WO2020241357A1 - Personal care composition and malodor suppression method - Google Patents

Abstract

[Problem] To provide: a personal care composition that can suppress malodors without being restricted to a space; and a malodor suppression method. [Solution] A personal care composition that includes at least a malodorous component and a greater amount of a fragrant component, wherein malodors that include the malodorous component are emitted from objects that are different from a user of the personal care composition. A malodor suppression method in which a user uses the personal care composition.

Description

Personal care compositions and malodor control methods

The present invention relates to a personal care composition and a method for suppressing malodor.

In a society with an increased population density as seen in some cities, bad odors and offensive odors in the living environment are one of the major problems. For example, the main offensive odors generated in the home include the odor of kitchen waste, the odor of pets, the odor of excrement, and the odor of cigarettes. As one of the methods for removing these odors, a method of concealing the odor by using a substance having a strong fragrance as a deodorant and mixing the odor with the odor has been used.

However, when this deodorizing method is adopted, an fragrance that is stronger than the intensity of the malodor is used, so that the overall odor intensity after mixing with the malodor becomes considerably stronger than the intensity of the malodor before mixing. As a result, it often feels uncomfortable. Further, even if the bad odor before mixing can be concealed, the odor after mixing is often felt as another unpleasant odor. As described above, conventional deodorants have not been able to radically improve the unpleasant odor.

Under such circumstances, the applicant can add several kinds of fragrance compositions to a blended fragrance or cosmetic product without disturbing the fragrance of the entire blended fragrance or the entire product, and also has a tobacco odor deodorizing effect even at a low concentration. Based on this finding, we have proposed a tobacco odor deodorant fragrance composition (Patent Document 1). This tobacco odor deodorant fragrance composition is an excellent deodorant having a refreshing citrus scent without the odor after mixing causing a new unpleasant odor.

On the other hand, bad odors are not only caused by external factors such as the living environment as described above, but also internal factors, that is, odors from various parts of the human body, such as sweat odor, bad breath, foot odor, axillary odor, and scalp odor. There is also an aging odor, which is a total odor emitted from the trunk. The odor of aging is qualitatively different from the odors of sweat, axillary odor, foot odor, sweat odor, etc., but the unpleasant odor and the effect on humans are the same as the above-mentioned axillary odor, foot odor, and sweat odor. It is a big one. The applicant has proposed a fragrance composition capable of masking and / or harmonizing this aging odor and capable of eliminating the unpleasant odor of aging (for example, Patent Document 2).

By the way, the above-mentioned bad odor caused by internal factors is exclusively the bad odor of oneself, and is performed on oneself in advance in order to suppress the bad odor, and is not a protective method against the bad odor caused by internal factors generated by others. .. In addition, the method of preventing bad odors caused by external factors is often ex post facto, except when masking with an air freshener or the like in advance.

As mentioned above, it is possible to use air fresheners and deodorants to control and prevent bad odors, but there are limits. From this point of view, Patent Document 3 proposes a malodor suppressant containing an antagonist against OR51E1 as an active ingredient. OR51E1 is an olfactory receptor that specifically recognizes malodors in humans, and according to the above malodor suppressors, in addition to valeric acid and isovaleric acid, various malodors such as n-butyric acid and caproic acid can be produced. It is stated that it can be suppressed by the antagonistic action on OR51E1 to which the odorant is bound.

JP-A-2002-275495 Japanese Unexamined Patent Publication No. 11-286428 JP-A-2018-121865

The malodor suppressant of Patent Document 3 utilizes a receptor block (adaptation) for the olfactory receptor of OR51E1, and more specifically, n-butyric acid, caproic acid, or the like accepts malodors such as valeric acid and isovaleric acid. It suppresses by acting on the body. The malodor suppressant of Patent Document 3 suppresses malodor in a predetermined space in which the malodor suppressant is present, without removing the odor substance by adsorption or the like, or masking with another fragrance agent or the like. It is possible to realize a comfortable odor environment, but when the space is separated from the predetermined space, that is, in the space where the odor suppressant does not exist, the odor cannot be suppressed as a matter of course.

The present invention is completely different from conventional air fresheners, deodorants, or malodor suppressants, that is, it is based on the idea of reversal, and is a personal care composition capable of suppressing malodor without being restricted by space. It is an object of the present invention to provide a thing and a method for suppressing a bad odor.

The personal care composition of the present invention is a personal care composition containing at least an malodorous component and an aroma component having a content higher than this malodorous component, and the malodor containing the malodorous component uses the personal care composition. It is emitted from an object different from the user.

The ratio of the content of the malodorous component to the content of the aroma component (content of the aroma component / content of the malodorous component) is preferably 2000 to 200,000.

The malodor containing a malodor component is preferably at least one selected from sweat odor, aging odor, tobacco odor, halitosis and foot odor.

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

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

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

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

The malodorous component is at least one selected from isovaleric acid, butyric acid, acetic acid, 2-nonenal (= trans-2-nonenal, simply referred to as 2-nonenal in the present specification), 2-octenal and guaiacol. Is preferable.

The aroma component is preferably at least one selected from lavender oil, geranium oil, borneol, 1,8-cineole, thymol, eugenol and cardamom oil.

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

The personal care composition of the present invention is preferably used around the user's nose.

The malodor suppression method of the present invention uses the personal care composition of the present invention.

In the method for suppressing malodor of the present invention, the user uses a personal care composition containing a malodor component and an aroma component having a content higher than that of the malodor component, so that the user does not easily feel the malodor emitted from other than the user. It is something to do.

It is preferable that the offensive odor other than the user is at least one selected from sweat odor, aging odor, tobacco odor, halitosis and foot odor.

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

The personal care composition of the present invention is a personal care composition containing at least an malodorous component and an aroma component having a content higher than this malodorous component, and the malodor containing the malodorous component uses the personal care composition. Since it is emitted from an object different from the user, the user to whom this is applied is not restricted to the space, and it is possible to make it difficult to feel the bad odor emitted from the object different from the user. Further, since the method for suppressing malodor of the present invention uses the personal care composition of the present invention, the user is not restricted to the space, and it is possible to make it difficult for the user to perceive the malodor emitted from an object different from the user. It becomes.

Hereinafter, the present invention will be described in detail.
The personal care composition of the present invention is a personal care composition containing at least an malodorous component and an aroma component having a content higher than this malodorous component, and the malodor containing the malodorous component uses the personal care composition. It is emitted from an object different from the user.

(Odor component)
The malodorous component contained in the personal care composition of the present invention is contained in the malodor emitted from a subject different from the user. Here, different targets include people other than users, pet animals such as dogs and cats, organisms such as livestock, and various organic substances that generate odors such as cigarettes, kitchen waste, waste, and excrement. Be done. In particular, as the malodor containing a malodor component, at least one selected from sweat odor, aging odor, tobacco odor, halitosis and foot odor can be mentioned.

In particular, the malodorous component can be represented by the above general formulas (I), (II) or (III).
R ¹ of the general formula (I) represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and examples of the alkyl group having 1 to 4 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an isopropyl group and n. -Butyl group, isobutyl group and t-butyl group are mentioned, and among them, hydrogen atom, ethyl group and isopropyl group are more preferable.
R ² of the general formula (II) represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and is a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, or a t-butyl group. , N-Pentyl group, 1-methylbutyl group and the like, and among them, the n-Pentyl group is more preferable.
R ³ of the general formula (III) represents a hydrogen atom or an alkyl group having 1 or 2 carbon atoms, and a hydrogen atom is more preferable.
In particular, the malodorous component is preferably at least one selected from isovaleric acid, butyric acid, acetic acid, 2-nonenal, 2-octenal and guaiacol.

(Aroma component)
The aroma component is a component that harmonizes with a malodorous component, and can be widely selected from organic chemical substances having aroma such as animal-based, plant-based, mineral-based natural fragrances and synthetic fragrances. Specifically, as natural fragrances, for example, geranium oil, lavender oil, cardamon oil, anis oil, basil oil, bergamot oil, boadrose oil, cananga oil, cedarwood oil, chamomile oil, cinnamon oil, clove oil, elemi oil. , Eucalyptus oil, grapefruit oil, hinoki oil, jasmine oil, laurel oil, labandine oil, lime oil, mandarin oil, citrus oil, majorum oil, peppermint oil, sparemint oil, orange oil, patchouli oil, pepper oil, neroli oil, rose Examples include oil, rosemary oil, sage oil, peppermint oil, sandalwood oil, taget oil, valerian oil, vetiver oil, ylang ylang oil, yuzu oil, etc., and synthetic fragrances include, for example, borneol and 1,8-cineole. , Timor, Eugenol, Limonen, β-cariophyllene, cis-3-hexenol, farnesol, β-phenylethyl alcohol, citral, lylar, lilial, L-carboxylic, iron, cyclopentadecanone, benzylbenzoate, roseoxide, menthol, Examples thereof include, but are not limited to, benzyl acetate and jasmine lactone. The fragrance may be used alone or in combination of two or more.

The personal care composition contains a malodorous component and an aroma component having a content higher than this malodorous component, and as described above, since the aroma component is a component that harmonizes with the malodorous component, the personal care composition itself has a malodor. It contains a malodorous component that harmonizes the component and the aroma component and exerts an adaptation effect. Here, harmonizing means that the malodorous component is in harmony with the aroma component and is in a state where it does not feel unpleasant. More specifically, the malodor prevention method 6-step odor shown in the following examples. It means a state in which the odor intensity based on the intensity display method is 2 or less. In addition, adaptation means that the malodorous component is taken up by the olfactory receptors in the olfactory cells, and as a result, the malodor is less likely to be perceived. It means that the odor is less likely to be felt when the odor intensity based on the odor prevention method 6-step odor intensity display method shown in the following examples is 0.5 steps or more on average from the case where there is no personal care composition (when only the odor is present). It means to decrease.

The personal care composition contains a malodorous component and an aroma component. The ratio of the content of the malodorous component to the content of the malodorous component (content of the malodorous component / content of the malodorous component) may be 2000 to 20000, although it depends on the type and combination of the malodorous component and the aroma component. It is preferably 2000 to 20000. When the ratio of the content of the malodorous component to the content of the aroma component is 2000 or more, a more harmony effect can be obtained, and when it is 200,000 or less, a more adaptation effect can be obtained.

The content of the malodorous component with respect to the total amount of the personal care composition depends on the type and combination of the malodorous component and the aroma component, the form of the personal care composition, etc., but is preferably 0.001 to 1 ppm, preferably 0.003. It is preferably about 0.8 ppm, and more preferably 0.005 to 0.5 ppm. When the content of the malodorous component is 0.001 ppm or more, the adaptation effect can be obtained, and when it is 1 ppm or less, a more harmony effect can be obtained.

The content of the aroma component with respect to the total amount of the personal care composition depends on the type and combination of the malodorous component and the aroma component, the form of the personal care composition, etc., but is preferably 0.01 to 10% by mass, and is 0. It is preferably 1 to 5% by mass, and more preferably 0.6 to 4% by mass. When the content of the aroma component is 0.01% by mass or more, a more harmony effect can be obtained, and when it is 10% by mass or less, an aroma having an appropriate concentration can be obtained.

The personal care composition of the present invention contains an malodorous component and an aroma component having a content higher than this malodorous component, and the personal care composition is a harmony between the malodorous component and the aroma component. From itself, it is possible to make it difficult to feel a foul odor. Therefore, the user can comfortably apply the personal care composition, and it is possible to suppress the malodor emitted from an object different from the user without being restricted by the space.

In particular, when the malodorous component is represented by the above general formula (I), (II) or (III), the malodorous component is isovaleric acid, butyric acid, acetic acid, 2-nonenal, 2-nonenal. At least one selected from octenal and guaiacol, when the aroma component is at least one selected from lavender oil, geranium oil, borneol, 1,8-cineol, thymol, eugenol and cardamon oil. Can exert a more harmony effect.

Here, the action of the personal care composition of the present invention will be described in more detail. When the personal care composition of the present invention enters the user's nose, the malodorous component contained in the personal care composition is taken up by the olfactory receptors in the olfactory cells. In the case of only the malodorous component, the user senses the malodor, but since the aroma component is a component that harmonizes with the malodor component in the personal care composition, the malodor component is not detected, and even if the malodor component is taken in, the malodor component is not detected. It is hard to feel as an ingredient. On the other hand, as a result of the olfactory receptors in the olfactory cells incorporating the malodorous components contained in the personal care composition, the olfactory cells adapt to the malodorous components, making it difficult to feel the malodor emitted from a target different from the user. Become. As described above, since the personal care composition of the present invention has a harmony effect and an adaptation effect, it is possible to apply it to oneself and make it difficult to perceive a foul odor emitted from an object different from oneself.

As described above, the personal care composition of the present invention acts on the user's olfactory cells, so it is preferable to use it around the user's nose. Specifically, it may be used as a mask or the like and indirectly around the nose as well as under the nose, above the nose, around the nose, inside the nose, and the like.

In addition to the above-mentioned malodorous component and aroma component, the personal care composition of the present invention may contain components usually used for external skin preparations for cosmetics and quasi-drugs as long as the effects of the present invention are not affected. , Manufactured according to conventional methods. Specific compoundable ingredients are listed below. In the following, EO is an abbreviation for ethylene oxide, PO is an abbreviation for propylene oxide, POE is an abbreviation for polyoxyethylene, and POP is an abbreviation for polyoxypropylene.

Moisturizers include, for example, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, martitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, sodium lactate, bile salt, etc. Examples thereof include dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO) PO adduct, Izayoi rose extract, Xylitol extract, and melilot extract.

Examples of the powder component include inorganic powders (for example, talc, kaolin, mica, silk mica (serisite), white mica, gold mica, synthetic mica, red mica, black mica, permiculite, magnesium carbonate, calcium carbonate, silicic acid. Aluminum, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungate, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (baked sekko), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder , Metal soap (eg zinc myristate, calcium palmitate, aluminum stearate), boron nitride, etc.; Organic powder (eg polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene And acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluorinated ethylene powder, cellulose powder, etc.); Inorganic white pigment (eg, zinc oxide, etc.); Inorganic red pigment (eg, iron titanate, etc.); Inorganic purple pigments (eg, mango violet, cobalt violet, etc.); Inorganic green pigments (eg, chromium oxide, chromium hydroxide, cobalt titanate, etc.); Inorganic blue pigments (eg, ultramarine, dark blue, etc.); Pearl pigments (For example, 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 (eg, aluminum powder, copper powder, etc.); , Organic pigments such as barium or aluminum lake (eg, Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204. Organic pigments such as No., 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, Blue No. 1, etc.); Natural pigments (for example, chlorophyll, β-carotene, etc.) and the like.

Liquid fats and oils include, for example, avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, southern ka oil, castor oil, flaxseed oil. , Saflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese millet oil, jojoba oil, germ oil, triglycerin and the like.

Examples of solid fats and oils include cacao fat, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, sheep fat, hardened beef tallow, palm kernel oil, lard, beef tallow, mokuro kernel oil, hardened oil, and cow. Examples include leg tallow, mokuro, and hydrogenated coconut oil.

Examples of waxes include honeybee, candelilla wax, cotton wax, carnauba wax, babyry wax, ibotarou, whale wax, montan wax, lanolin, lanolin, capoc wax, lanolin acetate, liquid lanolin, sugar cane, lanolin fatty acid isopropyl, hexyl laurate, and the like. Examples thereof include reduced lanolin, jojobaro, hard lanolin, cellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether and the like.

Examples of the hydrocarbon oil include liquid paraffin, ozokelite, pristane, paraffin, selecin, squalene, petrolatum, microcrystalline wax and the like.
Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylene acid, tollic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid ( DHA) and the like.

Higher alcohols include, for example, linear alcohols (eg, lauryl alcohols, cetyl alcohols, stearyl alcohols, behenyl alcohols, myristyl alcohols, oleyl alcohols, cetostearyl alcohols, etc.); branched alcohols (eg, monostearyl glycerin ethers (bacyl alcohols)). ), 2-Deciltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.) and the like.

Synthetic ester oils 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-alkylglycol monoisostearate, Neopentyl glycol dicaprate, Apple Diisostearyl Acid, Glycerin Di-2-Heptylundecanoate, Trimethylol Propane Tri-2-ethylhexanoate, Trimethylol Propane Triisostearate, Pentaerythritol Tetra-2-ethylhexanoate, Glycerin Tri-2-ethylhexanoate , Trioctanoate glycerin, triisopalmitate glycerin, triisostearate trimethylolpropane, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl Ester, oleyl oleate, acetoglyceride, 2-heptyl undecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptyl undecyl adipate, ethyl laurate, sebacine Examples thereof include di-2-ethylhexyl acid, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate and triethyl citrate.

Examples of the silicone oil include chain polysiloxane (eg, dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.); cyclic polysiloxane (eg, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexane). (Sasiloxane, etc.)) Silicone resin, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.) forming a three-dimensional network structure, acrylic silicone Kind and the like.

Further, various surfactants may be blended in the personal care composition according to the present invention.
Examples of the anionic surfactant include fatty acid sulphates (eg, sodium laurate, sodium palmitate, etc.); higher alkyl sulfates (eg, sodium lauryl sulfate, potassium lauryl sulfate, etc.); alkyl ether sulfates (eg, sodium lauryl sulfate, etc.). POE-sodium lauryl sulfate triethanolamine, POE-sodium lauryl sulfate, etc.); N-acylsarcosic acid (eg, sodium lauroyl sarcosin, etc.); higher fatty acid amide sulfonate (eg, N-myristoyl-N-methyltaurine sodium, palm) Oil fatty acid methyl taurid sodium, lauryl methyl taurid sodium, etc.); Phosphate ester salts (POE-oleyl ether phosphate sodium, POE-stearyl ether phosphoric acid, etc.); Sulfonic acid salts (for example, di-2-ethylhexyl sulfosuccinic acid) Sodium, monolauroyl monoethanolamide polyoxyethylene sulfosuccinate sodium, sodium lauryl polypropylene glycol sulfosuccinate, etc.); alkylbenzene sulfonates (eg, sodium linadodecylbenzene sulfonate, triethanolamine linadodecylbenzene sulfonate, linadodecylbenzene sulfonate) Acids, etc.); Higher fatty acid ester sulfate ester salts (eg, hardened coconut oil fatty acid sodium glycerin sulfate, etc.); N-acylglutamate (eg, monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, N-myristoyl-L) -Sulfated oil (eg, funnel oil, etc.); POE-alkyl ether carboxylic acid; POE-alkylallyl ether sulfonate; α-olefin sulfonate; higher fatty acid ester sulfonate; secondary Alcohol sulfate ester salt; higher fatty acid alkylolamide sulfate ester salt; sodium lauroyl monoethanolamide succinate; N-palmitoyl aspartate ditriethanolamine; sodium caseinate and the like.

Examples of the cationic surfactant include alkyltrimethylammonium salts (eg, stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, etc.); alkylpyridinium salts (eg, cetylpyridinium chloride, etc.); distearyldimethylammonium chloride dialkyldimethylammonium salts; Polychloride (N, N'-dimethyl-3,5-methylenepiperidinium); alkyl quaternary ammonium salt; alkyldimethylbenzylammonium salt; alkylisoquinolinium salt; dialkylmoriphonium salt; POE-alkylamine; Alkylamine salts; polyamine fatty acid derivatives; ammonium alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride and the like.

Examples of the amphoteric surfactant include imidazoline-based amphoteric surfactants (for example, 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazolin sodium, 2-cocoyl-2-imidazolinium hydroki. Side-1-carboxyethyroxy disodium salt, etc.); Betaine-based surfactants (eg, 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine) , Sulfobetaine, etc.) and the like.

Examples of the lipophilic nonionic surfactant include sorbitan fatty acid esters (for example, sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, etc. Sorbitane trioleate, penta-2-ethylhexylate diglycerol sorbitan, tetra-2-ethylhexylate diglycerol sorbitan, etc.; Glycerin acid, α, α'-glycerin pyroglutamate oleate, glycerin maloic acid, etc.); propylene glycol fatty acid esters (eg, propylene glycol monostearate, etc.); cured castor oil derivative; glycerin alkyl ether, etc. Be done.

Examples of the hydrophilic nonionic surfactant include POE-sorbitan fatty acid esters (for example, POE-sorbitan monooleate, POE-sorbitan monostearate, POE-sorbitan monooleate, POE-sorbitan tetraoleate, etc.). POE sorbit fatty acid esters (eg, POE-sorbit monolaurate, POE-sorbit monooleate, POE-sorbit pentaoleate, POE-sorbit monostearate, etc.); POE-glycerin fatty acid esters (eg, POE- Glycerin monostearate, POE-glycerin monoisostearate, POE-monooleate such as POE-glycerin triisostearate, etc.); POE-fatty acid esters (eg, POE-distearate, POE-monodiolate, ethylene glycol distearate, etc.) POE-alkyl ethers (eg, POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-cholestanol ether, etc.); Pluronic types (eg, , Pluronic, etc.); POE / POP-alkyl ethers (eg, POE / POP-cetyl ether, POE / POP-2-decyltetradecyl ether, POE / POP-monobutyl ether, POE / POP-hydrous lanolin, POE / POP-glycerin ether, etc.); Tetra POE / Tetra POP-ethylenediamine condensates (eg, Tetronic, etc.); POE-Himasi oil hardened castor oil derivative (eg, POE-Himasi oil, POE-hardened castor oil, POE-cured) Sunflower oil monoisostearate, POE-hardened bean oil triisostearate, POE-hardened bean oil monopyroglutamic acid monoisostearic acid diester, POE-hardened bean oil maleic acid, etc.); POE-mituro lanolin derivative (eg, POE) -Sorbit Mitsurou, etc.); Arcanolamide (eg, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, etc.); POE-propylene glycol fatty acid ester; POE-alkylamine; POE-fatty acid amide; sucrose fatty acid ester ; Alkylethoxydimethylamine oxide; Trioleyl phosphate and the like.

Natural water-soluble polymers include, for example, plant-based polymers (eg, arabic gum, tragacanth gum, galactan, guagam, carob gum, karaya gum, carrageenan, pectin, canten, quince seed (malmero), algae colloid (cassaw extract), starch. (Rice, corn, potato, wheat), glycyrrhizinic acid); Micromolecular macromolecules (eg, xanthan gum, dextran, succinoglucan, burran, etc.); Animal macromolecules (eg, collagen, casein, albumin, gelatin, etc.), etc. Can be mentioned.

Examples of the semi-synthetic water-soluble polymer include starch-based polymers (for example, carboxymethyl starch, methyl hydroxypropyl starch, etc.); cellulosic polymers (methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, etc.). , Hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); Alginic acid-based polymers (for example, sodium alginate, propylene glycol alginate, etc.) and the like.

Examples of the synthetic water-soluble polymer include vinyl-based polymers (for example, polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene-based polymers (for example, polyethylene glycol 20,000, 40). , 000, 60,000, etc.); Acrylic polymers (eg, sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); Polyethyleneimine; Cationic polymers and the like.

Examples of thickeners include arabic gum, carrageenan, carrageenan, tragacanto gum, carob gum, quince seed (malmero), casein, dextrin, gelatin, sodium pectinate, sodium aragite, methyl cellulose, ethyl cellulose, CMC (carboxymethyl cellulose), and hydroxy. Ethyl cellulose, hydroxypropyl cellulose, PVA (polyvinyl alcohol), PVM (polyvinyl methyl ether), PVP (polypolypyrrolidone), sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guagam, tamarint gum, dialkyldimethylammonium sulfate cellulose, xanthan gum, Examples thereof include aluminum magnesium silicate, bentonite, hectrite, A1Mg silicate (beagum), laponite, silicic anhydride and the like.

Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers (for example, paraaminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N, N-dipropoxy PABA ethyl ester, N, N-diethoxyPABA ethyl ester). , N, N-dimethyl PABA ethyl ester, N, N-dimethyl PABA butyl ester, N, N-dimethyl PABA ethyl ester, etc.); Anthranic acid-based ultraviolet absorber (for example, homomentyl-N-acetylanthranilate, etc.); Salicylic acid-based UV absorbers (eg, amyl salicylate, menthyl salicylate, homomentyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, etc.); 4-Isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxy cinnamate, isopropyl-p-methoxy cinnamate Mates, isoamyl-p-methoxysinamates, octyl-p-methoxysinamates (2-ethylhexyl-p-methoxysinamates), 2-ethoxyethyl-p-methoxysinamates, cyclohexyl-p-methoxysinamates, ethyl- α-Cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glycerylmono-2-ethylhexanoyl-diparamethoxycinnamate, etc.); benzophenone-based ultraviolet absorbers (eg, 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-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.); 3- (4'-methylbenzylidene) -d, l-camper, 3-ben Dilidene-d, l-Phenyl; 2-phenyl-5-methylbenzotriazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2- (2'-hydroxy-5'-t-octylphenyl) benzo Triazole; 2- (2'-hydroxy-5'-methylphenylbenzotriazole; dibenzalazine; dianisoilmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5- (3,3-dimethyl-2-norbornylidene) ) -3-Pentan-2-on and the like.

Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.

Examples of the polyhydric alcohol include divalent alcohols (eg, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, and the like. Pentamethylene glycol, 2-butene-1,4-diol, hexylene glycol, octylene glycol, etc.; trivalent alcohol (eg, glycerin, trimethylolpropane, etc.); tetravalent alcohol (eg, 1,2,6) -Pentaerythritol such as hexanetriol); pentavalent alcohol (eg, xylitol, etc.); hexavalent alcohol (eg, sorbitol, mannitol, etc.); polyhydric alcohol polymer (eg, diethylene glycol, dipropylene glycol, triethylene glycol, etc.) Polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.; divalent alcohol alkyl ethers (eg, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, Ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc. ); Dihydric alcohol alkyl ethers (eg, 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 Cole butyl ether, etc.); Dihydric alcohol ether esters (eg, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diazibate, ethylene glycol dissuccinate) , Diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc.; glycerin monoalkyl ether (eg, xyl alcohol) , Ceraquil alcohol, bacil alcohol, etc.); Sugar alcohols (eg, sorbitol, martitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch-degrading sugar, maltose, xylitol, starch-degrading sugar-reducing alcohol, etc.) Glysolid; Tetrahydrofurfuryl alcohol; POE-Tetrahydrofurfuryl alcohol; POP-butyl ether; POP / POE-butyl ether; Tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphoric acid; POP / POE- Examples thereof include pentan erythritol ether and polyglycerin.

Examples of the simple sugar include tricarbose (eg, D-glycerylaldehyde, dihydroxyacetone, etc.); tetracarbose (eg, D-erythulose, D-elittlerose, D-treose, erythritol, etc.); , L-arabinose, D-xylulose, L-lyxose, D-arabinose, D-ribose, D-libulose, D-xylulose, L-xylulose, etc.; Hexalactoses (eg, D-glucose, D-talose, D) -Bushicose, D-galactose, D-fructose, L-galactose, L-mannose, D-tagatose, etc.); Seven-carbon sugar (eg, aldoheptose, heprose, etc.); Eight-carbon sugar (eg, octulose, etc.); For example, 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.; amino sugars (eg, D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.) ); Uronic acid (for example, D-glucuronic acid, D-mannuronic acid, L-glulonic acid, D-galacturonic acid, L-isulonic acid, etc.) and the like.

Examples of oligosaccharides include sucrose, gunthianose, umbelliferose, lactose, planteos, isolikunoses, α, α-trehalose, raffinose, lycnoses, umbilicin, stachyose velvas and the like.
Examples of amino acids include neutral amino acids (eg, threonine, cysteine, etc.); basic amino acids (eg, hydroxylysine, etc.) and the like. In addition, examples of the amino acid derivative include acyl sarcosine sodium (lauroyl sarcosine sodium), acyl glutamate, acyl β-alanine sodium, glutathione, pyrrolidone carboxylic acid and the like.

Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol (AMPD), and 2-amino-2-methyl-1. -Propanol etc. can be mentioned.

Examples of the alkylene oxide derivative 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, and 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 and the like can be mentioned.

Examples of the metal ion sequestering agent include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, disodium edetate, trisodium edetate, and tetrasodium edetate. , Sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, trisodium ethylenediaminehydroxyethyl triacetate and the like.

Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid and the like.

Other compoundable ingredients include, for example, preservatives (ethylparaben, butylparaben, etc.); whitening agents (eg, placenta extract, yukinoshita extract, arbutin, etc.); blood circulation promoters (nicotinic acid, benzyl nicotinate, nicotin, etc.) Acid tocopherol, nicotinic acid β-butoxyester, minoxidil or its relatives, vitamin Es, γ-oryzanol, alkoxycarbonylpyridine N-oxide, carpronium chloride, and acetylcholine or derivatives thereof, etc.; various extracts (eg, ginger, Ubaku, Ouren, Shikon, Birch, Biwa, Carrot, Aloe, Zeniaoi, Iris, Grape, Hechima, Yuri, Saffron, Senkyu, Shokyu, Otogirisou, Ononis, Garlic, Togarashi, Chinpi, Touki, Button, Seaweed, etc.) Agents (eg, pantenyl ethyl ether, nicotinamide, biotin, pantothenic acid, royal jelly, cholesterol derivatives, etc.); antilipolytic agents (eg, pyridoxines, thiantoll, etc.) and the like.

The dosage form of the personal care composition of the present invention can be arbitrarily selected, but from the viewpoint of ease of use for the user, it may be in the form of cream, gel, balm, paste, ointment or spray. preferable. Alternatively, it may be in the form of a sheet that is attached to the inside of the nose.

In the case of the spray form, either an aerosol or a non-aerosol filled in a dispenser container containing no propellant can be applied. For example, it can be pressure-sealed together with a propellant into a container to form a spray-like aerosol. In the aerosol type, the spray container is usually filled with the propellant. As the propellant, a propellant known in the field of aerosol, such as a liquefied gas such as propane, butane, pentane, and dimethyl ether, and a compressed gas such as nitrogen and compressed air, can be arbitrarily used.

The present invention will be described in more detail with reference to examples below, but the present invention is not limited thereto. Unless otherwise specified, all blending amounts are mass%.

(Making Harmonage Fragrance A)
Harmonage fragrance A was prepared according to the formulation shown in Table 1 below.

(Preparation of comparative fragrance B)
Comparative fragrance B was prepared according to the formulation shown in Table 2 below.

(Preparation of gel base)
A gel base was prepared according to the formulation shown in Table 3 below.

(Preparation of malodorous components)
For 3 panels skilled in odor sensory evaluation, 2-nonenal and isovaleric acid can be perceived for each panel with odor intensity 3 based on the 6-step odor intensity display method of the malodor prevention method shown in Table 4 below. The concentration was adjusted. This malodorous component was used as a malodorous component to confirm the malodor adaptation effect of the gel composition.

(2-Sensory evaluation of nonenal)
Put 20 μl of 2-nonenal 0.005% diluted 2 cm square filter paper (ADVANTEC 1034-3-A) in a 500 mL pet beaker, seal with aluminum foil, and fill with 2-nonenal over 30 minutes. It was. A gel composition was prepared in which Harmonage Fragrance A and 2-Nonenal were blended with the gel base at varying concentrations as shown in Table 5 below. 0.05 g of the prepared gel composition was applied under the nose to two panels skilled in odor sensory evaluation. After 5 minutes, a hole having a diameter of about 1 cm was formed in the beaker filled with 2-nonenal, and the sensory evaluation of 2-nonenal odor intensity was performed according to the criteria shown in Table 4 above. In addition, the strength of 2-nonenal of the gel composition itself was evaluated based on the criteria shown in Table 4 above. Table 5 shows the evaluation results together with the prescription. The odor intensity was described as the average value of the two panels.

As shown in Table 5, in Examples 1 to 3, the gel composition itself had a low 2-nonenal odor intensity and a harmony effect was observed, and compared with Test Example 1 in which 2-nonenal was not blended, it was in the beaker. It was found that the intensity of 2-nonenal odor was clearly weak, making it difficult to feel the odor of 2-nonenal. From this, the harmony effect and the adaptation effect were recognized in Examples 1 to 3. On the other hand, when the amount of 2-nonenal blended increased, the 2-nonenal odor intensity of the gel composition itself increased, and although the adaptation effect was observed in Test Example 3, the gel composition itself had a strong odor of 2-nonenal. Yes, it wasn't harmonized. Further, in Test Example 2, the gel composition itself had a low 2-nonenal odor intensity and was harmonized, but the adaptation effect was not observed because the amount of 2-nonenal was extremely small.

(Sensory evaluation of comparative fragrance B and 2-nonenal only)
A 2 cm square filter paper (ADVANTEC 1034-3-A) impregnated with 20 μl of 2-nonenal 0.005% diluted product was placed in a 500 mL pet beaker, sealed with aluminum foil, and filled with 2-nonenal over 30 minutes. .. A gel composition was prepared in which 0.5 ppm of comparative fragrance B, 2-nonenal, and 2-nonenal alone were added to the gel base. For two panels skilled in odor sensory evaluation, apply 0.05 g of the prepared gel composition under the nose, and after 5 minutes, make a hole with a diameter of about 1 cm in the beaker filled with 2-nonenal. -Nonenal odor intensity was sensory evaluated according to the above criteria. In addition, the 2-nonenal odor intensity of the gel composition itself containing 2-nonenal was sensory-evaluated according to the criteria shown in Table 4 above. Table 6 shows the evaluation results together with the prescription. The odor intensity is described as an average value of two panelists.

As shown in Table 6, the 2-nonenal odor intensity in the beaker was the same, and the adaptation effect was observed in all cases, but despite the fact that it was blended at a higher concentration than the harmonage fragrance A. In the gel composition of Test Example 4, 2-nonenal was strongly felt because the comparative fragrance B did not harmonize with the malodorous component. Further, the gel composition of Test Example 5 containing only 2-nonenal had the same 2-nonenal odor intensity in the beaker, but 2-nonenal of the gel composition itself was felt as a very strong odor.

(Sensory evaluation for isovaleric acid)
Put 20 μl of 2 cm square filter paper (ADVANTEC 1034-3-A) impregnated with 0.03% isovaleric acid in a 500 mL pet beaker, seal with aluminum foil, and fill with isovaleric acid for 30 minutes. It was. A gel composition was prepared in which Harmonage Fragrance A and Isovaleric Acid were blended with the gel base at varying concentrations as shown in Table 7 below. 0.05 g of the prepared gel composition was applied under the nose to two panels skilled in odor sensory evaluation. After 5 minutes, a beaker filled with isovaleric acid was perforated with a diameter of about 1 cm, and the isovaleric acid odor intensity was sensory evaluated according to the criteria shown in Table 4 above. In addition, the strength 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. The odor intensity was described as the average value of the two panels.

As shown in Table 7, the odor intensity of isovaleric acid in the beakers of Examples 4, 5, and Test Examples 7 and 8 containing isovaleric acid is compared with that of Test Example 6 not containing isovaleric acid. Was clearly weak, and it was found that isovaleric acid was less likely to be felt, and an adaptation effect was observed. On the other hand, as the blending amount of isovaleric acid increases, the isovaleric acid odor intensity of the gel composition itself increases, and in Test Examples 7 and 8, they are perceived as a strong odor and a very strong odor, respectively, and a harmony effect is recognized. There wasn't.

(PH and viscosity in base)
In the bases shown in Table 8 below, the concentration of caustic potash was changed as shown in Table 9 below, and the effect of changing the pH was evaluated. The viscosity is a value after 1 minute when a sample stored at 30 ° C. was measured at a rotation speed of 10 rpm using a viscometer TVB-10H and a rotor TH6 manufactured by Toki Sangyo Co., Ltd.

As shown in Table 9, the viscosity was significantly reduced in the low pH region (Test Example 9) or the high pH region (Test Example 15). When this base is applied, it is considered that the dripping of the base can be further suppressed by setting the viscosity to 10,000 mPa · s or more. Therefore, the pH of the base material in the case of application is preferably 4.7 to 12.1 and more preferably in the range of 5 to 12.

Claims (9)

1. From a personal care composition containing at least an malodorous component and an aroma component having a content higher than that of the malodorous component, and the malodor containing the malodorous component is different from that of a user who uses the personal care composition. A personal care composition that is emitted.
2. The personal care composition according to claim 1, wherein the ratio of the content of the malodorous component to the content of the aroma component is 2000 to 200,000.
3. The personal care composition according to claim 1 or 2, wherein the malodor containing the malodor component is at least one selected from sweat odor, aging odor, tobacco odor, halitosis and foot odor.
4. The personal care composition according to any one of claims 1 to 3, wherein the malodorous component is represented by the following general formula (I), (II) or (III).
   

   

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

   

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

   

   (R ³ represents a hydrogen atom or an alkyl group having 1 or 2 carbon atoms.)
5. The personal care composition according to claim 4, wherein the malodorous component is at least one selected from isovaleric acid, butyric acid, acetic acid, 2-nonenal, 2-octenal and guaiacol.
6. The personal care composition according to any one of claims 1 to 5, wherein the aroma component is at least one selected from lavender oil, geranium oil, borneol, 1,8-cineole, thymol, eugenol and cardamom oil.
7. The personal care composition according to any one of claims 1 to 6, which is in the form of cream, gel, balm, paste, ointment or spray.
8. The personal care composition according to any one of claims 1 to 7, which is used around the nose of the user.
9. A method for suppressing malodor using the personal care composition according to any one of claims 1 to 8.