Oily stick cosmetics and manufacturing method thereof

Abstract

The present invention aims to provide an oily stick cosmetic that has excellent qualities such as speed, color durability, and smooth spreading without secondary adhesion, while also suppressing separation of the cosmetic during the manufacturing process and exhibiting excellent mold release properties during filling. The method for producing an oily stick cosmetic that solves the problems of the present invention is the following method, wherein the oily stick cosmetic contains the following components (A) to (E): (A) wax, (B) a kinetic viscosity of 20 to 10,000 mm / s at 25°C, and (C) a viscous emulsion having a viscosity of 20 to 10,000 mm / s at 25°C. 2 / s non-volatile silicone oil, (C) non-volatile liquid ester oil, (D) coloring powder, (E) polyol, the mass ratio (B) / (C) of the above component (B) to the above component (C) is 0.5 to 3.0, and the production method of the oil-based stick cosmetic comprises the following steps 1 to 4: step 1: dissolving the above component (A) at a temperature above the melting point of the component (A), adding the above component (C) and the component (D), and mixing; step 2: step (2-1) dispersing the mixture obtained in the above step 1 at 5 to 80°C, and then at 30°C to The step (2-2) comprises adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition; or the step (2-2) comprises adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1 and dispersing it at 30-110°C to obtain a cosmetic composition, wherein the above-mentioned component (E) is added, mixed or dispersed in the steps 1 and / or 2; the step 3 comprises heating the cosmetic composition obtained in the above-mentioned step 2 at 80-110°C and filling it into a container while stirring; the step 4 comprises cooling the cosmetic composition filled into the container obtained in the above-mentioned step 3.

Description

Technical Field

[0001] The present invention relates to an oily stick-shaped cosmetic and a method for producing the same. Background Art

[0002] The main effects sought after in oil-based stick cosmetics include, for example, adding color to the lips, creating a healthy impression based on this color, or adding a three-dimensional effect to the lips, making them beautiful and eye-catching. Furthermore, ease of use when applying to the lips is a crucial factor in achieving an ideal makeup film. The lips, in particular, have a soft surface that is difficult to apply cosmetics to, so smooth application is required. In addition to these qualities, the recent increase in the wearing and removing of masks to prevent infections has led to a demand for a "no-secondary adhesion" effect that prevents cosmetics from physically adhering to other materials. Lip cosmetics that quickly exert this "no-secondary adhesion" effect after application are particularly popular. To achieve this, the silicone oil in the cosmetic film separates to the upper layer after application, where it coats the surface of the cosmetic film to exert its effect.

[0003] Hitherto, lip cosmetics have been proposed which combine hydrogenated polyisobutene, one or more methylphenyl silicones that separate when mixed with hydrogenated polyisobutene at 25°C, a lipophilic surfactant that does not separate when mixed with either of the above surfactants at 90°C, and wax in specific amounts. These lip cosmetics exhibit an excellent anti-reattachment effect immediately after application, maintain a long-lasting gloss after application, and exhibit excellent stability (for example, see Patent Document 1).

[0004] In addition, a method for stably producing an oily solid cosmetic containing an incompatible or unstable component has been proposed, the method comprising the following steps: a first fluid containing one or more oily components that are solid at 25°C and a second fluid containing one or more components incompatible with the components contained in the first fluid are combined in a vibrating stirring and mixing device or immediately before the device to obtain a mixed liquid (for example, see Patent Document 2).

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2011-140481;

[0008] Patent Document 2: Japanese Patent Application Laid-Open No. 2015-124204. Summary of the Invention

[0009] Problems to be solved by the invention

[0010] However, increasing the separation speed of the cosmetic coating film to quickly achieve the anti-reattachment effect can also lead to separation during the manufacturing process of oil-based stick cosmetics, resulting in uneven cosmetics. Furthermore, achieving both color longevity and anti-reattachment can sometimes result in poor releasability when molded into a stick. Therefore, there is a need for an oil-based stick cosmetic that exhibits excellent color longevity, smooth spreading, and a high speed for achieving the anti-reattachment effect, while also suppressing separation during the manufacturing process and exhibiting excellent releasability during filling.

[0011] For example, as shown in the technology of Patent Document 1, attention has been paid to maintaining quality by combining raw materials that prevent the easily separated oily agent layer from separating. However, the rate of elimination of the secondary adhesion effect is slow, and oil-based cosmetics with excellent tangible effects have not been developed.

[0012] In addition, as shown in Patent Document 2, for example, in the past, studies have been conducted on the process of using a vibrating stirring and mixing device to deal with the components contained in a first fluid and a second fluid containing one or more incompatible components, but no attention has been paid to the issue of separation from the colorant, nor has attention been paid to solving the problem by studying the order of addition of the colorant.

[0013] Specifically, the present invention aims to provide a method for producing an oil-based stick cosmetic that exhibits excellent color longevity, smooth spreading, and speed without secondary adhesion, while also suppressing separation of the cosmetic during the production process and exhibiting excellent releasability during filling.

[0014] Means for solving problems

[0015] In view of the above-mentioned actual situation, the present inventors have conducted intensive research and found that by producing a wax-containing product having a dynamic viscosity of 20 to 10,000 mm at 25°C through a specific process, 2 / s non-volatile silicone oil, non-volatile liquid ester oil, coloring powder, polyol, and a dynamic viscosity of 20 to 10,000 mm at 25°C 2 The present invention has been completed by providing an oily stick cosmetic containing a non-volatile silicone oil and a non-volatile liquid ester oil in a mass ratio of 0.5 to 3.0 / s, or a method for producing the same, which exhibits excellent qualities such as color durability, smooth spreading, and speed without secondary adhesion, while also suppressing separation of ingredients during the cosmetic manufacturing process and exhibiting excellent demolding properties during filling.

[0016] That is, the present invention provides the following method for producing an oil-based stick cosmetic.

[0017] [1] A method for producing an oil-based stick cosmetic, the oil-based stick cosmetic comprising the following ingredients (A) to (E):

[0018] (A) wax,

[0019] (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil,

[0020] (C) Non-volatile liquid ester oil,

[0021] (D) Coloring powder,

[0022] (E) polyols,

[0023] The mass ratio (B) / (C) of the above-mentioned component (B) to the above-mentioned component (C) is 0.5 to 3.0.

[0024] The method for producing the oil-based stick cosmetic comprises the following steps 1 to 4:

[0025] Step 1: dissolving the component (A) at a temperature above the melting point of the component (A), adding the components (C) and (D), and mixing.

[0026] Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 30 to 110°C to obtain a cosmetic composition; or

[0027] Step (2-2) adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and dispersing it at 30-110° C. to obtain a cosmetic composition;

[0028] (The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or step 2)

[0029] Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring;

[0030] Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

[0031] [2] The method for producing an oil-based stick cosmetic according to [1], wherein the component (B) is one or more selected from (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane.

[0032] [3] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein the content of the component (E) is 0.05 to 1.5% by mass.

[0033] [4] The method for producing an oil-based stick cosmetic according to [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.

[0034] [5] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein a volatile oil as component (F) is further added in the above steps 1 and / or 2.

[0035] [6] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein the step 2 is the step (2-1).

[0036] [7] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein the dispersion treatment in step 2 is a high shear dispersion treatment.

[0037] [8] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein the container filled with the cosmetic composition in step 3 is a rubber mold or a metal mold.

[0038] The present invention also provides the following oil-based stick cosmetics.

[0039] [9] An oil-based stick cosmetic comprising the following ingredients (A) to (E):

[0040] (A) wax,

[0041] (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil,

[0042] (C) Non-volatile liquid ester oil,

[0043] (D) Coloring powder,

[0044] (E) polyols,

[0045] The mass ratio (B) / (C) of the above-mentioned component (B) to the above-mentioned component (C) is 0.5 to 3.0.

[0046] The oil-based stick cosmetic is obtained by a production method comprising the following steps 1 to 4:

[0047] Step 1: dissolving the component (A) at a temperature above the melting point of the component (A), adding the components (C) and (D), and mixing them;

[0048] Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 30 to 110°C to obtain a cosmetic composition; or

[0049] Step (2-2) adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and dispersing it at 30-110° C. to obtain a cosmetic composition;

[0050] (The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or step 2)

[0051] Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring;

[0052] Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

[0053]

[10] The oil-based stick cosmetic according to [9], wherein the content of the component (B) is 25 to 55% by mass.

[0054]

[11] The oil-based stick cosmetic according to [9] or

[10] , wherein the component (B) comprises (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane.

[0055]

[12] The oily stick cosmetic according to [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.

[0056]

[13] The oil-based stick cosmetic according to [9] or

[10] , wherein the average dynamic viscosity ratio (B1) / (B2) of the component (B1) to the component (B2) is 1 to 250.

[0057]

[14] The oily stick cosmetic described in [9] or

[10] , wherein the above-mentioned component (C) contains (C1) polyglyceryl-2 triisostearate, and (C2) one or more selected from (VP / hexadecene) copolymer and dimerized linoleyl diisostearyl dimerized linoleate.

[0058]

[15] The oil-based stick cosmetic 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.

[0059]

[16] The oil-based stick cosmetic according to [9] or

[10] , further comprising a volatile oil as component (F).

[0060] Effects of the Invention

[0061] The present invention can provide an oil-based stick cosmetic having excellent color durability, smooth spreading, and no secondary adhesion, suppresses separation of ingredients during the manufacturing process, and has excellent mold release properties during filling. DETAILED DESCRIPTION

[0062] Preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the following preferred embodiments and can be freely modified within the scope of the present invention. It should be noted that in this specification, unless otherwise specified, percentages are expressed based on mass. In addition, in this specification, when "to" is used to express a numerical range, the range includes both ends of the value.

[0063] The melting point in the present invention is defined as the melting point (Tm) obtained by measuring a melting endotherm using a differential scanning calorimeter (DSC) by holding a sample at -10°C for 5 minutes under a nitrogen atmosphere and then raising the temperature at 10°C / minute to obtain a peak top observed on the highest temperature side of the melting endotherm.

[0064] The viscosity at 25°C in the present invention (mPa·s) = (CSt: centistokes) means that the measured sample is filled into a glass bottle with an outer diameter of 45mm, an inner diameter of 38mm, and a height of 82mm so that no air gap is generated, the bottle is covered with a lid, and placed in a constant temperature bath at 25°C for one day and night. Then, the measured value after 1 minute is read at 0.3 to 30 rpm using a single cylindrical rotational viscometer Vismetron (registered trademark) (manufactured by Shibaura System Co., Ltd.) (B-type viscometer) using the included No. 1 to 4 rotors, and the value is multiplied by the respective multipliers. Viscosity indicates the difficulty of moving an object in a fluid. On the other hand, dynamic viscosity (mm 2 / s) indicates the difficulty of fluid movement. The density of the object and the dynamic viscosity (mm 2 / s) = viscosity (mPa·s) / density.

[0065] The component (A) wax in the present invention can be used as long as it is a wax commonly used in cosmetics, and is not limited to animal, plant, or synthetic sources. For example, hydrocarbon waxes (A1) such as polyethylene wax, paraffin wax, ceresin, ozokerite, microcrystalline wax, hydrogenated microcrystalline wax, Fischer-Tropsch wax, (ethylene / propylene) copolymer, and synthetic wax; wax esters (A2) such as hard lanolin, carnauba wax, beeswax, stearyl stearate, montan wax, hydrogenated jojoba oil, behenyl behenate, candelilla wax, sunflower seed wax, and rice bran wax; and silicone waxes such as long-chain alkoxy-modified silicones and long-chain alkyl-modified silicones (e.g., stearyl dimethicone). One or more of these can be used in combination. From the perspective of mold release during filling, color durability, preventing separation during the manufacturing process, and increasing the speed of the non-secondary adhesion effect, it is preferred to use hydrocarbon wax (A1) and wax ester (A2) in combination.

[0066] In the present invention, among component (A), the hydrocarbon wax (A1) is preferably polyethylene wax, paraffin wax, synthetic wax, or the like from the viewpoint of mold release and smooth spreading during filling. 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 viewpoint of mold release and smooth spreading during filling, the wax ester (A2) is preferably candelilla wax, carnauba wax, or beeswax, more preferably candelilla wax and carnauba wax, and even more preferably candelilla wax.

[0067] When (A1) and (A2) are used together as component (A), the mass ratio (A1) / (A2) of (A1) to (A2) is preferably 0.2 or more, more preferably 1 or more, and even more preferably 4 or more 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 preferred in terms of color durability and prevention of component separation during the process.

[0068] Regarding the content of ingredient (A) in the present invention, the lower limit 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%. This range is more preferable in terms of mold release during filling, smooth spreading, speed without secondary adhesion, and color durability.

[0069] The component (B) used in the present invention has a dynamic viscosity at 25°C of 20 to 10,000 mm 2The non-volatile silicone oil of / s can be any non-volatile silicone oil other than a solid at room temperature that is commonly used in cosmetics, regardless of the 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, highly polymerized dimethylpolysiloxane, polyether-modified silicones such as polyoxyethylene-modified organopolysiloxane and polyoxyethylene-polyoxypropylene-modified organopolysiloxane, and amino-modified silicones such as amino-terminated dimethylsiloxane are representative. Examples include modified silicones such as fatty acid-modified polysiloxane, higher alcohol-modified polysiloxane, and alkyl-modified polysiloxane. As component (B), one or more of these can be appropriately selected for use.

[0070] The dynamic viscosity of component (B) in the present invention at 25°C is 20 to 10,000 mm 2 / s of non-volatile silicone oil is not particularly limited. From the viewpoints of mold release during filling, color durability, prevention of separation during the manufacturing process, and improvement of the speed without secondary adhesion effect, it is preferred to use (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane in combination. As (B1), there are: trimethylsiloxyphenyl dimethicone, trimethyl pentaphenyl trisiloxane, diphenyl dimethicone, phenyl trimethicone, diphenyl siloxyphenyl trimethicone, etc. Among these, from the viewpoint of mold release during filling or the speed without secondary adhesion effect, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, and phenyl trimethicone are preferred, diphenyl dimethicone and trimethylsiloxyphenyl dimethicone are more preferred, and diphenyl dimethicone is further preferred. In addition, from the viewpoint of the speed without secondary adhesion effect, color durability, and smooth spreading, the dynamic viscosity is 10,000 mm 2 / s or less, more preferably 1,000 mm 2 / s or less, more preferably 50mm 2 / s or less.

[0071] When (B1) and (B2) are used together as component (B), the mass ratio (B1) / (B2) of (B1) to (B2) is preferably 1 or greater, more preferably 2 or greater, and even more preferably 3 or greater as the lower limit. It is preferably 10 or less, more preferably 6 or less, and even more preferably 5 or less as the upper limit. It is preferably 1 to 10, more preferably 2 to 6, and even more preferably 3 to 5 as the range. This range is more preferable in terms of mold release properties during filling, speed without secondary adhesion effects, and prevention of separation during the manufacturing process.

[0072] It should be noted that the average dynamic viscosity ratio (B1) / (B2) of (B1) and (B2) contained in the component (B) used in the present invention is not particularly limited. As a lower limit, it is preferably 1 or more, more preferably 3 or more, and even more preferably 20 or more. In addition, as an upper limit, it is preferably 250 or less, more preferably 200 or less, and even more preferably 100 or less. As a range, it is preferably 1 to 250, more preferably 3 to 200, and even more preferably 20 to 100. This range is more preferable in terms of the speed without the secondary adhesion effect. In this specification, the average dynamic viscosity ratio (B1) / (B2) refers to the ratio of the value obtained by multiplying the dynamic viscosity value of (B1) by the content of (B1) in the cosmetic composition to the value obtained by multiplying the dynamic viscosity value of (B2) by the content of (B2) in the cosmetic composition.

[0073] Regarding the content of component (B) in the present invention, the lower limit 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 is more preferable in terms of mold release during filling, smooth spreading, speed without secondary adhesion, and color durability.

[0074] The mass ratio (A) / (B) of component (A) and 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 to 0.29, more preferably 0.1 to 0.22, and even more preferably 0.12 to 0.2. This range is more preferred in terms of mold release during filling, smooth spreading, speed without secondary adhesion effects, and color durability.

[0075] 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 spreading, and mold release properties during filling.

[0076] The non-volatile liquid ester oil (C) used in the present invention is not particularly limited as long as it is a non-volatile liquid ester oil commonly used in cosmetics and is not solid but in a liquid to paste form at room temperature. Examples thereof include, regardless of the production method, degree of polymerization, or whether or not the oil is a mixture, those obtained by ester-bonding a fatty acid with an alcohol, those obtained by ester-bonding a fatty acid with a polyol, those obtained by ester-bonding a carboxyl group of an amino acid with an alcohol, and diesters of dimer acids and / or dimer diols.

[0077] The non-volatile liquid ester oil as component (C) in the present invention is not particularly limited. However, it is preferred to use a combination of (C1) a non-volatile liquid ester oil having a viscosity of less than 1,000 mPa·s and (C2) a non-volatile liquid ester oil having a viscosity of 1,000 mPa·s or greater. Among these, (C2) a non-volatile liquid ester oil having a viscosity of 10,000 mPa·s or greater is more preferred from the viewpoints of mold release during filling, color durability, prevention of separation during the manufacturing process, speed improvement in the non-secondary adhesion effect, and smooth spreading.

[0078] Component (C) of the present invention, specifically, as the non-volatile liquid ester oil (C1) having a viscosity of less than 1,000 mPa·s, examples of ester oils obtained by ester-bonding fatty acids and alcohols include isopropyl palmitate, isopropyl myristate, isopropyl stearate, isobutyl stearate, 2-ethylhexyl stearate, isopropyl isostearate, butyl isostearate, decyl isostearate, lauryl isostearate, isodecyl isodecanoate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, diethyl sebacate, cetyl 2-ethylhexanoate, ethylhexyl palmitate, octyldodecyl myristate, oleyl oleate, and ethyl oleate. Examples of ester oils obtained by ester-bonding 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, (C1) preferably uses polyglyceryl fatty acid esters having 1 to 10 fatty acid bonds, preferably 2 to 4 fatty acid bonds, and more preferably 2 to 3 fatty acid bonds, from the perspective of smooth spreading and speed without a secondary adhesion effect. Specific examples include polyglyceryl-2 monoisostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, and polyglyceryl-2 tetraisostearate.

[0079] Regarding the non-volatile liquid ester oil (C2) having a viscosity of 1,000 mPa·s or greater, examples of ester oils formed by ester-bonding a fatty acid with an alcohol include diisostearyl malate, and examples of ester oils formed by ester-bonding a fatty acid with a polyol include 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, specific examples of oils that are copolymers of a vinyl compound having an amide group and a vinyl compound having an alkyl group include (VP / hexadecene) copolymers. In addition, regarding the ester oil obtained by ester-bonding the carboxyl group of an amino acid with an alcohol, specific examples include: N-lauroyl-glutamate di(phytosterol / 2-octyldodecyl) ester, N-lauroyl-glutamate di(phytosterol / behenyl / 2-octyldodecyl) ester, N-lauroyl-glutamate di(cholesterol / 2-octyldodecyl) ester, N-lauroyl-glutamate di(cholesterol / behenyl / 2-octyldodecyl) ester, N-lauroyl-glutamate di(cholesterol / behenyl / 2-octyldodecyl) ester, and N-lauroyl-sarcosine isopropyl ester. Examples of the diesters of dimer acid and / or dimer diol include diesters of dimer acid and various alcohols obtained by dimerizing mono- or di-unsaturated fatty acids and then hydrogenating them as needed, diesters of dimer diol and various fatty acids obtained by further reducing the dimer acid, and esters of dimer acid and dimer diol. Examples include di(phytosterol / isostearyl alcohol / cetyl alcohol / stearyl alcohol / behenyl alcohol) dimer linoleate, di(isostearyl alcohol / phytosterol) dimer linoleate, dilinoleyl dimer linoleate, and dimer linoleyl diisostearate. Component (C2) is preferably a non-volatile liquid ester oil with a viscosity of 10,000 mPa·s or higher, 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 dimer diol.

[0080] From the viewpoint of speed without secondary adhesion effect, prevention of separation during the production process, and smooth spreading, the viscosity of (C1) of component (C) in the present invention is preferably 50 to less than 1,000 mPa·s, more preferably 50 to 750 mPa·s, and even more preferably 50 to 600 mPa·s.

[0081] The viscosity of (C2) of component (C) in the present invention is preferably 10,000 to 15,000 mPa·s from the viewpoints of speed without secondary adhesion effect, color durability, and prevention of component separation during the process.

[0082] When (C1) and (C2) are used together as component (C), the mass ratio (C1) / (C2) of (C1) to (C2) is preferably 0.1 or greater, more preferably 0.2 or greater, and even more preferably 0.3 or greater as a lower limit. It is preferably 1.4 or less, more preferably 0.85 or less, and even more preferably 0.7 or less as an upper limit. It is preferably 0.1 to 1.4, more preferably 0.2 to 0.85, and even more preferably 0.3 to 0.7 as a range. This range is more preferable in terms of mold release during filling, speed without secondary adhesion effects, color durability, and prevention of component separation during the process.

[0083] The content of ingredient (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 more preferable in terms of speed without secondary adhesion and color durability.

[0084] The mass ratio (B) / (C) of component (B) and component (C) used in the present invention 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 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. This range is more preferable in terms of mold release during filling, smooth spreading, speed without secondary adhesion effects, and color durability.

[0085] The mass ratio of the total of component (A) and component (C) 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. This range is more preferable in terms of color durability and release properties.

[0086] The coloring powder used in component (D) of the present invention can be any coloring powder commonly used in cosmetics, and can be either inorganic or organic, and the hue is not particularly limited. Examples include metal oxides such as titanium oxide, zinc oxide, cerium oxide, iron oxide, titanium / titanium oxide sinter, chromium oxide, chromium hydroxide, cyan blue, and ultramarine; or 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, and Yellow No. 401; or organic pigment powders such as 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 ... Organic pigments such as zirconium, barium or aluminum lakes 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, examples include: white inorganic powders such as 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, magnesium aluminum metasilicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, and barium sulfate; copolymer resins such as polyethylene resins, polyester resins, fluorine resins, cellulose resins, and styrene-acrylic copolymer resins; organic polymer resin powders such as polypropylene resins and nylon powders, metal soap powders, and organic small molecule powders such as N-acyl lysine; starch powders such as acrylic starch and rice starch; natural organic powders such as silk powder, cellulose powder, and dextrin powder; silicone powder, polymethyl methacrylate powder, polystyrene powder, and polyurethane powder. Among these, metal oxides or organic pigments are preferred, with iron oxide, Red 202, and Red 201 being preferred. From the perspective of color durability, Red 202 is more preferred. Furthermore, from the perspective of smooth spreading and color durability, 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 more preferred.

[0087] Furthermore, the colored powder of component (D) used in the present invention may be surface-treated with a commonly known treatment agent such as phospholipids, amino acids, amino acid derivatives, ceramides, dextrin derivatives, organosilicon compounds, fatty acid metal salts, fluorine compounds, surfactants, etc.

[0088] The content of ingredient (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%. This range is more preferred in terms of smooth spreading, speed without secondary adhesion, color longevity, and prevention of separation during the manufacturing process.

[0089] The mass ratio (C) / (D) of component (C) and 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 durability.

[0090] 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 more preferable in terms of color durability and prevention of separation during the manufacturing process.

[0091] The polyol used as component (E) of the present invention is a diol having a structure having two or more hydroxyl groups in the molecule, and more preferably a diol having 3 to 12 carbon atoms. It is not particularly limited as long as it is a diol commonly used in cosmetics, etc. Specific examples include methylene glycol, glycol (ethylene glycol), propylene glycol, propylene glycol (1,3-propylene glycol), diethylene glycol, methylene glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,5-pentanediol, 2,4-pentanediol, 1,2- Cyclopentanediol, 1,3-cyclopentanediol, neopentyl glycol, isopentyl glycol, aminoethylpropylene glycol, 1,2-hexanediol, 1,6-hexanediol, triethylene glycol, dipropylene glycol, butoxydiglycol, tripropylene glycol, ethylhexanediol, butylethylpropylene glycol, 1,10-decanediol, glycerin, trimethylolethane, trimethylolbutane, 1,2,6-hexanetriol, phytantriol, sorbitol, erythritol, pentaerythritol, diglycerol, polyglycerol, etc. Other examples include polyoxyethylene methyl glycoside, polyethylene glycol, and polyglycerol. In particular, in the case of a diol containing a polyethylene glycol chain, a degree of polymerization of 20 or less is preferred, but is not particularly limited. In the case of polyglycerol, a degree of polymerization of 3 to 10 is preferred, but is not particularly limited.

[0092] Component (E) used in the present invention is not particularly limited, but is preferably 1,3-butanediol, dipropylene glycol, 1,2-hexanediol, glycerin, or tripropylene glycol, more preferably dipropylene glycol and 1,2-hexanediol, and even more preferably dipropylene glycol.

[0093] 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 more preferred in terms of speed and color durability without a secondary adhesion effect.

[0094] Furthermore, in the present invention, component (F) volatile oil is preferably used. The volatile oil is not particularly limited as long as it is volatile at 1 atmosphere and 25°C and is commonly used in cosmetics. Specifically, examples of volatile hydrocarbon oils include light liquid isoparaffins, and examples of volatile silicone oils include decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, methyltrimethicone, dimethylpolysiloxane, decamethyltetrasiloxane, and ethyltrisiloxane. The light liquid isoparaffin is not limited to those used as a solubility standard; any other light liquid isoparaffin may be used.

[0095] Commercially available products include Isopar H (manufactured by Esso Chemical Co., Ltd.), isododecane (manufactured by Bayer), 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 Silicone Co., Ltd.), SH245, DC345 (manufactured by Dow Corning Toray Co., Ltd.), and KF-995 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of methyl trimethicone include Silicone TMF-1.5 (manufactured by Shin-Etsu Chemical Co., Ltd.), methyl polysiloxane include KF-96L-2CS (manufactured by Shin-Etsu Chemical Co., Ltd.), and decamethyltetrasiloxane include KF-96L-1.5CS (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0096] Component (F) used in the present invention is not particularly limited. However, in terms of speed without secondary adhesion effect and color durability, volatile hydrocarbon oils are preferred, and light liquid isoparaffins are more preferred.

[0097] 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 more preferred for smooth spreading, long-lasting color, and prevention of separation during the manufacturing process.

[0098] From the perspective of color durability and smooth spreading, the present invention preferably further contains one or more components (G) selected from resins having a plant-derived skeleton and plant-extracted resins. While not particularly limited, examples include dextrin-based resins such as dextrin isostearate, which is a plant-derived matrix. Examples of plant-extracted resins derived from plant fractionated resin components include oil-soluble resins such as candelilla resin and carnauba wax extract resin, and one or more of these can be used. Examples of commercially available products include candelilla resins E-1 and E-2 (manufactured by Japan Natural Products Co., Ltd.), TOWAX-1B4 (manufactured by Toa Chemicals Co., Ltd.), and Unifilma HVY (manufactured by Chiba Flour Milling Co., Ltd.).

[0099] The content of ingredient (G) that can be used in the present invention is not particularly limited, but 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%. Within this range, color longevity and smooth spreading are excellent, which is preferable.

[0100] The oil-based stick cosmetic of the present invention may contain, in addition to the above-mentioned components (A) to (G), components commonly used in cosmetics, such as oily components other than the above-mentioned components (B), (C), and (F), surfactants, fibers, alcohols, oily curing agents other than the above-mentioned component (A), water-soluble polymers, film-forming agents composed of resins other than (G), aqueous components such as moisturizers other than component (E), sugars, antioxidants, antifoaming agents, cosmetic ingredients, preservatives other than component (E), and fragrances, insofar as the effects of the present invention are not impaired.

[0101] The oil-based stick cosmetic of the present invention can be produced by the following production method.

[0102] Specifically, the step of dissolving component (A) at a temperature above the melting point can be included, and the mixture obtained by uniformly adding and mixing components (C) and (D) at a temperature above the melting point of component (A) and component (B) can be added and filled into a container, but the method is not limited to this. Regarding the preferred steps, the above-mentioned production method is a method for producing an oil-based stick cosmetic comprising the following steps 1 to 4, specifically comprising the following steps:

[0103] Step 1: dissolving the component (A) at a temperature above the melting point of the component (A), adding the components (C) and (D), and mixing them;

[0104] Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 30 to 110°C to obtain a cosmetic composition; or

[0105] Step (2-2) adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and dispersing it at 30-110° C. to obtain a cosmetic composition;

[0106] (The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or step 2)

[0107] Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring;

[0108] Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

[0109] The temperature in process 1 is not particularly limited as long as it is a temperature above the melting point of component (A), and is preferably 70 to 130°C, more preferably 80 to 110°C. In addition, in process 1, components (B) and (C) can be mixed with component (A) separately, but it is preferred to mix component (C) and component (D) in advance and then add them and mix them with component (A). Such a process is preferred because the color durability, smooth spreading, and no secondary adhesion effects are excellent. In this way, it is necessary to mix component (A) and components (C) and (D) in process 1. For example, if component (D) is not added in process 1, the viewpoint of preventing separation within the process may sometimes be deteriorated.

[0110] About the dispersion treatment of the mixture in the operation (2-1) of operation 2, the dispersion treatment after further adding component (B), the equipment used in the dispersion treatment after adding component (B) to the mixture in operation (2-2), as long as it is the dispersion equipment for manufacturing ordinary cosmetics, it is not particularly limited, and can be enumerated: Henschel mixer, kneader, media dispersers such as bead mill / ball mill, medium-free nano high-pressure disperser, stone mortar type grinder, roller mill, homogenizer, アジデスパー, triple mixer, super mixer, high viscosity mixer etc. effectively utilize the equipment of rotation revolution etc., preferably media dispersers such as bead mill / ball mill, medium-free nano high-pressure disperser, stone mortar type grinder, roller mill.Wherein, it is preferred to use the high shear dispersion treatment of the equipment carrying out high shear dispersion treatment.As the equipment carrying out high shear dispersion treatment, more preferably media dispersers such as bead mill / ball mill, medium-free nano high-pressure disperser, stone mortar type grinder, roller mill, the equipment of effectively utilizing rotation revolution This process is preferred because it provides excellent color durability and smooth spreading. The oil-based stick cosmetic of the present invention is important for achieving a fast, non-secondary adhesion effect. However, after applying the oil-based stick cosmetic, it is important that component (B) quickly separates to the surface of the coating film and that the phase containing components (A), (C), and (D) quickly migrates to the skin. However, if the components separate during the process, this affects smooth spreading during use, mold release during filling, and stability over time. Therefore, it is preferable to mix more uniformly during the process. To achieve both opposing effects, it is preferable to focus on step 2. Specifically, step (2-1) is a step of adding component (B) to an oil phase in which component (D) has been uniformly dispersed at a specific temperature. This step is a step in which component B is mixed after being uniformly dispersed. However, from the perspective of preventing separation during the process, step (2-1) is preferred. It should be noted that the temperature for adding component (B) in step (2-1) is 30 to 110°C, preferably 60 to 110°C, and more preferably 60 to 90°C. Within this range, component (B) has poor compatibility with other components, which prevents reagglomeration of the oil phase components including component (D), resulting in a high speed without a secondary adhesion effect. Furthermore, both prevention of component separation during the process and mold release properties can be achieved, which is preferable. Furthermore, in step (2-1), the temperature for dispersing the mixture obtained in step 1 is 5 to 80°C, more preferably 10 to 60°C.

[0111] Component (E) may be added and mixed or dispersed in either step 1 or step 2, or in both steps 1 and 2. However, adding and mixing in step 1 is preferred because it provides better color durability and smooth spreading. When using component (F), it may be added and mixed or dispersed in either step 1 or step 2, or in both steps 1 and 2. However, adding and dispersing in step 2 is preferred because it provides better smooth spreading.

[0112] The container in step 3 can be filled into a rubber mold container, a metal mold container, a plastic container, or the like, but a rubber mold container or a metal mold container is preferred, and a rubber mold container is more preferred. This process is preferred because it provides excellent releasability during filling and excellent stability over time.

[0113] In addition, in each process, there is no limitation on containing other components other than the components described.

[0114] In step 4, the cosmetic composition filled into the container in step 3 is cooled to solidify. The temperature is not limited, but is, for example, approximately -20 to 0°C.

[0115] The oil-based stick cosmetics of the present invention are not particularly limited as long as they are solid, and can be used in lip cosmetics such as lipstick and lip gloss, foundation, concealer, eyeliner, eye shadow, blush, and the like. The excellent color retention and smooth spreading properties of the oil-based stick cosmetics of the present invention make them suitable for a variety of lip cosmetics. These lip cosmetics can be applied smoothly to areas of the lips that are frequently touched or are soft to the touch, making them suitable for use on the lips.

[0116] It should be noted that the present invention can also adopt the following configurations.

[0117] [1] A method for producing an oil-based stick cosmetic, the oil-based stick cosmetic comprising the following ingredients (A) to (E):

[0118] (A) wax,

[0119] (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil,

[0120] (C) Non-volatile liquid ester oil,

[0121] (D) Coloring powder,

[0122] (E) polyols,

[0123] The mass ratio (B) / (C) of the above-mentioned component (B) to the above-mentioned component (C) is 0.5 to 3.0.

[0124] The method for producing the oil-based stick cosmetic comprises the following steps 1 to 4:

[0125] Step 1: dissolving the component (A) at a temperature above the melting point of the component (A), adding the components (C) and (D), and mixing them;

[0126] Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 30 to 110°C to obtain a cosmetic composition; or

[0127] Step (2-2) adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and dispersing it at 30-110° C. to obtain a cosmetic composition;

[0128] (The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or step 2)

[0129] Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring;

[0130] Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

[0131] [2] The method for producing an oil-based stick cosmetic according to [1], wherein the component (B) is one or more selected from (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane.

[0132] [3] The method for producing an oil-based stick cosmetic according to [1] or [2], wherein the content of the component (E) is 0.05 to 1.5% by mass.

[0133] [4] The method for producing an oil-based stick cosmetic according to 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.

[0134] [5] The method for producing an oil-based stick cosmetic according to any one of [1] to [4], wherein a volatile oil as component (F) is further added in the above steps 1 and / or 2.

[0135] [6] The method for producing an oil-based stick cosmetic according to any one of [1] to [5], wherein the step 2 is the step (2-1) above.

[0136] [7] The method for producing an oil-based stick cosmetic according to any one of [1] to [6], wherein the dispersion treatment in step 2 is a high shear dispersion treatment.

[0137] [8] The method for producing an oil-based stick cosmetic according to 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.

[0138] [9] An oil-based stick cosmetic comprising the following ingredients (A) to (E):

[0139] (A) wax,

[0140] (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil,

[0141] (C) Non-volatile liquid ester oil,

[0142] (D) Coloring powder,

[0143] (E) polyols,

[0144] The mass ratio (B) / (C) of the above-mentioned component (B) to the above-mentioned component (C) is 0.5 to 3.0.

[0145] The oily stick cosmetic is obtained by a production method comprising the following steps 1 to 4:

[0146] Step 1: dissolving the component (A) at a temperature above the melting point of the component (A), adding the components (C) and (D), and mixing them;

[0147] Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 30 to 110°C to obtain a cosmetic composition; or

[0148] Step (2-2) adding the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and dispersing it at 30-110° C. to obtain a cosmetic composition;

[0149] (The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or step 2)

[0150] Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring;

[0151] Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

[0152]

[10] The oil-based stick cosmetic according to [9], wherein the content of the component (B) is 25 to 55% by mass.

[0153]

[11] The oil-based stick cosmetic according to [9] or

[10] , wherein the component (B) comprises (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane.

[0154]

[12] The oily stick cosmetic according to 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.

[0155]

[13] The oil-based stick cosmetic according to any one of [9] to

[12] , wherein the average dynamic viscosity ratio (B1) / (B2) of the component (B1) to the component (B2) is 1 to 250.

[0156]

[14] The oily stick cosmetic according to any one of [9] to

[13] , wherein the component (C) comprises (C1) polyglyceryl-2 triisostearate, and (C2) one or more selected from the group consisting of (VP / hexadecene) copolymer and dimerized linoleyl diisostearyl dimerized linoleate.

[0157]

[15] The oil-based stick cosmetic according to 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, glycerin and tripropylene glycol.

[0158]

[16] The oil-based stick cosmetic according to any one of [9] to

[15] , further comprising a volatile oil as component (F).

[0159] Example

[0160] The present invention will be described in detail below with reference to the following examples, which are by no means intended to limit the present invention.

[0161] Examples 1 to 47 and Comparative Examples 1 to 4: Oily stick lipsticks

[0162] Lipstick sticks with the formulations shown in Tables 1 to 5 below were prepared using Manufacturing Method 1 and evaluated using the following evaluation methods for (1) speed without secondary adhesion, (2) color durability, (3) smooth spreading, (4) prevention of in-process separation, and (5) release properties.

[0163] [Table 1]

[0164] Production method 1 (mass %)

[0165]

[0166] *1CIREWAX90 (manufactured by CIREBELLE);

[0167] *2CIREWAX80 (manufactured by CIREBELLE);

[0168] *3CB303 (manufactured by SONNEBORN);

[0169] *4Purified candelilla wax SR-3 (manufactured by Japan Natural Products);

[0170] *5TOWAX 1F-6 (manufactured by Toa Chemical);

[0171] *6WHITE BEES WAX (manufactured by Miki Chemical);

[0172] *8KF-54 (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0173] [Table 2]

[0174] Production method 1 (mass %)

[0175]

[0176] *9BELSIL PDM 1000 (manufactured by Asahi Kasei Wacker Co., Ltd.);

[0177] *10 DOWSIL SH 556 Fluid (manufactured by Dow Toray).

[0178] [Table 3]

[0179] Production method 1 (mass %)

[0180]

[0181] [Table 4]

[0182] Production method 1 (mass %)

[0183]

[0184] [Table 5]

[0185] Production method 1 (mass %)

[0186]

[0187] *7Rheopearl KL2 (manufactured by Chiba Flour Milling Co., Ltd.)

[0188] Manufacturing Method

[0189] (Production Method 1) (Raw materials No. whose blending amount is not described are considered to be free).

[0190] Step 1:

[0191] a. Dissolve components (1) to (7) (component (A) etc.) uniformly at a temperature above their melting point, 80 to 110°C.

[0192] b. Mix and disperse components (15) to (22) (component (C)) and components (24) to (25) (component (D)).

[0193] c. Add b to a, then add component (23), components (26) to (28) (component (E)), and heat and mix at 80 to 110°C.

[0194] Process 2 (2-1):

[0195] d. Use a roll mill to uniformly mix and disperse c at 10°C to 60°C.

[0196] e. Add components (8) to (14) (component (B) etc.) and component (29) (component (F)) to component (d) and heat and mix at 80°C. (Cosmetic composition)

[0197] Process 3:

[0198] f. Fill e into a lipstick rubber mold (12φ) container at 100°C or higher than the melting point of (component (A) etc.) while stirring.

[0199] Step 4:

[0200] g. f was cooled at -10 ° C to obtain an oily stick lipstick.

[0201] Example 1-2 to Example 1-12

[0202] The oil-based stick lipsticks shown in Table 6 below were prepared using Manufacturing Methods 2 to 12. Similarly, the following evaluation methods were used to evaluate (1) speed without secondary adhesion, (2) color durability, (3) smooth spreading, (4) prevention of in-process separation, and (5) release properties, and comparisons were made with Example 1 (Manufacturing Method 1).

[0203] [Table 6]

[0204]

[0205] Manufacturing Method

[0206] (Manufacturing method 2)

[0207] In the process of (Production Method 1), the production was carried out by replacing step 1:b with the following step.

[0208] "b. Add components (15) to (22) (component (C)), components (24) to (25) (component (D)), components (26) to (28) (component (E)), and component (23) to component a, and mix at 110°C."

[0209] (Manufacturing method 3)

[0210] In the process of (Production Method 1), step 2 (2-1): e is replaced with the following step to produce.

[0211] e. Add ingredients (8) to (14) (ingredient (B) etc.) and ingredient (29) (ingredient (F)) to ingredient (d), and heat and mix at 110°C. (Cosmetic composition)

[0212] (Manufacturing method 4)

[0213] In the process of (Production Method 1), step 2 (2-1): e is replaced with the following step to produce.

[0214] "e. Add ingredients (8) to (14) (ingredient (B) etc.) and ingredient (29) (ingredient (F)) to the mixture in step (d), and heat and mix at 30°C. (Cosmetic composition)"

[0215] (Manufacturing method 5)

[0216] In the process of (Production Method 1), the production was carried out by replacing step 1: c with the following step.

[0217] c. Add b to a, then add component (23), components (26) to (28) (component (E)), heat and mix at 110°C, add component (29) (component (F)), and heat and mix at 70°C.

[0218] e. Delete the step of adding ingredient (29) (ingredient (F)) from the process.

[0219] (Manufacturing Method 6)

[0220] In the process of (Production Method 1), step 2 (2-1): e is replaced with the following step to produce.

[0221] "e. Add ingredients (8) to (14) (ingredient (B) etc.) to d, heat and mix at 80°C, add ingredient (29) (ingredient (F)), and add and mix at 40°C. (Cosmetic composition)"

[0222] (Manufacturing method 7)

[0223] In the process of (Production Method 1), step 2 (2-1): e is replaced with the following step to produce.

[0224] "e. Add components (8) to (14) (component (B) etc.) and component (29) (component (F)) to step d, delete component (E) from the addition in step c, transfer to step e, and heat and mix at 80°C. (Cosmetic composition)".

[0225] (Manufacturing method 8)

[0226] In the process of (Production Method 1), step 3:f is replaced with the following step to produce.

[0227] "f. Fill e into a 12φ stainless steel container, a metal mold for lipstick, at a temperature of 100°C or higher, above the melting point of (component (A) etc.), while stirring."

[0228] (Manufacturing Method 9)

[0229] In the process of (Production Method 1), step 3:f is replaced with the following step to produce.

[0230] "f. Fill e into a 12φ PP capsule container of lipstick at a temperature of 100°C or higher, above the melting point of (component (A) etc.), while stirring."

[0231] (Manufacturing Method 10)

[0232] In the process of (Production Method 1), step 2 (2-1): d is replaced with the following step to produce.

[0233] "d. Use a high viscosity mixer to uniformly mix and disperse c at 10°C to 60°C."

[0234] (Manufacturing Method 11)

[0235] In the process of (manufacturing method 1),

[0236] Set step 1:c as the following step:

[0237] c. Add b to a, then add component (23), components (26) to (28) (component (E)), and heat and mix at 110°C.

[0238] As step 2 (2-2): d is set to the following step:

[0239] "d. Add ingredients (8) to (14) (ingredient (B) etc.) and heat and mix at 80°C. Use a roll mill at 10°C to 60°C to uniformly mix and disperse."

[0240] Delete "the step of adding components (8) to (14) (component (B) etc.) from step d" from e.

[0241] And replace it with the following process to produce.

[0242] "e. Add ingredient (29) (ingredient (F)) and heat and mix at 80°C. (Cosmetic composition)" (Manufacturing method 12)

[0243] In the process of (manufacturing method 1),

[0244] Set step 1:c as the following step:

[0245] c. Add b to a, then add component (23), components (26) to (28) (component (E)), heat and mix at 110°C, add component (29) (component (F)), and heat and mix at 80°C.

[0246] As step 2 (2-2), d is set to the following step:

[0247] "d. Add ingredients (8) to (14) (ingredient (B) etc.) and heat and mix at 80°C. Mix and disperse uniformly using a roll mill at 10°C to 60°C. (Cosmetic composition)"

[0248] And replace it with the manufacturing process with e deleted.

[0249] (Evaluation method)

[0250] (1) Speed ​​without secondary attachment effect;

[0251] (2) Color persistence;

[0252] (3) Smooth spreading.

[0253] Regarding the following items (1) to (3), 12 professional cosmetics evaluation panelists conducted usage tests on each sample. Each panelist used the oil-based stick lipsticks from the Examples and Comparative Examples and evaluated and scored them on a 5-point scale based on the following absolute evaluation criteria. For each sample, the panelists' scores were summed up, the average value was calculated, and the sample was judged according to the following criteria. Regarding (1) Speed ​​of secondary adhesion, each sample was applied to the lips for 1 minute and then wiped with a paper towel to evaluate whether secondary adhesion was suppressed. Regarding (2) Color durability, each sample was applied to the lips and evaluated for color durability 8 hours later. Regarding (3) Smooth spreading, each sample was evaluated for smooth spreading when applied to the lips.

[0254] <Evaluation items>

[0255] (1) Speed ​​without secondary attachment effect;

[0256] (2) Color persistence;

[0257] (3) Smooth spreading.

[0258] Absolute Evaluation Criteria

[0259] (Rating): (Evaluation)

[0260] 5: Very good;

[0261] 4: Good;

[0262] 3: Neither;

[0263] 2: Poor;

[0264] 1: Very poor.

[0265] <Five-level evaluation criteria>

[0266] (Judgment): (Evaluation)

[0267] AA: 4.5 or above;

[0268] A: 4.0 or higher and lower than 4.5;

[0269] B: 3.5 or higher and lower than 4.0;

[0270] C: 3.0 or higher and lower than 3.5;

[0271] D: Less than 3.0 points.

[0272] (4) Preventing separation within the process

[0273] To evaluate the prevention of in-process separation immediately before filling, the stick-shaped cosmetics of the Examples and Comparative Examples were dissolved at 110°C, 50g of which was then filled into a cylindrical glass bottle with a diameter of 4cm and a height of 8cm. The state of the bottle was observed after standing for 10 minutes while continuing to heat, and the evaluation was conducted according to the following criteria. This evaluation verifies the in-process separation behavior of the oil and colorant during the actual manufacturing process.

[0274] (Criteria for preventing separation within the process)

[0275] (Judgment): (Evaluation)

[0276] AA: No separation of oil / uneven color in the cosmetic product;

[0277] A: Slight unevenness / separation of the cosmetic color was observed, but it became uniform after shaking once.

[0278] B: Uneven color / separation of the cosmetic was observed, but became uniform after shaking twice;

[0279] C: Separation was observed in the cosmetic product, and it was not uniform even after shaking twice;

[0280] D: A lot of separation occurs in the cosmetics.

[0281] (5) Demolding

[0282] Regarding the releasability, each sample was pulled out to the end after being molded into a rod shape, and the appearance was visually evaluated according to the following criteria.

[0283] (Mold release criteria)

[0284] (Judgment): (Evaluation)

[0285] AA: Almost no peeling, cracking, breaking or defect is visible (accounting for less than 2.5% of the appearance);

[0286] A: Either peeling or chipping is slightly visible (the proportion in appearance is less than 2.5% to 5%);

[0287] B: Peeling and chipping are seen (accounting for less than 2.5% to 5% of the appearance);

[0288] C: Either peeling or chipping is clearly visible. Although the impact on usability is small, the product's appearance quality is unacceptable (the proportion of appearance is 5 to less than 10%).

[0289] D: Clear peeling, cracking, breaking, and chipping were observed, which were at a level that affected the usability (accounting for 10% or more of the appearance).

[0290] As shown in the results of Tables 1 to 5, the oil-based stick lipsticks of Examples 1 to 47 of the present invention are superior to the oil-based stick lipsticks of Comparative Examples 1 to 4 in terms of color durability, smooth spreading, speed without secondary adhesion effect, prevention of in-process separation, and mold release properties.

[0291] On the other hand, in Comparative Example 1 without component (A), color durability, smooth spreading, speed without secondary adhesion effect, and releasability were insufficient, and consequently, a satisfactory product could not be obtained.

[0292] In Comparative Example 2, which did not contain component (B), color durability, smooth spreading, speed without secondary adhesion effect, and mold release properties were insufficient, and a satisfactory product could not be obtained.

[0293] In Comparative Example 3, which did not contain component (C), color durability, smooth spreading, speed without secondary adhesion effect, and mold release properties were insufficient, and a satisfactory product could not be obtained.

[0294] In Comparative Example 4, which did not contain the component (E), the smooth spreading and the secondary adhesion effect were insufficient, and a satisfactory product could not be obtained.

[0295] As shown 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 longevity, smooth spreading, speed without secondary adhesion, prevention of in-process separation, and mold release properties. In particular, Example 1 is superior in terms of surface texture.

[0296] In Example 1-2 of Manufacturing Method 2, since component (C) and component (D) were not brought into contact beforehand, a slight decrease in color durability was observed. However, the color was very excellent in terms of smooth spreading, speed without secondary adhesion, prevention of in-process separation, and demolding properties.

[0297] In Example 1-3 of Manufacturing Method 3, the fluidity of the material produced in Step 1 was improved and the viscosity was reduced due to the high temperature at which Component (B) was added. This facilitated contact between Component (B) and Component (D), and a tendency for separation to become slightly easier during the process was observed. However, the product was very excellent in terms of color durability, smooth spreading, speed without secondary adhesion, and demolding properties.

[0298] In Example 1-4 of Manufacturing Method 4, the viscosity of the product produced in Step 1 was high due to the low temperature at which Component (B) was added. Component (B) was difficult to mix, and due to the inability to mix evenly, it tended to slightly separate during the process. Furthermore, a slight decrease in smooth spreading was observed. However, the product was very excellent in terms of color durability, speed without secondary adhesion, and release properties.

[0299] In Example 1-5 of Manufacturing Method 5, component (F) is added in step 1 rather than in step 2. Although there is a tendency for smooth spreading to decrease slightly, the color durability, speed without secondary adhesion effect, prevention of separation in the process, and demolding properties are very excellent.

[0300] In Examples 1-6 of Manufacturing Method 6, the temperature for adding component (F) was lowered in Step 2. However, due to the increased viscosity of the previous composition, component (F) was difficult to mix uniformly, and a slight tendency to disrupt the continuous wax crystal structure formed by components (A) to (E) was observed. However, the results were very excellent in terms of color durability, speed without secondary adhesion effect, and prevention of separation within the process.

[0301] In Example 1-7 of Manufacturing Method 7, step 1 is changed to adding component (E) in step 2. Although the color durability effect is slightly reduced due to the contact between component (D) and component (E), it is very excellent in terms of smooth spreading, speed without secondary adhesion effect, prevention of separation during the process, and demolding properties.

[0302] In Example 1-9 of Manufacturing Method 9, the container was changed in Step 3, which affected the releasability and smooth spreading, but it was excellent in color durability, speed without secondary adhesion, and prevention of separation during the process.

[0303] Examples 1-10 of Manufacturing Method 10 have different dispersion equipment in Step 2, and the color durability is slightly affected due to the influence of component (D), but are very excellent in terms of smooth spreading, speed without secondary adhesion effect, prevention of separation in the process, and demolding properties.

[0304] In Examples 1-11 and 1-12 of Manufacturing Method 11, instead of using the step (2-1) of adding component (B) post-process 2, a step (2-2) was used in which component (B) was pre-added and then dispersed. Consequently, during dispersion, the dispersed component (D) was expelled through component (B), which tended to promote separation within the process and sometimes affected releasability. Furthermore, in Examples 1-12 of Manufacturing Method 12, in which component (F) was added before step 2, a tendency was observed to reduce color durability and smooth spreading, but the speed without the secondary adhesion effect was maintained.

[0305] Example 48: Oil-based stick eye shadow

[0306]

[0307]

[0308] *12: LIPWAX A-4 (manufactured by Japan Natural Products Co., Ltd.)

[0309] A. Components (1) to (3) were uniformly dissolved at 110°C.

[0310] B. Mix and disperse components (7) to (24).

[0311] C. Add B and components (25) to (26) to A and mix at 110°C.

[0312] D. Use a roll mill to uniformly mix and disperse C at 10°C to 60°C.

[0313] E. Add components (4) to (6) to D, and heat and mix at 80°C. (Step (2-1))

[0314] F. Add ingredient (27) to E and heat at 80°C to mix.

[0315] G. Fill F into a rubber mold (12φ) container at 100°C or above while stirring.

[0316] H. G was cooled at -10°C to obtain an oily stick eye shadow.

[0317] The oil-based stick eye shadow of Example 48 was excellent in color durability, smooth spreading, speed without secondary adhesion effect, prevention of separation during the process, and releasability.

[0318] Example 49: Oil-based stick concealer

[0319]

[0320]

[0321] *13: Rice bran wax SS-I (manufactured by Boso Oil & Fats Co., Ltd.)

[0322] A. Components (1) to (5) were uniformly dissolved at 110°C.

[0323] B. Mix and disperse components (8) to (22).

[0324] C. Add B and ingredient (23) to A and mix at 110°C.

[0325] D. Use a roll mill to uniformly mix and disperse C at 10°C to 60°C.

[0326] E. Add components (6) to (7) to D and heat and mix at 80°C. (Step (2-1))

[0327] F. Add ingredient (24) to E and heat at 80°C to mix.

[0328] G. Fill F into a rubber mold (12φ) container at 100°C or above while stirring.

[0329] H. G was cooled at -10°C to obtain an oily stick concealer.

[0330] The oil-based stick concealer of Example 49 was excellent in color longevity, smooth spreading, speed without secondary adhesion, prevention of in-process separation, and releasability.

[0331] Example 50: Oil-based stick blush

[0332]

[0333]

[0334] A. Components (1) to (3) were uniformly dissolved at 110°C.

[0335] B. Mix and disperse components (6) to (17).

[0336] C. Add B and ingredients (18) to (20) to A and mix at 110°C.

[0337] D. Use a roll mill to uniformly mix and disperse C at 10°C to 60°C.

[0338] E. Add components (4) to (5) to D and heat and mix at 80°C. (Step (2-1))

[0339] F. Add ingredient (21) to E and heat at 80°C to mix.

[0340] G. Fill F into a rubber mold (12φ) container at 100°C or above while stirring.

[0341] H. G was cooled at -10°C to obtain an oily stick blush.

[0342] The oil-based stick blush of Example 50 was excellent in color durability, smooth spreading, speed without secondary adhesion effect, prevention of separation during the process, and mold release properties.

Claims

1. A method for producing an oil-based stick cosmetic comprising the following ingredients (A) to (E): (A) wax, (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil, (C) Non-volatile liquid ester oil, (D) Coloring powder, (E) polyols, The above-mentioned component (B) contains (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane, The mass ratio of the component (B) to the component (C) is (B) / (C) of 0.5 to 3.

0. The method for producing the oil-based stick cosmetic comprises the following steps 1 to 4: Step 1: Dissolving the component (A) at a temperature not lower than the melting point of the component (A), mixing the components (C) and (D) in advance, and then adding the components (C) and (D) and mixing them with the component (A); Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 60 to 110°C to obtain a cosmetic composition; or Step (2-2) Add the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and disperse it at 60 to 110° C. to obtain a cosmetic composition. in, The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or 2; Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring; Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

2. The method for producing an oil-based stick cosmetic according to claim 1, wherein: The content of the component (E) is 0.05 to 1.5% by mass.

3. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein: The component (C) contains (C1) a nonvolatile liquid ester oil having a viscosity of less than 1,000 mPa·s at 25°C and (C2) a nonvolatile liquid ester oil having a viscosity of 10,000 mPa·s or more at 25°C.

4. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein: In the above-mentioned steps 1 and / or 2, a volatile oil as component (F) is further added.

5. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein: The above-mentioned step 2 is the above-mentioned step (2-1).

6. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein: The dispersion treatment in the above step 2 is a high shear dispersion treatment.

7. The method for producing an oil-based stick cosmetic according to claim 1 or 2, wherein: The container filled with the cosmetic composition in the above step 3 is a rubber mold or a metal mold.

8. An oil-based stick cosmetic comprising the following ingredients (A) to (E): (A) wax, (B) Dynamic viscosity at 25°C is 20 to 10,000 mm 2 / s non-volatile silicone oil, (C) Non-volatile liquid ester oil, (D) Coloring powder, (E) polyols, The above-mentioned component (B) contains (B1) methylphenyl polysiloxane and (B2) dimethyl polysiloxane, The mass ratio of the component (B) to the component (C) is (B) / (C) of 0.5 to 3.

0. The oil-based stick cosmetic is obtained by a production method comprising the following steps 1 to 4: Step 1: dissolving the component (A) at a temperature not lower than the melting point of the component (A), mixing the component (C) and the component (D) in advance, and then adding the component (C) and the component (D) to the component (A) and mixing them; Step 2: Step (2-1) The mixture obtained in the above step 1 is dispersed at 5 to 80°C, and the above component (B) is added and dispersed at 60 to 110°C to obtain a cosmetic composition; or Step (2-2) Add the above-mentioned component (B) to the mixture obtained in the above-mentioned step 1, and disperse it at 60 to 110° C. to obtain a cosmetic composition. in, The above-mentioned component (E) is added, mixed or dispersed in step 1 and / or 2; Step 3: heating the cosmetic composition obtained in step 2 at 80-110° C. and filling the mixture into a container while stirring; Step 4: A step of cooling the cosmetic composition filled in the container obtained in the above step 3.

9. The oil-based stick cosmetic according to claim 8, wherein The content of the component (B) is 25 to 55% by mass.

10. The oil-based stick cosmetic according to claim 8 or 9, 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.

11. The oil-based stick cosmetic according to claim 8 or 9, wherein The average dynamic viscosity ratio (B1) / (B2) of the component (B1) to the component (B2) is 1-250.

12. The oil-based stick cosmetic according to claim 8 or 9, wherein The component (C) includes (C1) polyglyceryl-2 triisostearate and (C2) one or more selected from the group consisting of (VP / hexadecene) copolymer and dimerized linoleyl bisisostearyl dimerized linoleate.

13. The oil-based stick cosmetic according to claim 8 or 9, wherein the component (E) is one or more selected from the group consisting of 1,3-butylene glycol, dipropylene glycol, 1,2-hexanediol, glycerin, and tripropylene glycol.

14. The oil-based stick cosmetic according to claim 8 or 9, further comprising a volatile oil as component (F).

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