Cosmetic, kit and liquid composition

Abstract

An object of the present application is to provide a cosmetic having excellent adhesiveness to skin. Means for solving the problem are as follows. One embodiment of the cosmetic according to the present application comprises (A) a sheet containing an associative tackifier and (B) a liquid composition, and the (A) sheet containing an associative tackifier is brought into contact with the (B) liquid composition before use.

Description

Technical Field

[0001] This invention relates to cosmetics, kits, and liquid compositions. Background Technology

[0002] Previously, two-component sheet masks and similar cosmetics were widely used, where a sheet material such as non-woven fabric was brought into contact with a liquid cosmetic composition and then applied to the face before use. This cosmetic, by covering the face with a sheet material soaked in a liquid cosmetic composition for a certain period of time, achieves a high level of cosmetic effect, such as tightening and skin care.

[0003] To date, dry-type masks are easy to use, have excellent adhesion to the skin, remain soft when dry, adhere well to the skin, do not lift off the skin, and easily provide the effects of moisturizing and hydrating. As a technology to provide such sheet-like cosmetic masks, a cosmetic mask has been proposed, consisting of a dry sheet-like nonwoven fabric mask with a specific water-soluble polymer loaded on a nonwoven fabric, and a lotion containing specific ingredients. When applying the mask, the nonwoven fabric mask is moistened and softened with the lotion (see Patent Document 1).

[0004] [Existing Technical Documents]

[0005] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2016-155764 Summary of the Invention

[0007] [The problem the invention aims to solve]

[0008] However, the existing technology does not provide sufficient skin adhesion and there is still room for improvement.

[0009] In view of the above, one objective of the present invention is to provide a cosmetic with excellent skin adhesion.

[0010] [Methods for solving the problem]

[0011] To address the aforementioned issues, one aspect of the cosmetic product of the present invention comprises (A) a sheet containing an associative tackifier and (B) a liquid composition, wherein the (A) sheet containing the associative tackifier is brought into contact with the (B) liquid composition prior to use.

[0012] [The effects of the invention]

[0013] According to one aspect of the present invention, a cosmetic product with excellent skin adhesion can be provided. Detailed Implementation

[0014] Hereinafter, embodiments of the present invention will be described in detail. Furthermore, the embodiments are not limited to those described below, and appropriate modifications may be made without departing from the spirit of the invention. Additionally, in this specification, the term "~" indicating a numerical range means that, unless otherwise specified, the values ​​described before and after it are included as the lower and upper limits.

[0015] (cosmetic)

[0016] One embodiment of the cosmetic comprises (A) a sheet containing an associative tackifier and (B) a liquid composition, and may also contain other components as needed. In one embodiment of the cosmetic, the (A) sheet containing the associative tackifier is brought into contact with the (B) liquid composition before use.

[0017] For example, in sheet masks used for stretching, the skin, which is pulled up by a sheet of non-woven fabric or the like, needs to maintain its stretched state. It is also desirable for the sheet mask to be soaked in a moist state with a cosmetic such as a serum. Therefore, a cosmetic is needed that can be softly applied to the skin and maintain its shape with strong adhesion.

[0018] In traditional sheet masks with a stretching mechanism, such as those that hang on the ears, physical fixation improves the fit. However, this can put strain on the ears. Furthermore, when cosmetics like serums are soaked into the sheet, it creates resistance behind the ears and when the hair comes into contact with the sheet.

[0019] In addition, there is a method of using highly elongated nonwoven fabrics to lift the skin, but this has the problems of weak adhesion and poor fixation.

[0020] On the other hand, it was also considered that the liquid used to impregnate the sheet mask would have high adhesion, thus improving its fit to the skin. In this case, it was considered to incorporate adhesive ingredients, but to achieve the desired adhesiveness, similar to gel-like substances such as patches or tapes, a certain degree of moisture reduction was necessary.

[0021] Another approach was to incorporate a large amount of tackifier. However, this approach had the following problems: the viscosity of the liquid used to impregnate the sheet increased, resulting in poor impregnation efficiency and difficulty in uniformly impregnating the sheet.

[0022] Therefore, through careful research, the inventors discovered that by comprising (A) a sheet containing an associative tackifier and (B) a liquid composition, and by contacting the sheet containing the associative tackifier (A) with the liquid composition (B) before use, a cosmetic product with excellent skin adhesion can be achieved. More specifically, it was found that the viscosity of the liquid composition (B) is low before contacting the sheet containing the associative tackifier (A) and increases after contact. This design allows for excellent impregnation of the sheet and excellent skin adhesion in the cosmetic product.

[0023] <(A) Sheets containing associative tackifiers>

[0024] (A) Sheets containing associative tackifiers contain at least associative tackifiers and, if necessary, other ingredients.

[0025] <<Sheet>>

[0026] There are no particular limitations on the sheet material used for (A) sheets containing associative tackifiers; it can be appropriately selected according to the purpose. Low elongation is preferred, based on the point that it can further improve the adhesion of the cosmetic to the skin. For example, when the sheet is pulled up along the facial contours and simultaneously applied, a sheet with low elongation is used, thereby preventing the stretched sheet from elongating during use and inhibiting its recovery. Furthermore, the adhesion is very strong, thus it can be fixed in a stretched state. Therefore, even if the sheet structure is not a structure that hangs on the ear, excellent adhesion can be obtained.

[0027] The elongation of the sheet used for (A) the sheet containing the associative tackifier is not particularly limited and can be appropriately selected according to the purpose. The elongation (length in the elongation direction after the tensile test / length in the elongation direction before the tensile test × 100) when the tensile test is performed at a speed of 10 mm / min for 3 minutes is preferably less than 120%, more preferably less than 110%, and particularly preferably less than 105%.

[0028] In this invention, the elongation direction (stretch direction) in a tensile test refers to the direction in which the sheet material elongates the most. For example, when using nonwoven fabric as a sheet material, the direction parallel to the length direction of the fibers is the elongation direction.

[0029] In addition, the tensile test is performed on the sheet itself (the sheet before the associative tackifier). Furthermore, the tensile test uses the sheet in a dry state (moisture content of less than 10% by mass).

[0030] There are no particular restrictions on the apparatus used for tensile testing; any well-known apparatus can be selected, such as the FUDOH RTC rheometer (Rheotech).

[0031] There are no particular limitations on the sheet material used for (A) sheets containing associative tackifiers, and it can be appropriately selected according to the purpose. Examples include non-woven fabrics, woven fabrics, paper, and aqueous gel sheets. Among these, non-woven fabrics are preferred because they further improve the adhesion of cosmetics to the skin.

[0032] There are no particular restrictions on the fibers that make up nonwoven fabrics; they can be selected appropriately according to the purpose. Examples include synthetic fibers such as polyethylene terephthalate, polyethylene, and polypropylene; as well as cellulose-based fibers such as cotton, pulp, rayon, and cuprammonium cellulose. They can be used alone or in combination of two or more.

[0033] There are no particular restrictions on the shape, structure, size, or thickness of the sheet used for (A) sheets containing associative tackifiers, and they can be appropriately selected according to the purpose.

[0034] For example, it could be a shape that conforms to the shape of the face, a shape that conforms to the shape of a part of the face such as the cheeks or around the eyes, or a shape that corresponds to the shape of the part to which it is attached. In addition, cutting off the parts corresponding to the eyes, nose, and mouth, or making incisions in the parts corresponding to the eyes, nose, and mouth, can improve the tightness of the fit to the skin.

[0035] Furthermore, the processing of the sheet into the desired shape and size can be done either after the sheet has become a sheet containing an associative tackifier or before the sheet has been processed to contain the associative tackifier.

[0036] The sheet used for (A) the sheet containing the associative tackifier can be a single-layer structure or a multi-layered structure. In the case of a multi-layered structure, the sheets of each layer can be made of the same material or different materials.

[0037] There are no particular restrictions on the basis weight of the sheet used for (A) sheets containing associative tackifiers, and it can be appropriately selected according to the purpose.

[0038] Sheets used for (A) sheets containing associative tackifiers may be commercially available or manufactured by known methods.

[0039] <<Associative Tackifiers>>

[0040] "Associative tackifier" refers to a tackifier that is a copolymer having a hydrophilic portion composed of water-soluble monomers and a hydrophobic portion composed of hydrophobic monomers, which associates in an aqueous solvent through hydrophobic interactions, thereby exhibiting the behavior of a giant molecule resembling a physical cross-link, and thus having the effect of thickening the system (see, for example, paragraph 0014 of Japanese Patent Application Publication No. 2000-239120).

[0041] As an associative tackifier, there are no particular limitations, and it can be appropriately selected according to the purpose. Hydrophobic modified polyether urethane is preferred, and compounds represented by the following general formula (1) are more preferred.

[0042]

Chemistry 1

[0043]

[0044] Here, in the general formula (1), R represents the hydrophobic part, X represents the hydrophilic part formed by the addition polymerization of an alkylene oxide containing ethylene oxide in an organic compound having at least two active hydrogen groups, B represents the linking part containing an ether group or an ester group, and n represents an integer from 1 to 5.

[0045] As an associative tackifier, a copolymer with a mass ratio of hydrophilic portion to hydrophobic portion [hydrophilic portion: hydrophobic portion] of 5:1 to 1,000:1 is preferred. A copolymer in which the hydrophilic portion X is polyethylene oxide is more preferred. A copolymer in which the hydrophobic portion R is a monovalent hydrocarbon group with 6 or more carbon atoms or a monovalent fluorocarbon group with 4 or more carbon atoms, and the hydrophilic portion of the copolymer is polyethylene oxide with 30 to 6,000 (integer) ethylene oxide units, is particularly preferred.

[0046] Among them, the hydrophobic modified polyether urethane represented by the general formula (1) is particularly preferred to be the hydrophobic modified polyether urethane with the INCI name "(PEG-240 / decyltetradecanoyl alcohol polyether-20 / HDI) copolymer (PEG-240 / HDI copolymer dicdecyltetradecanoyl alcohol polyether-20 ether)".

[0047] In addition, "HDI" is an abbreviation for hexamethylene diisocyanate.

[0048] The hydrophobically modified polyether urethane represented by general formula (1) can be appropriately synthesized by known methods or commercially available products can be used. Examples of commercially available hydrophobically modified polyether urethanes represented by general formula (1) include, for example, ADEKANOL GT-700 ((PEG-240 / decyltetradecyl alcohol polyether-20 / HDI) copolymer) and ADEKA NOL GT-730 ((PEG-240 / decyltetradecyl alcohol polyether-20 / HDI) copolymer) (ADEKA Corporation).

[0049] The content of the associative tackifier in the sheet containing (A) is not particularly limited and can be appropriately selected according to the purpose, preferably 1-20 g / m². 2 More preferably 2-15 g / m 2 The preferred concentration is 3-12 g / m³. 2 Within the preferred range, it is advantageous to consider the point that the cosmetic can further improve its adhesion to the skin.

[0050] Other components in the sheet

[0051] Other components in the sheet containing the associative tackifier (A) are not particularly limited, and well-known cosmetic ingredients may be appropriately selected, provided they do not impair the effects of the present invention. Other components in the sheet containing the associative tackifier (A) may be used alone or in combination of two or more.

[0052] Examples of well-known ingredients used in cosmetics include those that are identical to other ingredients described in the item (B) Liquid Compositions described later.

[0053] The content of other components in (A) sheets containing associative tackifiers is not particularly limited and can be appropriately selected according to the purpose.

[0054] There are no particular limitations on the method for preparing the sheet containing the associative tackifier (A), and it can be appropriately selected according to the purpose. Preferred methods include preparing a solution in which the associative tackifier is dissolved in a solvent, contacting the sheet with the solution, and then drying it. By making the associative tackifier a solution once and then drying it, a cosmetic product can be made that can rapidly swell and form a gel network simply by contacting the liquid composition (B).

[0055] There are no particular restrictions on the solvent used to dissolve associative thickeners; it can be selected appropriately according to the purpose. Examples include water and alcohol.

[0056] There are no particular restrictions on the concentration of the associative thickener in the solution; it can be appropriately selected based on factors such as the content of the sheet material.

[0057] The solution may contain other components besides associative thickeners. Examples of such other components include, for instance, dipropylene glycol.

[0058] There are no particular restrictions on the method of contacting the solution with the sheet; any known method can be appropriately selected, such as coating, spraying, or impregnation. One method can be used alone, or two or more methods can be combined.

[0059] There are no particular restrictions on the drying method; any well-known method can be selected, such as heating drying or ventilation drying. One method can be used alone, or two or more methods can be combined.

[0060] The sheet containing the associative tackifier in (A) is preferably in a dry state before contact with the liquid composition in (B). A dry state means a water content of 10% by mass or less.

[0061] <(B) Liquid Composition>

[0062] (B) Liquid composition is a composition that comes into contact with (A) sheet containing an associative tackifier, and may also be called liquid cosmetic composition (lotion, lotion, beauty serum, etc.).

[0063] (B) In the liquid composition, well-known ingredients used in cosmetics may be used appropriately.

[0064] Examples of known ingredients used in cosmetics include: thickeners; moisturizing ingredients, sebum-absorbing ingredients, active ingredients in pharmaceuticals, surfactants; oils; water; alcohols; buffers; chelating agents; preservatives; polymers; powders; neutralizers; stabilizers; and fragrances. They can be used individually or in combination.

[0065] The concentration of the known ingredients used in cosmetics in the liquid composition (B) is not particularly limited and can be appropriately selected according to the purpose.

[0066] -Thickening agent-

[0067] (B) Liquid composition, preferably containing a thickener, based on the point that it can further improve the skin adhesion of the cosmetic.

[0068] There are no particular restrictions on the type of tackifier; it can be selected appropriately according to the purpose. Examples include associative tackifiers, electrostatic repulsive tackifiers, and tackifiers other than associative and electrostatic repulsive tackifiers. They can be used alone or in combination.

[0069] The associative tackifier is the same as that described in the item <(A) Sheets containing associative tackifier> above.

[0070] As an electrostatic repulsive tackifier, there are no particular limitations, and it can be appropriately selected according to the purpose. Examples include taurine-based synthetic polymer tackifiers and acrylate-based synthetic polymer tackifiers.

[0071] As a taurine-based polymeric thickener, polymers and / or copolymers (including cross-linked polymers) having 2-acrylamide-2-methylpropanesulfonic acid (acryloyl dimethyl taurine) or its salt (AMPS structure) as constituent units can be used.

[0072] Specific examples of taurine-based polymeric thickeners include: (Ammonium acryloyl dimethyl taurate / behenyl methacrylate polyether-25) crosspolymer (Aristoflex HMB, Clariant Japan), (Ammonium acryloyl dimethyl taurate / vinylpyrrolidone) copolymer (Aristoflex AVC, Clariant Japan), (Ammonium acryloyl dimethyl taurate / carboxyethyl acrylate) crosspolymer (Aristoflex TAC, Clariant Japan), polyacrylate crosspolymer-11 (Aristoflex Velvet, Clariant Japan), (Dimethacrylamide / sodium acryloyl dimethyl taurate) crosspolymer (SU-GEL, Toho Chemical), (hydroxyethyl acrylate / sodium acryloyl dimethyl taurate) copolymer (SEPINOV EMT10 Pinobu, SEPPIC), and (sodium acrylate / acryloyl dimethyl taurate / dimethacrylamide) crosspolymer (SEPINOV). P88 (SEPPIC), (sodium acryloyl dimethyl taurate / methacrylamide lauric acid) copolymer (AMO-51, Daito Kasei Corporation), (acrylamide / sodium acryloyl dimethyl taurate / acrylic acid) copolymer (ACUDYNE SCP, Dow Chemical Company), etc.

[0073] Specific examples of acrylate-based synthetic polymer tackifiers include (acrylate / stearyl methacrylate polyether-20) copolymer (ACULYN 22, Dow Chemical Company), etc.

[0074] There are no particular restrictions on tackifiers other than associative and electrostatic repulsive tackifiers; appropriate selection can be made according to the purpose. Examples include gum arabic, carrageenan, galangal, astragalus gum, carob gum, quince seed (Marmelo), casein, dextrin, gelatin, sodium pectate, sodium alginate, methylcellulose, ethylcellulose, carboxymethyl cellulose (CMC), hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol (PVA), polyvinyl methyl ether (PVM), PVP (polyvinylpyrrolidone), sodium polyacrylate, carboxyvinyl polymers, locust bean gum, guar gum, tamarind gum, dialkyl dimethyl ammonium sulfate cellulose, xanthan gum, magnesium aluminum silicate, bentonite, hydropyrite, magnesium aluminum silicate (VEEGUM), magnesium sodium silicate (Laponite), anhydrous silicate, etc.

[0075] (B) The concentration of the thickener in the liquid composition is not particularly limited and can be appropriately selected according to the purpose.

[0076] (B) In the liquid composition, the thickener preferably contains an associative thickener, based on the point that it can further improve the adhesion of the cosmetic to the skin.

[0077] The concentration of the associative tackifier in the liquid composition (B) is not particularly limited and can be appropriately selected according to the purpose, preferably 0.1 to 1.0% by mass, more preferably 0.3 to 0.7% by mass, and particularly preferably 0.4 to 0.6% by mass. Within the preferred range, the liquid composition (B) exhibits excellent penetration efficiency into the sheet containing the associative tackifier (A), and is also advantageous because it can further improve the skin adhesion of the cosmetic.

[0078] -Moisturizing ingredients-

[0079] As a moisturizing ingredient, there are no particular restrictions, and appropriate choices can be made according to the purpose. Examples include polyols such as glycerin, diglyceride, propylene glycol, 1,3-butanediol (BG), and dipropylene glycol (DPG); polyethylene glycol such as PEG-8; propylene glycol PEG / PPG-14 / 7 dimethyl ether; trehalose; and sorbitol.

[0080] -Sebum-absorbing ingredients-

[0081] There are no particular restrictions on the components used for sebum absorption; appropriate selection can be made according to the purpose. Examples include hydroxypropyl cyclodextrin and silicon dioxide.

[0082] -Pharmaceuticals-

[0083] As pharmaceutical agents, there are no particular restrictions, and appropriate selections can be made according to the purpose. Examples include vitamins such as vitamin A oil, retinol, retinol palmitate, pyridoxine hydrochloride, benzyl nicotinic acid, nicotinamide, dl-α-tocopherol nicotinic acid, magnesium ascorbate phosphate, vitamin D2, dl-α-tocopherol, pantothenic acid, and biotin; anti-inflammatory agents such as azulene and glycyrrhizin; whitening agents such as arbutin, 4-methoxysalicylic acid, tranexamic acid, ethyl vitamin C, and magnesium ascorbate phosphate; hormones such as estradiol; astringents such as zinc oxide and tannic acid; cooling agents such as L-menthol and camphor; and other agents such as chlorinated lysozyme, pyridoxine hydrochloride, L-serine, glycine, panthenol ether, hyaluronic acid, sodium hyaluronate, acetylated sodium hyaluronate, and sulfur.

[0084] In addition, various extracts exhibiting multiple medicinal effects can be added. Examples include extracts of silk flower fruit, scutellaria baicalensis, sweet tea, flat-shelled tortoise shell extract, black catechu extract, osmanthus extract, houttuynia cordata extract, phellodendron bark extract, licorice extract, peony root extract, peony bark extract, loofah extract, saxifrage extract, eucalyptus extract, clove extract, horse chestnut extract, cornflower extract, seaweed extract, thyme extract, and aloe vera.

[0085] -surfactant-

[0086] As a surfactant, there are no particular restrictions, and it can be selected appropriately according to the purpose. Examples include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.

[0087] As nonionic surfactants, there are no particular restrictions, and appropriate selection can be made according to the purpose. Examples include polyoxyethylene fatty acid esters, fatty acid polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil, polyglycerol fatty acid esters, dehydrated sorbitol fatty acid esters, and silicone surfactants.

[0088] As anionic surfactants, there are no particular restrictions, and appropriate selection can be made according to the purpose. Examples include fatty acid soaps, higher alkyl sulfates, alkyl ether sulfates, N-acylsarcosine, higher fatty acid amide sulfonic acid, phosphate salts, sulfosuccinates, alkylbenzene sulfonates, N-acylglutamates, higher fatty acid ester sulfates, sulfated oils, polyoxyethylene (hereinafter sometimes referred to as "POE") alkyl ether carboxylic acids, POE alkyl allyl ether carboxylic acids, higher fatty acid ester sulfonates, secondary alcohol sulfates, higher fatty acid alkyl alcohol amide sulfates, sodium lauroyl monoethanolamide succinate, sodium caseinate, N-acylmethyl taurate, alkyl quaternary ammonium salts, dialkyl quaternary ammonium salts, etc.

[0089] As cationic surfactants, there are no particular restrictions, and appropriate selection can be made according to the purpose. Examples include alkyl trimethylammonium salts, dialkyl dimethylammonium salts, alkyl pyridine salts, alkyl quaternary ammonium salts, alkyl dimethyl benzyl ammonium salts, alkyl isoquinoline onion salts, dialkyl morpholine salts, POE alkylamines, alkylamine salts, polyamine fatty acid derivatives, pentanol fatty acid derivatives, benzalkonium chloride, etc.

[0090] As amphoteric surfactants, there are no particular restrictions, and appropriate selection can be made according to the purpose. Examples include imidazoline amphoteric surfactants and betaine surfactants.

[0091] -Oil content-

[0092] As an oil, there are no particular restrictions, and it can be selected appropriately according to the purpose. Examples include polar oils, natural oils, synthetic oils, hydrocarbon oils, and silicone oils. They can be used alone or in combination.

[0093] As polar oils, there are no particular restrictions; appropriate selection can be made according to the purpose. Examples include isopropyl myristate, octyl palmitate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, isononyl isononanoate, isotriadecyl isononanoate, cetyl ethylhexanoate, pentaerythritol tetraethylhexanoate, diethylhexyl succinate, dioctyl succinate, distearate, glyceryl diisostearate, neopentyl glycol didecanoate, diisostearate, trimethylolpropane triisostearate, and tri-2- - Glyceryl hexanoate (triethylhexanoate), trimethylolpropane trioctanoate, trimethylolpropane triisostearate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyl dodecyl ester, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl palmitate, 2-ethylhexyl ethylhexanoate, triisostearin, PPG-3 dinepentanoate, tri(caprylic / capric)glyceryl ester, di(phytosterol / octyl dodecyl) lauroyl glutamic acid, dipentaerythritol hexahydroxystearate, etc.

[0094] As natural oils, there are no particular restrictions, and appropriate choices can be made according to the purpose. Examples include camellia oil, macadamia nut oil, olive oil, castor oil, safflower oil, soybean oil, tea seed oil, cocoa butter, coconut oil, hydrogenated coconut oil, palm oil, wood wax, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, lanolin, liquid lanolin, jojoba wax, hard lanolin, polyoxyethylene lanolin alcohol ether, and polyoxyethylene cholesterol ether.

[0095] In addition, natural oils can also be used as fragrances, such as: rose oil, jasmine oil, neroli oil, lavender oil, ylang-ylang oil, tuberose oil, clary sage oil, clove oil, peppermint oil, geranium oil, patchouli oil, sandalwood oil, cinnamon oil, coriander oil, nutmeg oil, pepper oil, lemon oil, orange oil, bergamot oil, myrrh oil, vetiver oil, iris oil, oakmoss oil, and other plant-derived natural fragrances; and musk oil, civet oil, castoreum oil, ambergris oil, and other animal-derived natural fragrances.

[0096] As synthetic oils, there are no particular restrictions, and appropriate selections can be made according to the purpose. Examples include isopropyl myristate, octyl dodecyl myristate, isopropyl palmitate, 12-hydroxystearic acid cholesterol ester, ethylene glycol di-2-ethylhexyl acid, dipentaerythritol fatty acid ester, pentaerythritol tetra-2-ethylhexyl acid, tri-2-ethylhexyl acid glycerol, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, castor oil fatty acid methyl ester, and triethylhexanoate glycerol.

[0097] In addition, synthetic oils can also be used as fragrance substances. For example, substances with chemical structures such as alcohols, aldehydes, ketones, esters, lactones, phenols, acetals, or fragrance groups can be listed. Specific examples include: hydrocarbons such as limonene and β-caryophyllene; alcohols such as cis-3-hexenol, linalool, farnesol, β-phenylethanol, geraniol, citronellol, terpineol, menthol, santalol, bagadanol, and bramahnol; aldehydes such as 2,6-nonadienal, citral, α-hexylcinnamaldehyde, l-carvone, cyclopentadecanone, neolichal, and lily aldehyde; ketones such as β-ionone, damascene, methylionone, irisone, Iso E Super, acetylated cedrene, and muscone; esters such as linalyl acetate, benzyl benzoate, benzyl acetate, methyl dihydrojasmone, and methyl jasmone; lactones such as γ-undecyl lactone, jasmone lactone, cyclopentadecanol, and ethylene glycol brassinate; phenols such as eugenol; acetals such as phenylacetaldehyde dimethyl acetal; rose oxide, indole, nerolidin, etc.

[0098] As a hydrocarbon oil, there are no special restrictions, and appropriate choices can be made according to the purpose. Examples include flowing paraffin, ceresin, squalene, paraffin, isoparaffin, pure ceresin, petrolatum, microcrystalline wax, hydrogenated polydecene, isohexadecane, etc.

[0099] There are no particular restrictions on silicone oils; they can be selected appropriately according to the purpose. Examples include chain silicones such as dimethyl polysiloxane (polydimethylsiloxane), methylphenyl polysiloxane (phenylmethyl silicone oil), and methylhydropolysiloxane; cyclic silicones such as decamethylcyclopentasiloxane and dodecylcyclohexanesiloxane; and modified silicones such as amino-modified silicone oil, polyether-modified silicone oil, carboxyl-modified silicone oil, alkyl-modified silicone oil, ammonium salt-modified silicone oil, and fluorine-modified silicone oil.

[0100] There are no particular limitations on the method for preparing (B) liquid compositions, and a known method for preparing liquid cosmetic compositions may be appropriately selected according to the purpose.

[0101] The viscosity of the liquid composition (B) is not particularly limited and can be appropriately selected according to the purpose, preferably 1,000 mPa·s or less, more preferably 400 mPa·s or less, and particularly preferably 50 mPa·s or less. By using the low-viscosity liquid composition (B), the impregnation efficiency of the sheet containing the associative tackifier (A) can be improved.

[0102] There are no particular limitations on the method for determining the viscosity of the liquid composition (B). A known method may be appropriately selected, for example, a type B viscometer (ViscoQC 100L, Anton Paar Japan) may be used, and the viscosity may be determined under the following conditions.

[0103] -Determination Conditions-

[0104] Rotor: No.1

[0105] Rotation speed: 12 rpm

[0106] Measurement time: 1 minute

[0107] Temperature: 25℃

[0108] As (B) liquid composition, aqueous cosmetics may be appropriately used. In this invention, aqueous cosmetics refer to liquid compositions that are primarily composed of an aqueous medium, and are free of oil or contain less than 30% by mass of oil.

[0109] Examples of aqueous media include water and lower alcohols. Examples of lower alcohols include alcohols with 5 or fewer carbon atoms. Specific examples of lower alcohols include methanol, ethanol, propyl alcohol, isopropanol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol.

[0110] Other components in cosmetics

[0111] Other components in cosmetics are not particularly limited as long as they do not impair the effects of the present invention, and can be appropriately selected according to the purpose. Examples include components (sprayers, sponges, brushes, etc.) used when bringing the liquid composition (B) into contact with the sheet containing the associative tackifier (A).

[0112] In addition, when the liquid composition (B) comes into contact with the sheet containing the associative tackifier (A), no special parts may be used, and the sheet containing the associative tackifier (A) may come into contact with the liquid composition (B) directly from the container containing the liquid composition (B).

[0113] There are no particular limitations on the method of contacting the sheet containing (A) the associative tackifier with the liquid composition (B) before use. The appropriate method can be selected according to the purpose. For example, the method of coating or spraying the sheet containing (A) the associative tackifier with the liquid composition (B) or the method of immersing the sheet containing (A) the associative tackifier in the liquid composition (B) are examples.

[0114] When coating or spraying (B) the liquid composition, the coating or spraying can be performed before or after the sheet containing the associative tackifier (A) is placed on the attachment site.

[0115] In this invention, "before use" refers to the time before using the cosmetic product.

[0116] The amount of liquid composition (B) in contact with the sheet containing (A) associative tackifier is not particularly limited and can be appropriately selected according to the purpose. It is preferably 3 to 20 times, more preferably 5 to 15 times, relative to the mass of the sheet used for the sheet containing (A) associative tackifier (the mass of the sheet before containing the associative tackifier).

[0117] There are no particular restrictions on the location where the sheet is attached; it can be selected appropriately according to the purpose, with preference given to attaching it to at least a portion of the face.

[0118] According to the present invention, by contacting (A) a sheet containing an associative tackifier and (B) a liquid composition, the associative tackifier rapidly swells and forms a gel network between the adhered skin and the sheet, resulting in high adhesion. Therefore, excellent skin-lifting effect (enhanced tightening effect) is expected, making it suitable for skin care, and more preferably for use in cosmetics such as sheet masks for tightening.

[0119] (Kit)

[0120] One embodiment relates to a kit for use in a cosmetic, which, prior to use, brings a sheet containing an associative tackifier into contact with a liquid composition. The kit comprises (A) a sheet containing an associative tackifier and / or (B) a liquid composition, and may also contain other components as needed.

[0121] The kit may contain either (A) a sheet containing an associative tackifier and (B) a liquid composition, or both.

[0122] In this invention, "kit" refers to a kit in which each component exists independently. For example, a kit is not limited to a collection of (A) a sheet containing an associative tackifier and (B) a liquid composition, and other components as needed. For example, the kit scope of this invention includes situations where (A) a sheet containing an associative tackifier and (B) a liquid composition, and other components as needed, are independently manufactured and sold, or where the use of (A) a sheet containing an associative tackifier and (B) a liquid composition, and other components as needed, is substantially induced, etc.

[0123] <(A) Sheets containing associative tackifiers>

[0124] The sheet containing the associative tackifier in (A) of the kit is the same as the sheet containing the associative tackifier described in the above (cosmetics) item.

[0125] <(B) Liquid Composition>

[0126] The liquid composition (B) in the kit is the same as the liquid composition (B) described in the above (cosmetics) item.

[0127] <Other components of the kit>

[0128] Other components of the kit are not particularly limited as long as they do not impair the effects of the invention, and can be appropriately selected according to the purpose. Examples include, for instance, the instruction manual, and components used when bringing the liquid composition of (B) into contact with the sheet containing the associative tackifier of (A) (sprayer, sponge, brush, etc.).

[0129] Examples of instruction manuals include documents describing (A) the use of sheets containing associative tackifiers, and documents describing (B) the use of liquid compositions. Instruction manuals may be general documents included as part of a kit, or they may be printed on packaging containers, etc.

[0130] There are no particular limitations on the content of the instructions for use, and they can be appropriately selected according to the purpose. For example, the above-described content of the present invention can be used as an example.

[0131] (Liquid composition)

[0132] One embodiment involves a liquid composition that is used in contact with a sheet containing an associative tackifier before use.

[0133] The liquid composition is the same as the liquid composition (B) described in the above (cosmetics) section.

[0134]

Example

[0135] The following examples and comparative examples are provided to further illustrate the implementation methods, but the implementation methods are not limited to these examples and comparative examples.

[0136] (Examples 1-10, Comparative Examples 1-6)

[0137] <(A) Sheet Preparation>

[0138] As an example of sheet material, nonwoven fabric A (CQT-70, Daiwa Boshoku Co., Ltd.) or nonwoven fabric B (nylon nanofiber, Toray Industries, Ltd.) is used.

[0139] <<Sheet Elongation>>

[0140] The elongation of nonwoven fabrics A and B was measured as follows.

[0141] Cut the dried nonwoven fabric sheet (before the coating process described later) into short strips of 3cm x 10cm. Furthermore, the nonwoven fabric sheet should be cut such that the side parallel to the length of the fibers is the long side (10cm).

[0142] The cut nonwoven fabric piece was clamped in a rheometer (FUDOH RTC rheometer, Rheotech) for 2.5 cm along its long side, and fixed in a position that was not loose. A tensile test was performed at a speed of 10 mm / min for 3 minutes, and the length of the test piece after the test was measured.

[0143] The results showed that the lengths of the test pieces after the experiment were: 15.3 cm for nonwoven fabric A and 10.4 cm for nonwoven fabric B (both are the average values ​​of three tests). Therefore, the elongation can be confirmed as 153% for nonwoven fabric A and 104% for nonwoven fabric B. Nonwoven fabric A is a nonwoven fabric with good tensile properties, while nonwoven fabric B is a nonwoven fabric that is difficult to stretch.

[0144] Furthermore, it was determined that the direction perpendicular to the length of the nonwoven fabric fibers was the long side. When the same tensile test was conducted, there was almost no difference in length between nonwoven fabrics A and B before and after the test.

[0145] <<Coating>>

[0146] Adjust the ingredients listed in Tables 1-3 to the amounts listed in Tables 1-3, and prepare the coating solution (formulation as described below). Specifically, calculate the amount of ingredients required for the processed nonwoven fabric based on the unit area weight, and dissolve them in a solution of water and dipropylene glycol (DPG).

[0147] The solution was coated onto a nonwoven fabric and dried to prepare sheets containing the ingredients listed in Tables 1-3.

[0148] -Formula for the coating solution-

[0149] · Alcohol 30% by mass

[0150] ·DPG 5% by mass

[0151] • Contains ingredients※ (adjusted according to the amounts listed in Tables 1-3)

[0152] • Residual ion-exchange water

[0153] Total 100% by mass

[0154] In addition, the detailed composition of the sheet is as follows.

[0155] • Associative tackifier: (PEG-240 / decyltetradecyl alcohol polyether-20 / HDI) copolymer (ADEKA NOL GT-700, ADEKA Corporation)

[0156] • Polysaccharides: Xanthan gum (KELTROL, CP Kelco)

[0157] • Electrostatic repulsive tackifier: (Dimethacrylamide / Sodium acryloyldimethyl taurate) cross-linked polymer (SU-GEL, Toho Chemical Co., Ltd.)

[0158] <(B) Formulation of Liquid Compositions>

[0159] The components were mixed according to the composition and content (mass%) shown in Tables 1 to 3 below to prepare the liquid compositions (aqueous cosmetics) of Examples 1 to 10 and Comparative Examples 1 to 6.

[0160] In addition, the viscosity of the liquid composition prepared under the following test conditions was measured using a Type B viscometer (ViscoQC 100L, Anton Paar Japan).

[0161] -Determination Conditions-

[0162] Rotor: No.1

[0163] Rotation speed: 12 rpm

[0164] Measurement time: 1 minute

[0165] Temperature: 25℃

[0166] Details of the thickener used in the liquid compositions of the above embodiments and comparative examples (B) are as follows.

[0167] [Tackifier]

[0168] • (PEG-240 / decyltetradecyl alcohol polyether-20 / HDI) copolymer (ADEKA NOL GT-700, ADEKA Corporation)

[0169] Xanthan gum (KELTROL, CP Kelco)

[0170] Carbopol 981 (Lubrizol)

[0171] <Evaluation>

[0172] The evaluation used sheets cut into the shape of a face.

[0173] Prior to evaluation, the sheet was immersed in 8 times its weight in the liquid composition (immersion ratio: 8 times) relative to the weight of the cut sheet. Then, without waiting time, the sheet was applied to the face, and the adhesion was evaluated based on the following evaluation criteria. The evaluation was determined by a specialized panel of 3 people.

[0174] -Evaluation Criteria-

[0175] A: It feels very close to the skin.

[0176] B: It feels very snug.

[0177] C: I did not feel a strong sense of closeness.

[0178] D: I feel the seal is weak.

[0179] Table 1

[0180]

[0181] Table 2

[0182]

[0183] Table 3

[0184]

[0185] As shown in Tables 1-3, it can be confirmed that the presence of associative tackifiers in the sheet material improves the adhesion of cosmetics to the skin. It can also be confirmed that the presence of associative tackifiers in the liquid composition further enhances the adhesion to the skin. Furthermore, it can be confirmed that even sheets that are difficult to stretch have an effect on improving adhesion.

[0186] Examples of embodiments of the present invention include the following.

[0187] <1> A cosmetic product comprising (A) a sheet containing an associative thickener and (B) a liquid composition.

[0188] Before use, the sheet containing the associative tackifier (A) is brought into contact with the liquid composition (B).

[0189] <2> According to the above <1> The cosmetic product, wherein the (B) liquid composition contains an associative thickener.

[0190] <3> According to the above <2> In the cosmetic product described above, the concentration of the associative thickener in the liquid composition of (B) is 0.1 to 1.0% by mass.

[0191] <4> According to the above <1> to <3> The cosmetic product according to any one of the claims, wherein the associative thickener is a hydrophobically modified polyether urethane.

[0192] <5> According to the above <1> to <4> The cosmetic product according to any one of the claims, wherein the content of the associative tackifier in the sheet containing the associative tackifier in claim (A) is 1 to 20 g / m 2 .

[0193] <6> According to the above <1> to <5> The elongation (length in the elongation direction after the elongation test / length in the elongation direction before the elongation test × 100) of any of the cosmetics described in (A) is less than 120% when the sheet containing the associative tackifier is subjected to a 3-minute tensile test at a speed of 10 mm / min.

[0194] <7> According to the above <1> to <6> The cosmetic product described in any one of the claims, wherein the sheet used in the (A) sheet containing the associative tackifier is a nonwoven fabric.

[0195] <8> According to the above <1> to <7> The cosmetic product described in any one of the claims, wherein the viscosity of the liquid composition (B) is less than 1,000 mPa·s.

[0196] <9> According to the above <1> to <8> The cosmetic product described in any one of the claims, wherein the liquid composition (B) is an aqueous cosmetic product.

[0197] <10> A kit for use in cosmetics, wherein the cosmetic, prior to application, brings a sheet containing an associative tackifier into contact with a liquid composition.

[0198] The kit contains (A) a sheet containing an associative tackifier and / or (B) a liquid composition.

[0199] <11> According to the above <10> The kit, wherein the (B) liquid composition contains an associative thickener.

[0200] <12> According to the above <11> In the kit described above, the concentration of the associative tackifier in the liquid composition of (B) is 0.1 to 1.0% by mass.

[0201] <13> According to the above <10> to <12> The kit described in any one of the claims, wherein the associative tackifier is a hydrophobically modified polyether urethane.

[0202] <14> According to the above <10> to <13> The kit described in any one of the following, wherein the content of the associative tackifier in the sheet containing the associative tackifier in (A) is 1 to 20 g / m². 2 .

[0203] <15> According to the above <10> to <14> The kit described in any one of the following, when used for a sheet of the (A) sheet containing an associative tackifier, is subjected to a 3-minute tensile test at a speed of 10 mm / min, has an elongation (length in the elongation direction after the tensile test / length in the elongation direction before the tensile test × 100) of less than 120%.

[0204] <16> According to the above <10> to <15> The kit described in any one of the following, wherein the sheet used for the sheet containing the associative tackifier in (A) is a nonwoven fabric.

[0205] <17> According to the above <10> to <16> The kit described in any one of the following, wherein the viscosity of the (B) liquid composition is below 1,000 mPa·s.

[0206] <18> According to the above <10> to <17> The kit described in any one of the claims, wherein the (B) liquid composition is an aqueous cosmetic.

[0207] <19> A liquid composition for use in contact with a sheet containing an associative tackifier.

[0208] As described above, this disclosure has been based on specific implementation methods and embodiments, but these implementation methods and embodiments are merely examples, and this disclosure is not limited to the above implementation methods and embodiments. The above implementation methods can be implemented in various other forms, and various combinations, omissions, substitutions, additions, modifications, etc., can be made without departing from the spirit of the invention. These implementation methods and their variations are included not only within the scope and spirit of the invention, but also within the scope of the invention and its equivalents as described in the claims.

Claims

1. A cosmetic product comprising (A) a sheet containing an associative thickener and (B) a liquid composition. Before use, the sheet containing the associative tackifier (A) is brought into contact with the liquid composition (B).

2. The cosmetic according to claim 1, wherein the (B) liquid composition contains an associative thickener.

3. The cosmetic according to claim 2, wherein the concentration of the associative thickener in the liquid composition (B) is 0.1 to 1.0% by mass.

4. The cosmetic according to claim 1, wherein the associative thickener is a hydrophobically modified polyether urethane.

5. The cosmetic according to claim 1, wherein the content of the associative tackifier in the sheet containing the associative tackifier in (A) is 1-20 g / m². 2 .

6. The cosmetic according to claim 1, wherein when the sheet of the sheet containing the associative tackifier in (A) is subjected to a 3-minute tensile test at a speed of 10 mm / min, the elongation is less than 120%, wherein the elongation is: length in the elongation direction after the tensile test / length in the elongation direction before the tensile test × 100.

7. The cosmetic according to claim 1, wherein the sheet used in the (A) sheet containing the associative tackifier is a nonwoven fabric.

8. The cosmetic according to claim 1, wherein the viscosity of the (B) liquid composition is below 1,000 mPa·s.

9. The cosmetic according to claim 1, wherein the (B) liquid composition is an aqueous cosmetic.

10. A kit for use in a cosmetic, wherein, prior to use, a sheet containing an associative tackifier is brought into contact with a liquid composition. The kit comprises (A) a sheet containing an associative tackifier and / or (B) a liquid composition.

11. The kit according to claim 10, wherein the (B) liquid composition contains an associative thickener.

12. The kit according to claim 11, wherein the concentration of the associative tackifier in the (B) liquid composition is 0.1 to 1.0% by mass.

13. The kit according to claim 10, wherein the associative tackifier is a hydrophobically modified polyether urethane.

14. The kit according to claim 10, wherein the content of the associative tackifier in the sheet containing the associative tackifier in (A) is 1-20 g / m². 2 .

15. The kit according to claim 10, wherein when the sheet for the (A) sheet containing the associative tackifier is subjected to a 3-minute tensile test at a speed of 10 mm / min, the elongation is less than 120%, said elongation being: length in the elongation direction after the tensile test / length in the elongation direction before the tensile test × 100.

16. The kit according to claim 10, wherein the sheet used for the sheet containing the associative tackifier in (A) is a nonwoven fabric.

17. The kit according to claim 10, wherein the viscosity of the (B) liquid composition is below 1,000 mPa·s.

18. The kit according to claim 10, wherein the (B) liquid composition is an aqueous cosmetic.

19. A liquid composition for use in contact with a sheet containing an associative tackifier before use.

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