JP2023022566A - Transparent skin cleansing composition - Google Patents

Abstract

To provide a transparent skin cleansing composition that has excellent foamability and foam quality (creaminess), has excellent sebum stain cleaning effect, an excellent refreshing feel during rinsing, and excellent low temperature stability.SOLUTION: A transparent skin cleansing composition contains the following components (A)-(C) with a pH of 9-11: (A) higher fatty acid salt, (B) polyoxyethylene alkyl ether with an HLB value of 13-18, and (C) amino acetic acid betaine-type amphoteric surfactant or sulfobetaine-type amphoteric surfactant.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to a transparent skin cleanser composition, and more particularly, it has good foaming and foam quality (creaminess), has an excellent sebum stain cleansing effect, has an excellent refreshing feeling during rinsing, and has low temperature stability. also relates to an excellent transparent skin cleanser composition.

In recent years, not only women but also men have become more aware of how to care for sweat, sebum, and body odor, and the market for skin cleansers is expanding. It is expected to have the effect of not only removing dust and dirt adhering to it, but also removing even sebum stains on the face and body. Various surfactants have been used in conventional skin cleansers in order to remove sebum stains from the viewpoint of solubility with sebum and the viewpoint of feeling during use.

Specifically, a skin cleanser composition containing an anionic surfactant, a cationic polymer and an oil (see Patent Document 1), an anionic surfactant, a nonionic surfactant and an amphoteric surface A cleansing composition containing an active agent (see Patent Document 2), a liquid skin cleansing composition containing an N-acylamino acid anionic surfactant, an amphoteric surfactant and a polyoxyethylene alkyl ether sulfate ( See Patent Document 3) and the like have been proposed.

However, the cleaning agents disclosed in Patent Documents 1 to 3 have drawbacks such as foaming, deterioration of foam quality (creaminess), and sliminess during rinsing.

JP-A-2004-262838 JP 2019-206568 A Patent No. 6860982

The present invention has been made in view of the above circumstances, and its purpose is to provide good foaming and foam quality (creaminess), excellent sebum stain cleansing effect, excellent refreshing feeling during rinsing, and low temperature stability. To provide a transparent skin cleanser composition which is also excellent in properties.

As a result of intensive studies on the above problems, the inventors have found that a higher fatty acid salt having a pH of 9 to 11, a polyoxyethylene alkyl ether having an HLB value of 13 to 18, a betaine aminoacetate type amphoteric surfactant or By combining a sulfobetaine-type amphoteric surfactant, a transparent skin cleanser composition with good foaming and foam quality (creaminess), an excellent sebum stain cleansing effect, and an excellent refreshing feeling during rinsing can be obtained. The present invention was completed after discovering that it can be obtained.

That is, the present invention provides (A) a higher fatty acid salt, (B) a polyoxyethylene alkyl ether having an HLB value of 13 to 18, and (C) a betaine aminoacetate type amphoteric surfactant or a sulfobetaine type amphoteric surfactant. and having a pH of 9-11.

Preferably, the transparent skin cleanser composition contains 0.05 to 5% of the component (B) in the total mass.

According to the present invention, a transparent skin cleanser composition which foams well and has good foam quality (creaminess), has an excellent sebum stain cleansing effect, has an excellent refreshing feeling during rinsing, and has excellent low-temperature stability. can be provided.

The transparent skin cleanser composition of the present invention will be described in detail below.

[Cleaning agent]
The transparent skin cleanser of the present invention can be used, for example, in body soap, facial cleansing foam, hand soap and the like.

The dosage form of the transparent skin cleanser can be arbitrarily selected from known dosage forms according to its use, purpose of use, and the like. For example, it can be liquid, foam, gel, or the like.

<(A) Component>
The (A) component used in the transparent skin cleanser composition of the present invention is a higher fatty acid salt. This component is added as a component that contributes to foaming, foam quality (creaminess), and refreshing feeling during rinsing.

Component (A) includes, for example, higher fatty acids having 12 to 22 carbon atoms such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid and behenic acid; vegetable oils such as olive oil and cottonseed oil; Animal oils and fats, etc., can be mentioned, and these can be used singly or in combination of two or more.

In the present invention, from the viewpoint of detergency and foaming power, higher fatty acids having 12 to 22 carbon atoms are preferably used, and lauric acid, myristic acid, palmitic acid and stearic acid are more preferably used.

Salts of the component (A) include alkali metal salts and organic amine salts obtained by saponifying or neutralizing higher fatty acids with an alkaline agent. Examples of the alkali agent to be used include inorganic alkalis such as sodium hydroxide, potassium hydroxide, sodium carbonate and potassium carbonate, and organic alkalis such as monoethanolamine, diethanolamine, triethanolamine, trimethylamine and triethylamine.

In the present invention, from the viewpoint of foaming power, it is preferable to use an inorganic alkali, and potassium hydroxide is more preferably used.

The blending amount of component (A) is preferably 1 to 30 mass % (hereinafter simply referred to as "%") in the total composition, more preferably 3 to 25%. When the blending amount is 1% or more, good foamability and foam quality (creaminess) are obtained, and when the blending amount is 30% or less, stability at low temperatures tends to be improved.

<Component (B)>
The component (B) used in the transparent skin cleanser composition of the present invention is a polyoxyethylene alkyl ether having an HLB value of 13-18. This component is added as a component that contributes to sebum stain cleansing effect and low temperature stability. As for (B) component, only 1 type may be used and 2 or more types may be used together.

Component (B) preferably has an HLB value of 13 to 18, more preferably 13 to 16. If the HLB value is 13 or less, the sebum stain cleansing effect and low-temperature stability may decrease, and if it is 18 or more, the sebum stain cleansing effect may decrease.

The number of carbon atoms in the alkyl group of component (B) is preferably 12 to 22, more preferably 12 to 16, from the viewpoint of storage stability. The average number of added moles of ethylene oxide is preferably 2 to 60, more preferably 2 to 30, from the viewpoint of storage stability.

Commercially available products of component (B) include "NIKKOL BL-9EX (Laureth-9)", "NIKKOL BC-10 (Seteth-10)", "NIKKOL BC-15 (Seteth-15)", and "NIKKOL BC-23 (Seteth-15)". 23)”, “NIKKOL BB-20”, “NIKKOL BB-30”, “NIKKOL BO-15V”, “NIKKOL BO-20V” ”, “NIKKOL BS-20” (manufactured by Nikko Chemicals Co., Ltd.) and the like, and these can be preferably used.

The amount of component (B) is preferably 0.05 to 5%, more preferably 0.05 to 3%. When the content of 0 is 0.05% or more, the sebum stain cleansing effect and low temperature stability are good. On the other hand, if it is 5% or less, a refreshing feeling during rinsing is improved.

<Component (C)>
The component (C) used in the transparent skin cleanser composition of the present invention is a betaine aminoacetate type amphoteric surfactant or a sulfobetaine type amphoteric surfactant. This component is added as a component that contributes to foam quality (creaminess) and low-temperature stability. One type can be used alone, or two or more types can be used in appropriate combination.

Examples of the betaine aminoacetate type amphoteric surfactant of component (C) include betaine lauryldimethylaminoacetate, betaine coconut oil alkyldimethylaminoacetate, betaine stearyldimethylaminoacetate and the like. Commercially available products include, for example, "Nissan Anon BL", "Nissan Anon BF" (both manufactured by NOF Corp.), Licavion A-100 (manufactured by Shin Nihon Rika Co., Ltd.), and the like.

Examples of the (C) component sulfobetaine type amphoteric surfactant include coconut oil fatty acid dimethylsulfopropylbetaine, lauryldimethylaminohydroxysulfobetaine, laurylhydroxysulfobetaine and the like. Examples of commercially available products include "Amphitol 20HD" (manufactured by Kao Corporation) and "Ampholex LSB" (manufactured by Miyoshi Yushi Co., Ltd.).

The amount of component (C) is preferably 0.1 to 8%, more preferably 0.5 to 5%. If the blending amount is 0.1% or more, the foam quality (creaminess) is good and the low temperature stability can be improved. On the other hand, if it is 8% or less, a refreshing feeling during rinsing will be good.

The transparent skin cleanser composition of the present invention contains the above components (A) to (C) as essential components and is adjusted to pH 9-11. If the pH is less than 9, crystallization may occur at low temperatures, and if the pH exceeds 11, the foam quality (creaminess) may be reduced and skin irritation may occur. In addition, the measurement of pH is based on JISK6220. A pH adjuster can be appropriately used in the transparent skin cleanser composition of the present invention as long as it does not impair the effects of the present invention. Organic acid salts such as lactate, malate, tartrate, citrate, succinate, salicylate, and benzoate are preferred as pH adjusters.

<Other ingredients>
In addition to the components described above, the transparent skin cleanser composition of the present invention may contain other components, such as anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants, as long as the objects of the present invention are not impaired. Ingredients such as active agents, water-soluble polymer compounds, bioactive ingredients, antioxidants, sequestering agents, preservatives, UV absorbers, fragrances, moisturizers, salts, solvents, neutralizers, insect repellents, enzymes, etc. can be appropriately blended.

Examples of the anionic surfactant include, but are not limited to, potassium N-coconut fatty acid acylglycinate, sodium N-coconut fatty acid acylglycinate, ammonium N-palm kernel fatty acid acylglycinate, and N-coconut oil. Potassium fatty acid acyl glutamate, triethanolamine N-coconut fatty acid acyl glutamate, sodium N-lauroyl glutamate, triethanolamine N-lauroyl glutamate, sodium N-lauroyl alanine, sodium N-stearoyl alanine, sodium lauroyl aspartate, α-lauroyl Sodium sulfonate, sodium myristoyl allyl sulfonate, sodium lauryl naphthalene sulfonate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, sodium polyoxyethylene lauryl ether sulfate, potassium polyoxyethylene coconut oil fatty acid amide ether sulfate, etc. One or two or more may be appropriately selected and used.

Examples of the amphoteric surfactant include, but are not limited to, lauramidopropyl betaine, coconut oil fatty acid amidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, β -Aminopropionate sodium, N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium, etc., and one or more of them may be appropriately selected and used.

Examples of the nonionic surfactant include, but are not limited to, sorbitan monostearate, polyoxyethylene sorbitan triisostearate, decyl glucoside, lauryl glucoside, polyoxyethylene hydrogenated castor oil, polyoxyethylene monoisostea. polyoxyethylene dioleate glyceryl, coconut oil fatty acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid N-methylethanolamide, polyoxyethylene polyoxypropylene glycol, polyethylene glycol monolaurate, polyglyceryl monoalkyl ether, etc. and may be used by appropriately selecting one or more.

Examples of the water-soluble polymer include, but are not limited to, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, polyethylene glycol, highly polymerized polyethylene glycol, polyvinyl alcohol, polyglutamic acid, carboxyvinyl polymer, acrylic acid, Alkyl methacrylate copolymer, alkyl acrylate copolymer, O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl chloride ] guar gum, dimethyldiallylammonium chloride/acrylamide copolymer, acrylamide/acrylic acid/dimethyldiallylammonium chloride copolymer, and the like, and one or more of them may be appropriately selected and used.

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.

Examples of the natural plant extract components, seaweed extract components, and crude drug components include Angelica keiskei leaf extract, Gomacha extract, Altea extract, Aloe extract, Apricot extract, Ginkgo biloba extract, Fennel extract, Oolong tea extract, Agitsu extract, Scutellaria root extract, Phellodendron bark extract, Hypericum extract, Dutch mustard extract, Orange extract, Dried seawater, Seaweed extract, Hydrolyzed wheat powder, Hydrolyzed silk, Chamomile extract, Carrot extract, Kawara mugwort extract, Licorice extract, Kakyoku 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, soapwort extract, hawthorn extract, rhododendron extract, rhizome extract, perilla extract, linden extract, peony extract, Birch extract, horsetail extract, horsetail extract, hawthorn extract, elderberry extract, yarrow extract, mint extract, sage extract, cnidium extract, assembly extract, soybean extract, taisou extract, thyme extract, tea extract, clove extract, chimp extract , Touki extract, Tonin extract, Houttuynia cordata extract, Tomato extract, Natto extract, Carrot extract, Garlic extract, Novara extract, Honey, Hamamelis extract, Hikiokoshi extract, Bisabolol, Loquat extract, Bukuryou extract, Propolis, Loofah extract, Peppermint extract, Bodaiju extract, Hop extract, Madonna lily flower extract, horse chestnut extract, soapberry extract, melissa extract, peach extract, saxifrage extract, yuzu extract, mugwort extract, lavender extract, lemon extract, astragalus extract, rosemary extract, royal jelly extract and the like.

Components other than the natural plant extract components, seaweed extract components, and crude drug components include, for example, deoxyribonucleic acid, collagen, elastin, chitin, chitosan, biopolymers such as hydrolyzed eggshell membranes, amino acids, sodium lactate, and urea. , sodium pyrrolidonecarboxylate, betaine, moisturizing ingredients such as whey, sphingolipids, ceramides, cholesterol, cholesterol derivatives, oily ingredients such as phospholipids, ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, hydrocortisone Anti-inflammatory agents such as vitamins (A, B2, B6, C, D, E), calcium pantothenate, biotin, nicotinamide, vitamins such as vitamin C ester, allantoin, diisopropylamine dichloroacetate, 4-amino Active ingredients such as methylcyclohexanecarboxylic acid, antioxidants such as tocopherol, carotenoids, flavonoids, tannins, lignans, and saponins, cell activators such as α-hydroxy acids and β-hydroxy acids, γ-oryzanol, vitamin E derivatives, etc. Blood circulation promoters, bactericides such as isopropylmethylphenol, triclosan, hinokitiol, and benzalkonium chloride, cooling agents such as l-menthol and mint oil, and wound healing agents such as retinol and retinol derivatives.

EXAMPLES Next, the present invention will be described in detail with reference to Examples, but the present invention is not limited to these. Prior to Examples, test methods and evaluation methods employed in each Example will be described.

(1) Foaming power test (foaming)
80 mL of 1% aqueous solutions of the transparent skin cleanser compositions of Examples and Comparative Examples were placed in a 1,000 mL cylindrical cylinder equipped with a stirrer, stirred at 5,000 rpm for 30 seconds, and then the foam volume was measured. Moreover, the criteria for evaluation were set as follows.
◎: Very good foaming, foam volume 500 mL or more ○: Good foaming, foam volume 400 mL or more, less than 500 mL △: Normal foaming, foam volume 300 mL or more, less than 400 mL ×: Poor foaming, foam volume less than 300 mL

(2) Foam quality and rinsing feel test method A panel of 20 experts tested the foam quality (creaminess) during use and the refreshing feeling during rinsing using the transparent skin cleanser compositions of Examples and Comparative Examples. Each item was sensory evaluated. In addition, the evaluation criteria are as follows.
[Foam quality at the time of use (creaminess)]
◎: Very good The number of subjects who answered that the foam quality (creamy property) was good was 16 or more ○: The number of subjects who answered that the foam quality (creamy property) was good 12 to 15 people The number of subjects who answered that the (creaminess) was good was 8 to 11 ×: Poor The number of subjects who answered that the foam quality (creaminess) was good was less than 8 [refreshing feeling during rinsing]
◎: 16 or more subjects answered that they felt refreshed after rinsing. ○: 12-15 subjects answered that they felt refreshed after rinsing. The number of subjects who answered 8 to 11 ×: Bad The number of subjects who answered that they felt refreshed when rinsing was less than 8

(3) Low temperature stability test (appearance evaluation)
The transparent skin cleanser compositions of Examples and Comparative Examples were filled in glass bottles and allowed to stand at 5° C. for 1 month, and the stability over time was evaluated according to the criteria shown below. Judgment criteria are as follows.
◎: Appearance is transparent and no precipitate ○: Slightly cloudy but no precipitate △: Slightly cloudy with a little precipitate ×: Many precipitates are observed

(4) Sebum cleansing effect Lipid components present in the skin include lipids derived from intercellular lipids of the stratum corneum, such as ceramide and cholesterol, and sebaceous gland-derived lipids such as triglycerides, diglycerides, monoglycerides, free fatty acids, squalene, and wax esters. there is lipid In particular, triglycerides are converted into higher fatty acids by deesterification due to the metabolism of bacteria indigenous to the skin, and then unsaturated fatty acids such as oleic acid and palmitoleic acid are further converted into odorants by oxidative decomposition reactions.

Each transparent skin cleanser composition was prepared with a concentration of 5% by mass, 3% by mass of triglyceride, which is an odor-causing substance, and 93% by mass of purified water, and stirred at room temperature for 30 minutes. After standing still for 30 minutes, the solubilized lower layer was extracted, and the amount of triglyceride uptake was measured using HPLC (high performance liquid chromatograph).

<Analysis conditions>
Equipment: Waters Alliance
Column: CAPCELLPAK C18 MG (4.6×150mm, 5μm)
Mobile phase: A acetonitrile, B isopropanol
Time (min) A B
0 50 50
15 20 80
Temperature: 40°C
Injection volume: 20 μL
Flow rate: 1 mL/min Detector: Photodiode array (PDA), wavelength 200-400 (210.2 nm)

Next, from the obtained analysis results, evaluation was made according to the following evaluation criteria. Judgment criteria are as follows.
◎: triglyceride uptake (quantitative value) is 0.04% or more ○: triglyceride uptake (quantitative value) is 0.025% or more and less than 0.04% △: triglyceride uptake (quantitative value) is , 0.01% or more and less than 0.025% ×: triglyceride uptake amount (quantitative value) is less than 0.01%

Examples 1-13 and Comparative Examples 1-11
Body shampoo compositions having the compositions shown in Tables 1 and 2 were prepared, and foamability, foam quality (creamy), refreshing feeling during rinsing, low-temperature stability (appearance), and sebum stain-cleansing effect when these were used. was investigated, and the results are shown in Tables 1 and 2. In addition, all compounding amounts in the following examples and comparative examples are in mass%.

As is clear from Tables 1 and 2, the body shampoo compositions of Examples 1-13 using the components of the present invention were all found to have superior performance compared to the compositions of Comparative Examples 1-11.

Other formulation examples of the transparent skin cleanser composition of the present invention are given below. For the skin cleanser compositions of these formulation examples, the above-mentioned foamability, foam quality (creaminess), refreshing feeling during rinsing, low-temperature stability (appearance), and sebum stain cleansing effect were examined. bottom.

Formulation Example 1 Body Shampoo (1) Potassium Laurate 8.0 (2) Potassium Myristate 5.0 (3) Potassium Palmitate 3.0 (4) Potassium Stearate 0.5 (5) Ceteth-15 0.5 (6) Beheneth-20 0.1 (7) Oleth-20 0.5 (8) Steareth-20 0.1 (9) Lauryl hydroxysulfobetaine 2.0 (10) Coconut fatty acid amidopropyl betaine 0. 5 (11) glycerin 1.0 (12) glycosyl trehalose 0.5 (13) sodium polyoxyethylene lauryl ether sulfate 1.5 (14) coconut oil fatty acid monoethanolamide 3.0 (15) PEG-25 stearate 0 .1 (16) hydroxypropyl methylcellulose 0.4 (17) dimethyldiallylammonium chloride/acrylamide copolymer 0.3 (18) cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol 0.1 (19) l-menthol 0.1 (20) Mentha oil 0.1 (21) Tea leaf extract 0.5 (22) Oyster tannin 0.01 (23) Sapindus trifoliatus fruit extract 0.01 (24) Isopropylmethylphenol 0.1 (25) Disodium edetate 0.2 (26) Perfume 0.7 (27) Purified water Remainder (pH 10.2)

A body shampoo having the above composition was prepared by a conventional method and evaluated for foamability, foam quality (creaminess), refreshing feeling when rinsing, low temperature stability (appearance), and sebum stain cleansing effect. Good results (◎ or 〇) were obtained.

Formulation Example 2 Foaming Body Shampoo (1) Potassium Laurate 3.0 (2) Potassium Myristate 1.0 (3) Ceteth-15 0.5 (4) Beheneth-20 0.1 (5) Oleth -20 0.5 (6) Steareth-20 0.1 (7) Coconut oil alkyldimethylaminoacetic acid betaine 2.0 (8) Lauramidopropyl betaine 2.0 (9) Glycerin 1.0
(10) DPG 3.0 (11) Laureth-100 2.5 (12) PEG-25 stearate 0.1 (13) Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol 0.1 (14) l- Menthol 0.1 (15) Sugar cane extract 0.1 (16) Scutellaria root extract 0.1 (17) Peony root extract 0.1 (18) Isopropylmethylphenol 0.1 (19) Phenoxyethanol 0.5 (20) Edet Disodium acid acid 0.2 (21) Perfume 0.4 (22) Purified water Balance (pH 9.7)

A body shampoo having the above composition was prepared by a conventional method and evaluated for foamability, foam quality (creaminess), refreshing feeling when rinsing, low temperature stability (appearance), and sebum stain cleansing effect. Good results (◎ or 〇) were obtained.

Claims (2)

A transparent skin cleanser composition comprising the following components (A) to (C) and having a pH of 9 to 11.
(A) Higher fatty acid salt (B) Polyoxyethylene alkyl ether having an HLB value of 13 to 18 (C) Aminoacetic acid betaine type amphoteric surfactant or sulfobetaine type amphoteric surfactant 2. The transparent skin cleanser composition according to claim 1, wherein said component (B) accounts for 0.05 to 5% of the total weight.