Emulsified cosmetic
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-08-11
Smart Images
Figure CN122555545A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an emulsifying composition. Background Technology
[0002] In recent years, due to the effects of global warming, hot weather has become increasingly frequent, and the discomfort caused by excessive sweating when going out in the heat has become a serious problem for many people. In response, cosmetics disclosed in Patent Documents 1 and 2 incorporate porous silica to alleviate this discomfort. The porous silica's function is to enable sweat to evaporate quickly on the skin.
[0003] Existing technical documents
[0004] Patent documents
[0005] Patent Document 1: Japanese Patent Application Publication No. 2022-125619
[0006] Patent Document 2: Japanese Patent Application Publication No. 2022-151056 Summary of the Invention
[0007] The emulsified cosmetic product according to one aspect of the present invention contains the following ingredients (A) to (D).
[0008] (A) Silica particles: 0.5% by mass to 10% by mass;
[0009] (B) Modified organosilicon: 0.3% by mass to 4% by mass;
[0010] (C) Non-volatile oils that are liquid at 25°C: 20% by mass to 40% by mass;
[0011] (D) Water: 5% to 78% by mass. Attached Figure Description
[0012] Figure 1 This is a diagram schematically illustrating the composition of an emulsified cosmetic product according to one embodiment of the present invention.
[0013] Figure 2 This is a diagram schematically showing the state of the above-mentioned emulsified cosmetic when applied to the skin. Detailed Implementation
[0014] In the cosmetics disclosed in Patent Documents 1 and 2, it is conceivable to increase the content of porous silica in order to further enhance the effect of suppressing discomfort caused by sweating. However, for cosmetics, the amount of porous silica that can adhere to the skin is limited, and when too much porous silica adheres to the skin, problems such as poor skin affinity or unnatural whitening may occur.
[0015] This invention relates to improving the effect of emulsified cosmetics in suppressing discomfort caused by sweating.
[0016] The embodiments of the present invention will be described below. The present invention is not limited to the embodiments shown below, and various modifications can be made without departing from the spirit of the invention.
[0017] [The overall composition of emulsified cosmetics]
[0018] • General Structure
[0019] The emulsified cosmetic X described in this embodiment is a water-in-oil (W / O) emulsion. Typically, the emulsified cosmetic X is configured as a rinse-off type, applied to bare skin without wiping. The rinse-off type emulsified cosmetic X is applied to the entire body, including the upper body (e.g., shoulders), and then rinsed off with a spray or similar means. This allows for complete coverage of both the upper and lower body, and even after wiping with a towel, the ingredients of the emulsified cosmetic X remain on the bare skin. Alternatively, the emulsified cosmetic X can also be a leave-on type, applied to bare skin without direct rinsing. In the following description, for the rinse-off type emulsified cosmetic X, "immediately after application" refers to the time point after wiping the skin with a towel or similar means after rinsing off the emulsified cosmetic X.
[0020] Emulsified cosmetic X contains ingredients (A), (B), (C), and (D). Ingredient (A) consists of silica particles. Ingredient (B) consists of modified organosilicon. Ingredient (C) consists of a non-volatile oil that is liquid at 25°C. In this embodiment, "liquid" means liquid at 25°C, for example, meaning a viscosity of 20,000 mPa·s or less at 25°C. Ingredient (D) consists of water. Figure 1 This schematically illustrates the state of each component of emulsified cosmetic X after shaking and stirring before use. The oil phase, which is the external phase, is composed of component (C), and the aqueous phase, which is the internal phase, is composed of component (D). The silica particles constituting component (A) are dispersed in the oil phase in a state where they are coated with modified organosilicon of component (B).
[0021] The main components that cause discomfort when sweating include water, salt, lactic acid (found in sweat), and sebum secreted by the skin.
[0022] In response, in emulsified cosmetic X, silica particles adsorb the salt and lactic acid contained in sweat, thus purifying the sweat and reducing its viscosity while allowing the water content of sweat to evaporate quickly. Additionally, the silica particles in emulsified cosmetic X also adsorb sebum, thereby inhibiting the effects of sebum. Furthermore, by incorporating more non-volatile oils of component (C) than in typical formulations, more silica particles can remain on the skin. Thus, emulsified cosmetic X, through the action of silica particles, can suppress discomfort caused by sweating on the skin after application.
[0023] Additionally, when applying emulsified cosmetic X to the skin, such as Figure 2 As shown, silica particles are covered on the skin by a hydrophobic, water-repellent film. The water-repellent film is composed of at least a portion of modified silicone (component (B)) and non-volatile oil (component (C)). Furthermore, as described above, the emulsified cosmetic X allows more silica particles to remain on the skin, thus creating an uneven surface. Additionally, for rinse-off emulsified cosmetic X, the water-repellent effect produced by the water-repellent film is more effectively achieved because hydrophilic components such as surfactants, polyols, and polar oils are rinsed away.
[0024] For emulsified cosmetics X, such as Figure 2 As shown, the synergistic effect of the water-repellent coating and the lotus effect created by the uneven shape of the silica particles effectively reduces the wettability of sweat. Therefore, emulsified cosmetic X can suppress discomfort caused by the spread of sweat on the skin. Furthermore, sweat is less likely to remain on the skin after applying emulsified cosmetic X, thus reducing the amount of sweat that needs to be purified using silica. Therefore, in emulsified cosmetic X, the effect of silica particles can be sustained for a longer period without increasing the amount of silica particles.
[0025] ·Ingredients (A)
[0026] As described above, the silica particles constituting component (A) have the function of adsorbing unpleasant components such as salt and lactic acid contained in sweat, and sebum secreted on the skin surface. To more effectively achieve the adsorption of these unpleasant components, it is advantageous to have a higher content of component (A) in the emulsified cosmetic X; however, to ensure skin affinity and prevent the skin from appearing unnaturally white, it is advantageous to have a lower content of component (A). From these perspectives, the content of component (A) in the emulsified cosmetic X is 0.5% by mass or more and 10% by mass or less, preferably 1% by mass or more and 8% by mass or less, and more preferably 2% by mass or more and 5% by mass or less.
[0027] The silica particles used as constituent component (A) can be, for example, porous silica, non-porous silica, hollow silica, etc., and one or more of these can be used. For the emulsified cosmetic X, in order to absorb more salts, lactic acid, sebum, etc., component (A) preferably includes component (A1) composed of porous silica particles with an oil absorption capacity of 250 mL / 100 g or more. In this case, for the emulsified cosmetic X, in order to obtain a smooth, non-gritty skin feel, component (A) further preferably also includes component (A2) composed of silica particles with an oil absorption capacity of less than 250 mL / 100 g. The oil absorption capacity can be measured according to JIS K 5101-13-2.
[0028] For emulsified cosmetic X, in order to maintain a smooth, non-irritating skin feel and to fully absorb unpleasant ingredients, it is preferable to have a well-balanced formulation of ingredients (A1) and (A2). Specifically, in emulsified cosmetic X, the mass ratio (A2) / (A1) of ingredient (A2) to ingredient (A1) is preferably 0.3 to 35 or less, more preferably 0.5 to 35 or less, even more preferably 0.5 to 10 or less, even more preferably 0.5 to 5 or less, and even more preferably 1 to 5 or less.
[0029] Regarding the particle size of the silica particles in component (A), a smaller particle size is advantageous for achieving a smooth feel on skin coated with emulsified cosmetic X, while a not too small particle size is advantageous for preventing a rough or astringent feeling upon skin contact. From these perspectives, the average particle size of the silica particles in component (A) is preferably 1 μm or more and 15 μm or less, more preferably 2 μm or more and 12 μm or less, even more preferably 3 μm or more and 12 μm or less, and even more preferably 3 μm or more and 5 μm or less. Similarly, from the same perspective, the average particle size of the silica particles in component (A1) is preferably 1 μm or more and 15 μm or less, more preferably 2 μm or more and 12 μm or less, even more preferably 3 μm or more and 12 μm or less, and even more preferably 3 μm or more and 5 μm or less. Furthermore, considering the same viewpoint, the average particle size of the silica particles constituting component (A2) is preferably 1 μm or more and 15 μm or less, more preferably 2 μm or more and 12 μm or less, even more preferably 3 μm or more and 12 μm or less, and even more preferably 3 μm or more and 5 μm or less. In this embodiment, the particle size is measured using a Coulter multisizer (manufactured by Beckman Coulter Co., Ltd.) according to the method of JIS Z 8832:2010, and the average particle size is the median particle size (D50) obtained from the volume reference.
[0030] • Ingredient (B)
[0031] The modified organosilicon in component (B) is a surfactant with relatively high hydrophobicity. In emulsified cosmetic X, the modified organosilicon functions as a water-in-oil emulsifier. Additionally, as... Figure 1 As shown, it is believed that by coating each silica particle, the surface of the silica particles can be endowed with hydrophobicity. Therefore, in the emulsified cosmetic X, the silica particles constituting component (A) can be dispersed in the oil phase. The content of component (B) in the emulsified cosmetic X is 0.3% by mass or more and 4% by mass or less, preferably 0.5% by mass or more and 3% by mass or less, more preferably 1% by mass or more and 2% by mass or less.
[0032] • Ingredient (C)
[0033] The non-volatile oil in component (C) preferably contains one or more of the known non-volatile oils. In this embodiment, "non-volatile" means having the property that, after spreading 1g of the oil in a 48mm diameter glass petri dish and placing it at 25°C and normal pressure for 24 hours, the weight loss rate is 3% or less. The non-volatile oil in component (C) has the effect of retaining silica particles on the skin by allowing them to adhere to the skin in a dispersed state. In the emulsified cosmetic X, by incorporating more component (C) than in a general formulation, more silica particles can remain on the skin. On the other hand, in the emulsified cosmetic X, it is advantageous to have a relatively low content of component (C) to avoid an oily, sticky feeling on the skin. From these viewpoints, the content of component (C) in the emulsified cosmetic X is preferably 20% by mass or more and 40% by mass or less, more preferably 25% by mass or more and 35% by mass or less, and even more preferably 28% by mass or more and 32% by mass or less.
[0034] When the emulsified cosmetic X is formulated as a rinse-off type, a portion of ingredient (C) will be rinsed away. Therefore, compared to the case where it is formulated as a no-rinse type, it is preferable to formulate a larger amount of ingredient (C). Thus, the content of ingredient (C) in the rinse-off type emulsified cosmetic X is preferably 30% by mass or more and 40% by mass or less. The content of ingredient (C) in the no-rinse type emulsified cosmetic X is preferably 20% by mass or more and 30% by mass or less.
[0035] In the emulsified cosmetic X, ingredient (C) is composed of at least one of ingredient (C1) and ingredient (C2), wherein ingredient (C1) is composed of a non-polar oil and ingredient (C2) is composed of a polar oil. The non-polar oil constituting ingredient (C1) is hydrophobic; therefore, as... Figure 2The water-repellent coating shown functions partly. On the other hand, the polar oil of component (C2) is hydrophilic, therefore, when remaining on the skin, it hinders the respiration of the skin. Figure 2 The tendency of the water-repellent coating to produce a water-repellent effect.
[0036] Therefore, for emulsified cosmetic X, in order to form a water-repellent coating that achieves a high water-repellent effect, component (C) preferably includes component (C1). Furthermore, in emulsified cosmetic X, the mass ratio of component (C1) to component (C), i.e., the mass ratio (C1) / (C), is more preferably 0.33 or more and 1 or less, and even more preferably 0.5 or more and 1 or less. Additionally, while component (C) preferably includes component (C1) in emulsified cosmetic X, component (C) may also consist solely of component (C2). In this case, the water-repellent coating is essentially formed solely from the modified organosilicon constituting component (B).
[0037] In emulsified cosmetic X, to ensure that a specified amount of silica particles remain on the skin, it is preferable to have a well-balanced formulation of ingredients (A) and (C). Specifically, in emulsified cosmetic X, the mass ratio (C) / (A) of ingredient (C) to ingredient (A) is preferably 2 to 50, more preferably 3 to 20, and even more preferably 6 to 12. Furthermore, in emulsified cosmetic X, to form a good water-repellent film, it is preferable to have a well-balanced formulation of ingredients (A) and (C1). Specifically, in emulsified cosmetic X, the mass ratio (C1) / (A) of ingredient (C1) to ingredient (A) is preferably 2 to 50, more preferably 3 to 20, and even more preferably 6 to 12.
[0038] • Ingredient (D)
[0039] The component (D) of the emulsified cosmetic X is composed of water. In the emulsified cosmetic X, component (D) can be, for example, purified water, deionized water, distilled water, etc. In the emulsified cosmetic X, component (D) can constitute the remaining portion besides other components. For a more refreshing feel upon application, a higher content of component (D) in the emulsified cosmetic X is advantageous, while for emulsion stability, a lower content of component (D) is advantageous. From these perspectives, the content of component (D) in the emulsified cosmetic X is preferably 5% by mass or more and 78% by mass or less, more preferably 15% by mass or more and 42% by mass or less, and even more preferably 20% by mass or more and 35% by mass or less.
[0040] [Detailed composition of emulsified cosmetic X]
[0041] ·Ingredients (A)
[0042] Porous silica as component (A) can be, for example, SUNSPHERE (registered trademark) H-31 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 150mL / 100g), SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g), H-33 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 400mL / 100g), SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g), SUNSPHERE (registered trademark) H-51 (AGC... (List of products follows, including:) Si-Tech Co., Ltd. (average particle size: 5μm, oil absorption: 150mL / 100g); SUNSPHERE (registered trademark) H-52 (AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 300mL / 100g); SUNSPHERE (registered trademark) H-121 (AGC Si-Tech Co., Ltd., average particle size: 12μm, oil absorption: 150mL / 100g); SUNSPHERE (registered trademark) H-122 (AGC Si-Tech Co., Ltd., average particle size: 12μm, oil absorption: 300mL / 100g); SILICA MICROBEAD P-500 (Nippon Kaisha Chemical Co., Ltd., average particle size: approx. 2μm, oil absorption: approx. 60mL / 100g); SILICA MICROBEAD L-1500 (manufactured by Nichihoku Chemical Co., Ltd., average particle size: approximately 11 μm, oil absorption: approximately 150 mL / 100 g), SILICA MICROBEAD P-4000 (manufactured by Nichihoku Chemical Co., Ltd., average particle size: approximately 11 μm, oil absorption: approximately 150 mL / 100 g), etc. As a component (A), non-porous silica can be used, for example, SUNSPHERE (registered trademark) NP-30 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 4 μm, oil absorption: 30 mL / 100 g), etc. Hollow silica, which is a component (A), can be, for example, BA4 (manufactured by Nichibukai Chemical Co., Ltd., average particle size: about 4 μm, oil absorption: 50 mL / 100 g) or GodBall B-6C (manufactured by Suzuki Oils & Fats Co., Ltd., average particle size: about 2.0 to 5.0 μm, oil absorption: about 140 mL / 100 g).
[0043] • Ingredient (B)
[0044] The modified organosilicon used as component (B) may be selected from one or more of polyether-modified organosilicon, oxazoline-modified organosilicon, polyglycerol-modified organosilicon, polyether-alkyl co-modified organosilicon, and polyglycerol-alkyl co-modified organosilicon, among which at least one of polyether-modified organosilicon and oxazoline-modified organosilicon is preferred. Polyether-modified organosilicon is a polymer having a structure in which the side chains of silicone oil and / or the terminal hydrocarbon groups are replaced by polyether groups. Oxazoline-modified organosilicon is a polymer having hydrophilic segments with N-acylalkylimide as repeating units and organopolysiloxane segments as structural units. As for the polyether-modified organosilicon used as component (B), it is preferable that the main organosilicon chain is a linear polyether-modified organosilicon.
[0045] Regarding the polyether group suitable as component (B) for polyether-modified organosilicon, examples include polyethyleneoxy, polypropyleneoxy, ethyleneoxy (EO), and polyalkyleneoxy (PO) obtained by block or random addition of ethyleneoxy and propyleneoxy groups. As polyether-modified organosilicon, compounds with polyether groups grafted onto the organosilicon backbone, compounds formed by block bonding of organosilicon and polyether groups, etc., can be used; compounds with polyether groups grafted onto the organosilicon backbone are preferred.
[0046] Regarding the polyether-modified organosilicon suitable as component (B), it is more preferably selected from at least one or more of PEG-32 methyl ether polydimethylsiloxane, PEG-11 methyl ether polydimethylsiloxane, PEG / PPG-20 / 22 butyl ether polydimethylsiloxane, PEG-9 polydimethylsiloxane, PEG-3 polydimethylsiloxane, PEG-9 methyl ether polydimethylsiloxane, PEG-10 polydimethylsiloxane, PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, PEG / PPG-30 / 10 polydimethylsiloxane, PEG-12 polydimethylsiloxane, and diisobutyl PEG / PPG-10 / 7 / polydimethylsiloxane, among which, it is more preferably selected from at least one or more of PEG-3 polydimethylsiloxane and PEG-10 polydimethylsiloxane.
[0047] Examples of commercially available PEG-32 methyl ether polydimethylsiloxane include KF-6004 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-11 methyl ether polydimethylsiloxane include KF-6011 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG / PPG-20 / 22 butyl ether polydimethylsiloxane include KF-6012 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-9 polydimethylsiloxane include KF-6013 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-3 polydimethylsiloxane include KF-6015 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-9 methyl ether polydimethylsiloxane include KF-6016 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-10 polydimethylsiloxane include KF-6017 (manufactured by Shin-Etsu Chemical Co., Ltd.) and KF-6043 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available PEG-9 polydimethylsiloxane include KF-6028 (manufactured by Shin-Etsu Chemical Co., Ltd.). Examples of commercially available lauryl PEG-9 polydimethylsiloxane include KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.).
[0048] Regarding polyether-alkyl co-modified silicones suitable as component (B), examples include cetyl PEG / PPG-10 / 1 polydimethylsiloxane. Commercially available examples of cetyl PEG / PPG-10 / 1 polydimethylsiloxane include KF-6048 (manufactured by Shin-Etsu Chemical Co., Ltd.) and ABIL EM-90 (manufactured by Evonik Japan Co., Ltd.). As for polyglycerol-alkyl co-modified silicones, examples include bis(glycerol / lauryl)glycerol-lauryl polydimethylsiloxane. Commercially available examples of bis(glycerol / lauryl)glycerol-lauryl polydimethylsiloxane include ABIL EM-120 (manufactured by Evonik Japan Co., Ltd.).
[0049] In the oxazoline-modified organosilicon used as component (B), from the viewpoint of improving user experience, the mass ratio of the organopolysiloxane segment to the hydrophilic segment with N-acylalkylimide as the repeating unit (organopolysiloxane segment a / hydrophilic segment b with N-acylalkylimide as the repeating unit) is, for example, a / b = 45 / 55 or more, preferably 65 / 35 or more, more preferably 85 / 15 or more, and, for example, 99 / 1 or less, preferably 98 / 2 or less. In this embodiment, the above-mentioned mass ratio is obtained by dissolving the organopolysiloxane of the present invention in deuterated chloroform at 5% by mass, and determining the above-mentioned mass ratio based on the integral ratio of the alkyl or phenyl groups in the organopolysiloxane segment to the methylene groups in the poly(N-acylalkylimide) segment by nuclear magnetic resonance (1H-NMR) analysis.
[0050] In oxazoline-modified organosilicones, from the perspective of improving user experience, the weight-average molecular weight of the organopolysiloxane segments is, for example, 1 × 10⁻⁶. 4 The preferred value is 2×10. 4 The above is further preferably 3.5×10 4 The above, and also, for example, 3×10 5 The following is preferred: 2×10 5 The following is a further preferred value of 1.5 × 10⁻⁶. 5 Below. Furthermore, the organopolysiloxane constituting the main chain has a common backbone with the modified organopolysiloxane used as the raw material compound; therefore, the weight-average molecular weight of the organopolysiloxane constituting the main chain is approximately the same as the average molecular weight of the modified organopolysiloxane. Here, the weight-average molecular weight of the modified organopolysiloxane is the weight-average molecular weight converted from polystyrene, measured by gel permeation chromatography (GPC) under the following conditions.
[0051] • Chromatographic column: Super HZ4000 + Super HZ2000 (manufactured by Tosoh Corporation)
[0052] • Eluent: 1mM triethylamine / THF
[0053] • Flow rate: 0.35 mL / min
[0054] Column temperature: 40℃
[0055] • Detector: UV detector
[0056] Sample: 50 μL
[0057] Furthermore, in oxazoline-modified organosilicon, from the viewpoint of improving user experience, the number-average molecular weight of the poly(N-acylalkylimide) segments is, for example, 5 × 10⁻⁶. 2 The preferred value is 7×10. 2The above is further optimized to 8×10 2 The above, and also, for example, 4×10 3 The preferred value is 3.5 × 10⁻⁶. 3 The following is a further preferred option: 3×10 3 The number-average molecular weight of the poly(N-acylalkylimide) segments can be determined by calculation based on the molecular weight and degree of polymerization of the N-acylalkylimide units, or by the GPC measurement method described above. In this embodiment, it refers to the number-average molecular weight measured by the GPC measurement method.
[0058] Specific examples of oxazoline-modified organosilicon polymers include compounds represented by the following general formula (1).
[0059]
[0060] In the above general formula (1): n represents a number from 1 to 5; R 9 The alkyl group represents alkyl groups with 1 to 5 hydrogen or carbon atoms; m represents the degree of polymerization of the monomer and is expressed as a number from 1 to 1000; r is expressed as an average of 10 to 2000; p is expressed as an average of 0 to 20; q is expressed as an average of 1 to 20; X － The term "equilibrium ion" refers to the quaternary ammonium ion, and specifically to ethyl sulfate ion, methyl sulfate ion, chloride ion, iodide ion, sulfate ion, p-toluenesulfonate ion, or perchlorate ion. A polymerization initiator residue is bonded to the N-terminus of the repeating unit of the N-acylalkylimide. Diethylsulfuric acid, dimethylsulfuric acid, hydrochloric acid, hydrogen iodide, sulfuric acid, p-toluenesulfonic acid, perchloric acid, etc., can be used as polymerization initiators, with their residues bonded to the N-terminus after polymerization. N-propionyl polyethyleneimine-methylpolysiloxane copolymer (POLYSILICONE-9) is preferred as the oxazoline-modified organosilicon polymer. For example, the compound described in Japanese Patent Application Publication No. 2009-256367 can be used as POLYSILICONE-9.
[0061] Polyglycerol-modified organosilicon is an organosilicon with intramolecular polyglycerol chains. In the polyglycerol-modified organosilicon used as component (B), the position of the polyglycerol chain is arbitrary, and the introduced form can be any form such as single-terminal, double-terminal, or side-chain type. Preferably, it is an organosilicon with polyglycerol chains on the side chains or at the ends of the organosilicon chains; more preferably, it is an organosilicon with monovalent polyglycerol groups on the side chains or at the ends of the organosilicon chains. Furthermore, as the polyglycerol-modified organosilicon used as component (B), a polyglycerol-modified organosilicon surfactant with branched organosilicon chains is also preferred. Commercially available examples of polyglycerol-modified organosilicon surfactants with branched organosilicon chains include, for example, KF-6106 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and KF-6104 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0062] Furthermore, as component (B), cross-linked modified organosilicones, such as cross-linked polyglycerol-modified organosilicones, are preferred. Cross-linked polyglycerol-modified organosilicones are three-dimensional cross-linked products formed by cross-linking organopolysiloxane chains with polyglycerol. Specific examples include (polydimethylsiloxane / polyglycerol-3) cross-linked polymers and alkyl co-modified (lauryl polydimethylsiloxane / polyglycerol-3) cross-linked polymers. Commercially available cross-linked polyglycerol-modified organosilicones include KSG-710, KSG-810, KSG-820, KSG-830, and KSG-840 (all manufactured by Shin-Etsu Chemical Industry Co., Ltd.) which are formed by swelling these compounds using silicone oil, hydrocarbon oil, ester oil, etc.
[0063] • Ingredient (C)
[0064] The non-volatile, non-polar oil that forms component (C1) can be, for example, selected from at least one of non-volatile hydrocarbon oils and non-volatile silicone oils, with non-volatile silicone oils being preferred. The non-volatile hydrocarbon oil that forms component (C1) can be, for example, selected from one or more straight-chain or branched hydrocarbon oils such as liquid paraffin, light flowing isoparaffins, light isoparaffins, flowing isoparaffins, squalane, and squalene, with light flowing isoparaffins and flowing isoparaffins being preferred, and light flowing isoparaffins being even more preferred. The non-volatile silicone oil that forms component (C1) can be, for example, selected from one or more of polydimethylsiloxane (dimethylpolysiloxane), methylphenylpolysiloxane, and methylhydropolysiloxane, with polydimethylsiloxane being preferred. Examples of commercially available non-volatile, non-polar oils suitable as a component (C1) include polydimethylsiloxane (KF-96A-10CS, KF-96A-6CS) manufactured by Shin-Etsu Chemical Industry Co., Ltd., and light, flowing isoparaffins (PARLEAM (registered trademark) 4) manufactured by Nippon Yu Corporation. Examples of non-volatile, polar oils suitable as a component (C2) include one or more selected from ester oils, ether oils, higher fatty acids, and higher alcohols. Examples of commercially available non-volatile, polar oils suitable as a component (C2) include isopropyl palmitate (EXCEPARL IPP) manufactured by Kao Corporation.
[0065] Other ingredients
[0066] In emulsified cosmetic X, other ingredients besides those mentioned above may also be included as needed. For example, in emulsified cosmetic X, especially when it is formulated as a rinse-off type, ethanol is preferably included from the perspective of its easy spreadability upon application. In emulsified cosmetic X, the mass ratio of ethanol to water in constituent component (D) is preferably 0.7 to 2.5, more preferably 0.9 to 1.8. Additionally, emulsified cosmetic X may also contain volatile oils. In emulsified cosmetic X, the content of volatile oils is preferably kept to 10% by mass or less. Furthermore, emulsified cosmetic X may also contain polyols. For emulsified cosmetic X, from the viewpoint of water repellency, the content of polyols is preferably kept to 2% by mass or less. Examples of polyols selected as constituent component (D) include one or more selected from glycerin, 1,3-butanediol, propylene glycol, dipropylene glycol, polyglycerol, polyethylene glycol, etc., among which 1,3-butanediol is preferred.
[0067] [Other Implementation Methods]
[0068] As described above, embodiments of the present invention have been explained, but the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the present invention. For example, the emulsified cosmetic X involved in this embodiment may not be a water-in-oil (W / O) emulsion, but may be configured as an oil-in-water (O / W) emulsion.
[0069] Regarding the above-described embodiments, the present invention is further disclosed in the following configuration.
[0070] <1> An emulsified cosmetic, which contains the following ingredients (A) to (D).
[0071] (A) Silica particles: 0.5% by mass to 10% by mass;
[0072] (B) Modified organosilicon: 0.3% by mass to 4% by mass;
[0073] (C) Non-volatile oils that are liquid at 25°C: 20% by mass to 40% by mass;
[0074] (D) Water: 5% to 78% by mass.
[0075] <2> An emulsified cosmetic, which contains the following ingredients (A) to (D).
[0076] (A) Porous silica particles with an average particle size of 3 μm to 12 μm: 0.5% to 10% by mass;
[0077] (B) Polyether-modified silicone: 0.3% by mass to 4% by mass;
[0078] (C) A non-volatile oil selected from one or more of polydimethylsiloxane and light, flowing isoparaffins that is liquid at 25°C: 20% by mass to 40% by mass;
[0079] (D) Water: 5% to 78% by mass.
[0080] <3> An emulsified cosmetic, which contains the following ingredients (A) to (D).
[0081] (A) Silica particles: 2% by mass to 5% by mass;
[0082] (B) Modified organosilicon: 0.5% by mass to 3% by mass;
[0083] (C) Non-volatile oils that are liquid at 25°C: 25% by mass to 35% by mass;
[0084] (D) Water: 5% to 78% by mass.
[0085] <4> An emulsified cosmetic, which contains the following ingredients (A) to (D).
[0086] (A) Porous silica particles with an average particle size of 3 μm to 12 μm: 2% to 5% by mass;
[0087] (B) Polyether-modified silicone: 0.5% by mass to 3% by mass;
[0088] (C) A non-volatile oil selected from one or more of polydimethylsiloxane and light, flowing isoparaffins that is liquid at 25°C: 25% by mass or more and 35% by mass or less;
[0089] (D) Water: 5% to 78% by mass.
[0090] <5> The emulsified cosmetic as described in any one of <1> to <4>, wherein at least a portion of the above-mentioned component (B) and component (C) forms a water-repellent coating.
[0091] <6> The emulsified cosmetic as described in any one of <1> to <5>, wherein the above-mentioned ingredient (A) comprises an ingredient (A1) consisting of silica particles with an oil absorption of 250 mL / 100 g or more.
[0092] <7> The emulsified cosmetic as described in <6>, wherein the above-mentioned component (A1) is porous silica particles.
[0093] <8> The emulsified cosmetic as described in <6> or <7>, wherein the above-mentioned ingredient (A) further comprises an ingredient (A2) consisting of silica particles with an oil absorption of less than 250 mL / 100 g.
[0094] <9> The emulsified cosmetic as described in <8>, wherein the mass ratio of the above-mentioned ingredient (A2) to the above-mentioned ingredient (A1) (A2) / (A1) is 0.3 or more and 35 or less.
[0095] <10> The emulsified cosmetic as described in any one of <1> to <9>, wherein the average particle size of the above-mentioned component (A) is more than 1 μm and less than 15 μm.
[0096] <11> The emulsified cosmetic as described in any one of <1> to <10>, wherein the above-mentioned ingredient (B) comprises one or more selected from polyether modified organosilicon, oxazoline modified organosilicon, polyglycerol modified organosilicon, polyether-alkyl co-modified organosilicon, and polyglycerol-alkyl co-modified organosilicon.
[0097] <12> The emulsified cosmetic as described in <11>, wherein the above-mentioned ingredient (B) contains a main chain of organosilicon chains that are linear polyether-modified organosilicon chains.
[0098] <13> Emulsified cosmetics as described in <11> or <12>, wherein the above-mentioned ingredient (B) comprises a polyglycerol-modified silicone surfactant having a branched silicone chain.
[0099] <14> The emulsified cosmetic as described in any one of <11> to <13>, wherein the above-mentioned ingredient (B) comprises a cross-linked modified organosilicon.
[0100] <15> The emulsified cosmetic as described in any one of <1> to <14>, wherein the mass ratio of the above-mentioned ingredient (C) to the above-mentioned ingredient (A) (C) / (A) is 2 or more and 50 or less.
[0101] <16> The emulsified cosmetic as described in any one of <1> to <15>, wherein the above-mentioned ingredient (C) comprises an ingredient (C1) composed of a non-polar oil.
[0102] <17> The emulsified cosmetic as described in <16>, wherein the above-mentioned ingredient (C1) comprises one or more straight-chain or branched hydrocarbon oils selected from liquid paraffin, light flowing isoparaffin, light isoparaffin, flowing isoparaffin, squalane, squalene, etc.
[0103] <18> The emulsified cosmetic as described in <17>, wherein the above-mentioned ingredient (C1) is selected from one or more of polydimethylsiloxane and light, flowing isoparaffins.
[0104] <19> The emulsified cosmetic as described in any one of <16> to <18>, wherein the mass ratio of the above-mentioned ingredient (C1) to the above-mentioned ingredient (C) (C1) / (C) is 0.33 or more and 1 or less.
[0105] <20> The emulsified cosmetic as described in any one of <16> to <19>, wherein the mass ratio of the above-mentioned component (C1) to the above-mentioned component (A) (C1) / (A) is 2 or more and 50 or less.
[0106] <21> The emulsified cosmetic as described in any one of <1> to <20>, wherein the above-mentioned ingredient (C) comprises an ingredient (C2) consisting of a non-volatile polar oil.
[0107] <22> The emulsified cosmetic as described in <21>, wherein the above-mentioned ingredient (C2) comprises one or more selected from ester oils, ether oils, higher fatty acids, and higher alcohols.
[0108] <23> Emulsified cosmetics as described in <21> or <22>, wherein the above-mentioned ingredient (C2) is an ester oil.
[0109] <24> The emulsified cosmetic product as described in any one of <1> to <23>, wherein the emulsified cosmetic product is configured as a rinse-off type.
[0110] <25> The emulsified cosmetic as described in <24>, wherein the content of the above-mentioned ingredient (C) is more than 30% by mass and less than 40% by mass.
[0111] <26> The emulsified cosmetic product as described in any one of <1> to <23>, wherein the emulsified cosmetic product is configured as a no-rinse type.
[0112] <27> The emulsified cosmetic as described in <26>, wherein the content of the above-mentioned ingredient (C) is more than 20% by mass and less than 30% by mass.
[0113] <28> The emulsified cosmetic as described in any one of <1> to <27>, wherein it further contains ethanol, and the mass ratio of ethanol to component (D) is 0.7 to 2.5.
[0114] <29> The emulsified cosmetic as described in any one of <1> to <28>, wherein the content of polyol is less than 2% by mass.
[0115] [Examples and Comparative Examples]
[0116] General Description
[0117] Examples of the present invention will be described, but the present invention is not limited to the examples, and the examples cannot be used to explain the present invention. In Examples 1 to 30 and Comparative Examples 1 to 3 of the present invention, samples of emulsified cosmetics having different compositions were prepared, and each composition was evaluated. In the tables shown below, the numerical values listed for the components of the emulsified cosmetics indicate the content (mass %) in the emulsified cosmetics. First, the evaluation method common to Examples 1 to 30 and Comparative Examples 1 to 3 will be described.
[0118] • Determination of contact angle and determination of contact angle score
[0119] In the evaluation of contact angle, a sample of emulsified cosmetic was dropped onto a PMMA plate (5×5cm, manufactured by Fuji Chemical Co., Ltd.) and applied with a finger until it reached 1 mg / cm². 2Next, the PMMA plate was rinsed with tap water for 5 seconds, and then gently pressed with a cloth (towel) to remove surface water droplets, forming a coating. On the formed coating, an automatic contact angle meter DM501Hi (manufactured by Kyowa Interface Science Co., Ltd.) was used to drop 10 μL of purified water (used as artificial sweat) onto the coating using the droplet method, and the contact angle of the water was measured. The contact angle is the value 30 seconds after the addition of the purified water droplet. In this evaluation, it was confirmed that the contact angle of purified water and artificial sweat that reproduced the components of sweat were the same; therefore, purified water was used as artificial sweat. The larger the contact angle, the less likely sweat is to stick to the skin after sweating. The contact angle was evaluated according to five levels: "1: 60° or less", "2: greater than 60° and less than 70°", "3: greater than 70° and less than 75°", "4: greater than 75° and less than 80°", and "5: greater than 80°".
[0120] • Dry feeling (after sweating)
[0121] In the evaluation of dryness (after sweating), a sample of emulsified cosmetic was dropped onto artificial leather (5×5cm, experimental black Laforet leather manufactured by Okamoto Chemical Co., Ltd.) and applied with a finger until it reached 1mg / cm³. 2 Next, rinse the artificial leather with tap water for 5 seconds, then gently press with a cloth (towel) to remove surface water droplets, forming a coating. Spray this coating with a fine mist of water (approximately 10 mg / cm³) to create artificial sweat. 2 Next, a sensory evaluation was conducted on the dry feel of the coating upon touch. The dryness (after sweating) was evaluated using a five-level scale: "1: Not dry", "2: Not very dry", "3: Slightly dry", "4: Dry", and "5: Very dry".
[0122] • Dry feeling (right after application)
[0123] In the evaluation of dryness (immediately after application), a sample of emulsified cosmetic was dropped onto artificial leather (5×5cm, experimental black Laforet leather manufactured by Okamoto Chemical Co., Ltd.) and applied with a finger until it reached 1mg / cm³. 2 Next, rinse the artificial leather with tap water for 5 seconds, then gently press with a cloth (towel) to remove surface water droplets, forming a coating film. Afterward, evaluate the dry feel of the coating film by touch. The dryness (immediately after application) is evaluated using a five-level scale: "1: Not dry," "2: Not very dry," "3: Slightly dry," "4: Dry," and "5: Very dry."
[0124] • No dryness or tightness after application (immediately after application)
[0125] In the evaluation of no astringent feeling (immediately after application), a sample of emulsified cosmetic was dropped onto artificial leather (5×5cm, experimental black Laforet leather manufactured by Okamoto Chemical Co., Ltd.) and applied with a finger until it reached 1mg / cm³. 2 Next, rinse the artificial leather with tap water for 5 seconds, then gently press with a cloth (towel) to remove surface water droplets, forming a coating film. Afterward, evaluate the tactile feel of the coating film by touch. For no tactile feel (immediately after application), evaluate using a five-level rating system: "1: Tactile," "2: Slightly Tactile," "3: Not Very Tactile," "4: Not Tactile," and "5: Not Tactile at All."
[0126] • No greasy feeling (right after application)
[0127] In the evaluation of non-greasy feeling (freshly applied), a sample of emulsified cosmetic was dropped onto artificial leather (5×5cm, experimental black Laforet leather manufactured by Okamoto Chemical Co., Ltd.) and spread with a finger until it reached 1mg / cm³. 2 Next, rinse the artificial leather with tap water for 5 seconds, then gently press with a cloth (towel) to remove surface water droplets, forming a coating film. Afterward, evaluate the greasy feel of the coating film by touch. For no greasy feel (immediately after application), evaluate using a five-level rating system: "1: Greasy," "2: Slightly Greasy," "3: Not Very Greasy," "4: Not Greasy," and "5: Not Greasy at All."
[0128] • No unnatural whitening after application
[0129] In the evaluation of no unnatural whitening (immediately after application), a sample of emulsified cosmetic was dropped onto artificial leather (5×5cm, experimental black Laforet leather manufactured by Okamoto Chemical Co., Ltd.) and applied with a finger until it reached 1mg / cm³. 2 Next, the artificial leather is rinsed with tap water for 5 seconds, and then gently pressed with a cloth (towel) to remove surface water droplets, forming a coating film. The appearance (unnatural whitening) of the coating film is then sensorily evaluated. For the absence of unnatural whitening (immediately after application), an evaluation is given based on five levels: "1: Unnatural whitening present," "2: Slightly unnatural whitening," "3: Almost no unnatural whitening," "4: No unnatural whitening," and "5: No unnatural whitening at all."
[0130] Examples 1-10
[0131] In Examples 1-10, samples of emulsified cosmetics composed of the ingredients shown in Table 1 were prepared. Various changes were made to the composition of ingredient (A) in the samples of emulsified cosmetics in Examples 1-10. In the sample of Example 2, the content of both ingredients (A1) and (A2) was lower than that of the sample of Example 1. In the samples of Examples 3 and 4, the content of both ingredients (A1) and (A2) was higher than that of the sample of Example 1. In the sample of Example 5, the content of ingredient (A1) was lower than that of ingredient (A2) compared to that of the sample of Example 1. In the sample of Example 6, the content of ingredient (A1) was higher than that of ingredient (A2) compared to that of the sample of Example 1. In the samples of Examples 7-10, the types of ingredients (A) differed compared to the sample of Example 1. Regarding the total content of component (A), Examples 5-10 are the same as Example 1, Example 2 is less than Example 1, and Examples 3 and 4 are more than Example 1.
[0132] Table 1 shows the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) for the samples involved in Examples 1 to 10. Additionally, Table 1 also shows the mass ratio of ethanol to water for the samples involved in Examples 1 to 10. In the samples involved in Examples 1 to 10, the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) are all within the range of the above-described embodiments.
[0133] Table 1 shows the evaluation results of the samples involved in Examples 1 to 10. Regarding contact angle scores, good evaluation results were obtained in Examples 1 to 10. Regarding dryness (after sweating), good evaluation results were obtained in Examples 1 to 10, and particularly good evaluation results were obtained in Examples 1, 3, 4, 6 to 10, where the content of component (A1) was high. Regarding dryness (immediately after application), good evaluation results were obtained in Examples 1 to 10, and particularly good evaluation results were obtained in Examples 1, 3, 4, 6 to 9, where the content of component (A1) was high. Regarding no astringent feeling (immediately after application), good evaluation results were obtained in Examples 1 to 10, and particularly good evaluation results were obtained in Examples 1 to 5, 7 to 10, where the content of component (A2) was equal to or greater than the content of component (A1). Regarding no greasy feeling (immediately after application), good evaluation results were obtained in Examples 1 to 10. Regarding the unnatural whitening (immediately after application), good evaluation results were obtained in Examples 1 to 10, and particularly good evaluation results were obtained in Examples 1, 2, 5 to 8, and 10, where the total content of ingredients (A1) and (A2) was not high.
[0134] [Table 1]
[0135]
[0136] 1) Porous silica SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g).
[0137] 2) Porous silica SYLYSIA (registered trademark) 420 (manufactured by Fuji SILYSIA Chemical Co., Ltd., average particle size: 3.1μm, oil absorption: 280mL / 100g).
[0138] 3) Porous silica SUNSPHERE (registered trademark) H-122 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 12μm, oil absorption: 300mL / 100g).
[0139] 4) Porous silica SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g).
[0140] 5) KF-6017 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0141] 10) KF-96A-10CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0142] 15) Purified water.
[0143] 16) Ethanol (concentration 95%).
[0144] 17) Menthol JP (TAB) COS (manufactured by Takasago Flavor Industry Co., Ltd.).
[0145] 18) Talc JA-68R (manufactured by Asada Flour Co., Ltd.).
[0146] 20) Non-porous silica TMS-01 (manufactured by TAYCA Corporation, average particle size: 1μm, oil absorption: 40mL / 100g).
[0147] 21) Porous silica SILICA MICRO BEAD LB-1500 (average particle size: 14μm, oil absorption: 230mL / 100g).
[0148] Examples 11-18
[0149] In Examples 11-18, samples of emulsified cosmetics composed of the ingredients shown in Table 2 were prepared. Various changes were made to the composition of ingredient (B) in the samples of emulsified cosmetics in Examples 11-18. In the samples of Examples 11-15, the types of ingredient (B) differed from those of the sample of Example 1. In the sample of Example 16, both the ingredient (B) of the sample of Example 1 and the ingredient (B) of the sample of Example 15 were used. In the sample of Example 17, the content of ingredient (B) was lower than that of the sample of Example 1. In the sample of Example 18, the content of ingredient (B) was higher than that of the sample of Example 1. Regarding the total content of ingredient (B), Examples 11-16 were the same as Example 1, Example 17 had less than Example 1, and Example 18 had more than Example 1.
[0150] Table 2 shows the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) for the samples involved in Examples 11-18. Additionally, Table 2 also shows the mass ratio of ethanol to water for the samples involved in Examples 11-18. In the samples involved in Examples 11-18, the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) are all within the range of the above-described embodiments.
[0151] Table 2 shows the evaluation results of the samples involved in Examples 11-18. Regarding contact angle scores, good evaluation results were obtained in Examples 11-18. Regarding dryness (after sweating), good evaluation results were obtained in Examples 11-18, and particularly good evaluation results were obtained in Examples 8-12 and 14, where the total content of component (B) was not small. Regarding dryness (immediately after application), good evaluation results were obtained in Examples 11-18, and particularly good evaluation results were obtained in Examples 11-16 and 18, where the total content of component (B) was not small. Regarding no astringent feeling (immediately after application), good evaluation results were obtained in Examples 11-18. Regarding no greasy feeling (immediately after application), good evaluation results were obtained in Examples 11-18, and particularly good evaluation results were obtained in Examples 11-17, where the total content of component (B) was not large. Regarding unnatural whitening (immediately after application), good evaluation results were obtained in Examples 11-18.
[0152] [Table 2]
[0153]
[0154] 1) Porous silica SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g).
[0155] 4) Porous silica SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g).
[0156] 5) KF-6017 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0157] 6) KF-6015 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0158] 7) ABIL EM-90 (manufactured by Evonik Japan Co., Ltd.).
[0159] 8) ABIL EM-120 (manufactured by Evonik Japan Co., Ltd.).
[0160] 9) OS-88 (manufactured by Kao Corporation, Polysilicone-9 (concentration 30%, ethanol: 70%)).
[0161] 10) KF-96A-10CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0162] 15) Purified water.
[0163] 16) Ethanol (concentration 95%).
[0164] 17) Menthol JP (TAB) COS (manufactured by Takasago Flavor Industry Co., Ltd.).
[0165] 18) Talc JA-68R (manufactured by Asada Flour Co., Ltd.).
[0166] 22) KF-6106 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0167] Examples 19-24
[0168] In Examples 19-24, samples of emulsified cosmetics composed of the ingredients shown in Table 3 were prepared. Various changes were made to the composition of ingredient (C) in the samples of emulsified cosmetics in Examples 19-24. In the sample of Example 19, the content of ingredient (C1) was less than that of the sample of Example 1. In the sample of Example 20, the content of ingredient (C1) was more than that of the sample of Example 1. In the sample of Example 21, the type of ingredient (C1) was different from that of the sample of Example 1, and it also contained volatile oil. In the sample of Example 22, the type of ingredient (C1) was different from that of the sample of Example 1. In the samples of Examples 23 and 24, the ingredient (C2) was also contained compared to that of the sample of Example 1. Regarding the total content of ingredient (C), Examples 22-24 were the same as Example 1, less than Example 1 in Examples 19 and 21, and more than Example 1 in Example 20.
[0169] Table 3 shows the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) for the samples involved in Examples 19-24. Additionally, Table 3 also shows the mass ratio of ethanol to water for the samples involved in Examples 19-24. In the samples involved in Examples 19-24, the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) are all within the range of the above-described embodiments.
[0170] Table 3 shows the evaluation results of the samples involved in Examples 19-24. Regarding the contact angle score, good evaluation results were obtained in Examples 19-24, and particularly good evaluation results were obtained in Examples 19-23, where the content of component (C1) was higher than that of component (C2). Regarding the dryness (after sweating), good evaluation results were obtained in Examples 19-24. Regarding the dryness (immediately after application), good evaluation results were obtained in Examples 19-24. Regarding the absence of a sticky feeling (immediately after application), good evaluation results were obtained in Examples 19-24. Regarding the absence of an oily feeling (immediately after application), good evaluation results were obtained in Examples 19-24, and particularly good evaluation results were obtained in Examples 19 and 21-24, where the content of component (C) was low. Regarding the unnatural whitening (immediately after application), good evaluation results were obtained in Examples 19-24.
[0171] [Table 3]
[0172]
[0173] 1) Porous silica SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g).
[0174] 4) Porous silica SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g).
[0175] 5) KF-6017 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0176] 10) KF-96A-10CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0177] 11) KF-96A-6CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0178] 12) Light, flowing isoparaffins (manufactured by Nippon Oil Co., Ltd., PARLEAM4).
[0179] 13) EXCEPARL IPP (manufactured by Kao Corporation).
[0180] 14) KF-96L-2CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0181] 15) Purified water.
[0182] 16) Ethanol (concentration 95%).
[0183] 17) Menthol JP (TAB) COS (manufactured by Takasago Flavor Industry Co., Ltd.).
[0184] 18) Talc JA-68R (manufactured by Asada Flour Co., Ltd.).
[0185] Examples 25-30
[0186] In Examples 25-30, samples of emulsified cosmetics composed of the ingredients shown in Table 4 were prepared. The sample in Example 25, compared to the sample in Example 1, also contained a polyol (butanediol). The sample in Example 26, compared to the sample in Example 1, contained more ingredient (D), and correspondingly contained no ethanol, menthol, or talc, while the contents of ingredients (A) and (C) were even lower. The samples in Examples 27-30 did not contain ingredient (A2).
[0187] Table 4 shows the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) for the samples involved in Examples 25-30. Additionally, Table 4 also shows the mass ratio of ethanol to water for the samples involved in Examples 25-30. In the samples involved in Examples 25-30, the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) are all within the range of the above-described embodiments.
[0188] Table 4 shows the evaluation results of the samples involved in Examples 25-30. Regarding the contact angle score, good evaluation results were obtained in Examples 25-30, and particularly good evaluation results were obtained in Examples 27-30. Regarding the dryness (after sweating), good evaluation results were obtained in Examples 25-30, and particularly good evaluation results were obtained in Examples 27-30. Regarding the dryness (immediately after application), good evaluation results were obtained in Examples 25-30, and particularly good evaluation results were obtained in Examples 27-30. Regarding the absence of a sticky feeling (immediately after application), good evaluation results were obtained in Examples 25-30, and particularly good evaluation results were obtained in Example 26. Regarding the absence of an oily feeling (immediately after application), good evaluation results were obtained in Examples 25-30. Regarding the unnatural whitening (immediately after application), good evaluation results were obtained in Examples 25-30, and particularly good evaluation results were obtained in Examples 25-28 and 30, where the total content of ingredients (A1) and (A2) was not high.
[0189] [Table 4]
[0190]
[0191] 1) Porous silica SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g).
[0192] 2) Porous silica SYLYSIA (registered trademark) 420 (manufactured by Fuji SILYSIA Chemical Co., Ltd., average particle size: 3.1μm, oil absorption: 280mL / 100g).
[0193] 4) Porous silica SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g).
[0194] 5) KF-6017 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0195] 10) KF-96A-10CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0196] 15) Purified water.
[0197] 16) Ethanol (concentration 95%).
[0198] 17) Menthol JP (TAB) COS (manufactured by Takasago Flavor Industry Co., Ltd.).
[0199] 18) Talc JA-68R (manufactured by Asada Flour Co., Ltd.).
[0200] 19) 1,3-Butanediol.
[0201] Comparative Examples 1-3
[0202] In Comparative Examples 1 to 3, samples of emulsified cosmetics composed of the ingredients shown in Table 5 were prepared. In the sample of Comparative Example 1, the content of ingredient (A) was less than that of the embodiment described above. In the sample of Comparative Example 2, the content of ingredient (B) was less than that of the embodiment described above. In the sample of Comparative Example 3, the content of ingredient (B) was more than that of the embodiment described above.
[0203] Table 5 shows the mass ratios (A2) / (A1), (C) / (A), (C1) / (A), and (C1) / (C) for the samples involved in Comparative Examples 1-3. Additionally, Table 5 also shows the mass ratio of ethanol to water for the samples involved in Comparative Examples 1-3. In the sample involved in Comparative Example 1, the mass ratios (C) / (A) and (C1) / (A) are larger than those in the embodiments described above.
[0204] Table 5 shows the evaluation results of the samples involved in Comparative Examples 1 to 3. Regarding the contact angle score, the samples involved in the above examples all obtained better evaluation results compared to the sample involved in Comparative Example 3, which had a higher content of component (B) than the above-described embodiment. Regarding the dryness (after sweating), the samples involved in the above examples all obtained better evaluation results compared to Comparative Example 1, which had a lower content of component (A) than the above-described embodiment, and Comparative Examples 2 and 3, which had a content of component (B) outside the scope of the above-described embodiment. Regarding the dryness (immediately after application), the samples involved in the above examples all obtained better evaluation results compared to Comparative Example 1, which had a lower content of component (A) than the above-described embodiment, and Comparative Examples 2 and 3, which had a content of component (B) outside the scope of the above-described embodiment. Regarding the absence of a sticky feeling (immediately after application), good evaluation results were obtained in Comparative Examples 1 to 3. Regarding the absence of an oily feeling (immediately after application), the samples involved in the above examples all obtained better evaluation results compared to Comparative Example 3, which had a higher content of component (B) than the above-described embodiment.
[0205] [Table 5]
[0206]
[0207] 1) Porous silica SUNSPHERE (registered trademark) H-32 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 3μm, oil absorption: 300mL / 100g).
[0208] 4) Porous silica SUNSPHERE (registered trademark) L-51 (manufactured by AGC Si-Tech Co., Ltd., average particle size: 5μm, oil absorption: 150mL / 100g).
[0209] 5) KF-6017 (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0210] 10) KF-96A-10CS (manufactured by Shin-Etsu Chemical Industry Co., Ltd.).
[0211] 15) Purified water.
[0212] 16) Ethanol (concentration 95%).
[0213] 17) Menthol JP (TAB) COS (manufactured by Takasago Flavor Industry Co., Ltd.).
[0214] 18) Talc JA-68R (manufactured by Asada Flour Co., Ltd.).
[0215] • Evaluation of no-rinse type
[0216] The samples described above were evaluated as rinse-free types, while the samples in Examples 1, 19, and 20, with different contents of component (C), were also evaluated as no-rinse types. In the evaluations of the no-rinse types, the process of "rinsing the PMMA board with tap water for 5 seconds and gently pressing it with a cloth (towel) to remove surface water droplets" was omitted from the evaluation methods described above; that is, the coating film before rinsing was evaluated.
[0217] Table 6 shows the evaluation results of the samples involved in Examples 1, 19, and 20 as rinse-free products. Regarding the contact angle score, good evaluation results were obtained in Examples 1, 19, and 20. Regarding the dryness (after sweating), good evaluation results were obtained in Examples 1, 19, and 20, and particularly good evaluation results were obtained in Examples 1 and 19, where the content of ingredient (C) was low. Regarding the dryness (immediately after application), good evaluation results were obtained in Examples 1, 19, and 20, and particularly good evaluation results were obtained in Examples 1 and 19, where the content of ingredient (C) was low. Regarding the absence of a sticky feeling (immediately after application), good evaluation results were obtained in Examples 1, 19, and 20. Regarding the absence of an oily feeling (immediately after application), good evaluation results were obtained in Examples 1, 19, and 20, and particularly good evaluation results were obtained in Examples 1 and 19, where the content of ingredient (C) was low. Regarding the unnatural whitening (immediately after application), good evaluation results were obtained in Examples 1, 19, and 20.
[0218] [Table 6]
[0219]
[0220] • Evaluation of viscosity value (after sweating)
[0221] The viscosity values (after sweating) of the samples involved in Examples 1, 15, 23, 24 and Comparative Examples 1-3 were evaluated. The viscosity value is a value representing adhesiveness and is an evaluation index of the stickiness of the skin after sweating. In the viscosity value evaluation, the formulation was applied dropwise to a 5cm × 5cm area on the inner side of the forearm and spread with the finger to a concentration of 1 mg / cm². 2 Next, the PMMA plate was rinsed with tap water for 5 seconds, and then gently pressed with a cloth (towel) to remove surface water droplets, forming a coating film. It was then placed in an ambient temperature chamber set at 30°C and 80% RH, and left in a quiet environment for 15 minutes. The tackiness value of the coated area was then measured using a friction tester (Handy Rub Tester TL701, manufactured by Trinity-Lab Co., Ltd.). Regarding the tackiness value, the probe of the friction tester was pressed vertically onto the skin, and the force applied upon lifting was taken as the tackiness value. It was found that the higher the tackiness value, the stronger the stickiness to the skin. The tackiness value was evaluated according to five levels: "1: greater than 13", "2: greater than 10 and less than 13", "3: greater than 8 and less than 10", "4: greater than 5 and less than 8", and "5: less than 5".
[0222] Table 7 shows the evaluation results of the viscosity values of the samples involved in Examples 1, 15, 23, 24 and Comparative Examples 1-3. Regarding the viscosity value scores, the samples involved in Examples 1, 15, 23, and 24 all obtained better results than the samples involved in Comparative Examples 1-3, and particularly good evaluation results were obtained in Examples 1 and 15, which did not contain component (C2).
[0223] [Table 7]
[0224]
[0225] Industrial availability
[0226] The present invention can improve the effect of emulsified cosmetics in suppressing discomfort caused by sweating.
Claims
1. An emulsified cosmetic, wherein, It contains the following components (A) to (D). (A) Silica particles: 0.5% by mass to 10% by mass; (B) Modified organosilicon: 0.3% by mass to 4% by mass; (C) Non-volatile oils that are liquid at 25°C: 20% by mass to 40% by mass; (D) Water: 5% to 78% by mass.
2. The emulsified cosmetic as described in claim 1, wherein, The component (A) comprises a component (A1) consisting of silica particles with an oil absorption capacity of 250 mL / 100 g or more.
3. The emulsified cosmetic as described in claim 2, wherein, The component (A) also includes component (A2) consisting of silica particles with an oil absorption of less than 250 mL / 100 g.
4. The emulsified cosmetic as described in claim 3, wherein, The mass ratio of component (A2) to component (A1) is 0.3 or more and 35 or less.
5. The emulsified cosmetic as described in any one of claims 1 to 4, wherein, The average particle size of component (A) is between 1 μm and 15 μm.
6. The emulsified cosmetic as described in any one of claims 1 to 4, wherein, The component (B) comprises one or more selected from polyether-modified organosilicon, oxazoline-modified organosilicon, polyglycerol-modified organosilicon, polyether-alkyl co-modified organosilicon, and polyglycerol-alkyl co-modified organosilicon.
7. The emulsified cosmetic as described in any one of claims 1 to 4, wherein, The mass ratio of component (C) to component (A) is 2 or more and 50 or less.
8. The emulsified cosmetic as described in any one of claims 1 to 4, wherein, The component (C) includes component (C1) which is composed of non-polar oil.
9. The emulsified cosmetic as described in claim 8, wherein, The mass ratio of component (C1) to component (C) is 0.33 or more and 1 or less.
10. The emulsified cosmetic as described in claim 8, wherein, The mass ratio of component (C1) to component (A) (C1) / (A) is more than 2 and less than 50.
11. The emulsified cosmetic as described in any one of claims 1 to 4, wherein, This emulsified cosmetic is formulated as a rinse-off type.
Citation Information
Patent Citations
Aerosol hair dressing agent
JP2009256367A
Liquid oleaginous cosmetic
JP2022125619A
Hair cosmetic
JP2022151056A