Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/73—Polysaccharides
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/10—Washing or bathing preparations

Definitions

• the present invention relates to a cosmetic containing a specific amount of dextrin and a polysaccharide thickener and a specific polyacrylamide compound.
• the spread becomes heavy and it is absorbed by the roughness such as keratin plugs and pores, and the smoothness of the skin after washing can be realized.
• the thickener in the cosmetics, there may be a problem of washing off and a smooth feeling, stickiness and the like may be felt after washing, and a refreshing feeling after washing may be insufficient.
• the cosmetic does not contain a thickener in order to ensure a refreshing feeling after washing, the smoothness of the skin after washing is reduced.
• Patent Document 1 discloses a skin cleansing composition containing a polysaccharide powder, and discloses that this skin cleansing composition is hypoallergenic, highly safe, and has an excellent keratin plug removing function. However, there is no disclosure about the improvement of the refreshing feeling such as stickiness by containing the thickener.
• Patent Document 2 also discloses a composition for external use on the skin containing a whitening ingredient, a thickener, and a compound having a hydantoin skeleton.
• a composition for external use on the skin containing a whitening ingredient, a thickener, and a compound having a hydantoin skeleton.
• the present inventors use a cosmetic containing a specific amount of dextrin and a polysaccharide thickener and a specific polyacrylamide compound to make the skin smooth after washing and refresh after washing.
• a cosmetic containing a specific amount of dextrin and a polysaccharide thickener and a specific polyacrylamide compound to make the skin smooth after washing and refresh after washing.
• the present invention discloses a cosmetic containing a specific amount of dextrin and a polysaccharide thickener and a specific polyacrylamide compound.
• it is a cosmetic containing a polyacrylamide compound composed of a cross polymer of these polymers, and (A) the amount of dextrin blended is 0.1 to 18% by mass with respect to the total amount of the cosmetic, and (B).
• the (C) polyacrylamide compound is a copolymer of 2-acrylamide-2-methylpropanesulfonic acid or a salt thereof / vinylpyrrolidone, or a copolymer of 2-acrylamide-2-methylpropanesulfonic acid or a salt thereof / dimethylacrylamide.
• AO is an oxyalkylene group having 3 to 4 carbon atoms
• EO is an oxyethylene group
• p and q are oxyalkylene groups having 3 to 4 carbon atoms and the average number of moles of oxyethylene groups, respectively.
• ⁇ q ⁇ 70
• the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass.
• the oxyalkylene group and the oxyethylene group may be added in a block shape or randomly.
• R 1 and R 2 are hydrogen atoms or hydrogen atoms having 1 to 4 carbon atoms which may be the same or different, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R 1 and R 2 is 0.15 or less. ).
• (11) The cosmetic according to any one of (1) to (10), further containing a moisturizer.
• (12) The cosmetic according to any one of (1) to (11), further containing a scrubbing agent.
• the use of the cosmetic of the present invention is advantageous in that both the smoothness of the skin after washing and the refreshing feeling after washing can be achieved at the same time.
• the present invention (A) Dextrin, A homopolymer or copolymer containing (B) a polysaccharide thickener and (C) one or more selected from 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid, and derivatives thereof as a constituent unit.
• it is a cosmetic containing a polyacrylamide compound composed of a cross polymer of these polymers, and (A) the amount of dextrin blended is 0.1 to 18% by mass with respect to the total amount of the cosmetic, and (B).
• the amount of the polysaccharide thickener is 0.01 to 0.9% by mass based on the total amount of the cosmetic.
• the dextrin contained in the cosmetic of the present invention is not particularly limited as long as it is an intermediate product produced when starch is hydrolyzed by acid, heat, or an enzyme, and there are various types depending on the method of hydrolysis.
• soluble starch, thin starch, amylodextrin, white dextrin, yellow dextrin, British gum, erythrodextrin, acrodextrin and the like can be mentioned, and any one or more can be selected and used.
• the dextrin contained in the cosmetic of the present invention preferably includes hydrolyzed cornstarch, hydrolyzed cassaba, hydrolyzed potato, or hydrolyzed cornstarch, and hydrolyzed cornstarch is particularly preferable.
• the DE (Dextrose Equivalent) of dextrin contained in the cosmetic of the present invention is preferably 1 to 35, more preferably 10 to 30.
• DE is generally an index indicating the degree of decomposition of starch, and is obtained by multiplying the ratio of reducing sugar to the total amount by 100.
• the blending amount of dextrin contained in the cosmetic of the present invention is not particularly limited as long as it is 0.1 to 18% by mass with respect to the total amount of the cosmetic amount, but is preferably with respect to the total amount of the cosmetic amount. It is 0.5 to 15% by mass, and more preferably 1 to 10% by mass with respect to the total amount of cosmetics.
• any of plant-derived, seaweed-derived, microbial-derived and other polysaccharide-based thickeners may be used.
• the polysaccharide thickener contained in the cosmetic of the present invention is not particularly limited, but xanthan gum, gellan gum, succinoglucan, sclerotium gum, arabic gum, alkaline genenes-producing polysaccharides, hydroxyethyl cellulose, guar gum, etc.
• examples thereof include carrageenan, hyaluronic acid, tuberose polysaccharide, white jellyfish polysaccharide, locust bean gum, oxidized cellulose and the like, and one or more of these polysaccharide-based thickeners may be used, and among these, preferably.
• Xanthan gum and / or succinoglucan more preferably xanthan gum or succinoglucan, and particularly preferably xanthan gum.
• the blending amount of the polysaccharide thickener contained in the cosmetic of the present invention is not particularly limited, but is preferably 0.01 to 0.9% by mass with respect to the total amount of the cosmetic. More preferably, it is 0.15 to 0.8% by mass with respect to the total amount of cosmetics, and even more preferably, it is 0.15 to 0.5% by mass with respect to the total amount of cosmetics.
• the polyacrylamide compound contained in the cosmetic of the present invention is not particularly limited, but is one or more selected from 2-acrylamide-2-methylpropanesulfonic acid, acrylic acid, and derivatives thereof. Is a homopolymer or copolymer containing, or a cross-polymer of these polymers.
• Specific examples of such polyacrylamide compounds include a copolymer of 2-acrylamide-2-methylpropanesulfonic acid or a salt thereof / vinylpyrrolidone, a copolymer of 2-acrylamide-2-methylpropanesulfonic acid or a salt thereof / dimethylacrylamide, and the like.
• the blending amount of the polyacrylamide compound contained in the cosmetic of the present invention is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably, with respect to the total amount of the cosmetic amount. It is 0.1 to 5% by mass with respect to the total amount of cosmetics, and more preferably 0.5 to 2% by mass with respect to the total amount of cosmetics.
• an alkylene oxide derivative may be further contained.
• the alkylene oxide derivative that may be contained in the cosmetic of the present invention is preferably a compound represented by the following formula (I).
• AO is an oxyalkylene group having 3 to 4 carbon atoms
• EO is an oxyethylene group
• p and q are oxyalkylene groups having 3 to 4 carbon atoms and the average number of moles of oxyethylene groups, respectively.
• ⁇ q ⁇ 70
• the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass.
• the oxyalkylene group and the oxyethylene group may be added in a block shape or randomly.
• R 1 and R 2 are hydrogen atoms or hydrogen atoms having 1 to 4 carbon atoms which may be the same or different, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R 1 and R 2 is 0.15 or less. ).
• AO is an oxyalkylene group having 3 to 4 carbon atoms, and examples thereof include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, a trimethylene group and a tetramethylene group.
• p is the average number of moles of oxyalkylene groups having 3 to 4 carbon atoms, and is 1 ⁇ p ⁇ 70, preferably 2 ⁇ p ⁇ 20.
• q is the average number of moles of oxyethylene groups added, with 1 ⁇ q ⁇ 70, preferably 2 ⁇ q ⁇ 20. Further, (p + q) is preferably 8 to 100.
• the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group having 3 to 4 carbon atoms is preferably 20 to 80% by mass.
• the order of addition of ethylene oxide and alkylene oxide having 3 to 4 carbon atoms is not particularly limited.
• the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms may be added in a block shape or in a random shape, but are preferably added in a random shape.
• the block shape includes not only a two-stage block but also a three-stage block.
• R 1 and R 2 are of the same type, or if a hydrocarbon group having 1 to 4 carbon atoms and a hydrogen atom are mixed, different types of hydrocarbon groups having 1 to 4 carbon atoms are mixed. May be.
• the abundance ratio of the hydrocarbon group and the hydrogen atom is the ratio of the number of hydrogen atoms (Y) to the number of hydrocarbon groups (X) Y / X is 0.15. It is less than or equal to, preferably 0.06 or less.
• alkylene oxide derivative examples include polyoxyethylene (10 mol) polyoxypropylene (10 mol) dimethyl ether, polyoxyethylene (9 mol) polyoxypropylene (2 mol) dimethyl ether, and polyoxyethylene (14 mol).
• the alkylene oxide derivative of the present invention can be produced by a known method. For example, it can be obtained by addition-polymerizing ethylene oxide and an alkylene oxide having 3 to 4 carbon atoms to a compound having a hydroxyl group, and then subjecting an alkyl halide to an ether reaction in the presence of an alkaline catalyst.
• the blending amount of the alkylene oxide derivative that may be contained in the cosmetic of the present invention is not particularly limited, but is preferably 0.01 to 70% by mass with respect to the total amount of the cosmetic. More preferably, it is 0.1 to 30% by mass with respect to the total amount of cosmetics, more preferably 1 to 10% by mass with respect to the total amount of cosmetics, and even more preferably the total amount of cosmetics. It is 1 to 7% by mass, and particularly preferably 4 to 6% by mass with respect to the total amount of the cosmetic.
• a surfactant may be further contained.
• the surfactant that may be contained in the cosmetic of the present invention is not particularly limited, but preferably includes a nonionic surfactant or an anionic surfactant.
• nonionic surfactant examples include a lipophilic nonionic surfactant and a hydrophilic nonionic surfactant, and examples thereof include sorbitan fatty acid esters (eg, sorbitan mono).
• sorbitan monoisostearate sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, penta-2-ethylhexyl acid diglycerol sorbitan, tetra-2-ethylhexyl acid di Glyceride sorbitan, etc.
• glycerin polyglycerin fatty acids eg, monocotton seed oil fatty acid glycerin, monoerkaate glycerin, sesquioleate glycerin, monostearate glycerin, ⁇ , ⁇ '-oleate pyroglutamate glycerin, monostearate glycerin malic acid, etc.
• Propylene glycol fatty acid esters eg, propylene glycol monostearate, etc.
• hardened castor oil derivative glycerin alkyl ether
• POE-sorbitan fatty acid esters eg, POE-sorbitan monooleate, POE-sorbitan monostearate, POE-Sorbitan monooleate, POE-Sorbitan tetraoleate, etc.
• POE sorbit fatty acid esters eg, POE-Sorbit monolaurate, POE-Sorbit monooleate, POE-Sorbit pentaoleate, POE-Sorbit monosteer Rates, etc.
• POE-glycerin fatty acid esters eg, POE-monooleate such as POE-glycerin monostearate, POE-glycerin monoisostearate, POE-glycerin triisostearate, etc.
• POE-fatty acid esters
• POP-decyltetradecyl ether POE / POP-monobutyl ether , POE / POP-hydrogenated lanolin, POE / POP-glycerin ether, etc.
• Tetra POE / tetra POP-ethylenediamine condensates eg, Tetronic, etc.
• POE-Himashi oil cured Himasi oil derivative eg, POE-Himashi) Oil, POE-hardened bean oil, POE-hardened bean oil monoisostearate, POE-hardened bean oil triisostearate, POE-hardened bean oil monopyroglutamic acid monoisostearic acid diester, POE-hardened bean oil maleic acid, etc.)
• POE-Mitsurou lanolin derivative eg, POE-Solbit honeyrow, etc.
• alkanolamide eg, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid
• N-cocoyl-N-methyl taurine sodium N-lauroyl-N-methyl taurine sodium, N-palm oil fatty acid-N-methyl taurine sodium, N-palm oil fatty acid-N-methyl taurine triethanolamine, N- Palm oil fatty acid-N-ethyltaurine triethanolamine, N-cocoyl taurine magnesium, N-cocoyl-N-methyl taurine magnesium, N-lauroyl-N-taurine magnesium, N-lauroyl-N-methyl taurine magnesium, N-coconut Examples thereof include oil fatty acid-N-methyl taurine magnesium, and among these, N-palm oil fatty acid-N-methyl taurine sodium is preferable. Specific commercial names of N-coconut oil fatty acid-N-methyltaurine sodium include "ST-SF Super" (manufactured by NOF CORPORATION).
• the blending amount of the surfactant that may be contained in the cosmetic of the present invention is not particularly limited, but is preferably 0.01 to 5% by mass with respect to the total amount of the cosmetic. More preferably, it is 0.1 to 3% by mass with respect to the total amount of cosmetics, and even more preferably, it is 0.2 to 1% by mass with respect to the total amount of cosmetics.
• a moisturizer may be further contained.
• moisturizing agent examples include dipropylene glycol, polyethylene glycol, propylene glycol, isoprene glycol, isopentyldiol, glycerin, diglycerin, decaglycerin, and 1,3-butylene glycol.
• the blending amount of the moisturizer that may be contained in the cosmetic of the present invention is not particularly limited, but is preferably 1 to 60% by mass, more preferably 1 to 60% by mass, based on the total amount of the cosmetic. , 5 to 50% by mass, more preferably 10 to 40% by mass, based on the total amount of cosmetics.
• a scrubbing agent may be further contained.
• the scrubbing agent that may be contained in the cosmetic of the present invention contains a granular substance, for example, a hydrocarbon-based polymer powder such as polyethylene, polypropylene, and polystyrene, a polyamide-based polymer powder such as nylon, polyvinyl chloride, and the like.
• a hydrocarbon-based polymer powder such as polyethylene, polypropylene, and polystyrene
• a polyamide-based polymer powder such as nylon, polyvinyl chloride, and the like.
• Vinyl-based polymer powders such as polyacrylonitrile, polyvinyl acetate, and polyfluorinated vinylidene, polyurethane-based polymer powders, general-purpose polymer materials such as copolymers thereof, and inorganic powders such as talc and titanium are available. These may be used alone or in combination of two or more.
• the average particle size of the scrubbing agent those having an average particle size of 20 ⁇ m or more can be applied when only the cleaning effect is expected. If further a sensory cleaning effect is expected, a material having an average particle size of 50 ⁇ m or more is used.
• the upper limit of the average particle size is usually 1 mm ⁇ , which does not cause a sense of discomfort.
• the average particle size is preferably about 50 to 500 ⁇ m, and more preferably 100 to 300 ⁇ m.
• the average particle size can be measured according to the laser diffraction / scattering method.
• the amount of the scrubbing agent that may be contained in the cosmetic of the present invention is preferably 0.01 to 6% by weight, more preferably 0.1 to 5% by weight, based on the total amount of the cosmetic. ..
• the cosmetics of the present invention can be blended with ordinary cosmetics and ingredients used for cleaning cosmetics and pharmaceuticals, and are manufactured according to a conventional method.
• examples of such components include the following, and as long as the effects of the present invention are exhibited, one or more of the following components can be further blended and produced.
• components usually used in cosmetics for example, powder components, oily components, ultraviolet absorbers, metal ion preservatives, monosaccharides, oligosaccharides, amino acids, organic amines, etc.
• High polymer emulsions, alcohols, pH adjusters, dispersants, antioxidants, fragrances, preservatives, stabilizers and the like may be appropriately added as necessary.
• the cosmetic of the present invention can further contain water in addition to the above-mentioned components.
• water water used for cosmetics, quasi-drugs and the like can be used, and for example, purified water, ion-exchanged water, tap water and the like can be used.
• the blending amount of water in the cosmetic of the present invention can be preferably 5% by mass or more with respect to the total amount of the cosmetic, and more preferably 10% by mass or more with respect to the total amount of the cosmetic. Can be.
• the blending amount of water in the cosmetic of the present invention can be preferably 80% by mass or less with respect to the total amount of the cosmetic, and more preferably 70% by mass or less with respect to the total amount of the cosmetic. Can be.
• the cosmetic of the present invention it is a cleaning agent. Further, according to a more preferable embodiment of the cosmetic of the present invention, it is a gel-like cleaning agent.
• the gel-like cleaning agent means a liquid to semi-solid cleaning agent having fluidity, and the viscosity (B-type viscometer, 30 ° C.) is preferably 1,000 mPa ⁇ s or more. Further, the gel-like cleaning agent is preferably transparent or translucent depending on the intended use, and more preferably transparent.
• the cosmetic of the present invention is preferably a skin cleansing agent, and its dosage form is preferably in the form of lotion, gel, or cream, but more preferably in the form of gel.
• the dosage form of the cosmetic of the present invention is arbitrary, and any dosage form such as solution system, solubilization system, emulsification system, powder dispersion system, water-oil two-layer system, water-oil-powder three-layer system, etc. There may be.
• the present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the blending amount is shown in% by mass.
• Test Example 1 Usability evaluation test of cosmetics Cosmetics (Examples 1 to 11 and Comparative Examples 1 to 7) were prepared based on each component shown in Tables 1 to 3 below and the blending amount thereof. These cosmetics were evaluated for (1) weight of extension, (2) good wash-off, (3) smooth feeling after washing, and (4) manufacturability. The evaluation method for each evaluation was as follows. The evaluation results are shown in Tables 1 to 3 below.
• Weight of extension A usability test was conducted by 10 specialized panelists. The weight of the spread when each cosmetic was applied to the skin was evaluated based on the following criteria. ⁇ Evaluation criteria> A: More than 6 panelists answered that the growth was heavy. B: Three to five panelists answered that the growth was heavy. C: Two or less panelists answered that the growth was heavy.
• a cosmetic containing 20% by mass of dextrin in the cosmetic or a cosmetic containing 1% by mass of xanthan gum in the cosmetic was evaluated as "B" in terms of good washability and manufacturability, and the smoothness of the skin after washing. Incompatible with the refreshing feeling after washing, and inferior in the manufacturability of cosmetics.
• Cosmetics that do not contain polyacrylamide compounds, which are composed of polyacrylamide compounds, are evaluated as "C" in the evaluation criteria of the weight of extension and / or the smoothness after washing, and the smoothness of the skin after washing and the refreshing feeling after washing are obtained. It turned out to be incompatible.

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• 2020
  • 2020-05-25 JP JP2020090681A patent/JP7569630B2/ja active Active
• 2021
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