Personal care compositions and methods for suppressing malodor

Abstract

The present invention aims to provide a personal care composition capable of suppressing malodor without spatial constraints, and a method for suppressing malodor. The solution is to make the personal care composition a personal care composition containing at least a malodor component and a fragrance component having a content greater than the malodor component, wherein the malodor containing the malodor component is emitted from an object different from a user who uses the personal care composition. The method for suppressing malodor is that the user applies the personal care composition.

Description

Technical Field

[0001] The present invention relates to personal care compositions and methods of suppressing malodors. Background Art

[0002] In a society with an increased population density, such as that seen in some cities, bad odors and peculiar smells in the living environment have become one of the major problems. For example, as the main bad odors generated in the home, there are the odors of kitchen waste, pets, excrement, tobacco, etc. As one of the methods for removing these odors, a method of using a substance with a strong fragrance as a deodorant to mix the fragrance with the bad odor to mask the bad odor is used.

[0003] However, if this deodorization method is adopted, a fragrance that is stronger than the malodor is used, so the intensity of the malodor as a whole after mixing with the malodor becomes stronger than the intensity of the malodor before mixing, resulting in frequent unpleasantness. In addition, even if the malodor before mixing can be masked, the malodor after mixing is often felt as a new and unpleasant odor. In this way, conventional deodorants cannot fundamentally improve the unpleasantness of malodor.

[0004] Under such circumstances, the applicant discovered that if several flavor compositions are mixed in blended flavors or perfumed cosmetics, the aroma of the entire blended flavor or the entire product will not be disturbed, and even at a low concentration, a tobacco odor deodorizing effect is exhibited, and a tobacco odor deodorizing flavor composition based on such a finding is proposed (Patent Document 1). The tobacco odor deodorizing flavor composition is an excellent deodorant that does not make people feel that the odor after mixing is a new or other unpleasant odor, and has a refreshing citrus aroma.

[0005] On the other hand, among bad odors, there are not only the bad odors caused by external factors such as the living environment as mentioned above, but also internal factors, namely, sweat odor, bad breath, foot odor, underarm odor, scalp odor, and old age odor, which are odors from various parts of the human body, which are a combination of odors emitted from the trunk. Although old age odor is clearly different in quality from odors such as sweat odor, underarm odor, foot odor, and sweat odor, the unpleasantness of the odor and its impact on people are as great as those of the above-mentioned underarm odor, foot odor, and sweat odor. The applicant has proposed a fragrance composition that can mask and / or reconcile (ハーモナージュ) the old age odor and can eliminate the unpleasantness of the old age odor (for example, Patent Document 2).

[0006] However, the above-mentioned bad smell caused by internal factors is specifically one's own bad smell, and it is not a defense method for internal bad smells caused by others to suppress the bad smell. In addition, the defense method for bad smells caused by external factors is not only to mask them in advance with fragrances, but also to defend them after the fact.

[0007] As mentioned above, although fragrances and deodorants can be used to suppress and prevent bad odors, the methods are limited. From this point of view, Patent Document 3 proposes a bad odor inhibitor with an antagonist to OR51E1 as an active ingredient. The following purport is recorded: OR51E1 is an olfactory receptor that specifically recognizes bad odors in humans. If the above-mentioned bad odor inhibitor is used, in addition to valeric acid and isovaleric acid, various bad odors such as n-butyric acid and caproic acid can be suppressed by the antagonist action on OR51E1 bound to these odor substances.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: Japanese Patent Application Publication No. 2002-275495

[0011] Patent Document 2: Japanese Patent Application Laid-Open No. 11-286428

[0012] Patent Document 3: Japanese Patent Application Publication No. 2018-121865 Summary of the invention

[0013] Problems to be solved by the invention

[0014] The odor suppressor of Patent Document 3 utilizes receptor blockade (adaptation) of the olfactory receptor of OR51E1, and specifically, suppresses the odors of valeric acid and isovaleric acid, etc., by acting on the receptors through n-butyric acid, hexanoic acid, etc. Although the odor suppressor of Patent Document 3 can suppress odors in a predetermined space where the odor suppressor exists without removing the odorous substance by adsorption or masking by other fragrances, etc., and can achieve a comfortable odor environment, it cannot suppress odors when it is separated from the predetermined space, that is, in a space where the odor suppressor does not exist.

[0015] The present invention is based on a concept that is completely different from, or in a sense, a reversal of, conventional fragrances, deodorants, or malodor suppressants, and an object of the present invention is to provide a personal care composition and a method for suppressing malodor that can suppress malodor without spatial constraints.

[0016] Means for solving problems

[0017] The personal care composition of the present invention is a personal care composition comprising at least a malodor component and a fragrance component in a larger content than the malodor component, and the malodor comprising the malodor component is emitted from an object different from a user who uses the personal care composition.

[0018] The ratio of the content of the aroma component to the content of the malodor component (content of the aroma component / content of the malodor component) is preferably 2,000 to 200,000.

[0019] The bad smell including the bad smell component is preferably at least one selected from the group consisting of sweat odor, old age odor, tobacco odor, breath odor, and foot odor.

[0020] The malodorous component is preferably represented by the following general formula (I), (II) or (III).

[0021]

[0022] (R 1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. )

[0023]

[0024] (R 2 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. )

[0025]

[0026] (R 3 represents a hydrogen atom or an alkyl group having 1 or 2 carbon atoms. )

[0027] The malodorous component is preferably at least one selected from the group consisting of isovaleric acid, butyric acid, acetic acid, 2-nonenal (= trans-2-nonenal, referred to as 2-nonenal in the present specification), 2-octenal, and guaiacol.

[0028] The aroma component is preferably at least one selected from the group consisting of lavender oil, geranium oil, borneol, 1,8-cineole, thymol, eugenol, and cardamom oil.

[0029] The personal care composition of the present invention is preferably in the form of a cream, gel, balm, paste, ointment or spray.

[0030] The personal care compositions of the present invention are preferably applied around the nose of the user.

[0031] The malodor suppressing methods of the present invention utilize the personal care compositions of the present invention.

[0032] The method for suppressing bad odor of the present invention is that a user uses a personal care composition containing a bad odor component and a fragrance component in an amount greater than the bad odor component, and the user is less likely to feel bad odor emitted from sources other than the user.

[0033] The bad smell other than that of the user is preferably at least one selected from the group consisting of sweat odor, old age odor, tobacco odor, breath odor, and foot odor.

[0034] The personal care composition is preferably applied under the nose of the user.

[0035] Effects of the Invention

[0036] The personal care composition of the present invention is a personal care composition containing at least a malodor component and a fragrance component whose content is greater than the malodor component, and the malodor containing the malodor component is emitted from an object different from the user who uses the personal care composition, so the user who applies the personal care composition can be free from spatial constraints and is not easily aware of the malodor emitted from the object different from the user. In addition, the malodor suppression method of the present invention uses the personal care composition of the present invention, so the user can be free from spatial constraints and is not easily aware of the malodor emitted from the object different from the user. DETAILED DESCRIPTION

[0037] Hereinafter, the present invention will be described in detail.

[0038] The personal care composition of the present invention is a personal care composition comprising at least a malodor component and a fragrance component in a larger content than the malodor component, and the malodor comprising the malodor component is emitted from an object different from a user who uses the personal care composition.

[0039] (Odor component)

[0040] The malodor components contained in the personal care composition of the present invention include malodors emitted from objects different from the user. Here, the so-called different objects include, in addition to humans other than the user, pet animals such as dogs and cats, livestock and other living things, various organic substances that generate odors such as tobacco, kitchen waste, waste, and excrement. In particular, as the malodor containing the malodor components, at least one selected from the group consisting of sweat odor, senile odor, tobacco odor, oral odor, and foot odor can be mentioned.

[0041] In particular, examples of the malodorous components include substances represented by the above-mentioned general formula (I), (II) or (III).

[0042] R in the general formula (I) 1 It represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. Examples of the alkyl group having 1 to 4 carbon atoms include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl and tert-butyl. Among them, a hydrogen atom, ethyl and isopropyl are more preferred.

[0043] R of the general formula (II) 2 The group representing a hydrogen atom or an alkyl group having 1 to 5 carbon atoms includes methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, 1-methylbutyl and the like, and among them, n-pentyl is more preferred.

[0044] As R of the general formula (III) 3 , represents a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, among which a hydrogen atom is more preferred.

[0045] In particular, the malodor component is preferably at least one selected from the group consisting of isovaleric acid, butyric acid, acetic acid, 2-nonenal, 2-octenal, and guaiacol.

[0046] (Aroma ingredients)

[0047] Aroma components are components that are blended with malodor components and can be widely selected from organic chemical substances with aroma such as natural flavors and synthetic flavors of animal, plant, and mineral systems. Specifically, as natural flavors, for example, geranium oil, lavender oil, cardamom oil, anise oil, basil oil, bergamot oil, rosewood oil, ylang-ylang oil, cedar oil, chamomile oil, cinnamon oil, clove oil, elemi oil, eucalyptus oil, grapefruit oil, Japanese cypress oil, jasmine oil, laurel oil, lavender oil, lime oil, mandarin oil, citrus oil, marjoram oil, peppermint oil, spearmint oil, orange oil, patchouli oil, pepper oil, neroli oil, rose oil, rosemary oil, Fragrance oil, sage oil, peppermint oil, sandalwood oil, marigold oil, valerian oil, vetiver oil, ylang ylang oil (ilan ilan oil), grapefruit oil, etc., as synthetic fragrances, for example, borneol, 1,8-cineole, thymol, eugenol, limonene, β-caryophyllene, cis-3-hexenol, farnesol, β-phenylethyl alcohol, citral, lyral, lilyral, L-carvone, irone, cyclopentadecanone, benzyl benzoate, rose oxide, menthol, benzyl acetate, jasmine lactone, etc., but are not limited to these examples. The fragrance can be used alone or in combination of two or more.

[0048] The personal care composition contains a malodor component and a fragrance component whose content is greater than that of the malodor component. As described above, the fragrance component is a component that is harmonized with the malodor component. Therefore, the malodor component of the personal care composition itself is harmonized with the fragrance component, and contains only the malodor component that exerts an adaptation effect. Here, the so-called harmonization means that the malodor component and the fragrance component are formulated to a state where no unpleasantness is felt. More specifically, it means a state where the odor intensity is 2 or less based on the 6-level odor intensity representation method of the Malodor Prevention Method shown in the following examples. In addition, the so-called adaptation means that the malodor component is introduced into the olfactory receptors located in the olfactory cells, and as a result, the malodor is not easily felt. The so-called less likely to feel malodor means that the odor intensity based on the 6-level odor intensity representation method of the Malodor Prevention Method shown in the following examples is reduced by 0.5 levels or more in terms of average value from the case where there is no personal care composition (only the case of malodor).

[0049] The personal care composition contains malodor components and fragrance components. The ratio of the content of the fragrance component to the content of the malodor component (content of the fragrance component / content of the malodor component) is preferably 2000 to 200000, preferably 2000 to 20000, although it depends on the types of the malodor component and the fragrance component and their combination. By making the ratio of the content of the fragrance component to the content of the malodor component 2000 or more, a more harmonizing effect can be obtained, and by making it 200000 or less, a more adaptable effect can be obtained.

[0050] The content of the malodor component relative to the total amount of the personal care composition depends on the types of the malodor component and the fragrance component, their combination, the form of the personal care composition, etc., but is preferably 0.001 to 1 ppm, preferably 0.003 to 0.8 ppm, and more preferably 0.005 to 0.5 ppm. When the content of the malodor component is 0.001 ppm or more, an adaptability effect can be obtained, and when it is 1 ppm or less, a more harmonizing effect can be obtained.

[0051] The content of the fragrance component relative to the total amount of the personal care composition is related to the types of malodor components and fragrance components, their combination, the form of the personal care composition, etc., but is preferably 0.01 to 10% by mass, preferably 0.1 to 5% by mass, and more preferably 0.6 to 4% by mass. When the content of the fragrance component is 0.01% by mass or more, a more harmonious effect can be obtained, and when it is 10% by mass or less, a fragrance of appropriate concentration can be obtained.

[0052] The personal care composition of the present invention comprises a malodor component and a fragrance component in a larger content than the malodor component. Since the malodor component and the fragrance component are blended, the personal care composition itself is not likely to smell bad. Therefore, the user can comfortably apply the personal care composition, and can suppress malodor emitted from an object different from the user without being restricted by space.

[0053] In particular, when the malodor component is a substance represented by the above-mentioned general formula (I), (II) or (III), in particular, when the malodor component is at least one selected from isovaleric acid, butyric acid, acetic acid, 2-nonenal, 2-octenal and guaiacol, and the aroma component is at least one selected from lavender oil, geranium oil, borneol, 1,8-cineole, thymol, eugenol and cardamom oil, the harmonizing effect can be further exerted.

[0054] Here, the effect of the personal care composition of the present invention is described in more detail. If the personal care composition of the present invention enters the nose of the user, the malodor components contained in the personal care composition are introduced into the olfactory receptors located in the olfactory cells. In the case of only the malodor components, the user perceives the malodor, but since the fragrance components of the personal care composition are components that are harmonized with the malodor components, the malodor components are not perceived, and even if the malodor components are introduced, the malodor components are not easily felt. On the other hand, the malodor components contained in the personal care composition are introduced into the olfactory receptors located in the olfactory cells, and as a result, the olfactory cells adapt to the malodor components, so it is not easy to feel the malodor emitted from an object different from the user. In this way, the personal care composition of the present invention has a harmonizing effect and an adapting effect, so it can be applied to oneself without being easily felt. The malodor emitted from an object different from oneself.

[0055] As described above, the personal care composition of the present invention acts on the olfactory cells of the user, and is therefore preferably used around the nose of the user. Specifically, in addition to under the nose, on the nose, around the nose wings, inside the nose, etc., it can also be used indirectly around the nose by using a mask or the like.

[0056] In the personal care composition of the present invention, in addition to the above-mentioned malodor components and fragrance components, as long as they do not affect the effect of the present invention, the components used in the skin external preparations of common cosmetics and quasi-drugs can be mixed and manufactured according to conventional methods. Specific mixable components are listed below. It should be noted that, in the following, EO is the abbreviation of ethylene oxide, PO is the abbreviation of propylene oxide, POE is the abbreviation of polyoxyethylene, and POP is the abbreviation of polyoxypropylene.

[0057] Examples of the moisturizing agent include polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucopolysaccharide sulfate, caronic acid (caroninic acid), atelocollagen, sodium lactate, bile acid salts, dl-pyrrolidonecarboxylate, short-chain soluble collagen, diglycerol (EO) PO adduct, smilax china extract, yarrow extract, and sweet osmanthus extract.

[0058] Examples of the powder component include inorganic powders (e.g., talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, red mica, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silicon dioxide, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, metal soaps (e.g., zinc myristate, calcium palmitate, , aluminum stearate), boron nitride, etc.); organic powders (for example, polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene and acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.); inorganic white pigments (for example, zinc oxide, etc.); inorganic red pigments (for example, iron titanate, etc.); inorganic purple pigments (for example, manganese violet, cobalt violet, etc.); inorganic green pigments (for example, chromium oxide, etc.); , chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine, navy, etc.); pearlescent pigments (e.g., titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, colored titanium oxide-coated mica, bismuth oxychloride, fish scale foil, etc.); metal powder pigments (e.g., aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium or aluminum lakes (e.g., Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 227, etc.); organic pigments such as Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, and Blue No. 1, etc.); natural pigments (for example, chlorophyll, β-carotene, etc.), etc.

[0059] Examples of the liquid oil include avocado oil, camellia oil, turtle oil, macadamia oil, corn bran oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, camellia oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, ginkgo oil, rice bran oil, white tung oil, Japanese tung oil, jojoba oil, germ oil, and triglycerol.

[0060] Examples of the solid fats and oils include cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, mutton tallow, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat, wood wax kernel oil, hydrogenated oil, beef saddle fat, wood wax, and hydrogenated castor oil.

[0061] Examples of the waxes include beeswax, candelilla wax, cotton wax, carnauba wax, laurel wax, worm wax, spermaceti, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl ester, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol ester, and POE hydrogenated lanolin alcohol ether.

[0062] Examples of the hydrocarbon oil include liquid paraffin, ozokerite, pristane, paraffin, ceresin, squalene, vaseline, and microcrystalline wax.

[0063] Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall oil acid, isostearic acid, linoleic acid, linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

[0064] Examples of higher alcohols include straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, a mixture of cetostearyl alcohol and the like); branched-chain alcohols (e.g., monostearyl glyceryl ether (baty alcohol), 2-decyltetradecynyl alcohol, lanolin alcohol, cholesterol, phytosterols, hexyldodecanol, isostearyl alcohol, octyldodecanol and the like); and the like.

[0065] Examples of the synthetic ester oil include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2-heptylundecanoic acid glyceryl, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tetra-2-ethylhexanoic acid pentaerythritol fatty acid ester, Tetraethanol ester, tri-2-ethylhexanoin, tricaprylin, triisopalmitin, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, trimyristin, tri-2-heptylundecanoic acid glyceryl, castor oil fatty acid methyl ester, oleyl oleate, acetylated glycerol, 2-heptylundecanoic acid, diisobutyl adipate, 2-octyldodecyl N-lauroyl-L-glutamate, di-2-heptylundecanoic acid, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristic acid, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate, etc.

[0066] Examples of the silicone oil include chain polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.); silicone resins forming a three-dimensional network structure, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.); acrylic silicones, etc.

[0067] In addition, various surfactants can be compounded in the personal care composition according to the present invention.

[0068] Examples of the anionic surfactant include fatty acid soaps (e.g., sodium laurate, sodium palmitate, etc.); higher alkyl sulfate ester salts (e.g., sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfate ester salts (e.g., POE-lauryl sulfate triethanolamine, POE-lauryl sulfate sodium, etc.); N-acyl sarcosine (e.g., sodium lauroyl sarcosinate, etc.); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl-N-methyl taurate, sodium coconut fatty acid methyl taurate, sodium lauryl methyl taurate, etc.); phosphate ester salts (POE-oleyl ether sodium phosphate, POE-stearyl ether phosphate, etc.); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, lauryl polypropylene glycol sodium sulfosuccinate, etc.); alkylbenzene sulfonates (e.g., linear sodium dodecylbenzene sulfonate, linear triethanolamine dodecylbenzene sulfonate, linear dodecylbenzene sulfonic acid, etc.); higher fatty acid ester sulfate salts (e.g., hydrogenated coconut fatty acid glycerol sodium sulfate, etc.); N-acyl glutamates (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, monosodium N-myristoyl-L-glutamate, etc.); sulfonated oils (e.g., Turkey red oil, etc.); POE-alkyl ether carboxylic acids; POE-alkyl allyl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfate ester salts; higher fatty acid alkanolamide sulfate ester salts; sodium lauroyl monoethanolamide succinate; N-palmitoyl aspartic acid di(triethanolamine); casein sodium, etc.

[0069] Examples of the cationic surfactant include alkyl trimethyl ammonium salts (e.g., stearyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, etc.); alkyl pyridine Salts (e.g., cetylpyridinium chloride etc.); Distearyldimethylammonium chloride dialkyldimethylammonium salt; Poly(N,N'-dimethyl-3,5-methylenepiperidinium chloride );Alkyl quaternary ammonium salts;Alkyl dimethyl benzyl ammonium salts;Alkyl isoquinoline Salt; Dialkylmorpholine Salt; POE-alkylamine; alkylamine salt; polyamine fatty acid derivative; amyl alcohol fatty acid derivative; benzalkonium chloride; benzethonium chloride, etc.

[0070] Examples of the amphoteric surfactant include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazoline Hydroxide-1-carboxyethoxy 2 sodium salt, etc.); betaine surfactants (for example, 2-heptadecanyl-N-carboxymethyl-N-hydroxyethyl imidazoline betaine, lauryl dimethylaminoacetic acid betaine, alkyl betaine, amide betaine, sulfonate betaine, etc.) and the like.

[0071] Examples of the lipophilic nonionic surfactant include sorbitan fatty acid esters (e.g., sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, sorbitan penta-2-ethylhexyl diglycerol sorbitan ester, tetra-2-ethylhexyl diglycerol sorbitan ester, etc.); glycerol polyglycerol fatty acids (e.g., cottonseed oil fatty acid glyceryl ester, erucic acid monoglyceryl ester, sesquioleic acid glyceryl ester, monostearic acid glyceryl ester, α,α'-oleic acid pyroglutamic acid glyceryl ester, monostearic acid glyceryl malate, etc.); propylene glycol fatty acid esters (e.g., propylene glycol monostearate, etc.); hydrogenated castor oil derivatives; glycerol alkyl ethers, etc.

[0072] Examples of the hydrophilic nonionic surfactant include POE-sorbitan fatty acid esters (e.g., POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.); POE sorbitan fatty acid esters (e.g., POE-sorbitan monolaurate, POE-sorbitan monooleate, POE-sorbitan pentaoleate, POE-sorbitan monostearate, etc.); POE-glycerol Fatty acid esters (e.g., POE-glyceryl monostearate, POE-glyceryl monoisostearate, POE-glyceryl triisostearate, POE-monooleate, etc.); POE-fatty acid esters (e.g., POE-distearate, POE-monodioleate, ethylene glycol distearate, etc.); POE-alkyl ethers (e.g., POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Poloxamer type (e.g., poloxamer, etc.); POE / POP-alkyl ethers (e.g., POE / POP-cetyl ether, POE / POP-2-decyltetradecyl ether, POE / POP-monobutyl ether, POE / POP-hydrogenated lanolin, POE / POP-glycerol ether, etc.); tetra-POE / tetra-POP-ethylenediamine condensates (e.g., tetronic, etc.); POE-castor oil hydrogenated castor oil derivatives (e.g., POE-castor oil, POE-hydrogenated castor oil, POE-hydrogenated castor oil monoisostearate Ester, POE-hydrogenated castor oil triisostearate, POE-hydrogenated castor oil monopyroglutamic acid monoisostearate, POE-hydrogenated castor oil maleic acid, etc.); POE-beeswax / lanolin derivatives (for example, POE-sorbitol beeswax, etc.); alkanolamides (for example, coconut fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE-propylene glycol fatty acid esters; POE-alkylamines; POE-fatty acid amides; sucrose fatty acid esters; alkyl ethoxydimethylamine oxide; trioleyl phosphoric acid, etc.

[0073] As natural water-soluble polymers, for example, plant polymers (for example, gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seeds (quinces), alginate (brown algae extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial polymers (for example, xanthan gum, dextran, succinoglycan, pullulan, etc.); animal polymers (for example, collagen, casein, albumin, gelatin, etc.), etc.

[0074] As the semi-synthetic water-soluble polymer, for example, starch-based polymers (for example, carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); alginic acid-based polymers (for example, sodium alginate, propylene glycol alginate, etc.), etc.

[0075] Examples of synthetic water-soluble polymers include vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymers, etc.); polyoxyethylene polymers (e.g., polyethylene glycol 20,000, 40,000, 60,000, etc.); acrylic polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethylene imine; cationic polymers, etc.

[0076] Examples of the thickener include gum arabic, carrageenan, karaya gum, tragacanth gum, carob bean gum, quince seeds (quinces), casein, dextrin, gelatin, sodium pectate, sodium arachidate, methylcellulose, ethylcellulose, CMC (carboxymethylcellulose), hydroxyethylcellulose, hydroxypropylcellulose, PVA (polyvinyl alcohol), PVM (polyvinyl methyl ether), PVP (polyvinyl pyrrolidone), sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate, xanthan gum, magnesium aluminum silicate, bentonite, hectorite, AlMg silicate (ビーガム), synthetic hectorite, and silicic anhydride.

[0077] Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers (e.g., para-aminobenzoic acid (hereinafter, abbreviated as PABA), PABA monoglyceride, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, N,N-dimethyl PABA ethyl ester, etc.); anthranilic acid-based ultraviolet absorbers (e.g., high salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, salicylic acid Base ester, high salicylic acid Cinnamic acid-based ultraviolet light absorbers (e.g., octyl cinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isopentyl-p-methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenyl cinnamate, 2-ethylhexyl-α-cyano-β-phenyl cinnamate, glyceryl mono-2-ethylhexanoyl-dimethoxycinnamate) benzophenone-based ultraviolet light absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate, 2-hydroxy-4-n-octyloxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.); 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzophenone azole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole; dibenzylazine; anisoylmethane; 4-methoxy-4'-tert-butyldibenzoylmethane; 5-(3,3-dimethyl-2-nitro-norbornyl)-3-pentane-2-one, etc.

[0078] Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutanol, and tert-butanol.

[0079] Examples of the polyol include divalent alcohols (e.g., ethylene glycol, propylene glycol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol, 2-butene-1,4-diol, hexanediol, octanediol, etc.); trivalent alcohols (e.g., glycerol, trimethylolpropane, etc.); tetravalent alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol, etc.); pentavalent alcohols (e.g., xylitol, etc.); hexavalent alcohols (e.g., sorbitol, mannitol, etc.); polyol polymers (e.g., diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, etc.); diol, tetraethylene glycol, diglycerol, polyethylene glycol, triglycerol, tetraglycerol, polyglycerol, etc.); divalent alcohol alkyl ethers (for example, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isopentyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.); divalent alcohol alkyl ethers (for example, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether , diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc.); divalent alcohol ether esters (for example, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diadipic acid ester, ethylene glycol disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monobutyl ether acetate, etc.); Glycerol monoalkyl ethers (e.g., squalane, squalane, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, amylolytic sugar, maltose, xylitol, amylolytic sugar reducing alcohol, etc.); glycerol; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP / POE-butyl ether; tripolyoxypropylene glycerol ether; POP-glycerol ether; POP-glycerol ether phosphoric acid; POP / POE-pentaerythritol ether, polyglycerol, etc.

[0080] Examples of monosaccharides include trisaccharides (e.g., D-glyceraldehyde, dihydroxyacetone, etc.); tetrasaccharides (e.g., D-erythrose, D-erythrulose, D-threose, erythritol, etc.); pentoses (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.); hexoses (e.g., D-glucose, D-talose, D-psicose, D-galactose, D-fructose, L-galactose, L-glycerol, etc.); , D-tagatose, etc.); heptose (e.g., aldoheptose, heptulose, etc.); octose (e.g., octulose, etc.); deoxy sugars (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.); amino sugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.); uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.), etc.

[0081] Examples of the oligosaccharide include sucrose, gentiotriose, umbelliferyl, lactose, plantagose, isolysaccharides, α,α-trehalose, raffinose, lysosaccharides, psoralen, stachyose, and verbascose.

[0082] Examples of amino acids include neutral amino acids (e.g., threonine, cysteine, etc.), basic amino acids (e.g., hydroxylysine, etc.), etc. In addition, examples of amino acid derivatives include sodium acyl sarcosinate (sodium lauroyl sarcosinate), acyl glutamate, sodium acyl β-alanine, glutathione, pyrrolidone carboxylic acid, etc.

[0083] Examples of the organic amine include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol (AMPD), and 2-amino-2-methyl-1-propanol.

[0084] Examples of the alkylene oxide derivatives include POE(9)POP(2) dimethyl ether, POE(14)POP(7) dimethyl ether, POE(10)POP(10) dimethyl ether, POE(6)POP(14) dimethyl ether, POE(15)POP(5) dimethyl ether, POE(25)POP(25) dimethyl ether, POE(7)POP(12) dimethyl ether, POE(22)POP(40) dimethyl ether, POE(35)POP(40) dimethyl ether, POE (50) POP (40) dimethyl ether, POE (55) POP (30) dimethyl ether, POE (30) POP (34) dimethyl ether, POE (25) POP (30) dimethyl ether, POE (27) POP (14) dimethyl ether, POE (55) POP (28) dimethyl ether, POE (36) POP (41) dimethyl ether, POE (7) POP (12) dimethyl ether, POE (17) POP (4) dimethyl ether, etc.

[0085] Examples of the sequestering agent include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium ethylenediaminetetraacetate, trisodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, ethylenediaminetetraacetic acid, and trisodium ethylenediaminehydroxyethyltriacetate.

[0086] Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0087] As other ingredients that can be mixed, for example, preservatives (ethyl paraben, butyl paraben, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); blood circulation promoters (nicotinic acid, benzyl nicotinate, tocopheryl nicotinate, β-butoxy nicotinate, minoxidil or its analogs, vitamin E, γ-oryzanol, alkoxycarbonylpyridine N-oxide, carpronium chloride, and acetylcholine or its derivatives); etc.); various extracts (for example, ginger, phellodendron, coptis root, lithospermum root, birch, loquat, carrot, aloe, mallow, iris, grape, loofah, lily, saffron, chuanxiong, ginger, forsythia suspensa, red onion flower, garlic, pepper, tangerine peel, angelica, peony, seaweed, etc.), activators (for example, panthenol ethyl ether, niacinamide, biotin, pantothenic acid, royal jelly, cholesterol derivatives, etc.); anti-seborrheic agents (for example, pyridoxines, dimethylthianthrene, etc.), etc.

[0088] The dosage form of the personal care composition of the present invention can be arbitrarily selected, but if it is considered from the viewpoint of ease of use by the user, it is preferably in the form of a cream, gel, balm, paste, ointment or spray. In addition, it can be made into a sheet to be attached to the inside of the nose.

[0089] In the case of the form of spraying, aerosols and non-aerosols filled in a dispenser container that does not include a propellant can all be used. For example, aerosols can be pressurized and sealed together with a propellant in a container to make a spray-like aerosol. For aerosol-type materials, usually, they are filled in a spray container together with a propellant. As a propellant, a propellant known in the field of aerosols such as compressed gases such as liquefied gases such as propane, butane, pentane, dimethyl ether, nitrogen, compressed air, etc. can be used arbitrarily.

[0090] Example

[0091] The present invention will be described in more detail below with reference to Examples, but the present invention is not limited thereto. Blending amounts are all expressed in mass % unless otherwise specified.

[0092] (Preparation of spice blend A)

[0093] A blended flavor A was prepared according to the formulation shown in Table 1 below.

[0094] [Table 1]

[0095]

[0096]

[0097] (Compare the production of Spice B)

[0098] Comparative flavor B was prepared according to the formulation shown in Table 2 below.

[0099] [Table 2]

[0100]

[0101] (Preparation of gel base)

[0102] A gel base was prepared according to the formulation shown in Table 3 below.

[0103] [Table 3]

[0104]

[0105]

[0106] (Preparation of malodorous components)

[0107] The concentrations of 2-nonenal and isovaleric acid were adjusted so that three panelists skilled in odor sensory evaluation could each perceive an odor intensity of 3 based on the 6-level odor intensity rating system of the Malodor Prevention Act shown in Table 4. This malodor component was used as a malodor component for confirming the malodor adaptation effect of the gel composition.

[0108] [Table 4]

[0109] strength Degree of odor 5 Strong smell 4 Strong smell 3 Smells that can be easily detected 2 Weak smell that knows what kind of smell it is = cognitive threshold 1 Barely perceptible odor = detection threshold 0 Odorless

[0110] (Sensory evaluation of 2-nonenal)

[0111] A 2 cm square filter paper (ADVANTEC 1034-3-A) impregnated with 20 μl of a 0.005% dilution of 2-nonenal was added to a 500 mL PET beaker, sealed with aluminum foil, and filled with 2-nonenal over 30 minutes. A gel composition was prepared in which the blended fragrance A and 2-nonenal were mixed in a gel base with varying concentrations as shown in Table 5 below. Two panelists skilled in odor sensory evaluation were asked to apply 0.05 g of the prepared gel composition under their noses. After 5 minutes, a hole with a diameter of about 1 cm was opened in the beaker filled with 2-nonenal, and the odor intensity of 2-nonenal was sensory evaluated based on the criteria shown in Table 4 above. In addition, the intensity of 2-nonenal in the gel composition itself was evaluated based on the criteria shown in Table 4 above. The evaluation results are shown in Table 5 together with the prescription. It should be noted that the odor intensity is recorded as the average value of the two panelists.

[0112] [Table 5]

[0113]

[0114] As shown in Table 5, in Examples 1 to 3, the odor intensity of 2-nonenal in the gel composition itself is low, and the harmonization effect is confirmed. If compared with Test Example 1 in which 2-nonenal is not mixed, the odor intensity of 2-nonenal in the beaker is significantly weak, and the odor of 2-nonenal is not easily felt. Therefore, in Examples 1 to 3, the harmonization effect and the adaptation effect are confirmed. On the other hand, if the mixing amount of 2-nonenal is increased, the odor intensity of 2-nonenal in the gel composition itself increases. Although the adaptation effect is confirmed in Test Example 3, the gel composition itself has a strong odor of 2-nonenal and is not harmonized. In addition, in Test Example 2, the odor intensity of 2-nonenal in the gel composition itself is low, and harmonization occurs, but the mixing amount of 2-nonenal is extremely small, so the adaptation effect is not confirmed.

[0115] (Sensory evaluation comparing fragrance B and 2-nonenal alone)

[0116] A 2 cm square filter paper (ADVANTEC 1034-3-A) impregnated with 20 μl of a 0.005% dilution of 2-nonenal was added to a 500 mL PET beaker, sealed with aluminum foil, and filled with 2-nonenal over 30 minutes. A gel composition was prepared in which a comparative fragrance B and 2-nonenal, or only 0.5 ppm of 2-nonenal were mixed in a gel base. Two panelists skilled in odor sensory evaluation applied 0.05 g of the prepared gel composition under their noses, and after 5 minutes, a hole of about 1 cm in diameter was opened in the beaker filled with 2-nonenal, and the odor intensity of 2-nonenal was sensory evaluated based on the above criteria. In addition, the odor intensity of 2-nonenal of the gel composition itself mixed with 2-nonenal was sensory evaluated based on the criteria shown in Table 4 above. The evaluation results are shown in Table 6 together with the prescription. It should be noted that the odor intensity is recorded as the average value of the two panelists.

[0117] [Table 6]

[0118]

[0119] As shown in Table 6, although the odor intensity of 2-nonenal in the beaker was the same and the adaptation effect was confirmed in all cases, the gel composition of Test Example 4 also strongly felt 2-nonenal because the comparative fragrance B was not blended with the malodorous component, even though it was blended at a higher concentration than the blended fragrance A. In addition, the gel composition of Test Example 5, which only blended 2-nonenal, had the same odor intensity of 2-nonenal in the beaker, but the 2-nonenal of the gel composition itself was felt as a very strong odor.

[0120] (Sensory evaluation of isovaleric acid)

[0121] A 2 cm square filter paper (ADVANTEC1034-3-A) impregnated with 20 μl of a 0.03% dilution of isovaleric acid is added to a 500 mL PET beaker, sealed with aluminum foil, and filled with isovaleric acid over 30 minutes. A gel composition is prepared in which the blended fragrance A and isovaleric acid are mixed in a gel base with the concentrations changed as shown in Table 7 below. Two panelists skilled in odor sensory evaluation were asked to apply 0.05 g of the prepared gel composition under the nose. After 5 minutes, a hole with a diameter of about 1 cm was opened in the beaker filled with isovaleric acid, and the odor intensity of isovaleric acid was sensory evaluated based on the criteria shown in Table 4 above. In addition, the intensity of isovaleric acid in the gel composition itself was evaluated based on the criteria shown in Table 4 above. The evaluation results are shown in Table 7 together with the prescription. It should be noted that the odor intensity is recorded as the average value of the two panelists.

[0122] [Table 7]

[0123]

[0124] As shown in Table 7, when compared with Test Example 6 in which isovaleric acid was not blended, the odor intensity of isovaleric acid in the beakers of Examples 4, 5, Test Examples 7, and 8 in which isovaleric acid was blended was significantly weak, and isovaleric acid was not easily felt, and the adaptation effect was confirmed. On the other hand, when the blending amount of isovaleric acid was increased, the odor intensity of isovaleric acid in the gel composition itself increased, and in Test Examples 7 and 8, it was felt as a strong odor and a very strong odor, respectively, and the conditioning effect was not confirmed.

[0125] (pH and viscosity in base)

[0126] The concentration of potassium hydroxide in the base shown in Table 8 was changed as shown in Table 9, and the influence of changing the pH was evaluated. The viscosity is a value measured 1 minute after a sample stored at 30° C. was stored at 10 rpm using a viscometer TVB-10H manufactured by Toki Sangyo Co., Ltd. and a rotor TH6.

[0127] [Table 8]

[0128]

[0129]

[0130] [Table 9]

[0131]

[0132] As shown in Table 9, the viscosity is greatly reduced in the low pH region (Test Example 9) or high pH region (Test Example 15). It is considered that when the base is applied, the viscosity is 10,000 mPa·s or more, thereby further suppressing the dripping of the base. Therefore, the pH of the base when applied can be preferably 4.7 to 12.1, and more preferably in the range of 5 to 12.

Claims

1. A personal care composition comprising at least a malodor component and a fragrance component in an amount greater than the malodor component, wherein the malodor comprising the malodor component is emitted from an object different from a user who uses the personal care composition, The malodorous component is at least one selected from isovaleric acid and 2-nonenal, The aroma component is at least one selected from lavender oil, geranium oil, borneol, 1,8-cineole, thymol, eugenol and cardamom oil, The content of the malodorous component is 0.001ppm to 1ppm, The ratio of the content of the fragrance component to the content of the malodor component is 2,000 to 200,000.

2. The personal care composition according to claim 1, which is in the form of a cream, a gel, a balm, a paste, an ointment or a spray.

3. The personal care composition according to claim 1 or 2, which is used around the nose of the user.

4. A method for suppressing malodor, comprising using the personal care composition according to any one of claims 1 to 3.

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