JP5651307B2 - Oily cosmetics - Google Patents

Description

  The present invention relates to an oily cosmetic.

Oily cosmetics are cosmetics with oil as a continuous phase, and are applied to the lips and skin to prevent drying and give a smooth feel. Moreover, it can contain a pigment and can be used as makeup cosmetics such as lipsticks, eye shadows, and foundations. Makeup cosmetics are cosmetics that impart color and texture, and their sustainability is also required. Among textures, it is known to use an oil agent having a high refractive index and a high viscosity as a method of giving gloss and sustaining it (for example, Patent Documents 1 to 3).
However, an oil agent having a high refractive index has a problem that it has a high viscosity, causes stickiness, and deteriorates the feeling of use. In order to improve this feeling of use, paste-like oily bases having a high refractive index at room temperature have been studied. However, such oily bases tend to lower gloss and durability of feeling of use.

Japanese Patent Laid-Open No. 9-235210 JP 2000-229816 A JP 2000-297012 A

  An object of the present invention is to provide an oily cosmetic material that has excellent gloss, is non-sticky, has a good feeling of use, and that maintains the gloss and feeling of use.

  By using a specific paste oil together with a specific cellulose derivative and a specific oil, the present inventors have excellent luster, non-stickiness, smoothness and good feeling of use, and the luster and feeling of use are sustained. We found that cosmetics can be obtained.

The present invention includes the following components (A), (B) and (C):
(A) The main chain has a cellulose skeleton, and 67 mol% or more of the total hydroxyl groups are a group —O—M—R (M is CH ₂ or a carbonyl group C═O, and R is a straight chain having 3 to 40 carbon atoms. Or a cellulose derivative substituted with a branched chain alkyl group or alkenyl group) 0.1 to 15% by mass,
(B) 10 to 80% by mass of an ester oil that is liquid at 25 ° C.
(C) One or more paste oil agents selected from dimer acid esters, dimer diol derivatives, cholesterol fatty acid esters, phytosterol fatty acid esters, polyglycerin fatty acid esters and pentaerythritol fatty acid esters 0.5 to 50% by mass
Oil-based cosmetics containing the above are provided.

  The oily cosmetic of the present invention is excellent in gloss and feeling of use, and the gloss and feeling of use are sustained.

The cellulose derivative of the component (A) used in the present invention is not particularly limited as long as it has a cellulose skeleton in the main chain, but the raw material cellulose derivative includes cellulose and short chains such as acetylcellulose and acetylbutylcellulose. Preference is given to cellulose modified with acylated cellulose, hydroxyalkyl groups, glyceryl ether groups, (mono) alkyl glyceryl ether groups. More specifically, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, glyceryl cellulose, methyl glyceryl cellulose and the like can be mentioned.
Furthermore, as a raw material cellulose derivative, what has the following structural units is preferable.

(In the formula, R ′ represents a linear or branched alkylene group having 2 to 8 carbon atoms, and n represents a number with an average added mole number of R′O per glucose unit of 0.1 to 10)

  In the structural unit, R ′ is preferably a linear or branched alkylene group having 2 to 4 carbon atoms, and more preferably an ethylene group or a propylene group. Moreover, as n, the number from which the average added mole number of R′O per glucose unit is 0.3 to 5 is preferable, the number from 0.5 to 4.5 is more preferable, and the number from 1 to 4 is Further preferred.

Preferred examples of the raw material cellulose derivative include hydroxyethyl cellulose and hydroxypropyl cellulose, and hydroxypropyl cellulose is particularly preferable.
Moreover, the weight average molecular weight (Mw) of the raw material cellulose derivative is preferably 10,000 to 4,000,000, more preferably 100,000 to 3,000,000, and still more preferably 500,000 to 200, from the viewpoint of solubility in oil and feel. Ten thousand.

In the group —O—M—R, which is a hydroxyl group substituent of the raw material cellulose derivative, M represents CH ₂ or a carbonyl group C═O, and R represents a linear or branched alkyl group or alkenyl having 3 to 40 carbon atoms. It is a group.
(I) As a linear alkyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, Heptadecyl group, octadecyl group, nonadecyl group, icosyl group, heicosyl group, docosyl group, tricosyl group, tetracosyl group, pentacosyl group, hexacosyl group, heptacosyl group, octacosyl group, nonacosyl group, triacontyl group, hentriacontyl group, dotriacontyl group, Examples include tritriacontyl group, tetratriacontyl group, pentatriacontyl group, hexatriacontyl group, heptatriacontyl group, octatriacontyl group, nonatriacontyl group, tetracontyl group and the like.

(Ii) Examples of branched alkyl groups include methylpentyl, methylhexyl, methylpentyl, methyloctyl, methylnonyl, methylundecyl, methylheptadecyl, ethylhexadecyl, methyloctadecyl, propyl Pentadecyl group, 2-hexyldecyl group, 2-octyldodecyl, 2-heptylundecyl group, 2-decyltetradecyl group, 2-dodecylhexadecyl group, 2-tetradecyloctadecyl group, 2-octadecylbehenyl group, etc. Can be mentioned.

(Iii) Examples of linear alkenyl groups include dodecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl, nonadecenyl, icocenyl, henicocenyl, dococenyl, tricocenyl, tetracocenyl, heptacosenyl, hexacocenyl, heptacocenyl, octacocenyl, etc.
(Iv) Examples of branched alkenyl groups include isotridecenyl, isooctadecenyl, isotriacontenyl, 2-butyloctenyl, 2-hexyldecenyl, 2-octyldodecenyl, 2-decyltetradecenyl, 2- And dodecyl hexadecenyl.

  Among these, a linear alkyl group is preferable from the viewpoint of imparting smoothness during application of the oily cosmetic. Furthermore, from the ease of extending | stretching and the adhesiveness, C9-C21 is preferable, Furthermore, C11-C17, and especially 15 are preferable.

  The group-O-M-R substitution rate of the hydroxyl group is 67 mol% or more, particularly preferably 70 mol% or more, and more preferably 80 mol% or more and 100 mol%. The substitution rate of the group —O—M—R is preferably higher from the viewpoint of increasing the solubility in the oil, but is preferably 90 mol% or less from the viewpoint of moisture feeling and slipperiness. Moreover, it is preferable that the hydroxyl group remains appropriately in terms of no roughness. The preferred hydroxyl group content is 2 to 33 mol%, more preferably 5 to 20 mol%.

The weight-average molecular weight of the component (A) cellulose derivative is preferably 100,000 or more, more preferably 200,000 or more, and preferably 4 million or less, more preferably 3 million or less. In particular, 500,000 to 2,000,000 are preferable from the viewpoint that the solubility and the smooth feel are maintained.
In addition, a weight average molecular weight (Mw) is calculated | required by the gel permeation chromatography (The calibration curve defined using chloroform solvent and the linear polystyrene as a standard, and a refractive index detector) measurement.

Such a cellulose derivative is obtained by reacting a raw material cellulose derivative with an acid halide having a linear or branched alkyl group or alkenyl group having 3 to 40 carbon atoms to replace 67 mol% or more of the total hydroxyl groups of the raw material cellulose derivative. It is manufactured by doing.
A compound 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. The main chain comprising a cellulose skeleton can also be obtained by transesterification (acidolysis) of acetylcellulose. According to this method, a cellulose ester derivative having a very low residual amount of hydroxyl groups can be obtained.

  Specifically, hydroxyethyl cellulose lauric acid ester, hydroxyethyl cellulose myristic acid ester, hydroxyethyl cellulose palmitic acid ester, hydroxyethyl cellulose stearic acid ester, hydroxyethyl cellulose behenic acid ester; hydroxypropyl cellulose lauric acid ester, hydroxypropyl cellulose myristic acid ester, hydroxy Propylcellulose palmitate, hydroxypropylcellulose stearate, hydroxypropylcellulose behenate; hydroxyethylmethylcellulose laurate, hydroxyethylmethylcellulose myristic ester, hydroxyethylmethylcellulose palmitate, hydroxyethyl Cylcellulose stearate, hydroxyethylmethylcellulose behenate; hydroxypropylmethylcellulose laurate, hydroxypropylmethylcellulose myristic acid, hydroxypropylmethylcellulose palmitate, hydroxypropylmethylcellulose stearate, hydroxypropylmethylcellulose behenate It is done. Of these, hydroxyethyl cellulose laurate, hydroxyethyl cellulose myristic acid, hydroxyethyl cellulose palmitate, hydroxyethyl cellulose stearate, and hydroxyethyl cellulose behenate are preferred, and hydroxyethyl cellulose palmitate is particularly preferred.

  One or more cellulose derivatives of component (A) can be used, and from the viewpoint of ease of application to the skin, 0.1-15% by mass is contained in the oily cosmetic of the present invention, and 0.2 It is preferable to contain -5 mass%. If it is this range, the smoothness after application | coating will continue more from the combination with the below-mentioned oil agent.

  Component (B) used in the present invention is an ester oil that is liquid at 25 ° C. Such ester oils are not limited as long as they are used in ordinary cosmetics. For example, octyldodecyl myristate, isopropyl myristate, isopropyl isostearate, isononyl isononanoate, isotridecyl isononanoate, butyl stearate, oleic acid Oleyl, octyldodecyl ricinoleate, neopentyl glycol dicaprate, diisostearyl malate, octyl hydroxystearate, macadamia nut oil, olive oil, castor oil, jojoba oil, avocado oil, sunflower oil, pentaerythrityl tetraoctanoate It is done.

The ester oil of component (B) is a good solvent for the cellulose derivative of component (A) and is suitable for solubilizing component (A). In particular, the branched fatty acid ester is a cellulose derivative of component (A). It is preferable in terms of easy dissolution.
Examples of branched fatty acid esters include isopropyl myristate, isopropyl isostearate, diisostearyl malate, isononyl isononanoate, isotridecyl isononanoate, 2-ethylhexyl palmitate, octyldodecyl myristate, octyldodecyl oleate, octyldodecyl erucate, etc. Can be mentioned. In particular, branched fatty acid branched alcohol esters are preferable, isononyl isononanoate and isotridecyl isononanoate are more preferable, and isotridecyl isononanoate is more preferable.

  One or more ester oils of component (B) can be used. From the viewpoint of the solubility of the cellulose derivative of component (A) and the feeling of use (elongation, familiarity) of the oily cosmetic, 10 to 80% by mass, preferably 20 to 60% by mass.

The component (C) paste oil used in the present invention is at least one oil selected from dimer acid esters, dimer diol derivatives, cholesterol fatty acid esters, phytosterol fatty acid esters, polyglycerin fatty acid esters, and pentaerythritol fatty acid esters.
Since these are a mixture of substances having similar structures or because of the high glass transition temperature due to the polycyclic compounds, they are only partially crystallized, so that they are pasty at 25 ° C. The appearance and properties of solid).

  Examples of dimer acid esters include dimer dilinoleic acid dimer dilinoleyl bis (behenyl / isostearyl / phytosteryl), dimer dilinoleic acid dimer dilinoleyl bis (phytosteryl / isostearyl / cetyl / stearyl / behenyl), and the like. For example, commercially available products such as Plandool-G and Plandool-H (Nippon Seika Co., Ltd.) can be used.

  Examples of the dimer diol derivative include hydroxyalkyl (C12-14) hydroxy dimer linoleyl ether, hydroxyalkyl (C 16-18) hydroxy dimer linoleyl ether, and the like, for example, Supermol LM, Supermol PS (above, Commercial products such as Croda) can be used.

  Examples of cholesterol fatty acid esters include cholesteryl isostearate, cholesteryl hydroxystearate, macadamia nut fatty acid cholesteryl, lanolin fatty acid cholesteryl, and the like, for example, Exepal IS-CE (Kao Corporation), Saracos HS (Nisshin Oilio Co., Ltd.), YOFCO MAC, Commercial products such as YOFCO CLE-S (Nippon Seika Co., Ltd.) can be used.

  Examples of phytosterol fatty acid esters include phytosteryl oleate, dimer dilinoleic acid dimer dilinoleyl bis (behenyl / isostearyl / phytosteryl), dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), macadamia nut oil fatty acid phytosteryl, etc. For example, commercially available products such as Saracos PO (Nisshin Oillio Co., Ltd.), YOFCO MAS, Plandool-G, Plandool-S, Plandool-H (Nippon Seika Co., Ltd.) can be used.

  Examples of the polyglycerin fatty acid ester include macadamia nut oil polyglyceryl, (isostearic acid / behenic acid) (glycerin / polyglyceryl-6) esters, and the like, for example, S face VL-211, VL-212 (above, Sakamoto Pharmaceutical Co., Ltd.) Commercial products such as these can be used.

  Examples of pentaerythritol fatty acid esters include dipentaerythrityl hexahydroxystearate, (hydroxystearic acid / isostearic acid) dipentaerythrityl, (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, and the like. Commercial products such as (Nisshin Oilio Co., Ltd.) can be used.

  As a component (C), the thing whose precipitation start temperature measured by DSC is 20-55 degreeC is preferable, and the thing of 23-45 degreeC is especially preferable. The DSC measurement condition is the peak starting point detected when the temperature is raised to 120 ° C. at 10 ° C./min and held for 10 minutes and then cooled to −50 ° C. at 5 ° C./min.

One or more types of component (C) can be used, and from the viewpoint of imparting gloss and feeling of use, the oily cosmetic of the present invention contains 0.5 to 50% by mass, preferably 3 to 30% by mass.
The mass ratio of the component (A) to the component (C) is (A) / (C) = 0.002 to 100, particularly 0.01 to 50, and more preferably 0.05 to 20 at the time of application. And it is more preferable at the point which does not have stickiness with time.
Furthermore, the mass ratio of the component (B) to the component (C) is (B) / (C) = 0.2 to 160, particularly 0.5 to 30. It is preferable in terms of high gloss.

  The oily cosmetic of the present invention preferably further contains (D) a hydrocarbon oil that is liquid at 25 ° C. Specific examples of such hydrocarbon oils include light isoparaffin, liquid paraffin, liquid isoparaffin, heavy liquid isoparaffin, hydrogenated polyisobutene, hydrogenated polydecene, squalane and the like.

One or more kinds of hydrocarbon oils can be used, and from the viewpoint of the smoothness of the oily cosmetic and the feeling of application, the oily cosmetic of the present invention contains 5 to 60% by mass, particularly 15 to 40% by mass. Is preferred.
Moreover, although the total content of a component (B) and hydrocarbon oil changes also with dosage forms of oily cosmetics, 20-90 mass% is preferable, and 50-90 mass% is especially preferable.

  The oily cosmetic of the present invention can further contain a branched fatty acid, a higher alcohol, and a silicone oil as a feel modifier. Examples of branched fatty acids include those having 10 to 32 carbon atoms such as isononanoic acid and isostearic acid. Examples of higher alcohols include those having 10 to 30 carbon atoms such as lauryl alcohol, isostearyl alcohol, and octyldodecanol. Can be mentioned. Examples of the silicone oil include dimethylpolysiloxane, methylphenylpolysiloxane, dimethylcyclopolysiloxane, and methylhydrogenpolysiloxane.

  Moreover, a wax component can also be contained as a shape-retaining agent. Examples of such wax components include plant waxes such as candelilla wax, rice wax, carnauba wax and tree wax; animal waxes such as beeswax and whale wax; mineral waxes such as montan wax, ozokerite and ceresin; microcrystalline wax Petroleum waxes such as paraffin; hardened castor oil, hydrogenated jojoba oil, 12-hydroxystearic acid, stearamide, phthalic anhydride, silicone wax and other synthetic waxes; lauric acid, myristic acid, palmitic acid, stearic acid, Examples include fatty acids such as behenic acid and lanolin fatty acid.

In addition, extender pigments, colored pigments, pearl pigments and the like can be contained as colorants.
Examples of extender pigments include silicic acid, anhydrous silicic acid, magnesium silicate, talc, sericite, mica, kaolin, clay, bentonite, bismuth oxychloride, zirconium oxide, magnesium oxide, aluminum oxide, calcium sulfate, barium sulfate, Examples thereof include inorganic pigments such as magnesium sulfate, calcium carbonate, and magnesium carbonate, and composite powders thereof.

  Color pigments include titanium oxide, zinc oxide, yellow iron oxide, red iron oxide, metal oxides such as black iron oxide, chromium oxide and chromium hydroxide, metal complexes such as manganese violet and cobalt titanate, and inorganic materials such as carbon black. Examples thereof include organic pigments such as pigments, tar dyes and lake pigments, and natural dyes such as carmine.

  Examples of the pearl pigment include mica, synthetic phlogopite, and glass coated with a colorant such as titanium oxide, iron oxide, silicon oxide, bitumen chromium oxide, carmine, and organic pigment.

  These color materials may be used after being subjected to various surface treatments such as water repellency treatment, water repellency / oil repellency treatment, and the like by ordinary methods.

  Furthermore, the oily cosmetics of the present invention include, in addition to the above-mentioned components, components used in ordinary cosmetics, such as surfactants, alcohols, polyhydric alcohols, polymer compounds, ultraviolet absorbers, antioxidants, dyes, A fragrance | flavor, a pigment | dye, an antifouling agent, a moisturizer, water etc. can be contained.

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

The cosmetic of the present invention exhibits normal stress in viscoelasticity measurement. The normal stress is a stress that acts to spread a surface generated in a direction perpendicular to the step surface when shear is applied to the material. Specifically, the cosmetic is crushed with a spatula in a glass petri dish, and kneaded until there is no lumps. Then, using a rotary viscoelasticity measuring device (for example, MCR-301, manufactured by Anton Paar), the diameter 25mm cone plate (CP25-2), at 30 ° C., when measuring between the shear rate 0.001s ^-1 to 1000 s ^-1 the 19 points equally divided in a logarithmic scale from a low shear rate side, shear rate A first normal stress difference N1 of 10 Pa or more is shown up to 1000 s ⁻¹ . A preferable range of the normal stress is 50 to 10,000 Pa, further 100 to 5000 Pa, particularly 300 to 3000 Pa at 1000 s ⁻¹ . When the normal stress is less than 50 Pa, the moist feeling decreases and the surface tends to feel rough. On the other hand, when the normal stress exceeds 10,000 Pa, the touch may become heavy or stringing may occur.

  The oily cosmetic of the present invention is a cosmetic that is used for skin, lips, eyelashes, nails, and hair, and has an oil agent as a continuous phase. Lip cosmetics such as lipstick, lip gloss, lip liner, makeup cosmetics such as mascara, eyeliner, eye shadow, teak, foundation, concealer, cream, milky lotion, essence, massage agent, deodorant, sunscreen, hair growth Agent, hair color, hair wax, hair foam and the like, and is particularly suitable as a lip cosmetic.

Production Example 1 (Production of cellulose derivative 1)
100 g of pyridine (1.26 mol) was added to and dissolved in 10 g (16.6 × 10 ⁻⁶ mol) of hydroxypropylcellulose (Selney M; manufactured by Nippon Soda Co., Ltd.) at room temperature in chloroform under nitrogen. 50 g (0.172 mol) of palmitoyl chloride was added dropwise over 0.5 hours. Thereafter, the mixture was reacted at 50 ° C. for 15 hours, precipitated in methanol, purified, and dried to obtain hydroxypropylcellulose palmitate. (Weight average molecular weight 870,000, average acyl substitution degree is 85 mol% of all hydroxyl groups)

(Measurement of weight average molecular weight)
The average molecular weight (Mw) of the polymer was measured by gel permeation chromatography (GPC). A differential refraction detector and a column connected to GMHHR-H were used. The sample was adjusted to a concentration of 0.5 g / 100 mL with an eluent, and 20 μL was used. As the eluent, chloroform containing 1 mmol / L dimethyllaurylamine was used. The column temperature was 40 ° C. and the flow rate was 1.0 mL / min.

(Measurement of average acyl (ester) substitution degree)
About 0.5 g of the cellulose derivative was precisely weighed, 4 mL of 5N sodium hydroxide and 25 mL of ethanol were added, and the mixture was refluxed at about 90 ° C. for 5 hours to completely hydrolyze the ester. After adding 30 g of water and refluxing at about 90 ° C. for 5 hours, it was neutralized with phosphoric acid, and it was confirmed with pH test paper that it was completely neutralized. After adding 70 g of tetrahydrofuran and stirring for 30 minutes and allowing to stand at room temperature for 3 hours, the amount of fatty acid was measured for the supernatant using Hitachi L-7000 high performance liquid chromatography. The detector used was Hitachi L-7400 (UV measurement) and measured at a wavelength of 210 nm, and THF: water: phosphoric acid = 60: 39: 1 was used as the eluent.

(Measurement of paste oil starting temperature)
Take 36 mg of the sample, put it in the aluminum cell for DSC (AL70-CAPSULE; Eporide Service) and cover it. A heat capacity analysis was performed using DSC EXSTAR 6100 (Seiko Instruments Inc.) using the same amount of α-alumina as a reference. Once the temperature was raised to 120 ° C. at a speed of 10 ° C./min, the temperature was held for 10 minutes, and when cooling at a rate of 5 ° C./min, the peak of rising was taken as the deposition start temperature.

Example 1 (lipstick)
(component)
(1) Cellulose derivative 1 (Production Example 1) 3.0 (mass%)
(2) Microcrystalline wax (Multiwax W-445, manufactured by SONNEBORN, INC) 3.0
(3) Paraffin (HNP-9, manufactured by Nippon Seiki Co., Ltd.) 5.0
(4) Ceresin (Cerecin # 810 (manufactured by Nikko Rica) 4.0)
(5) Isotridecyl isononanoate 10.0
(6) Neopentyl glycol dicaprate 20.0
(7) Diisostearyl malate 10.0
(8) Jojoba oil 10.0
(9) Squalane 6.0
(10) Hydrogenated polydecene (SILKFLO 364NF (manufactured by LIPO CHEMICALS, INC)) 6.0
(11) Hydrogenated polyisobutene (Pearl Reme 24, manufactured by NOF Corporation) 5.0
(12) Octyldodecanol 5.0
(13) Titanium oxide 1.0
(14) Iron oxide 0.3
(15) Red 201 No. 0.2
(16) Red No. 202 0.4
(17) Blue No.1 Al 0.1
(18) Yellow No. 4 Al 1.0
(19) Dimer dilinoleic acid dimer dilinoleyl bis (behenyl / isostearyl / phytosteryl)
(Plandool-G, manufactured by Nippon Seika Co., Ltd., precipitation starting temperature 28.6 ° C.) 10.0

(Production method)
The base material (other than the coloring material) was heated and melted at 90 ° C. and mixed uniformly. Next, a coloring material raw material was added thereto, and the mixture was uniformly dispersed with a disperser in a heated state, defoamed, and then poured into a mold to obtain a lipstick.

  The obtained lipstick was excellent in ease of stretching at the time of application, gloss immediately after application and with time, and no stickiness immediately after application and with time.

Example 2
A lipstick is obtained in the same manner as in Example 1, except that component (19) is replaced with phytosteryl oleate (Saracos PO (T); Nisshin Oilio Co., Ltd., precipitation starting temperature 26.4 ° C.).
The resulting lipstick is excellent in easiness of spreading at the time of application, gloss immediately after application and over time, and no stickiness immediately after application and over time.

Example 3
A lipstick is obtained in the same manner as in Example 1, except that component (19) is replaced with cholesteryl isostearate (Exepal IS-CE; manufactured by Kao Corporation, precipitation starting temperature: 31.0 ° C.).
The resulting lipstick is excellent in easiness of spreading at the time of application, gloss immediately after application and over time, and no stickiness immediately after application and over time.

Example 4
In the same manner as in Example 1, except that the component (19) is replaced with macadamia nut oil polyglyceryl-6 ester sub behenate (S face VL-211; manufactured by Sakamoto Yakuhin Kogyo Co., Ltd., precipitation starting temperature 41.7 ° C.), lipstick Get.
The resulting lipstick is excellent in easiness of spreading at the time of application, gloss immediately after application and over time, and no stickiness immediately after application and over time.

Example 5
A lipstick is obtained in the same manner as in Example 1, except that component (19) is replaced with dipentaerythrityl hexahydroxystearate (Cosmol 168M; Nisshin Oilio Co., Ltd., precipitation starting temperature 24.3 ° C.).
The resulting lipstick is excellent in easiness of spreading at the time of application, gloss immediately after application and over time, and no stickiness immediately after application and over time.

Claims (4)

The following components (A), (B) and (C):
(A) The main chain has a cellulose skeleton, and 67 mol% or more of all hydroxyl groups are a group —O—M—R (M is CH ₂ or a carbonyl group C═O, and R is a straight chain having 3 to 40 carbon atoms. Or 0.2 to 5 % by mass of a cellulose derivative substituted with a branched chain alkyl group or alkenyl group),
(B) 20-60 % by mass of ester oil which is liquid at 25 ° C.
(C) One or more paste oil agents selected from dimer acid esters, dimer diol derivatives, cholesterol fatty acid esters, phytosterol fatty acid esters, polyglycerin fatty acid esters and pentaerythritol fatty acid esters 3 to 30 % by mass
Containing oily cosmetics.   The oily cosmetic according to claim 1, wherein the component (B) contains a branched fatty acid ester.   The oily cosmetic according to claim 1 or 2, wherein the component (C) has a deposition initiation temperature measured by DSC of 20 to 55 ° C. The oily cosmetic according to any one of claims 1 to 3, wherein a mass ratio of the component (A) to the component (C) is (A) / (C) = 0.01 to 50.