Each of components A to G and other components may be used alone or in combination of two or more.

(Component A: N-acyl amino acid salt)
Component A is an N-acyl amino acid salt. Component A is an anionic surfactant that acts as a cleaning component to increase the detergency of the foam skin cleanser and improve the foaming power of the foam skin cleanser. Component A may be used alone or in combination of two or more.

The acyl group in Component A is not particularly limited, and examples thereof include linear or branched aliphatic acyl groups having 8 to 24 carbon atoms, such as octanoyl group, decanoyl group, lauroyl group, myristoyl group, Palmitoyl group, stearoyl group, isostearoyl group, oleoyl group, linoleoyl 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) And the like).

Examples of amino acids in component A include glycine, dimethylglycine, trimethylglycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophan, cystine, cysteine, methionine, proline, hydroxyproline, aspartic acid, glutamic acid. , Asparagine, glutamine, arginine, histidine, lysine, sarcosine and the like. Of these, aspartic acid and glutamic acid are preferred, and aspartic acid is more preferred from the viewpoint of good foaming ability even in a system containing carbon dioxide gas and good detergency.

Component A is, for example, an alkali metal salt such as sodium salt or potassium salt; an alkanolamine salt such as monoethanolamine salt, diethanolamine salt, or triethanolamine salt.

Among the above components A, N-acyl aspartate and N-acyl glutamate are preferable from the viewpoint of foaming power and detergency. For example, sodium lauroyl aspartate (N-lauroyl-L-sodium aspartate), N-coconut oil fatty acid acyl-sodium L-glutamate and the like.

The content of component A in 100% by mass of the stock solution is not particularly limited, but is preferably 0.5 to 15.0% by mass, more preferably 1.0 to 10% from the viewpoint of foaming power and detergency. It is 0% by mass, more preferably 1.0 to 5.0% by mass. When the content is 0.5% by mass or more, foaming power and detergency are further improved, and when the content is 15.0% by mass or less, there is no feeling of being washed up. Further improvement. The content is the total content of all components A contained in the stock solution.

(Component B: Polyglycerol fatty acid ester)
Component B is a polyglycerin fatty acid ester. Component B enhances the formation of dense and creamy foams (i.e., finely formed foams) in the foam skin cleanser. In addition, the foaming power of the foam skin cleanser is improved. Component B may use only 1 type and may use 2 or more types.

Examples of the component B include diglyceryl monostearate, diglyceryl monooleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl monooleate, hexaglyceryl monolaurate, hexaglyceryl monomyristate, mono Polyglycerin fatty acid monoesters such as hexaglyceryl stearate, hexaglyceryl monooleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl monolinoleate; dioleic acid diester Polyglycerin fatty acid diesters such as glyceryl, decaglyceryl distearate, decaglyceryl diisostearate; tetraglyceryl tristearate Polyglyceryl fatty acid triesters such as hexaglyceryl tristearate, decaglyceryl tristearate, decaglyceryl trioleate; tetraglyceryl pentastearate, tetraglyceryl pentaoleate, hexaglyceryl pentastearate, hexaglyceryl pentaoleate, etc. Examples include polyglycerin fatty acid pentaester. Among these, polyglycerin fatty acid monoester is preferable from the viewpoint of easily forming a dense and creamy foam.

The average degree of polymerization of polyglycerin in Component B is not particularly limited, but is preferably 3 to 20, more preferably 6 to 15 from the viewpoint of easily forming dense and creamy bubbles.

The fatty acid in Component B is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, more preferably 12 to 12 carbon atoms from the viewpoint of easily forming dense and creamy foam. 18 fatty acids. Examples of the fatty acid in Component B include myristic acid, lauric acid, palmitic acid, stearic acid, oleic acid, and isostearic acid, and myristic acid and lauric acid are preferable.

Component B is particularly preferably decaglyceryl monomyristate (polyglyceryl-10 myristate) or decaglyceryl monolaurate (polyglyceryl-10 laurate).

The content of Component B in 100% by mass of the stock solution is not particularly limited, but is preferably 0.1 to 15.0% by mass, more preferably 0.5% from the viewpoint of easily forming a dense and creamy foam. It is ˜10.0 mass%, more preferably 1.0 to 7.0 mass%. When the content is 0.1% by mass or more, the foam quality is further improved, and when the content is 15.0% by mass or less, the non-stickiness after washing is further improved. The content is the total content of all components B contained in the stock solution.

(Component C: Monoglycerin fatty acid ester)
Component C is a monoglycerin fatty acid ester. Ingredient C makes the formed foam difficult to crush and improves the foaminess (foam persistence) of the foam skin cleanser. In particular, the foaminess (foam persistence) of the foam skin cleanser can be improved even in the presence of water. Component C may use only 1 type and may use 2 or more types.

Examples of the component C include monoglycerin fatty acid monoesters such as glyceryl monolaurate, glyceryl monocaprylate, glyceryl monocaprate, and glyceryl monooleate; monoglycerin fatty acids such as glyceryl dicaprate, glyceryl dilaurate, and glyceryl dioleate. Diesters may be mentioned. Of these, monoglycerin fatty acid monoester is preferable from the viewpoint of improving foaminess.

The fatty acid in Component C is preferably a fatty acid having 6 to 22 carbon atoms, more preferably a fatty acid having 6 to 16 carbon atoms, and still more preferably a fatty acid having 8 to 12 carbon atoms from the viewpoint of improving foaminess. . Examples of the fatty acid in Component C include lauric acid, caprylic acid, capric acid, oleic acid, myristic acid, stearic acid, and the like, and lauric acid, caprylic acid, and capric acid are preferable.

Component C is particularly preferably glyceryl monolaurate, glyceryl monocaprylate, or glyceryl monocaprate.

The content of Component C in 100% by mass of the stock solution is not particularly limited, but is preferably 0.1 to 10.0% by mass, more preferably 0.5 to 5.0% by mass from the viewpoint of improving foaminess. %, More preferably 0.5 to 3.0% by mass. When the content is 0.1% by mass or more, the foaminess is further improved, and when the content is 10.0% by mass or less, the absence of washing-up is further improved. The content is the total content of all components C contained in the stock solution.

(Component D: Xanthan gum and / or cellulose thickener)
Component D is one or both of xanthan gum and / or cellulosic thickener, that is, xanthan gum and cellulosic thickener. Ingredient D makes the formed foam less likely to collapse and improves the foaminess (foam persistence) of the foam skin cleanser. In particular, the above effects are easily exhibited by using an aerosol dosage form. When component D is blended in a cleaning material filled in a pump-type former container, foam formation is insufficient, and it is difficult to form dense and creamy foam. Component D may use only 1 type and may use 2 or more types.

The cellulose-based thickener is not particularly limited, and examples thereof include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose. Among the above, hydroxyethyl cellulose is preferable. Component D is preferably xanthan gum or hydroxyethyl cellulose, particularly preferably xanthan gum, from the viewpoint that it is difficult to form a complex with other surfactants or insoluble matter and is excellent in stability.

The content of Component D in 100% by mass of the stock solution is not particularly limited, but is preferably 0.05 to 2.0% by mass, more preferably 0.1 to 1.0% by mass from the viewpoint of improving foaminess. %, More preferably 0.1 to 0.5% by mass. When the content is 0.05% by mass or more, the foaminess is further improved, and when the content is 2.0% by mass or less, the non-smoothness after washing is further improved. The content is the total content of all components D contained in the stock solution.

(Component E: Polyhydric alcohol)
The component E is a polyhydric alcohol. Component E has the effect of further improving the foam quality (dense and creamy foam quality). Moreover, it has the effect of improving the moist feeling after washing. The said component E may use only 1 type and may use 2 or more types.

Component E includes, 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), diglycerin, polyglycerin, sorbitol, multi Tall, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside and the like. The number average molecular weight of the polyethylene glycol is not particularly limited, but is preferably 50 to 10,000, more preferably 100 to 5,000. Among these, glycerin and polyethylene glycol are preferable from the viewpoint of improving foam quality.

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 from the viewpoint of further improving the foam quality. . When the content is 3.0% by mass or more, the foam quality is further improved, and when the content is 40.0% by mass or less, the non-smoothness after washing is further improved. The content is the total content of all components E contained in the stock solution.

(Component F: water)
The component F is water and is not particularly limited, but purified water is preferable. The content of water of component F in 100% by mass of the stock solution is preferably 18.0 to 96.25% by mass, more preferably 50.0 to 90.0% by mass, from the viewpoint of forming good foam. More preferably, it is 60.0 to 80.0% by mass.

(Component G: Polyethylene glycol fatty acid ester)
The component G is a polyethylene glycol fatty acid ester. Component G is effective for further improving the foam and foam quality of the foam skin cleanser. Only 1 type may be used for the said component G, and 2 or more types may be used for it.

Examples of component G include mono-fatty acid polyethylene glycols such as polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol monooleate; polyethylene glycol dilaurate, polyethylene glycol distearate, polyethylene glycol diisostearate And difatty acid polyethylene glycol such as polyethylene glycol dioleate. Among these, monofatty acid polyethylene glycol is preferable from the viewpoint of enhancing foam quality and foaminess.

The fatty acid in Component G is not particularly limited, but 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 fatty acid having 12 to 18 carbon atoms. The average number of added moles of ethylene oxide in Component G is not particularly limited, but is preferably 100 to 300, more preferably 120 to 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, from the viewpoint of enhancing foam quality and foaminess. Preferably, it is 0.5 to 1.5% by mass. When the content is 0.05% by mass or more, the foam quality and foaminess are further improved, and when the content is 3.0% by mass or less, the foam is not too hard and the foam is appropriate. It tends to be elastic and is preferable. The above content is the total content of all components G contained in the stock solution.

The stock solution is not particularly limited. For example, surfactants (anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, etc.); fragrances; ethanol; cyclopentasiloxane, hydrogen dimethicone, caprylyl Silicone oils such as methicone and dimethicone; fatty acid ester oils such as isopropyl myristate, ethylhexyl palmitate and cetyl 2-ethylhexanoate; higher alcohols; vegetable oils; preservatives such as phenoxyethanol, octoxyglycerin and methylparaben; menthol, menthyl glyceryl ether , Camphor, peppermint oil and other cooling agents; anti-inflammatory agents such as dipotassium glycyrrhizinate and stearyl glycyrrhizinate; plant extract extracts such as peony, buttonpi, loquat and aloe; carboxyvinyl polymer , Alkyl-modified carboxyvinyl polymers and other thickening polymers; antioxidants such as tocopherol and dibutylhydroxytoluene; whitening agents such as arbutin and ascorbic acid; powders such as silica, talc and nylon powder; lavender oil and orange oil And may contain an amino acid and / or an amino acid derivative such as N-acetyl-L-hydroxyproline (however, components other than components A to G).

The stock solution may contain a higher alcohol having 12 to 22 carbon atoms. The carbon number of the higher alcohol is more preferably 14-18. The higher alcohol has the effect of further improving the foam quality. Although it does not specifically limit as said higher alcohol, For example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, octyldodecanol, oleyl alcohol etc. are mentioned. Among these, 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.

The content of the higher alcohol in 100% by mass of the stock solution is preferably 0.05 to 0.5% by mass, more preferably 0.1 to 0.3% by mass, and further preferably 0.1 to 0.2% by mass. % By mass. When the content is 0.05% by mass or more, the foam quality is further improved, and when the content is 0.2% by mass or less, the risk of precipitation of higher alcohol can be further suppressed. . The content is the total content of all the higher alcohols contained in the stock solution.

The stock solution may contain a nonionic surfactant other than Component B and Component C from the viewpoint of facilitating emulsification of the propellant into the stock solution and further improving stability over time and foam quality. Examples of the nonionic surfactant include alkyl glyceryl ether, polyoxyalkylene alkyl ether, polyoxyalkylene hydrogenated castor oil, glycol fatty acid ester, polyoxyalkylene glyceryl ether fatty acid ester, sorbitan fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, silicone interface An active agent etc. are mentioned.

As the nonionic surfactant, from the viewpoint of improving emulsification properties, a nonionic surfactant having an HLB (hydrophile-lipophile balance) value of 4.5 to 9.0, and an HLB value of 9.5 to 19.0 is used. A combination with a nonionic surfactant is preferred. Examples of the nonionic surfactant having an HLB value of 4.5 to 9.0 include sorbitan fatty acid esters such as coconut oil fatty acid sorbitan. Examples of the nonionic surfactant having an HLB value of 9.5 to 19.0 include, for example, polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monostearate; polyoxyethylene such as polyoxyethylene glyceryl monostearate Examples include glycerin fatty acid esters; polyoxyethylene alkyl ethers such as polyoxyethylene cetyl ether; and polyoxyethylene hydrogenated castor oil.

The content of the nonionic surfactant in 100% by mass of the stock solution is preferably 0.1 to 5.0% by mass, more preferably 0.5 to 3.0% by mass from the viewpoint of maintaining foaming power. More preferably, it is 0.5 to 2.0% by mass. The content is the total content of all the nonionic surfactants contained in the stock solution.

Although the stock solution is not particularly limited, it is preferable that the higher fatty acid and the higher fatty acid salt are not included or a small amount is included in the case of obtaining the characteristics of reducing eye irritation and feeling of feeling of washing after washing. . Specifically, the total amount of the higher fatty acid content and the higher fatty acid salt content in 100% by mass of the stock solution is preferably 0.1% by mass or less (ie, 0 to 0.1% by mass), More preferably, it is 0.01 mass% or less. By containing substantially no higher fatty acid or higher fatty acid salt, it is preferable because the irritation to the eyes and the feeling of skin firmness after face washing can be further reduced. In addition, since there is no risk of clogging of the injection port of the aerosol container due to the precipitation of the higher fatty acid salt, it becomes unnecessary to separately add a component for suppressing the precipitation, which is advantageous in terms of quality design and cost.

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 such as olive oil, coconut oil, palm oil, and cottonseed oil Animal oils such as fish oil and beef tallow. Examples of the salt in the higher fatty acid salt include alkali metal salts such as sodium salt and potassium salt; alkanolamine salts such as monoethanolamine salt, diethanolamine salt and triethanolamine salt.

The stock solution can be produced by a conventional method. For example, the above-mentioned constituent components are mixed and a known method, specifically, a method of stirring with a homomixer or the like can be 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. . The said propellant may use only 1 type and may use 2 or more types. From the viewpoint of easy adjustment of the internal pressure of the aerosol container, the propellant preferably contains liquefied petroleum gas.

Examples of the liquefied petroleum gas include propane, butane, isobutane, and isopentane. 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, since the irritation to the skin is small, the liquefied petroleum gas preferably contains isobutane. The content of isobutane in 100% by volume of the liquefied petroleum gas is preferably 80.0% by volume or more, more preferably 90.0% by volume or more.

The content of the liquefied petroleum gas in a total amount of 100% by mass of the stock solution and the propellant is preferably 1.0 to 10.0% by mass, more preferably 1.0 to 8.0% by mass. .

The propellant preferably contains carbon dioxide gas together with liquefied petroleum gas from the viewpoint of obtaining smooth foam quality. Normally, as the amount of isobutane in the liquefied petroleum gas increases, the internal pressure of the aerosol container becomes more difficult to increase.In the present invention, even when liquefied petroleum gas having a large amount of isobutane is used by using carbon dioxide gas in combination, The internal pressure can be increased to increase the discharge momentum.

The content of the carbon dioxide gas in the total amount of 100% by mass of the stock solution and the propellant is preferably 0.1 to 2.0% by mass, more preferably 0.1 to 1.5% by mass.

The content of the propellant in the total amount of the stock solution and the propellant of 100% by mass is preferably 1.1 to 12.0% by mass, more preferably 1.1 to 9.5% by mass.

The foam skin cleanser 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 and usual aerosol spray container can be used.

The foam skin cleanser of the present invention uses N-acylamino acid (component A), which has excellent foaming power, low irritation, and does not easily give a feeling of being washed up, as a main cleaning component. However, there is a problem that Component A is insufficient in terms of the formation of a dense and creamy foam as compared with the higher fatty acid soap.
In order to solve the above problem, in the present invention, polyglycerol fatty acid ester (component B) and monoglycerol fatty acid ester (component C) are used in combination. Component B has a relatively bulky hydrophilic group. Thereby, it is estimated that the curvature of the micelle to be formed increases when the component B is oriented at the gas-liquid interface during foam formation of the foam skin cleanser, but fine foam can be formed. On the other hand, since component C has a relatively compact hydrophilic group, the interface is stabilized by aligning in the gap between component A and component B at the gas-liquid interface of the micelle in which component A and component B are aligned. It is presumed that the film strength of the foam is improved, but the persistence of the foam (foam stickiness) is improved.
In addition, xanthan gum and / or cellulose thickener (component D), which is a water-soluble thickener, increases the viscosity of the foam liquid film, strengthens the foam film, makes the formed foam difficult to collapse, Has improved. Furthermore, it is estimated that the polyhydric alcohol (component E) is present in the water between the micelles, and stabilizes the micelles by interacting with the hydrophilic group of the component B that forms the micelles. Improve quality. The moisturizing effect also contributes to a moist feeling after washing.
In addition, since the polyethylene glycol fatty acid ester (component G) has a relatively large hydrophilic group like the component B and further has a thickening effect, when it is added, the foam quality and foaminess are further increased. Can be improved.

The foam skin cleanser of the present invention is a skin cleanser used for cleaning the skin such as the face. Examples of the foam skin cleanser of the present invention include face wash, hand soap, body soap and scalp cleanser. Since the foam-like skin cleansing material of the present invention can discharge dense and creamy foam, it is particularly suitable for a delicate cleansing material such as a facial cleanser. In addition, since it is excellent in foaminess even in the presence of water, it can be suitably used in a highly humid environment such as a bathroom, or cleaning or massage in a state where moisture adheres to a hand or a cleaning part.

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 33 and Comparative Examples 1 to 5
Fill the aerosol container (φ35mm × 105mm, aluminum can, full container volume: 91ml) with stock solution consisting of the composition shown in the table, clinch the aerosol valve into the container, and then fill the propellant from the stem. A spout was attached to obtain a foam skin cleanser. The total amount of the stock solution and the propellant filled in the aerosol container was 40 g. The propellant was a mixture of LPG (isobutane 100%) and carbon dioxide, and the mass ratio of LPG and carbon dioxide was 3.0: 0.5 (LPG: carbon dioxide). The mass ratio of the stock solution to the propellant was 96.5: 3.5 (stock solution: propellant).

Details of each raw material in Examples and Comparative Examples are as follows. In addition, the amount described in the table is not the amount of merchandise but the amount of each component (amount of active ingredient).

N-lauroyl-L-sodium aspartate: Asahi Kasei Chemicals, trade name “Amino Surfact FLDS-L”
N-coconut oil fatty acid acyl-L-glutamate sodium: manufactured by Asahi Kasei Chemicals Corporation, trade name “Amino Surfact ACDS-L”
Decaglyceryl monomyristate: Aoki Yushi Kogyo Co., Ltd., trade name “Glysurf 10MM”
Decaglyceryl monolaurate: manufactured by Nippon Surfactant Kogyo Co., Ltd., trade name “DECAGLYN1-L”
Glyceryl monolaurate: manufactured by Taiyo Chemical Co., Ltd., trade name “Sunsoft No. 750-C”
Glyceryl monocaprylate: manufactured by Taiyo Chemical Co., Ltd., trade name “Sunsoft No. 700P-2-C”
Glyceryl monocaprate: manufactured by Taiyo Chemical Co., Ltd., trade name “Sunsoft No. 760-C”
Xanthan Gum: DSP Gokyo Food & Chemical Co., Ltd., trade name “Echo Gum T”
Hydroxyethyl cellulose: manufactured by Daicel Corporation, trade name “HEC Daicel SE400”
Glycerin: Sakamoto Pharmaceutical Co., Ltd., trade name “Concentrated Glycerin for Cosmetics”
Dipropylene glycol: Product name “dipropylene glycol S” manufactured by Shell Chemicals Japan
Polyethylene glycol: Sanyo Chemical Industries, trade name “PEG-1500”, number average molecular weight 1500
Polyethylene glycol monostearate: trade name “Emanon 3199VB” manufactured by Kao Corporation, 150 moles of added ethylene oxide
Myristyl alcohol: product name “Calcoal 4098” manufactured by Kao Corporation
Coconut oil fatty acid sorbitan: product name “Leodol Super SP-L10” manufactured by Kao Corporation
Polystearic acid polyoxyethylene sorbitan: manufactured by Kao Corporation, trade name “Leodol TW-S120V”

With respect to the foam skin cleansing materials prepared in Examples 1 to 33 and Comparative Examples 1 to 5, “foaming power”, “foam quality (whether it is dense and creamy foam)”, “foam stickiness” are as follows. (Foam persistence) "was evaluated. The evaluation was conducted by three expert evaluators.

Test Example 1: Evaluation of foaming power and foam quality The foam-like skin cleansing materials of each Example and each Comparative Example were discharged for 1 second onto Kim Towel (Folded Type: Nippon Paper Crecia Co., Ltd.).
Ten seconds after the discharge, the foam formability and the formed foam were visually confirmed and evaluated according to the following criteria. The evaluation results are listed in the table.

<Evaluation criteria for foaming power>
○ (Good): Bubbles were formed in a dome shape.
X (defect): Foaming was insufficient and bubbles were not formed in a dome shape.

<Evaluation criteria for foam quality>
○ (Good): Fine bubbles were formed uniformly and at a high density, and the appearance was generally creamy.
X (Poor): Relatively large bubbles were observed 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 gluten Immediately after the evaluation in Test Example 1, purification was performed by filling a pump container (spray discharge amount: 0.5 mL / 1 push) from a distance of about 20 cm from the upper end of the foam formed into a dome shape Two pushes of water were sprayed on the entire foam, and after 30 seconds, the foam was visually confirmed and evaluated according to the following criteria. The evaluation results are listed in the table.

<Evaluation criteria for foaming>
○ (good): The foam shape immediately after discharge was maintained.
○ (good): The foam shape immediately after discharge was clearly broken.

Test Example 3: Evaluation of Usability Furthermore, the “feel of use” was evaluated by the following method for the foam skin cleansing materials prepared in Examples 1 to 33. The evaluation was conducted by three expert evaluators.
The foam skin cleanser of each Example and each Comparative Example was discharged into the palm for 2 seconds, and the face was washed with the discharged foam. The feeling of use was evaluated from the feel of the skin after washing the face.
As a result, no eye irritation was felt when all the foam skin cleansing agents of Examples 1 to 33 were used. In addition, when the foamed skin cleansing materials of Examples 1 to 5, 7 to 11, 13 to 17, 19 to 23, 25 to 27, and 29 to 33 were used, the feeling of washing off the dirt and the lack of tension It was a good washout that was compatible. On the other hand, the foamed skin cleansing agents of Examples 6 and 18 had a strong degreasing power, a slightly refreshing feeling on the skin after washing the face, and a feeling of being slightly felt. On the other hand, when the foam-like skin cleansing materials of Examples 12, 24, and 28 were used, the skin after the face was slightly sticky or sticky.

The formulation example of the foam skin cleansing material of the present invention is shown below.

Formulation Example 1 (face wash)
(Stock solution)
L-menthol 0.1% by mass
Isopropyl methylphenol 0.1% by mass
Dipotassium glycyrrhizinate 0.1% by mass
Xanthan gum 0.3% by mass
N-lauroyl-L-sodium aspartate 3.0% by mass
Glycerin 15.0% by mass
Sorbitol 5.0% by mass
Polyethylene glycol (PEG1500) 5.0% by mass
Polyoxyethylene hydrogenated castor oil 0.5% by mass
Palm oil fatty acid sorbitan 0.2% by mass
Cetanol 0.2% by mass
Decaglyceryl monolaurate 4.0% by mass
Glyceryl monolaurate 1.5% by mass
Sodium hyaluronate 0.1% by mass
Glycerin mono 2-ethylhexyl ether 0.1% by mass
Fragrance 0.1% by mass
Purified water balance 100% by mass
(Propellant)
LPG (isobutane 100%) 86.0% by mass
Carbon dioxide 14.0% by mass
Total 100% by mass
Stock solution / propellant (mass ratio) = 97/3

Formulation Example 2 (Body Cleaner)
(Stock solution)
L-menthol 0.1% by mass
N-coconut oil fatty acid acyl-sodium L-glutamate 5.0 mass%
Myristic acid 0.1% by mass
Polyethylene glycol monostearate 0.5% by mass
Palm oil fatty acid sorbitan 0.5% by mass
Polyoxyethylene sorbitan monostearate 1.0% by mass
Hydroxyethyl cellulose 0.3% by mass
Cha Extract 3.0% by mass
Dipropylene glycol 5.0% by mass
Glycerin 5.0% by mass
1,3-butylene glycol 5.0% by mass
Phenoxyethanol 0.1% by mass
Decaglyceryl monomyristate 5.0% by mass
Glyceryl monocaprylate 0.5% by mass
Lavender oil 0.1% by mass
Purified water balance 100% by mass
(Propellant)
LPG (propane 1% by mass / butane 99% by mass, vapor pressure at 20 ° C .: 0.39 MPa)
100% by mass
Stock solution / propellant (mass ratio) = 95/5

Formulation Example 3 (Body Cleaner)
(Stock solution)
N-coconut oil fatty acid acyl-sodium L-glutamate 5.0 mass%
Polyethylene glycol monolaurate 1.0% by mass
Palm oil fatty acid sorbitan 0.5% by mass
Polyoxyethylene cetyl ether (ceteth-20) 1.0% by mass
Xanthan gum 0.3% by mass
Aloe extract 0.1% by mass
Licorice extract powder 0.1% by mass
Glycerin 20.0% by mass
Dipropylene glycol 5.0% by mass
Maltitol 5.0% by mass
1,2-octanediol 0.1% by mass
Decaglyceryl monolaurate 4.0% by mass
Glyceryl monocaprate 2.0% by mass
Orange oil 0.1% by mass
Purified water balance 100% by mass
(Propellant)
LPG (isobutane 100%) 86.0% by mass
Carbon dioxide 14.0% by mass
Total 100% by mass
Stock solution / propellant (mass ratio) = 96/4

The foam skin cleanser of the present invention is preferably used as a cleanser for face wash, hand soap, body soap, scalp and the like.

Claims

A foam-like skin cleansing agent in which an undiluted solution and a propellant are filled in an aerosol container, wherein the undiluted solution comprises the following component A, component B, component C, component D, component E, and component F below. A foam-like skin cleanser characterized by containing.
Component A: N-acyl amino acid salt Component B: Polyglycerol fatty acid ester Component C: Monoglycerol fatty acid ester Component D: Xanthan gum and / or cellulose thickener Component E: Polyhydric alcohol Component F: Water
In the stock solution, the content of the component A is 0.5 to 15.0% by mass, the content of the component B is 0.1 to 15.0% by mass, and the content of the component C is 0.1 to 10.0% by mass, the content of Component D is 0.05 to 2.0% by mass, the content of Component E is 3.0 to 40.0% by mass, and the content of Component F is 18.0 The foam skin cleanser according to claim 1, which has a content of 96 to 25% by mass.
The foam skin cleanser according to claim 1 or 2, wherein the stock solution further contains the following component G.
Component G: Polyethylene glycol fatty acid ester
The foam skin cleanser according to claim 3, wherein the content of the component G in the stock solution is 0.05 to 3.0% by mass.
5. The stock solution according to claim 1, wherein the stock solution does not contain a higher fatty acid and a higher fatty acid salt, or the total amount of the higher fatty acid content and the higher fatty acid salt content in the stock solution is 0.1% by mass or less. The foam-like skin cleansing material according to any one of the above.
The foam skin cleanser according to any one of claims 1 to 5, wherein the propellant contains liquefied petroleum gas.
The foam skin cleanser according to any one of claims 1 to 6, wherein the propellant further contains carbon dioxide gas.