TW202320729A - Black solid topical composition - Google Patents

Abstract

The object of the present invention is to provide a black solid topical composition that is black, has gloss (is glossy), and is excellent in stability. The black solid topical composition of the present invention contains (1) 0.02 to 10% by mass of charcoal having a particle size of 0.05 to 0.9[mu]m, (2) 0.1 part by mass or more of at least one selected from the group consisting of fatty acids and polymers thereof for each part by mass of the charcoal, (3) a liquid oil, and (4) a solid oil with a melting point of 40 to 120 DEG C.

Description

Black solid shape composition for external use

The present invention relates to a black solid composition for external use.

At present, there are various external-use compositions such as cleansers, facial cleansers, and lip balms on sale. When choosing a favorite product among various products, not only the effect but also the appearance are important factors. For example, cleansers and facial cleansers can be used to effectively remove dirt due to sebum or dust, makeup attached to the skin, etc., and many solid or liquid cleansers and facial cleansers are known. As an example, a solid oil-based cleansing cosmetic has been reported, which (A) contains 5 to 15 wt. A liquid oil of 35% by mass or more of ester oil, and (C) a solid oil-based cleansing cosmetic containing 5 to 30% by mass of a nonionic surfactant with an HLB value of 5 to 13 in the total amount of the cosmetic, and the cleansing cosmetic It does not drip, has good compatibility with make-up cosmetics, and is excellent in detergency and the like (Patent Document 1).

[Prior Art Literature]

[Patent Document]

[Patent Document 1] Japanese Unexamined Patent Publication No. 2012-206974

As mentioned above, various compositions for external use are known, and the object of the present disclosure is to provide a black solid composition for external use, which is black, glossy (glossy), and has excellent stability.

When the inventors of the present invention made in-depth studies to solve the aforementioned problems, they found that by formulating (1) 0.02 to 10% by mass of charcoal with a particle size of 0.05 to 0.9 μm, (2) 0.1 mass % per 1 mass part of the aforementioned charcoal Parts or more of at least one selected from the group consisting of fatty acids and their polymers, (3) liquid oils, and (4) solid oils with a melting point of 40 to 120°C, can obtain deep black, glossy (glossy) ), and a solid external composition with excellent stability. The present invention has been accomplished based on further studies of such findings. That is, this disclosure includes inventions disclosed below.

Item 1. A black solid composition for external use, which contains (1) 0.02 to 10% by mass of carbon with a particle size of 0.05 to 0.9 μm, and (2) 0.1 mass parts or more of carbons selected from the group consisting of: At least one kind selected from the group consisting of fatty acids and their polymers, (3) liquid oil, and (4) solid oil having a melting point of 40 to 120°C.

Item 2. The black solid composition for external use as described in Item 1, whose L value in the CIELAB color system measured by a spectrocolorimeter is 35 or less.

Item 3. The black solid external composition according to Item 1 or 2, wherein the carbon number of the fatty acid described in the aforementioned component (2) is 14 to 20.

Item 4. The black solid external composition according to any one of Items 1 to 3, wherein the content of the aforementioned component (4) is 2 to 25% by mass.

Item 5. The black solid external composition according to any one of Items 1 to 4, wherein the content of the aforementioned component (3) is 20 to 97% by mass.

By blending the aforementioned (1) to (4), it is possible to provide a solid external composition that is deep black, glossy (glossy), and excellent in stability.

Hereinafter, the implementation forms included in the present disclosure will be described in more detail.

The present disclosure includes a black solid composition for external use, which contains (1) 0.02 to 10% by mass of carbon with a particle size of 0.05 to 0.9 μm, and (2) 0.1 parts by mass or more of a carbon selected from the group consisting of: At least one kind selected from the group consisting of fatty acids and their polymers, (3) liquid oil, and (4) solid oil having a melting point of 40 to 120°C.

The black solid external composition of the present disclosure contains (1) 0.02 to 10% by mass of carbon having a particle size of 0.05 to 0.9 μm. The composition is not limited to this range, and the charcoal is preferably activated carbon, medicinal charcoal, bamboo charcoal, charcoal, etc., more preferably activated carbon, medicinal charcoal, etc. These carbons may be used alone or in combination of two or more.

The particle size of the carbon is not limited to this range, but is preferably 0.08 to 0.8 μm, more preferably 0.1 to 0.7 μm. As described above, this carbon system has powdery carbon with a very small particle size. These powdery carbons may be used alone or in combination of two or more. In addition, the value of the particle diameter in this disclosure is a value based on a volume average particle diameter, and is a value measured by a laser diffraction/scattering method. More specifically, it is a value measured by measuring a wet particle size distribution using a laser diffraction particle size distribution analyzer, and does not represent a primary particle size.

In the black solid composition for external use disclosed herein, the content of carbon with a particle size of 0.05 to 0.9 μm may be in the range of 0.02 to 10% by mass, preferably 0.03 to 5% by mass, more preferably 0.07 to 2% by mass.

The black solid external composition of the present disclosure contains (2) 0.1 parts by mass or more of a fatty acid and a polymer thereof per 1 part by mass of the aforementioned carbon (charcoal with a particle size of 0.05 to 0.9 μm) (hereinafter, also referred to as "fatty acid, etc."). The carbon number of the fatty acid is not limited, preferably 14-20, more preferably 16-18, etc. The fatty acid may be linear or branched, and may be saturated or unsaturated. When it is an unsaturated fatty acid, the number of double bonds between carbons is not limited, and can be, for example, 1 to 4, preferably 1 to 3, more preferably 1 or 2. The fatty acid may have a substituent such as a hydroxyl group, and examples of such a fatty acid include hydroxy fatty acid, and one example thereof includes hydroxystearic acid and the like. The fatty acid polymer may be any of these fatty acid polymers. The degree of polymerization is not limited as long as the effects of the present disclosure can be obtained, and the degree of polymerization (average degree of polymerization) is preferably 1-10, more preferably 2-8.

Although the present disclosure is not limited thereto, preferred examples of fatty acids and their polymers are palmitic acid, stearic acid, isostearic acid, oleic acid, hydroxystearic acid, polyhydroxystearic acid, and the like. A fatty acid and its polymer may be used individually by 1 type, and may use it in combination of 2 or more types. Although not limiting the disclosure, these can be obtained from the market, such as: NAA-142, NAA-173K, NAA-160 (NOF Co., Ltd.), Isostearic Acid EX (Higher Alcohol Industry Co., Ltd. company), oleic acid D-100 (Nippon Chemical Co., Ltd.), 12-hydroxystearic acid (Ito Oil Co., Ltd.), HS OLIGOMER 600 (Nikko Chemical Co., Ltd.), etc.

In the black solid composition for external use disclosed herein, the content of at least one selected from the group consisting of fatty acids and their polymers, as long as it is per 1 part by mass of the aforementioned carbon (particle size 0.05 to 0.9 μm) Carbon) is not limited to 0.1 parts by mass or more, preferably 0.15 to 20 parts by mass, more preferably 0.15 to 10 parts by mass, particularly preferably 0.15 to 5 parts by mass, and more preferably 0.15 to 2 parts by mass.

The black solid composition for external use disclosed herein contains (3) liquid oil. In the present disclosure, the liquid oil refers to liquid oil at normal temperature (25° C.). As for the liquid oil, there is no limitation as long as the effect of the present disclosure can be obtained. Examples include ester oil, hydrocarbon oil, animal and vegetable oil, organosilicon oil (or silicone oil), higher alcohol, etc., and preferred examples are ester oil , animal and vegetable oils, hydrocarbon oils. These liquid oils may be used alone or in combination of two or more.

As such liquid oils, although the present disclosure is not limited, ethylhexyl palmitate, ethylhexyl isopalmitate, isopropyl palmitate, isopropyl myristate, tri(caprylic acid/ Glyceryl caprate, cetyl ethylhexanoate, isotridecyl isononanoate, neopentylthritol tetraethylhexanoate, octyldodecyl myristate, diisostearyl malate Esters, glyceryl tri(ethylhexanoate), cyclohexane-1,4-dicarboxylate diethoxydiethylene glycol and other ester oils; mineral oil, undecane, dodecane, tridecane, liquid Paraffin, liquid isoparaffin, squalane, α-olefin oligomer, polybutene, petroleum jelly and other hydrocarbon oils; olive oil, castor oil, avocado oil and other animal and vegetable oils, safflower oil, soybean oil, camellia oil, corn oil , rapeseed oil, rice bran oil, palm oil, sunflower oil, cottonseed oil, mink oil and other animal and vegetable oils; dimethyl polysiloxane, dimethicone and other silicone oils (chain silicone, cyclic silicone, modified quality organic silicon, etc.); higher alcohols such as lauryl alcohol, oleyl alcohol, isostearyl alcohol, etc. These liquid oils may be used alone or in combination of two or more.

Although not limiting the present disclosure, as for the liquid oil, it is preferable to include at least one or more oils selected from the group consisting of ester oils and hydrocarbon oils, or to contain oils selected from ester oils, hydrocarbon oils, and animal and plant oils. At least one or more of the group consisting of oils. In addition, more preferably, the disclosed black solid composition for external use contains cetyl ethylhexanoate, dodecyl, ethylhexyl palmitate, ethylhexyl isopalmitate, palmitic acid Isopropyl Myristate, Isopropyl Myristate, Tris(Caprylic/Capric) Glyceride, Isotridecane Isononanoate Liquid oil of at least one selected from the group consisting of tetraethylhexanoate, neopentylthritol tetraethylhexanoate, octyldodecyl myristate, and tri(ethylhexanoate) glycerol.

In the black solid composition for external use of the present disclosure, the content of component (3) is not limited as long as the effect of the present disclosure can be obtained, but in this composition, it is preferably 20 to 97% by mass, more preferably 30 to 97% by mass. 95% by mass, more preferably 50 to 90% by mass.

In addition, although the present disclosure is not limited, as an example, in the black solid external composition of the present disclosure, the content of the ester oil as component (3) can be made 17 to 97% by mass, more preferably 28 to 95% by mass %, and more preferably 48 to 90% by mass. In addition, although the present disclosure is not limited, as an example, in the black solid external composition of the present disclosure, when the content of component (3) is 20 to 97% by mass, the content of the ester oil in the composition can be 17 to 97% by mass. As a better example, when the content of component (3) is 50 to 90% by mass, the content of the ester oil in the composition may be 48 to 90% by mass, and the aforementioned numerical range may also be considered etc. and set appropriately.

The black solid composition for external use disclosed herein contains (4) a solid oil with a melting point of 40 to 120°C. The solid oil is not limited as long as it is within this range, but it is preferably a solid oil with a melting point of 50 to 100°C, more preferably a solid oil with a melting point of 60 to 95°C, and particularly preferably a solid oil with a melting point of 65 to 90°C. , more particularly preferably a solid oil with a melting point of 70 to 90°C. This component (4) is a solid at room temperature (25 degreeC) as mentioned above.

The component (4) is not limited as long as the effects of the present disclosure can be obtained, and examples thereof include paraffin wax, polyethylene wax, ethylene/propylene copolymer, microcrystalline paraffin, ozokerite, F-T synthetic wax (Fishertropsh wax), and ozokerite (Ozokerite wax) and other hydrocarbon waxes, candelilla wax, rice wax, beeswax, carnauba wax (Carnauba wax), hydrogenated jojoba oil, hardened oil, silicone wax, higher alcohols, etc. These components may be used alone or in combination of two or more.

Although not limiting the disclosure, component (4) can be obtained from the market, such as MULTI WAX X-445 (Sonneborn), PMWAX82, Hi-Mic-1070 (Nippon Jingwa Co., Ltd.), CireWax80 , CireWax90 (Cirebelle Fine Chemicals Pty Ltd.), Micropoly204 (Micro Powders, Inc.), Sasolwax C80 (Sasol), PERFORMALENE PL, PERFORMALENE 500, PERFORMALENE 655 (NEW PHASE TECHNOLOGIES), NJWax (Nikko Chemical Co., Ltd. 0), NC-1630, Refined Carnauba Wax (Cerarica Co., Ltd.), Beeswax Gold Medal (Miki Chemical Industry Co., Ltd.), etc.

In the black solid composition for external use of the present disclosure, the content of component (4) is not limited as long as the effect of the present disclosure can be obtained, but in this composition, it is preferably 2 to 25% by mass, more preferably 3% by mass. to 15% by mass, and more preferably 4 to 10% by mass.

The black solid composition for external use of the present disclosure may further contain other pharmaceutically or cosmetically acceptable optional components within the range that does not interfere with the effects of the present disclosure. Examples of other components include conventionally known various components that can be used in external preparations such as cleansers and facial cleansers. Examples of such components include silicon dioxide, surfactants (nonionic surfactants, cationic surfactants, anionic surfactants, amphoteric surfactants, etc.), bases, moisturizing ingredients, anti-inflammatory ingredients, Whitening ingredients, fragrances, colorants, cooling agents, antioxidants, preservatives, thickeners, emulsifiers, pH regulators, enzymes, natural extracts such as animal/plant extracts, active ingredients such as vitamins, etc. These components can be suitably selected according to the purpose etc., and can be used individually by 1 type or in combination of 2 or more types, and the compounding quantity can also be determined suitably.

Although the present disclosure is not limited thereto, when silicon dioxide is exemplified as another component, fumed silicon dioxide can be exemplified as silicon dioxide. While not limiting the present disclosure, when describing fumed silica, fumed silica is also referred to as fumed silica (fumed silica). The fine amorphous silicon dioxide may be silicon dioxide treated with hydrophobization treatment such as dimethyldichlorosilane treatment and hexamethyldisilazane treatment known in the past. When deploying fumed silicon dioxide in this disclosure, there is no limitation within the scope of not damaging the effect of this disclosure, but the particle size of fumed silicon dioxide is preferably less than 40nm, more preferably less than 25nm, and more preferably 3 to 15nm. Fumed silica can be obtained from the market, for example, the product name is Aerosil 200 (Aerosil Japan). These may be used individually by 1 type, and may use it in combination of 2 or more types. The particle size refers to the average particle size, and the particle size is in accordance with the measurement method in the trade name Aerosil (Nippon Aerosil). The particle size of fumed silica refers to the average particle size of primary particles.

When the black solid composition for external use disclosed herein contains silicon dioxide, its content is not limited to the extent that the effect of the present disclosure is not impaired, but it can be illustrated. In this composition, it is preferably 0.05 to 10% by mass, more preferably Preferably, it is 0.1 to 8 mass %, More preferably, it is 0.1 to 5 mass %.

In addition, although the present disclosure is not limited, when surfactants are exemplified as other components, surfactants such as nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants can be exemplified. In this disclosure, examples of surfactants are given, preferably nonionic surfactants and anionic surfactants, and more preferably nonionic surfactants. In addition, although it is not limited in this range, as a surfactant, a surfactant having an HLB value of 5 to 13 is preferable, and a surfactant having an HLB value of 6 to 12 is more preferable. HLB (Hydrophile Lypophile Balance) value is a well-known indicator of the balance between hydrophilicity and lipophilicity. Among HLB 0 to 20, it shows that the smaller the HLB, the stronger the lipophilicity, and the larger the HLB, the stronger the hydrophilicity . In the present disclosure, HLB is generally according to Griffin's formula. Any one of these may be used alone, or two or more of them may be used in combination.

Although not limiting the present disclosure, when describing, for example, nonionic surfactants, examples of nonionic surfactants include polyoxyethylene fatty acid glycerides, polyglycerin, and sorbitan sesquioleate.

For example, the fatty acid constituting the polyoxyethylene fatty acid glyceride is not limited to the present disclosure, preferably a fatty acid having 8 to 22 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms. The fatty acid may be a saturated fatty acid or an unsaturated fatty acid. In the case of an unsaturated fatty acid, the number of double bonds between carbons is not limited, and is exemplified as 1-4, preferably 1-3, more preferably 1 or 2. In addition, the fatty acid may be linear or branched.

The fatty acid constituting the polyoxyethylene fatty acid glyceride is not limited to the present disclosure, and caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, Oleic acid, linolenic acid, linolenic acid, behenic acid, etc., and in addition, natural fatty acids of coconut oil fatty acid or palm oil fatty acid containing these fatty acids. These fatty acids may be used individually by 1 type, and may use it in combination of 2 or more types.

The polyoxyethylene group constituting the polyoxyethylene fatty acid glyceride is not limited to the present disclosure, and the example of the average addition mole number of ethylene oxide (EO) is preferably about 5 to 60, more preferably It is about 10 to 40. In addition, the polyoxyethylene fatty acid glyceride only needs to be one in which at least one of 1 to 3 hydroxyl groups in the fatty acid glyceride is bonded to polyethylene glycol ether.

The polyoxyethylene fatty acid glyceride is not limited to the present disclosure, and polyoxyethylene isostearin having the average addition molar number of the aforementioned ethylene oxide (EO) is preferably exemplified, Polyoxyethylene ethyl oleate, polyoxyethylene diisolaurate, etc., more preferably PEG-10 glyceryl triisostearate, PEG-20 glyceryl triisostearate, PEG-10 glyceryl triisostearate, PEG-10 glyceryl isostearate, etc. In this indication, polyoxyethylene fatty acid glyceride may be used individually by 1 type, and may use it in combination of 2 or more types.

When the black solid composition for external use disclosed herein contains a surfactant, its content is not limited as long as it does not hinder the effect of the present disclosure, preferably 1 to 30% by mass, more preferably 3 to 25% by mass, and more preferably 5 to 20% by mass.

Moreover, when the components described in the aforementioned (1) to (4) also correspond to other optional components, in the present disclosure, the components described in the aforementioned (1) to (4) are not included in the optional other components. Therefore, the contents of the components described in (1) to (4) above are not included in the contents shown in the optional components.

Although there is no limitation in this range, the black solid composition for external use disclosed herein preferably contains carbon powder and does not contain black pigments such as carbon black and inorganic pigments (iron oxide, etc.). Moreover, it is preferable that black components other than carbon are not contained substantially.

The black solid composition for external use of the present disclosure contains the aforementioned charcoal with a particle diameter of 0.05 to 0.9 μm, the aforementioned fatty acid, etc., the aforementioned liquid oil, and the aforementioned solid oil of (4).

The black solid external composition disclosed in the present disclosure is not limited in this range, but as an embodiment, it is preferably exemplified as a liquid composition containing the aforementioned (1) charcoal, the aforementioned (2) fatty acid, etc., and the aforementioned (3) Oil, the solid oil of (4) above, and the black solid external composition of silicon dioxide.

The black solid composition for external use disclosed in the present disclosure is not limited in this range, but as one embodiment, it is preferable to exemplify the charcoal of the aforementioned (1), the fatty acid of the aforementioned (2), and the liquid of the aforementioned (3). The black solid external composition of oil, the solid oil of (4) above, and a surfactant.

The black solid composition for external use disclosed in the present disclosure is not limited in this range, but as one embodiment, it is preferable to exemplify the charcoal of the aforementioned (1), the fatty acid of the aforementioned (2), and the liquid of the aforementioned (3). solid oil, the solid oil of (4) above, and at least one black solid external composition selected from the group consisting of silicon dioxide, surfactants, and preservatives (phenoxyethanol, etc.).

The black solid composition for external use disclosed herein can be produced by mixing and solidifying the ingredients described in (1) to (4) and optional other ingredients in the aforementioned amounts in accordance with conventionally known methods. The order of mixing the components described in (1) to (4) and other components is not particularly limited.

Although the present disclosure is not limited, as the production method, a mixture containing the charcoal of the aforementioned (1) and the fatty acid of the aforementioned (2), the liquid oil of the aforementioned (3), and the Manufactured by mixing solid oils. In addition, although the present disclosure is not limited, as the production method, a mixture containing the charcoal of the aforementioned (1), the fatty acid of the aforementioned (2), and the liquid oil of the aforementioned (3), the aforementioned The liquid oil of (3) and the solid oil of said (4) are mixed and manufactured. In addition, although the present disclosure is not limited, as the production method, a mixture containing the charcoal of the above-mentioned (1), the fatty acid of the above-mentioned (2), and the liquid oil of the following (3I), The following (3II) liquid oil is mixed with the above-mentioned solid oil (4) to produce.

Examples of the liquid oil of (3I) include cetyl ethylhexanoate, dodecyl, ethylhexyl palmitate, ethylhexyl isopalmitate, isopropyl palmitate, myristic acid Isopropyl ester, tri(caprylic/capric) glyceride, isotridecyl isononanoate, neopentylthritol tetraethylhexanoate, octyldodecanoate myristate and glycerin (triethylhexanoate ) at least one of the group consisting of esters.

Examples of the liquid oil of (3II) include ethylhexyl palmitate, ethylhexyl isopalmitate, isopropyl palmitate, isopropyl myristate, and tri(caprylic/capric)glycerides. , at least one selected from the group consisting of isotridecyl isononanoate, neopentylitol tetraethylhexanoate, octyldodecyl myristate, and glycerol (triethylhexanoate).

Among these, the mixing order of the aforementioned mixture, the liquid oil of the aforementioned (3) and the solid oil of the aforementioned (4) is not limited, for example, the aforementioned mixture can be mixed with the liquid oil of the aforementioned (3) and then mixed with the aforementioned ( 4) solid oil, the aforementioned mixture can also be mixed with the aforementioned solid oil of (4) and then mixed with the aforementioned liquid oil of (3), or the aforementioned mixture can be mixed with the aforementioned liquid oil containing the aforementioned (3) and the aforementioned (4) The mixture of solid oils can also be mixed with The aforementioned mixture, the liquid oil of the aforementioned (3) and the solid oil of the aforementioned (4) are mixed simultaneously. For example, when the liquid oil of (3I) or (3II) is used as an example of the liquid oil of (3) above, the same description can be made.

In addition, although the present disclosure is not limited, a mixture containing the charcoal of the aforementioned (1), the fatty acid of the aforementioned (2), and the liquid oil of the aforementioned (3) (hereinafter also referred to as a mixture A), the aforementioned (3) ) and the solid oil of the aforementioned (4) are mixed as an example, in the mixture A, it is preferable to exemplify the fatty acid etc. of the aforementioned (2) containing 0.1 to 20 parts by mass, more preferably 0.15 to 10 parts by mass, more preferably 0.15 to 5 parts by mass, and most preferably 0.15 to 2 parts by mass. In addition, although the present disclosure is not limited, at this time, in the mixture A, the liquid oil of the aforementioned (3) preferably contains 0.4 to 40 parts by mass, more preferably 0.8 to 24 parts by mass.

In addition, although the present disclosure is not limited, for example, the amount of the liquid oil of the aforementioned (3) formulated in the aforementioned mixture A is preferably exemplified as 0.05 to 5% by mass in the black solid external composition of the present disclosure The amount is more preferably 0.1 to 3% by mass, and more preferably 0.2 to 1.5% by mass.

The more preferable one among these is exemplified by blending the entire amount of the above-mentioned charcoal in (1) blended in the black solid external composition of the present disclosure into the mixture A. In addition, in this mixture A, as the liquid oil of the above-mentioned (3), preferably, a liquid oil containing the above-mentioned (3I) is exemplified. In addition, when the liquid oil of the aforementioned (3I) is contained in the mixture A as the liquid oil of the aforementioned (3), the mixture A and the liquid oil of the aforementioned (3) are not particularly limited, and a preferred example is The aforementioned liquid oil of (3II) was used. In addition, although the present disclosure is not limited, the total amount of the aforementioned (2) fatty acid and/or the amount of the aforementioned (3I) liquid oil to be formulated in the black solid external composition of the present disclosure can be preferably exemplified. The whole amount is mixed in the mixture A. In addition, although the present disclosure is not limited, in the manufacture of the black solid composition for external use disclosed in the present disclosure, the aforementioned optional other ingredients can be formulated at any stage.

The pH of the black solid external composition of the present disclosure is not limited as long as it has a pH value usable as a skin external preparation or the like.

The black solid composition for external use disclosed herein is such a solid, and does not show fluidity at least at room temperature (25° C.).

According to the black solid-shaped external-use composition disclosed herein, a black solid-shaped external-use composition that is black, glossy (glossy) and excellent in stability can be obtained.

The black solid composition for external use disclosed herein is black, not light black close to gray black. Although not limited to this range, the black of the composition is deep black (intensive blackness), preferably black with an L value of 35 or less in the CIELAB color system measured by a spectrocolorimeter. As in the examples described later, the black color is based on the measurement of SCI (Specular Component Include) in solid external compositions using a colorimeter (spectrophotometer CM-2600d, manufactured by Konica Minolta Co., Ltd., Japan). (including specular reflection light)) and SCE (Specular Component Exclude (except specular reflection light)) to calculate the L value (color difference) of SCI, the value is 35 or less. This measurement is based on the conditions of JIS Z 8722 (2009).

The black solid composition for external use of the present disclosure has gloss (glossy feel). Although not limited to this range, the gloss (glossiness) means that the surface has a glossiness when visually observing the composition. It is preferred to measure SCI and SCE using a color difference meter (same as above) as in the examples described later, and The value calculated from the difference between the respective L values of SCI and SCE is 2 or more, more preferably 2.5 or more.

In addition, the black solid composition for external use disclosed herein has good stability. Stability in the present disclosure refers to inhibiting the precipitation of particles present in the composition. Although not limited to this range, the stability is better. For example, in the examples described later, 50 g of the mixture containing the above-mentioned ingredients is dissolved in a hot water bath at 85 ° C. When the temperature of the composition reaches 80 ° C, the Pour the composition into a 100mL glass and burn In the cup, it was cooled and solidified at room temperature (25°C) for 3 hours, and when it was visually confirmed whether or not there was precipitated charcoal at the bottom of the beaker or to what extent, there was no charcoal precipitation at the bottom of the beaker.

As mentioned above, the black solid external composition disclosed in the present disclosure is black, glossy (glossy), and black solid external composition with excellent stability.

(直徑)轉接器(adapter)，以工作台速度每分鐘30公分(cm)、穿透深度5mm、範圍2 k、測定溫度25℃中測定之值。此外，搯取度(取得感)較佳係例示依照後述實施例之評定中，具有其平均值1.5以上3以下的搯取容易度，更佳係具有2.3以上3以下的搯取容易度。 Also, although this disclosure is not limited, from the viewpoint of further improving usability, as the black solid-shaped external-use composition, it is more preferable to exemplify a black solid-shaped external-use composition having a specific hardness and ease of taking out (feeling of acquisition). Composition. In this case, as in the examples described later, the hardness is preferably in the range of 50 to less than 1,100, more preferably 100 to 1,000, more preferably 150 or more and not more than 1,100, as an example. up to 900. In this disclosure, the rheometer hardness system utilizes Rheometer (FUDOH Rheometer-RTC-3002D, manufactured by LEOC Co., Ltd.), using a flat type 10

(Diameter) Adapter (adapter), the value measured at a table speed of 30 centimeters (cm) per minute, a penetration depth of 5 mm, a range of 2 K, and a measurement temperature of 25 °C. In addition, it is preferable that the degree of extraction (sense of acquisition) has an average value of 1.5 to 3, and more preferably 2.3 to 3 in the evaluation according to the examples described later.

The black solid composition for external use disclosed herein is not limited as far as it can be used on the skin (including scalp, mucous membrane, etc.). As the composition for external use, a cleansing composition, a cleansing composition, etc. that can be used to remove skin dirt including sebum, sweat, dust, pore dirt, foundation, lipstick, sunscreen, etc. are preferred, and more preferably The composition for cleaning is illustrated.

The black solid external composition of the present disclosure may be used on the skin in the same manner as conventionally known external compositions. It is not limited to this range, and as an example, an appropriate amount of the composition may be used as it is, or may be brought into contact with a liquid such as water as necessary, and then applied to the skin. There is no special limitation on the utilization amount or frequency of use of the black solid external composition disclosed in the present disclosure, for example, to remove When used for removing dirt from the skin, it can be used in the same way as conventionally known cleansers or detergents. In addition, after using the composition on the skin, it can be washed off with water, and it can also be used without rinsing and wiping off with cotton or the like.

[Example]

Hereinafter, the present disclosure will be described in more detail by way of examples, but the present disclosure is not limited to these scopes.

Test example 1

1A. Modulation of composition

The components were mixed according to the following Table 1 to prepare a solid composition for external use. Specifically, it is prepared according to the following procedure.

1) Heat the ingredients of A in the table to about 90°C while mixing uniformly to obtain a mixture.

2) Add the mixture obtained by mixing the components of B in the table to the mixture prepared in 1) above, and mix uniformly at 90°C.

3) Add the component C in the table to the mixture thus obtained, and mix uniformly at 90°C.

4) The mixture obtained in the above 3) was directly filled into a jar container (jar container) in a molten state at 70° C. and then cooled to obtain a solid external composition packed in a jar container (Example 1-1 and 1- 2. Comparative examples 1-1 and 1-2).

1B. Evaluation procedures for blackness, gloss and stability

Dissolve 50 g of each solid external composition obtained above in a hot water bath at 85° C., and when the temperature of the composition reaches 80° C., pour 1.5 g of the composition into a metal plate, and heat it at room temperature (25° C.) 3 hours, it was cooled and solidified. Then, blackness and gloss were evaluated using a color difference meter (Spectrophotometer CM-2600d, manufactured by Konica Minolta Co., Ltd., Japan). In the color difference meter, the determination of SCI (Specular Component Include (including specular reflection light)) and SCE (Specular Component Exclude (except specular reflection light)), the blackness is the L value (color difference) of SCI, and the gloss is calculated from the difference between the respective L values of SCI and SCE. Evaluation was performed based on the following criteria.

<blackness>

○: The L value of SCI is 35 or less

×: The L value of SCI is higher than 35

In this evaluation, as long as the L value in the CIELAB color system measured by the spectrocolorimeter is below 35, the blackness can be evaluated as "deep". The larger the value, the lighter the blackness can be evaluated.

<gloss>

○: The difference between the L value of SCI and SCE is 2 or more

×: The difference between the L value of SCI and SCE is less than 2

In this evaluation, if the value is 2 or more, the gloss (glossiness) is high, and the smaller the value, the lower the gloss (glossiness) can be evaluated.

Dissolve 50 g of each solid external composition obtained as described above in a hot water bath at 85° C., and when the temperature of the composition reaches 80° C., pour the composition into a 100 mL glass beaker, and place at room temperature for 3 hours, it was cooled to solidify. Then, it was visually confirmed whether there was any precipitated charcoal at the bottom of the beaker. Evaluation was performed based on the following criteria.

<stability>

○: There is no carbon deposit at the bottom of the beaker

×: Carbon deposits can be seen at the bottom of the beaker

1C. Results

The results are presented in Table 1.

[Table 1]

As shown in Table 1, when using carbon with a particle size of 0.2 μm and 0.5 μm (Examples 1-1, 1-2), the blackness, gloss, and stability were all excellent. On the other hand, if carbon with a particle size of 7 μm or as large as 40 μm is used instead of such small particle size carbon (Comparative Examples 1-1, 1-2), it is surprising that blackness, gloss, No good results were obtained for any aspect of stability. It can be seen that the common point of the carbons used in the examples and comparative examples is black, but by blending carbons with small particle sizes such as 0.2 μm and 0.5 μm, all the blackness, gloss and stability can be obtained. A solid external composition excellent in all aspects. In addition, carbon with a small particle size is more difficult to uniformly disperse than carbon with a large particle size. In addition, although it tends to precipitate easily, a black solid composition with excellent stability can be obtained.

In this test example, 50 g of the prepared solid external composition was dissolved in a hot water bath, and then cured for evaluation. The evaluation results were substantially similar to those of the solid external composition. The following is also the same.

Test example 2

2A. Modulation of composition

Except for using the components shown in Table 2, the components were mixed in the same procedure as in the aforementioned Test Example 1 to obtain solid external compositions packed in cans (Example 2-1, Comparative Examples 2-1 and 2-1). 2).

2B. Evaluation procedures for blackness, gloss and stability

Blackness, gloss and stability were evaluated in the same manner as in Test Example 1.

2C. Results

The results are presented in Table 2.

[Table 2]

As shown in Table 2, when carbon is used, the blackness, gloss and stability are all excellent. On the other hand, when iron oxide or carbon black is used instead of carbon, the effects of blackness, gloss, and stability are all lower than when carbon is used, and a good composition cannot be obtained. It can be seen from this that a solid external composition with good blackness, gloss and stability can be obtained by using charcoal.

Test example 3

3A. Composition preparation and evaluation procedures

According to the following Table 3, each component was fully mixed with a mortar, and 9 g of the obtained mixture was put into a glass spiral tube and stirred until uniform. Next, the thus obtained mixtures (Examples 3-1 to 3-6) were left to stand at room temperature for 6 hours to visually evaluate the state of separation of charcoal. In addition, evaluation of separation was performed based on the following criteria. Also, the diameter of the bottom surface of the spiral tube is about 2 cm, and the aforementioned mixture is filled to a height of 3 cm from the bottom surface.

○: The carbon system is uniformly dispersed, and no separation is observed

Δ: From the upper 1/3 or more layer, a portion with a small amount of charcoal can be seen (settlement of charcoal can be observed).

×: Charcoal is not seen from the upper layer of 1/3 or more (more sedimentation of charcoal is observed)

3B. Results

The results are presented in Table 3.

[table 3]

As shown in Table 3, it can be seen that when polyhydroxystearic acid is used as the fatty acid or its polymer, in addition, even when hydroxystearic acid, palmitic acid, stearic acid, and oleic acid are used instead of polyhydroxystearic acid, it is also possible to use The charcoal was uniformly dispersed, and the charcoal could be stably dispersed (Examples 3-1 to 3-6). From this, it can be seen that even when a fatty acid other than polyhydroxystearic acid or a polymer thereof is used, carbon can be stably dispersed.

In addition, the mixture prepared in this test example 3 can be said to correspond to the mixture B shown in the table of the above-mentioned test example 1 and the like. When the inventors of the present invention explored the black solid composition for external use, they found that the stability of the mixture of B can be said to have a relatively large impact on the stability of the composition. Therefore, in the black solid external composition of the present disclosure, the mixture of B has high stability, which means that high stability can also be obtained in the black solid external composition. In addition, it can be said that such high stability also suppresses variations in components in the composition.

Test example 4

4A. Modulation of Composition

Except for using the ingredients shown in Table 4, the ingredients were mixed in the same procedure as in the aforementioned Test Example 1 to obtain solid external compositions packed in cans (Examples 4-1 to 4-6, Comparative Example 4-6). 1 and 4-2).

4B. Evaluation procedures for blackness, gloss and stability

Blackness, gloss and stability were evaluated in the same manner as in Test Example 1.

4C. Results

The results are presented in Table 4.

[Table 4]

As shown in Table 4, when the blending amount of carbon with a small particle size (particle size: 0.2 μm) is 0.0125% by mass or less in the composition, good results cannot be obtained in at least two items of blackness, gloss, and stability ( Comparative Examples 4-1 and 4-2). On the other hand, when the compounding quantity of this carbon was larger, any one of blackness, gloss, and stability was excellent (Examples 4-1 to 4-6). From this, it can be seen that a solid external composition having good blackness, gloss, and stability can be obtained by blending carbon with a small particle size at a certain ratio or more.

Test example 5

5A. Modulation of Composition

Except for using the components shown in Table 5, the components were mixed in the same procedure as in Test Example 1 above to obtain solid external compositions contained in can containers (Examples 5-1 to 5-4).

5B. Evaluation procedures for blackness, gloss and stability

Blackness, gloss and stability were evaluated in the same manner as in Test Example 1.

5C. Results

The results are presented in Table 5.

[table 5]

As shown in Table 5, in any of Examples 5-1 to 5-4 in which the blending amounts of ethylhexyl palmitate and tri(caprylic acid/capric acid)glyceride were changed, the blackness, gloss, and stability All excellent.

In addition, when the feeling in use was further confirmed in Test Example 5, a good feeling in use was obtained in any composition. Specifically, 5 panelists took out 3 g of the prepared composition, applied the composition on the skin with fingers, and evaluated the ease of application and thickness according to the following evaluation criteria. As a result, the ease of application and the thickness of any composition were ○. In the evaluation, the easiness of smearing and the degree of thickness were compared among the panelists in advance to unify the standard.

<Evaluation criteria for ease of application>

3 points: Easy to apply on the skin

2 points: Slightly difficult to apply on the skin

1 point: Difficult to apply on the skin (difficult to apply without applying force)

The average value obtained from the total scores of five panelists was 1 to less than 1.6, △ was 1.6 to less than 2.4, and ○ was 2.4 to 3.

<Evaluation criteria for thickness>

3 points: feel the thickness

2 points: feels slightly thick

1 point: No thickness can be felt (feel the friction between the skin and the finger, and the composition between the skin and the finger cannot be felt)

The average value obtained from the total scores of five panelists was 1 to less than 1.6, △ was 1.6 to less than 2.4, and ○ was 2.4 to 3.

Test example 6

6A. Modulation of Composition

Except for using the components shown in Table 6, the respective components were mixed in the same procedure as in Test Example 1 above to obtain solid external compositions contained in can containers (Examples 6-1 to 6-3).

6B. Evaluation procedures for hardness and ease of extraction

In this test example, the hardness and easiness of taking out the solid external composition were evaluated according to the following criteria.

<hardness>

(直徑)轉接器(adapter)，以工作台速度每分鐘30公分(cm)、穿透深度5mm、範圍2k、測定溫度25℃中測定(rheometer硬度)。依照下述基準進行評定。 Dissolve 50 g of the solid external composition obtained above in a hot water bath at 85° C., and pour 8 g of the solid external composition into another tank container when the temperature of the solid external composition reaches 80° C. Cool at room temperature (25°C) for 12 hours. The hardness is then measured. The hardness system uses a Rheometer (FUDOH Rheometer RTC-3002D, manufactured by LEOC Co., Ltd.), using a flat type 10

(Diameter) adapter (adapter), measured at a table speed of 30 centimeters (cm) per minute, a penetration depth of 5 mm, a range of 2 k, and a measurement temperature of 25 ° C (rheometer hardness). Evaluation was performed based on the following criteria.

○: The hardness is 150 or more and less than 900

△: Hardness is 50 or more and less than 150, or 900 or more and less than 1,100

×: The hardness is less than 50 or more than 1,100

<Ease of extraction>

According to the following standard evaluation, five panelists took out 3 g of the prepared solid external composition at a time with a spatula, and it was not enough.

3 points: easy to take the right amount (3g)

2 points: It is slightly difficult to take out an appropriate amount due to hard, soft or fluffy texture (loose)

1 point: due to hard, soft or fluffy texture (loose), the right amount cannot be taken out

The average value obtained from the total scores of 5 panelists was 1 or more and less than 1.5, when it was 1.5 or more and less than 2.3, it was △, and when it was 2.3 or more and 3 or less, it was ○.

6C. Results

The results are presented in Table 6.

[Table 6]

As shown in Table 6, the hardness evaluation results of the solid external compositions of Examples 6-1 to 6-3 are all ○. In addition, the solid external compositions of Examples 6-1 to 6-3 are easy to scrape with a spatula, and have a good sense of acquisition. It can be seen that the solid external compositions of Examples 6-1 to 6-3 are moderately hard solids on the surface, and their interiors are also solid and easy to remove. In addition, although not shown in the results, the black solid external compositions of Examples 6-1 to 6-3 have desired blackness, gloss, and stability. In addition, in Examples 6-1 to 6-3, even when the carbon powder with a particle size of 0.7 μm was used for the test, solid-shaped external-use compositions with good hardness and a sense of acquisition were similarly obtained. In addition, at this time, the composition has desired blackness, gloss, and stability.

Test Example 7

7A. Procedures for evaluating composition, hardness, and ease of extraction

In this test example, except changing the content of the solid oil, the same operations as in the aforementioned Example 6-1 were carried out to prepare black solid external compositions (Examples 7-1 and 7-2). The same operation as in Test Example 6 was used to evaluate the hardness and ease of extraction.

7B. Results

The results are presented in Table 7.

[Table 7]

As shown in Table 7, even when the content of the solid oil was changed, a black solid external composition excellent in hardness and ease of extraction could be obtained. In addition, although the results are not shown, similar to Example 6-1, the solid external compositions of Examples 7-1 and 7-2 also have desired blackness, gloss, and stability.

In addition, the black solid external-use composition described in the examples of Test Examples 1, 2 and 4 to 7 above can be said to be a composition that can be used as a cleaning composition or a cleansing composition, although it is not shown in the results , but when used as a cleanser, it can fully wash away sebum, sweat, dust, dirt from pores, foundation, lipstick, sunscreen, etc.

Claims (5)

A black solid composition for external use, which contains (1) 0.02 to 10% by mass of carbon having a particle size of 0.05 to 0.9 μm, (2) 0.1 part by mass or more of at least one kind selected from the group consisting of fatty acids and polymers thereof per 1 part by mass of the aforementioned charcoal, (3) Liquid oils, and (4) Solid oil with a melting point of 40 to 120°C. According to claim 1, the black solid composition for external use has an L value of 35 or less in the CIELAB color system measured by a spectrocolorimeter. The black solid composition for external use according to claim 1 or 2, wherein the carbon number of the fatty acid described in the aforementioned component (2) is 14 to 20. The black solid composition for external use according to any one of claims 1 to 3, wherein the content of the aforementioned component (4) is 2 to 25% by mass. The black solid composition for external use according to any one of Claims 1 to 4, wherein the content of the aforementioned component (3) is 20 to 97% by mass.