JP6829581B2 - Oily cosmetics - Google Patents

Description

The present invention relates to oil-based cosmetics.

Various studies have been conducted on oil-based cosmetics such as lipsticks in order to obtain a beautiful finish and a smooth feel. For example, Patent Document 1 describes that an oily cosmetic in which a specific acylated cellulose derivative is combined with an ester oil and a hydrocarbon oil in a specific ratio maintains a smooth feel. Further, Patent Document 2 describes that an oil-based cosmetic containing a specific acylated cellulose derivative, a silicone oil agent, and an ester oil has excellent transparency and luster, and a smooth feel is maintained. It is described that an oily cosmetic containing a specific acylated cellulose derivative and a silicone having a nonionic hydrophilic group has an excellent durability of a beautiful cosmetic finish and a smooth feel.

Japanese Unexamined Patent Publication No. 2010-100612 Japanese Unexamined Patent Publication No. 2011-79746 Japanese Unexamined Patent Publication No. 2011-173818

An oil-based cosmetic containing an acylated cellulose derivative has an excellent smooth feel, but has problems in terms of color transfer and color retention.

When a specific acylated cellulose derivative and a volatile hydrocarbon oil and an ester oil are used in a specific ratio in combination, the present inventors have an excellent smooth feel, suppress color transfer, and improve color retention. It was found that the oil-based cosmetics obtained were obtained.

In the present invention, the following components (A), (B) and (C):
(A) It has a cellulose skeleton in the main chain, and 45 to 95 mol% of all hydroxyl groups is a group-OM-R (M represents CH ₂ or a carbonyl group C = O, and R is a direct chain having 3 to 40 carbon atoms. 1 to 50% by mass of cellulose derivative substituted with (indicating an alkyl or alkenyl group) of the chain or branched chain,
(B) Volatile hydrocarbon oil 5-80% by mass,
(C) Ester oil liquid at 25 ° C. 5 to 50% by mass
When the mass ratio (B) / (C) of the component (B) to the component (C) is 0.7 to 9 and the shear rate at 25 ° C. is 0.1 s ^-1 , the shear of the entire bulk is carried out. The present invention relates to oil-based cosmetics having a viscosity of 1500 Pa · s or less.

The oil-based cosmetic of the present invention does not feel stiff or taut when applied, has smooth lips and skin, and suppresses secondary adhesion to cups and the like immediately after application and even after a long period of time, and water. It is also resistant to getting wet. Also, when removing cosmetics from the lips or skin, it can be removed cleanly.

The cellulose derivative of the component (A) used in the present invention is not limited as long as it has a cellulose skeleton in the main chain, but the raw material cellulose derivative includes cellulose and short-chain acyl such as acetyl cellulose and acetyl butyl cellulose. Short-chain alkyl etherified cellulose such as modified cellulose, methyl cellulose, and ethyl cellulose, and cellulose modified with a hydroxyalkyl group, a glyceryl ether group, and a (mono) alkyl glyceryl ether group are preferable. More specifically, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, glyceryl cellulose, methyl glyceryl cellulose and the like can be mentioned.
Further, the cellulose derivative as a raw material for producing the cellulose derivative of the component (A) preferably has the following structural units.

(In the formula, R'indicates a linear or branched alkylene group having 2 to 8 carbon atoms, and n indicates a number in which the average number of moles of R'O added per glucose unit is 0.1 to 10.)

In the structural unit, as R', an alkylene group having 2 to 4 carbon atoms in a straight chain or a branched chain is preferable, and an ethylene group and a propylene group are more preferable. Further, as n, the number of R'O added moles per glucose unit is preferably 0.3 to 5, more preferably 0.5 to 4.5, and 1 to 4 is preferable. More preferred.

Preferred raw material cellulose derivatives include hydroxyethyl cellulose, hydroxypropyl cellulose and the like, with hydroxypropyl cellulose being more preferred.
The mass average molecular weight (Mw) of the raw material cellulose derivative is preferably 10,000 to 4 million, more preferably 100,000 to 3 million, still more preferably 300,000 to 200, from the viewpoint of solubility in an oil agent and feel. It is ten thousand.

The cellulose derivative of the component (A) has CH ₂ or a carbonyl group C = O in the group-O-M-R which is a substituent of the hydroxyl group of the raw material cellulose derivative, and R is a direct group having 3 to 40 carbon atoms. It is an alkyl group or an alkenyl group of a chain or a branched chain.
(I) As the linear alkyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, Heptadecyl group, octadecyl group, nonadesyl group, icosyl group, henicosyl group, docosyl group, tricosyl group, tetracosyl group, pentacosyl group, hexacosyl group, heptacosyl group, octacosyl group, nonacosyl group, triacontyl group, hentoriacontyl group, dotoriacontyl group Examples thereof include a tritririacontyl group, a tetratririacontyl group, a pentatriacontyl group, a hexatriacontyl group, a heptritoriacontyl group, an octatriacontyl group, a nonatriacontyl group and a tetracontyl group.

(Ii) As the alkyl group of the branched chain, methylpentyl group, methylhexyl group, methylheptyl group, methyloctyl group, methylnonyl group, methylundecyl group, methylheptadecyl group, ethylhexadecyl group, methyloctadecyl group and propyl Pentadecyl group, 2-hexyldecyl group, 2-octyldodecyl, 2-heptylundecyl group, 2-decyltetradecyl group, 2-dodecyl hexadecyl group, 2-tetradecyl octadecyl group, 2-hexadecyl icosyl group And so on.

(Iii) Examples of the linear alkenyl group include dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, octadecenyl group, nonadesenyl group, icosenyl group, henicosenyl group, docosenyl group, tricosenyl group, tetracosenyl group. Examples thereof include a pentacosenyl group, a hexacosenyl group, a heptacosenyl group, an octacosenyl group and the like.
(Iv) As the alkenyl group of the branched chain, isotridecenyl group, isooctadecenyl group, isotoriacontenyl group, 2-butyloctenyl group, 2-hexyldecenyl group, 2-octyldodecenyl group, 2-decyltetra Examples thereof include a decenyl group and a 2-dodecylhexadecenyl group.

Of these, a linear alkyl group is preferable for R from the viewpoint of imparting smoothness when the oily cosmetic is applied and forming a uniform film on the lips and skin. Further, from the viewpoint of ease of stretching and good adhesion, the number of carbon atoms is preferably 9 to 21, more preferably 11 to 17 carbon atoms, and even more preferably 15 carbon atoms.

The group-OMR substitution rate of the hydroxyl group is 45 mol% or more from the viewpoint of increasing the solubility in the oil agent, not feeling stiff or taut at the time of application, and suppressing the secondary adhesion to the cup or the like. It is preferably 48 mol% or more, more preferably 51 mol% or more, and from the viewpoint of increasing the resistance to twisting and water resistance, it is 95 mol% or less, preferably 94 mol% or less, more preferably 92 mol% or less, still more preferably 66 mol% or less. .. The group-OMR substitution rate of the hydroxyl group is 45 to 95 mol%, preferably 48 to 94 mol%, more preferably 51 to 92 mol%, still more preferably 51 to 66 mol%.
It is preferable that the hydroxyl group remains appropriately from the viewpoint of usability and pigment dispersibility, preferably 5 mol% or more, more preferably 6 mol% or more, further preferably 8 mol% or more, still more preferably 34 mol% or more. , 55 mol% or less, more preferably 52 mol% or less, still more preferably 49 mol% or less. The residual ratio of the hydroxyl group is preferably 5 to 55 mol%, more preferably 6 to 52 mol%, further preferably 8 to 49 mol%, still more preferably 34 to 49 mol%.

The mass average molecular weight of the cellulose derivative of the component (A) is preferably 100,000 or more, more preferably 200,000 or more, further preferably 300,000 or more, and even more preferably 50, from the viewpoint of sustainability in the oil component and a smooth feel. More than 10,000 is more preferable, 5 million or less is more preferable, 4 million or less is more preferable, 3 million or less is further preferable, and 2 million or less is further preferable.
The mass average molecular weight (Mw) is determined by gel permeation chromatography (using a calibration curve defined with a chloroform solvent and linear polystyrene as a standard and a refractive index detector).

The cellulose derivative of the component (A) is obtained by reacting the raw material cellulose derivative with an acid halide having a linear or branched alkyl group or alkenyl group having 3 to 40 carbon atoms, and 45 to 95 mol of all the hydroxyl groups of the raw material cellulose derivative. Manufactured by substituting%.
Further, the product in which M is CH ₂ can be produced by reacting a cellulose derivative with a corresponding sulfonic acid ester such as alkyl halide or alkyl mesylate in the presence of a base. Those having a cellulose skeleton as the main chain can also be obtained by a transesterification reaction (acidorysis) of acetyl cellulose. According to this method, a cellulose ester derivative having an extremely low residual amount of hydroxyl groups can be obtained.

Specifically, hydroxyethyl cellulose laurate ester, hydroxyethyl cellulose myristic acid ester, hydroxyethyl cellulose palmitate ester, hydroxyethyl cellulose stearic acid ester, hydroxyethyl cellulose bechenic acid ester; hydroxypropyl cellulose lauric acid ester, hydroxypropyl cellulose myristic acid ester, hydroxy Propropylcellulose palmitate, hydroxypropylcellulose stearate, hydroxypropylcellulosebechenic acid ester; hydroxyethylmethylcelluloselauric acid ester, hydroxyethylmethylcellulose myristic acid ester, hydroxyethylmethylcellulosepalmitic acid ester, hydroxyethylmethylcellulose stearate ester, hydroxyethyl Methylcellulose bechenic acid ester; examples thereof include hydroxypropylmethylcellulose laurate ester, hydroxypropylmethylcellulose myristic acid ester, hydroxypropylmethylcellulose palmitate ester, hydroxypropylmethylcellulose stearate ester, hydroxypropylmethylcellulose bechenic acid ester and the like. Among them, hydroxypropyl cellulose laurate ester, hydroxypropyl cellulose myristic acid ester, hydroxypropyl cellulose palmitic acid ester, hydroxypropyl from the viewpoint of forming a uniform film on the lips and skin and suppressing secondary adhesion to cups and the like. Cellulose stearic acid ester and hydroxypropyl cellulose bechenic acid ester are preferable, and hydroxypropyl cellulose palmitic acid ester is more preferable.

As the cellulose derivative of the component (A), one kind or two or more kinds can be used, and the content is from the viewpoint of forming a uniform film on the lips, skin and the like and suppressing secondary adhesion to the cup and the like. 1% by mass or more, preferably 1.5% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, 50% by mass or less, and preferably 30% by mass or less in the total composition. 20% by mass or less is more preferable, 15% by mass or less is further preferable, and 10% by mass or less is further preferable. The content of the component (A) is 1 to 50% by mass, preferably 1.5 to 30% by mass, more preferably 2 to 20% by mass, still more preferably 2 to 15% by mass in the total composition. 3 to 10% by mass is even more preferable.

The component (B) is a volatile hydrocarbon oil. Volatile means having a flash point of 35 to 87 ° C.
As the volatile hydrocarbon oil of the component (B), it has excellent compatibility with the component (A), and even after the volatile hydrocarbon oil volatilizes, it does not feel sticky or stiff. For example, paraffinic hydrocarbon oils such as n-decane, n-undecane and n-dodecane; isoparaffinic hydrocarbon oils such as isodecan, isododecane and hydrogenated polyisobutene; cyclic paraffin hydrocarbon oils such as cyclodecane and cyclododecane. Be done. Of these, a hydrocarbon oil having 8 to 16 carbon atoms is preferable, a hydrocarbon oil having 10 to 16 carbon atoms is more preferable, and a hydrocarbon oil having 12 carbon atoms is further preferable. Among them, isoparaffinic hydrocarbon oil is preferable, isododecane and hydrogenated polyisobutene having 12 carbon atoms are more preferable, and isododecane is further preferable.
Examples of commercially available products include Marcazole R (manufactured by Maruzen Petrochemical Co., Ltd .: flash point 48 ° C.), Pearl Dream 3 (manufactured by NOF Corporation: flash point 61 ° C.), and the like.

As the component (B), one type or two or more types can be used, and the content is excellent in compatibility with the components (A) and (C), and after being applied to the lips, skin, etc., the component (B) becomes Even after volatilization, it does not become stiff or sticky, forms a uniform film on the lips, etc., and secondary adhesion to cups, etc. is suppressed, so it is 5% by mass or more in the total composition. , 35% by mass or more, more preferably 40% by mass or more, further preferably 45% by mass or more, further preferably 46% by mass or more, still more preferably 80% by mass or less, preferably 75% by mass or less, and preferably 70% by mass. The following is more preferable, and 66% by mass or less is further preferable. The content of the component (B) is 5 to 80% by mass in the total composition, preferably 35 to 75% by mass, more preferably 40 to 75% by mass, further preferably 45 to 70% by mass, and 46 to 46 to 70% by mass. 66% by mass is even more preferable.

The ester oil of the component (C) used in the present invention is liquid at 25 ° C. The liquid at 25 ° C. has fluidity, and includes paste-like ones.
The ester oil is not limited as long as it is used in ordinary cosmetics, and for example, isotolideyl isononanoate, diisostearyl malate, isostearyl myristate, octyldodecyl ricinoleate, neopentyl glycol dicaprate, and diisostearate. Examples thereof include diglyceryl acid, glyceryl monomyristate monoisostearate, 2-ethylhexyl paramethoxysilicate, tocopherol acetate, diglyceryl monoisostearate and the like.
Of these, ester oil having a branched chain has excellent compatibility with component (A) and does not become stiff or sticky even after component (B) has volatilized after being applied to lips or skin. Ispreferably isotridecyl isononanoate, diisostearyl malate, isostearyl myristate, octyldodecyl ricinoleate, diglyceryl diisostearate, glyceryl monomyristearate, 2-ethylhexyl paramethoxysilicate, diglyceryl monoisostearate. Is more preferable, and isotridecyl isononanoate and diisostearyl malate are even more preferable.

As the ester oil of the component (C), one type or two or more types can be used, and the content is excellent in compatibility with the component (A), and the component (B) volatilizes after being applied to the lips, skin and the like. Even after this, it does not become stiff or sticky, forms a uniform film on the lips, etc., and secondary adhesion to the cup is suppressed, so it is 5% by mass or more in the total composition, 7 Mass% or more is preferable, 10% by mass or more is more preferable, 13% by mass or more is further preferable, 50% by mass or less, 40% by mass or less is preferable, 35% by mass or less is more preferable, and 33% by mass or less is further preferable. preferable. The content of the component (C) is 5 to 50% by mass, preferably 7 to 40% by mass, more preferably 10 to 35% by mass, and even more preferably 13 to 33% by mass in the total composition.

In the present invention, the mass ratio (B) / (C) of the component (B) to the component (C) does not feel stiff or taut at the time of application, the lips and skin are smooth, and immediately after application and for a long time. Even after the lapse of time, secondary adhesion to the cup is suppressed, it is resistant to getting wet, and even when the lipstick is removed from the lips, it can be removed cleanly, so it is 0.7 or more, 1.0. The above is preferable, 1.4 or more is more preferable, 9 or less is preferable, 7 or less is preferable, and 5 or less is more preferable. The mass ratio (B) / (C) of the component (B) to the component (C) is 0.7 to 9, preferably 1.0 to 7, and more preferably 1.4 to 5.

In the present invention, the mass ratio (A) / (C) of the component (A) to the component (C) does not feel stiff or taut at the time of application, the lips and skin are smooth, and immediately after application and for a long time. Even after the lapse of time, secondary adhesion to cups, etc. is suppressed, it is resistant to getting wet, and even when cosmetics are removed from the lips or skin, it can be removed cleanly. Preferably, 0.12 or more is more preferable, 0.14 or more is further preferable, 1.25 or less is preferable, 1.0 or less is more preferable, and 0.65 or less is further preferable. The mass ratio (A) / (C) of the component (A) to the component (C) is preferably 0.10 to 1.25, more preferably 0.12 to 1.0, and 0.14 to 0. 65 is more preferred.

The oil-based cosmetic of the present invention can further contain (D) an organic silicone resin, so that the cosmetic is uniformly adhered to the lips, skin, etc., the adhesion is improved, and the water resistance is improved. Can be done.
As the organic silicone resin of the component (D), any one usually used for cosmetics can be used, for example, (D-1) trimethylsiloxysilicic acid, (D-2) fluorine-modified silicone. Examples include resin.

Among the component (D), the component (D-1) trimethylsiloxysilicic acid is not limited as long as it is used in ordinary cosmetics, and is a compound having a crosslinked structure having a siloxane structure as a main skeleton. (CH ₃ ) ₃ SiO _1/2 ] _X [SiO ₂ ] _Y (X is 1 to 3, Y is 0.5 to 8) is preferable.
The component (D-1) trimethylsiloxysilicic acid preferably has a mass average molecular weight of 1000 to 10000, more preferably 2000 to 9000, and even more preferably 3000 to 6000 from the viewpoint of usability and long-lasting makeup. .. Further, the property may be liquid, gum-like, paste-like, solid-like or the like at 25 ° C., but the solid-like property is preferable from the viewpoint of obtaining makeup retention. Further, from the viewpoint of compoundability, it can be used as a solution or dispersion diluted with a solvent, or as a solution or dispersion obtained by mixing in advance. As the solvent to be diluted or dispersed, one or more selected from dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and isododecane are preferable, and volatile dimethylpolysiloxane and decamethylcyclopentasiloxane are used. More preferred. The volatility has a flash point of 35 to 87 ° C.

Commercially available products of the component (D-1) are those that have been previously dissolved in a solvent, such as KF-7312J (50% solid content decamethylcyclopentasiloxane solution) and KF-9021 (50% decamethylcyclopentasiloxane solution). , X21-5249 (50% decamethylcyclopentasiloxane solution) (above, manufactured by Shinetsu Chemical Industry Co., Ltd.), SS4267 (35% dimethylpolysiloxane solution), SR1000 (above, manufactured by Momentive Performance Materials Japan GK) , BY11-018 (30% cyclopentasiloxane solution) (manufactured by Toray Dow Corning Silicone), BEALSIL TMS 803 (manufactured by Walker Chemie AG), and the like can be used.

Of the component (D), the component (D-2) fluorine-modified silicone resin has the general formula (1).
R ¹ _a SiO _{(4-a) / 2} (1)
(In the formula, R ¹ represents a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group or a general formula −R ² −Rf (R ² represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf is a carbon. a number indicating the 1-8 perfluoroalkyl group), an arbitrarily chosen a hydroxyl group and the general formula -R ² -Rf from the functional groups as an essential, 1.0 ≦ a ≦ 1 a is an average number. 8)
Those having a structure represented by are preferable.
The fluorine-modified silicone resin has a silanol group in the molecule from the viewpoint of adhesion to the skin and powder, and the ratio of the OH group in the silanol group is 0.1 to 5% by mass with respect to the resin mass. Is preferable, and 0.5 to 5% by mass is more preferable.
The component (D-2) is preferably a solid at 25 ° C., and from the viewpoint of compoundability, it may be a solution or dispersion diluted with a solvent, or a solution or dispersion obtained by mixing in advance. It can also be used in the state. As the solvent to be diluted or dispersed, cyclic silicone, dimethylpolysiloxane and the like are preferable. As the cyclic silicone, it is preferable to dissolve it in one or more selected from octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5).
Examples of such a fluorine-modified silicone resin include XS66-B8226, XS66-C1191 and XS66-B8636 (hereinafter, Momentive Performance Materials), which have INCI names of "Trifluoropropyldimethyl / Trimethylsiloxysilicate". Commercially available products such as (manufactured by the company) can be used.

The organic silicone resin of the component (D) can be used alone or in combination of two or more, and the content is such that the cosmetic is uniformly adhered to the lips, the skin, etc., and the adhesion is improved. Further, from the viewpoint of excellent water resistance, 0.01% by mass or more is preferable, 0.2% by mass or more is more preferable, 0.5% by mass or more is further preferable, and 1% by mass or more is more preferable in the total composition. , 25% by mass or less, more preferably 20% by mass or less, further preferably 15% by mass or less, still more preferably 13% by mass or less. The content of the component (D) is preferably 0.01 to 25% by mass, more preferably 0.2 to 20% by mass, further preferably 0.5 to 15% by mass, and 1 to 13 in the total composition. Mass% is even more preferred.

In the present invention, the mass ratio (A) / (D) of the component (A) to the component (D) suppresses secondary adhesion to the cup or the like immediately after application and after a long period of time, and is also wet with water. It is strong, and when removing cosmetics from the lips and skin, it can be removed cleanly, so 0.05 or more is preferable, 0.2 or more is more preferable, 0.3 or more is further preferable, and 0.5 or more. The above is even more preferable, 40 or less is preferable, 20 or less is more preferable, 12 or less is further preferable, and 10 or less is even more preferable. The mass ratio (A) / (D) of the component (A) to the component (D) is preferably 0.05 to 40, more preferably 0.2 to 20, further preferably 0.3 to 12, and 0. .5-10 is even more preferred.

Furthermore, the oily cosmetics of the present invention can contain a solid wax at 25 ° C. A solid at 25 ° C. refers to a solid showing properties at 25 ° C. and having a melting point of 61 ° C. or higher.
The wax solid at 25 ° C. is not limited as long as it is used in ordinary cosmetics, and is not limited, for example, mineral waxes such as ozokelite and selecin; petroleum waxes such as paraffin and microcrystallin wax; Fisher Tropsch wax. , Synthetic hydrocarbons such as polyethylene wax; Vegetable waxes such as carnauba wax, candelilla wax, rice wax, wood wax, sunflower wax; Animal waxes such as beeswax and whale wax; Synthetic waxes such as silicone wax and synthetic beeswax Can be mentioned.

The wax solid at 25 ° C. gives the oily cosmetics an appropriate hardness, suppresses oil seepage, and imparts moisture. Therefore, the melting point is preferably 65 ° C. or higher and 140 ° C. or lower, and 70 ° C. or higher and 90 ° C. The following is more preferable. Further, it is preferable not to contain wax having a melting point exceeding 90 ° C. from the viewpoint of imparting a smooth feeling of use.

Further, the wax solid at 25 ° C. imparts an appropriate hardness to the oil-based cosmetics, suppresses oil seepage, and imparts moisture. Therefore, the degree of needle penetration at 25 ° C. is 1 or more and 150 or less. Is preferable, and 15 or more and 110 or less are more preferable.
Here, the degree of needle insertion was such that the specified needle (needle mass 2.5 ± 0.02 g, needle holder mass 47.5 ± 0.02 g) was applied to the wax sample maintained at 25 ± 0.1 ° C. (Mass of weight 50 ± 0.05 g) measures the length of needle insertion in 5 seconds, and the value obtained by multiplying the needle insertion distance (mm) by 10 is used as the needle insertion degree. JIS K-2235- It is a value measured according to 5.4 (1991).

Examples of the solid wax having a needle insertion degree of 1 or more and 150 or less at 25 ° C. include mineral wax, petroleum wax and synthetic hydrocarbon. Among them, microcrystalline wax and paraffin wax having a needle insertion degree of 15 or more and 110 or less are preferable, and a needle insertion degree of 15 or more is preferable because the dullness of the appearance color is suppressed, the durability of the coating film and the moisturizing performance are high. , 110 or less microcrystalline wax is more preferred. Further, it is preferable that the microcrystalline wax has a needle insertion degree of 25 or more and 80 or less at 25 ° C.
Commercially available products can be used as these waxes. For example, as microcrystalline wax, Multiwax W-445, W-835 (all manufactured by SONNEBORN), Paracera M (manufactured by Paramelt), Hi-Mic-1045. Examples thereof include 1070 and 2045 (all manufactured by Nippon Seiro Co., Ltd.), refined microcrystalline wax (manufactured by Nikko Rika Co., Ltd.), and 155 ° microwax (manufactured by Nippon Petroleum Co., Ltd.).
The microcrystalline wax having a needle insertion degree of 15 or more is preferably contained in a solid wax at 25 ° C. in an amount of 50% by mass or more, preferably 70% by mass or more, from the viewpoint of giving a smooth feeling of use and gloss at the time of application. Is more preferable.

The wax solid at 25 ° C. can be used alone or in combination of two or more, and the content is less than 5% by mass in the total composition from the viewpoint of suppressing the kinking of the cosmetic on the lips and the like. It is preferably 3% by mass or less, further preferably 1% by mass or less, and even more preferably 0.5% by mass or less.

Furthermore, the oily cosmetics of the present invention can contain powders. The powder is not limited as long as it is used in ordinary cosmetics, and extender pigments, coloring pigments, brilliant pigments and the like can be used.
Examples of extender pigments include silicic acid, silicic anhydride, magnesium silicate, talc, sericite, mica, synthetic mica, glass flakes, synthetic phlogopite, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, and magnesium oxide. , Inorganic pigments such as aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate and composite powders thereof.

Examples of the coloring pigment include metal oxides such as titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, dark blue, ultramarine blue, chromium oxide, and chromium hydroxide; and metal complexes such as manganese violet and cobalt titanate; Furthermore, inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228. No., Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, Blue No. 404, etc. Synthetic organic pigments; natural organic pigments such as β-carotene, caramel, and paprika pigments.

Examples of bright pigments include titanium oxide, iron oxide, silicon oxide, dark blue, chromium oxide, tin oxide, chromium hydroxide, and gold on the surface of plate-like powders such as mica, synthetic gold mica, glass, silica, and alumina. Film raw fabrics such as those coated with colorants such as silver, carmine, and organic pigments, polyethylene terephthalate / polymethylmethacrylate laminated powder, polyethylene terephthalate / aluminum vapor deposition powder, polyethylene terephthalate / gold vapor deposition laminated powder, etc. can be made into arbitrary shapes. Cut or the like can be used.
As these powders, those which have been subjected to various surface treatments such as water repellent treatment and water repellent / oil repellent treatment by a usual method can also be used.

As the powder, one kind or two or more kinds can be used, and the content is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and preferably 20% by mass or less in the total composition. More preferably, it is 10% by mass or less. The powder content is preferably 0.01 to 20% by mass, more preferably 0.05 to 10% by mass in the total composition.

Further, in the oily cosmetics of the present invention, in addition to the above-mentioned components, components used in ordinary cosmetics, for example, oily components other than the components (B) and (C), surfactants, lower alcohols, polyhydric alcohols, etc. It can contain polymer compounds other than the components (A) and (D), ultraviolet absorbers, antioxidants, dyes, fragrances, coloring materials, antifouling agents, moisturizers, water and the like.

The oily cosmetic of the present invention can be produced by a usual method, and the dosage form may be solid, semi-solid, gel, liquid or the like.

The oil-based cosmetic of the present invention has a shear viscosity of 1500 Pa · s or less and 900 Pa · s or less when the shear rate is 0.1 s ^-1 at 25 ° C. from the viewpoint of ease of stretching at the time of application. It is preferably 500 Pa · s or less, more preferably 250 Pa · s or less, further preferably 200 Pa · s or less, preferably 10 Pa · s or more, and 20 Pa · s or less. It is more preferably s or more, and further preferably 30 Pa · s or more. Further, when the shear rate at 25 ° C. is 0.1 s ^-1 , the shear viscosity of the entire bulk is preferably 10 to 900 Pa · s, more preferably 20 to 500 Pa · s, and 20 to 250 Pa · s. Is even more preferable, and 30 to 200 Pa · s is even more preferable.
Shear viscosity is measured with a rheometer. The jig is φ25 mm. The shear viscosity when the shear rate is 0.1 s ^-1 is read and measured. Specifically, the adjusted bulk is measured with a rheometer (MCR301; manufactured by Anton Pearl Co., Ltd.). The jig is φ25 mm. The shear viscosity when the shear rate is 0.1 s ^-1 is read and measured.

The oil-based cosmetic of the present invention is a cosmetic having an oil agent as a continuous phase, and is used for skin, lips, eyelashes, nails, and hair, and preferably for lips. Lip cosmetics such as lipstick, lip gloss, lip liner; Makeup cosmetics such as mascara, eyeliner, eyeshadow, teak color, foundation, concealer; cream, milky lotion, serum, massage agent, deodorant, sunscreen, hair growth It can be an agent, hair color, hair wax, hair foam, etc. Above all, it is suitable as a lip cosmetic selected from lipstick, lip gloss, and lip liner.

The oil-based cosmetic of the present invention is preferably used on the application site such as skin, lips, eyelashes, nails, and hair by using a cosmetic application tool.

The oil-based cosmetic of the present invention is a cosmetic application tool, preferably in the form of being stored in a container to be taken out, and the container to be taken out is more preferably a bottle container, a jar container, or a tube container, and above all, dripping during use. From the viewpoint of suppressing, bottle containers and tube containers are more preferable.

The cosmetic application tool for taking out the oily cosmetic stored in the container has a coating surface for applying the cosmetic, and has a support shaft having the coating portion connected to the tip. Specific examples include chips, sponges, puffs, and brushes. Among them, a cosmetic application tool having a coating surface for applying cosmetics and having a coating portion made of a cone-shaped or flat body and a support shaft having the coating portion connected to the tip thereof. It is preferable from the viewpoint of easy removal to application tools and ease of application to lips, skin, etc. from the initial use.

Since the oil-based cosmetic of the present invention is stored in a cosmetic container provided with a cosmetic application tool for taking out, it is excellent in ease of removal into the application tool from the initial use. In particular, a dipping container in which the cosmetic application tool is bumped against the cosmetic is more preferable because the amount of the cosmetic remaining in the container after use is small.
With respect to the embodiments described above, the present invention further discloses the following compositions.

<1> The following components (A), (B) and (C):
(A) It has a cellulose skeleton in the main chain, and 45 to 95 mol% of all hydroxyl groups is a group-OM-R (M represents CH ₂ or a carbonyl group C = O, and R is a direct chain having 3 to 40 carbon atoms. 1 to 50% by mass of cellulose derivative substituted with (indicating an alkyl or alkenyl group) of the chain or branched chain,
(B) Volatile hydrocarbon oil 5-80% by mass,
(C) Ester oil liquid at 25 ° C. 5 to 50% by mass
When the mass ratio (B) / (C) of the component (B) to the component (C) is 0.7 to 9 and the shear rate at 25 ° C. is 0.1 s ^-1 , the shear of the entire bulk is carried out. An oil-based cosmetic having a viscosity of 1500 Pa · s or less.

<2> In the cellulose derivative of the component (A), the raw material cellulose derivative is preferably the following constituent unit.

(In the formula, R'indicates a linear or branched alkylene group having 2 to 8 carbon atoms, and n indicates a number in which the average number of moles of R'O added per glucose unit is 0.1 to 10.)
The oil-based cosmetics according to <1>, wherein hydroxyethyl cellulose and hydroxypropyl cellulose are more preferable, and hydroxypropyl cellulose is more preferable.

<3> In the component (A), the R of the group -O-M-R, which is a substituent of the hydroxyl group of the raw material cellulose derivative, is preferably a linear or branched alkyl group or alkenyl group having 9 to 21 carbon atoms. The oily cosmetic according to <1> or <2>, wherein the number of carbon atoms is more preferably 11 to 17, and the number of carbon atoms is more preferably 15.
<4> In the component (A), the group-OMR substitution rate of the hydroxyl group is preferably 48 mol% or more, more preferably 51 mol% or more, preferably 94 mol% or less, and more preferably 92 mol% or less. The oily cosmetic according to any one of <1> to <3>, preferably 66 mol% or less.
<5> In the component (A), the residual ratio of the hydroxyl group is preferably 5 mol% or more, more preferably 6 mol% or more, further preferably 8 mol% or more, still more preferably 34 mol% or more, and 55 mol% or less. The oily cosmetic according to any one of <1> to <4>, wherein 52 mol% or less is more preferable, and 49 mol% or less is further preferable.

<6> The mass average molecular weight of the cellulose derivative of the component (A) is preferably 100,000 or more, more preferably 200,000 or more, further preferably 300,000 or more, further preferably 500,000 or more, and further preferably 5 million. The oily cosmetic according to any one of <1> to <5>, wherein the following is preferable, 4 million or less is more preferable, 3 million or less is further preferable, and 2 million or less is further preferable.
<7> The component (A) is preferably a hydroxypropyl cellulose laurate ester, a hydroxypropyl cellulose myristic acid ester, a hydroxypropyl cellulose palmitic acid ester, a hydroxypropyl cellulose stearic acid ester, or a hydroxypropyl cellulose bechenic acid ester. The oily cosmetic according to any one of <1> to <6>, wherein the hydroxypropyl cellulose palmitic acid ester is more preferable.
<8> The content of the component (A) is preferably 1.5% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and 30% by mass or less in the total composition. The oily cosmetic according to any one of <1> to <7>, preferably 20% by mass or less, more preferably 15% by mass or less, still more preferably 10% by mass or less.

<9> The oily cosmetic according to any one of <1> to <8>, wherein the component (B) preferably has a flash point of 35 to 87 ° C.
<10> The component (B) is preferably a hydrocarbon oil having 8 to 16 carbon atoms, more preferably a hydrocarbon oil having 10 to 16 carbon atoms, and further preferably a hydrocarbon oil having 12 carbon atoms. The oily cosmetic according to any one of 1> to <9>.
<11> The component (B) is preferably an isoparaffin-based hydrocarbon oil, more preferably isododecane and hydrogenated polyisobutene having 12 carbon atoms, and more preferably isododecane, any one of the above <1> to <10>. The listed oily cosmetics.
<12> The content of the component (B) is preferably 35% by mass or more, more preferably 40% by mass or more, further preferably 45% by mass or more, still more preferably 46% by mass or more in the total composition. The oily cosmetic according to any one of <1> to <11>, preferably 75% by mass or less, more preferably 70% by mass or less, and further preferably 66% by mass or less.

<13> The ester oil of the component (C) is preferably an ester oil having a branched chain, isotridecyl isononanoate, diisostearyl malate, isostearyl malistate, octyldodecyl ricinoleate, diglyceryl diisostearate, Glyceryl monomyristearate, 2-ethylhexyl paramethoxysilicate, and diglyceryl monoisostearate are more preferable, and isotridecyl isononanoate and diisostearyl malate are more preferable. Any one of <1> to <12> above. The listed oily cosmetics.
<14> The content of the component (C) is preferably 7% by mass or more, more preferably 10% by mass or more, further preferably 13% by mass or more, and preferably 40% by mass or less in the total composition. The oily cosmetic according to any one of <1> to <13>, wherein 35% by mass or less is more preferable, and 33% by mass or less is further preferable.

<15> The mass ratio (B) / (C) of the component (B) to the component (C) is preferably 1.0 or more, more preferably 1.4 or more, preferably 7 or less, and 5 or less. The oily cosmetic according to any one of <1> to <14>, which is more preferable.
<16> The mass ratio (A) / (C) of the component (A) to the component (C) is preferably 0.10 or more, more preferably 0.12 or more, still more preferably 0.14 or more. , 1.25 or less, more preferably 1.0 or less, still more preferably 0.65 or less. The oily cosmetic according to any one of <1> to <15>.

<17> The oily cosmetic according to any one of <1> to <16>, which further contains (D) an organic silicone resin.
<18> The component (D) is preferably (D-1) trimethylsiloxysilicic acid, which is a compound having a crosslinked structure having a siloxane structure as a main skeleton [(CH ₃ ) ₃ SiO _1/2 ]. The oil-based cosmetic according to <17>, more preferably represented by _X [SiO ₂ ] _Y (X is 1 to 3, Y is 0.5 to 8).
<19> (D-1) trimethylsiloxysilicic acid preferably has a mass average molecular weight of 1000 to 10000, more preferably 2000 to 9000, and even more preferably 3000 to 6000. > The listed oily cosmetics.

<20> The component (D) is preferably (D-2) a fluorine-modified silicone resin, and has a general formula (1).
R ¹ _a SiO _{(4-a) / 2} (1)
(In the formula, R ¹ represents a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group or a general formula −R ² −Rf (R ² represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf is a carbon. a number indicating the 1-8 perfluoroalkyl group), an arbitrarily chosen a hydroxyl group and the general formula -R ² -Rf from the functional groups as an essential, 1.0 ≦ a ≦ 1 a is an average number. 8)
The oil-based cosmetic according to <17>, which is more preferably having a structure represented by.
<21> (D-2) The fluorine-modified silicone resin preferably has a silanol group in the molecule, and the ratio of the OH group in the silanol group is 0.1 to 5% by mass with respect to the resin mass. The oily cosmetic according to <20>, wherein 0.5 to 5% by mass is more preferable.

<22> The content of the component (D) is preferably 0.01% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.5% by mass or more in the total composition. Any of the above <17> to <21>, more preferably mass% or more, preferably 25% by mass or less, more preferably 20% by mass or less, further preferably 15% by mass or less, still more preferably 13% by mass or less. 1 The oily cosmetics described.
<23> The mass ratio (A) / (D) of the component (A) to the component (D) is preferably 0.05 or more, more preferably 0.2 or more, still more preferably 0.3 or more. , 0.5 or more is more preferable, 40 or less is preferable, 20 or less is more preferable, 12 or less is further preferable, and 10 or less is more preferable. The oily cosmetic according to any one of <17> to <22>. ..

<24> Further, a solid wax is contained at 25 ° C., and the wax preferably has a melting point of 65 ° C. or higher and 140 ° C. or lower, more preferably 70 ° C. or higher and 90 ° C. or lower, any of the above <1> to <23>. 1 The oily cosmetics described.
<25> A wax solid at 25 ° C. preferably has a needle insertion degree of 1 or more and 150 or less, more preferably 15 or more and 110 or less, and a needle insertion degree of 1 or more and 150 or less. The oil-based cosmetic according to <24>, wherein microcrystalline wax and paraffin wax are more preferable, and microcrystalline wax having a needle insertion degree of 1 or more and 150 or less is even more preferable.
<26> The content of the wax solid at 25 ° C. is preferably less than 5% by mass, more preferably 3% by mass or less, still more preferably 1% by mass or less, and 0.5% by mass in the total composition. The oily cosmetic according to <24> or <25>, wherein the following is even more preferable.
<27> The oily cosmetic according to any one of <1> to <26>, which further contains a powder, and the powder is preferably an extender pigment, a coloring pigment, or a brilliant pigment.
<28> The content of the powder is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, preferably 20% by mass or less, and more preferably 10% by mass or less in the total composition. The oily cosmetic according to <27>, which is preferable.

<29> When the shear rate at 25 ° C. is 0.1 s ^-1 , the shear viscosity of the entire bulk is preferably 900 Pa · s or less, more preferably 500 Pa · s or less, and 250 Pa · s or less. It is more preferably 200 Pa · s or less, more preferably 10 Pa · s or more, more preferably 20 Pa · s or more, still more preferably 30 Pa · s or more. The oily cosmetic according to any one of <1> to <28>.
<30> The oily cosmetic according to any one of <1> to <29>, which is a lip cosmetic.

<31> Use for applying the oily cosmetic according to any one of <1> to <30> to the lips.
<32> Use of the oily cosmetics according to any one of <1> to <30> for producing oily cosmetics.
<33> Use of the oily cosmetic according to any one of <1> to <30> for applying to the lips using a cosmetic application tool.

Production Example 1 (Production of Cellulose Derivative 1)
Dissolve 94 g (1.01 mol) of 3-methylpyridine in 57.8 g (0.165 mol) of hydroxypropyl cellulose (Cerney M; manufactured by Nippon Soda Co., Ltd.) at 50 ° C. in a mixed solvent of toluene under nitrogen and methyl ethyl ketone. Let me. 85.1 g (0.31 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Then, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified, and dried to obtain a hydroxypropyl cellulose palmitic acid ester. (Mass average molecular weight 1.5 million, average acyl substitution degree is 60 mol% of all hydroxyl groups)

(Measurement of mass average molecular weight)
The average molecular weight (Mw) of the polymer was measured by gel permeation chromatography (GPC) using Hitachi L-6000 type high performance liquid chromatography. The eluent flow path pump used was Hitachi L-6000, the detector used was a Shodex RI SE-61 differential refractive index detector, and the column used was a double-connected GMHHR-H. The sample was adjusted to a concentration of 0.5 g / 100 mL with an eluent, and 20 μL was used. As the eluent, a chloroform solution of 1 mmol / L N, N-dimethyldodecylamine (Farmin DM20, manufactured by Kao Corporation) was used. The column temperature was 40 ° C. and the flow rate was 1.0 mL / min.

(Measurement of average acyl (ester) substitution degree)
In 1 H-NMR, the proton of the methine group next to the carbonyl group of the esterified cellulose appears at around 5 ppm, and the sum of the proton next to the 6-membered ring oxygen of the cellulose and the methylene group next to the hydroxyl group of the cellulose is 3 Appears around 5.5 ppm. It was calculated from the integrated value.

Production Example 2 (Production of Cellulose Derivative 2)
Add 231.2 g (2.46 mol) of 3-methylpyridine to 57.8 g (0.165 mol) of hydroxypropyl cellulose (Celney M; manufactured by Nippon Soda Corporation) at 50 ° C. in a mixed solvent of toluene under nitrogen and methyl ethyl ketone. To dissolve. 122.5 g (0.44 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Then, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified, and dried to obtain a hydroxypropyl cellulose palmitic acid ester. (Mass average molecular weight 1 million, average acyl substitution degree is 80 mol% of all hydroxyl groups)

Production Example 3 (Production of Cellulose Derivative 3)
232.8 g (2.5 mol) of 3-methylpyridine was added to 57.8 g (0.165 mol) of hydroxypropyl cellulose (Celney M; manufactured by Nippon Soda Corporation) at 50 ° C. in a mixed solvent of toluene under nitrogen and methyl ethyl ketone. To dissolve. 30.0 g (1.09 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Then, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified, and dried to obtain a hydroxypropyl cellulose palmitic acid ester. (Mass average molecular weight 870,000, average acyl substitution degree is 90 mol% of all hydroxyl groups)

Production Example 4 (Production of Cellulose Derivative 4)
At room temperature in chloroform under nitrogen, 19.9 grams (0.21 mol) of 3-methylpyridine was added to 5 g (8.3 × 10 ^-6 mol) of hydroxypropyl cellulose (Celney M; manufactured by Nippon Soda Corporation). Dissolve. 20.6 g (0.094 mol) of lauroyl chloride is added dropwise over 0.5 hours. Then, the mixture was reacted at 50 ° C. for 15 hours, precipitated in methanol, purified, and dried to obtain a hydroxypropyl cellulose lauric acid ester. (Mass average molecular weight 800,000, average acyl substitution degree is 90 mol% of all hydroxyl groups)

Production Example 5 (Production of Cellulose Derivative 5)
Dissolve 93.8 g (1 mol) of 3-methylpyridine in 57.8 g (0.165 mol) of hydroxypropyl cellulose (Celney M; manufactured by Nippon Soda Co., Ltd.) at 50 ° C. in a mixed solvent of toluene under nitrogen and methyl ethyl ketone. Let me. 47.6 g (0.17 mol) of palmitoyl chloride is added dropwise over 0.5 hours. Then, the mixture was reacted at 50 ° C. for 5 hours, precipitated in ethanol, purified, and dried to obtain a hydroxypropyl cellulose palmitic acid ester. (Mass average molecular weight 750,000, average acyl substitution degree is 30 mol% of all hydroxyl groups)

Examples 1 to 15, Comparative Examples 1 to 5
The lipsticks with the compositions shown in Table 1 are manufactured, and the shear viscosity of the bulk is measured. At the same time, there is no stiffness immediately after application, no feeling of tension immediately after application, smoothness immediately after application, when the lips are rubbed, and immediately after application. Secondary adhesion to tiles (color difference ΔE), secondary adhesion to tiles 4 hours after application (color difference ΔE), difficulty in color transfer immediately after application, difficulty in color transfer 4 hours after application, application The resistance of the lipstick on the lips after 4 hours, the water resistance immediately after application, and the ease of removing the lipstick were evaluated. The results are also shown in Table 1.

(Production method)
The base raw materials other than the coloring material were heated and dissolved, mixed uniformly, and cooled to 40 ° C. A color material raw material was added thereto, and the mixture was uniformly dispersed with a disperser, defoamed, and then poured into a container to obtain a lipstick.

(Evaluation methods)
(1) Measurement of shear viscosity:
The prepared bulk was measured for shear viscosity at 25 ° C. with a rheometer (MCR301; manufactured by Anton Pearl Co., Ltd.). A jig having a diameter of 25 mm was used, and the shear viscosity at a shear rate of 0.1 s ^-1 was read.

(2) No stiffness immediately after application (sensory evaluation):
Each lipstick was applied to the lips by 10 specialized panelists, and the lack of stiffness after 5 minutes was sensory evaluated. The results were shown by the number of panelists who rated it as good (no stiffness).

(3) No feeling of tension immediately after application (sensory evaluation):
Each lipstick was applied to the lips by 10 specialized panelists, and the lack of tension after 5 minutes was sensory evaluated. The results are shown by the number of panelists who evaluated it as good (no feeling of tension).

(4) Smoothness when lips are rubbed immediately after application (sensory evaluation):
Each lipstick was applied to the lips by 10 specialized panelists, and the smoothness when the lips were rubbed after 5 minutes was sensory evaluated. The results are shown by the number of panelists who rated it as good (smooth).

(5) Secondary adhesion to tiles immediately after application and after 4 hours (color difference ΔE):
An appropriate amount of lipstick was applied to the lips, and after 5 minutes and 4 hours, the lipstick was transferred to a white tile and the colored part was measured. The color difference ΔE from the white tile was obtained by the following equation.
ΔE = (ΔL ² + Δa ² + Δb ² ) ^1/2
-White tiles: Residential pottery tiles (INAX, 10 cm x 10 cm)
The color measurement value of the white tile is L = 93.7, a = 0.86, b = 3.95.
-Colorimeter: Color difference meter CR-300 (manufactured by Minolta)

(6) Difficulty in color transfer immediately after application and after 4 hours (sensory evaluation):
Each lipstick was applied to the lips by 10 specialized panelists, and after 5 minutes and 4 hours, the resistance to color transfer when the lips were attached to the cup was sensory evaluated. The results are shown by the number of panelists who evaluated it as good (difficult to transfer color).

(7) Difficulty of lipstick on the lips 4 hours after application (sensory evaluation):
Each lipstick was applied to the lips by 10 specialized panelists, and after 4 hours, the lipstick on the lips was sensory evaluated for its resistance to twisting. The results are shown by the number of panelists who evaluated it as good (hard to twist).

(8) Water resistance immediately after application (sensory evaluation):
After applying each lipstick to the lips, the difficulty of color transfer when the lips were wet was evaluated.
Each lipstick was applied to the lips by 10 specialized panelists, and after 5 minutes, the water was drunk in a cup containing water at 20 ° C., and the difficulty of color transfer to the cup was sensory evaluated. The results are shown by the number of panelists who evaluated it as good (difficult to transfer color).

(9) Ease of removing lipstick:
Ten specialized panelists applied each lipstick to their lips, and after 4 hours, sensory evaluated the ease of removing the lipstick with a make-up remover (biore make-up remover, cotton moisturizing rich). The results are shown by the number of panelists who evaluated it as good (it can be removed cleanly).

Examples 16-17
Lipsticks having the compositions shown in Tables 2 and 3 were produced in the same manner as in Examples 1 to 15, and the bulk shear viscosity was measured.
All of the obtained lipsticks did not feel stiff or taut immediately after application, were smooth immediately after application and when the lips were rubbed together, and secondary adhesion to the tile immediately after application and 4 hours after application was suppressed, and immediately after application. In addition, the color does not easily transfer 4 hours after application, the lipstick on the lips does not easily get twisted 4 hours after application, the water resistance immediately after application is excellent, and the lipstick can be removed cleanly.

Claims (33)

The following components (A), (B) and (C):
(A) It has a cellulose skeleton in the main chain, and 45 to 95 mol% of all hydroxyl groups is a group-OM-R (M represents CH ₂ or a carbonyl group C = O, and R is a direct chain having 3 to 40 carbon atoms. 1 to 50% by mass of cellulose derivative substituted with (indicating an alkyl or alkenyl group) of the chain or branched chain,
(B) Volatile hydrocarbon oil 5-80% by mass,
(C) Ester oil liquid at 25 ° C. 5 to 50% by mass
When the mass ratio (B) / (C) of the component (B) to the component (C) is 0.7 to 9 and the shear rate at 25 ° C. is 0.1 s ^-1 , the shear of the entire bulk is carried out. An oil-based cosmetic having a viscosity of 1500 Pa · s or less. The oily cosmetic according to claim 1, wherein in the component (A), R is a linear or branched alkyl group or alkenyl group having 9 to 21 carbon atoms. The oily cosmetic according to claim 1 or 2, wherein the residual ratio of hydroxyl groups in the component (A) is 5 to 55 mol%. The oily cosmetic according to any one of claims 1 to 3, wherein the cellulose derivative of the component (A) has a mass average molecular weight of 100,000 or more and 5 million or less. The oily cosmetic according to any one of claims 1 to 4, wherein the component (A) is a hydroxypropyl cellulose palmitic acid ester. The oily cosmetic according to any one of claims 1 to 5, wherein the content of the component (A) is 1.5 to 30% by mass in the total composition. The oily cosmetic according to any one of claims 1 to 6, wherein the component (B) has a flash point of 35 to 87 ° C. The oily cosmetic according to any one of claims 1 to 7, wherein the component (B) is a hydrocarbon oil having 8 to 16 carbon atoms. The oily cosmetic according to any one of claims 1 to 8, wherein the component (B) is isododecane. The oily cosmetic according to any one of claims 1 to 9, wherein the content of the component (B) is 35 to 75% by mass in the total composition. The oily cosmetic according to any one of claims 1 to 10, wherein the ester oil of the component (C) is an ester oil having a branched chain. The ester oil of component (C) is isotridecyl isononanoate, diisostearyl malate, isostearyl myristate, octyldodecyl ricinoleate, diglyceryl diisostearate, glyceryl monomyristate monoisostearate, 2-ethylhexyl paramethoxysilicate. The oily cosmetic according to any one of claims 1 to 11, which is selected from diglyceryl monoisostearate. The oily cosmetic according to any one of claims 1 to 12, wherein the content of the component (C) is 7 to 40% by mass in the total composition. The oily cosmetic according to any one of claims 1 to 13, wherein the mass ratio (B) / (C) of the component (B) to the component (C) is 1.0 to 7. The oily cosmetic according to any one of claims 1 to 14, wherein the mass ratio (A) / (C) of the component (A) to the component (C) is 0.10 to 1.25. The oil-based cosmetic according to any one of claims 1 to 15, further comprising (D) an organic silicone resin of 0.01 to 25% by mass. The component (D) is at least (D-1) trimethylsiloxysilicic acid, which is a compound having a crosslinked structure having a siloxane structure as a main skeleton, and [(CH ₃ ) ₃ SiO _1/2 ] _X [SiO ₂ ] The oily cosmetic according to claim 16, which contains _Y (X is 1 to 3, Y is 0.5 to 8). The oily cosmetic according to claim 17, wherein the component (D-1) trimethylsiloxysilicic acid has a mass average molecular weight of 1000 to 10000. The component (D) is at least (D-2) a fluorine-modified silicone resin, and the general formula (1)
R ¹ _a SiO _{(4-a) / 2} (1)
(In the formula, R ¹ represents a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group or a general formula −R ² −Rf (R ² represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf is a carbon. a number indicating the 1-8 perfluoroalkyl group), an arbitrarily chosen a hydroxyl group and the general formula -R ² -Rf from the functional groups as an essential, 1.0 ≦ a ≦ 1 a is an average number. 8)
The oily cosmetic according to any one of claims 16 to 18, which has a structure represented by. The 19th aspect of claim 19, wherein the component (D-2) fluorine-modified silicone resin has a silanol group in the molecule, and the ratio of the OH group in the silanol group is 0.1 to 5% by mass with respect to the mass of the resin. Oily cosmetics. The oily cosmetic according to any one of claims 16 to 20, wherein the content of the component (D) is 0.2 to 20% by mass in the total composition. The oily cosmetic according to any one of claims 16 to 21, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.05 to 40. The oily cosmetic according to any one of claims 1 to 22, further comprising a solid wax at 25 ° C. The oily cosmetic according to claim 23, wherein the wax solid at 25 ° C. has a melting point of 65 ° C. or higher and 140 ° C. or lower. The oily cosmetic according to claim 23 or 24, wherein the wax solid at 25 ° C. has a needle penetration degree of 1 or more and 150 or less at 25 ° C. The oily cosmetic according to any one of claims 23 to 25, wherein the content of the wax solid at 25 ° C. is less than 5% by mass in the total composition. The oily cosmetic according to any one of claims 1 to 26, further comprising 0.01 to 20% by mass of powder. The oil-based cosmetic according to any one of claims 1 to 27, wherein the shear viscosity of the entire bulk is 10 to 900 Pa · s when the shear rate is 0.1 s ^-1 at 25 ° C. The oil-based cosmetic according to any one of claims 1 to 28, wherein the shear viscosity of the entire bulk is 20 to 500 Pa · s when the shear rate is 0.1 s ^-1 at 25 ° C. The oily cosmetic according to any one of claims 1 to 29, which is a lip cosmetic. Use for applying the oily cosmetic according to any one of claims 1 to 30 to the lips. Use of the oily cosmetics according to any one of claims 1 to 30 for producing oily cosmetics. Use of the oil-based cosmetic according to any one of claims 1 to 30 for applying to the lips using a cosmetic application tool.