cosmetic
A cosmetic composition with specific ingredients and ratios addresses compatibility and usability issues on wet hair, ensuring non-dripping, non-stickiness, long-lasting luster, and stability, while maintaining transparency.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-03-05
AI Technical Summary
Existing hair cosmetics, particularly those containing oils, face challenges with compatibility on wet hair, usability issues such as non-dripping and non-stickiness, and lack of long-lasting gloss, while also being opaque in appearance.
A cosmetic composition comprising polyhydric alcohol with a refractive index of 1.42 to 1.47, silicone oil, nonionic surfactants with an HLB of 7 or more, amphiphilic polymers, and specific ratios of water, along with optional components like N-alkylmethyl taurine salt, to enhance compatibility, usability, and stability over time.
The composition achieves excellent compatibility with wet hair, is non-dripping and non-sticky, maintains long-lasting luster, and is stable over time with enhanced transparency.
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a cosmetic preparation. [Background technology]
[0002] There are various types of cosmetics, such as water-based, oil-based, and emulsion-type cosmetics. Among these, oil-based cosmetics have excellent aesthetic appeal due to their transparent appearance, and are widely used as cleansing cosmetics and leave-in-bath hair cosmetics such as hair oils, taking advantage of the properties of oils by containing a large amount of oil.
[0003] Oily hair cosmetics, such as conventional hair oils, are often used on dry hair and are therefore unsuitable for wet hair after shampooing, rinse-off conditioners, or treatments. This is due in part to the fact that oily hair cosmetics containing large amounts of oily agents do not blend well with wet hair. To address the issue of poor blendability into wet hair, a hair cosmetic technology has been disclosed that, for example, contains a phosphate-crosslinked starch derivative, a tertiary amine surfactant, and an organic acid having 3 to 6 carbon atoms, and when applied to wet hair, it quickly blends into wet hair as a cream-like formulation (see, for example, Patent Document 1). However, emulsion-type hair cosmetics have the drawback of being opaque in appearance and containing a relatively reduced amount of oily agent, thereby impairing the characteristics of oily hair cosmetics, such as non-stickiness and gloss.
[0004] Furthermore, as cosmetics containing a large amount of oil, highly oil-containing aqueous cosmetics in which a large amount of oil is held in a polyhydric alcohol have also been studied. For example, a technology for a highly oil-containing aqueous cosmetic that contains a specific amount of oily component, a specific amount of polyhydric alcohol, a nonionic surfactant having a sterol skeleton, carotenoids, and a specific amount of water, and that exhibits an excellent makeup removal effect when massaged, has been disclosed (e.g., Patent Document 2). [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-182807 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-193546 Summary of the Invention [Problem to be solved by the invention]
[0006] However, the technology disclosed in Patent Document 1 has excellent compatibility with wet hair, but is insufficient in terms of usability such as non-dripping, non-stickiness, and long-lasting gloss. Furthermore, because it is an emulsion type, no consideration was given to the transparency of the appearance. Furthermore, the technology disclosed in Patent Document 2 does not mention compatibility with wet hair, sustained gloss, or stability over time. Furthermore, the technology in Patent Document 2 relates to cleansing cosmetics, and does not take into consideration hair cosmetics, particularly leave-in hair cosmetics.
[0007] Therefore, an object of the present invention is to provide a cosmetic that has excellent compatibility with wet hair, and also has excellent usability and stability over time. [Means for solving the problem]
[0008] In view of these circumstances, the present inventors have conducted extensive research and have found that the above-mentioned problems can be solved by a cosmetic composition containing a polyhydric alcohol having a refractive index of 1.42 to 1.47, a silicone oil, a specific amount of a nonionic surfactant having an HLB of 7 or more, an amphiphilic polymer, and a specific amount of water, wherein the mass ratio of the silicone oil to the polyhydric alcohol is within a specific range, thereby completing the present invention.
[0009] That is, the present invention provides the following components (A) to (E): [1] The following components (A) to (E): (A) Polyhydric alcohol with a refractive index of 1.42 to 1.47 (B) Silicone oil (C) Nonionic surfactants with an HLB of 7 or more: 1% by mass or less (D) Amphiphilic polymers (E) Water 10% by mass or less wherein the mass ratio (B) / (A) of the component (B) to the component (A) is 1 to 30. [2] The cosmetic preparation according to [1], wherein the content of the component (B) is 20 to 70% by mass. [3] The cosmetic preparation according to [1] or [2], wherein the component (D) is at least one selected from the group consisting of acrylic acid / alkyl methacrylate copolymer, (acrylates / beheneth-25 methacrylate) copolymer, ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer, ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, sodium acrylate / sodium acryloyldimethyltaurate copolymer, PEG-240 / decyltetradeceth-20 / hexamethyldiisocyanate copolymer, and hydrophobized hydroxypropyl cellulose. [4] The cosmetic preparation according to [1] or [2], wherein the component (C) is a nonionic surfactant having a sterol skeleton. [5] The cosmetic preparation according to [1] or [2] further contains component (F) N-alkylmethyl taurine salt. [6] The cosmetic preparation according to [1] or [2] has a transmittance of 70% or more at 590 nm. [7] The cosmetic according to [1] or [2] is a leave-on cosmetic. [8] The cosmetic composition according to [1] or [2], which is a hair cosmetic composition. [9] The cosmetic composition described in [8] is to be used on wet hair. [Effects of the Invention]
[0010] The cosmetic composition of the present invention has excellent compatibility with wet hair, is non-dripping and non-sticky, has excellent long-lasting luster, and is also stable over time. Furthermore, the cosmetic of the present invention has excellent transparency in appearance. DETAILED DESCRIPTION OF THE INVENTION
[0011] Preferred embodiments for carrying out the present invention will be described below. Note that the embodiment described below shows one example of a typical embodiment of the present invention, and the scope of the present invention should not be construed narrowly by this. Furthermore, percentages in this specification are expressed by mass unless otherwise specified. Furthermore, the upper limit (or less) and lower limit (or more) of each numerical range (to) can be arbitrarily combined as desired. In this specification, the range "X to Y" includes X and Y and means "X or more and Y or less."
[0012] [Component (A): Polyhydric alcohol with a refractive index of 1.42 to 1.47]
[0013] The polyhydric alcohol having a refractive index of 1.42 to 1.47 used in the present invention as component (A) is not particularly limited as long as it is one commonly used in cosmetics. Specific examples include propylene glycol (refractive index: 1.43 (20°C)), dipropylene glycol (refractive index: 1.44 (20°C)), 1,3-butylene glycol (refractive index: 1.44 (20°C)), and glycerin (refractive index: 1.47 (20°C)). One or more of these may be used in combination as needed. Among these, from the viewpoints of external transparency and non-stickiness, at least one selected from the group consisting of propylene glycol, dipropylene glycol, and 1,3-butylene glycol is preferred, at least one selected from the group consisting of propylene glycol and 1,3-butylene glycol is more preferred, and propylene glycol is particularly preferred. In the present invention, the refractive index is measured at 20°C.
[0014] The content of component (A) used in the present invention is not particularly limited, but the lower limit is preferably 5% by mass (hereinafter simply abbreviated as "%") or more, more preferably 8% or more, and even more preferably 10% or more. The upper limit is preferably 40% or less, more preferably 35% or less, even more preferably 30% or less, and particularly preferably 25% or less. The content of component (A) is preferably 5 to 40%, more preferably 5 to 35%, even more preferably 5 to 30%, even more preferably 8 to 30%, more preferably 10 to 30%, and particularly preferably 10 to 25%. This range is more preferable because it provides excellent compatibility with wet hair, non-stickiness, stability over time, and transparency.
[0015] [Component (B): Silicone oil]
[0016] The silicone oil (B) used in the present invention is not particularly limited as long as it is one normally used in cosmetics. The state of the silicone oil is not particularly limited, but from the viewpoint of excellent usability, it is more preferable that it is liquid at 25°C. Examples of such silicone oils include dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, methyltrimethicone, polyether-modified methylpolysiloxane, oleyl-modified methylpolysiloxane, polyvinylpyrrolidone-modified methylpolysiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, caprylyl trimethicone, methylphenylpolysiloxane, and dimethiconol. One or more of these can be appropriately selected and used. In the present invention, it is more preferable to use dimethylpolysiloxane from the viewpoints of non-stickiness and long-lasting gloss.
[0017] The content of component (B) used in the present invention is not particularly limited, but the lower limit is preferably 20% or more, more preferably 25% or more, and even more preferably 30% or more. The upper limit is preferably 70% or less, more preferably 60% or less, even more preferably 55% or less, even more preferably 50% or less, particularly preferably 48%, and most preferably 45% or less. The content of component (B) is preferably 20 to 70%, more preferably 20 to 60%, even more preferably 20 to 55%, even more preferably 20 to 50%, more preferably 25 to 50%, particularly preferably 30 to 50%, most preferably 30 to 48%, and more preferably 30 to 45%. This range is more preferable because it provides excellent usability, such as good blendability with wet hair, non-stickiness, and long-lasting luster, as well as stability over time.
[0018] The viscosity of the silicone oil (component (B)) used in the present invention is not particularly limited, but from the viewpoints of good blendability to wet hair and non-stickiness, it is preferable to use a silicone oil with a viscosity of 5 to 500 mPa·s at 25°C. Furthermore, it is preferable to use a combination of silicone oils with different viscosities at 25°C. Specifically, it is preferable to combine a silicone oil with a viscosity of 5 to 500 mPa·s at 25°C with a silicone oil with a viscosity of 1,000 to 1,000,000 mPa·s at 25°C, and more preferably to combine a silicone oil with a viscosity of 10,000 to 1,000,000 mPa·s at 25°C. From the viewpoints of good blendability to wet hair, non-stickiness, and long-lasting shine, it is particularly preferable that the silicone oil is dimethylpolysiloxane. Examples of silicone oils having a viscosity of 5 to 500 mPa·s at 25°C include KF-96-6cs, KF-96-10cs, KF-96-20cs, and KF-96-100cs (all manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of dimethylpolysiloxanes having a viscosity of 10,000 to 1,000,000 mPa·s at 25°C include BY11-040, BY11-003, FZ-3115, FZ-3132, BY11-007, BY11-014, and BY11-026 (all manufactured by Toray Dow Corning Co., Ltd.), XF49-601, XF49-A3818, and XF49-B708. 2, XF49-B7083, XF49-811, XF49-703, XF49-813, XF49-B1747, XF49-B8324 (all manufactured by Momentive Corporation), Silicon KF-9012, KF-96H-10,000 CS, KF-96H-100,000 CS, KF-96H-1,000,000 CS (all manufactured by Shin-Etsu Chemical Co., Ltd.).
[0019] The content of silicone oils with different viscosities at 25°C is not particularly limited, but the content of silicone oils with viscosities at 25°C of 5 to 500 mPa·s is preferably 10 to 50%, more preferably 15 to 45%, and particularly preferably 20 to 40%. The content of silicone oils with viscosities at 25°C of 1,000 to 1,000,000 mPa·s is preferably 1 to 20%, more preferably 1 to 10%, even more preferably 2 to 8%, particularly preferably 2 to 6%, and most preferably 2.5 to 6%. This range is more preferable because it results in a cosmetic that blends well with wet hair, is non-sticky, and has excellent long-lasting luster.
[0020] In the present invention, the mass ratio (B) / (A) of the component (B) to the component (A) has a lower limit of 1 or more from the viewpoints of non-stickiness and stability over time, and preferably 1.2 or more, more preferably 1.4 or more, from the viewpoints of transparency and long-lasting luster. The upper limit is 30 or less, preferably 20 or less, more preferably 15 or less, from the viewpoints of good blendability into wet hair and long-lasting stability. From the viewpoints of non-dripping, non-stickiness, and long-lasting luster, it is even more preferably 10 or less, particularly preferably 7 or less, and most preferably 5 or less. Furthermore, the mass ratio (B) / (A) is 1 to 30, preferably 1 to 20, more preferably 1 to 15, even more preferably 1 to 10, even more preferably 1.2 to 10, and particularly preferably 1.4 to 5. This range is more preferable because it results in a cosmetic composition that has excellent blendability into wet hair, excellent usability, and long-lasting stability.
[0021] [Component (C): Nonionic surfactant with HLB of 7 or more]
[0022] The component (C) used in the present invention, a nonionic surfactant having an HLB of 7 or more, is not particularly limited as long as it is one that is commonly used in cosmetics. If the HLB of the nonionic surfactant is less than 7, it will not be stable and it will be difficult to achieve the effects of the present invention. In the present invention, from the viewpoint of stability over time, the HLB is preferably 7 to 19, more preferably 8 to 18, and particularly preferably 9 to 18.
[0023] Here, HLB (Hydphile-Lipophile Balance) in the present invention is an index showing the balance of hydrophilicity and lipophilicity, and is calculated by Oda and Teramura et al. using the following formula (1): HLB=(ΣInorganic value / ΣOrganic)×10...(Formula 1) Here, Σinorganic value / Σorganic value is called IOB (Inorganic-Organic balance), and can be calculated by adding up the "inorganic value" and "organic value" of atoms and functional groups that make up organic compounds such as surfactants, based on the "inorganic value" and "organic value" set for each type of atom and functional group (see "Organic Conceptual Diagram - Fundamentals and Applications" by Yoshio Koda, pp. 11-17, Sankyo Publishing, 1984).
[0024] The nonionic surfactant having an HLB of 7 or more is not particularly limited, but specific examples include polyglyceryl fatty acid esters, polyoxyethylene castor oil, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monooleate, polyoxyethylene glyceryl fatty acid esters such as polyoxyethylene glyceryl monooleate, polyoxyethylene glyceryl monoisostearate, polyethylene glycol fatty acid esters such as polyethylene glycol monoisostearate, polyoxyethylene alkyl ethers, polyoxyethylene alkyl ether phosphates, polyoxypropylene alkyl ethers, polyoxypropylene alkyl ether phosphates, polyoxyethylene alkylphenyl ethers, polyoxyethylene phytostanol ethers, polyoxyethylene phytosterol ethers, polyoxyethylene cholestanol ethers, polyoxyethylene cholesteryl ethers, polyoxyethylene-modified organopolysiloxanes, and other polyoxyethylene adduct-type nonionic surfactants, and these can be used alone or in combination. Among these, nonionic surfactants having a sterol skeleton, such as polyoxyethylene phytosterol ether and polyoxyethylene cholesteryl ether, are more preferred from the viewpoints of non-stickiness and stability over time.
[0025] Examples of the structure of the sterol moiety of the nonionic surfactant having a sterol skeleton include animal sterol skeletons such as cholesterol, cholestanol, lanosterol, cerebrosterol, dehydrocholesterol, and coprostanol; plant sterol skeletons such as β-sitosterol, stigmasterol, campesterol, ergosterol, fucosterol, spinasterol, and brassicasterol; and microbial sterol skeletons such as mycosterol and zymosterol, and hydrogenated or hydrated derivatives of these may also be used. Among these, phytosterol and cholesterol are particularly preferred from the viewpoint of stability over time.
[0026] Nonionic surfactants having a sterol skeleton have a polyoxyalkylene ether bond to the sterol skeleton, and examples thereof include those in which polyoxyethylene groups (hereinafter abbreviated as POE), polyoxypropylene groups, polyoxybutylene groups, etc. are appropriately added in a random or block manner. More specifically, polyoxyethylene cholesteryl ethers such as POE (10) cholesteryl ether, POE (15) cholesteryl ether, POE (20) cholesteryl ether, POE (24) cholesteryl ether, and POE (30) cholesteryl ether; polyoxyethylene cholestanols such as POE (20) cholestanol, POE (25) cholestanol, and POE (30) cholestanol; polyoxyethylene phytosterols such as POE (5) phytosterol, POE (10) phytosterol, POE (20) phytosterol, POE (25) phytosterol, and POE (30) phytosterol; polyoxyethylene phytostanols such as POE (20) phytostanol, POE (25) phytostanol, and POE (30) phytostanol; and the like. These may be used alone or in combination of two or more types, as needed. The parenthesized values in the examples indicate the average number of moles of ethylene oxide added. Among these, polyoxyethylene cholesteryl ethers and polyoxyethylene phytosterols are preferred from the viewpoints of ease of use and stability over time. Furthermore, POE(10-30) cholesterol and POE(10-30) phytosterol, and POE(20-30) cholesterol and POE(20-30) phytosterol are more preferred. Examples of commercially available products include EMALEX CS-10, EMALEX CS-20, and EMALEX CS-30 (all manufactured by Nippon Emulsion Co., Ltd.), NIKKOL BPS-10, NIKKOL BPS-20, and NIKKOL BPS-30 (all manufactured by Nippon Surfactant Industry Co., Ltd.), and Bellpol DC-30 (manufactured by Nippon Fine Chemical Co., Ltd.), all of which can be suitably used in the present invention.
[0027] By further containing polyoxyethylene alkyl ether phosphate as component (C) in addition to the nonionic surfactant having a sterol skeleton, it becomes possible to further improve stability over time while still exhibiting the effects of the present invention, such as good compatibility with wet hair. Polyoxyethylene alkyl ether phosphate is a triester compound of polyoxyethylene alkyl ether and phosphoric acid. The polyoxyethylene alkyl ether phosphate is not particularly limited as long as it has an HLB of 7 or more, but the fatty acid chain length is preferably in the range of 8 to 22 carbon atoms, more preferably 10 to 18 carbon atoms. The fatty acid may be saturated or unsaturated, and may be linear or branched. The polyoxyethylene chain length is preferably in the range of 1 to 20, more preferably 2 to 12. Examples include polyoxyethylene lauryl ether phosphate, polyoxyethylene myristyl ether phosphate, polyoxyethylene cetyl ether phosphate, polyoxyethylene stearyl ether phosphate, polyoxyethylene oleyl ether phosphate, polyoxyethylene behenyl ether phosphate, polyoxyethylene alkyl (10-15) ether phosphate, polyoxyethylene dialkyl (12-15) ether phosphate, polyoxyethylene tricetyl ether phosphate, polyoxyethylene tristearyl ether phosphate, etc., and one type may be used alone, or two or more types may be used in combination. Among these, from the viewpoints of non-stickiness and stability over time, one or two or more types selected from polyoxyethylene cetyl ether phosphate and polyoxyethylene stearyl ether phosphate are preferred.
[0028] The upper limit of the content of component (C) used in the present invention is preferably 1% or less, more preferably 0.8% or less, and even more preferably 0.7% or less, from the viewpoint of non-stickiness and the like. The lower limit is not particularly limited, but from the viewpoint of stability over time and the like, it is preferably 0.01% or more, more preferably 0.05% or more, even more preferably 0.1% or more, and particularly preferably 0.3% or more. The content of component (C) is preferably 0.01 to 1%, more preferably 0.05 to 1%, even more preferably 0.05 to 0.8%, even more preferably 0.05 to 0.7%, particularly preferably 0.1 to 0.7%, and most particularly preferably 0.3 to 0.7%. This range is more preferable because it results in a cosmetic that blends well with wet hair and has even better usability and stability over time.
[0029] When polyoxyethylene alkyl ether phosphate is used as component (C), its content is not particularly limited, but is preferably 0.01 to 0.5%, more preferably 0.05 to 0.2%, which is more preferable because it can further improve stability over time while favorably exhibiting the effects of the present invention, such as good compatibility with wet hair and non-stickiness.
[0030] In the present invention, the mass ratio (A) / (C) of component (A) to component (C) is preferably 10 or more, more preferably 15 or more, and even more preferably 20 or more, from the viewpoints of blendability into wet hair and stability over time. The upper limit is preferably 400 or less, more preferably 200 or less, even more preferably 100 or less, and even more preferably 80 or less, from the viewpoints of transparency, blendability into wet hair, non-stickiness, and stability over time. The mass ratio (A) / (C) is preferably 10 to 400, more preferably 10 to 200, even more preferably 10 to 100, even more preferably 10 to 80, especially preferably 10 to 70, and most preferably 20 to 50. A range within this range is more preferable, as it results in a cosmetic composition that is excellent in blendability into wet hair and has even better usability and stability over time.
[0031] In the present invention, the mass ratio (B) / (C) of the component (B) to the component (C) is preferably 35 or more, more preferably 40 or more, even more preferably 50 or more, and even more preferably 60 or more, from the viewpoints of transparency, non-stickiness, sustained luster, and stability over time. The upper limit is preferably 700 or less, more preferably 400 or less, even more preferably 200 or less, and even more preferably 100 or less, from the viewpoints of stability over time. From the viewpoints of blendability with wet hair and stability over time, it is particularly preferably 90 or less, and most preferably 85 or less. Furthermore, the mass ratio (B) / (C) is preferably 35 to 700, more preferably 35 to 400, even more preferably 35 to 200, even more preferably 35 to 100, particularly preferably 35 to 90, most preferably 60 to 90, and more preferably 60 to 85. This range is more preferable because it results in a cosmetic composition that blends well with wet hair and has excellent usability and stability over time.
[0032] [Component (D): Amphiphilic polymer]
[0033] The amphiphilic polymer (component (D)) used in the present invention is a polymeric compound that can be used alone without a surfactant, or with a small amount of surfactant, to form a stable cosmetic composition. Examples include acrylates / alkyl methacrylate copolymer (acrylates / C10-30 alkyl acrylate crosspolymer), acrylates / beheneth-25 methacrylate copolymer, ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer, ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, sodium acrylate / sodium acryloyldimethyltaurate copolymer, PEG-240 / decyltetradeceth-20 / hexamethyldiisocyanate copolymer, hydrophobized hydroxypropyl cellulose, and hydroxypropyl starch phosphate 2-methacryloyloxyphosphorylcholine / butyl methacrylate copolymer. At least one of these components can be used.
[0034] Among these, from the viewpoints of non-dripping and stability over time, it is preferable to use, as component (D), an acrylic acid / alkyl methacrylate copolymer, an (acrylates / beheneth-25 methacrylate) copolymer, an ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer, an ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, a hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, or a sodium acrylate / sodium acryloyldimethyltaurate copolymer; it is more preferable to use an acrylic acid / alkyl methacrylate copolymer, an (acrylates / beheneth-25 methacrylate) copolymer, an ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, or a sodium acrylate / sodium acryloyldimethyltaurate copolymer; and it is even more preferable to use an acrylic acid / alkyl methacrylate copolymer, an (acrylates / beheneth-25 methacrylate) copolymer, or an ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer. Commercially available products that can be used include Aristoflex HMB (manufactured by Clariant Japan Co., Ltd.), PEMULEN TR-1 (manufactured by Lubrizol Advanced Materials), and NOVETHIX L-10 POLYMER (manufactured by Lubrizol Advanced Materials), and one or more of these can be used.
[0035] The content of component (D) used in the present invention is not particularly limited, but from the viewpoints of non-dripping and stability over time, the lower limit is preferably 0.01% or more, and more preferably 0.05% or more. From the viewpoints of non-dripping and stability over time, the upper limit is preferably 0.5% or less, more preferably 0.3% or less, even more preferably 0.2% or less, and particularly preferably 0.1% or less. Furthermore, the content of component (D) is preferably 0.01 to 0.5%, more preferably 0.05 to 0.3%, even more preferably 0.05 to 0.2%, and particularly preferably 0.05 to 0.1%. This range is more preferable because it allows the effects of the present invention, such as non-dripping and excellent stability over time and good compatibility with wet hair, to be optimally exhibited.
[0036] [Component (E): Water]
[0037] Component (E) water used in the present invention is contained as a component that forms the external phase of the present cosmetic together with component (A). The water is not particularly limited as long as it is water that is typically used in cosmetics, and examples include tap water, purified water, hot spring water, deep sea water, and steam-distilled water derived from plants such as lavender water, rose water, and orange flower water, and one or more types can be used in combination as needed.
[0038] From the viewpoints of stability over time and transparency, the upper limit of the content of component (E) used in the present invention is preferably 10% or less, more preferably 8% or less, more preferably 6% or less, and particularly preferably 5% or less. The lower limit is preferably 0.1% or more, more preferably 0.5% or more, and even more preferably 1% or more. The content of component (E) is preferably 0.1 to 10%, more preferably 0.5 to 8%, even more preferably 1 to 8%, even more preferably 1 to 6%, and particularly preferably 1 to 5%. If the content of component (E) exceeds 10%, the stability over time may be poor, it may be difficult to maintain the transparency of the appearance, and the effects of the present invention may be insufficient.
[0039] In the present invention, the mass ratio (B) / (E) of component (B) to component (E) is preferably 3 or more, more preferably 4 or more, even more preferably 5 or more, particularly preferably 6 or more, and most preferably 8 or more, from the viewpoints of transparency and stability over time. The upper limit is preferably 30 or less, more preferably 20 or less, even more preferably 17 or less, and particularly preferably 15 or less, from the viewpoints of blendability into wet hair and stability over time. Furthermore, the mass ratio (B) / (E) is preferably 3 to 30, more preferably 3 to 20, even more preferably 4 to 17, even more preferably 5 to 15, particularly preferably 6 to 15, and most preferably 8 to 15. A content within this range is more preferable, as it results in a cosmetic that is excellent in blendability into wet hair and has even better usability and stability over time.
[0040] [Component (F): N-Alkylmethyltaurine salt]
[0041] In the present invention, by further containing component (F) N-alkylmethyl taurine salt, it is possible to improve stability over time while satisfactorily exhibiting the effects of the present invention, such as good compatibility with wet hair. The N-alkylmethyl taurine salt preferably has 10 to 22 alkyl carbon atoms, more preferably 16 to 20. Examples of counter bases include sodium, potassium, ammonium, triethanolamine, arginine, lysine, histidine, and oxylysine. The N-alkylmethyl taurine salt may be an N-alkylmethyl taurine salt with a counter base attached from the beginning, or may be used by neutralizing the N-alkylmethyl taurine and the counter base during the production of the cosmetic. In the present invention, one or more of the above-mentioned components may be appropriately selected and used depending on the purpose. Specific examples of the N-alkylmethyltaurine salt of the present invention include sodium N-palmitoyl-N-methyltaurine, sodium N-stearoyl-N-methyltaurine, triethanolamine N-palmitoyl-N-methyltaurine, triethanolamine N-stearoyl-N-methyltaurine, potassium N-stearoyl-N-methyltaurine, and N-stearoyl-N-methyltaurine. Among these, sodium N-stearoyl-N-methyltaurine is particularly preferred from the viewpoint of stability over time. Examples of commercially available products include NIKKOL SMT (manufactured by Nikko Chemicals Co., Ltd.).
[0042] The content of component (F) used in the present invention is not particularly limited, but the lower limit is preferably 0.01% or more, more preferably 0.02% or more, and even more preferably 0.03% or more. The upper limit is preferably 1% or less, more preferably 0.5% or less, even more preferably 0.3% or less, and even more preferably 0.1% or less. The content of component (F) is preferably 0.01 to 1%, more preferably 0.01 to 0.5%, even more preferably 0.01 to 0.3%, even more preferably 0.01 to 0.1%, more preferably 0.02 to 0.1%, and particularly preferably 0.03 to 0.1%. This range is more preferable because it can further improve stability over time while favorably exhibiting the effects of the present invention, such as good compatibility with wet hair and non-stickiness.
[0043] From the viewpoint of aesthetic appearance and stability over time, the cosmetic of the present invention preferably has a transparent appearance. Here, in the present invention, "transparent" refers to a transmittance of 60% or more at a wavelength of 590 nm, preferably 70% or more, and more preferably 80% or more. The transmittance is measured using a spectrophotometer by filling a sample into a plastic cell with an optical path length of 10 mm and an optical path width of 10 mm. The material of the cell is not particularly limited, and data on the cell material is subtracted using a blank.
[0044] In addition to the essential components described above, the cosmetic of the present invention may contain other components commonly used in cosmetic preparations, as needed, in amounts and qualities that do not impair the effects of the present invention. For example, surfactants other than components (C) and (F), water-soluble polymers other than component (D), oils other than component (B), powders, antioxidants, fragrances, preservatives, pH adjusters, UV absorbers, moisturizers, cooling agents, cosmetic ingredients, etc.
[0045] Surfactants other than components (C) and (F) may include anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, and the like.
[0046] The anionic surfactant other than component (F) is not particularly limited as long as it is one that is commonly used in cosmetics, and specific examples include alkyl sulfates, polyoxyethylene alkyl sulfates, alkylamide sulfates, alkyl sulfonates, higher fatty acid salts, hydroxy fatty acid salts, alkyl phosphate ester salts, polyoxyethylene alkyl ether phosphate ester salts, acylamino acid salts, alkyl ether carboxylate salts, etc. These can be used alone or in combination of two or more types as needed.
[0047] Examples of cationic surfactants include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride, distearyldimethylammonium chloride dialkyldimethylammonium salts, poly(N,N'-dimethyl-3,5-methylenepiperidinium) chloride, alkylpyridinium salts such as cetylpyridinium chloride, alkyl quaternary ammonium salts, alkyldimethylbenzylammonium salts, alkylisoquinolinium salts, dialkylmorphonium salts, POE alkylamines, alkylamine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, and benzethonium chloride, and one or more of these may be used.
[0048] Examples of nonionic surfactants other than component (C) include nonionic surfactants having an HLB of less than 7, such as glycerin fatty acid esters and sorbitan fatty acid esters, and one or more of these can be used.
[0049] Examples of amphoteric surfactants include betaine surfactants such as 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine lauryl dimethylaminoacetic acid betaine, alkyl betaine, amido betaine, and sulfobetaine, and phospholipids, and one or more of these can be used.
[0050] Oils other than component (B) include hydrocarbons such as isododecane, isohexadecane, liquid paraffin (mineral oil), squalane, squalene, α-olefin oligomer, polybutene, liquid isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, polyisobutylene, and hydrogenated polyisobutene, rapeseed oil, avocado oil, almond oil, apricot kernel oil, perilla oil, orange oil, olive oil, kiwi seed oil, grape seed oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, and safflower oil. Animal and vegetable oils such as sage oil, soybean oil, tea seed oil, corn oil, rapeseed oil, evening primrose oil, camellia oil, persic oil, Job's tears oil, peanut oil, sunflower oil, sunflower seed oil, grape seed oil, meadowfoam oil, rosemary oil, jojoba oil, jojoba seed oil, macadamia nut oil, lavender oil, rosehip oil, and mink oil; glyceryl tri-2-ethylhexanoate (triethylhexanoin), isotridecyl isononanoate, isononyl isononanoate, cetyl 2-ethylhexanoate, isomyristate Propyl, Isopropyl Palmitate, Isopropyl Isostearate, 2-Ethylhexyl Palmitate, Octyldodecyl Myristate, Glyceryl Trioctanoate, Caprylic / Capric Triglyceride, Trimethylolpropane Triisostearate, Propylene Glycol Dicaprate, Neopentyl Glycol Dicaprate, Neopentyl Glycol Diethylhexanoate, Pentaerythrityl Tetraethylhexanoate, Hexa Esters such as dipentaerythrityl (hydroxystearic acid / stearic acid / rosin acid), dialkyl carbonate, tritridecyl trimellitate, bisethoxydiglycol cyclohexane-1,4-dicarboxylate, dimer dilinoleyl hydrogenated rosin condensate, C12-15 alkyl benzoate, cetyl palmitate, diglyceryl tetraisostearate, ethyl oleate, glyceryl triisostearate, ethyl linoleate, and oleyl oleate; fatty acids such as oleic acid and isostearic acid;Higher alcohols such as oleyl alcohol, 2-octyldodecanol, 2-decyltetradecanol, isostearyl alcohol, 2-hexyldecanol, stearyl alcohol, cetostearyl alcohol, behenyl alcohol, and jojoba alcohol; fluorine-based oils such as perfluoropolyether, perfluorodecane, and perfluorooctane; lanolin derivatives such as lanolin acetate, lanolin fatty acid isopropyl, and lanolin alcohol; 2-ethylhexyl paramethoxycinnamate, UV absorbers such as ethylhexyl salicylate, 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoic acid hexyl ester, methylenebisbenzotriazolyltetramethylbutylphenol, bisethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine (ethylhexyl triazone); cocoa butter, shea butter, castor oil, and hydrogenated castor oil , hydrogenated coconut oil, petrolatum, hydrogenated castor oil monostearate, hydrogenated castor oil monohydroxystearate, cholesteryl hydroxystearate, dipentaerythritol fatty acid ester, N-lauroyl-L-glutamic acid di(phytosteryl·2-octyldodecyl), N-lauroyl-L-glutamic acid di(octyldodecyl / cholesteryl / behenyl), N-lauroyl-L-glutamic acid di(octyldodecyl / phytosteryl / behenyl), macadamia nut oil fatty acid phytosteryl Examples of suitable oils include paste-like oils such as phytosteryl, isostearyl, cetyl, stearyl, and behenyl dimer dilinoleate; waxes such as paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, Fischer-Tropsch wax, beeswax, and candelilla wax; polyethylene glycol distearate, glyceryl tribehenate, cholesterol, phytosterol, stearyl-modified polysiloxane, hydrogenated oil, and palm oil. These oils may be used alone or in combination of two or more.
[0051] It is preferable that the oil contains an oil having an ester skeleton from the viewpoint of good compatibility with wet hair and non-stickiness.
[0052] The oil preferably contains at least liquid oil (an oil that is liquid at 25°C). The content of the oil (preferably an oil having an ester skeleton) in the cosmetic is preferably 20% or more, more preferably 25% or more, and even more preferably 30% or more, as a lower limit. The upper limit is preferably 70% or less, more preferably 60% or less, as a higher limit. Furthermore, the oil may consist solely of liquid oil. The liquid oil referred to here does not include component (B).
[0053] As the powder, any powder used in ordinary cosmetics can be used, regardless of its shape (spherical, needle-like, plate-like, etc.), particle size (aerosol, fine particles, pigment-grade, etc.), or particle structure (porous, non-porous, etc.).
[0054] Examples of preservatives include benzoic acid, sodium benzoate, salicylic acid, carbolic acid, sorbic acid, potassium sorbate, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizers, zinc bis(2-pyridylthio-1-oxide), isopropylmethylphenol, parahydroxybenzoic acid esters, and phenoxyethanol. Examples of pH adjusters include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, malic acid, potassium carbonate, sodium bicarbonate, ammonium bicarbonate, sodium hydroxide, potassium hydroxide, triethanolamine, monoethanolamine, etc., and examples of cooling agents include L-menthol, camphor, etc.
[0055] The cosmetic preparation of the present invention can be produced by a commonly known method, and the production equipment is not particularly limited as long as it is a dispersing equipment such as a paddle mixer, a dispersion mixer, etc. For example, the cosmetic preparation can be obtained by heating and mixing components (A) and (C) to (F), adding component (B) and any oil that have been previously heated and mixed thereto, mixing uniformly, and then cooling.
[0056] The cosmetic preparation of the present invention may be in any form, including, but not limited to, liquid, cream, semi-solid, mousse, etc. Among these, semi-solid is preferred from the viewpoints of stability over time and non-dripping. In the present invention, a semi-solid refers to a consistency of 200 mm or more at 15°C, with 250 mm or more being preferred from the viewpoints of stability over time and non-dripping. The upper limit is not particularly limited, but from the viewpoints of usability, etc., 500 mm or less is preferred, and 400 mm or less is more preferred. The consistency can be measured at a measurement temperature of 15°C using a consistency meter (manufactured by Nippon Oil Testing Machinery Co., Ltd.) and a No. 2 aluminum cone in accordance with JIS-K2220.
[0057] The cosmetic of the present invention may be in any one or more forms selected from hair cosmetics such as hair cosmetics, eyelash cosmetics, and eyebrow cosmetics; basic cosmetics such as emulsions, creams, lotions, serums, packs, all-in-one gels, sunscreens, and cleansers; makeup cosmetics such as makeup bases, BB creams, foundations, blushers, and lipsticks; makeup protection cosmetics; skin care cosmetics such as eye creams, balms, massage cosmetics, hand creams, and body creams; topical skin preparations; dispersions, ointments, solutions, aerosols, patches, poultices, liniments, etc. The cosmetic of the present invention may also be applied to topical skin preparations such as pharmaceuticals, quasi-drugs, skin care products, and skin protectants, and may be either cosmetics or topical skin preparations.
[0058] One embodiment of the cosmetic of the present invention contains 1 to 30 times the amount of silicone oil relative to a small amount of water and a polyhydric alcohol having a specific refractive index, and has a feel similar to that of an oil-based cosmetic while also having excellent affinity with wet hair (good blendability with wet hair). Therefore, from the viewpoint of being able to optimally exert the effects of the present invention, the cosmetic of the present invention is preferably used as a hair cosmetic for hair or scalp hair, and more preferably as a hair cosmetic (hair cosmetic) intended for scalp hair. The hair cosmetic composition can be applied to the hair, eyebrows, eyelashes, scalp, the base of eyelashes or eyebrows, for example, by coating it on the hair. The hair cosmetic composition is preferably applied as a hair cosmetic, eyebrow cosmetic, or eyelash cosmetic. Examples of hair cosmetics include hair styling products, shampoos, hair rinses, rinse-in shampoos, hair treatments, hair conditioners, and hair growth products. Examples of eyelash cosmetics include mascara, mascara overcoats, and mascara bases. Examples of eyebrow cosmetics include eyebrow creams and eyebrow serums, but are not limited to these product forms.
[0059] The cosmetic composition of the present invention can be used as either a rinse-off type or a leave-in type, but from the viewpoint of being able to suitably exhibit effects such as non-stickiness and long-lasting luster, a leave-in type cosmetic composition is preferred.
[0060] The hair cosmetic composition of the present invention can be used as an in-bath or leave-in hair cosmetic. Specifically, in-bath products include rinse-off hair cosmetics such as hair rinses, hair treatments, and hair packs, while leave-in hair cosmetics include hair treatments, hair essences, hair creams, hair foams, hair sprays, and hair oils. From the viewpoints of good compatibility with wet hair, non-stickiness, and long-lasting luster, the hair cosmetic composition of the present invention is preferably an leave-in hair cosmetic, and more preferably an leave-in head cosmetic. Leave-in hair cosmetics, particularly head cosmetics, can be used after removing moisture from the hair (scalp) with a towel and then drying with hot air from a hair dryer. They can also be used when the hair (scalp) is still damp due to insufficient drying with hot air from a hair dryer. Being able to use them on damp hair (scalp) is considered to be convenient in that no particular timing of application is required.
[0061] The present invention can also employ the following configuration. <1> The following components (A) to (E): (A) Polyhydric alcohol with a refractive index of 1.42 to 1.47 (B) Silicone oil (C) Nonionic surfactants with an HLB of 7 or more: 1% by mass or less (D) Amphiphilic polymers (E) Water 10% by mass or less wherein the mass ratio (B) / (A) of the component (B) to the component (A) is 1 to 30. <2> The cosmetic preparation according to <1>, wherein the content of the component (B) is 20 to 70 mass %. <3> The cosmetic preparation according to <1> or <2>, wherein the component (D) is at least one selected from the group consisting of acrylic acid / alkyl methacrylate copolymer, (acrylates / beheneth-25 methacrylate) copolymer, ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer, ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, sodium acrylate / sodium acryloyldimethyltaurate copolymer, PEG-240 / decyltetradeceth-20 / hexamethyldiisocyanate copolymer, and hydrophobized hydroxypropyl cellulose. <4> The cosmetic preparation according to any one of <1> to <3>, wherein the component (C) is a nonionic surfactant having a sterol skeleton. <5> The cosmetic preparation according to any one of <1> to <4> further contains an N-alkylmethyl taurine salt as a component (F). <6> The cosmetic preparation according to any one of <1> to <5>, wherein the transmittance at 590 nm is 70% or more. <7> The cosmetic preparation according to any one of <1> to <6>, wherein the component (B) is dimethylpolysiloxane. <8> The cosmetic preparation according to <7>, wherein the component (B) contains at least a dimethylpolysiloxane having a viscosity at 25°C of 10,000 to 1,000,000 mPa·s. <9> The cosmetic preparation according to any one of <1> to <8> further contains a phosphate ester-based nonionic surfactant. <10> The cosmetic preparation according to any one of <1> to <9>, which is a leave-in cosmetic preparation. <11> The cosmetic preparation according to any one of <1> to <10>, which is a hair cosmetic preparation. <12> The cosmetic composition according to <11> is applied to wet hair. <13> The cosmetic according to <11> or <12>, which is a hair cosmetic. [Example]
[0062] The present invention will be described in detail below with reference to examples, which should not be construed as limiting the scope of the present invention.
[0063] <Examples 1 to 18 and Comparative Examples 1 to 7: Hair Cosmetics (Out-of-Bath Hair Treatments)> Hair cosmetics having the compositions shown in Tables 1 and 2 were prepared by the manufacturing method described below, and evaluated for "transparency," "good compatibility with wet hair," "non-dripping," "non-stickiness," "sustained gloss," and "stability over time" using the evaluation methods and criteria described below. The results are also shown in Tables 1 and 2. In the present invention, the content of each component in Examples 19 to 21 in or outside the tables represents the content of the pure component.
[0064] [Table 1]
[0065] [Table 2] Note 1: Silicon KF-9012 (50% high polymerization methylpolysiloxane solution, manufactured by Shin-Etsu Chemical Co., Ltd.) Note 2: KF-96-100CS (Shin-Etsu Chemical Co., Ltd.) Note 3: Pearleem 18 (NOF Corporation) Note 4: NIKKOL BPS-30 (manufactured by Nippon Surfactant Industries Co., Ltd.) *5: PEMULEN TR-1 (manufactured by Lubrizol Advanced Materials) Note 6: NOVETHIX L-10 POLYMER (manufactured by LUBRIZOL ADVANCED MATERIALS)
[0066] (Manufacturing method) (1): Mix and dissolve Nos. 1-3, 7-8, and 12-13 uniformly at 80°C. (2): Mix Nos. 4 to 6 and 14 uniformly at 70°C. (3): Add Nos. 9 to 11 to (1) and mix uniformly using a disper mixer. (4): Add (2) to (3) and mix evenly using a disperser mixer. (5): (4) was cooled to room temperature while being mixed, and then filled into a container to obtain a hair cosmetic composition.
[0067] [Evaluation method 1: Ability to blend into wet hair, non-dripping, non-stickiness, and long-lasting shine] Regarding the ease of application to wet hair, non-dripping, non-stickiness, and lasting shine, 20 members of a panel of cosmetic evaluation specialists were asked to apply each sample to towel-dried wet hair after washing, and evaluate and assign scores according to the following evaluation criteria. The average score was calculated from the total scores of all panelists for each sample, and the results were judged according to the four-level evaluation criteria below. The compatibility with wet hair was evaluated based on how well the product spread to the ends of wet hair when applied. The non-dripping property was evaluated by checking whether each sample dripped from the hand or between the fingers when picked up. Regarding non-stickiness, each sample was applied to hair, which was then dried with a hair dryer, and evaluated based on whether the hair was free of stickiness or clumpiness. Regarding the duration of shine, the hair was dried with a hair dryer after application and evaluated to see whether the shine persisted even 10 hours after application.
[0068] [5-point rating scale] [Score]:[Evaluation result] 5 points: very good 4 points: Good 3 points: Neither 2 points: slightly poor 1 point: Defective [4-level evaluation criteria] [Judgment]: [Average score] A (excellent): 4.5 points or more B (Good): 3.25 points or more to less than 4.5 points C (slightly unacceptable): 2.0 points or more to less than 3.25 points D (Fail): Less than 2.0 points
[0069] [Evaluation method 2: Stability over time] Each sample of Examples 1 to 18 and Comparative Examples 1 to 7 was left to stand in a thermostatic chamber at 50°C or 15°C for one month, and the state of each sample was evaluated on a 5-point scale according to the following evaluation criteria, and each sample was given a score. Next, the average score for each temperature was judged according to the following criteria.
[0070] [5-point rating scale] [Score]:[Evaluation result] 5 points: No change at all 4 points: Almost no change 3 points: There is a change in appearance, but the oily components have not separated 2 points: Oil-based ingredients are oozing out onto the surface 1 point: Oily and watery components are separated [4-level evaluation criteria] [Judgment]: [Average score] A (excellent): 4.5 points or more B (Good): 3.5 points or more to less than 4.5 points C (slightly unacceptable): 1.5 points to less than 3.5 points D (Fail): Less than 1.5 points
[0071] [Evaluation method 3: Transparency] Each sample of Examples 1 to 18 and Comparative Examples 1 to 7 was allowed to stand at 30°C for 30 minutes, then filled into a plastic cell with an optical path length of 10 mm and an optical path width of 10 mm, and the transmittance (%) was measured using a spectrophotometer with n = 5. The average value of each measurement value was calculated and judged according to the following three-level judgment criteria.
[0072] [Three-level evaluation criteria] [Judgment]: [Average value] A (Excellent): Transmittance is 80% or more B (Good): Transmittance is 70% or more but less than 80% C (Acceptable): Transmittance is less than 70%
[0073] Examples 1 to 18 all had a consistency within the range of 250 to 400 mm, and were excellent in terms of blending well with wet hair, non-dripping, non-stickiness, sustained gloss, and stability over time. In particular, Examples 1 to 4, 6, and 8 to 18 were excellent in transparency, and Examples 1, 3, 6, 8 to 16, and 18 were even more excellent in transparency. In contrast, in Comparative Example 1, in which the mass ratio (B) / (A) of component (B) to component (A) exceeded 30, the blendability to wet hair and stability over time were unsatisfactory. Comparative Example 2, in which the mass ratio (B) / (A) of component (B) to component (A) was less than 1, and Comparative Example 3, in which hydrogenated polyisobutene was used instead of component (B), were not satisfactory in terms of non-stickiness, sustained gloss, and stability over time. Comparative Example 4, which did not contain component (D), was not satisfactory in terms of non-dripping and stability over time. Comparative Example 5, in which a carboxyvinyl polymer was used instead of component (D), and Comparative Example 7, in which the content of component (E) exceeded 10%, did not have satisfactory stability over time and were unsuitable for continuous use as cosmetics. Comparative Example 6, in which polyquaternium-11 was used instead of component (D), was not satisfactory in terms of good compatibility with wet hair, non-stickiness, and stability over time.
[0074] Example 19: Leave-in hair treatment (Component) (mass%) 1. Glycerin 5 2. Propylene Glycol 10 3. Dipropylene Glycol 5 4.Purified water 5 5. Polyoxyethylene (10) cholesteryl ether 0.6 6. Triceteareth-4 phosphate 0.2 7. Sodium Stearoyl Methyl Taurate 0.01 8. (Acrylates / Alkyl acrylates (C10-30) crosspolymer Note 5 0.1 9. Triethanolamine 0.1 10. Dimethylpolysiloxane Note 2 20 11. Diphenylsiloxyphenyl Trimethicone (Viscosity at 25°C is 15 mPa·s) 5 12. Diphenyl Dimethicone (Viscosity at 25°C: 400 mPa·s) 5 13. Triethylhexanoin 10 14. Isopropyl myristate remaining 15.Fragrance 0.5
[0075] (Manufacturing method) (1) Dissolve Nos. 1 to 7 uniformly at 80°C. (2) Dissolve Nos. 10 to 14 uniformly at 70°C. (3) Add No. 8 to (1) and mix. (4) Add No. 9 to (3) and neutralize. (5) Add (2) to (4) and mix. (6) Add No. 15 to (5) and mix.
[0076] The leave-in hair treatment of Example 19 was excellent in compatibility with wet hair after towel drying, and was non-sticky and provided excellent gloss retention after drying. Furthermore, it was also non-dripping and stable over time. Its transparency was rated A, and its consistency was within the range of 250 to 400 mm.
[0077] Example 20: Out-of-bath hair treatment (Component) (mass%) 1. Glycerin 5 2. Propylene Glycol 10 3. Dipropylene Glycol 5 4.Purified water 5 5. EDTA-2Na 0.01 5. Polyoxyethylene (30) phytosteryl ether 0.5 6. Triceteareth-4 phosphate 0.1 7. Di(C12-15)paleth-8 phosphate 0.03 8. (Acrylates / Alkyl acrylates (C10-30) crosspolymer Note 5 0.2 9. Sodium hydroxide 0.07 10. Dimethylpolysiloxane Note 2 30 11. Dimethylpolysiloxane Note 1 4 12. Dimethiconol 5 13. Amodimethicone 1 14. Octyldodecanol 10 15. Cetyl ethylhexanoate remaining amount 16.Fragrance 0.5
[0078] (Manufacturing method) (1) Dissolve Nos. 1 to 7 uniformly at 80°C. (2) Dissolve Nos. 10 to 15 uniformly at 70°C. (3) Add No. 8 to (1) and mix. (4) Add No. 9 to (3) and neutralize. (5) Add (2) to (4) and mix. (6) Add No. 16 to (5) and mix.
[0079] The leave-in hair treatment of Example 20 was excellent in compatibility with wet hair after towel drying, and was non-sticky and provided excellent gloss retention after drying. Furthermore, it was also non-dripping and stable over time. Its transparency was rated A, and its consistency was within the range of 250 to 400 mm.
[0080] Example 21: Skin Cream (Component) (mass%) 1. Glycerin 2 2. Propylene Glycol 10 3. Dipropylene Glycol 8 4.Purified water 8 5. EDTA-2Na 0.01 5. Polyoxyethylene (10) cholesteryl ether 0.1 6. Triceteareth-4 phosphate 0.1 7. Di(C12-15)paleth-8 phosphate 0.01 8. (Acrylates / Alkyl acrylates (C10-30) crosspolymer Note 5 0.1 9. Sodium hydroxide 0.03 10. Dimethylpolysiloxane Note 2 12 11. Dimethylpolysiloxane Note 1 3 12. Dimethylpolysiloxane Note 7 10 13. Squalane 5 14. Mineral Oil 5 15. Isostearic acid 5 16. Cetyl ethylhexanoate remaining amount 17.Fragrance 0.2 Note 7: KF-96A-6CS (Shin-Etsu Chemical Co., Ltd.)
[0081] (Manufacturing method) (1) Dissolve Nos. 1 to 7 uniformly at 80°C. (2) Dissolve Nos. 10 to 16 uniformly at 70°C. (3) Add No. 8 to (1) and mix. (4) Add No. 9 to (3) and neutralize. (5) Add (2) to (4) and mix. (6) Add No. 17 to (5) and mix.
[0082] The skin cream of Example 21 was excellent in non-stickiness and long-lasting luster. Furthermore, it was non-dripping and had good stability over time. The transparency was rated A, and the consistency was within the range of 200 to 500 mm.
Claims
1. The following components (A) to (E): (A) Polyhydric alcohol with a refractive index of 1.42 to 1.47 (B) Silicone oil (C) Nonionic surfactants having an HLB of 7 or more: 1% by mass or less (D) Amphiphilic polymer (E) Water 10% by mass or less wherein the mass ratio (B) / (A) of the component (B) to the component (A) is 1 to 30.
2. 2. The cosmetic according to claim 1, wherein the content of the component (B) is 20 to 70% by mass.
3. 3. The cosmetic preparation according to claim 1, wherein the component (D) is at least one selected from the group consisting of acrylic acid / alkyl methacrylate copolymer, acrylates / beheneth-25 methacrylate copolymer, ammonium acryloyldimethyltaurate / vinylpyrrolidone copolymer, ammonium acryloyldimethyltaurate / beheneth-25 methacrylate copolymer, hydroxyethyl acrylate / sodium acryloyldimethyltaurate copolymer, sodium acrylate / sodium acryloyldimethyltaurate copolymer, PEG-240 / decyltetradeceth-20 / hexamethyldiisocyanate copolymer, and hydrophobized hydroxypropyl cellulose.
4. The cosmetic preparation according to claim 1 or 2, wherein the component (C) is a nonionic surfactant having a sterol skeleton.
5. The cosmetic preparation according to claim 1 or 2, further comprising component (F) N-alkylmethyl taurine salt.
6. 3. The cosmetic preparation according to claim 1, which has a transmittance of 70% or more at 590 nm.
7. The cosmetic according to claim 1 or 2, which is a leave-on cosmetic.
8. The cosmetic according to claim 1 or 2, which is a hair cosmetic.
9. The cosmetic composition according to claim 8, which is to be applied to wet hair.
Citation Information
Patent Citations
High-oil-content water-based cosmetic
JP2015193546A
Hair cosmetic
JP2019182807A