JP4776987B2 - Cleansing cosmetics - Google Patents

Description

  The present invention is one or more selected from the group consisting of (A) α-monoalkyl polyglyceryl ether, (B) α-monoalkenyl polyglyceryl ether and (C) α-monohydroxyalkyl polyglyceryl ether having a specific structure. The present invention relates to a cleansing cosmetic composition excellent in removal of makeup cosmetics, characterized by containing an alkyl polyglyceryl ether.

  In the cosmetics field, cleansing compositions for makeup removal include lotions containing creams, milky liquids, oils, oily gels, etc. with lots of oils, or lotions containing no or a small amount of oils. There are various types, such as a shape and a water gel. However, the oil-blended type has oily components left, so it needs to be washed again with a facial cleanser, etc., and has poor cleansing power and usability when the skin is wet, especially for use in bathrooms. It is unsuitable. In addition, the type in which no oil agent is blended or a trace amount is blended has a problem that the oily feeling after cleansing is small but the cleansing power is weak. In order to solve this problem, polyoxyethylene fatty acid esters, polyhydric alcohols or glycol ethers, water-based gel detergents containing water-soluble polymers (see, for example, Patent Document 1) have been reported. Detergency was not obtained.

JP-A-8-283123

  Therefore, the purpose of this study is to easily adjust to makeup stains, exhibiting excellent cleansing power even when the skin is wet or not wet, leaving no oily feeling after washing with water, and feeling refreshed It is to provide a good cleansing cosmetic.

  As a result of intensive research, the inventors of the present invention have a composition containing alkyl polyglyceryl ethers having a specific structure, which has excellent cleansing power even when the skin is wet, and does not leave an oily feeling after washing with water. It was found that it was a cleansing cosmetic material with a good feeling of use, and the present invention was completed.

［但し、式中、Ｒはアルキル基、アルケニル基、ヒドロキシアルキル基で直鎖状あるいは分岐状であることを問わない、ｎは２〜１０の整数を表す。］により表される（Ａ）α−モノアルキルポリグリセリルエーテル、（Ｂ）α−モノアルケニルポリグリセリルエーテル、（Ｃ）α−モノヒドロキシアルキルポリグリセリルエーテルの群から選ばれる１種もしくは２種以上のアルキルポリグリセリルエーテルを含有することを特徴とするクレンジング用化粧料を提供するものである。 That is, the present invention relates to the general formula (1)

[In the formula, R is an alkyl group, an alkenyl group, or a hydroxyalkyl group, whether linear or branched, and n represents an integer of 2 to 10. ] (A) α-monoalkyl polyglyceryl ether, (B) α-monoalkenyl polyglyceryl ether, (C) α-monohydroxyalkyl polyglyceryl ether, or one or more alkyl polyglyceryl ethers It is intended to provide a cleansing cosmetic characterized by containing.

  The cleansing cosmetic composition of the present invention easily adapts to makeup stains, exhibits excellent cleansing power even when the skin is wet or not wet, does not leave an oily feeling after washing with water, and is used refreshingly It is excellent in feeling.

  The alkylpolyglyceryl ether of the present invention has a specific structure represented by the general formula (1).

  R in the general formula (1) is not particularly limited as long as it is an alkyl group, an alkenyl group, or a hydroxyalkyl group, and is linear or branched, but is linear or branched having 8 to 18 carbon atoms. An alkyl group is preferable, and a linear alkyl group having 8 to 14 carbon atoms is particularly preferable. Preferable examples of such an alkyl group include octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, and tetradecyl group. Further, n in the formula (1) is not particularly limited as long as it is an integer of 2 to 10, but is preferably 4 to 10, and more preferably 8 to 10.

  As a method for producing polyglycerol monoalkyl ether, in the presence of a basic catalyst, a method in which glycidol is added to and reacted with an aliphatic alcohol so that the molar ratio of the alcohol / glycidol is specified; Examples thereof include a method of reacting an olefin epoxide, a method of opening a ring of alkyl glycidyl ether using polyglycerin in the presence of an acid catalyst or an alkali catalyst, but are not particularly limited. Preferred examples of such alkyl polyglyceryl ether include decaglycerin monooctyl ether, decaglycerin monodecyl ether, decaglycerin monododecyl ether, decaglycerin monotetradecyl ether, octaglycerin monooctyl ether, octaglycerin monodecyl ether, octadecyl ether Glycerol monododecyl ether, octaglycerin monotetradecyl ether, hexaglycerin monooctyl ether, hexaglycerin monodecyl ether, hexaglycerin monododecyl ether, hexaglycerin monotetradecyl ether, tetraglycerin monooctyl ether, tetraglycerin monodecyl ether, tetra Glycerol monododecyl ether, tetraglycerin monotetradecyl ether Etc., and more preferably, decaglycerin dodecyl ether, octaglycerol mono dodecyl ether, hexaglycerin mono-dodecyl ether, a tetraglycerol monododecyl ether.

  The alkyl polyglyceryl ether of this research preferably contains 50% or more, more preferably 70% or more of the monoalkyl polyglyceryl ether represented by the general formula (1).

  The blending amount of the polyglycerin alkyl ether is not particularly limited, but is preferably 0.01 to 80% by weight, more preferably 0.1 to 50% by weight in the cleansing cosmetic, Preferably it is 1-30 weight%.

  In the present invention, the object can be achieved by blending the polyglycerin alkyl ether.

  Moreover, in the cleansing cosmetic composition of this research, it is preferable from the viewpoint of usability and usability to incorporate a polymer compound in addition to the above-mentioned mandatory components.

  The polymer compound used in this study is preferably water-soluble, plant-based natural polymers such as carrageenan and guar gum, microbial natural polymers such as xanthan gum, animal-based natural polymers such as casein and gelatin, carboxymethylcellulose, Cellulose synthetic polymers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, starch-based synthetic polymers such as carboxymethyl starch, vinyl-based synthetic polymers such as polyvinyl alcohol, polyvinylpyrrolidone, sodium polyacrylate, carboxyvinyl polymer, polyethylene glycol, etc. Is mentioned.

  Of these polymer compounds, polyethylene glycol, carrageenan, carboxyvinyl polymer, hydroxyethyl cellulose and the like are preferable.

  The cleansing cosmetic of the present study should contain 0.1 to 50% by weight, preferably 0.1 to 10% by weight, and more preferably 0.3 to 3% by weight of the polymer compound.

  The cleansing cosmetic of this research may be of any type such as lotion, solution, emulsion, cream, gel, etc. In this case, it is preferable to use water as the liquid medium, Is preferably 10 to 95% in the makeup remover. From the viewpoint of usability, cream type and gel type are preferable.

  When the cleansing cosmetic composition of the present invention is diluted to 10% by weight and water is diluted to 90% by weight, the pH is preferably 4 to 10, particularly 5 to 9.

  In addition to the above-described components, other components can be appropriately blended in the cleansing cosmetic of the present invention within a range that achieves the object of the present invention. For example, nonionic surfactants other than the polyglycerin monoalkyl ether of the present invention, anionic surfactants, amphoteric surfactants, alcohols, lower alcohols, powders, antioxidants, antioxidant aids, UV absorption One or more selected from the group of agents, moisturizers, anti-inflammatory agents, preservatives, pH adjusters, animals, plants, fish shellfish, microorganism-derived extracts, fragrances and the like may be used as necessary. .

  The nonionic surfactant other than the polyglycerin monoalkyl ether of the present invention is not particularly limited, but is a surfactant having no ionizing group as a hydrophilic group, for example, glycerin fatty acid ester, polyglycerin. Fatty acid ester, polyalkylene glycol fatty acid ester, sorbitan fatty acid ester, sugar fatty acid ester, pentaerythritol fatty acid ester, polyoxyalkylene hydrogenated castor oil fatty acid ester, fatty acid alkanolamide, polyoxyalkylene glycol, polyoxyalkylene glycol and monovalent or polyvalent Ester with alcohol, polyoxyalkylene sugar ether, condensate of fatty acid amide and polyoxyalkylene glycol, condensate of aliphatic amine and polyoxyalkylene glycol, alcohol Le or alkenyl polyglycosides, and the like.

  Although it does not specifically limit as an anionic surfactant, Polyoxyethylene alkyl ether sulfate, alkyl sulfate ester salts, alkylbenzene sulfonates, alpha-olefin sulfonates, amino acid surfactants including glutamic acid , N-acylmethyltalphosphate, alkylphosphate, and the like.

  The amphoteric surfactant is not particularly limited, and examples thereof include various surfactants such as carboxybetaine type, imidazolinium type, sulfobetaine type, and alanine type amphoteric surfactant.

  Although it does not specifically limit as a lower alcohol, Ethanol, propyl alcohol, ethylene glycol, diethylene glycol etc. are mentioned.

  Although it does not specifically limit as a powder component, For example, talc, kaolin, mica, sericite (sericite), muscovite, phlogopite, synthetic mica, safmica, biotite, lithia mica, barkum Light, magnesium carbonate, zirconium silicate, aluminum silicate, barium silicate, calcium silicate, zinc silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate , Fluorapatite, hydroxyapatite, ceramic powder, activated carbon, medicinal charcoal, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, and the like. Examples of organic powder include polyamide resin powder (nylon) Powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powders, and cellulose powders.

  Although it does not specifically limit as antioxidant, Vitamin E, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters, etc. are mentioned. Antioxidant aids include ascorbic acid, phytic acid, kephalin, maleic acid and the like, but the blending components are not limited to these.

  The ultraviolet absorber is not particularly limited, but 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid and salts, benzophenone derivatives such as dihydroxydimethoxybenzophenone, paraaminobenzoic acid Paraaminobenzoic acid derivatives such as ethyl paraaminobenzoate, ethyl paramethoxycinnamate, isopropyl paramethoxycinnamate, octyl paramethoxycinnamate, methoxycinnamate derivatives, octyl salicylate, phenyl salicylate, urocanic acid and derivatives, 4-tert -Butyl-4'-methoxydibenzoylmethane, 2- (hydroxy-5'-methylphenyl) benzotriazole, methyl anthranilate and the like.

  Although it does not specifically limit as a humectant, Glycerin, propylene glycol, 1, 3- butylene glycol, sorbitol, sodium lactate, pyrrolidone carboxylic acid, its salt, etc. are mentioned.

  The anti-inflammatory agent is not particularly limited, and examples thereof include glycyrrhizic acid and derivatives thereof, glycyrrhetinic acid and derivatives thereof, allantoin, hydrocortisone acetate, and azulene.

  The preservative is not particularly limited, and examples thereof include methyl paraben, propyl paraben, and phenoxyethanol.

  Although it does not specifically limit as a pH adjuster, Citric acid, hydrochloric acid, a sulfuric acid, phosphoric acid, sodium hydroxide, ammonia, etc. are mentioned.

  Extracts derived from animals, plants, fish and shellfish, and microorganisms are not particularly limited. For example, tea extract, aloe extract, ginkgo biloba extract, assembly extract, mugwort extract, garlic extract, oxon extract, rosemary extract, loofah Examples include extracts such as extracts, placenta extracts, lactic acid bacteria culture extracts, seaweed extracts, and the like.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated further more concretely, this invention is not limited only to this Example.

Examples will be described.
Examples Cleansing cosmetics were prepared according to conventional methods according to the compositions of Examples 1 to 10 and Comparative Examples 1 to 10 shown in the following table, and evaluated based on the following evaluation criteria. The results are shown in Tables 1-2.

(Evaluation method and evaluation criteria)
1) Detergency (not wet)
Lipstick was applied to the forearm, and about 0.5 g of the prepared cosmetic was taken by hand, and the degree of lipstick stain removal after massaging 10 times was visually evaluated.
Evaluation ◎: Completely dropped ○: Almost dropped △: A little remained ×: Almost not dropped 2) Detergency (wet state)
After the lipstick was applied to the forearm, the arm was wetted with water, and about 0.5 g of the prepared cosmetic was picked up in hand, and the degree of lipstick stain removal after massaging 10 times was visually evaluated.
Evaluation ◎: Completely dropped ○: Almost dropped △: A little remained ×: Almost not dropped 3) Refreshing feeling after washing Take the prepared cosmetic on the back of the hand, and feel the skin after washing evaluation Sensory evaluation was performed.
◎: Very refreshing ○: Refreshing △: Somewhat slimy ×: There is slimy

  As is clear from the examples, the cleansing cosmetic composition of the present invention easily adjusts to makeup stains, exhibits excellent cleansing power even when the skin is wet or not wet, and feels oily after washing with water. There is no remaining, and it has a refreshing feeling.

Claims (2)

  A cleansing cosmetic composition comprising decaglycerin monododecyl ether.   A cleansing cosmetic comprising the cleansing cosmetic composition according to claim 1.