JP6183849B2 - Skin cleanser composition - Google Patents

Description

The present invention relates to a skin cleanser composition, and more particularly, a skin cleanser with good foaming and foam quality (creaminess), no irritation to the skin, excellent horn plug removal effect, and excellent low-temperature stability over time. Relates to the composition.

In recent years, the conspicuous pores can be cited as a skin trouble for many women. The conspicuous pores are caused by clogged plugs. Square plugs are found in areas where there is a lot of sebum secretion, such as the nose and around the nose, which causes darkening and opening of pores. Also, if care for keratin plugs is delayed, acne bacteria will propagate and cause acne, so removing horn plugs is a cosmetically preferable action. However, since the keratin plugs are formed by mixing and sebuming sebum and old keratin, the effect of removal cannot be sufficiently obtained by washing with a normal cleaning agent or cleansing. In addition, methods for removing square plugs with sheets and packs have been proposed, but the usage method is complicated, such as that it takes a burden on the skin due to adhesiveness, and it takes a long time to dry before peeling. For this reason, a simple method for removing horn plugs has been desired.

For this situation, an organic acid selected from the group of lactic acid, citric acid, tartaric acid, malonic acid, malonic acid, succinic acid, oxalic acid, malic acid, isocitric acid, glycolic acid, aspartic acid, glutamic acid, pyrrolidone carboxylic acid In addition, a horn plug regeneration inhibitor (for example, see Patent Document 1) containing a salt thereof and / or a salt thereof is known. However, increasing the blending amount of organic acids to increase the effect may cause rough skin or sensory irritation, and it has been difficult to use it generally as a cosmetic. Therefore, a method for effectively suppressing the regeneration of the horn plug without causing rough skin has been proposed. Examples thereof include one or more selected from lactic acid, succinic acid, citric acid, malic acid, salicylic acid, pyrrolidone carboxylic acid, glycolic acid, and salts thereof, fatty acid soap, higher alkyl sulfuric acid. One or more surfactants selected from ester salts, N-acyl lower alkyl taurine salts, betaine surfactants, and polyoxyalkylene phytosterols, polyoxyethylene / polyoxypropylene dimethyl ether, tranexamic acid Horn containing 1 type or 2 or more types selected from pantothenyl ethyl ether, hypericum, serine, trimethylglycine, alanine, glycylglycine, vitamin E acetate, vitamin E nicotinate, 1-piperidinepropionic acid, and salts thereof Suppression of stopper removal (E.g., see Patent Document 2.) Are known. However, when such a horn plug removal inhibitor is used as a cleaning agent, for example, when fatty acid soap and an organic acid are combined, there is a problem that foaming becomes worse.

On the other hand, as a cleaning agent, a cleaning composition containing an acyl salt type anionic surfactant and an organic acid (for example, see Patent Document 3) is known. In addition, since it is pasty or solid, it cannot be used by filling a former container.

JP-A-4-360830 JP 2013-49667 A JP 2004-26976 A

The present invention has been made in view of the above circumstances, and is a skin cleanser that has good foaming, foam quality (creaminess), has no irritation to the skin, is excellent in removing plugs, and has excellent low-temperature stability over time. An object is to provide a composition.

As a result of diligent research to achieve the object of the present invention, the present inventors have combined a specific organic acid with a specific surfactant, and furthermore, a skin cleansing composition having a pH in a specific range is It has been found that the quality (creamy property) is good, the skin is not irritating, the horn plug removal effect is excellent, and the low-temperature stability over time is also excellent, and the present invention has been completed.

That is, the skin cleansing composition for removing horn plugs of the present invention contains the following components (a) and (b), and has a pH of 3 to 4.6 .
(A) One or more kinds selected from lactic acid, malic acid, and tartaric acid (b) N-acyl taurine type anionic surfactant represented by the following general formula (1) R ₁ CO—NR ₂ —CH ₂ CH ₂ SO ₃ M (1)
[In the above formula, R ₁ represents a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, R ₂ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M represents an alkali metal atom, alkaline earth Represents a metal atom, ammonium, or organic amine. ]

According to the present invention, it is possible to provide a skin cleanser composition having good foaming, foam quality (creamy property), no irritation to the skin, excellent horn plug removal effect, and excellent low-temperature stability over time. it can.

Hereinafter, the skin cleansing composition of the present invention will be described in detail.

The component (a) used in the skin cleansing composition of the present invention is selected from lactic acid, malic acid, and tartaric acid, and may be used alone or in combination of two or more. Of these, tartaric acid is particularly preferred. The amount of component (a) is preferably 0.01 to 5% by mass (hereinafter simply referred to as “%”) in the total composition, more preferably 0.1 to 2.5%. If the blending amount is 0.01% or more, the effect of removing horn plugs is sufficiently obtained. Moreover, although the salt of lactic acid, malic acid, and tartaric acid can also be mix | blended with the skin cleaning composition of this invention, the removal effect of a square plug is not acquired with these salts. It is essential to blend at least one selected from lactic acid, malic acid, and tartaric acid.

Component (b) used in the skin cleansing composition of the present invention is an N-acyl taurine type anionic surfactant represented by the following general formula (1).
R ₁ CO—NR ₂ —CH ₂ CH ₂ SO ₃ M (1)
[In the above formula, R ₁ represents a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, R ₂ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M represents an alkali metal atom, alkaline earth Represents a metal atom, ammonium, or organic amine. ]
Specific examples of such an N-acyl taurine type anionic surfactant include, for example, N-lauroyl-N-methyl taurine salt, N-myristoyl-N-methyl taurine salt, N-cocoyl-N-methyl taurine. Salt, N-lauroyl-N-ethyltaurine salt, N-myristoyl-N-ethyltaurine salt, N-cocoyl-N-ethyltaurine salt, N-lauroyltaurine salt, N-cocoyltaurine salt, etc. It is not limited to. The N-acyl taurine type anionic surfactants can be used singly or in combination of two or more.

Examples of the counter ion of the N-acyl taurine type anionic surfactant include alkali metals (for example, lithium, potassium, sodium, etc.), alkaline earth metals (for example, calcium, magnesium, etc.), ammonium, organic amines (for example, Monoethanolamine, diethanolamine, triethanolamine, etc.). Of these, sodium and potassium are preferred. Commercially available products can be used as the N-acyl taurine type anionic surfactant, and examples thereof include Diapon K-SF (manufactured by NOF Corporation), Amphorex AM-1 (manufactured by Miyoshi Oil & Fats Co., Ltd.) and the like.

The blending amount of component (b) in the present invention is preferably from 0.1 to 20%, more preferably from 1 to 15%, in the total composition. If the blending amount is 0.1% or more, sufficient foaming can be obtained. If the blending amount is 20% or less, the cleaning power is not too strong.

The skin cleansing composition of the present invention contains the components (a) and (b) as essential components, and the pH is adjusted to 3-5. If the pH is less than 3, skin irritation may occur, and if the pH exceeds 5, the removal effect of the horn plug may not be sufficiently obtained. Furthermore, when the pH is adjusted to 3 to 5, the horn plug can be easily removed by washing. Moreover, acne can be prevented by removing the square plug. The pH is measured according to JIS K6220. A pH adjuster can be appropriately used in the cleaning composition of the present invention within a range not impairing the effects of the present invention. As the pH adjuster, organic acid salts such as lactate, malate, tartrate, citrate, succinate, salicylate, benzoate and the like are preferable.

The skin cleanser composition of the present invention preferably does not contain a higher fatty acid salt. Higher fatty acid salts are saponified or neutralized with higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, coconut oil, and alkaline agents such as sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, etc. In addition, when a higher fatty acid salt is added, the foamability may be reduced, or the pH may exceed 5 and the removal effect of the horn plug may be lost.

The skin cleansing composition of the present invention is preferably used by filling it into a former container. A former container is a container which can be discharged in the form of a foam by mixing the composition filled in the container and air and allowing the porous film to pass through. Specifically, a pump former, a squeeze former, etc. can be illustrated.

In addition, one or a plurality of porous membranes inside the discharge container are provided, and the number of pores in these membranes is not particularly limited, but is preferably 100 to 400 mesh, and 200 to 300 from the viewpoint of making a fine foam. It is more preferable to use a mesh.

The skin cleanser composition of the present invention can be produced by a conventional method, and can be suitably used as a skin cleanser composition for facial cleansing, cleansing, body shampoo, massage etc.

In addition to the components described above, the skin cleansing composition of the present invention has other components as long as the object of the present invention is not impaired, such as an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant. Agents, water-soluble polymer compounds (including cationic, nonionic, anionic, etc.), physiologically active ingredients, antioxidants, sequestering agents, preservatives, UV absorbers, perfumes, moisturizers, salts, solvents, Components such as a neutralizing agent, an insect repellent, and an enzyme can be appropriately blended.

Although it does not specifically limit as said anionic surfactant, For example, N-coconut oil fatty-acid acylglycine potassium, N-coconut oil fatty-acid acylglycine sodium, N-palm kernel oil fatty-acid acylglycine ammonium, N-coconut Oil fatty acid acyl potassium glutamate, N-coconut oil fatty acid acyl glutamic acid triethanolamine, N-lauroyl glutamate sodium, N-lauroyl glutamate triethanolamine, N-lauroylalanine sodium, N-stearoylalanine sodium, N-myristoyl aspartate triethanol Amine, sodium α-lauroyl sulfonate, sodium myristoyl allyl sulfonate, sodium lauryl naphthalene sulfonate, triethanolamine lauryl sulfate, lauryl Ammonium, sodium lauryl ether sulfate, sodium polyoxyethylene lauryl ether sulfate, polyoxyethylene coconut oil fatty acid amide ether potassium sulfate and the like, may be appropriately selected and used singly or in combination.

The amphoteric surfactant is not particularly limited, and examples thereof include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, and lauryl. Sodium aminodiacetate, sodium β-aminopropionate, N-lauroyl-N′-carboxymethyl-N′-hydroxyethylethylenediamine sodium, coconut oil fatty acid dimethylsulfopropylbetaine, lauryldimethylaminohydroxysulfobetaine, laurylhydroxysulfobetaine, etc. One type or two or more types may be appropriately selected and used.

The nonionic surfactant is not particularly limited. For example, polyoxyethylene cetyl ether, sorbitan monostearate, polyoxyethylene hydrogenated castor oil, polyoxyethylene monoisostearate, polyoxyethylene dioleic acid Examples include glyceryl, coconut oil fatty acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid N-methylethanolamide, polyoxyethylene polyoxypropylene glycol, polyethylene glycol monolaurate, polyoxyethylene sorbitan monolaurate, and so on. Alternatively, two or more types may be selected and used.

The water-soluble polymer is not particularly limited. For example, dimethyldiallylammonium chloride / acrylamide copolymer, acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer, hydroxyethylcellulose, hydroxypropylcellulose, hydroxy Examples include propylmethylcellulose, hydroxypropyl starch phosphate, polyethylene glycol, highly polymerized polyethylene glycol, polyvinyl alcohol, polyglutamic acid, carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, alkyl acrylate copolymer, etc. Select and use.

Examples of the physiologically active ingredient include substances that impart some physiological activity to the skin when applied to the skin. For example, anti-inflammatory agents, anti-aging agents, UV protection agents, tanning agents, antioxidants, moisturizers, blood circulation promoters, antibacterial agents, bactericides, desiccants, cooling agents, warming agents, vitamins, amino acids, Examples include wound healing promoters, stimulus-relieving agents, analgesics, cell activators, enzyme components, and the like. Examples of the physiologically active component include natural plant extract components, seaweed extract components, herbal medicine components, and compounds. Among these, natural plant extract components, seaweed extract components, herbal medicine components are particularly safe. This is preferable.

Examples of the above-mentioned natural plant extract components, seaweed extract components, herbal medicine components include, for example, Ashitaba extract, Achacha extract, Altea extract, Aloe extract, Apricot extract, Ginkgo biloba extract, Fennel extract, Oolong tea extract, Ages extract, Ogon extract, Oat extract, Hypericum extract, Dutch mustard extract, Orange extract, Seawater dried product, Seaweed extract, Hydrolyzed wheat powder, Hydrolyzed silk, Chamomile extract, Carrot extract, Kawara mugwort extract, Licorice extract, Kiwi extract, Cucumber extract, Gardenia extract, Kumazasa extract, Clara extract, Walnut extract, Grapefruit extract, Chlorella extract, Mulberry extract, Black tea extract, Yeast extract, Collagen, Salvia extract, Soap extract, Hawthorn Kiss, Giant extract, Shikon extract, Perilla extract, Linden extract, Peonies extract, Birch extract, Horsetail extract, Horseshoe extract, Hawthorn extract, Horseshoe extract, Pepper extract, Sage extract, Senkyu extract, Assembly extract, Soybean extract , Tiso extract, thyme extract, tea extract, clove extract, chimpi extract, toki extract, tonin extract, dokudami extract, tomato extract, natto extract, carrot extract, garlic extract, wild rose extract, honey, hamamelis extract, cassava extract, bisabolol, loquat extract, bukuryu Extract, Propolis, Loofah extract, Peppermint extract, Bodaige extract, Hop extract, Madonna lily flower Ex , Mention may be made of horse chestnut extract, Sapindus extract, Melissa extract, peach, strawberry geranium extract, Yuzuekisu, mugwort extract, lavender extract, lemon extract, Astragalus Saw extract, rosemary extract, royal jelly extract, and the like.

Examples of components other than the above-mentioned natural plant extract components, seaweed extract components, and herbal medicine components include deoxyribonucleic acid, mucopolysaccharide, sodium hyaluronate, sodium chondroitin sulfate, collagen, elastin, chitin, chitosan, hydrolyzed eggshell membrane Moisturizing ingredients such as biopolymers such as amino acids, sodium lactate, urea, sodium pyrrolidone carboxylate, betaine, whey, oily ingredients such as sphingolipids, ceramides, cholesterol, cholesterol derivatives, phospholipids, ε-aminocaproic acid, glycyrrhizic acid , Β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, hydrocortisone and other anti-inflammatory agents, vitamins (A, B2, B6, C, D, E), calcium pantothenate, biotin, nicotinamide, vitamin C esters, etc. Active ingredients such as amines, allantoin, diisopropylamine dichloroacetate, 4-aminomethylcyclohexanecarboxylic acid, antioxidants such as tocopherol, carotenoid, flavonoid, tannin, lignan, saponin, α-hydroxy acid, β-hydroxy acid, etc. Cell activators, blood circulation promoters such as γ-oryzanol, vitamin E derivatives, fungicides such as isopropylmethylphenol, triclosan, hinokitiol, benzalkonium chloride, cooling agents such as l-menthol and mint oil, retinol, retinol derivatives And wound healing agents.

Next, although the skin cleansing composition of this invention is demonstrated in detail with an Example, this invention is not limited by this. In addition, the compounding quantity in all the following examples and comparative examples is the mass%.

-Examples 1-11 and Comparative Examples 1-8
A skin cleanser composition having the composition shown in Table 1 was prepared according to a conventional method, and 200 mL of a 200 mL capacity pump former type container (using two 200 mesh) was filled. Got. The obtained skin cleansing composition was evaluated as follows, and the results are also shown in Table 1. In addition, the compounding quantity of sodium citrate (for pH adjustment) described the required quantity adjusted to each pH value as an appropriate quantity.

(1) Foaming at room temperature and creaminess of foam (at the time of discharge and after 1 minute from discharge)
20 panelists perform normal squeeze operations at room temperature, discharge the contents and pick them up in their hands. After the foam is discharged and 1 minute after the foam is discharged, the appearance and feel of the foam increases the creaminess of the foam. Sensory evaluation was performed at room temperature according to the following evaluation criteria.
<Evaluation criteria>
◎: Foam is quite creamy and good ○: Foam is creamy and good △: Foam is slightly rough and slightly soft ×: Foam is too rough and soft

(2) Skin irritation at the time of use The following evaluation was made on the irritation when washing the face after applying the skin cleanser composition directly to the face using 3 g of the skin cleanser composition on 20 professional panels. Sensory evaluation was performed at room temperature according to the standard.
<Evaluation criteria>
◎: The number of subjects who answered that there was no irritation at the time of use was 18 or more ○: The number of subjects who answered that there was no irritation at the time of use 14-17 people △: The number of subjects who answered that there was no irritation at the time of use 9 ~ 13 people ×: The number of subjects who answered that there was no irritation during use was less than

＜評価基準＞
◎：角栓除去率が６０％以上
○：角栓除去率が４０％以上６０％未満
△：角栓除去率が２０％以上４０％未満
×：角栓除去率が２０％未満 (3) Removal effect of horn plug For 5 healthy panels, 1 g of the skin cleanser composition was applied only to the nose portion, massaged for 30 seconds, and then rinsed with water for 1 minute. The number of horn plugs present in the nose before and after washing was measured, and the horn plug removal rate was calculated and evaluated by the following formula (1).

<Evaluation criteria>
◎: Square plug removal rate is 60% or more ○: Square plug removal rate is 40% or more and less than 60% △: Square plug removal rate is 20% or more and less than 40% ×: Square plug removal rate is less than 20%

(4) Low temperature stable skin cleanser compositions were each filled into 50 mL transparent sample tubes, stored at 5 ° C. for 1 week, and evaluated according to the following criteria.
<Evaluation criteria>
◎: Appearance is transparent and there is no precipitate ○: Very slightly turbid but no precipitate △: Slightly cloudy with some precipitate ×: Many precipitates are observed

As is clear from Table 1, the skin cleanser compositions of Examples 1 to 11 using the components of the present invention all found superior performance as compared to the compositions of Comparative Examples 1 to 8.

Hereinafter, other prescription examples of the skin cleansing composition of the present invention are listed as Examples 12 to 14.

Example 12 Skin Cleanser Composition Containing Anti-Inflammatory Agent and Bactericide (1) Tartaric Acid 1.0
(2) N-cocoyl-N-methyltaurine sodium 6.0
(3) Lauryl hydroxysulfobetaine 3.0
(4) Polyoxyethylene sorbitan monolaurate 5.0
(5) Glycerin 10.0
(6) Dipropylene glycol 5.0
(7) Hop extract 1.0
(8) Glycosyl trehalose 0.5
(9) Oolong tea extract 0.1
(10) Hydrolyzed collagen solution 0.1
(11) Sodium hyaluronate 0.1
(12) N-acetylglucosamine 0.1
(13) Royal jelly extract 0.1
(14) Lemon extract 0.1
(15) Hinogi extract 0.1
(16) Soybean extract 0.1
(20) Dipotassium glycyrrhizinate 0.1
(21) Isopropylmethylphenol 0.1
(22) Sodium citrate 2.3
(23) Disodium edetate 0.1
(24) Orange oil 0.2
(25) Purified water residue (pH 4.5)

Pump former type skin cleansing compositions were prepared in the same manner as in Examples 1-11. Evaluation of foaming at room temperature, foam creaminess, skin irritation, horn plug removal effect, and low-temperature stability of the preparations showed excellent properties and excellent results.

Example 13 Face Wash Foam (1) Tartaric Acid 3.0
(2) N-cocoyl-N-methyltaurine sodium 6.0
(3) 2-alkyl-N-carboxymethyl-
N-hydroxyethylimidazolium betaine 2.0
(4) Palm oil fatty acid monoethanolamide 0.5
(5) Glycerin 15.0
(6) Dimethyldiallylammonium chloride / acrylamide copolymer 0.3
(7) Alkyl acrylate copolymer 2.0
(8) Polyglutamic acid 0.5
(9) Soybean extract 0.1
(10) Rose extract 0.1
(11) Glycosyl trehalose 0.5
(12) Sodium hyaluronate 0.1
(13) Yukinoshita extract 0.1
(14) Peach leaf extract 0.1
(15) Aloe vera leaf extract 0.1
(16) N-acetylglucosamine 0.1
(17) Canina rose fruit extract 0.1
(18) Sodium hydroxide 0.3
(19) Sodium citrate 7.0
(20) Edetate disodium 0.1
(21) Fragrance 0.2
(22) Purified water residue (pH 4.0)

A facial cleansing foam with the above composition was prepared by a conventional method and evaluated for foaming at room temperature, foam creaminess, skin irritation, keratin plug removal effect, and low-temperature stability of the preparation. Results were obtained.

Example 14 Body Shampoo (1) Lactic acid 0.5
(2) N-lauroyl-N-methyltaurine sodium 15.0
(3) Polyoxyethylene lauryl ether sodium sulfate 3.0
(4) Palm oil fatty acid amidopropyl betaine 2.0
(5) Glycerin 15.0
(6) Dimethyldiallylammonium chloride / acrylamide copolymer 0.3
(7) Hydroxypropyl methylcellulose 1.0
(8) Peach leaf extract 1.0
(9) Aloe vera leaf extract 0.1
(10) Glycosyl trehalose 0.1
(11) Chamomile extract 0.1
(12) Novara extract 0.1
(13) Silk extract 0.1
(14) N-acetylglucosamine 0.1
(15) Kiwi extract 0.1
(16) Apricot fruit extract 0.1
(17) Eucalyptus extract 0.1
(18) Sodium chloride 0.1
(19) Edetate disodium 0.1
(20) Fragrance 0.5
(21) Purified water residue (pH 3.5)

A body shampoo with the above composition was prepared by a conventional method and evaluated for foaming at room temperature, foam creaminess, skin irritation, keratin plug removal effect, and low-temperature stability of the preparation. Results were obtained.

Claims (3)

A skin cleansing composition for removing horn plugs, comprising the following components (a) and (b) and having a pH of 3 to 4.6.
(A) One or more kinds selected from lactic acid, malic acid, and tartaric acid (b) N-acyl taurine type anionic surfactant represented by the following general formula (1) R ₁ CO—NR ₂ —CH ₂ CH ₂ SO ₃ M (1)
[In the above formula, R ₁ represents a saturated or unsaturated hydrocarbon group having 7 to 19 carbon atoms, R ₂ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M is an alkali metal atom, Represents an alkaline earth metal atom, ammonium, organic ammonium, or basic amino acid. ] The skin cleanser composition according to claim 1, which does not contain a higher fatty acid salt. The skin cleansing composition according to any one of claims 1 to 2, which is filled in a former container.