TWI893800B - Oily stick cosmetic and its manufacturing method - Google Patents

Abstract

The present invention aims to provide an oil-based stick cosmetic that exhibits excellent speed, color retention, smooth elongation and diffusion properties, even without a secondary adhesion effect, while also suppressing separation during cosmetic manufacturing and exhibiting excellent demoulding properties during filling. The present invention provides a method for producing an oily stick cosmetic, comprising the following ingredients (A) to (E): (A) wax; (B) a non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm² /s at 25°C; (C) a non-volatile liquid ester oil; (D) a coloring powder; and (E) a polyol. The method comprises steps 1 to 4, wherein the mass ratio of ingredient (B) to ingredient (C) (B/C) is 0.5 to 3.0. Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D). Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition, or (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1, and dispersing it at 30-110°C to obtain a cosmetic composition (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: Heat the cosmetic composition obtained in step 2 at 80-110°C and fill it into a container while stirring. Step 4: Cool the cosmetic composition obtained in step 3 and filled into the container.

Description

Oily stick cosmetic and its manufacturing method

The present invention relates to an oily stick cosmetic and a method for manufacturing the same.

The main effects required of oil-based stick cosmetics include, for example, adding color to lips for a healthy impression, or giving lips a three-dimensional effect for a more beautiful appearance. Furthermore, ease of application is crucial for achieving an ideal makeup mask. The lips are particularly delicate, making them a difficult area for cosmetics to apply, so smooth, easy-to-spread application is crucial. Beyond these qualities, recent efforts to prevent infections have led to the pursuit of a non-sticking effect that increases the ease of donning and doffing masks and prevents cosmetics from physically adhering to other surfaces. Lip cosmetics that quickly exhibit this non-sticking effect after application have become extremely popular. To achieve the effect of no secondary adhesion, after applying lip makeup, separate the silicone oil in the makeup film on the upper layer and apply it on the surface of the makeup film to achieve the effect.

Currently, a lip makeup material has been proposed that comprises a specific combination of hydrogenated polyisobutylene, one or more methylphenyl polysiloxanes that separate when mixed with the hydrogenated polyisobutylene at 25°C, a lipophilic surfactant that does not separate when mixed with either of the two surfactants at 90°C, and wax. The lip makeup material exhibits excellent anti-reattachment properties immediately after application, maintains a long-lasting glossy finish, and exhibits excellent stability (see, for example, Patent Document 1).

A method for stably producing an oily solid cosmetic has been proposed, comprising the steps of combining a first fluid containing one or more solid oily components at 25°C with a second fluid containing one or more components incompatible with the components contained in the first fluid in a vibrating agitation mixing apparatus, or immediately before such apparatus, to obtain a mixed solution containing incompatible or unstable components (see, for example, Patent Document 2). [Prior Art Document] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2011-140481 [Patent Document 2] Japanese Patent Application Publication No. 2015-124204

[Problem to be solved by the invention]

However, in order to maximize the effectiveness of the anti-secondary adhesion effect, increasing the speed of cosmetic film separation can lead to uneven cosmetics, even during the manufacturing process of oily stick cosmetics. Furthermore, achieving both color retention and anti-secondary adhesion can deteriorate the release properties of the stick. Therefore, even while striving for excellent color retention, smooth elongation and diffusion, and the anti-secondary adhesion effect, we seek to develop an oily stick cosmetic that suppresses separation during the cosmetic manufacturing process and offers excellent release properties during filling. For example, the technology in Patent Document 1, while focusing on maintaining quality by combining readily separable oily materials that do not separate, lacks a delay in the secondary adhesion effect and fails to develop an oil-based cosmetic with superior, tangible results. Furthermore, Patent Document 2, while previously addressing the steps of using a vibrating agitation device to match the components contained in a first fluid and a second fluid containing one or more incompatible components, lacks the focus on separating the components from the colorant, nor does it address resolving this issue by adjusting the order of addition of the components with the colorant.

Specifically, the present invention aims to provide a method for producing an oil-based stick cosmetic that exhibits excellent color retention, smooth elongation and diffusion, and a high speed without secondary adhesion, while also suppressing separation during cosmetic manufacturing and providing excellent mold release properties during filling. [Means for Solving the Problem]

In view of the above facts, the inventors have conducted diligent research. As a result, they discovered that an oily stick cosmetic containing wax, a non-volatile silicone oil with a kinematic viscosity of 20-10,000 ^mm² /s at 25°C, a non-volatile liquid ester oil, a coloring powder, and a polyol, with a mass ratio of the non-volatile silicone oil with a kinematic viscosity of 20-10,000 ^mm² /s at 25°C to the non-volatile liquid ester oil being 0.5-3.0, or a method for manufacturing the same using specific steps, exhibits excellent color retention, smooth elongation and diffusion, and a high speed without secondary adhesion. Furthermore, the cosmetic suppresses component separation during the manufacturing process, resulting in excellent mold release properties during filling. This ultimately led to the completion of the present invention.

That is, the present invention provides the following method for producing an oily stick cosmetic. [1] A method for producing an oily stick cosmetic, which contains the following ingredients (A) to (E); (A) wax (B) non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm2 /s at 25°C (C) non-volatile liquid ester oil (D) coloring powder (E) polyol, and the mass ratio (B)/(C) of the aforementioned ingredient (B) to the aforementioned ingredient (C) is 0.5 to 3.0. The method is characterized by comprising the following steps 1 to 4. Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D). Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition, or (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: heating the cosmetic composition obtained in the above step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in the above step 3 and filled into the container. [2] The method for producing an oily stick cosmetic as described in [1], wherein the component (B) is one or more selected from (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. [3] The method for producing an oily stick cosmetic as described in [1] or [2], wherein the content of the component (E) is 0.05-1.5% by mass. [4] The method for producing an oily stick cosmetic as described in [1] or [2], wherein the component (C) comprises (C1) a non-volatile liquid ester oil having a viscosity of less than 1,000 mPa･s at 25°C and (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa･s or more at 25°C. [5] The method for producing an oily stick cosmetic as described in [1] or [2], wherein the component (F) volatile oil is further added to the aforementioned step 1 and/or 2. [6] The method for producing an oily stick cosmetic as described in [1] or [2], wherein the aforementioned step 2 is the aforementioned step (2-1). [7] The method for producing an oily stick-shaped cosmetic as described in [1] or [2], wherein the dispersion treatment in the aforementioned step 2 is a high shear dispersion treatment. [8] The method for producing an oily stick-shaped cosmetic as described in [1] or [2], wherein the container filled with the cosmetic composition in the aforementioned step 3 is a rubber mold or a metal mold.

Furthermore, the present invention provides the following oily stick cosmetic. [9] An oily stick cosmetic comprising the following ingredients (A) to (E); (A) wax (B) non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm2 /s at 25°C (C) non-volatile liquid ester oil (D) coloring powder (E) polyol, wherein the mass ratio (B)/(C) of the aforementioned ingredient (B) to the aforementioned ingredient (C) is 0.5 to 3.0, and is obtained by a manufacturing method comprising the following steps 1 to 4. Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D). Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition, or (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: heating the cosmetic composition obtained in the above step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in the above step 3 and filled into the container. [10] The oily stick cosmetic described in [9], wherein the content of the above component (B) is 25-55% by mass. [11] The oily stick cosmetic described in [9] or [10], wherein the above component (B) comprises (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. [12] The oily stick cosmetic as described in [9] or [10], wherein the component (C) is one or more selected from (C1) a polyglycerol fatty acid ester having a viscosity of less than 1,000 mPa·s at 25°C and (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa·s or more at 25°C. [13] The oily stick cosmetic as described in [9] or [10], wherein the average kinematic viscosity ratio (B1)/(B2) of the component (B1) to the component (B2) is 1 to 250. [14] The oily stick cosmetic as described in [9] or [10], wherein the component (C) comprises one or more selected from (C1) triisostearate polyglyceryl-2 and (C2) (VP/hexadecene) copolymer and dimer dilinoleic acid dimer secondary linolenic acid diisostearate. [15] The oily stick cosmetic as described in [9] or [10], wherein the component (E) is one or more selected from 1,3-butylene glycol, dipropylene glycol, 1,2-hexanediol, glycerin and tripropylene glycol. [16] The oily stick cosmetic as described in [9] or [10], wherein the component (F) further contains a volatile oil. [Effect of the invention]

The present invention can provide an oily stick cosmetic material that has excellent color retention, smooth elongation and diffusion, and no secondary adhesion, inhibits component separation during the manufacturing process, and has excellent demoulding properties during filling.

The preferred embodiments of the present invention are described in detail. However, the present invention is not limited to the preferred embodiments described below and can be freely modified within the scope of the present invention. In this specification, percentages are expressed by mass unless otherwise specified. Furthermore, when "to" is used to express a numerical range in this specification, the range is defined as inclusive.

The melting point in the present invention is defined as the melting point (Tm) as the peak point of the peak observed on the highest temperature side of the melting endotherm curve measured using a differential scanning calorimeter (DSC) after holding a sample at -10°C for 5 minutes under a nitrogen atmosphere and then increasing the temperature at 10°C/minute.

The viscosity (mPa·s) = (CSt: centistokes) at 25°C for this invention is calculated by filling a glass bottle with an outer diameter of 45 mm, an inner diameter of 38 mm, and a height of 82 mm with the test sample to prevent the creation of air spaces, capping the bottle, and placing it overnight in a 25°C thermostat. The viscosity is then measured using a single-cylinder Vismetron (registered trademark) (manufactured by Shibaura Systems Co., Ltd.) (Type B viscometer) at 0.3 to 30 rpm using the included rotating wheels 1 to 4. The measured value is read after one minute and multiplied by the corresponding multiplier. Viscosity indicates how easily an object moves within a fluid. On the other hand, dynamic viscosity (mm ² /s) indicates how easily the fluid itself moves. While this mobility is affected by the density of the object, dynamic viscosity (mm ² /s) = viscosity (mPa·s) / density.

The wax component (A) of the present invention is not limited to animal, plant, or synthetic origins, as long as it is used in common cosmetics. Any wax can be used. For example, there can be mentioned hydrocarbon waxes (A1) such as polyethylene wax, stone wax, pure ceresin, ceresin, microcrystalline wax, hydrogenated microcrystalline wax, Fischer-Tropsch wax, (ethylene/propylene) copolymer, and synthetic wax; wax esters (A2) such as hard lanolin, carnauba wax, honey wax, stearyl stearate, lignite wax, hydrogenated jojoba oil, behenyl behenate, candlewood wax, sunflower seed wax, and rice bran wax; and silicone waxes such as long-chain alkoxy-modified polysiloxanes and long-chain alkyl-modified polysiloxanes (e.g., stearyl dimethicone). One or more of these can be used in combination. From the perspectives of mold release during filling, color retention, preventing separation during the manufacturing process, and increasing speed without secondary adhesion, it is better to use both hydrocarbon wax (A1) and wax ester (A2).

Among component (A) of the present invention, from the perspective of mold release and smooth elongation and diffusion during filling, the hydrocarbon wax (A1) is preferably polyethylene wax, stone wax, synthetic wax, or the like. Furthermore, the melting point of (A1) is preferably 65°C or higher, more preferably 80°C or higher, and even more preferably 90°C or higher. Furthermore, from the perspective of mold release and smooth elongation and diffusion during filling, the wax ester (A2) is preferably candelabra wax, carnauba wax, or honey wax, more preferably candelabra wax or carnauba wax, and even more preferably candelabra wax.

When (A1) and (A2) are used together as component (A), the mass ratio of (A1) to (A2), (A1)/(A2), is preferably 0.2 or greater, more preferably 1 or greater, and even more preferably 4 or greater as the lower limit. The upper limit is preferably 40 or less, more preferably 15 or less, and even more preferably 8 or less. The range is preferably 0.2 to 40, more preferably 1 to 15, and even more preferably 4 to 8. This range is particularly advantageous from the perspectives of color retention and preventing separation of the components during the process.

The content of component (A) in the present invention is preferably 3% by mass (hereinafter referred to as %) or more, more preferably 4.5% or more, and even more preferably 5% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 12% or less, more preferably 9% or less, and even more preferably 8% or less. The range is preferably 3-12%, more preferably 4.5-9%, and even more preferably 5-8%. Within this range, mold release during filling, smooth elongation and diffusion, speed without secondary adhesion, and color retention are particularly advantageous.

The non-volatile silicone oil (B) used in the present invention, having a kinematic viscosity of 20 to 10,000 ^{mm 2} /s at 25°C, is any non-solid silicone oil commonly used in cosmetics at room temperature, regardless of its preparation method, degree of polymerization, or whether it is a mixture. For example, chain silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane, high molecular weight silicones such as amino-modified silicones and highly polymerized dimethylpolysiloxane, polyether-modified silicones such as polyoxyethylene-modified organic silicones and polyoxyethylene-polyoxypropylene-modified organic silicones, amino-modified silicones such as polydimethylsiloxane (Amodimethicone), and modified silicones such as fatty acid-modified silicones, higher alcohol-modified silicones, and alkyl-modified silicones can be listed. As component (B), one or more of these can be appropriately selected and used.

While the non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm² /s at 25°C as component (B) of the present invention is not particularly limited, from the perspectives of mold release during filling, color retention, preventing separation during the manufacturing process, and increasing the speed without secondary adhesion, it is preferred to use (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane in combination. Examples of (B1) include trimethylsiloxyphenyl dimethicone, trimethyl pentaphenyl trisiloxane, diphenyl dimethicone, phenyl trimethicone, and diphenylsiloxyphenyl trimethicone. Among these, from the perspective of mold release properties during filling and speed without secondary adhesion, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, and phenyl trimethicone are preferred, with diphenyl dimethicone and trimethylsiloxyphenyl dimethicone more preferred, and diphenyl dimethicone even more preferred. Furthermore, from the perspective of speed without secondary adhesion, color retention, and smooth elongation and diffusion, the kinematic viscosity is 10,000 ^mm² /s or less, more preferably 1,000 ^mm² /s or less, and even more preferably 50 ^mm² /s or less.

When (B1) and (B2) are used together as component (B), the mass ratio of (B1) to (B2) (B1)/(B2) is preferably 1 or greater, more preferably 2 or greater, and even more preferably 3 or greater, as the lower limit. The upper limit is preferably 10 or less, more preferably 6 or less, and even more preferably 5 or less. The range is preferably 1-10, more preferably 2-6, and even more preferably 3-5. Within this range, mold release during filling, speed without secondary adhesion, and prevention of separation during the manufacturing process are particularly advantageous. The average kinematic viscosity ratio (B1)/(B2) of (B1) to (B2) contained in component (B) used in the present invention is not particularly limited, but the lower limit is preferably 1 or greater, more preferably 3 or greater, and even more preferably 20 or greater. The upper limit is preferably 250 or less, more preferably 200 or less, and even more preferably 100 or less. The range is preferably 1 to 250, more preferably 3 to 200, and even more preferably 20 to 100. Within this range, it is more preferable from the perspective of speed without a secondary adhesion effect. In this specification, the average kinematic viscosity ratio (B1)/(B2) refers to the ratio of the kinematic viscosity of (B1) multiplied by the content of (B1) in the cosmetic composition to the kinematic viscosity of (B2) multiplied by the content of (B2) in the cosmetic composition.

The content of component (B) in the present invention is preferably 25% or more, more preferably 35% or more, and even more preferably 40% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 55% or less, more preferably 47% or less, and even more preferably 45% or less. The range is preferably 25-55%, more preferably 35-47%, and even more preferably 40-45%. This range of 40-45% is particularly effective in terms of mold release during filling, smooth elongation and diffusion, speed without secondary adhesion, and color retention.

The mass ratio (A)/(B) of component (A) to component (B) used in the present invention is preferably 0.07 or greater, more preferably 0.1 or greater, and even more preferably 0.12 or greater. The upper limit is preferably 0.29 or less, more preferably 0.22 or less, and even more preferably 0.2 or less. The range is 0.07-0.29, more preferably 0.1-0.22, and even more preferably 0.12-0.2. Within this range, mold release during filling, smooth elongation and diffusion, speed without secondary adhesion, and color retention are particularly advantageous.

The mass ratio (B1)/(A2) of component (B1) to component (A2) used in the present invention is preferably 5 or more, more preferably 10 or more, and even more preferably 17 or more. The upper limit is preferably 340 or less, more preferably 70 or less, and even more preferably 42 or less. The range is 5 to 340, more preferably 10 to 70, and even more preferably 17 to 42. This range is more preferable in terms of speed without secondary adhesion effect, smooth elongation and diffusion, and mold release properties during filling.

The non-volatile liquid ester oil used in the present invention as component (C) is not particularly limited as long as it is a non-solid liquid or paste-like oil commonly used in cosmetics at room temperature. Regardless of the preparation method, degree of polymerization, or whether it is a mixture, examples include esters of fatty acids and alcohols, esters of fatty acids and polyols, esters of the carboxyl groups of amino acids and alcohols, and diesters of dimer acids and/or dimer diols. While the non-volatile liquid ester oil component (C) of the present invention is not particularly limited, it is preferably a combination of (C1) a non-volatile liquid ester oil with a viscosity of less than 1,000 mPa·s and (C2) a non-volatile liquid ester oil with a viscosity of 1,000 mPa·s or greater. From the perspectives of mold release during filling, color retention, preventing separation during the manufacturing process, speed increase without secondary adhesion, and smooth elongation and diffusion, (C2) is more preferably a non-volatile liquid ester oil with a viscosity of 10,000 mPa·s or greater.

In the present invention, the component (C) non-volatile liquid ester oil, specifically, as the non-volatile liquid ester oil (C1) having a viscosity of less than 1,000 mPa·s, ester oils of ester-bonded fatty acids and alcohols include isopropyl palmitate, isopropyl myristate, isopropyl stearate, isobutyl stearate, 2-ethylhexyl stearate, Esters include isopropyl isostearate, butyl isostearate, decyl isostearate, lauryl isostearate, isodecyl isodecanoate, isodecyl isonanoate, isotridecyl isononanoate, isononyl isononanoate, diethyl sebacate, cetyl 2-ethylhexanoate, ethylhexyl palmitate, octyldodecyl myristate, oleyl oleate, ethyl oleate, etc. Esters of ester-bonded fatty acids and polyols include neopentyl glycol dicaprylate, propylene glycol dicaprate, propylene glycol dicaprylate, glyceryl tri-2-ethylhexanoate, polyglyceryl-2 monoisostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, and polyglyceryl-2 tetraisostearate. Among these, from the perspective of smooth elongation and diffusion and the speed without secondary adhesion effects, (C1) is preferably a polyglyceryl fatty acid ester having 1 to 10 fatty acid bonds, more preferably 2 to 4 fatty acid bonds, and even more preferably 2 to 3 fatty acid bonds. Specific examples include polyglyceryl-2 monoisostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, and polyglyceryl-2 tetraisostearate. (C2) Non-volatile liquid ester oils with a viscosity of 1,000 mPa·s or greater include, as ester oils of fatty acids and alcohols with ester bonds, diisostearyl apple acid, and as ester oils of fatty acids and polyols with ester bonds, pentaerythritol fatty acid esters such as dipentaerythritol pentaisostearate, dipentaerythritol hexa(behenic acid/benzoic acid/ethylhexanoic acid), and dipentaerythritol hexa(hydroxystearic acid/stearic acid/rosin acid). Furthermore, as an oily agent of a copolymer of a vinyl compound having an amide group and a vinyl compound having an alkyl group, specifically, a (VP/hexadecene) copolymer can be exemplified. Specific examples of ester oils formed by ester-bonding the carboxyl group of an amino acid with an alcohol include N-lauryl-glutamine di(phytosterol ester/2-octyldodecyl ester), N-lauryl-glutamine di(phytosterol ester/docosyl ester/2-octyldodecyl ester), N-lauryl-glutamine di(cholesterol ester/2-octyldodecyl ester), N-lauryl-glutamine di(cholesterol ester/docosyl ester/2-octyldodecyl ester), and N-lauryl-sarcosine-isopropyl. Diesters of dimer acids and/or dimer diols include diesters of dimer acids with various alcohols obtained by dimerizing mono- or di-unsaturated fatty acids and then adding hydrogen if necessary, diesters of dimer diols with various fatty acids obtained by further reducing the dimer acids, and esters of dimer acids and dimer diols. Examples include dimer dilinoleic acid di(phytosteryl ester/isostearyl ester/cetyl ester/stearyl ester/behenyl ester), dimer dilinoleic acid di(isostearyl ester/phytosteryl ester), dimer dilinoleic acid dilinoleyl ester, and diisostearyl dimer dilinoleyl ester. Among them, component (C2) is preferably a non-volatile liquid ester oil with a viscosity of 10,000 mPa·s or greater, and more preferably a copolymer of a vinyl compound having an amide group and a vinyl compound having an alkyl group, or an ester of a dimer acid and a dimer diol.

The viscosity of (C1) in component (C) of the present invention is preferably less than 50 to 1,000 mPa·s, more preferably 50 to 750 mPa·s, and even more preferably 50 to 600 mPa·s, from the perspectives of achieving a high speed without secondary adhesion, preventing separation during the manufacturing process, and ensuring smooth elongation and diffusion. Furthermore, the viscosity of (C2) in component (C) of the present invention is preferably 10,000 to 15,000 mPa·s, from the perspectives of achieving a high speed without secondary adhesion, maintaining color retention, and preventing separation during the component step.

When (C1) and (C2) are used together as component (C), the mass ratio of (C1) to (C2), (C1)/(C2), is preferably 0.1 or greater, more preferably 0.2 or greater, and even more preferably 0.3 or greater as the lower limit. The upper limit is preferably 1.4 or less, more preferably 0.85 or less, and even more preferably 0.7 or less. The range is preferably 0.1-1.4, more preferably 0.2-0.85, and even more preferably 0.3-0.7. Within this range, mold release during filling, speed without secondary adhesion, color retention, and prevention of separation of the components during the step are particularly advantageous. The content of component (C) in the present invention is preferably 15% or more, more preferably 22% or more, and even more preferably 25% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 42% or less, more preferably 38% or less, and even more preferably 36% or less. The range is preferably 15-42%, more preferably 22-38%, and even more preferably 25-36%. This range is particularly advantageous in terms of speed and color retention without a secondary adhesion effect.

The mass ratio (B)/(C) of component (B) used in the present invention relative to component (C) is 0.5 or greater, preferably 1 or greater, more preferably 1.2 or greater, and even more preferably 1.3 or greater. The upper limit is 3.0 or less, preferably 2.8 or less, and even more preferably 2.1 or less. It is even more preferably 1.8 or less. The range is 0.5 to 3.0, preferably 1 to 2.8, more preferably 1.2 to 2.1, and even more preferably 1.3 to 1.8. Within this range, mold release during filling, smooth elongation and diffusion, speed without secondary adhesion, and color retention are even better.

The mass ratio of the combined content of components (A) and (C) relative to component (B) used in the present invention, [(A) + (C)] / (B), is preferably 0.5 or greater, more preferably 0.6 or greater, and even more preferably 0.7 or greater. The upper limit is preferably 2.3 or less, more preferably 1.3 or less, and even more preferably 1 or less. The range is preferably 0.5 to 2.3, more preferably 0.6 to 1.3, and even more preferably 0.7 to 1.0. Within this range, color retention and mold release properties are even better.

The coloring powder of component (D) used in the present invention may be any powder commonly used in cosmetics, whether inorganic or organic, and the hue is not particularly limited. For example, metal oxides such as titanium oxide, zinc oxide, calcium oxide, iron oxide, titanium and titanium oxide sinter, chromium oxide, chromium hydroxide, cyan, ultramarine, etc.; organic pigment powders such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, Yellow No. 401, Black No. 401, Brown No. 201, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 203, Blue No. 205, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Green No. 401, Green No. 4 Organic pigments such as zirconium, barium or aluminum pigments such as Yellow No. 02, Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Yellow No. 402, Yellow No. 403 (1), Yellow No. 406, Yellow No. 407, Orange No. 205, Orange No. 402, Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 227, Red No. 230 (1), Red No. 231, Red No. 401, Red No. 502, Red No. 503, Red No. 504, and Red No. 506. In addition, talc, mica, sericite, silicic anhydride, synthetic phlogopite, kaolin, silicon carbide, bentonite, smectite, aluminum oxide, magnesium oxide, zirconium oxide, antimony oxide, diatomaceous earth, glass powder, aluminum silicate, aluminum magnesium metasilicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, barium sulfate and other white inorganic powders, polyethylene resins, polyester resins, fluorine resins, cellulose resins Resins, copolymer resins such as styrene-acrylic copolymers, polypropylene resins, organic polymer resin powders such as nylon powders, metal soap powders, organic low-molecular-weight powders such as N-acyl lysine, starch powders such as acrylic acid starch and rice starch, silk powder, cellulose powder, natural organic powders such as dextrin powder, polysilicone powder, polymethyl methacrylate powder, polystyrene powder, and urethane powder are preferred. Among these, metal oxides or organic pigments are preferred, with iron oxide, Red 202, and Red 201 being particularly preferred. From the perspective of color retention, Red 202 is more preferred. Furthermore, from the perspective of smooth elongation, diffusion, and color retention, white inorganic powders and natural organic powders are preferred. Among white inorganic powders, silicic anhydride, calcium carbonate, mica, sericite, synthetic phlogopite, and barium sulfate are particularly preferred. Among natural organic powders, cellulose powder and starch powder are particularly preferred. In addition, the coloring powder (component (D)) used in the present invention can be surface-treated with commonly known treatment agents such as phospholipids, amino acids, amino acid derivatives, ceramides, dextrin derivatives, polysilicone compounds, fatty acid metal salts, fluorine compounds, and surfactants before use.

The content of component (D) in the present invention is preferably 0.01% or more, more preferably 1.25% or more, and even more preferably 1.5% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 10% or less, more preferably 6% or less, and even more preferably 3% or less. The range is preferably 0.01-10%, more preferably 1.25-6%, and even more preferably 1.5-3%. Within this range, smooth elongation and diffusion, a speed without secondary adhesion, color retention, and preventing separation during the manufacturing process are particularly advantageous.

The mass ratio (C)/(D) of component (C) to component (D) used in the present invention is preferably 3 or more, more preferably 7 or more, and even more preferably 11 or more. The upper limit is preferably 32 or less, more preferably 25 or less, and even more preferably 20 or less. The range is 3 to 32, more preferably 7 to 25, and even more preferably 11 to 20. This range is more preferable in terms of color retention.

The mass ratio of component (C2) to component (D) used in the present invention, (C2)/(D), is preferably 1.0 or greater, more preferably 2.5 or greater, and even more preferably 3 or greater. The upper limit is preferably 20 or less, more preferably 10 or less, and even more preferably 7 or less. The range is 1.0 to 20, more preferably 2.5 to 10, and even more preferably 3 to 7. This range is particularly advantageous in terms of color retention and preventing segregation during the manufacturing process.

The polyol of component (E) used in the present invention is a diol having a structure with two or more hydroxyl groups in the molecule, and more preferably a diol having 3 to 12 carbon atoms. Although not particularly limited, for use in general cosmetics, examples thereof include methylene glycol, glycol (ethylene glycol), propylene glycol, propane diol (1,3-propane diol), diethylene glycol, methylene propane diol, 1,2-butane diol, 1,3-butane diol, 1,4-butane diol, 2,3-butane diol, 1,2-pentane diol, 1,3-pentane diol, 1,4-pentane diol, 1,5-pentane diol, 2,4-pentane diol, 1,2- Examples include cyclopentanediol, 1,3-cyclopentanediol, neopentyl glycol, isopentyl glycol, aminoethylpropanediol, 1,2-hexanediol, 1,6-hexanediol, triethylene glycol, dipropylene glycol, butoxydiglycol, tripropylene glycol, ethylhexanediol, butylethylpropanediol, 1,10-decanediol, glycerol, trihydroxymethylethane, trihydroxymethylbutane, 1,2,6-hexanetriol, phytantriol, sorbitol, erythritol, pentaerythritol, diglycerol, and polyglycerol. Examples also include polyoxyethylene methyl glucoside, polyethylene glycol, and polyglycerol. In particular, when glycol contains a polyethylene glycol chain, a degree of polymerization of 20 or less is preferred, but this is not particularly limited. In the case of polyglycerol, a degree of polymerization of 3 to 10 is preferred, but is not particularly limited.

Although component (E) used in the present invention is not particularly limited, preferred are 1,3-butanediol, dipropylene glycol, 1,2-hexanediol, glycerin, and tripropylene glycol, more preferred are dipropylene glycol and 1,2-hexanediol, and even more preferred is dipropylene glycol.

The content of ingredient (E) used in the present invention is preferably 0.05% or more, more preferably 0.2% or more, and even more preferably 0.25% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 1.5% or less, more preferably 0.8% or less, and even more preferably 0.5% or less. The range is preferably 0.05-1.5%, more preferably 0.2-0.8%, and even more preferably 0.25-0.5%. This range is particularly advantageous in terms of speed and color retention, as it eliminates secondary adhesion.

Furthermore, in the present invention, it is preferred to use volatile oil as component (F). Volatile oils are considered volatile at 1 atmosphere at 25°C. As long as they are commonly used in cosmetics, there are no particular limitations. Specifically, examples of volatile hydrocarbon oils include light-weight fluid isocyanate waxes and volatile silicone oils such as decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, methyltrimethicone, dimethylpolysiloxane, decamethyltetrasiloxane, and ethyltrisiloxane. The use of light-weight fluid isocyanate wax is not limited to the solubility standard. Commercially available light-weight fluid isocyanate waxes include ISOPAR H (manufactured by ESO Chemical Co., Ltd.), isododecane (manufactured by Bayer AG), isohexadecane (manufactured by Uniqema), IP solvent 1620MU, IP solvent 2028MU, and IP solvent 2835 (all manufactured by Idemitsu Kosan Co., Ltd.). Examples of decamethylcyclopentasiloxane include TFS405 (manufactured by Toshiba Silicones Co., Ltd.), SH245, DC345 (manufactured by Toray Dow Corning Co., Ltd.), and KF-995 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of trimethicone include TMF-1.5 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of methyl polysiloxane include KF-96L-2CS (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of decamethyltetrasiloxane include KF-96L-1.5CS (manufactured by Shin-Etsu Chemical Co., Ltd.).

Although component (F) used in the present invention is not particularly limited, from the perspectives of speed without secondary adhesion effect and color retention, volatile hydrocarbon oil is preferred, and light fluid isocyanate wax is more preferred.

The content of ingredient (F) used in the present invention is preferably 1% or more, more preferably 2% or more, and even more preferably 4% or more, relative to the total amount of the oil-based stick cosmetic. The upper limit is preferably 15% or less, more preferably 12% or less, and even more preferably 10% or less. The range is preferably 1-15%, more preferably 2-12%, and even more preferably 4-10%. This range is particularly advantageous in terms of smooth elongation and diffusion, color retention, and preventing separation during the manufacturing process.

From the perspective of color retention and smooth elongation and diffusion, the present invention preferably contains one or more resins selected from resins having a plant-derived skeleton and plant-extracted resins as component (G). Although not particularly limited, examples include dextrin-based resins such as isostearic acid dextrin, which are derived from plant-derived matrices; plant-extracted resins derived from plant-derived resins, such as tamarisk resin and carnauba wax extract resin; and oil-soluble resins such as one or more can be used. Commercially available products include tamarisk resins E-1 and E-2 (manufactured by Japan Natural Products Co., Ltd.), TOWAX-1B4 (manufactured by Toa Chemical Co., Ltd.), and UNIFILMA HVY (manufactured by Chiba Flour Milling Co., Ltd.).

While the content of ingredient (G) that can be used in the present invention is not particularly limited, it is preferably 0.1% or more, more preferably 0.3% or more, and even more preferably 0.5% or more relative to the total amount of the oil-based stick cosmetic. Furthermore, it is preferably 30% or less, more preferably 20% or less, and even more preferably 8% or less. Furthermore, it is preferably 0.1-30%, more preferably 0.3-20%, and even more preferably 0.5-8%. This range is preferred because it provides excellent color retention and smooth, elongated, and diffused properties.

The oil-based stick cosmetic of the present invention may contain, in addition to the aforementioned components (A) to (G), ingredients commonly used in cosmetics, such as oil-based components other than the aforementioned components (B), (C), and (F), surfactants, fibers, alcohols, oil-based curing agents other than the aforementioned component (A), water-soluble polymers, film-forming agents via resins other than (G), aqueous components such as moisturizers other than component (E), sugars, antioxidants, defoaming agents, cosmetic ingredients, preservatives other than component (E), and fragrances, insofar as the effects of the present invention are not impaired.

The oil-based stick cosmetic of the present invention can be produced using the following method. Specifically, the method includes dissolving component (A) at a temperature above its melting point. While the method can also be performed by uniformly adding and mixing components (C) and (D) with component (B) at a temperature above the melting point of component (A), and then filling the container, the oil-based stick cosmetic is not limited to this method. Regarding preferred steps, the aforementioned production method is a method for producing an oil-based stick cosmetic comprising the following steps 1-4. Specifically, the method comprises: Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D); Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition; (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1, and dispersing the mixture at 30-110°C to obtain a cosmetic composition; (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: Heating the cosmetic composition obtained in Step 2 to 80-110°C and filling the container with stirring. Step 4: Cooling the cosmetic composition obtained in Step 3 and filled into the container. The temperature in Step 1 is not particularly limited, provided it is above the melting point of component (A), but is preferably 70-130°C, more preferably 80-110°C. Furthermore, in Step 1, although components (B) and (C) are mixed separately with component (A), they are preferably added after premixing components (C) and (D) and then mixed with component (A). This process is preferred due to its excellent color retention, smooth elongation and diffusion, and lack of secondary adhesion. However, mixing component (A) with components (C) and (D) is essential in step 1. For example, if component (D) is not added in step 1, the product may be degraded from the perspective of preventing separation during the step. Regarding the machine used for the dispersion treatment of the mixture in step (2-1) of step 2, the dispersion treatment after further adding component (B), and the dispersion treatment after adding component (B) to the mixture in step (2-2), if it is a dispersion machine commonly used in the production of cosmetics, although not particularly limited, examples thereof include Henschel mixers, kneaders, media dispersers such as bead mills and ball mills, medium-free nano high-pressure dispersers, stone mills, drum mills, homogenizers, Ajidesper, triple mixers, super mixers, high-viscosity mixers, and other machines that utilize self-revolution, etc., and preferably, media dispersers such as bead mills and ball mills, medium-free nano high-pressure dispersers, stone mills, and drum mills. Among these, a high-shear dispersion treatment using a machine capable of high-shear dispersion is preferred. More preferred high-shear dispersion machines include media dispersers such as bead mills and ball mills, medium-free nano-high-pressure dispersers, stone mill grinders, drum mills, and machines utilizing auto-revolving motions. This process is preferred due to its excellent color retention and smooth, elongated diffusion. While the oily stick cosmetic of the present invention exhibits no secondary adhesion, rapid development is crucial. However, after application, it is crucial that component (B) rapidly separates from the surface of the coating film and that the phase comprising components (A), (C), and (D) rapidly migrates near the skin. However, separation during step 2 may affect smooth elongation and diffusion during use, mold release during filling, or stability over time. Therefore, it is preferable to mix more uniformly during step 2. To achieve these opposing effects, adjustment is preferably performed in step 2. Specifically, step (2-1) involves adding component (B) at a specific temperature to the oil phase in which component (D) is uniformly dispersed. Although mixing is performed after further homogenizing component (B), step (2-1) is preferred from the perspective of preventing separation during step 2. In step (2-1), the temperature for adding component (B) is 30-110°C, preferably 60-110°C, and more preferably 60-90°C. Within this range, component (B) does not have good compatibility with other components, so it does not promote reagglomeration of the oil phase components including component (D). This is preferable because it achieves both a speed acceleration without secondary adhesion and prevents in-step separation and mold release of the components. Furthermore, in step (2-1), the temperature during dispersion in the mixture obtained in step 1 is 5-80°C, more preferably 10-60°C. Component (E) can be added, mixed, or dispersed in either Step 1 or Step 2. While it can be added, mixed, or dispersed in both Steps 1 and 2, adding and mixing in Step 1 is preferred due to its superior color retention and smooth elongation and diffusion. Even when using Component (F), it can be added, mixed, or dispersed in either Step 1 or Step 2. While it can be added, mixed, or dispersed in both Steps 1 and 2, adding and dispersing in Step 2 is preferred due to its superior smooth elongation and diffusion. Regarding the container in Step 3, while filling can be performed in a rubber mold, metal mold, or plastic container, a rubber mold or metal mold container is preferred, with a rubber mold container being more preferred. This process is preferred because the oil-based stick cosmetic has excellent mold release properties during filling and maintains stability over time. Note that each step is not limited to containing ingredients other than those listed. In step 4, the cosmetic composition filled into the container in step 3 is cooled and solidified. The temperature is not particularly limited, but is, for example, approximately -20°C to 0°C.

The oil-based stick cosmetic of the present invention is not particularly limited in form as long as it is solid and can be used in lip makeup such as lipstick and lip gloss, foundation, concealer, eyeliner, eye shadow, blush, etc. The oil-based stick cosmetic of the present invention has the advantages of color retention and smooth, elongated, and diffused properties. Because it can be applied smoothly to the soft part of the body where daily movement is frequent, it is suitable for use in lip makeup, where a lot of makeup is applied to the lips.

The present invention may also adopt the following structure. [1] A method for producing an oily stick cosmetic, which contains the following ingredients (A) to (E); (A) wax (B) non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm2 /s at 25°C (C) non-volatile liquid ester oil (D) coloring powder (E) polyol, and the mass ratio of the above-mentioned ingredient (B) to the above-mentioned ingredient (C) (B)/(C) is 0.5 to 3.0. The method for producing an oily stick cosmetic is characterized by comprising the following steps 1 to 4. Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D). Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition, or (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: heating the cosmetic composition obtained in the above step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in the above step 3 and filled into the container. [2] The method for producing an oily stick cosmetic as described in [1], wherein the component (B) is one or more selected from (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. [3] The method for producing an oily stick cosmetic as described in [1] or [2], wherein the content of the component (E) is 0.05-1.5% by mass. [4] The method for producing an oily stick cosmetic as described in any one of [1] to [3], wherein the component (C) comprises (C1) a non-volatile liquid ester oil having a viscosity of less than 1,000 mPa·s at 25°C and (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa·s or more at 25°C. [5] The method for producing an oily stick cosmetic as described in any one of [1] to [4], wherein the component (F) a volatile oil is further added to the step 1 and/or 2. [6] The method for producing an oily stick cosmetic as described in any one of [1] to [5], wherein the step 2 is the step (2-1). [7] The method for producing an oily stick cosmetic as described in any one of [1] to [6], wherein the dispersion treatment in step 2 is a high shear dispersion treatment. [8] The method for producing an oily stick cosmetic as described in any one of [1] to [7], wherein the container filled with the cosmetic composition in step 3 is a rubber mold or a metal mold. [9] An oily stick cosmetic comprising the following ingredients (A) to (E); (A) wax; (B) non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm2 /s at 25°C; (C) non-volatile liquid ester oil; (D) coloring powder; (E) polyol; wherein the mass ratio of the aforementioned ingredient (B) to the aforementioned ingredient (C) is (B)/(C) of 0.5 to 3.0, and is obtained by a manufacturing method comprising the following steps 1 to 4. Step 1: Dissolving the aforementioned component (A) at a temperature above the melting point of component (A), and adding and mixing the aforementioned components (C) and (D). Step 2: (2-1) Dispersing the mixture obtained in the aforementioned step 1 at 5-80°C, and then adding and dispersing the aforementioned component (B) at 30-110°C to obtain a cosmetic composition, or (2-2) Adding the aforementioned component (B) to the mixture obtained in the aforementioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition (However, the aforementioned component (E) is added, mixed, or dispersed in steps 1 and/or 2). Step 3: heating the cosmetic composition obtained in the above step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in the above step 3 and filled into the container. [10] The oily stick cosmetic described in [9], wherein the content of the above component (B) is 25-55% by mass. [11] The oily stick cosmetic described in [9] or [10], wherein the above component (B) comprises (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. [12] The oily stick cosmetic as described in any one of [9] to [11], wherein the component (C) is one or more selected from (C1) a polyglycerol fatty acid ester having a viscosity of less than 1,000 mPa·s at 25°C, and (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa·s or more at 25°C. [13] The oily stick cosmetic as described in any one of [9] to [12], wherein the average kinematic viscosity ratio (B1)/(B2) of the component (B1) to the component (B2) is 1 to 250. [14] The oily stick cosmetic as described in any one of [9] to [13], wherein the component (C) comprises one or more selected from (C1) triisostearate polyglyceryl-2, and (C2) (VP/hexadecene) copolymer and dimer dilinoleic acid dimer secondary linolenic acid diisostearate. [15] The oily stick cosmetic as described in any one of [9] to [14], wherein the component (E) is one or more selected from 1,3-butylene glycol, dipropylene glycol, 1,2-hexanediol, glycerol and tripropylene glycol. [16] The oily stick cosmetic as described in any one of [9] to [15], wherein the component (F) further contains a volatile oil. [Examples]

The present invention is described in detail with reference to the following examples. However, the present invention is not limited thereto. Examples 1-47 and Comparative Examples 1-4: Oily Stick Lipsticks The stick lipsticks having the formulas shown in Tables 1-5 below were prepared using Manufacturing Method 1. The following evaluation methods were used to evaluate (1) speed without secondary adhesion, (2) color retention, (3) smooth elongation and diffusion, (4) prevention of separation during the step, and (5) demoldability.

*1 CIREWAX90 (manufactured by CIREBELLE) *2 CIREWAX80 (manufactured by CIREBELLE) *3 CB303 (manufactured by SONNEBORN) *4 Purified Candle Tree Wax SR-3 (manufactured by NATURAL-PRODUCTS, Japan) *5 TOWAX 1F-6 (manufactured by TOA KAGAKA) *6 WHITE BEES WAX (manufactured by Miki Chemical) *8 KF-54 (manufactured by Shin-Etsu Chemical)

*9 BELSIL PDM 1000 (manufactured by Asahi Kasei Wacker Co., Ltd.) *10 DOWSIL SH 556 Fluid (manufactured by Toray Dow Chemical Co., Ltd.)

*7 Leopard KL2 (made by Chiba Flour Milling Co., Ltd.)

《Manufacturing method》 (Manufacturing method 1) (Raw materials without blending amount are considered as not included). Step 1: a. Dissolve components (1) to (7) (except component (A)) uniformly at a temperature above the melting point of 80 to 110°C. b. Mix and disperse components (15) to (22) (component (C)) and components (24) to (25) (component (D)). c. Add b to a, and further add component (23) and components (26) to (28) (component (E)), and heat and mix at 80 to 110°C. Step 2 (2-1): d. Mix and disperse c uniformly in a drum mill at 10 to 60°C. e. Add components (8) to (14) (except component (B)) and component (29) (component (F)) to d, and heat and mix at 80°C. (Cosmetic Composition) Step 3: f. While stirring ingredient e (excluding ingredient (A)) at a temperature above 100°C (above the melting point), fill the lipstick into a rubber mold (12mm). Step 4: g. Cool ingredient f at -10°C to obtain an oil-based stick lipstick.

Examples 1-2 to 1-12 The oil-based stick lipsticks shown in Table 6 below were adjusted using Manufacturing Methods 2 to 12. The following evaluation methods were used to evaluate (1) speed without secondary adhesion, (2) color retention, (3) smooth elongation and diffusion, (4) prevention of intra-step separation, and (5) mold release properties, and compared with Example 1 (Manufacturing Method 1).

<Manufacturing Method> (Manufacturing Method 2) In the step of (Manufacturing Method 1), step 1: b is changed to "b. Add components (15) to (22) (component (C)), components (24) to (25) (component (D)), components (26) to (28) (component (E)), and component (23) to step a, and mix at 110°C." To produce.

(Manufacturing Method 3) In step 2 (2-1): e of (Manufacturing Method 1), replace step 2 (2-1): e with "e. Add ingredients (8) to (14) (excluding ingredient (B)) and ingredient (29) (ingredient (F)) to step d, and heat and mix at 110°C. (Cosmetic composition)"

(Manufacturing Method 4) In step 2 (2-1): e of (Manufacturing Method 1), replace step 2 (2-1): e with "e. Add ingredients (8) to (14) (excluding ingredient (B)) and ingredient (29) (ingredient (F)) to step d and heat and mix at 30°C. (Cosmetic composition)"

(Manufacturing method 5) In the step of (Manufacturing method 1), step 1: c is changed to "c. Add b to a, and further add component (23), components (26) to (28) (component (E)), heat and mix at 110°C, and add component (29) (component (F)), and heat and mix at 70°C. Delete the step of adding component (29) (component (F)) from step e.." to produce.

(Manufacturing Method 6) In step 2 (2-1): e of (Manufacturing Method 1), replace step 2 (2-1): e with "e. Add ingredients (8) to (14) (excluding ingredient (B)) to step d, heat and mix at 80°C, and add ingredient (29) (ingredient (F)) and mix at 40°C. (Cosmetic composition)"

(Manufacturing Method 7) In the step of (Manufacturing Method 1), step 2 (2-1): e is changed to "e. Add ingredients (8) to (14) (excluding ingredient (B)) in step d, add ingredient (29) (ingredient (F)), and delete ingredient (E) from the addition in step c., and transfer to step e., heating and mixing at 80°C. (Cosmetic composition)" to produce.

(Manufacturing Method 8) In (Manufacturing Method 1), replace step 3:f with: "f. While stirring e at a temperature 100°C or higher above the melting point of (the component other than (A)), fill the lipstick into a stainless steel 12φ container."

(Manufacturing Method 9) In (Manufacturing Method 1), replace step 3:f with: "f. While stirring e at a temperature 100°C or higher above the melting point of (other than ingredient (A)), fill the lipstick into a 12-diameter PP capsule container."

(Manufacturing Method 10) In the steps of (Manufacturing Method 1), replace step 2 (2-1): d with: "d. Mix and disperse c uniformly in a high-viscosity stirrer at 10°C to 60°C."

(Manufacturing method 11) In step (Manufacturing method 1), Step 1: c is changed to "c. Add b to a, and further add component (23), component (26) to (28) (component (E)), and heat and mix at 110°C." Step 2 (2-2): d is defined as [d. Add components (8) to (14) (other than component (B)), and heat and mix at 80°C. Mix and disperse uniformly in a roller mill at 10°C to 60°C. ] Step, Delete "In step d, add components (8) to (14) (other than component (B))" from step e and change to "e. Add component (29) (component (F)), and heat and mix at 80°C. (Cosmetic composition)" to manufacture.

(Manufacturing method 12) In the step of (Manufacturing method 1), Step 1: c is defined as "c. Add b to a, and further add component (23), component (26) to (28) (component (E)), heat and mix at 110°C, and add component (29) (component (F)), heat and mix at 80°C." As step 2 (2-2): d is defined as [d. Add components (8) to (14) (excluding component (B)), heat and mix at 80°C. Mix and disperse uniformly in a drum mill at 10°C to 60°C. (Cosmetic composition)" and delete step e to produce.

(Evaluation Method) (1) Speed without secondary adhesion effect (2) Color retention (3) Smooth elongation and diffusion For the following items (1) to (3), each sample was tested by 12 cosmetics evaluation specialists. The examiners individually used the oily stick lipsticks of the examples and comparative examples and evaluated them using the following absolute evaluation criteria in a 5-stage process. The scores were then calculated based on the average of the scores from all examiners for each sample, and the results were evaluated using the following criteria. Regarding (1) the speed of the secondary adhesion effect, each sample was applied to the lips for 1 minute and then tissue was removed to evaluate whether the secondary adhesion was suppressed. Regarding (2) the color retention, each sample was applied to the lips and 8 hours later, the color retention was evaluated. Regarding (3) the smooth extension and diffusion, each sample was applied to the lips to evaluate whether it was smooth and extended.

<Evaluation Items> (1) Speed without secondary adhesion effect (2) Color retention (3) Smooth elongation and diffusion

<Absolute Evaluation Criteria> (Rating): (Evaluation) 5: Very Good 4: Good 3: Fair 2: Poor 1: Very Poor <5-Level Evaluation Criteria> (Evaluation): (Evaluation) AA: 4.5 or higher A: 4.0 or higher but less than 4.5 B: 3.5 or higher but less than 4.0 C: 3.0 or higher but less than 3.5 D: Less than 3.0

(4) Preventing Separation During the Process Regarding the prevention of separation during the process, as a method for evaluating separation immediately before filling, the stick-shaped cosmetic materials of the aforementioned Examples and Comparative Examples were dissolved at 110°C, and then 50 g was filled into a cylindrical glass bottle with a diameter of 4 cm and a height of 8 cm. The state after standing for 10 minutes while continuing to heat was observed and evaluated based on the following criteria. This evaluation can verify the separation behavior of the oil and colorant during the actual manufacturing process. (Criteria for Preventing Separation During the Step) (Judgment): (Evaluation) AA: No oil separation or uneven color was observed in the cosmetic. A: Although uneven color or separation was observed, the cosmetic became uniform after a single shake. B: Although uneven color or separation was observed, the cosmetic became uniform after a second shake. C: Separation was observed in the cosmetic, and even after a second shake, the cosmetic became uneven. D: Extensive separation occurred in the cosmetic.

(5) Mold release properties For mold release properties, repeat the process of forming each sample into a rod shape until the end, and visually evaluate the appearance using the following criteria. (Demolding Criteria) (Determination): (Evaluation) AA: Almost no peeling, cracking, bending, or defects were observed (the proportion of appearance is less than 2.5%) A: Only one of peeling and defects was observed (the proportion of appearance is less than 2.5% to 5%) B: Both peeling and defects were observed (the proportion of appearance is less than 2.5% to 5%) C: Either peeling or defects was clearly observed. Although the impact on usability is small, it is an unacceptable level of appearance quality (the proportion of appearance is less than 5% to 10%) D : Significant peeling, cracking, bending, and defects were observed, affecting usability (appearance percentage: 10% or more)

As is clear from the results in Tables 1-5, the oil-based stick lipsticks of Examples 1-47 of the present invention excel in color retention, smooth spreading, speed without secondary adhesion, prevention of in-step separation, and release properties compared to the oil-based sticks of Comparative Examples 1-4. On the other hand, Comparative Example 1, which lacks component (A), lacks color retention, smooth spreading, speed without secondary adhesion, and release properties, and consequently, fails to achieve satisfactory results. Furthermore, Comparative Example 2, which lacks component (B), lacks color retention, smooth spreading, speed without secondary adhesion, and release properties, failing to achieve satisfactory results. Furthermore, in Comparative Example 3, which lacked component (C), color retention, smooth elongation and diffusion, a lack of secondary adhesion speed, and mold release properties were insufficient, and no satisfactory results were achieved. Furthermore, in Comparative Example 4, which lacked component (E), smooth elongation and diffusion, a lack of secondary adhesion speed, and no satisfactory results were achieved.

As is clear from the results in Table 6, the oil-based stick lipsticks of Examples 1 and 1-8 of the present invention are significantly superior to the oil-based sticks of Examples 1-2 to 1-7 and 1-9 to 1-12 in terms of color retention, smooth spreading, speed without secondary adhesion, prevention of separation during the process, and mold release. In particular, Example 1 is superior even in terms of surface appearance. Example 1-2 of Production Method 2, while slightly less color retention was observed due to the lack of pre-contact with Components (C) and (D), was significantly superior in terms of smooth spreading, speed without secondary adhesion, prevention of separation during the process, and mold release. In Example 1-3 of Manufacturing Method 3, due to the high temperature at which component (B) was added, the high fluidity of the product formed in Step 1 was observed, which reduced the viscosity and facilitated contact between component (B) and component (D), making separation slightly easier during the step. However, the product was very excellent in terms of color retention, smooth elongation and diffusion, speed without secondary adhesion, and mold release. In Example 1-4 of Manufacturing Method 4, due to the low temperature at which component (B) was added, the high viscosity of the product formed in Step 1 made mixing of component (B) difficult, preventing uniform mixing. Although separation was slightly easier during the step, and the tendency towards smooth elongation and diffusion was slightly reduced, the product was very excellent in terms of color retention, speed without secondary adhesion, and mold release. Although Examples 1-5 of Manufacturing Method 5 added component (F) in Step 1, rather than Step 2, a slight decrease in smooth elongation and diffusion was observed, the results were very excellent in terms of color retention, speed without secondary adhesion, prevention of in-step separation, and mold release. Examples 1-6 of Manufacturing Method 6, although the temperature for adding component (F) was lowered in Step 2, the increased viscosity of the previous composition made uniform mixing of component (F) difficult, and some tendency to disrupt the continuous wax crystal structure of components (A) to (E) was observed. However, the results were very excellent in terms of color retention, speed without secondary adhesion, and prevention of in-step separation. Although Example 1-7 of Manufacturing Method 7 changes the process from step 1 to step 2 by adding component (E), color retention is slightly reduced due to the contact between component (D) and component (E). However, the results are very excellent in terms of smooth elongation and diffusion, speed without secondary adhesion, prevention of separation during the step, and mold release. Example 1-9 of Manufacturing Method 9 changes the container in step 3. This further affects smooth elongation and diffusion due to mold release. However, the results are excellent in terms of color retention, speed without secondary adhesion, and prevention of separation during the step. Although Example 1-10 of Manufacturing Method 10 used a different dispersing machine in Step 2, the influence of Component (D) slightly affected color retention, but it also demonstrated excellent smooth elongation and diffusion, a speed without secondary adhesion, prevention of in-step separation, and mold release properties. In Examples 1-11 and 1-12 of Manufacturing Method 11, rather than adding Component (B) later in Step 2 (2-1), Component (B) was pre-added and then dispersed in Step 2-2. The dispersing of Component (D) during the dispersion process was observed to promote in-step separation and also affect mold release properties. Furthermore, in Example 1-12 of Manufacturing Method 12, in which Component (F) was added before Step 2, although a tendency toward reduced color retention or smooth elongation diffusion was observed, the speed was maintained without a secondary adhesion effect.

Example 48: Oil-based stick eye shadow Element (%) (1) Polyethylene wax (melting point 90℃)*12 6 (2) Brazilian palm wax (melting point 85°C)*5 0.5 (3) Candle wax (melting point 72°C) *4 1 (4) Diphenyl polydimethylsiloxane (viscosity: 400cs (dynamic viscosity) *1.08(density)mPa･s)*8 28 (5) Dimethyl polysiloxane (viscosity: 100cs (dynamic viscosity) *0.97 (density) mPa･s) 3 (6) Dimethyl polysiloxane (viscosity: 20cs (dynamic viscosity) *0.97 (density) mPa･s) 6 (7) Polyglyceryl-2 Triisostearate (Viscosity 550mPa･s) 15 (8) Dimer dilinoleic acid dimer secondary linolenic acid base diisostearyl (Viscosity 12,500 mPa･s) 10 (9) Vanillin butyl ether 0.1 (10) Mineral oil Residue (11) Fiber powder 0.2 (12) Olive oil 0.1 (13) Jojoba seed oil 0.1 (14) Sesame seed oil 0.1 (15) Red No. 202 1.5 (16) Yellow No. 4 1 (17) Blue No. 1 0.5 (18) Red iron oxide 0.5 (19) Yellow iron oxide 0.5 (20) Black iron oxide 0.5 (21) Polyglyceryl-2 Tetraisostearate (2% surface treatment) Mica titanium (interference color: blue, average particle size 40μm) 6 (22) Mica titanium (interference color: red, average particle size 20 μm) 1 (23) Tocopherol 0.1 (24) Mica (average particle size 20 μm) 0.2 (25) l-Menthol 0.5 (26) Tripropylene glycol 0.4 (27) Isododecane 5 *12: LIPWAX A-4 (made by NATURAL-PRODUCTS, Japan)

A.   Dissolve ingredients (1) to (3) uniformly at 110°C. B.   Mix and disperse ingredients (7) to (24). C.   Add ingredients B and (25) to (26) to A and mix at 110°C. D.   Mix and disperse C uniformly in a roller mill at 10°C to 60°C. E.   Add ingredients (4) to (6) to D and heat and mix at 80°C. (Step (2-1)) F.   Add ingredient (27) to E and heat and mix at 80°C. G.   While stirring F at above 100°C, fill into a rubber mold (12Φ) container. H.   Cool G at -10°C to obtain an oil-based stick eye shadow.

The oil-based stick eye shadow of Example 48 has excellent color retention, smooth elongation and diffusion, no secondary adhesion effect, prevents separation during the step, and has excellent demolding properties.

Example 49: Oily stick concealer Element (%) (1) Synthetic wax (melting point 80℃)*2 5 (2) Honey wax (melting point 63℃)*6 1 (3) Rice bran wax (melting point 78°C)*13 0.5 (4) Dextrin Isostearate 1 (5) (Palmitic Acid/Ethylhexanoate) Dextrin 0.2 (6) Trimethylsiloxyphenyl dimethicone (Viscosity 100mPa･s)*9 20 (7) Dimethyl polysiloxane ((Viscosity: 100cs (dynamic viscosity) *0.97 (density) mPa･s) 10 (8) Polyglyceryl Pentaisostearate-10 (Viscosity 4,500 mPa･s) 17 (9) Diisostearyl Appleate (viscosity 2500mPa･s) 10 (10) Rosehip Oil 1 (11) Disteardiammonium lithium montmorillonite 0.5 (12) Dimethylsilyl Silica 0.4 (13) Camellia extract 0.1 (14) Olive squalane 0.1 (15) Rosa canina fruit oil 0.1 (16) Macadamia Oil Residue (17) Jojoba seed oil 1 (18) Lauroyl lysine (2% surface treatment) red iron oxide 0.7 (19) Lauroyl lysine (2% surface treatment) yellow iron oxide 0.4 (20) Lauryl lysine (2% surface treatment) black iron oxide 0.1 (21) Lauryl lysine (2% surface treatment) titanium oxide 0.5 (22) Silicic anhydride (spherical, average particle size 10 μm) 1 (23) Dipropylene glycol 0.4 (24) Isododecane 5 *13: Rice wax SS-I (made by Boso Oil Co., Ltd.)

A.   Dissolve ingredients (1) to (5) uniformly at 110°C. B.   Mix and disperse ingredients (8) to (22). C.   Add ingredients B and (23) to ingredients A and mix at 110°C. D.   Mix and disperse ingredients C uniformly at 10°C to 60°C in a roller mill. E.   Add ingredients (6) to (7) to ingredients D and heat and mix at 80°C. (Step (2-1)) F.   Add ingredient (24) to ingredients E and heat and mix at 80°C. G.   While stirring F at above 100°C, fill into a rubber mold (12Φ) container. H.   Cool G at -10°C to obtain an oil-based stick concealer.

The oil-based stick concealer of Example 49 has excellent color retention, smooth elongation and diffusion, no secondary adhesion effect, prevents separation during the step, and has excellent demolding properties.

Example 50: Oily stick rouge Element (%) (1) (Ethylene/propylene) copolymer (melting point 95°C) 7 (2) Candle wax (melting point 72°C) *4 1.5 (3) Ethyl cellulose 0.5 (4) Dimethyl polysiloxane (viscosity: 100cs (dynamic viscosity) *0.97 (density) (mPa･s) 10 (5) Phenyl trimethicone (viscosity: 20cs (dynamic viscosity) *0.98(density)(mPa･s))*10 25 (6) Polyglyceryl-2 Triisostearate (Viscosity 550mPa･s) 20 (7) Polyglyceryl-2 Tetraisostearate (Viscosity 750mPa･s) 5 (8) (VP/hexadecene) copolymer (Viscosity 10,700 mPa･s) 10 (9) Sansho pepper extract 0.05 (10) Lecithin 0.5 (11) Mineral oil Residue (12) Mica (average particle size 15 μm) 3 (13) Talc (average particle size 5 μm) 3 (14) Blue No. 1 0.05 (15) Red No. 202 1 (16) Red No. 226 1 (17) Polylactic acid (spherical, average particle size 15 μm) 1 (18)Purified water 0.01 (19) Hyaluronic acid sodium 0.1 (20) Dipropylene glycol 0.4 (21)Isohexadecane 8

A.   Dissolve ingredients (1) to (3) uniformly at 110°C. B.   Mix and disperse ingredients (6) to (17). C.   Add ingredients B and ingredients (18) to (20) to A and mix at 110°C. D.   Mix and disperse C uniformly in a roller mill at 10°C to 60°C. E.   Add ingredients (4) to (5) to D and heat and mix at 80°C. (Step (2-1)) F.   Add ingredient (21) to E and heat and mix at 80°C. G.   While stirring F at above 100°C, fill into a rubber mold (12Φ) container. H.   Cool G at -10°C to obtain an oily stick rouge.

The oily stick rouge of Example 50 has excellent color retention, smooth elongation and diffusion, no secondary adhesion effect, prevents separation during the step, and has excellent demolding properties.

Claims (16)

A method for producing an oily stick cosmetic comprising the following ingredients (A) to (E): (A) wax, (B) a non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm² /s at 25°C, (C) a non-volatile liquid ester oil, (D) a coloring powder, and (E) a polyol. The mass ratio of ingredient (B) to ingredient (C) (B/C) is 0.5 to 3.0. The method for producing an oily stick cosmetic comprising the following steps 1 to 4: Step 1: Dissolving ingredient (A) at a temperature above the melting point of ingredient (A), and adding and mixing ingredients (C) and (D). Step 2: (2-1) dispersing the mixture obtained in step 1 at 5-80°C, and then adding and dispersing the aforementioned ingredient (B) at 30-110°C to obtain a cosmetic composition; or (2-2) adding the aforementioned ingredient (B) to the mixture obtained in step 1 and dispersing the mixture at 30-110°C to obtain a cosmetic composition (however, ingredient (E) may be added, mixed, or dispersed in step 1 and/or step 2). Step 3: heating the cosmetic composition obtained in step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in step 3 and filled into the container. The method for producing an oil-based stick cosmetic according to claim 1, wherein the component (B) is one or more selected from (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. The method for producing an oily stick cosmetic according to claim 1 or 2, wherein the content of the component (E) is 0.05 to 1.5% by mass. The method for producing an oily stick cosmetic according to claim 1 or 2, wherein the component (C) comprises: (C1) a non-volatile liquid ester oil having a viscosity of less than 1,000 mPa·s at 25°C, and (C2) a non-volatile liquid ester oil having a viscosity of not less than 10,000 mPa·s at 25°C. The method for producing an oily stick cosmetic according to claim 1 or 2 further comprises adding ingredient (F) volatile oil in step 1 and/or step 2. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein the step 2 is the step (2-1) described above. The method for producing an oily stick cosmetic according to claim 1 or 2, wherein the dispersion treatment in step 2 is a high shear dispersion treatment. In the method for manufacturing an oily stick cosmetic according to claim 1 or 2, the container filled with the cosmetic composition in step 3 is a rubber mold or a metal mold. An oily stick cosmetic comprises the following ingredients (A) to (E): (A) wax, (B) a non-volatile silicone oil having a kinematic viscosity of 20 to 10,000 ^mm² /s at 25°C, (C) a non-volatile liquid ester oil, (D) a coloring powder, and (E) a polyol. The mass ratio of ingredient (B) to ingredient (C) (B/C) is 0.5 to 3.0. The cosmetic is obtained by a manufacturing method comprising the following steps 1 to 4: Step 1: Dissolving ingredient (A) at a temperature above the melting point of ingredient (A), and adding and mixing ingredients (C) and (D). Step 2: (2-1) dispersing the mixture obtained in step 1 at 5-80°C, and then adding and dispersing the aforementioned ingredient (B) at 30-110°C to obtain a cosmetic composition; or (2-2) adding the aforementioned ingredient (B) to the mixture obtained in step 1 and dispersing the mixture at 30-110°C to obtain a cosmetic composition (however, ingredient (E) may be added, mixed, or dispersed in step 1 and/or step 2). Step 3: heating the cosmetic composition obtained in step 2 at 80-110°C and filling it into a container while stirring. Step 4: cooling the cosmetic composition obtained in step 3 and filled into the container. The oily stick cosmetic of claim 9, wherein the content of the component (B) is 25-55% by mass. The oily stick cosmetic of claim 9 or 10, wherein the component (B) comprises (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane. The oily stick cosmetic of claim 9 or 10, wherein the component (C) is one or more selected from (C1) a polyglycerol fatty acid ester having a viscosity of less than 1,000 mPa·s at 25°C and (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa·s or more at 25°C. The oily stick cosmetic of claim 9 or 10, wherein the average kinematic viscosity ratio (B1)/(B2) of the component (B1) to the component (B2) is 1 to 250. The oily stick cosmetic of claim 9 or 10, wherein the ingredient (C) comprises one or more selected from (C1) polyglyceryl-2 triisostearate, and (C2) (VP/hexadecene) copolymer and dimer dilinoleic acid dimer secondary linolenic acid diisostearate. The oily stick cosmetic of claim 9 or 10, wherein the ingredient (E) is further selected from one or more of 1,3-butylene glycol, dipropylene glycol, 1,2-hexanediol, glycerin, and tripropylene glycol. The oily stick cosmetic of claim 9 or 10, further comprising a volatile oil as ingredient (F).