JPH10273434A - Skin cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject skin cleaner that is excellent in the effect of removing stains or soils from skin and enables the process of the stain removal to be visually realized by admixing a specific vinyl polymer and a specific methylammonium salt to the cleaner. SOLUTION: This objective skin cleaner comprises (A) an anionic water-soluble polymer, namely a carbon-vinyl polymer (as an acidic polymer prepared by monomers mainly containing acrylic acid) and (B) an alkyltrimethylammonium salt, preferably bearing an alkyl group of 12-22 carbon atoms (as lauryltrimethylammonium chloride and/or dialkyldimethylammonium bromide). The gel (hydrogel) formed by contact between the component A and the component B preferably shows a pH of <=3. The amounts of the component A is 0.3-5.0 wt.% based on the cleaner, while the component B is 0.1-3.0 wt.%. This composition shows excellent skin-cleaning effect and the skin is excellent in smoothness, after the cleaner is rinsed or wiped off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD [0001] The present invention belongs to the technical field related to skin cleansing agents. More specifically, it belongs to the technical field of skin cleansing agents that produce slimey aggregates when rubbed on the skin, and has an excellent effect of removing dirt from the skin, and has a smooth skin condition after rinsing or wiping. The present invention relates to a skin cleanser which has excellent properties and allows the user to visually feel the process of removing dirt.

[0002]

BACKGROUND OF THE INVENTION Removing skin stains is the most fundamental step in skin care, and numerous forms of skin cleansers are on the market. Specifically, a cleaning agent and a face wash sold under the names of cleansing foam, cleansing gel, cleansing cream and the like are typical examples. Users of these skin cleansers should be able to feel the refreshing feel obtained after rinsing or wiping with them, or by visually confirming that makeup has fallen, There is a strong tendency to recognize the effect. Of course, by using an appropriate cleaning agent, a substantially sufficient stain removing effect can be obtained, but on the other hand, as a means of more positively enjoying the cosmetic act of "removing stains", visual There is a need for a skin cleanser that can realize the process of removing dirt.

[0003] As a skin cleansing agent that can visually realize the process of removing dirt, a dirt-like aggregate containing dirt gradually forms on the skin as it is rubbed on the skin. A skin cleanser that can clean the skin by brushing off or rinsing has been considered ideal. A typical skin cleanser for realizing this is a skin cleanser in the form of a mixture of an emulsified composition such as a cream with a large amount of powder. The skin cleanser in this dosage form is applied on the skin and rubs on the skin even after the water evaporates,
It is a skin cleanser that uses various types of powders by using a combination of types and amounts of oils and powders. .

[0004]

However, in this cream type skin cleanser, no matter how the combination and type of the oil and powder are devised, even when the light weight is initially used, the point at which agglomerates are formed can be obtained. The problem is that the cream is inherently creamy, so the feeling that the cream hardens and agglomerates is inevitable, and the sensation that the dirt on the skin is also agglomerated at the same time is poor. Is accompanied.

[0005] The problem to be solved by the present invention is to provide a skin cleansing agent which produces slime-like agglomerates when rubbed on the skin, has an excellent effect of removing skin stains, and has an effect of washing and wiping the skin. It is an object of the present invention to provide a skin cleansing agent which is excellent in lubricity and which allows the user to visually recognize the process of removing dirt.

[0006]

Means for Solving the Problems As a result of intensive studies for solving the problems, the present inventors have found that hydrogels formed by contacting a carboxyvinyl polymer with a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt are obtained. The skin cleanser which contains in the system forms a scaly agglomerate when rubbed on the skin, has an excellent effect of removing dirt on the skin, and also has a lubricated skin condition after washing and wiping. Of course, since the dosage form is transparent or translucent, the generation of slime-like aggregates is more dramatic than that of the cream type, and the process of removing stains can be visually realized. The present inventors have found that it is a skin cleanser, and have completed the present invention.

That is, the present inventor provides the following invention in the present application. Claim 1 provides a skin cleanser comprising a carboxyvinyl polymer and a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt.

[0008] In the second aspect, the pH of the gel formed by contacting the carboxyvinyl polymer and the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt in the skin cleanser according to the first aspect is 3 or less. Provide a skin cleanser.

In claim 3, the alkyl group constituting the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt has 12 to 22 carbon atoms.
The skin cleanser according to claim 1 or 2 is provided below.

In the fourth aspect, the skin cleansing composition according to any one of the first to third aspects, wherein the content of the carboxyvinyl polymer is 0.3% of the skin cleansing composition.
Provided is a skin cleanser that is not less than 5.0 wt% and not more than 5.0 wt%.

[0011] In the fifth aspect, the total amount of the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt in the skin cleanser according to any one of the first to fourth aspects is less than that of the skin cleanser. Provided is a skin cleanser that is 0.1% by weight or more and 3.0% by weight or less.

[0012]

Embodiments of the present invention will be described below. The skin cleansing composition of the present invention comprises a carboxyvinyl polymer as an anionic water-soluble polymer and a hydrogel formed by contact with a cation, a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt. It is a skin cleanser that achieves the desired effect by utilizing the formation of slime-like aggregates gradually while being rubbed on the skin.

The carboxyvinyl polymer, which is an anionic water-soluble polymer involved in the formation of the hydrogel, is an acidic polymer compound mainly formed by polymerization of acrylic acid.
Various grades are commercially available depending on the degree of polymerization and the degree of crosslinking, and any type of carboxyvinyl polymer used in the present invention is possible.

[0014] Specifically, BFGoodrich's Carbopol series; Sumitomo Seika's AqupecHV series; Nippon Pure Chemicals 'Junron PW series; Wako Pure Chemicals' Hibiswako series, etc. Commercial products can be incorporated in the skin cleanser of the present invention.

A nonionic water-soluble polymer, which is an embodiment of another water-soluble polymer in an electrostatic form, such as methylcellulose or hydroxypropylcellulose, may be brought into contact with the above-mentioned cation and blended into a skin cleanser. It is not preferable because no scaly aggregates are generated. Further, even when an anionic water-soluble polymer, such as xanthan gum or carboxymethyl cellulose, which is another embodiment, is brought into contact with the above-mentioned cation, a stable hydrogel is not formed, which is not preferable.

However, as described later, water-soluble polymers other than the carboxyvinyl polymer, as well as these other electrostatic polymers, may be used as auxiliary components in the cleaning composition of the present invention, if necessary. The compounding is not prevented.

The pH of the hydrogel formed by contacting the carboxyvinyl polymer with the anion is 3
The following is preferred. In the region where the pH exceeds 3, the carboxyvinyl polymer and the cation form a complex due to electrostatic interaction, and aggregation of the complex is formed in the system, so that a stable hydrogel tends not to be obtained. Becomes strong, which is not preferable.

In this sense, the carboxyvinyl polymer used in the present invention is in an unneutralized (acidic) state in the system.
It is preferable to mix them. For example, if a carboxyvinyl polymer calcium / potassium salt is added to the system, a complex is formed in the system as described above unless a pH adjuster or the like is added, which is not preferable.

The compounding amount of the carboxyvinyl polymer in the skin cleanser of the present invention is preferably from 0.3% by weight to 5.0% by weight of the skin cleanser.

If the amount is less than 0.3% by weight of the skin cleansing agent, a gel having a sufficient viscosity is not formed, which is not preferable. If the amount is more than 5.0% by weight, a hydrogel is formed. Is too high, which undesirably impairs the feeling of use of the skin cleanser of the present invention.

In the skin cleanser of the present invention, a hydrogel is formed in the system by bringing a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt into contact with the carboxyvinyl polymer as a cation.

The monoalkyltrimethylammonium salt and / or dialkyldimethylammonium salt may be in any form as long as it can be dissolved in water or a water / alcohol mixture, and may be in the form of a halide such as chloride or bromide. Is common. When a metal ion such as a calcium ion or a magnesium ion is in the form of a cation, it is not preferable because a stable hydrogel composition cannot be obtained even when the metal ion is brought into contact with the carboxyvinyl polymer.

The alkyl group constituting the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt preferably has 12 to 22 carbon atoms. When the number of carbon atoms is less than 12, the scale-like aggregates generated when the skin cleansing agent of the present invention is rubbed on the skin tend to be unclear, and when the number of carbon atoms is more than 22, Hydrogels obtained by contact with a carboxyvinyl polymer tend to have reduced stability.

The above monoalkyltrimethylammonium salt and / or dialkyldimethylammonium salt is
What was manufactured using a publicly known method can be used for the skin cleansing agent of the present invention, or a commercial product can be used.

The total amount of the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt in the skin cleanser of the present invention is 0.1% of the skin cleanser.
It is preferable that the content is not less than 3.0% by weight and not more than 3.0% by weight. If the total amount is less than 0.1% by weight of the skin cleanser, the scale-like aggregates generated when the skin cleanser of the present invention is rubbed on the skin tend not to be clear, and the total weight is 3.0%. %, There is no increase in the generation of aggregates commensurate with the increase in the amount.

In the skin cleanser of the present invention, in addition to the above-mentioned constituents, if necessary, various components generally incorporated in cosmetics can be incorporated as long as the desired effects of the present invention are not hindered. . For example, the skin cleanser of the present invention can take various forms and forms that can be used as the skin cleanser, such as transparent to translucent gels and gel creams. It is possible to mix a base component according to the form and form, and when imparting any medicinal effect to the skin cleansing agent of the present invention, compounding a medicinal component according to the medicinal effect in the skin cleansing agent of the present invention. Can be.

As these components, for example, oily components,
Surfactants, moisturizers, higher alcohols, sequestering agents, natural and synthetic polymers, water-soluble and oil-soluble polymers, ultraviolet absorbers, blood circulation enhancers, various extracts, inorganic and organic pigments, inorganic and organic clays Coloring agents such as inorganic and organic pigments and organic dyes treated with minerals, metallic soaps or silicones, preservatives, antioxidants, pigments, thickeners, p
H regulators, fragrances, cooling agents, antiperspirants, bactericides, skin activators, and the like.

Examples of the oil component include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern oil, castor oil, linseed oil Oil, safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, sinagiri oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin,
Glycerin trioctanoate, glycerin triisopalmitate, cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, sheep tallow, hydrogenated tallow, palm kernel oil, lard, beef tallow, mokuro kernel oil, hydrogenated Oil, beef tallow, mokuro, hardened castor oil, beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, montan wax, nukarou, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, isopropyl lanolin fatty acid, laurin Hexyl acid, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, liquid paraffin Quinone, ozokerite, squalene, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax and the like.

Examples of the lipophilic nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, and pentane Sorbitan fatty acid esters such as diglycerol sorbitan-2-ethylhexylate and diglycerol sorbitan tetra-2-ethylhexylate; glycerin mono-cottonseed oil fatty acid, glycerin monoerucate, glycerin sesquioleate, glyceryl monostearate, α, α'-olein Polyglycerin fatty acids such as glyceryl pyroglutamate and glyceryl monostearate; propylene glycol fatty acids such as propylene glycol monostearate Esters: hydrogenated castor oil derivatives, glycerin alkyl ethers and the like.

Examples of the hydrophilic nonionic surfactant include POE sorbitan fatty acid esters such as POE sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate; and POE-sorbit. Monolaurate, POE-Sorbit monooleate, POE-Sorbit pentaoleate,
POE sorbite fatty acid esters such as POE-sorbitol monostearate; POE-glycerin monostearate, PO
POE glycerin fatty acid esters such as E-glycerin monoisostearate and POE-glycerin triisostearate; POE fatty acid esters such as POE monooleate, POE distearate, POE monodioleate, ethylene glycol cysteate; POE lauryl ether, POE
Oleyl ether, POE stearyl ether, POE behenyl ether, POE2-octyldodecyl ether, POE
POE alkyl ethers such as cholestanol ether;
POE Alkyl phenyl ethers such as POE octyl phenyl ether, POE nonyl phenyl ether, POE dinonyl phenyl ether; Pluronics such as bruronic; POE / POP cetyl ether, POE / POP2-decyltetradecyl ether, POE / POP monobutyl ether , POE / POP hydrogenated lanolin, POE / POP alkyl ethers such as glycerin ether; Tetronic, etc., tetra-POE / tetra-POP ethylenediamine condensates; POE castor oil, POE hardened castor oil, POE hardened castor oil mono POE castor oil derivatives such as isostearate, POE hydrogenated castor oil triisostearate, POE cured castor oil monopyroglutamic acid monoisostearate diester, POE hydrogenated castor oil maleic acid; POE beeswax lanolin such as POE sorbitol beeswax Derivative; palm Alkanolamides such as fatty acid diethanolamide, lauric acid monoethanolamide, and fatty acid isopropanolamide; POE propylene glycol fatty acid ester, POE alkylamine, POE fatty acid amide, sucrose fatty acid ester, POE nonylphenylformaldehyde condensate, alkylethoxydimethylamine oxide, And trioleyl phosphoric acid.

Examples of the anionic surfactant include a soap base, a fatty acid soap such as sodium laurate and sodium palmitate; sodium lauryl sulfate;
Higher alkyl sulfates such as lauryl sulfate K; POE
Alkyl ether sulfates such as triethanolamine lauryl sulfate and POE sodium lauryl sulfate; N-acyl sarcosine acids such as sodium lauroyl sarcosine; N-myristoyl-N-methyl taurine sodium; coconut oil fatty acid methyl tauride sodium; lauryl methyl tau Higher fatty acid amide sulfonates such as sodium lid; phosphate ester salts such as sodium POE oleyl ether phosphate and POE stearyl ether phosphate; di-2-
Sulfosuccinates such as sodium ethylhexylsulfosuccinate, monolauroylmonoethanolamide sodium polyoxyethylene sulfosuccinate, sodium lauryl polypropylene glycol sodium sulfosuccinate: sodium linear dodecylbenzenesulfonate, triethanolamine linear dodecylbenzenesulfonate, lineardodecylbenzenesulfonate Alkylbenzenesulfonates such as monosodium N-lauroylglutamate;
N-acyl glutamates such as disodium N-stearoylglutamate and monosodium N-myristoyl-L-glutamate; higher fatty acid ester sulfates such as hydrogenated coconut oil fatty acid sodium glycerin sulfate; sulfated oils such as funnel oil; POE alkyl Ether carboxylic acid, POE alkyl allyl ether carboxylate, α-olefin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate, higher fatty acid alkylolamide sulfate, sodium lauroyl monoethanolamidosuccinate, N-palmitoyl aspartate ditriethanolamine, sodium caseinate and the like.

Examples of the cationic surfactant include alkylpyridinium salts such as poly (N, N'-dimethyl-3,5-methylenepiperidinium chloride) and cetylpyridinium chloride; alkyl quaternary ammonium salts; alkyldimethylbenzylammonium Salts, alkyl isoquinolinium salts, dialkyl morphonium salts, POE alkylamines, alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, benzethonium chloride and the like.

Examples of the amphoteric surfactant include 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium and 2-cocoyl-2-imitazolinium hydroxide-1-carboxyethyl. Imidazoline-based amphoteric surfactants such as roxy disodium salt; betaine-based interfaces such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetate betaine, alkylbetaine, amidobetaine, and sulfobetaine Activators and the like.

Examples of the humectant include polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl.
-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO) PO adduct, Izayobara extract,
An extract of Achillea millefolium, an extract of melilot and the like.

The higher alcohols include, for example, linear alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; monostearyl glycerin ether (bacyl alcohol), 2-decyltetradecinol Lanolin alcohol, cholesterol, phytosterol, hexyl decanol, isostearyl alcohol, octyl dodecanol and the like, and branched alcohols.

Examples of sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, edetate Examples thereof include tetrasodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, and edetic acid.

Examples of natural water-soluble polymers include, for example, arabia gum, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), alge colloid (cassow extract), starch (rice, corn, potato). , Wheat), glycyrrhizic acid, etc .; plant macromolecules; xanthan gum, dextran, succinoglucan, pullulan, etc .;
Animal-based polymers such as casein, albumin, and gelatin are exemplified.

Examples of the semi-synthetic water-soluble polymer include starch-based polymers such as carboxymethyl starch and methyl hydroxypropyl starch; methyl cellulose, nitrocellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, cellulose sodium sulfate, and hydroxypropyl. Cellulose-based polymers such as cellulose, sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder;
Alginic acid polymers such as sodium alginate and propylene glycol alginate are exemplified.

Examples of the synthetic water-soluble polymer include vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether and polyvinyl pyrrolidone; polyoxyethylene polymers such as polyethylene glycol 20,000, 4,000,000 and 600,000; polyoxyethylene polyoxy. Propylene copolymer copolymer-based polymers; acrylic polymers such as sodium polyacrylate, polyethyl acrylate, and polyacrylamide; polyethylene imine, cationic polymers, and the like.

Examples of the inorganic water-soluble polymer include bentonite, silicic acid A1Mg (beegum), laponite, hectorite, silicic anhydride and the like.

Examples of the ultraviolet absorber include paraaminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N, N-dipropoxy PABA ethyl ester, N, N-diethoxy PABA ethyl ester, N, N-dimethyl PABA ethyl Esters, N, N-dimethyl PABA butyl ester and other paraaminobenzoic acid-based ultraviolet absorbers; homomenthyl-N-acetylanthranilate and other anthranilic acid-based ultraviolet absorbers; amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, Salicylic acid ultraviolet absorbers such as phenyl salicylate, benzyl salicylate, and p-isopropanol phenyl salicylate; octylcinnamate, ethyl-4-isopropylcinnamate, methyl-2,5-diisopropylcinnamate, ethyl-2,4-diisopropylcinnamate , Methyl
-2,4-Diisopropylcinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p-methoxycinnamate, octyl
-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenylcinnamate,
Cinnamic acid ultraviolet absorbers such as 2-ethylhexyl-α-cyano-β-phenylcinnamate and glyceryl mono-2-ethylhexanoyl-diparamethoxycinnamate; 2,4-
Dihydroxybenzophenone, 2,2'-dihydroxy-4-
Methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4 '-Methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octo Xybenzophenone, 4-
Benzophenone UV absorbers such as hydroxy-3-carboxybenzophenone; 3- (4'-methylbenzylidene)-
d, 1-camphor, 3-benzylidene-d, 1-camphor,
Urocanic acid, urocanic acid ethyl ester, 2-phenyl-5-methylbenzoxazole, 2,2'-hydroxy-5-
Methylphenylbenzotriazole, 2- (2'-hydroxy
-5'-t-octylphenyl) benzotriazole, 2- (2'-
Hydroxy-5'-methylphenylbenzotriazole, dibenzarazine, dianisoylmethane, 4-methoxy-4'-t-
Butyldibenzoylmethane, 5- (3,3-dimethyl-2-norbornylidene) -3-pentan-2-one and the like.

Examples of the blood circulation promoter include nonylate valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharistinki, ittamol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, Inositol hexanicotinate, cyclanderate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthin, γ-oryzanol and the like.

Other pharmaceutical ingredients include vitamin A oil,
Retinol, retinol palmitate, inosit, pyridoxine hydrochloride, benzyl nicotinate, nicotinamide, DL-α-tocopherol nicotinate, magnesium phosphate ascorbate, 2-O-α-D-glucopyranosyl-L-ascorbic acid, vitamin D2 (Ergocasiferol), dl-α-tocopherol, acetic acid dl
Vitamins such as α-tocopherol, pantothenic acid and biotin; hormones such as estradiol and ethinyl estradiol; amino acids such as arginine, aspartic acid, cystine, cysteine, methionine, serine, leucine and tryptophan; anti-inflammatory agents such as allantoin and azulene Whitening agents such as arbutin; astringents such as zinc oxide and tannic acid; cooling agents such as L-menthol and camphor; sulfur; lysozyme chloride; pyridoxine chloride;

Examples of various extracts include, for example, dokudami extract, oak extract, melilot extract, edible extract, licorice extract, peony extract, saponosa extract, loofah extract, kina extract, saxifrage extract, clara extract, kohone extract, fennel extract, Primrose extract, rose extract, pheasant extract, lemon extract, sicon extract, aloe extract, shobu root extract, eucalyptus extract, horsetail extract, sage extract, thyme extract, tea extract, seaweed extract, cucumber extract, clove extract, raspberry extract, melissa extract, carrot Extract, horse chestnut extract, peach extract, peach leaf extract, mulberry extract, cornflower extract, hamamelis extract, placenta extract, thymus extract, silk extract, licorice extract Etc. The.

[0045]

Next, the present invention will be described with reference to examples, but the technical scope of the present invention should not be limited by these examples. A. Evaluation of Usability of Skin Cleanser For hydrogel composition containing carboxyvinyl polymer and monoalkyltrimethylammonium salt and / or dialkyldimethylammonium salt, hydrogel containing neither monoalkyltrimethylammonium salt or dialkyldimethylammonium salt Composition,
The usability was evaluated in comparison with a hydrogel composition containing a nonionic thickener and a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt.

[Evaluation Method and Evaluation Criteria] Female Panel 1
The sample of each of Examples and Comparative Examples was rubbed on the face or a part of the body by 0 persons, and the usability was compared. (1) Easiness of formation of slime-like aggregates during rubbing ◎: Eight or more panelists answered that the occurrence of slime-like aggregates was clear ○: Generation of slime-like aggregates 6 to 7 out of 10 panelists answered that was clear Δ: 3 to 5 out of 10 panels answered that generation of plaque-like agglomerates ×: generation of plaque-like agglomerates No more than 2 out of 10 panelists answered that the question was clear

(2) Sensory cleaning effect after rinsing A: Eight or more out of ten panelists answered that skin dirt was well removed O: Six out of ten panelists answered that skin dirt was well removed ~ 7 panelists: 3 to 5 panelists answered that skin dirt was removed well x: 2 panel panelists answered that skin dirt was removed well.

(3) Skin sensation after rinsing A: 8 out of 10 panelists answered that it was smooth ○: 6 to 7 panelists answered that it was smooth Δ: Smooth 3 to 5 panelists out of 10 answered ×: 2 or less panelists answered that they were smooth

[0049] Skin cleansers having the formulations shown in Tables 1 and 2 were prepared, and their usability was evaluated. Table 1 (Basic prescription) ────────────────────────────────── Dipropylene glycol 5.0% by weight POE (60) Hardened castor oil 0.5 Glycerin 1.0 Dimethyl polysiloxane 2.0 Methyl paraben 0.2 Perfume 0.05 Thickener The following cation The following ion-exchanged water balance皮膚 Prepare a skin cleanser with the above basic formula, replacing the thickener and cation with the components shown in Table 2. Was evaluated.
Table 2 also shows the results.

[0050]

[Table 2]

The carboxyvinyl polymer used was Hibiswako 104 (manufactured by Wako Pure Chemical Industries, Ltd.).

The above results show that the carboxyvinyl polymer and the monoalkyltrimethylammonium salt and / or
Alternatively, a hydrogel composition containing a dialkyldimethylammonium salt produces slime-like aggregates when rubbed on the skin, has an excellent sensory skin dirt removing effect, and has a smooth skin condition after rinsing. Although excellent in properties, a hydrogel composition containing neither a monoalkyltrimethylammonium salt or a dialkyldimethylammonium salt, and a monoalkyltrimethylammonium salt using nonionic methylcellulose or hydroxypropylethylcellulose as a thickener and It can be seen that the hydrogel composition combined with / or a dialkyldimethylammonium salt does not generate slime-like aggregates and is inferior in both the sensory cleaning effect and the smoothness after rinsing.

Hereinafter, other formulations of the skin cleanser of the present invention will be described as examples. [Example 6] (Blending components) Blending amount (% by weight) (1) Dipropylene glycol 5.0 (2) Glycerin 3.0 (3) Carboxyvinyl polymer 1.0 [Hibiswako 103 (manufactured by Wako Pure Chemical Industries, Ltd.) (4) Xanthan gum 0.1 (5) Hydroxypropyl methylcellulose 1.5 (6) Cetyltrimethylammonium bromide 0.5 (7) Dilauryldimethylammonium chloride 0.5 (8) Sorbitan monooleate 1 0.0 (9) Vaseline 1.0 (10) Liquid paraffin 5.0 (11) Glycerol tri-2-ethyl hexanoate 2.0 (12) Dimethyl polysiloxane (6cs) 5.0 (13) Ethyl paraben 0 .2 (14) Fragrance 0.05 (15) Deionized water residue

A skin cleanser was prepared by a conventional method. The resulting skin cleanser produces scaly agglomerates when rubbed on the skin, has an excellent sensory skin dirt removal effect, and has a lubricated skin condition after being rinsed off. Was something.

[Example 7] (Blending components) Blending amount (% by weight) (1) Ethyl alcohol 5.0 (2) Propylene glycol 2.0 (3) Carboxyvinyl polymer 2.5 [Carbopol 980 (BF Goodrich) (4) Carboxymethylcellulose 0.1 (5) Myristyltrimethylammonium bromide 2.0 (6) Trisodium edetate 0.05 (7) Polyoxyethylene-modified dimethylpolysiloxane 0.5 (8) Octamethyl Cyclotetrasiloxane 1.0 (9) Methyl paraben 0.1 (10) Fragrance 0.01 (11) Deionized water residue

A skin cleanser was prepared by a conventional method. The resulting skin cleanser produces scaly agglomerates when rubbed on the skin, has an excellent sensory skin dirt removal effect, and has a lubricated skin condition after being rinsed off. Was something.

Example 8 (Blending components) Blending amount (% by weight) (1) 1,3-butylene glycol 6.0 (2) PEG 1500 4.0 (3) POE (25) cetyl alcohol ether 0 (4) Glycerin monostearate 1.0 (5) Stearyl alcohol 1.0 (6) Solid paraffin 1.0 (7) Vaseline 3.0 (8) Squalane 5.0 (9) Butylparaben 0.2 ( 10) Dimethylpolysiloxane (20cs) 3.0 (11) Fragrance 0.3 (12) Carboxyvinyl polymer 0.5 [Hibiswako 105 (manufactured by Wako Pure Chemical Industries)] (13) Behenyltrimethylammonium chloride 0.1 (14) Ion exchange water residue

A skin cleanser was prepared by a conventional method. The resulting skin cleanser produces scaly agglomerates when rubbed on the skin, has an excellent sensory skin dirt removal effect, and has a lubricated skin condition after being rinsed off. Was something.

[0059]

According to the present invention, the effect of removing skin stains is excellent, the skin condition after rinsing and wiping is excellent in lubricity, and the process of removing stains can be visually realized. Thus, there is provided a skin cleansing agent which produces slime-like aggregates when rubbed on the skin.

Claims (5)

[Claims] 1. A skin cleanser comprising a carboxyvinyl polymer and a monoalkyltrimethylammonium salt and / or a dialkyldimethylammonium salt. 2. The skin cleanser according to claim 1, wherein the gel formed by contacting the carboxyvinyl polymer and the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt has a pH of 3 or less. 3. The skin cleanser according to claim 1, wherein the alkyl group constituting the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt has 12 to 22 carbon atoms. 4. The skin cleanser according to any one of claims 1 to 3, wherein the amount of the carboxyvinyl polymer is from 0.3% by weight to 5.0% by weight of the skin cleanser. Some skin cleansers. 5. The skin cleanser according to claim 1, wherein the total amount of the monoalkyltrimethylammonium salt and / or the dialkyldimethylammonium salt is 0.1% by weight of the skin cleanser. % Or more;
A skin cleanser that is 0% by weight or less.