WO2023079982A1

WO2023079982A1 - Sunscreen cosmetic

Info

Publication number: WO2023079982A1
Application number: PCT/JP2022/039274
Authority: WO
Inventors: 柚里幸島; 祐子鈴木; 美月志賀
Original assignee: 株式会社資生堂
Priority date: 2021-11-05
Filing date: 2022-10-21
Publication date: 2023-05-11

Abstract

Provided is a sunscreen cosmetic having an improved specific sunscreen odor generated when a hexyl diethylaminohydroxybenzoyl benzoate of an ultraviolet absorber is used in combination with an ultraviolet scattering agent.　The sunscreen cosmetic of the present disclosure contains a a specific perfume in addition to hexyl diethylaminohydroxybenzoyl benzoate, an ultraviolet scattering agent and a polar oil.

Description

sunscreen cosmetics

This disclosure relates to sunscreen cosmetics.

In the field of cosmetics, various compositions exhibiting sunscreen properties and cosmetics using such compositions have been developed.

In Patent Document 1, 0.5 to 30% by weight of a perfume component, 0.1 to 20% by weight of an emulsifier, 50 to 99% by weight of water, 0.001 to 10% by weight of a water-soluble polymer, and ultraviolet absorption A liquid or gel perfume composition is disclosed which contains a soluble agent and is substantially free of alcohol.

Patent Document 2 discloses a single organic filter filtering UV _A , a single organic filter different from the first filter filtering UV _B , and 1-50% by weight of a solvent for said filter. An anti-UV additive comprising at least 95% by weight of a mixture consisting of at least one non-volatile oil, wherein the organic filter for filtering UV _A is selected from dibenzoylmethane derivatives and comprises from 5 to 5 by weight of the additive. 75% by weight, the UV _B filtering organic filter is selected from cinnamate derivatives and 20-90% by weight of the additive weight, the non-volatile oil isononyl isononanoate, dicaprylic acid/ selected from butylene glycol dicaprate, phenyltrimethicone, and diisostearyl malate, and representing 5 to 30% by weight of the weight of the additive, for a composition, wherein said composition comprises a perfume and a colorant; Disclosed is a cosmetic composition or flavored solution containing an anti-UV additive.

Patent Document 3 discloses a water-in-oil sunscreen containing (A) a cinnamic acid-based ultraviolet absorber, (B) porous silica, (C) oil, (D) a surfactant, and (E) water. An emulsified cosmetic is disclosed.

JP-A-08-225431 Japanese Patent No. 6551701 JP 2009-067683 A

For example, as described in the background art of Patent Document 3, sunscreen cosmetics have had a problem with the odor peculiar to the ultraviolet absorber blended in the cosmetics.

In addition, in recent years, sunscreen cosmetics have included UV scattering agents as well as UV absorbers, and as a result, odors have become even more complex. Among them, a sunscreen cosmetic containing a combination of an ultraviolet absorber diethylaminohydroxybenzoyl hexyl benzoate and an ultraviolet scattering agent has excellent sunscreen performance, but exhibits a unique sunscreen odor. was desired.

Therefore, the subject of the present disclosure is to provide a sunscreen cosmetic that improves the specific sunscreen odor that occurs when the ultraviolet absorber diethylaminohydroxybenzoyl hexyl benzoate and the ultraviolet scattering agent are used in combination.

<Aspect 1>
Contains diethylamino hydroxybenzoyl hexyl benzoate, UV scattering agent, polar oil, and fragrance,
The perfume is limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, hexyl acetate, 2,5,5-trimethyl-2-pentylcyclopentanone, acetic acid 2- (tert-butyl)cyclohexyl, allyl heptanoate, γ-undecanolactone, 2-phenylethyl alcohol, 1-phenylethyl acetate, linalool, citronellyl acetate, citronellol, β-ionone, α-hexylcinnamaldehyde, α-methyl- 1,3-benzodioxol-5-propanal, geraniol, cis-jasmone, γ-methylbenzene-1-pentanol, jasmine lactone, 1-(2-butenoyl)-2,6,6-trimethyl-1 ,3-cyclohexadiene, methylionone, piperonal, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octahydronaphthalene is at least one selected from
Sunscreen cosmetics.
<Aspect 2>
The cosmetic material according to aspect 1, wherein the ultraviolet scattering agent is particles subjected to a hydrophobic treatment.
<Aspect 3>
The cosmetic according to aspect 1 or 2, wherein the polar oil has an IOB value of 0.10 or more.
<Aspect 4>
The perfume is limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, 2-(tert-butyl)cyclohexyl acetate, allyl heptanoate, 2-phenylethyl alcohol, acetic acid 1-phenylethyl, linalool, citronellyl acetate, β-ionone, methylionone, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8- 4. The cosmetic according to any one of aspects 1 to 3, which is at least one selected from the group consisting of octahydronaphthalene.
<Aspect 5>
The cosmetic according to any one of aspects 1 to 4, further comprising a thickening agent.
<Aspect 6>
The cosmetic according to any one of aspects 1 to 5, wherein the content of the perfume is 1.0 × 10 ^-6 parts by mass or more per 100 parts by mass of the total amount of hexyl diethylaminohydroxybenzoylbenzoate and the ultraviolet scattering agent. .

According to the present disclosure, it is possible to provide a sunscreen cosmetic that improves the peculiar sunscreen odor that occurs when the ultraviolet absorber diethylaminohydroxybenzoyl hexyl benzoate and the ultraviolet scattering agent are used in combination.

FIG. 1 is a graph of masking and harmonizing effects when using various fragrances.

The embodiments of the present disclosure will be described in detail below. The present disclosure is not limited to the following embodiments, and various modifications can be made within the scope of the spirit of the invention.

The sunscreen cosmetic of the present disclosure (hereinafter sometimes simply referred to as "cosmetics") contains hexyl diethylaminohydroxybenzoylbenzoate, an ultraviolet scattering agent, and a polar oil, as well as the above specific fragrance.

Although not limited by the principle, the sunscreen cosmetic of the present disclosure has a unique sunscreen odor (hereinafter simply “sunscreen odor”) generated when diethylaminohydroxybenzoyl hexyl benzoate and an ultraviolet scattering agent are used in combination. ) can be improved as follows. Here, in order to make it easier to imagine such a sunscreen odor, it is not limited to the following, but it is not limited to the following. A complex odor of

Sunscreen cosmetics generally generate a unique odor associated with the base used. Various components are contained in the base, but the present inventor analyzed the odor of each part (for example, the ultraviolet absorber part, the ultraviolet scattering agent part) used when preparing the cosmetic. , Hexyl diethylaminohydroxybenzoylbenzoate and an ultraviolet scattering agent are used together to identify the source of the unpleasant odor. can be resolved.

If you are concerned about the smell, it is common to add perfume as described in Patent Document 1. However, the inventors of the present invention have found that not all perfumes are effective against the characteristic sunscreen odor that occurs when hexyl diethylaminohydroxybenzoylbenzoate and an ultraviolet scattering agent are used in combination. On the contrary, it was discovered that there are perfumes that increase unpleasant odors.

As a result of analyzing the relationship between the sunscreen odor and the perfume based on the masking effect and the harmonage effect, the present inventors selected a specific perfume from a myriad of perfumes. It has been found that such a sunscreen odor can be improved in a more comfortable direction, and furthermore, the sunscreen odor of a cosmetic composition containing hexyl diethylaminohydroxybenzoylbenzoate and an ultraviolet scattering agent as a whole can be improved in a more comfortable direction. .

The definitions of terms in this disclosure are as follows.

In the present disclosure, the "harmonage effect" means an effect in which an unpleasant odor component and a perfume component are incorporated to shift the quality of the unpleasant odor from unpleasant to pleasant.

In the present disclosure, "masking effect" means the effect of eliminating or masking unpleasant odors.

《Sunscreen cosmetics》
<Hexyl diethylaminohydroxybenzoyl benzoate>
The sunscreen cosmetic of the present disclosure contains hexyl diethylaminohydroxybenzoylbenzoate as an ultraviolet absorber. Commercially available products, for example, can be appropriately used as such materials.

The amount of diethylaminohydroxybenzoyl hexyl benzoate to be blended is not particularly limited, and can be appropriately blended so as to exhibit the desired sunscreen performance. Specifically, the blending amount can be, for example, 0.1% by mass or more, 0.5% by mass or more, or 1.0% by mass or more with respect to the total amount of the cosmetic, and 20% by mass. % or less, 15 mass % or less, 10 mass % or less, 7.0 mass % or less, or 5.0 mass % or less.

<Ultraviolet scattering agent>
The sunscreen cosmetic of the present disclosure contains an ultraviolet scattering agent. In the present disclosure, "ultraviolet scattering agent" intends an agent capable of physically blocking ultraviolet rays by reflection or scattering. UV scattering agents can be used alone or in combination of two or more, and for example, commercially available products can be used as appropriate.

The blending amount of the ultraviolet scattering agent may be, for example, 1.0% by mass or more, 3.0% by mass or more, or 5.0% by mass or more, or 40% by mass, based on the total amount of the cosmetic. 35% by mass or less, 30% by mass or less, or 25% by mass or less.

The sunscreen odor in the sunscreen cosmetic of the present disclosure is caused by the combined use of the ultraviolet absorber diethylaminohydroxybenzoyl hexyl benzoate and the ultraviolet scattering agent. The mixing ratio of hexyl diethylaminohydroxybenzoylbenzoate and the ultraviolet scattering agent is, for example, 5:1, 4:1, 3:1, 2:1, 1:1, 1:1.5, and 1. : 1:1, 1:1.5, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1: 9, and 1:10 up to any selected. Among them, the range of 2:1 to 1:6 is preferable, the range of 1:1 to 1:5 is more preferable, and the range of 1:1.5 to 1:5 is particularly preferable. When diethylaminohydroxybenzoyl hexyl benzoate and an ultraviolet scattering agent are used in combination within such a range, the sunscreen odor-improving effect of the perfume of the present disclosure can be suitably exhibited.

The ultraviolet scattering agent is not particularly limited, and examples thereof include metal oxide particles such as zinc oxide, titanium oxide, silicon oxide (silica), iron oxide, aluminum oxide, cerium oxide, chromium oxide, and tungsten oxide. can. Other examples include particles of barium sulfate, talc, mica, salicite, kaolin, titanium mica, Prussian blue, and chromium hydroxide. Among them, zinc oxide particles and titanium oxide particles are preferable from the viewpoint of sunscreen performance and the like.

The size of the UV scattering agent is not particularly limited, and can be appropriately set so as to achieve the desired sunscreen performance. For example, the average primary particle size of the ultraviolet scattering agent can be 10 nm or more, 20 nm or more, or 30 nm or more, and can be 100 nm or less, 70 nm or less, or 50 nm or less. Here, in the present disclosure, the “average primary particle size” means the size of the primary particles of the powder measured by a commonly used method, specifically, observed with a transmission electron microscope. It is a value obtained as an arithmetic mean of the length of the major axis and the length of the minor axis of 10 or more particles.

The shape of the ultraviolet scattering agent is not particularly limited, and examples include spherical, elliptical, flaky, and crushed shapes.

The UV scattering agent may be surface-treated. Surface treatment can be implemented by a well-known method. Alternatively, a surface-treated commercially available UV scattering agent may be used. UV scattering agents that have been surface-treated, especially hydrophobized, have a stronger odor than UV scattering agents that have not been surface-treated, but the sunscreen cosmetic of the present disclosure containing a specific fragrance has such a Even if the surface-treated ultraviolet scattering agent is contained, the sunscreen odor can be preferably improved.

From the viewpoint of dispersibility in cosmetics, hydrophobization treatment is preferable as the surface treatment. Examples of hydrophobizing agents used for hydrophobizing treatment include various compounds that can be used for hydrophobizing surface treatment of UV scattering agents blended in cosmetics, such as fatty acids, silicone compounds, fluorine compounds, and silane cups. ring agents and quaternary ammonium salt compounds. Hydrophobizing agents can be used alone or in combination of two or more.

Examples of fatty acids include palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, rosin acid, and 12-hydroxystearic acid.

Examples of silicone compounds include methylhydrogenpolysiloxane, dimethylpolysiloxane (dimethicone), and methylphenylpolysiloxane.

Examples of fluorine compounds include perfluoroalkyl group-containing esters, perfluoropolyethers, and polymers having perfluoroalkyl groups.

Examples of silane coupling agents include fluoroalkylsilane compounds such as perfluoroalkylsilane, trifluoromethylethyltrimethoxysilane, heptadecafluorodecyltrimethoxysilane; methyltriethoxysilane, ethyltriethoxysilane, hexyltriethoxysilane; , octyltriethoxysilane, and triethoxycaprylylsilane.

Examples of quaternary ammonium salt compounds include stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, cetyltrimethylammonium chloride, distearyldimethylammonium chloride, dibehenyldimethylammonium chloride, dicetyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, and dilauryldimethylammonium chloride.

<Polar oil>
The sunscreen cosmetic of the present disclosure contains polar oil. Polar oils are capable of dissolving hexyl diethylaminohydroxybenzoylbenzoate. A polar oil can be used individually or in combination of 2 or more types.

The amount of the polar oil to be blended is not particularly limited. % or less, 70% by mass or less, 65% by mass or less, or 60% by mass or less, depending on the form of the cosmetic (eg, oil-in-water cosmetic, water-in-oil cosmetic, oily cosmetic). can be compounded.

When the cosmetic is an oil-in-water type cosmetic, the amount of the polar oil to be blended is, for example, 0.5% by mass or more, 1.0% by mass or more, 3.0% by mass or more, based on the total amount of the cosmetic. 5.0% by mass or more, 7.0% by mass or more, 10% by mass or more, 13% by mass or more, or 15% by mass or more, and 50% by mass or less, 40% by mass or less, and 30% by mass 25% by mass or less, or 20% by mass or less.

When the cosmetic is a water-in-oil type cosmetic, the amount of the polar oil blended can be, for example, 20% by mass or more, 25% by mass or more, or 30% by mass or more with respect to the total amount of the cosmetic. , or 70% by mass or less, 65% by mass or less, or 60% by mass or less.

The polar oil is not particularly limited, and for example, a polar oil with an IOB of 0.10 or more can be used. Also, an organic UV absorber with an IOB of 0.10 or more can be regarded as a polar oil. Here, the polar oil is preferably liquid at room temperature. In the present disclosure, “normal temperature” can mean a range of 20° C.±15° C., for example.

The IOB value of the polar oil and the organic UV absorber that can be regarded as the polar oil can be, for example, 0.10 or more, 0.11 or more, 0.12 or more, or 0.13 or more, and 0.60 0.55 or less, 0.50 or less, 0.45 or less, or 0.40 or less. Here, the IOB value is an abbreviation for Inorganic/Organic Balance (inorganic/organic ratio), which is a value representing the ratio of the inorganic value to the organic value, and is an index indicating the degree of polarity of an organic compound. It becomes. The IOB value is specifically expressed as IOB value=inorganic value/organic value. For each of the "inorganicity value" and the "organicity value", various The "inorganic value" and "organic value" are set according to the atom or functional group, and the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound are accumulated. (See, for example, Yoshio Koda, "Organic Conceptual Diagram-Basics and Applications-", pp. 11-17, Sankyo Publishing, 1984).

(Polar oil with an IOB of 0.10 or more)
Examples of polar oils that satisfy these conditions are isopropyl myristate (IOB value = 0.18), octyl palmitate (IOB value = 0.13), isopropyl palmitate (IOB value = 0.16), and stearin. Butyl acid (IOB value = 0.14), hexyl laurate (IOB value = 0.17), myristyl myristate (IOB value = 0.11), decyl oleate (IOB value = 0.11), isononyl isononanoate (IOB value = 0.20), isotridecyl isononanoate (IOB value = 0.15), cetyl ethylhexanoate (IOB value = 0.13), pentaerythrityl tetraethylhexanoate (IOB value = 0.35), succinate Diethylhexyl Acid (IOB Value = 0.32), Dioctyl Succinate (IOB Value = 0.36), Glycol Distearate (IOB Value = 0.16), Glyceryl Diisostearate (IOB Value = 0.29), Dicapric Acid Neopentyl glycol (IOB value = 0.25), diisostearyl malate (IOB value = 0.28), trimethylolpropane triisostearate (IOB value = 0.16), glyceryl tri-2-ethylhexanoate (triethyl hexanoin) (IOB value = 0.35), trimethylolpropane trioctanoate (IOB value = 0.33), trimethylolpropane triisostearate (IOB value = 0.16), diisobutyl adipate (IOB value = 0. 46), N-lauroyl-L-glutamic acid-2-octyldodecyl ester (IOB value = 0.29), 2-hexyldecyl adipate (IOB value = 0.16), diisopropyl sebacate (IOB value = 0.40 ), 2-ethylhexyl palmitate (IOB value = 0.13), 2-ethylhexyl ethylhexanoate (IOB value = 0.20), triisostearin (IOB value = 0.16), PPG-3 dipivalate (IOB value = 0.52), tri(caprylic/capric)glyceryl (IOB value = 0.33), PPG-3 dipivalate (IOB value = 0.52), alkyl benzoate (for example, having 12 to 15 alkyl benzoate) (IOB value = 0.18). These can be used alone or in combination of two or more.

(Organic UV absorber with IOB of 0.10 or more)
Examples of organic UV absorbers satisfying these conditions include ethylhexyl methoxycinnamate, octocrylene, polysilicone-15, homosalate, and ethylhexyl salicylate. These ultraviolet absorbers can be used alone or in combination of two or more.

Among the organic UV absorbers with an IOB of 0.10 or more, there are UV absorbers that exhibit odors (for example, salicylic acid derivative UV absorbers such as homosalate). Therefore, when using such an organic UV absorber, 10% by mass or less, 7.0% by mass or less, 5.0% by mass or less, 3.0% by mass or less, 1.0% by mass or less, Alternatively, it is preferable to blend the organic UV absorber in the cosmetic at a ratio of 0.5% by mass or less, or it is more preferable not to blend such an organic UV absorber in the cosmetic.

<Perfume>
The sunscreen cosmetic of the present disclosure contains the following specific fragrances (hereinafter sometimes referred to as "specific fragrances"). By blending such fragrances into cosmetics, it is possible to improve the peculiar sunscreen odor caused by the UV absorber diethylaminohydroxybenzoyl hexyl benzoate and the UV scattering agent which are blended at the same time.

Specific fragrances include limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, hexyl acetate, 2,5,5-trimethyl-2-pentylcyclopentanone, acetic acid 2 -(tert-butyl)cyclohexyl, allyl heptanoate, γ-undecanolactone, 2-phenylethyl alcohol, 1-phenylethyl acetate, linalool, citronellyl acetate, citronellol, β-ionone, α-hexylcinnamaldehyde, α-methyl -1,3-benzodioxol-5-propanal, geraniol, cis-jasmone, γ-methylbenzene-1-pentanol, jasmine lactone, 1-(2-butenoyl)-2,6,6-trimethyl- consisting of 1,3-cyclohexadiene, methylionone, piperonal, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octahydronaphthalene At least one selected from the group can be mentioned. These perfumes are able to achieve scores greater than 0 in the Harmonage Test described below. Among others, limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, 2-(tert-butyl)cyclohexyl acetate, allyl heptanoate, 2-phenylethyl alcohol, acetic acid 1 -phenylethyl, linalool, citronellyl acetate, β-ionone, methylionone, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octa At least one selected from the group consisting of hydronaphthalene is preferred. Such a perfume can further improve the sunscreen odor when the score exceeds 0.3 in the Harmonage Test described later, and can further improve the sunscreen odor when the score exceeds 0.6.

The amount of the specific fragrance compounded can be appropriately adjusted according to, for example, the required degree of improvement in sunscreen odor and the required degree of fragrance. For example, the blending amount is 1.0×10 ⁻⁶ mass % or more, 5.0×10 −6 mass % or more, 1.0×10 ⁻⁵ mass % or more, 5.0×10 ⁻⁶ mass % or more, based on the total amount of the cosmetic. 0×10 ⁻⁵ % by mass or more, 1.0×10 ⁻⁴ % by mass or more, 5.0×10 ⁻⁴ % by mass or more, or 1.0×10 ⁻³ % by mass or more, and It can be 0.1% by mass or less, 0.05% by mass or less, or 0.03% by mass or less.

In addition, since the specific fragrance improves the peculiar sunscreen odor caused by diethylaminohydroxybenzoyl hexyl benzoate and the ultraviolet scattering agent, the amount of the specific fragrance to be blended is 100% of the total amount of diethylaminohydroxybenzoyl hexyl benzoate and the ultraviolet scattering agent. 1.0×10 ⁻⁶ mass parts or more, 5.0×10 ⁻⁶ mass parts or more, 1.0×10 ⁻⁵ mass parts or more, 5.0×10 ⁻⁵ mass parts or more per mass part; 0×10 ⁻⁴ parts by mass or more, 5.0×10 ⁻⁴ parts by mass or more, 1.0×10 ⁻³ parts by mass or more, or 5.0×10 ⁻³ parts by mass or more, It can also be 1.0 parts by mass or less, 0.50 parts by mass or less, 0.10 parts by mass or less, or 0.05 parts by mass or less.

In some embodiments, the sunscreen cosmetic of the present disclosure may contain fragrances other than the above-mentioned specific fragrances, as long as the effects of the present disclosure are not adversely affected. However, among fragrances, there are fragrances that have no effect on the sunscreen odor in the present disclosure, or that conversely produce unpleasant odors (hereinafter sometimes referred to as "incompatible fragrances"). . The amount of such incompatible perfumes is 1.0×10 ⁻³ % ^by mass or less, 5.0×10 −4% by mass or less, 1.0×10 ⁻⁴ % by mass or less, relative to the total amount of the cosmetic, It is preferably 5.0×10 ⁻⁵ mass % or less, 1.0×10 ⁻⁵ mass % or less, or 5.0×10 ⁻⁶ mass % or less, and more preferably does not contain incompatible perfumes. Such incompatible perfumes may include, for example, n-octanal and cis-3-hexen-1-yl salicylate. Here, whether or not perfumes other than the above specific perfumes correspond to incompatible perfumes can be evaluated by the harmonage test described later. Specifically, if the harmonizing effect score is 0 or less, the perfume can be considered an incompatible perfume when used alone.

<Optional component>
The sunscreen cosmetic of the present disclosure can appropriately contain various components within a range that does not adversely affect the effects of the present disclosure. Examples of various components include additive components that can be usually blended in sunscreen cosmetics, such as anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, thickeners, and moisturizing agents. dispersants such as bisbutyl dimethicone polyglyceryl-3, water-soluble polymers, oil-soluble polymers, film-forming agents such as siliconized polysaccharides, sequestering agents, lower alcohols such as ethanol, polyvalents such as ethylene glycol Alcohols, higher alcohols, various extracts, sugars, amino acids, organic amines, polymer emulsions, chelating agents, UV absorbers other than the above UV absorbers, pH adjusters, skin nutrients, vitamins, pharmaceuticals, quasi-drugs Water-soluble chemicals, buffers, preservatives, propellants, organic powders, inorganic powders other than UV scattering agents, pigments, dyes, pigments, water, oils other than the above polar oils, etc. that can be applied to cosmetics, cosmetics, etc. can be mentioned. Such optional components can be used alone or in combination of two or more.

In some embodiments, the sunscreen cosmetic of the present disclosure contains a thickening agent. As the thickener, an aqueous phase thickener, an oil phase thickener, or the like can be appropriately selected according to the form of the cosmetic (for example, oil-in-water cosmetic, water-in-oil cosmetic, oily cosmetic). . A thickener can be used individually or in combination of 2 or more types. In addition, since the sunscreen cosmetic of the present disclosure contains the specific fragrance described above, even if the thickener exhibits an odor, the sunscreen odor of the cosmetic as a whole can be suitably improved.

(Aqueous phase thickener)
Aqueous-phase thickeners that are usually blended in cosmetics can be used in order to increase the viscosity of the aqueous phase. Specific examples include various hydrophilic thickeners such as natural water-soluble polymers, semi-synthetic water-soluble polymers, synthetic water-soluble polymers, and inorganic thickeners. Aqueous phase thickeners can be used alone or in combination of two or more.

Examples of natural water-soluble polymers include plant-based polymers such as gum arabic, tragacanth gum, galactan, guar gum, carrageenan, pectin, quince seed (quince) extract, agar, and brown algae powder; microbial macromolecules such as synoglycan; and animal macromolecules such as collagen, casein, albumin and gelatin.

Examples of semi-synthetic water-soluble polymers include starch-based polymers such as carboxymethyl starch and methylhydroxy starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, stearoxyhydroxypropylmethylcellulose, cellulose sulfates; , hydroxypropyl cellulose, carboxymethyl cellulose, and crystalline cellulose; and alginic acid polymers such as sodium alginate and propylene glycol alginate.

Examples of synthetic water-soluble polymers include polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinylpyrrolidone, copolymers of vinylpyrrolidone and vinyl acetate, vinyl polymers such as carboxyvinyl polymer; sodium polyacrylate, polyethyl acrylates, polyacrylamides, alkyl acrylate/methacrylate copolymers (e.g., (acrylates/alkyl acrylate (C10-30)) crosspolymers), alkanolamine polyacrylates, copolymers of alkyl methacrylates and dimethylaminoethyl methacrylates, Acrylic polymers such as poly 2-acrylamido-2-methylpropanesulfonic acid, polymethacryloyloxytrimethylammonium, (acryloyldimethyltaurate ammonium/VP) copolymer, and (dimethylacrylamide/acryloyldimethyltaurate Na) copolymer.

Examples of inorganic thickeners include bentonite, laponite, hectorite, magnesium aluminum silicate, and anhydrous silicic acid.

The amount of the water-phase thickener to be blended can be, for example, 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more relative to the total amount of the cosmetic. 0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, or 2.0% by mass or less.

(Oil phase thickener)
As the oil phase thickener, those commonly blended in cosmetics can be used in order to increase the viscosity of the oil phase. Specific examples include dextrin fatty acid esters, sucrose fatty acid esters, and fatty acids or salts thereof. Oil phase thickeners can be used alone or in combination of two or more.

Dextrin fatty acid ester is an ester of dextrin or reduced dextrin and higher fatty acid, and can be used without particular limitation as long as it is commonly used in cosmetics. It is preferable to use dextrin or reduced dextrin having an average degree of sugar polymerization of 3-100. A saturated fatty acid having 8 to 22 carbon atoms is preferably used as a constituent fatty acid of the dextrin fatty acid ester. Specific examples include dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, and (palmitate/2-ethylhexanoate) dextrin.

As the sucrose fatty acid ester, a linear or branched, saturated or unsaturated fatty acid having 12 to 22 carbon atoms can be preferably used. Specifically, for example, sucrose caprylate, sucrose caprate, sucrose laurate, sucrose myristate, sucrose palmitate, sucrose stearate, sucrose oleate, sucrose Sugar erucate may be mentioned.

Fatty acids that are solid at room temperature can be used, such as myristic acid, palmitic acid, stearic acid, and behenic acid. Salts of fatty acids include calcium salts, magnesium salts and aluminum salts thereof.

The blending amount of the oil phase thickener can be, for example, 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more with respect to the total amount of the cosmetic. It can be 0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, or 2.0% by mass or less.

In some embodiments, the sunscreen cosmetic of the present disclosure contains oils other than the above polar oils. Such oils are not particularly limited, and examples thereof include hydrocarbon oils and silicone oils. Such oils may be used alone or in combination of two or more.

Examples of hydrocarbon oils include vaseline, liquid paraffin, tetraisobutane, hydrogenated polydecene, microcrystalline wax, olefin oligomers, isododecane, isohexadecane, squalane, polybutene, hydrogenated polybutene, polyisobutene, and hydrogenated polyisobutene.

Examples of silicone oils include linear silicone oils, branched silicone oils, and cyclic silicone oils.

Examples of linear silicone oils include dimethylpolysiloxane with a viscosity of 0.65 cs (sometimes referred to as "dimethicone"), dimethylpolysiloxane with a viscosity of 1 cs, dimethylpolysiloxane with a viscosity of 1.5 cs, and dimethyl with a viscosity of 2 cs. A polysiloxane is mentioned. Here, these viscosities are intended to be kinematic viscosities at 25°C.

Examples of branched silicone oils include methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane.

　Cyclic silicone oils include, for example, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

The blending amount of such oil is not particularly limited, and can be appropriately blended according to the form of the cosmetic (for example, oil-in-water cosmetic, water-in-oil cosmetic, oily cosmetic). For example, it may be blended in the same manner as the polar oil described above.

<Form and dosage form of cosmetic>
The sunscreen cosmetic of the present disclosure can be provided in the form of, for example, an oily cosmetic, a water-in-oil emulsified cosmetic, or an oil-in-water emulsified cosmetic. Such cosmetics can be prepared, for example, by known methods such as a dispersion method and an aggregation method. The production of cosmetics may include, for example, a heating step and a slow cooling step. When the heating step is performed, typically, the cosmetic during the heating step or the cosmetic that has undergone the heating step tends to have a stronger sunscreen odor, but the cosmetic of the present disclosure has the above-described specific , the odor of the sunscreen can be suitably improved even if the heating step is performed. The temperature conditions for the heating step are not particularly limited, and can be, for example, 70° C. or higher, 75° C. or higher, or 80° C. or higher, and 100° C. or lower, 95° C. or lower, 90° C. or lower, or 85° C. or lower. can be

The dispersion method is a method of refining the aggregates of the dispersed phase by mechanical force. Specifically, it is a method of emulsifying using the crushing force of an emulsifier, and examples of such a method include a high-pressure emulsification method in which a high-pressure homogenizer is used to apply a high shearing force.

The coagulation method is a colloidal preparation method that utilizes surface chemical properties, and is a method in which a uniformly dissolved state is brought into a supersaturated state by some means to emerge as a dispersed phase. As specific methods, the HLB temperature emulsification method, the phase inversion emulsification method, the non-aqueous emulsification method, the D phase emulsification method, the liquid crystal emulsification method, and the like are known.

As for the dosage form of the sunscreen cosmetic, for example, emulsion-like, cream-like, and liquid-like dosage forms can be adopted.

The present disclosure will be described in more detail with examples below, but the present disclosure is not limited to these. Hereinafter, unless otherwise specified, the compounding amount is indicated by mass%.

Using each test sample obtained by the manufacturing method below, the tests shown below were conducted, and the results are summarized in Tables 1 to 4 and Figure 1.

"Evaluation method"
<Harmonage test and masking test>
Each 5 g of the prepared cosmetic was filled in a 20 mL screw bottle, and the screw bottle was sealed with an attached cap. At room temperature, the cap was removed after it was left to stand for 1 hour or more after it was sealed, and a panel of three experts consisting of evaluators smelled the odor from the mouth of the bottle with a diameter of 1.5 cm, and the harmonization effect of each fragrance on the sunscreen odor. And the masking effect was sensory evaluated according to the following criteria. Each table shows the average of the evaluation scores of 3 expert panels. Here, if at least the score of the harmonage effect exceeds 0, it can be said that the sunscreen odor is suitably improved. It can be said that the stopping odor is more preferably improved. When the test sample was changed, the unscented control sample was sniffed before sniffing the next test sample. In addition, in order to prevent olfactory fatigue, when the evaluation took a long time (for example, 2 hours or more), a break of about 10 minutes or more was given every about 30 minutes.

Sensory score of harmonage effect +2 points: A good fragrance was exhibited in harmony with the sunscreen odor.
+1 point: Harmony with sunscreen odor and discomfort disappeared.
0 points: No change in unpleasant sunscreen odor.
-1 point: Discomfort was stronger than sunscreen odor.
-2 points: The odor was worse than that of the sunscreen.

Sensory score of masking effect 4 points: No sunscreen smell was felt.
3 points: Smell of sunscreen was felt a little.
2 points: A slightly strong sunscreen odor was felt.
1 point: A strong sunscreen odor was felt.
0 point: Sunscreen odor was hardly removed.

<<Test Example 1: Confirmation of improvement effect of sunscreen odor due to difference in fragrance>>
In Test Example 1, the effect of improving the sunscreen odor due to the difference in the blended perfume was examined. The results are shown in Tables 1-3.

<Method for producing cosmetics>
(Example 1)
Using the formulations shown in Table 1, oily cosmetics were produced by the following method.

Diethylaminohydroxybenzoyl hexyl benzoate, which is an ultraviolet absorber that is solid at room temperature, diisopropyl sebacate, which is a polar oil, and dextrin palmitate, which is a thickener, are mixed while being heated to 80°C to prepare an ultraviolet absorber part. bottom.

Next, powder parts were prepared by mixing the UV scattering agent zinc oxide hydrophobized with triethoxycaprylylsilane, the silicone oil dimethicone, and the dispersant bisbutyl dimethicone polyglyceryl-3.

While heating the UV absorber part at 80° C., the powder part is added to the UV absorber part and mixed uniformly. After slowly cooling to room temperature, the fragrance limonene is added and mixed uniformly to form an oily cosmetic. got

(Examples 2-25 and Comparative Examples 1-2)
Oil-based cosmetics of Examples 2 to 25 and Comparative Examples 1 and 2 were obtained in the same manner as in Example 1, except that the type and blending amount of the perfume was changed to those shown in Tables 1 to 3.

<result>
As is clear from Tables 1 to 3 and FIG. 1, the cosmetic containing the specific fragrance of the present disclosure suitably removes the specific sunscreen odor generated when hexyl diethylaminohydroxybenzoylbenzoate and an ultraviolet scattering agent are used in combination. It was confirmed that it could be improved.

On the other hand, from the results of Comparative Examples 1 and 2, it was also found that among the fragrances, there are fragrances that do not exert an effect on this particular sunscreen odor, or conversely, there are fragrances that make it more unpleasant. rice field.

<<Test Example 2: Confirmation of improvement effect of sunscreen odor due to difference in polar oil>>
In Test Example 2, the effect of improving sunscreen odor when using a polar oil different from the polar oil used in Test Example 1 was examined. Table 4 shows the results.

<Method for producing cosmetics>
(Examples 26-31 and Comparative Examples 3-6)
Oil-based cosmetics of Examples 26 to 31 and Comparative Examples 3 to 6 were obtained in the same manner as in Example 1, except that the formulations were changed to those shown in Table 4.

<result>
As is clear from Table 4, the cosmetic containing the specific fragrance of the present disclosure has a unique sunscreen odor generated when hexyl diethylaminohydroxybenzoylbenzoate and an ultraviolet scattering agent are used in combination, regardless of the type of polar oil. can be suitably improved.

<<Prescription example of sunscreen cosmetics>>
Formulation examples of the sunscreen cosmetic of the present disclosure are given below, but are not limited to these examples. Further, among the cosmetics having the formulations shown below, the cosmetics of Formulation Examples 1 and 2 are water-in-oil emulsified cosmetics, and the cosmetics of Formulation Examples 3 to 5 are oil-in-water emulsified cosmetics. , and these were each prepared by a conventional method. Note that each of the cosmetics described in the formulation examples below also contained the specific fragrance of the present disclosure, so that the above-mentioned specific sunscreen odor was favorably improved.

Claims

Contains diethylamino hydroxybenzoyl hexyl benzoate, UV scattering agent, polar oil, and fragrance,
The perfume is limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, hexyl acetate, 2,5,5-trimethyl-2-pentylcyclopentanone, acetic acid 2- (tert-butyl)cyclohexyl, allyl heptanoate, γ-undecanolactone, 2-phenylethyl alcohol, 1-phenylethyl acetate, linalool, citronellyl acetate, citronellol, β-ionone, α-hexylcinnamaldehyde, α-methyl- 1,3-benzodioxol-5-propanal, geraniol, cis-jasmone, γ-methylbenzene-1-pentanol, jasmine lactone, 1-(2-butenoyl)-2,6,6-trimethyl-1 ,3-cyclohexadiene, methylionone, piperonal, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octahydronaphthalene is at least one selected from
Sunscreen cosmetics.
The cosmetic according to claim 1, wherein the ultraviolet scattering agent is a hydrophobic-treated particle.
The cosmetic according to claim 1 or 2, wherein the polar oil has an IOB value of 0.10 or more.
The perfume is limonene, dimethyl-3-cyclohexene-1-carbaldehyde, 4-methyl-3-decen-5-ol, 2-(tert-butyl)cyclohexyl acetate, allyl heptanoate, 2-phenylethyl alcohol, acetic acid 1-phenylethyl, linalool, citronellyl acetate, β-ionone, methylionone, coumarin, and 2-acetyl-2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8- The cosmetic according to any one of claims 1 to 3, which is at least one selected from the group consisting of octahydronaphthalene.
The cosmetic according to any one of claims 1 to 4, further comprising a thickening agent.
6. The perfume according to any one of claims 1 to 5, wherein the content of the perfume is 1.0 × 10 -6 parts by mass or more per 100 parts by mass of the total amount of hexyl diethylaminohydroxybenzoylbenzoate and the ultraviolet scattering agent. cosmetics.