KR101444502B1 - Detergent for the skin and method for cleansing the skin with the same - Google Patents

Abstract

An object of the present invention is to provide an excellent skin cleansing agent and a skin cleansing method which are capable of suppressing drying of the skin after cleansing because the foaming property of the foam is fine and fine, do. That is, the present invention relates to a cosmetic composition containing (A) at least one of a betaine-based amphoteric surfactant, (B) an N-acylmethyltaurine salt, (C) at least one of polyoxyethylene alkylsulfosuccinate and alkylsulfosuccinate, (C) / [(A) + (B)] = 0.05 to 0.5, and the skin cleansing method using the skin cleansing agent.

Description

TECHNICAL FIELD The present invention relates to a skin cleansing method and a skin cleansing method using the same,

More particularly, the present invention relates to a skin cleansing agent and a skin cleansing method using the same. More specifically, the present invention relates to a skin cleansing agent and a skin cleansing method using the same, And to a skin cleaning method using the skin cleansing agent.

BACKGROUND ART Conventionally, as a cleaning main component of a skin cleansing agent, a higher fatty acid salt, a polyoxyethylene alkyl ether sulfate, a monoalkyl phosphate, or the like is known. Among them, from the viewpoints of feeling of use and texture of foamy foam, Fatty acid salts are widely used.

However, when a high-grade fatty acid salt is used, there is a problem such that the grain quality is not sufficiently fine and fine, the crystal precipitation tends to occur easily, and the discharging property from the vessel is poor when filled in a former container There is a problem, such as giving a dry feeling to the skin after washing.

In order to solve such problems, various techniques have been conventionally reported. For example, at least one of an N-acyl amino acid type anionic surfactant, other anionic surfactant, and a positive surfactant and a semipolar surfactant A detergent composition containing a compound and a polyhydric alcohol (Patent Document 1), a detergent composition containing laurate, myristate, and parmitate in a specific mass ratio (Patent Document 2), an anionic surfactant and / Or a detergent composition containing a positive surfactant, a water-insoluble particle and a nonionic surfactant (Patent Document 3), a lauric acid alkaline amino acid salt and a myristic acid alkaline amino acid salt at a specific mass ratio, (Patent Document 4), alkyl sulfo succinate and / or sulfo succinic acid polyoxyethylene alkyl salt, betaine type positive A surfactant, an alkyl acrylate / methacrylate copolymer, a detergent composition containing a higher fatty acid salt and a powder (patent document 5), a sulfo-ampholytic anionic surfactant, an N- acyl acidic amino acid anionic surfactant and a betaine-type positive interface A detergent composition containing at least one of an active agent, a dispersion of a fatty acid glycol ester, a conditioning component and water (Patent Document 6); a cleansing composition containing a specific acyllactylazo and a specific surfactant in a specific mass ratio (Patent Document 8), which contains an anionic surfactant and an amphoteric surfactant, oil and water at a specific mass ratio (Patent Document 8); at least an N-acylcarboxylic acid type surfactant and an N-acylsulfonic acid type surfactant Either or both of the amphoteric surfactant, the bifunctional surfactant and the anti-polarizing surfactant, the alkylglycol polyalcohol A detergent composition containing a terpolymer and at least one of ethyl alcohol, glycerin, propylene glycol and dipropylene glycol in a specific mass ratio (Patent Document 9), an acyl methyl taurine salt type anionic surfactant and an alkylamide amino acid salt type positive At least one of the alkyl betaine type amphoteric surfactant and the alkyl amide betaine type amphoteric surfactant, at least one of the activator and the alkyliminodicarboxylic acid salt type amphoteric surfactant, the detergent composition containing the water-soluble divalent alcohol in a specific mass ratio (Patent Document 10), detergent compositions containing anionic surfactants, amphoteric surfactants and sucrose fatty acid esters in a specific mass ratio (Patent Document 11) have been reported.

However, even in the above-described techniques, there is no skin cleansing agent that is excellent in fine detailing of the foam quality, dischargeability of foam at low temperature when the foam container is filled, and drying of the skin after cleaning, It is desired to provide an excellent skin cleanser which is capable of satisfactorily discharging bubble at low temperature and suppressing drying of the skin after cleansing when the foam is packed in a former container.

Patent Document 1: Japanese Patent Application Laid-Open No. 2006-183039

Patent Document 2: Japanese Patent Application Laid-Open No. 2005-154651

Patent Document 3: Japanese Patent Application Laid-Open No. 2005-187411

Patent Document 4: JP-A-1-238521

Patent Document 5: JP-A-2006-169453

Patent Document 6: JP-A-2005-289823

Patent Document 7: JP-A-6-40850

Patent Document 8: Japanese Patent Application Laid-Open No. 7-25726

Patent Document 9: Japanese Patent Application Laid-Open No. 2005-146016

Patent Document 10: Japanese Patent Application Laid-Open No. 2006-206720

Patent Document 11: Japanese Patent Application Laid-Open No. 2007-138023

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has an object of providing an excellent skin cleansing composition capable of suppressing the drying of the skin after cleansing, And a skin cleansing method using the skin cleansing agent.

The present inventors have intensively studied in order to achieve the above object, and as a result, they have found that (A) a betaine type amphoteric surfactant, (B) an N-acylmethyltaurine salt, (C) a polyoxyethylene alkylsulfo succinic acid salt, (A) + (B) at a specific ratio, the foaming quality of the foam is finer and finer, and when the foaming agent is filled in the foam container, And the drying of the skin after washing can be suppressed can be obtained. The present invention has been accomplished based on this finding.

Therefore,

≪ 1 > A positive active agent composition comprising (A)

(B) an N-acyl methyl taurine salt,

(C) / ((A) + (B)] = 0.05 to 0.5 (C) at least one of the polyoxyethylene alkylsulfosuccinate and the alkylsulfosuccinate, And the like.

<2> The skin cleansing agent according to <1>, which is filled in a foam container.

&Lt; 3 > A skin cleansing method characterized by using the skin cleansing agent according to any one of <1> and <2>.

&Lt; 4 > A skin cleansing method according to the above-mentioned < 3 &gt;, wherein the skin cleansing agent in a foamy state (foamy state) discharged from the container is applied to the skin by hand and washed.

According to the present invention, it is possible to provide an excellent skin cleansing composition which is fine and fine in foam quality and which is excellent in discharging property of foam when it is filled in a former container at low temperature and which can suppress drying of the skin after cleansing, Thereby providing a method of cleaning the used skin.

(Skin cleaning fee)

The skin cleansing composition of the present invention comprises at least one of (A) a betaine-based amphoteric surfactant, (B) an N-acylmethyltaurine salt, (C) a polyoxyethylene alkylsulfoamphosphate salt, And is contained in a specific mass ratio and optionally contains other arbitrary components as required.

&Lt; Component (A) >

Examples of the betaine-based amphoteric surfactant (component (A)) are not particularly limited and may be appropriately selected according to the purpose. Examples thereof include imidazoline type (amide amine type), amide amino acid salt, Betaine, alkylamide betaine), sulfobetaine (alkylsulfobetaine, alkylhydroxysulfobetaine), and the like.

Examples of the imidazoline type include stearoylamidoamine, palm oil alkyl-N-hydroxyethylimidazolinium betaine, and the like. Examples of the above-mentioned carbo betaine include alkylamide betaine such as lauryldimethylaminoacetic acid betaine, palm oil alkyldimethylaminoacetic acid betaine, and stearyldimethylaminoacetic acid betaine as the alkyl betaine, and palm oil fatty acid amide propyl betaine , Lauric acid amide propyl betaine, and the like. Examples of the sulfobetaine include alkylsulfobetaines such as palm oil fatty acid dimethylsulfopropyl betaine, alkyl hydroxysulfobetaines such as palm oil fatty acid dimethylaminohydroxysulfobetaine, lauryldimethylaminohydroxysulfobetaine Etc., and laurylhydroxysulfobetaine.

Among them, as the above-mentioned component (A), a beta-type amphoteric surfactant having a carbo betaine type and a monocyclic hydrocarbon group having 12 to 18 carbon atoms as the alkyl ring is preferable, and among these, And a betaine-based amphoteric surfactant having a hydrocarbon group is more preferable.

The component (A) may be used singly or in combination of two or more.

The content of the component (A) is not particularly limited and can be appropriately selected according to the purpose. Among them, the content is preferably 2 to 20% by mass, more preferably 5 to 15% by mass in the skin cleansing composition. If the content is less than 2% by mass, the fine texture of the foamy material may be insufficient. When the content is more than 20% by mass, drying of the skin after washing is inhibited. On the other hand, if the content is within a more preferable range, it is advantageous in that the foamy texture can provide a superior skin cleansing agent in removing fine skin and drying of the skin after cleansing.

&Lt; Component (B) >

The N-acylmethyltaurine salt (component (B)) is not particularly limited and may be appropriately selected according to the purpose. It is preferable that the acyl group has a monovalent hydrocarbon group having 5 to 21 carbon atoms, , And more preferably a monovalent hydrocarbon group having 11 to 15 carbon atoms. When the carbon number of the acyl group is within the more preferable range, it is advantageous in that it is possible to provide a superior skin cleansing agent for discharging foam at low temperature when filled in a foam container.

The salt is preferably an alkali metal salt, an alkaline earth metal salt, an amine salt, or an amino acid salt, and among these, an alkali metal salt such as sodium, potassium, or a substituted or unsubstituted ammonium salt is more preferable. Among them, a sodium salt is particularly preferable. If the salt is a sodium salt, it is advantageous in that it can provide a better skin cleanser to the mildness of the skin.

Specific examples of the component (B) include N-lauroylmethyltaurine salt, N-methylstilmithrine salt, N-palmittylmethyltaurine salt, N-stearoylmethyltaurine salt, Taurine salt, N-coconut oil fatty acid methyl taurate salt and N-decanoyl methyl taurine salt, among which N-coconut oil fatty acid methyltaurin sodium is particularly preferable.

The component (B) may be used singly or in combination of two or more.

The content of the component (B) is not particularly limited and may be appropriately selected according to the purpose. Among them, 0.5 to 10 mass% is preferable, and 1 to 5 mass% is more preferable in the skin washing raw material. If the content is less than 0.5% by mass, the fineness of the foamy substance may become insufficient. If the content is more than 10% by mass, it is not preferable from the viewpoint of dischargeability of the foam at low temperature when filled in a former container. On the other hand, if the above content is within a more preferable range, it is advantageous in that a fine skin texture of the foamy material can provide a superior skin cleansing agent in discharging foams at low temperatures when filled in a formatter container.

&Lt; Component (C) >

At least either of the polyoxyethylene (hereinafter may be abbreviated as POE) alkylsulfoamphocarboxylic acid salt and the alkylsulfoamphocarboxylic acid salt (component (C)) is not particularly limited and may be appropriately selected depending on the purpose. As the alkyl ring (chain), those having a monovalent hydrocarbon group having 12 to 22 carbon atoms are preferable, and among them, monovalent hydrocarbon groups having 12 to 14 carbon atoms are more preferable. When the carbon number of the alkyl ring is less than 12, it is not preferable from the standpoint of skin irritation. When the number of carbon atoms is more than 22, it is not preferable from the viewpoint of discharging property of foaming at low temperature when filled in a formatter container. On the other hand, when the number of carbon atoms in the alkyl ring is within a more preferable range, it is advantageous in terms of providing mildness to the skin and providing superior skin cleansing properties in discharging foams at low temperatures when filled in a foam container .

The salt is preferably an alkali metal salt, an alkaline earth metal salt, an amine salt, or an amino acid salt, and among these, an alkali metal salt such as sodium, potassium, or a substituted or unsubstituted ammonium salt is more preferable. Among them, a sodium salt is particularly preferable. If the salt is a sodium salt, it is advantageous in that it can provide a better skin cleanser to the mildness of the skin.

The number of moles of ethylene added to the polyoxyethylene alkylsulfoamphosarphate is preferably 1 to 10, more preferably 2 to 5. When the number of moles of ethylene added is less than 1, it is not preferable from the viewpoint of dischargeability of foams at low temperatures when filled in a former container. When the number of moles is more than 10, foams are not preferable from the viewpoint of fine fineness. On the other hand, if the number of moles of ethylene added is within a more preferable range, the dischargeability of the foam and the texture of the foamy substance at the time of filling at low temperature in the formatter container can be improved, Do.

As the component (C), a polyoxyethylene alkylsulfo succinic acid salt is preferable.

Specific examples of the component (C) include POE (1) alkyl (12-14) sulfo succinate, POE (2) alkyl (12-14) sulfo amphosulfate, POE (3) POE (12) to 14) sulfo amphosulphate, POE (7) dialkyl (12 to 14) sulfo amphosulfate, POE (9) dialkyl (2) monooleylamide salt, POE (4) coconut oil fatty acid isopropanolamide sulfo amphosulfate, sulfo succinic acid POE (5) lauroyl ethyl alcohol Among them, POE (2) alkyl (12 to 14) is preferred. Among them, POE (2) alkyl (12 to 14) Disodium sulfo succinate is preferred.

The component (C) may be used singly or in combination of two or more.

The content of the component (C) is not particularly limited and may be appropriately selected depending on the purpose. Among them, the content is preferably 1 to 7% by mass, more preferably 1.5 to 6% by mass in the skin cleansing agent. When the content is less than 1% by mass, it is not preferable from the viewpoint of dischargeability of foams at low temperatures when filled in a former container. When the content is more than 7% by mass, drying of the skin after washing is inhibited. On the other hand, if the content is within a more preferable range, it is advantageous in that a better skin cleansing agent can be provided in order to eliminate the discharge property of foam and the drying of the skin after cleaning at low temperature when filled in a former container .

<Content ratio>

The content ratio of each of the components (A) to (C) is 0.05 to 0.5, preferably 0.1 to 0.4, and more preferably 0.15 to 0.4, in terms of the mass ratio of (C) / desirable. When the mass ratio is less than 0.05, it is insufficient in terms of dischargeability of foams at low temperatures when filled in a former container. When the mass ratio is more than 0.5, drying of the skin after washing is inhibited. On the other hand, if the mass ratio is within a more preferable range, it is advantageous in that a better skin cleansing agent can be provided in order to eliminate the discharge property of the foam and the drying of the skin after cleaning at a low temperature when filled in a former container .

<Optional ingredients>

In the skin cleansing composition of the present invention, in addition to the components (A) to (C) described above, optional components may be blended to the extent that the effect of the present invention is not impaired. The above-mentioned optional components can be appropriately selected from among those usually used for skin cleansing agents. For example, except for the components (B) and (C), anionic surfactants such as polyoxyethylene alkyl ether sulfate, , Nonionic surfactants such as polyoxyethylene alkyl ethers, amphoteric surfactants other than the above component (A), alcohols such as oils, silicones, lower or higher alcohols, lanolin derivatives, protein derivatives, acrylic resin dispersions, An antiseptic, a metal blocker, an ultraviolet absorber, an animal or plant extract or a derivative thereof, a pigment, a flavor, a pigment, an inorganic powder, a clay mineral , Water-insoluble polymer powders such as nylon and polyethylene, propylene glycol, ethyl alcohol, glycerin, water and the like.

<Manufacturing>

The method for producing the skin cleansing composition of the present invention is not particularly limited and can be appropriately selected according to the purpose. For example, the components (A) to (C) % By mass), based on the total amount of the components. The device for preparing the skin cleansing material is not particularly limited and may be appropriately selected depending on the purpose. Among them, an agitation device having a plurality of stirring blades (propeller, turbine, dipera, etc.) . The components (A) to (C) and optional components may be used alone or in the form of a mixture containing two or more components in preparation of the skin cleansing composition.

<Container>

INDUSTRIAL APPLICABILITY The skin cleansing agent of the present invention suppresses precipitation at a low temperature and is very suitable as a skin cleansing agent for filling a foam container in which a skin cleansing agent is discharged in the form of a foam. Therefore, the container filled with the skin cleanser of the present invention is not particularly limited, but is preferably a foam container, and the skin cleanser may be a skin cleanser product filled with the skin cleanser, It is also very suitable as a liquid detergent product with a container and a skin cleanser filled in the former container.

Examples of the foam container include a non-gaseous foam discharge container. The non-gaseous foam discharge container is not particularly limited as long as it is capable of mixing the skin cleansing agent with air and discharging it in a foamed state. For example, the foamed body can be squeezed by a squeeze A former container, and a pump former container capable of discharging foam by pressing down the nozzle portion, and can be appropriately selected according to the purpose. As such a former container, for example, a container made by Yamato Kagaku Kogyo Co., Ltd. or Yoshino Kogyo Co., Ltd. can be used.

The non-gas type foam discharge container usually has a porous membrane body (the material is preferably a plastic material such as nylon, polyester or polyolefin) for forming foam, and the skin washing agent passes through the porous membrane body, Bubbles are formed. The mesh of the porous membrane body is not particularly limited and can be appropriately selected according to the purpose. For example, 100 mesh or more is preferable, 100 to 400 mesh is more preferable, and 200 to 350 mesh is particularly preferable. The number of the porous membrane bodies is not particularly limited and can be appropriately selected according to the purpose. Two or four sheets are preferable from the viewpoint of improving the foam performance.

More specifically, as the above-mentioned former container, a former container described in Japanese Patent Application Laid-Open No. 7-315463, Japanese Patent Application Laid-Open No. 8-230961 and Japanese Patent Laid-Open No. 2005-193972 can be used.

<Appearance>

The skin cleansing agent of the present invention is preferably in a liquid state at room temperature.

As the viscosity of the skin cleansing material, it is possible to use, when using a former container, more specifically, for example, a pump former container capable of ejecting foam by pressing down the nozzle portion, Is preferably 15 mPa · s or less and more preferably 1 to 10 mPa · s under the temperature condition to be used. The viscosity is a value measured by a BL type viscometer (rotor No. 1, 60 rpm, after one minute / manufactured by Tokyo Meter Co., Ltd.).

In addition, if the skin cleanser is used in a bathroom or the like, steam or water may be mixed into the pump portion. The pH (25 캜) of the skin cleansing agent is preferably 4 to 6 in terms of flotation power, because the skin cleansing agent may be diluted when the skin cleansing agent remains in the pump portion.

It is also possible to apply the above-mentioned skin cleansing material to a hand-applied cleanser (hereinafter, referred to as &quot; hand-cleansing &quot; It is necessary that the foam discharged from the foam container does not immediately disappear (bubble retention is good), and that it is easy to apply on the skin. Therefore, in this case, the viscosity (foam viscosity) of the skin cleansing agent in the form of a foam is preferably about 2500 to 3100 mPa · s. If the foam viscosity is more than 3100 mPa · s, it is not preferable since the foam quality becomes slightly coarse. On the other hand, if the foam viscosity is within a preferable range, it is advantageous in that it is possible to provide a skin cleanser which is good in bubble persistence and is very suitable for hand washing. The foam viscosity is a value measured at 25 캜 by using a B-type viscometer (NO2, rotation number 60 rpm, 30 seconds / manufactured by Tokyo Meter Co., Ltd.) according to the viscosity measurement method of the Japanese Pharmacopoeia General Test Methods .

<Applications>

The use of the skin cleansing agent of the present invention is not particularly limited and can be applied to, for example, a body soap, a hand soap, and a three-pigment. Among them, the skin cleansing agent of the present invention is excellent in that the texture of the foamy substance is fine and fine and does not cause dryness of the skin after cleansing, and the skin is sensitive to sensitive skin such as infants, young women, It is very suitable as a skin cleanser for human skin.

(Skin cleansing method)

The skin cleansing method of the present invention is characterized by using the above-described skin cleansing agent of the present invention.

The skin cleansing method is not particularly limited and can be appropriately selected according to the purpose. For example, the liquid cleansing agent may be applied to a cleanser such as a sponge or a nylon towel by foaming the cleanser , A method of cleaning the skin, a method of spraying the skin cleanser filled in the above-mentioned foam container with the foam, applying the above-described foam to the skin by hand or using a cleaning implement, . Among these methods, the latter is preferable as the above-mentioned skin cleansing method, and a method of applying (spraying) the above-described discharge foam to the skin by hand and washing is particularly preferable.

In the above-described skin cleansing method, the part of the skin to be cleaned is not particularly limited, and a whole body including a face and limbs can be a subject to be cleaned.

As a conventional skin cleansing method, generally, about 3 g of a liquid cleansing liquid is taken in a sponge or a nylon towel to wash the whole body. However, if the cleansing agent is not easily used in view of usability, There is a problem such that drying of the skin after washing and increase of transdermal water volume increase occur.

However, as the skin cleansing method of the present invention, it is preferable that the skin cleansing material is filled in a pump-form-like container and discharged in the form of a foam so that it is easy to use. In addition, the quality of the tofu is finely fine and fine, and the persistence of the bubbles is good. For example, by directly taking the discharge bubbles into the hands of about 1 g (about 1 g / 1 discharge) The whole body can be washed with a small number of discharges. Further, in the case of such a hand lotion, since the cleaning tool is not used, it is possible to suppress the drying of the skin and the increase in the transdermal water volume increase, and to clean the skin more mildly.

Even when the discharge foam of the skin cleansing material is taken in a cleaning tool (for example, a sponge, a nylon towel, or the like) that easily gives friction to the skin and is cleaned, It is possible to suppress the drying of the skin after cleansing and the increase in the amount of transdermal water-increasing, and to clean the skin mildly, as compared with the case of cleaning with a liquid cleansing agent .

Example

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In the following examples, "%" of the composition is expressed by mass%, and the ratio is expressed by mass ratio, and the amount of each component in the table is a net converted value.

[Examples 1 to 5, 8, 9, 11, 13, 14, Reference Examples 6, 7, 10, 12, 15 to 17 and Comparative Examples 1 to 6]

The skin cleansing compositions having the compositions shown in Tables 1 to 4 were prepared in accordance with a predetermined rule, and the resulting liquid cleansing agent was adjusted to an initial pH value of 5 (pH meter: HM-30G, manufactured by Doa Denshi Kogyo Co., Ltd.) And 400 mL of a pump vessel having a capacity of 500 mL having a dispenser. Further, 400 mL of the above-mentioned liquid skin cleansing material was filled in a pump former container (one 200 mesh and one 305 mesh) having a capacity of 500 mL to obtain a nonaqueous-type foam-type skin cleansing agent. As the respective components in Tables 1 to 4, the products shown in the following Table 8 were used.

The obtained skin cleansing materials were evaluated as follows. The results are shown in Tables 1 to 4.

- Discharging property of foam at low temperature when filled in former container -

After the aerosol-type foam-type skin cleansing material was stored at 5 占 폚 for 1 week, the operation of discharging the foam from the pump former container at 5 占 폚 was repeated 300 times. Based on the following evaluation criteria, I appreciated. The evaluation was carried out with respect to five samples, and the results were expressed by the average value.

<Evaluation Criteria>

5: It is possible to discharge fine bubbles without fine bubbles.

4: Partially coarse bubbles are mixed, but they can be discharged with fine fine bubbles and there is no problem in quality.

3: Overall coarse bubbles are mixed, but they can be discharged with fine fine bubbles and there is no problem in quality.

2: Overall coarse bubbles are mixed and fine bubbles can not be discharged, resulting in quality problems.

1: No bubbles are formed, the bubbles can not be discharged with fine bubbles, and there is a problem in quality.

- Bubble quality fine detail -

A nylon towel moistened with liquid tap water at 40 ° C of about 3 g of liquid skin cleansing agent was used to evaluate fine fine texture of the foam quality when washing the arm. The evaluation was conducted by 30 expert panelists with high evaluation accuracy and graded on the basis of the following criteria, and the results were expressed as an average value.

<Evaluation Criteria>

◎: More than 25 people felt fine grain of bubble and fine.

○: 20 to 24 people felt fine grain of bubble and fine.

△: 15 to 19 people felt fine grain of bubble was fine.

X: Less than 14 people felt that the texture of the bubbles was fine.

- Increased transdermal water volume -

In general, it is known that when the skin protecting component is excessively removed by the skin cleansing agent, the transdermal water-increasing amount is increased. When the barrier function of the skin is deteriorated and the amount of transdermal water-evaporation is increased, there is a feeling of irritation such as tingling feeling or itching after cleaning. Then, the liquid skin cleansing agent (about 3 g) was cleaned by hand in the medial portion of the upper arm for 4 minutes in a 30-year-old male debater, purified for 30 minutes under an environment of a temperature of 20 ° C and a humidity of 40% The amount of percutaneous water-evaporated was measured five times for each arm in a measuring device (manufactured by AS-TW2 ASAHI BIOMED Co., Ltd.). The increase rate (%) after washing in the case where the transdermal water volume increase amount before washing was 100 was calculated based on the following formula with respect to the average value of 5 times, and the increase in transdermal water volume increase (decrease in skin barrier function) I appreciated. The results are shown based on the following evaluation criteria. In addition, it can be said that the skin cleanser is mild to the skin as much as the skin cleanser which has a lower rate of increase in transdermal water-volume increase (higher evaluation reference value) as compared with that before cleansing.

<Expression>

(5 times average value) - Water amount before cleaning (average of 5 times) / amount of water evaporation before washing (average of 5 times) 占 100

<Evaluation Criteria>

5: Less than 0% growth rate

4: an increase rate of 1 to 20%

3: an increase rate of 21 to 40%

2: an increase rate of 41 to 60%

1: More than 61% growth rate

- No drying of the skin after washing -

Approximately 3 g of the liquid skin cleansing agent was taken in a nylon towel moistened with tap water at 40 DEG C, and the degree of inhibition of the degree of drying of the skin after washing the arm was evaluated. The evaluation was performed on 10 expert panelists with high evaluation accuracy, and scored based on the following criteria, and the results were expressed as an average value.

<Evaluation Criteria>

◎: More than eight out of ten suppress drying

○: 6 to 7 out of 10 people suppress drying

△: 4 to 5 out of 10 people suppress drying

X: Less than 3 out of 10 suppress drying

It can be seen from the results of Tables 1 to 4 that the skin cleansing compositions of the present invention having the components (A) to (C) as a whole and having a mass ratio of (C) / [(A) + (B) 1 to 5, 8, 9, 11, 13, 14, and Reference Examples 6, 7, 10, 12, 15 to 17), when the foaming agent is fine and fine, It was found that it is an excellent skin cleansing agent capable of suppressing drying of the skin after cleansing. On the other hand, a skin cleanser (Comparative Example 1) which does not contain any one of the components (A) to (C) or the mass ratio of the component (C) / [ To 6) were inferior in at least one of the fine fineness of the foamy texture, the dischargeability of foam at low temperature when the foam container was filled, and the degree of drying of the skin after cleaning.

[Example 18: Anti-inflammatory compounding liquid cleaning agent]

An anti-inflammatory compounding liquid cleaning composition having the following composition was prepared according to a predetermined rule.

                                                       mass%

Lauric acid amide propyl betaine 10.00

Coconut oil alkyl-N-hydroxyethylimidazolinium betaine 0.50

N-coconut oil fatty acid sodium methyl taurate 2.50

POE (2) Alkyl (12-14) Sulfosuccinic acid disodium 2.00

Sulfo-succinic acid POE (5) lauroylethyl alcohol amide

2 Sodium (Sanyo Chemical Industries, Ltd.) 0.50

Propylene glycol 13.00

Concentrated glycerin 5.00

1,3-butylene glycol 2.00

Cationized cellulose (Lion Corporation) 0.05

Copper chili diphosphate 0.10

Fragrance 0.50

Blue No. 1 0.00015

Yellow No. 4 0.0001

Adjusted amount with citric acid pH 5.0

Purified water                                                    Balance

Total 100.00

(C) / [(A) + (B)] = 0.19

[Example 19: Deodorant and cleaning foam for sterilization]

The deodorant and the foam-form cleansing paste for the disinfection shown below were prepared according to a predetermined rule.

                                                           mass%

Lauric acid amide propyl betaine 9.00

Palm oil fatty acid amide propyl betaine 1.00

Lauryldimethylaminoacetic &lt; / RTI &gt; betaine 0.50

N-coconut oil fatty acid sodium methyl taurate 2.50

POE (2) Alkyl (12-14) Sulfosuccinic acid disodium 2.50

Propylene glycol 13.00

Dipropylene glycol 0.50

Concentrated glycerin 5.00

1,3-butylene glycol 2.00

Dimethyldiallylammonium chloride-acrylamide copolymer liquid

(Nalco Keyboard Co., Ltd.) 0.50

Ethyl alcohol 3.00

Isopropylmethylphenol 0.10

Pyroquatonamine 0.10

L-menthol 0.30

Fragrance 0.50

Blue No. 1 0.0001

Yellow No. 4 0.0001

Adjusted amount with citric acid pH 5.0

Purified water                                                           Balance

Total 100.00

(C) / [(A) + (B)] = 0.19

[Example 20: Bayonet mild liquid cleaning agent]

A bee-mild liquid cleaning composition having the following composition shown below was prepared according to a predetermined rule.

                                                                 mass%

Lauric acid amide propyl betaine 5.00

Lauryldimethylaminoacetic &lt; / RTI &gt; betaine 0.50

Palm oil fatty acid dimethylaminohydroxysulfobetaine 0.50

N-coconut oil fatty acid sodium methyltaurate 0.50

Sulfo-succinic acid POE (5) Lauroylethyl alcoholamide disodium 1.50

Propylene glycol 10.00

Concentrated glycerin 4.50

1,3-butylene glycol 2.00

Dipropylene glycol 0.50

Rosemary extract 1.00

Jojoba oil 0.50

Cationized cellulose (Lion Corporation) 0.05

Copper chili diphosphate 0.10

Fragrance 0.50

Blue No. 1 0.00015

Yellow No. 4 0.0001

Adjusted amount with citric acid pH 5.0

Purified water                                                              Balance

Total 100.00

(C) / [(A) + (B)] = 0.23

As to the skin cleansing materials of Examples 18 to 20, evaluation was carried out in the same manner as described above. The results are shown in Table 5. The skin cleansing agents of Examples 18 to 20 are excellent skin cleansing agents which are fine and fine in texture of foamy substance and which are excellent in discharging property of foaming at low temperature and capable of suppressing the degree of drying after cleansing when they are filled in a formatter container .

[Example 21: Evaluation of cleaning method]

For the purpose of finding a cleaning method suitable for the skin cleansing agent of the present invention, the following evaluation was conducted.

- difference in increase of transdermal water volume increase by washing method -

The skin cleansing material of Example 1 was filled in a pump former container (one 200 mesh and one 305 mesh), and about 1 g of the discharge foam was taken in a nylon towel moistened with water or tap water at 40 DEG C, And four patients were rinsed with the medial side of the upper arm for one minute, and the operation was continued once a day for five days. After 5 days of washing, the cells were purified for 30 minutes under an environment of a temperature of 20 DEG C and a humidity of 40%, and the amount of transdermal water-evaporated amount was measured five times for each arm in a transdermal water amount-of-transparency measuring apparatus (AS-TW2 ASAHI BIOMED) . The increase rate (%) of the skin permeability after washing (100%) was calculated based on the following formula, and the increase in transdermal water volume increase (skin barrier function deterioration) . The results based on the following evaluation criteria are shown in Table 6. Further, it can be said that the method is a mild cleaning method for the skin, such as a cleaning method that has a lower rate of increase in transdermal water volume increase (higher evaluation reference value) as compared with that before cleansing.

<Expression>

(5 times average value) - Water amount before cleaning (average of 5 times) / amount of water evaporation before washing (average of 5 times) 占 100

<Evaluation Criteria>

5: Less than 0% growth rate

4: an increase rate of 1 to 20%

3: an increase rate of 21 to 40%

2: an increase rate of 41 to 60%

1: More than 61% growth rate

- Difference in drying degree by washing method -

The skin cleansing material of Example 1 was filled in a pump former container (one 200 mesh and one 305 mesh), and about 1 g of the discharge foam was taken in a nylon towel moistened with water or tap water at 40 ° C, For 1 minute was continuously conducted for 5 days once a day. The degree of inhibition of the degree of drying of the skin after washing on the fifth day was evaluated. The evaluation was conducted by 10 expert panelists with high evaluation accuracy, and scored based on the following criteria. The average value thereof is shown in Table 6 as a result.

<Evaluation Criteria>

◎: More than eight out of ten suppress drying

○: 6 to 7 out of 10 people suppress drying

△: 4 to 5 out of 10 people suppress drying

X: Less than 3 out of 10 suppress drying

From the results shown in Table 6, even if any of the cleaning methods of the hand cleansing and the nylon towel cleansing is employed, the skin cleansing agent of the present invention can obtain good results in terms of no drying of the skin after cleansing and suppression of increase in transdermal water- Particularly in the case of hand-made clothes, the effect was remarkable. From this, it can be seen that the skin cleansing agent of the present invention is a skin cleansing agent particularly suitable for hand preparation.

[Example 22: Evaluation of advantages of bubble viscosity and persistence of bubble]

When the skin cleansing agent is applied to a hand such as the one described above, it is necessary that the foam discharged from the foam container does not immediately disappear (bubble retention is good) and is easy to apply on the skin. Then, the advantages of the bubble viscosity and the bubble persistence of the skin cleansing composition of the present invention were evaluated as follows.

- Bubble viscosity -

The skin cleansing agents and commercially available skin cleansing agents of the above-mentioned Examples and Comparative Examples shown in Table 7 were filled in a pump former container (one 200 mesh and one 305 mesh), and the foam viscosity of the discharge foam was measured by a Japanese Pharmacopoeia general (NO2, number of revolutions of 60 rpm, after 30 seconds / manufactured by Tokyo Meter Co., Ltd.) at 25 캜 according to the viscosity measurement method of the test method. The results are shown in Table 7. In addition, the foam viscosity can be evaluated to be about 2500 to 3100 mPa · s, from the viewpoint of the advantage of fine quality of the foam quality and durability of the foam.

- Advantages of bubble persistence -

Each of the skin cleansing agents and commercially available skin cleansing agents of the above-mentioned Examples and Comparative Examples shown in Table 7 were filled in a pump former container (one 200 mesh and one 305 mesh), and about 5 g of the ejecting foam was taken in an SV100 vial bottle , And uniformly charged to evaluate the persistence of bubble retention. The inspection height after the initial discharge foam filling and the inspection height after 30 minutes were measured. With respect to the average value of five times, the persistence rate (%) after 30 minutes of charging of the discharge foam when the foam height immediately after the discharge foam was charged was calculated based on the following formula, and the persistence of the foam was evaluated. The results based on the following evaluation criteria are shown in Table 7. Further, the skin cleaning agent having a higher persistence rate (higher standard of evaluation value) as compared with immediately after the charging can be said to be a cleaning agent having a higher bubble persistence.

<Expression>

Sustained rate (%) =

[Pogo after 30 minutes of discharging foam filling / declaration immediately after discharging foam] × 100

<Evaluation Criteria>

5: More than 90% of sustainability

4: a sustain rate of 71 to 89%

3: a sustained rate of 51 to 70%

2: a sustain rate of 31 to 50%

1: Sustained rate less than 30%

* Main component of commercial product A: alkyl (C12-15) potassium phosphate / lauryldimethylhydroxypropylsulfobetaine / 1,3-butanediol / polyphenylene glycol / glycerin = 10/3 / 2.5 /

** Main ingredient of commercial product B: cocoylglycine potassium / ndicylhydroxyethylimidazorinium betaine sodium / flflprene glycol / glycerin = 13/4/12/8 (mass%)

*** Commercial C: Plant Story Hub Brand Foam Cleanser (made by Lion Corporation)

From the results shown in Table 7, it was found that the skin cleansing composition of the present invention is excellent in the foam viscosity and persistence of the foam as compared with the skin cleansing composition of the comparative example or the commercially available skin cleansing composition. Therefore, the skin cleansing agent of the present invention is a skin cleansing agent that is easily applied to the skin, that is, a skin cleansing agent suitable for hand preparation, since the foam discharged from the former container does not immediately disappear (bubble retention is good) have.

The respective components used in each of the above-mentioned Examples are as follows.

The skin cleansing agent of the present invention can be widely applied to, for example, a body soap, a hand soap, and a triple pigment. Among them, the skin cleansing agent has a fine and fine texture of the foamy substance, It is very suitable as a skin cleanser for infants, young women, elderly people, and sensitive people in terms of mildness even for excellent and sensitive skin.

There is no particular limitation on the skin cleansing method using the above-described skin cleansing agent, but from the viewpoint of cleansing the skin more mildly, it is possible to use a cleansing agent such as a sponge or a nylon towel, A hand-washing method of taking a raw material by hand and cleaning the skin with the foam can be preferably employed.

Claims (6)

(A) a betaine-based amphoteric surfactant,
(B) an N-acyl methyl taurine salt,
(C) at least one of polyoxyethylene alkylsulfosuccinate and alkylsulfosuccinate,
(C) / [(A) + (B)] = 0.15 to 0.4 in terms of mass ratio,
Wherein the (B) N-acylmethyltaurine salt is at least one member selected from N-coconut oil fatty acid methyltaurin salt, N-lauroylmethyltaurin salt and N-
Wherein at least one of (C) the polyoxyethylene alkylsulfosuccinate and the alkylsulfosuccinate has an alkyl chain having a monovalent hydrocarbon group of 12 to 14 carbon atoms,
A skin cleansing agent filled in a foam container, wherein the skin cleansing agent has a viscosity of 15 mpa s or less. The method according to claim 1,
, The content of the component (A) is 5 to 15 mass%
(B) is from 0.5 to 10% by mass,
, And the content of the component (C) is 1.5 to 6% by mass. 3. The method according to claim 1 or 2,
Wherein the skin cleansing agent has a viscosity of 1 to 10 mPa · s. 3. The method according to claim 1 or 2,
A skin cleansing agent characterized by being for sensitive skin. A skin cleansing method comprising using the skin cleansing agent according to claim 1 or 2. 6. The method of claim 5,
A skin cleansing method comprising applying a foam-like skin cleansing agent discharged from a former container to a skin by hand and cleaning the skin.