JP2023075541A - Gel-like skin cleanser composition - Google Patents

Abstract

To provide a gel-like skin cleanser composition which is easy to use without dripping of the composition, has excellent foamability and foam quality even if the overall surfactant amount is reduced, further improves skin quality and skin texture and improves skin dryness and has an excellent sense of use which makes the skin smooth.SOLUTION: There is provided a gel-like skin cleanser composition which comprises the following components (A) to (D) and has a viscosity at 25°C of 5000 to 100000 mPa s: (A) an anionic surfactant containing a carboxyl group and/or a sulfonic acid group, (B) an alkyl acrylate-alkyl methacrylate-polyoxyethylene copolymer and/or a cellulose-based thickener, (C) one or two or more fruit extracts and (D) one or two or more plant extracts extracted from parts other than fruits.SELECTED DRAWING: None

Description

The present invention is easy to use without dripping of the agent, is excellent in foaming and foam quality even when the total amount of surfactant is reduced, further improves skin quality and skin texture, improves skin dryness, and smoothes skin. It relates to a gel-like skin cleanser excellent in feeling of use.

Skin cleansing compositions such as facial cleansers and cleansing agents are usually gel-like agents because of their ease of use, such as dripping from between fingers when lathering and dripping during massage, and their beauty, such as their glossy appearance. type is preferred. Gelling agents and thickeners are used to gel surfactant compositions. Most commonly used gelling agents are carboxyvinyl polymers neutralized with a base (sodium hydroxide or triethanolamine), but the type and concentration of surfactants and other additives However, there are problems such as thickener precipitation due to storage conditions or temperature during use, which causes turbidity in transparent detergents, changes in the foam quality of the surfactant itself, and significantly worsens the feeling of use. there were. In order to address such problems, studies have been made on gel-like skin cleansing compositions that are excellent in usability and foamability (see, for example, Patent Documents 1 and 2).

On the other hand, it is known that when the skin's moisturizing function declines due to aging or external stimuli, phenomena such as dry skin and accompanying rough skin, wrinkles and sagging due to reduced firmness and elasticity of the skin are induced, and the texture is disturbed. there is Therefore, it is extremely important to use skin care ingredients to improve skin quality and texture, improve skin dryness, and make skin smooth as a preventive care for various cosmetically unfavorable skin conditions. is. In addition to the problem of appearance, it is also known that the skin's natural moisturizing function and barrier function will deteriorate if the skin texture is left untreated. had been

In order to prevent such disturbance of texture, various methods such as cosmetics and foods have been proposed. For example, when suppressing rough skin caused by external factors and adjusting the texture of the skin, cosmetics containing ingredients that are effective in promoting metabolism of the skin epidermis, ingredients that are effective in protecting the stratum corneum, and ingredients that promote the synthesis of hyaluronic acid and collagen. fee is proposed. From this point of view, anti-aging agents stably containing linolenic acid that promotes metabolism (see, for example, Patent Document 3), texture-improving cosmetics containing sorbitol and/or mannitol and glycerin and/or diglycerin. (see, for example, Patent Document 4), a texture-improving cosmetic containing an oily component characterized by having a skin penetration index of 2 or more (see, for example, Patent Document 5), and a texture-improving cosmetic containing ethyl oleate. There have been proposed cosmetics (see, for example, Patent Literature 6) that are excellent in the effect of regulating skin tone.

Japanese Patent No. 4118482 JP 2013-112663 A Japanese Patent Application Laid-Open No. 2002-080370 JP-A-2004-051545 JP 2004-051539 A JP 2006-273807 A

All of the above-mentioned prior arts have been improved to a certain extent as a method for the purpose of preventing texture disturbance. Multiple factors such as reduction of damage to the skin and promotion of metabolism of the skin from the inside must be adjusted in an appropriate balance, and sufficient functions have not yet been achieved.

Therefore, the object of the present invention is to provide a product that is easy to use without dripping, has excellent foaming and foam quality even if the total amount of surfactant is reduced, improves skin quality and skin texture, and improves skin dryness. To provide a gel-like skin cleanser excellent in feeling of use for smoothing the skin.

The present inventors, as a result of intensive research to achieve the above object, 1 selected from a specific anionic surfactant, a specific copolymer and / or thickener, fennel extract, apple extract, rice bran extract By containing the seed or two or more, it is not only excellent in foaming and foam quality, but also improves skin quality and skin texture, improves skin dryness, and makes skin smooth. Gel skin with excellent feeling of use. They found that it can be used as a cleaning agent, and completed the present invention.

The first invention of the present application is
A gel skin cleanser composition comprising the following components (A) to (D) and having a viscosity of 5,000 to 100,000 mPa·s at 25°C.
(A) an anionic surfactant containing a carboxyl group and/or a sulfonic acid group (B) an alkyl acrylate/alkyl methacrylate/polyoxyethylene copolymer and/or a cellulose thickener (C) 1 or 2 Fruit extract of seeds or more (D) 1 or 2 or more plant extracts extracted from parts other than fruits

The second invention of the present application is the gel-type skin cleanser composition according to the first invention of the present application, wherein the component (A) is one or more selected from fatty acid salts and N-acyl amino acid surfactants.

A third invention of the present application is the gel-like skin cleanser composition according to the first or second invention of the present application, wherein the component (C) is one or more selected from fennel fruit and apple fruit.

The fourth invention of the present application is characterized in that the component (D) is one or more plant extracts selected from rice bran, pearl barley seeds and peony roots. The gel-like skin cleanser composition according to any one of the third inventions.

According to the present invention, the agent is easy to use without dripping, it is excellent in foaming and foam quality even if the total amount of surfactant is reduced, and the skin quality and skin texture are improved, and the dryness of the skin is improved. It is possible to provide a gel-like skin cleanser with an excellent feeling of use that makes the skin smooth.

<(A) Component>
The component (A) anionic surfactant used in the present invention is an anionic surfactant containing at least one of a carboxyl group and a sulfonic acid group. Surfactants are included. The component (A) is used for the purpose of foaming by reducing the interfacial tension.

More specifically, fatty acid salts include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenin, regardless of saturated fatty acid, unsaturated fatty acid, linear fatty acid, or branched fatty acid. One or two or more selected from acids, oleic acid, linoleic acid, isostearic acid, etc., and lauric acid, myristic acid, palmitic acid, and stearic acid are particularly preferred in terms of realizing good foaming, foam quality, and stability. is.

N-acyl amino acid surfactants include N-cocoylglycinate, N-lauroylglutamate, N-myristoylglutamate, N-lauroyl-N-methylglycinate, N-lauroyl-β-alanine, N- It is preferably one or more selected from myristoyl-β-alanine salts, N-lauroyl aspartates, N-lauroyl serine salts, and N-acylmethyl taurate salts.

The salt portion of the N-acylamino acid surfactant is preferably one or more selected from alkali metal salts, alkanolamines and basic amino acid salts.

In the gel-type skin cleansing composition of the present invention, the amount of the anionic surfactant containing a carboxyl group and/or a sulfonic acid group is 0.1 to 40% by mass relative to the total amount of the composition, preferably 5 to 30% by mass, more preferably 15 to 30% by mass. When the blending amount is 0.1% by mass or more, good foaming, foam quality, detergency, and feel during use are obtained.

Further, in order to improve low-temperature stability, it is preferable to further contain an amphoteric surfactant. The amphoteric surfactant is not limited as long as it is commonly used in skin cleansing compositions, and examples include lauramidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryldimethylaminoacetate betaine, and 2-alkyl surfactants. -N-carboxymethyl-N-hydroxyethylimidazolinium betaine, sodium laurylaminodiacetate, sodium β-aminopropionate, sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine and the like.

<(B) Component>
The component (B) used in the present invention is at least one of an alkyl acrylate/alkyl methacrylate/polyoxyethylene copolymer and a cellulose-based thickener, and is used for the purpose of thickening.

The alkyl acrylate/alkyl methacrylate/polyoxyethylene copolymer includes acrylic acid and/or methacrylic acid monomers and at least one of alkyl acrylate (C1 to C4) and alkyl methacrylate (C1 to C4). Copolymers of the above monomers and one or more monomers that are esters of polyoxyethylene (addition number 2 to 70) alkyl (C8 to C30) ethers and acrylic acid or methacrylic acid can be mentioned. Monomers of polyoxyethylene alkyl ether and acrylic acid or methacrylic acid include, for example, esters of polyoxyethylene (20) stearyl ether and methacrylic acid. This copolymer is usually in an emulsion state, and the thickener disclosed in JP-A-11-549 corresponds to this. Commercially available products include Aculin 22 (manufactured by Rohm and Haas Japan).

Cellulosic thickeners include carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose and the like.

In the gel-like skin cleanser composition of the present invention, the amount of the alkyl acrylate/alkyl methacrylate/polyoxyethylene copolymer and/or the cellulose-based thickener is 0.1 to 10% relative to the total amount of the composition. % by mass, preferably 1 to 8% by mass, more preferably 1 to 5% by mass. If the blending amount is 0.1% by mass or more, it does not drip off the skin and the feeling of use is good. Foaming, foam quality, feeling of use can be obtained.

<(C) Component>
As the component (C) used in the present invention, one or more fruit extracts are used for the purpose of preventing or improving skin texture disorder. Specific examples of raw materials for fruit extracts include fennel fruit, apple fruit, star fruit fruit, bilberry fruit, and yuzu fruit.

Fruit extracts are obtained by adding water, lower alcohols such as ethanol, polyhydric alcohols such as propylene glycol and 1,3-butylene glycol, polyhydric alcohol alkyl ethers such as diethylene glycol ether, and other polar solvents after crushing each fruit. , or a mixture thereof, but it is not limited thereto. These ingredients are known to contain sugars and polyphenols in a well-balanced manner, and the ingredients extracted as described above are generally prepared to contain about 1 to 10% by mass. Available as a fruit extract. These fruit extracts can be used singly or in combination of two or more in the gel-like skin cleanser composition of the present invention.

In the gel-like skin cleanser composition of the present invention, the amount of the one or more fruit extracts is 0.0001 to 1.0% by mass, preferably 0.001%, based on the total amount of the composition. ~0.5% by mass, more preferably 0.1 to 0.3% by mass. If the amount is 0.0001% by mass or more, a sufficient effect of improving the texture and dryness of the skin can be obtained, and if it is 1.0% by mass or less, the fruit extract component precipitates and stickiness occurs during use. The feeling of use is good.

<(D) Component>
The component (D) used in the present invention is one or more plant extracts extracted from parts other than fruits, and is used for the purpose of improving dryness of the skin. Specific examples of raw materials for plant extracts extracted from parts other than fruits include rice bran, pearl barley seeds, peony roots, star fruit leaves, bilberry leaves, flowers of Asteraceae plants, pomegranate flowers and buttons. and the like.

Plant extracts extracted from parts other than fruits are water, lower alcohols such as ethanol, polyhydric alcohols such as propylene glycol and 1,3-butylene glycol, and polyhydric alcohols such as diethylene glycol ether. It can be obtained by extraction with an alcohol alkyl ether or other polar solvent, or a mixture thereof, but is not limited to these. The components extracted as described above are generally available as plant extracts prepared to contain about 1 to 10% by mass. In the gel-type skin cleansing composition of the present invention, plant extracts extracted from parts other than fruits can be used singly or in combination of two or more.

In the gel-like skin cleanser composition of the present invention, the blending amount of one or more plant extracts extracted from parts other than fruits is 0.0001 to 2.0% by mass based on the total amount of the composition. Yes, preferably 0.001 to 1.0% by mass, more preferably 0.1 to 0.5% by mass. If the blending amount is 0.0001% by mass or more, a sufficient effect of improving skin texture and dryness can be obtained, and if it is 2.0% by mass or less, the plant extract components extracted from parts other than fruits are included. It does not separate out and does not have a strong raw material odor, and has a good feeling when used.

The gel skin cleansing composition of the present invention has a viscosity of 5,000 to 100,000 mPa·s at 25°C. If the viscosity is 5,000 mPa s or more, it does not drip from the skin and the feeling of use is good. You can get a good lather, foam quality, and a feeling of use.

In addition, the gel skin cleanser composition of the present invention does not substantially contain ethanol and parabens such as parahydroxybenzoic acid, methyl parahydroxybenzoate and ethyl parahydroxybenzoate. This makes it possible to reduce irritation to the skin. The phrase "substantially does not contain" means that it is not contained at all or contains only the amount potentially contained in raw materials such as plant extracts.

The gel-type skin cleansing composition of the present invention may contain, in addition to the above-described components, other components such as cationic surfactants, nonionic surfactants, polymers, and so on, as long as the objects of the present invention are not impaired. Components such as powders (pigments, dyes, resins, etc.), fragrances, moisturizers, physiologically active ingredients, salts, solvents, pearlizing agents, neutralizers, pH adjusters, insect repellents, enzymes, etc. can be appropriately blended. can.

Examples of the powder include pigments such as Red No. 201, Yellow No. 4, Blue No. 1 and Black No. 401, lake pigments such as Yellow No. 4 Al lake and Yellow No. 203 Ba lake, nylon powder, silk powder, Silicone powder, cellulose powder, silicone elastomer spherical powder, polymers such as polyethylene powder, yellow iron oxide, red iron oxide, chromium oxide, carbon black, ultramarine blue, dark blue and other colored pigments, zinc oxide, titanium oxide and other white pigments , extender pigments such as talc, mica, sericite, and kaolin; pearl pigments such as titanium mica; metal salts such as barium sulfate, calcium carbonate, magnesium carbonate, and magnesium silicate; inorganic powders such as silica and alumina; Boron nitride etc. are mentioned. The shape of these powders (spherical, rod-like, needle-like, plate-like, amorphous, scaly, spindle-like, etc.) is not particularly limited.

The powder is subjected to conventionally known surface treatments such as fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, oil treatment, N-acylated lysine treatment, polyacryl The surface may or may not have been previously surface-treated by an acid treatment, a metallic soap treatment, an amino acid treatment, an inorganic compound treatment, a plasma treatment, a mechanochemical treatment, or the like.

Examples of the solvent include purified water, ethanol, light liquid isoparaffin, lower alcohols, ethers, LPG, fluorocarbons, N-methylpyrrolidone, fluoroalcohols, volatile straight-chain silicones, and next-generation freon.

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, tightening agents, antioxidants, moisturizing agents, blood circulation promoting agents, antibacterial agents, bactericidal agents, drying agents, cooling agents, warming agents, vitamins, amino acids, Examples thereof include wound healing promoters, stimulant relievers, analgesics, cell activators, enzyme components, and the like. The physiologically active ingredients include natural plant extracts, seaweed extracts, herbal medicines, compounds, etc. Among these, natural plant extracts, seaweed extracts, and herbal medicines are particularly safe. point is preferable.

Ingredients other than the above natural plant extract ingredients, seaweed extract ingredients, and crude drug ingredients include, for example, deoxyribonucleic acid, mucopolysaccharides, sodium hyaluronate, sodium chondroitin sulfate, collagen, elastin, chitin, chitosan, and hydrolyzed eggshell membrane. Moisturizing ingredients such as amino acids, sodium lactate, urea, sodium pyrrolidonecarboxylate, betaine, whey, sphingolipids, ceramides, cholesterol, cholesterol derivatives, oily ingredients such as phospholipids, ε-aminocaproic acid, glycyrrhizic acid , β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, anti-inflammatory agents such as hydrocortisone, vitamins (A, B2, B6, C, D, E), calcium pantothenate, biotin, nicotinamide, vitamin C ester, etc. Active ingredients such as allantoin, diisopropylamine dichloroacetate, 4-aminomethylcyclohexanecarboxylic acid, tocopherol, carotenoids, flavonoids, tannins, lignans, saponins and other antioxidants, α-hydroxy acids, β-hydroxy acids and other cells activators, blood circulation promoters such as γ-oryzanol and vitamin E derivatives, bactericides such as isopropylmethylphenol, triclosan, hinokitiol, benzalkonium chloride and phenoxyethanol, cooling agents such as l-menthol and peppermint oil, retinol, retinol Examples include wound healing agents such as derivatives.

Examples of the pH adjuster include citric acid, sodium citrate, sodium hydroxide, potassium hydroxide, arginine, triethanolamine, and the like.

EXAMPLES The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples. Sensory property tests described in Examples were carried out by the following methods.

<Sensory property test>
A panel of 20 experts used the gel-type skin cleanser composition continuously for 2 weeks, evaluated each item of dripping, foaming, foam quality, skin texture and smoothness by 5 grades by sensory test, and further calculated the average score. Judgment was made according to the following criteria.
5-step evaluation
5 points: very good 4 points: good 3 points: average 2 points: somewhat bad 1 point: bad
judgement
◎: Average score is 4.5 points or more ○: 3.5 or more and less than 4.5 points △: 2.5 or more and less than 3.5 points ×: Average score is less than 2.5 points

Examples 1 to 8 and Comparative Examples 1 to 10 (gel skin cleansing composition).
Gel-type skin cleansing compositions were prepared according to the compositions shown in Tables 1 and 2, and the sensory characteristics tests were carried out. The results are also shown in Tables 1 and 2.

From the results in Tables 1 and 2, the gel-type skin cleansing composition of each example is easier to use than the one of each comparative example without dripping, even if the total amount of surfactant is reduced. It can be seen that the foaming and foam quality are excellent, and the skin texture and skin texture are adjusted, the dryness of the skin is improved, and the feeling of use that makes the skin smooth is also excellent.

Formulation examples of the gel-type skin cleansing composition according to the present invention are shown below.

Prescription example 1 (facial cleanser)
(Component name) (% by mass)
1. Potassium N-cocoylglycine 15.0
2. (Acrylates/steareth-20 methacrylate) copolymer 5.0
3. Lauryl hydroxysultaine 2.0
4. Potassium hydroxide 0.7
5. Dimethyldiallylammonium chloride/acrylamide copolymer liquid 0.3
6. Ascorbic acid 2-glucoside 0.5
7. Dipotassium glycyrrhizinate 0.2
8. Fennel extract 0.2
9. Apple fruit extract 0.2
10. Yuzu fruit extract 0.2
11. Coix seed extract 0.3
12. Peony root extract 0.05
13. Hydrolyzed conchiolin 0.05
14. Rice bran extract 0.1
15. Citric acid 0.05
16. Sodium citrate 0.1
17. Glyceryl glucoside 1.0
18. Hyaluronic acid Na 0.3
19. Lavender oil 0.015
20. orange oil 0.2
21. Bergamot oil 0.015
22. Phenoxyethanol Appropriate amount 23. Sodium benzoate Appropriate amount 24. Tetrasodium edetate appropriate amount25. Purified water Remainder

Formulation example 2 (body gel)
(Component name) (% by mass)
1. Sodium N-lauroyl sarcosinate 10.0
2. Sodium N-cocoyl methyl taurate 3.0
3. Lauric acid 3.0
4. Myristic acid 1.5
5. (Acrylates/steareth-20 methacrylate) copolymer 5.0
6. Potassium hydroxide 1.8
7. Dimethyldiallylammonium chloride/acrylamide copolymer liquid 0.15
8. Tranexamic acid 0.2
9. Dipotassium glycyrrhizinate 0.2
10. Isopropylmethylphenol 0.1
11. Fennel extract 0.2
12. Apple fruit extract 0.1
13. Bilberry fruit extract 0.1
14. Artichoke flower extract 0.05
15. Rice bran extract 0.05
16. Water-soluble collagen 1.0
17. Squalane 2.0
18. Glycerin 3.0
19.1,3-BG2.0
20. Phenoxyethanol Appropriate amount 21. Sodium benzoate Appropriate amount 22. Tetrasodium edetate appropriate amount23. Perfume Appropriate amount 24. Purified water Remainder

Prescription example 3 (shaving gel)
(Component name) (% by mass)
1. Potassium N-cocoylglycine 15.0
2. Sodium N-cocoyl methyl taurate 3.0
3. Lauric acid 2.0
4. Myristic acid 5.0
5. Lauryl hydroxysultaine 2.0
6. Hydroxypropyl methylcellulose 3.0
7. Dipotassium glycyrrhizinate 0.2
8. Isopropylmethylphenol 0.1
9. Fennel extract 0.2
10. Apple fruit extract 0.1
11. Bilberry fruit extract 0.1
12. Artichoke flower extract 0.05
13. Rice bran extract 0.05
14. Coix seed extract 0.3
15. Peony root extract 0.05
16. Pomegranate peel extract 0.05
17. Hamamelis leaf extract 0.05
18. Water-soluble collagen 1.0
19. Hyaluronic acid Na 0.3
20. Glyceryl glucoside 2.0
21. Glycerin 3.0
22.1,3-BG 2.0
23. Citric acid 0.05
24. Sodium citrate 0.1
25. Lavender oil 0.015
26. orange oil 0.2
27. Bergamot oil 0.015
28. Phenoxyethanol Appropriate amount 29. Sodium benzoate Appropriate amount 30. Tetrasodium edetate appropriate amount31. Purified water Remainder

Claims (4)

A gel skin cleanser composition comprising the following components (A) to (D) and having a viscosity of 5,000 to 100,000 mPa·s at 25°C.
(A) an anionic surfactant containing a carboxyl group and/or a sulfonic acid group (B) an alkyl acrylate/alkyl methacrylate/polyoxyethylene copolymer and/or a cellulose thickener (C) 1 or 2 Fruit extract of seeds or more (D) 1 or 2 or more plant extracts extracted from parts other than fruits 2. The gel-type skin cleanser composition according to claim 1, wherein the component (A) is one or more selected from fatty acid salts and N-acyl amino acid surfactants. 3. The gel skin cleanser composition according to claim 1, wherein the component (C) is one or more selected from fennel fruit and apple fruit. 4. The gel skin wash according to any one of claims 1 to 3, wherein the component (D) is one or more plant extracts selected from rice bran, pearl barley seed and peony root. agent composition.