JP2002370927A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cosmetic capable of suitably absorbing serum, excellent in effect of improving and preventing greasy feeling of sebum and smeared makeup, having good usability and capable of effectively permeating substances improving skin qualities such as moisture, bracing and tenseness into skin. SOLUTION: This cosmetic comprises (A) oil-absorbing powder in which absorbing amount of squalane is >=1 ml/g and (B) an active ingredient in which affinity for the component A is lower than affinity for sebum. The cosmetic can efficiently impart these substances to skin by releasing these substances improving skin qualities in turns by absorbing sebum and has lower irritation and lasting effect, compared with cosmetics containing a conventional substance improving skin quality in high concentration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic which is used by being applied or affixed to the skin such as the face for the purpose of absorbing sebum.

[0002]

2. Description of the Related Art A thin sebum film is formed on the surface of the epidermis of the skin, which prevents the invasion of foreign substances from the outside world, protects the skin from irritation of various substances, and suppresses the evaporation of water, thereby preventing the skin from evaporating. It has the effect of lubricating. On the other hand, if the sebum is excessive, it causes stickiness, shininess, makeup loss, etc., and also causes seborrheic diseases such as acne. Therefore, the secretion of sebum is physiologically suppressed using a medicinal agent,
Methods for physically adsorbing excessively secreted sebum to an oil-absorbing substance and the like have been studied. However, no effective medicinal agent compatible with the former method has been found yet, and has not been put to practical use. As a method for removing the excess sebum on the surface of the epidermis of the latter skin, a method using a fat removing paper is good as an emergency measure, but the sebum absorbing ability is not sufficient. Also, for example, a pack containing lipophilic titanium dioxide or lipophilic silicon dioxide (JP-A-57-112314),
Cosmetics containing 飯 15 μm barley powder (Japanese Unexamined Patent Publication No. 9-263)
No. 528), and a cosmetic tool (Japanese Patent Application Laid-Open No. 2-36114) in which a porous powder (microcapsule) containing a functional treating agent is adhered to the surface or inside of a sheet-like material.
Usability and sebum absorption ability are not sufficient. On the other hand, a sheet-shaped pack cosmetic using an oil-absorbing powder that absorbs a specific amount of squalane (JP-A-2001-72566) has been proposed. It has excellent sebum absorption ability and is highly effective in improving and preventing makeup loss, but it is necessary to separately use cosmetics such as lotions and creams to supplement the effects of moisture, tightening, and beaming. Was.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to be able to suitably absorb sebum, to have an excellent effect of improving and preventing the oiliness of sebum and to prevent makeup collapse, and to provide moisturizing, tightening, and beaming. An object of the present invention is to provide a cosmetic that can effectively impart a substance that improves skin quality to the skin.

[0004]

Means for Solving the Problems The present inventor has proposed a combination of an oil-absorbing powder having a specific amount of squalane-absorbing ability and the above-mentioned active ingredient for improving skin quality, which has lower affinity for the oil-absorbing powder than sebum. , Which can absorb sebum appropriately, and is excellent in improving and preventing the greasyness of sebum and makeup collapse,
In addition, it has been found that a cosmetic that can effectively penetrate the skin with substances that improve skin quality, such as moisture, tightness, and a beam, has been found.

The present invention relates to the following components (A) and (B): (A) an oil-absorbing powder having an absorption amount of squalane of 1 mL / g or more; It is intended to provide a cosmetic containing a low active ingredient.

In the cosmetic of the present invention, the oil-absorbing powder of the component (A) has a higher affinity for the oil sebum than the component (B) and a solvent such as water. The active ingredient and the like having a lower affinity for the oil-absorbing powder of the component (B) than the sebum are released, and the component (B) can be efficiently given to the skin.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The oil-absorbing powder of the component (A) used in the present invention has a squalane absorption of 1 mL / g or more, preferably 1.5 mL / g or more, in terms of sufficiently absorbing sebum. is there. Here, the absorption amount of squalane is based on JIS K51
It is a value measured in accordance with the method for measuring the oil absorption of a pigment specified in No. 01 (1978). That is, 1 g of powder is taken on a glass plate and kneaded with a spatula while dropping squalane little by little, and the end point is when the powder becomes a paste as a whole, and the amount of squalane at that time (mL) Is the oil absorption (mL / g).

Examples of such an oil-absorbing powder include vinyl polymers obtained by polymerizing one or more monomers such as vinyl acetate, N-vinylpyrrolidone, methacrylate, acrylate, styrene and divinylbenzene. , Nylon, silicic anhydride and the like. These are preferably porous powders, which can be made porous by a usual method to adjust the amount of squalane absorbed.
Among these, hydrophobic oil-absorbing powders such as vinyl-based polymers and nylon are preferable because the oil-absorbing ability is not reduced by water or sweat.

The vinyl polymer is preferably a porous hydrophobic polymer obtained by polymerizing one or more vinyl monomers having a solubility parameter of 7 to 10. Examples of the vinyl monomer having a solubility parameter of 7 to 10 include (meth) acrylic acid and C8 to C24.
With higher alcohols, styrene or C1
Styrene derivatives having a hydrocarbon substituent of 12 to 12, vinyl esters of saturated carboxylic acids having 8 to 20 carbon atoms, (meth) acrylic acid, diolefins having 4 to 6 carbon atoms, and the like. When a monomer having a solubility parameter of 7 to 10 is used, the compatibility with sebum is excellent, and a higher sebum absorbency can be obtained. The oil-absorbing powder preferably swells with sebum but does not dissolve from the viewpoint of touch, and is therefore preferably crosslinked. Crosslinking can be performed by a method of adding a polyfunctional monomer during polymerization, post-crosslinking, self-crosslinking, or the like. Examples of the polyfunctional monomer include divinylbenzene, divinylpyridine, ethylene glycol di (meth) acrylate, and triethylene glycol di (meth) acrylate.

The polymerization and porosity formation of the vinyl monomer can be carried out, for example, according to the method described in JP-A-63-316715. The monomer is dissolved in a non-polymerizable organic solvent, and this solution is dissolved in water. It is preferable to carry out the polymerization by suspending, dispersing or emulsifying the mixture in an emulsion and removing the organic solvent after the polymerization.

Commercial products of such oil-absorbing powders include porous nylon powders such as Orgazole 2002 (manufactured by Elf Autochem); dimethyl silicone crosslinked elastomers such as Trefill E-506C (manufactured by Dow Corning Toray); Polymethyl methacrylate such as Microsphere M, Microsphere M-100, Microsphere M-300, Microsphere M-400, Microsphere R-109 (manufactured by Matsumoto Yushi); Polytrap (manufactured by Dow Corning) and the like. And methacrylate copolymers.

The oil-absorbing powder has an average particle size of 0.005 to 0.005.
Those having a thickness of 30 μm, particularly 0.005 to 20 μm, are preferred.
Further, it is preferable that 90% by weight or more of the oil-absorbing powder has a particle diameter of 0.005 to 30 μm.

Two or more oil-absorbing powders can be used, and 10 to 60% by weight, preferably 30 to 6% by weight in the total composition.
0% by weight is contained. Within this range, the oil-absorbing powder becomes a continuous chain in the cosmetic, so that sebum can be effectively and sufficiently absorbed, and uniform kneading at the time of production becomes easy.
Further, it is preferable that the hydrophobic oil-absorbing powder as described above is contained at 5% by weight or more, particularly 10 to 40% by weight in the whole composition.

The component (B) used in the present invention only needs to have a lower affinity for the oil-absorbing powder than the sebum so that the oil-absorbing powder is released when the oil-absorbing powder is absorbed. Preferably, the solubility of the substance in water is higher than the solubility of the substance in squalane.

The component (B) includes humectants, pharmacologically active substances, antibacterial agents, anti-inflammatory agents, etc., and extracts of animals and plants, amino acids or salts thereof, peptides, proteins, organic acids, vitamins and the like. Derivatives, urea, inorganic salts and the like are exemplified.

Specific examples of the substance (B) include the following substances. Extracts of animals and plants: Examples of animal extracts include placenta extracts, and water-soluble placenta extracts that are generally commercially available and used as cosmetic raw materials can be used. For example, those obtained by extracting a water-soluble component through a process such as washing, blood removal, crushing, and freezing of a placenta of a mammal such as a cow, a pig or a human, and further removing impurities can be mentioned. As the plant extract, for example, Ashitaba, adzuki bean, Asenyaku, avocado, amacha, amachatull, altea, alteca, arnica, almond, aloe, apricot, nettle, iris, fennel, turmeric, age, ogre, oubak, uren, barley, Okra, Hypericum, Odorikosou, Ononis, Dutch mustard, oyster, cuckoo, kanokosou, birch, cattail, chamomile, chamomile, oats, liquorice, raspberry, kiwi, kina, kina, cucumber, kyonin, kukuinuts, gardenia, kumazai , Gunjou, Gentian, Gennoshoko, Lubbish, Ginseng, Burdock, Sesame, Wheat, Comfrey, Rice, Sasanqua, Saffron, Hawthorn, Sansho, Shiitake, Jio, Shikon, Shiso, Sina Ki, Spiraea, Peonies, Ginger, Ginger, Shobu, Birch, Watermelon, Horsetail, Horsetail, Stevia, Siberia sylvestris, Atlantic Crataegus, Elderberryberry, Acacia sylvestris, Achillea millefolium, Acacia serrata, White mulberry, Mulberry Soybean, Daiso, Thyme, Cha, Clove, Chimpi, Evening primrose, Camellia, Camellia, Teuchigurumi, Touki, Tokinsenka, Tonin, Spruce, Maize, Dokudami, Tomato, Carrot, Garlic, Nobara, Bakuga, Mugiwinter, Parsley, Naked , Adlay, peppermint, papaya, hamamelis, rose, cypress, cypress, sunflower, loquat, coltsfoot, grape, plastic center, hazelnut,
Loofah, safflower, bodaige, button, hop, macadamia nut, pine, matsukasa, marronnier, melissa, melilot, peach, sprouts, cornflower, palm, eucalyptus, yukinoshita, yuzu, lily, yokuninin, mugwort, rye, peanut, lavender, apple, Litchi, lettuce, lemon, vetch, rosemary, funnel, roman chamomile, valerium, inchinko, kinmizukiki, catalpa, asunaro, holtsou, ikiokoshi, pheasant,
Senki, chickweed, floating grass, mugwort, ginkgo,
Extracts obtained from Kikyo, Chrysanthemum, Kumazasa, Mukuroji, Forsythia etc. are mentioned. Amino acids or salts thereof: for example, ornithine, tryptophan, lysine, arginine, histidine, canavanine, glutamic acid, aspartic acid, serine, alanine, glycine, leucine, isoleucine, proline, threonine, valine, methionine, cystine, cysteine, hydroxyproline, phenylalanine, Tyrosine, hydroxylysine, trimethylglycine, sodium aspartate, potassium aspartate, magnesium aspartate, calcium aspartate, sodium glutamate, potassium glutamate, magnesium glutamate, calcium glutamate, glutamate hydrochloride, cysteine hydrochloride, histidine hydrochloride, histidine acetate Salt, histidine phosphate, lysine hydrochloride, lysine acetate, ornithine hydrochloride , Ornithine acetate, tryptophan hydrochloride, arginine - glutamate, ornithine - glutamate, lysine - glutamate, lysine -
Aspartate, ornithine-aspartate, ε
-Aminocaproic acid and the like. Peptides: For example, tripeptide (Arg-Gly-Asp), tetrapeptide (Arg-Gly-Asp-Ser) (JP-A-2-178207)
No.), a peptide represented by the formula (Arg-Pro-Phe-Phe) _n (wherein n is an integer of 1 to 8) (JP-A-62-99315),
Albumin and the like. Organic acids: for example, citric acid, lactic acid, succinic acid, tartaric acid, kojic acid and the like. Vitamins and their derivatives: for example, vitamins B ₁ , B ₂ ,
B ₆ , B ₁₂ , C, nicotinic acid, folic acid, pantothenic acid, paraaminobenzoic acid, biotin and the like. Inorganic salts: For example, magnesium sulfate, potassium sulfate, sodium sulfate, magnesium chloride, sodium chloride and the like.

Among these components (B), those which are water-soluble are preferred. Here, the water-soluble component may be any component having the following solubility in water and oil. That is, it has a solubility of 1% by weight or more in water, which is a sufficient amount to exhibit the effect of the active ingredient, while having a solubility of 1% by weight or less in squalane as a typical oil. The components are preferred.

These components (B) are contained in the cosmetic in an amount of 0.001 to 20% by weight, particularly 0.01 to 10% by weight, from the viewpoint of securing an effective amount of the active ingredient in the cosmetic. It is preferred that

The cosmetic of the present invention is produced by mixing the components (A) and (B) and appropriately used components. The component (B) may be formed between particles of the component (A) or a porous structure. It is contained in cosmetics in a state of being uniformly dispersed and held inside.

It is preferable that the cosmetic of the present invention further contains a hydrogel comprising a water-soluble polymer and a crosslinking agent as the component (C) to form a sheet-like cosmetic. Examples of the water-soluble polymer include polyacrylic acid, polymethacrylic acid,
Alginate, starch, agar, gelatin, pectin, casein, polyvinyl alcohol, polyvinyl pyrrolidone,
Examples include polyethylene oxide. These water-soluble polymers may be used in combination of two or more, and preferably contain 1 to 30% by weight, particularly 2 to 15% by weight in the whole composition.

As the crosslinking agent, a water-soluble salt such as calcium chloride, aluminum chloride, potassium alum, aluminum sulfate or the like, which causes a crosslinking reaction with the above water-soluble polymer, calcium hydroxide, aluminum hydroxide, calcium carbonate, calcium phosphate, Examples thereof include polyvalent metal salts such as hardly water-soluble or water-soluble salts such as aluminum stearate and calcium citrate. These crosslinking agents are used in an amount of 0.01 to 5 equivalents, particularly 0.1 to 5 equivalents to the crosslinking point of the water-soluble polymer.
It is preferable to mix 1 to 2 equivalents.

This sheet-shaped cosmetic can be produced, for example, by impregnating or coating a composition obtained by mixing the above-mentioned components on a base fabric and forming it into a sheet. Etc. can be applied. Alternatively, the raw material obtained by applying the composition on a facing film and covering the base fabric can be cut into predetermined dimensions.

Examples of the base fabric include knitted fabrics such as flannel and sufmos, woven fabrics; nonwoven fabrics such as felt and spunlace; paper;
Plastic sheets and the like can be mentioned. The thickness of the base fabric is
0.1 to 1.0 mm, particularly preferably 0.1 to 0.5 mm,
The coating thickness of the composition is from 0.1 to 1.0 mm, especially from 0.1 to 1.0 mm.
0.5 mm is preferred. In addition, the overall thickness is 0.1 to
2.0 mm, especially 0.1 to 1.0 mm, is preferred. The shape and size of the sheet are not particularly limited, and may be, for example, either a sheet covering the entire face or a sheet partially adhered.

When the cosmetic of the present invention is used as a peel-off type pack cosmetic, the component (D) film-forming water-soluble polymer is used. Examples of the film-forming water-soluble polymer include synthetic polymers such as polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate, poly (meth) acrylate, polystyrene, polyalkylene oxide, and silicone, and natural polymers such as cellulose, starch, and protein. Polymers can be used.

Two or more kinds of the film-forming water-soluble polymers can be used, and the total content of the water-soluble polymers is preferably 0.01 to 70% by weight, more preferably 5 to 40% by weight. Peel-off type pack cosmetics include, for example, components (A), (B),
It is manufactured by stirring and mixing (D) and other components used appropriately according to a conventional method.

The cosmetic of the present invention can be applied or affixed to the skin for the purpose of absorbing sebum, for example, in the form of a paste, cream, aerosol, lotion, emulsion, essence, pack, etc. It is preferable to use a sheet-shaped pack cosmetic from the viewpoint of the effect, particularly the effect.

In the cosmetic of the present invention, in addition to the above-mentioned components, for example, solid / semi-solid oil components, fluid oil components, hydrocarbons, higher alcohols, polyhydric alcohols, higher fatty acids, esters, silicones, lower alcohols, polysaccharides , Synthetic resin emulsion, surfactant, thickener, film forming agent, pH adjuster,
An antioxidant, a coloring agent, a fragrance, a preservative, water and the like can be appropriately blended.

The cosmetic of the present invention is used after being applied or affixed to the skin, for example, the face, allowed to stand for about 15 minutes to 10 hours, and then peeled off or washed away. It is preferable to use it before application at bedtime and peel off after getting up.

[0029]

EXAMPLES Reference Example 1 The oil-absorbing powder shown in Table 1 was subjected to the above-mentioned JIS K510.
The absorption amount of squalane was measured by a method according to Method 1. The average particle size of the powder was determined using a laser diffraction / scattering type particle size distribution analyzer manufactured by Horiba, Ltd.

[0030]

[Table 1]

REFERENCE EXAMPLE 2 Table 2 shows the results of visual observation of the dissolved state when 1 part by weight of the component (B) (Table 2) was mixed with 100 parts by weight of water or squalane at 25 ° C. Judgment criteria: 完全 Completely dissolved. × Separation or sedimentation without dissolution.

[0032]

[Table 2]

Example 1 Sheet Pack Cosmetic (Component) (% by weight) (1) Porous vinyl polymer 25.25 (Synthesis Example 1 of JP-A-63-316715) (2) Glycerin 25.8 ( 3) Sodium polyacrylate 5.5 (4) Polyacrylic acid 0.5 (5) Dry aluminum hydroxide gel 0.4 (6) Seaweed extract 1.1 (7) Hamamelis extract 0.01 (8) Altea Extract 1.0 (9) Asnalo extract 0.5 (10) Dipotassium glycyrrhizinate 0.2 (11) Methylparaben 0.1 (12) Odorless menthol 0.05 (13) Ethanol 0.275 (14) Purified water balance (Preparation method) Using a kneader, add component (2) to component (3)-
(5) is uniformly dispersed, and the components (6) to (11) are added thereto.
And (14) were added and kneaded uniformly, and then component (1) was added.
2) and (13) were added to make the mixture uniform, and then the component (1) was added and kneaded uniformly to obtain a cosmetic. The cosmetic was uniformly applied on a polyester film (thickness: 0.5 mm), covered with a polyester nonwoven fabric, and formed into a sheet.

Example 2 Pack cosmetic (peel-off type) (Component) (% by weight) Porous vinyl polymer 25.0 (Synthesis example 1 of JP-A-63-316715) Polyvinyl alcohol 12.0 Polyoxyethylene cured Castor oil 1.0 (addition of 40 moles of ethylene oxide) 1-isostearoyl-3-myristoylglycerol 1.0 glycerin 5.0 seaweed extract 1.1 methylparaben 0.1 ethanol 7.0 purified water balance

Example 3 Pack Cosmetic (Rinse Type) (Ingredient) (% by weight) Porous vinyl polymer 25.0 (Synthesis Example 1 of JP-A-63-316715) Acidic heteropolysaccharide 0.1 Nicotinic acid -Dl-α-tocopherol 1.0 polyoxyethylene hydrogenated castor oil 1.0 (addition of 40 moles of ethylene oxide) 1-isostearoyl-3-myristoylglycerol 1.0 carboxyvinyl polymer 0.5 glycerin 4.0 L-arginine 0.5 Methyl paraben 0.10 Purified water Balance

Comparative Examples 1 to 4 Comparative Example 1 A sheet-shaped pack cosmetic was produced in the same manner as in Example 1 except that the seaweed extract, Hamamelis extract, Altea extract, asnalo extract and dipotassium glycyrrhizinate were omitted. .

Comparative Example 2 A sheet-shaped pack cosmetic was produced in the same manner as in Example 1 except that the amount of the porous vinyl polymer was changed to 5.0% by weight.

Comparative Example 3 A peel-off type pack cosmetic was produced in the same manner as in Example 2, except that the seaweed extract was omitted.

Comparative Example 4 A wash-off type pack cosmetic was prepared in the same manner as in Example 3 except that L-arginine was added and 0.125% by weight of potassium hydroxide was added.

When the pack cosmetics of Examples 1 to 3 and Comparative Examples 1 to 4 were used, the effect of improving greasyness, the effect of preventing makeup collapse, and the feeling of moisture were evaluated. Table 3 shows the results.

(Evaluation method) (1) Effect of improving greasyness and effect of preventing makeup collapse: Example 1, Comparative Example 1, and Comparative Example 2 by 10 female panelists.
Was applied to the face and peeled off after 6 hours. The peel-off type pack cosmetics of Example 2 and Comparative Example 3 were applied to the face, dried for 30 minutes, and then peeled off. The face-off pack cosmetics of Example 3 and Comparative Example 4 were applied, left for 30 minutes, and then washed. These pack cosmetics were subjected to a sensory evaluation of an effect of improving greasy after use and an effect of preventing makeup collapse, and were judged according to the following criteria. ；: 7 or more evaluated “effective”. Δ: 4 to 6 persons evaluated “effective”. X: 3 or less evaluated as "effective". (2) Moist feeling Similar to (1), the evaluation of the feeling of effectiveness by looking at the packed cosmetic after use was evaluated by 10 female panelists according to the following criteria. ；: 7 or more evaluated “effective”. Δ: 4 to 6 persons evaluated “effective”. X: 3 or less evaluated as "effective".

[0042]

[Table 3]

Each of the cosmetics of the present invention was excellent in the effect of improving greasyness, the effect of preventing makeup collapse, and the feeling of moisture.

[0044]

Industrial Applicability The cosmetic of the present invention is capable of suitably absorbing sebum, has an excellent effect of improving and preventing sebum's greasyness and makeup collapse, and has skin properties such as moisturizing, tightening and gluing. Can effectively penetrate the skin. By releasing the substance that improves the skin quality instead of absorbing fat, the substance can be efficiently given to the skin, and it is less irritating than the conventional cosmetics containing the substance that improves the skin quality at a high concentration. The effect lasts.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuzo Kawada 2-1-3 Bunka, Sumida-ku, Tokyo Inside Kao Corporation Research Laboratory (72) Inventor Tomohiko Sano 2-1-3 Bunka, Sumida-ku, Tokyo Kao F-term in References (4) C083 AA112 AB222 AC102 AC122 AC422 AC432 AC482 AC582 AD022 AD072 AD092 AD112 AD212 AD532 AD662 BB21 BB26 BB36 BB51 CC07 EE11 EE50

Claims (4)

[Claims] 1. The following components (A) and (B): (A) an oil-absorbing powder having an absorption amount of squalane of 1 mL / g or more, and (B) an affinity lower than that of sebum for component (A). Cosmetics containing ingredients. 2. Component (A) has an average particle size of 0.005 to 3
The cosmetic according to claim 1, which is a porous powder of 0 µm. 3. The cosmetic according to claim 1, wherein the cosmetic absorbs sebum when applied to the skin and releases the component (B) instead. 4. The cosmetic according to any one of claims 1 to 3, which is a sheet-shaped pack cosmetic further comprising a hydrogel comprising component (C) a water-soluble polymer and a crosslinking agent.