JP2009235001A - Cleansing cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transparent oil-based cleansing cosmetic which can be taken off and rinsed with ease, which does not cause white turbidity nor significant thickening due to emulsifying or suspension even when a significant quantity of water gets mixed, and which is excellent in stability. <P>SOLUTION: The cleansing cosmetic comprises (a) 30-90 mass% oil component containing at least one ester group in its molecule and having a mass average molecular weight of 200-400, (b) 0-6 mass% nonpolar hydrocarbon oil, (c) 1-20 mass% volatile silicone oil, (d) 2-50 mass% polyoxyethylene branched fatty acid glyceride (an EO addition mol number of 5-20), (e) 2-30 mass% polyoxyethylene linear fatty acid glyceride (an EO addition mol number of 5-20), and (f) 0.1-5 mass% water, the mass ratio of (d) component/(e) component being 1.0-10.0. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cleansing cosmetic. More specifically, the present invention relates to a transparent oil-based cleansing cosmetic that is excellent in make-up removal and rinsing, and does not become cloudy or thicken due to emulsification or suspension even when a significant amount of water is mixed.

  Up to now, even if a significant amount of water is mixed in, it does not cause thickening or cloudiness, and even if it is used in a wet environment such as a bathroom or a washstand, the cleansing power is reduced and the appearance and usability are reduced. Much research has been done to provide transparent oil-based cleansing cosmetics that do not deteriorate.

  For example, JP 2004-238376 A (Patent Document 1) discloses a liquid nonionic surfactant having a polyalkylene glycol chain having an IOB of 0.75 to 1.05, and an IOB of 1.1 to 2.0. Water-soluble nonionic surfactant, a nonionic surfactant having an IOB of 0.25 to 0.60 or a transparent liquid oil composition containing specific amounts of high-polar oil, liquid oil, and water, respectively. It has been shown that even when used by hand, it does not become cloudy and is excellent in massage feeling, ease of rinsing and the like. However, the transparent liquid oil composition disclosed in the publication mainly contains liquid paraffin as a liquid oil, and the solubility of the makeup material, in particular, the solubility of a silicone resin-containing makeup material such as mascara is not sufficient and is rinsed. There is a problem that it sometimes gets wet and does not clean.

  Japanese Patent Application Laid-Open No. 2007-39366 (Patent Document 2) discloses a cleansing cosmetic containing a base oil and a nonionic surfactant, wherein sorbitan isostearate, sorbitan oleate, and stearic acid are used as the nonionic surfactant. A first surfactant composed of at least one of sorbitans and a second surfactant composed of polyoxyethylene coconut oil fatty acid glyceryl are each used in a specific amount range, and if desired, polyglycerin may be used. It has been shown that cleansing cosmetics containing specific amounts of fatty acid esters and water do not become cloudy even when used with wet hands, and are excellent in ease of washing. However, the cleansing cosmetic of the publication does not contain a volatile silicone oil, the solubility of the makeup material, in particular, the solubility of a silicone resin-containing makeup material such as mascara is insufficient, and the rinsing is performed when rinsing. There is a problem of not refreshing.

  Japanese Patent Application Laid-Open No. 2004-26791 (Patent Document 3) discloses a polyglycerin fatty acid ester having an IOB of 0.75 to 1.2 and a nonionic surfactant having an IOB of 1.1 or more (excluding the polyglycerin fatty acid ester). ), Cleansing cosmetics each containing a specific amount of liquid oil component and water do not become cloudy even when used with wet hands, and it is shown that they are excellent in washability, makeup removal, and the like. However, the cleansing cosmetics disclosed in this publication mainly contain liquid paraffin as a liquid oil, and the solubility of the makeup material, in particular, the solubility of the makeup material containing a silicone resin such as mascara is not sufficient. There is a problem of not refreshing.

  JP-A-2004-2292 (Patent Document 4) includes one or more nonionic surfactants selected from oleic acid monoglyceride, linoleic acid monoglyceride, isostearic acid monoglyceride and isostearyl pentaerythryl ether, IOB. A cleansing cosmetic comprising 1.1 or more of a nonionic surfactant and an oil component, and optionally further containing a higher alcohol, glycerin derivative or higher fatty acid having an IOB of 0.6 or less, and water of 10% by mass or less. It is disclosed. However, the cleansing material disclosed in this publication contains a high amount of liquid paraffin as an oil component, and the solubility of the makeup material, in particular, the solubility of a silicone resin-containing makeup material such as mascara is not sufficient. There is a problem of not refreshing.

JP 2004-238376 A JP 2004-238376 A JP 2004-26791 A JP 2004-2292 A

  The present invention has been made to solve the above-mentioned problems of the prior art, and its purpose is excellent in make-up removal and rinsing, and even if a significant amount of water is mixed, it becomes cloudy by emulsification or suspension. The object of the present invention is to provide a transparent oil-based cleansing cosmetic that is excellent in stability and does not significantly thicken.

  In order to solve the above-mentioned problems, the present inventors have conducted intensive research, and as a result, a sufficient make-off effect is realized by high blending of an ester oil having a mass average molecular weight of 200 to 400 and a volatile silicone oil. It has been found that, by combining polyoxyethylene branched fatty acid glycerin and polyoxyethylene straight chain fatty acid glycerin as specific surfactants in a specific amount range, refreshing, water resistance and system stability can be obtained during rinsing. The invention has been completed.

That is, this invention relates to the cleansing cosmetics which contain the following (a)-(f) component and is (d) component / (e) component = 1.0-10.0 (mass ratio).
(A) 30 to 90% by mass of an oil component having an ester group in the molecule and having a mass average molecular weight of 200 to 400,
(B) 0-6 mass% of nonpolar hydrocarbon oil,
(C) 1-20% by mass of volatile silicone oil,
(D) 2-50 mass% of polyoxyethylene branched fatty acid glycerin (ethylene oxide addition mole number 5-20),
(E) 2-30 mass% of polyoxyethylene linear fatty acid glycerin (ethylene oxide addition mole number 5-20), and (f) water 0.1-5 mass%.

  According to the present invention, there is provided a transparent oil-based cleansing cosmetic that is excellent in make-up removal and rinsing and does not become cloudy due to emulsification or suspension or does not thicken greatly even if a significant amount of water is mixed. The

  In the above description, “significant amount of water” refers to mixing of approximately 10 to 60 parts by mass of water with respect to 100 parts by mass of the cleansing cosmetic of the present invention.

  Hereinafter, the present invention will be described in detail.

  The component (a) of the present invention is an oil component having a mass average molecular weight of 200 to 400 and containing at least one ester group in the molecule. Specifically, cetyl octanoate (CIO), octyl palmitate, isopropyl palmitate, isopropyl myristate, isotridecyl isononanoate, isodecyl isononanoate, isononyl isononanoate, ethylhexyl isononanoate, isodecyl neopentanoate, octyl neopentanoate, etc. Oil. However, it is not limited to these examples. Of these, cetyl octoate, octyl palmitate and the like are preferable from the viewpoint of refreshing usability. (A) A component can use 1 type (s) or 2 or more types.

  (A) The compounding quantity of a component is 30-90 mass% in this invention cleansing cosmetics, Preferably it is 50-70 mass%. If the blending amount is less than 30% by mass, a sufficient make-up removal effect cannot be obtained. On the other hand, if the blending amount exceeds 90% by mass, other blending components, particularly surfactants cannot be blended sufficiently, and the washability is eliminated. Decreases.

  In the cleansing cosmetic composition of the present invention, it is desirable not to blend an ester oil having a molecular weight of less than 200 or an ester oil having a molecular weight of more than 400, but it can be blended within a range that does not impair the object and effect of the present invention. is there. When the ester oil other than the component (a) is blended, the blending amount is not general, but it is desirable that the blending amount is generally about 20% or less of the blending amount of the component (a).

The component (b) is a nonpolar hydrocarbon oil. Examples of the component (b) include liquid paraffin, petrolatum, paraffin, ceresin, microcrystalline wax, squalane and the like.
(B) The compounding quantity of a component is 0-6 mass% or less in this invention cleansing cosmetics, The aspect which does not mix | blend (b) component is also contained in this invention scope. When the component (b) exceeds 6% by mass, the other compounding components, particularly the component (a) and the component (c) cannot be blended sufficiently, and make-up dropping is reduced. (B) When mix | blending a component, 1 type (s) or 2 or more types can be used.

  The component (c) is a volatile silicone oil (low boiling point silicone oil). Examples of the component (c) include volatile cyclic silicone oil and volatile chain silicone oil. Examples of the volatile cyclic silicone oil include decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, and the like. Examples of the volatile chain silicone oil include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, hexadecamethylheptasiloxane, etc., and these may be collectively referred to as dimethylpolysiloxane (liquid). is there. Further, methylphenyl polysiloxane (liquid) in which the alkyl group of these chain silicone oils is partially substituted with a phenyl group is also included. (C) A component can use 1 type (s) or 2 or more types.

  (C) The compounding quantity of a component is 1-20 mass% in this invention cleansing cosmetics, Preferably it is 1-15 mass%. When the blending amount is less than 1% by mass, the solubility of the makeup material, particularly the solubility of the silicone resin blended makeup material such as mascara is not sufficient, while even if it exceeds 20% by mass, the makeup drop does not improve, Usability decreases, for example, a squeaky sensation occurs during use.

  (D) A component is polyoxyethylene branched fatty acid glycerin (EO addition mole number 5-20). Specific examples of the component (d) include PEG5 glyceryl isostearate (“Emalex GWIS-105”; manufactured by Nippon Emulsion), PEG6 glyceryl isostearate (“Emalex GWIS-106”; manufactured by Nippon Emulsion), and isostearic acid. PEG8 glyceryl ("Emalex GWIS-108"; manufactured by Nippon Emulsion), PEG10 glyceryl isostearate ("Emalex GWIS-110"; manufactured by Nippon Emulsion), PEG15 glyceryl isostearate ("Emalex GWIS-115"; Japan) Emulex), PEG20 glyceryl isostearate (“Emalex GWIS-120”; manufactured by Japan Emulsion), PEG10 glyceryl diisostearate (“Emalex GWIS-21”) EX "; manufactured by Nihon Emulsion Co., Ltd.), PEG20 glyceryl diisostearate (" Emalex GWIS-220EX "manufactured by Nihon Emulsion Co., Ltd.), PEG5 glyceryl triisostearate (" Emalex GWIS-305 "manufactured by Nihon Emulsion Co., Ltd.), triisostearin PEG10 glyceryl acid (“Emalex GWIS-310”; manufactured by Nippon Emulsion), PEG20 glyceryl triisostearate (“Emalex GWIS-320”; manufactured by Nippon Emulsion), and the like. However, it is not limited to these examples. (D) 1 type (s) or 2 or more types can be used for a component.

  (D) The compounding quantity of a component is 2-50 mass% in this invention cleansing cosmetics, Preferably it is 5-30 mass%. When the blending amount is less than 2% by mass, the refreshing after rinsing cannot be obtained, and the transparency of the appearance when a significant amount of water is mixed cannot be maintained. On the other hand, if it exceeds 50% by mass, the oil cannot be mixed sufficiently and a sufficient make-up removal effect cannot be obtained.

  (E) A component is polyoxyethylene linear fatty acid glycerin (EO addition mole number 5-20). Specific examples of the component (e) include coconut oil fatty acid PEG7 glyceryl (“Cethiol HE”; manufactured by Cognis), PEG5 glyceryl stearate (“Emalex GM-5”; manufactured by Nippon Emulsion), PEG5 glyceryl stearate ( “Emalex GM-5”; manufactured by Nippon Emulsion Co., Ltd., PEG 10 glyceryl stearate (“Emalex GM-10” manufactured by Nihon Emulsion Co., Ltd.), PEG 15 glyceryl stearate (“Emalex GM-15” manufactured by Nihon Emulsion Co., Ltd.) ), PEG 20 glyceryl stearate (“Emalex GM-10”; manufactured by Nihon Emulsion), PEG 5 glyceryl tristearate (“Emalex GWS-305”; manufactured by Nihon Emulsion), PEG 6 glyceryl tristearate (“Emalex”) GWS 306 "; manufactured by Nippon Emulsion Co., Ltd.), PEG10 glyceryl tristearate (" Emalex GWS-310 "; manufactured by Nihon Emulsion Co., Ltd.), PEG20 glyceryl tristearate (" Emalex GWS-320 "; manufactured by Nihon Emulsion Co., Ltd.), trio PEG5 glyceryl acrylate (“Emalex GWO-305”; manufactured by Nihon Emulsion Co., Ltd.), PEG10 glyceryl trioleate (“Emalex GWO-310”; manufactured by Nihon Emulsion Co., Ltd.), PEG20 glyceryl trioleate (“Emalex GWO- 320 "; manufactured by Nippon Emulsion Co., Ltd.). However, it is not limited to these examples. (E) 1 type (s) or 2 or more types can be used for a component.

  (E) The compounding quantity of a component is 2-30 mass% in this invention cleansing cosmetics, Preferably it is 5-20 mass%. If the blending amount is less than 2% by mass, the refreshing of rinsing cannot be obtained, and the transparency of the appearance when a significant amount of water is mixed cannot be maintained. On the other hand, if it exceeds 30% by mass, stability over time cannot be maintained.

  The total blending amount of the component (d) and the component (e) is 4 to 80% by mass, but the total blending amount of both is preferably 5 to 40% by mass from the standpoint of make-off effect and washing-out effect. .

  In the present invention, the blending ratio (mass ratio) of the component (d) and the component (e) is (d) component / (e) component = 1.0 to 10.0 (mass ratio), preferably 1.0. -8.0 (mass ratio). If the component (d) / component (e) deviates from the above range, a uniform one-phase system cannot be obtained.

  (F) A component is water and a compounding quantity is 0.1-5 mass%.

  The cleansing cosmetic composition of the present invention containing the above components (a) to (f) is a transparent and oily cleansing cosmetic composition, and is used as a skin or hair cleanser in the cosmetics field, quasi-drug field and pharmaceutical field. Can do. It is particularly preferable to use it as a makeup cleaning agent. The cleansing cosmetic of the present invention is also suitable for makeup cosmetics such as mascara formulated with a silicone resin, such as water-resistant make-up materials, which cannot be removed to the extent that conventional cleansing cosmetics can be satisfactorily satisfied. Even if it is used with wet hands, it does not become cloudy, and it can exhibit an extremely excellent make-up removal effect that it can reliably remove make-up while maintaining transparency.

  In the cleansing cosmetic of the present invention, in addition to the above-described blending components, components that are usually blended in cosmetics can be arbitrarily blended within a range that does not impair the purpose and effect of the present invention. Examples of such components include lower alcohols such as ethanol and isopropyl alcohol, polyhydric alcohols such as glycerin, 1,3-butanediol, and propylene glycol, alkyl sulfate esters, acyl glutamates, acyl sarcosine salts, N- Anionic surfactants such as acyl-N-methyltaurine salt and alkyl phosphate ester salt, amphoteric surfactants such as N-alkyl-N, N-dimethylaminoacetic acid betaine and alkyldimethylamine oxide, alkyltrimethylammonium salts, In addition to cationic surfactants such as alkylpyridinium salts and alkyl quaternary ammonium salts, solid oils, moisturizers, oil gelling agents, polymers, sugars, UV absorbers, amino acids, vitamins, drugs, and plant extracts Products, organic acids, organic amines, sequestering agents Antioxidants, antimicrobials, preservatives, cooling agents, perfumes, emollients, pigments, and the like.

  The dosage form of the cleansing cosmetic composition of the present invention is not particularly limited, and can be used as a liquid preparation, a paste-form preparation, an aerosol preparation, a sheet-impregnated preparation, etc., and is easy to apply to the skin and is familiar with the make-up. A formulation is more preferred.

  The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Unless otherwise specified, the blending amount is expressed in mass% with respect to the system in which the component is blended. Cosmetic raw materials are sold by dilution with water because they are easy to use, but all the compounding amounts shown here are pure.

  Prior to the examples, test methods and evaluation criteria for each evaluation used in this example will be described.

[Make-up effect]
(I) Cosmetics for make-up removal test In order to evaluate the make-up removal effect, a mascara (a silicone resin-containing mascara) having the following composition was used as a make-up cosmetic.
(Test cosmetic: mascara)
Hydrogenated polyisobutene Residual cyclomethicone 10.0
Trimethylsiloxysilicic acid 10.0
Dextrin palmitate 10.0
Distearyl diammonium hectorite 5.0
Microcrystalline wax 5.0
Polyethylene 3.0
PEG-10 Dimethicone 3.0
Nylon-12 2.0
Butylene glycol 1.5
Water 1.5
Tri (trimethylsiloxy) silylpropylcarbamic acid 1.0
Tetrahydrotetramethylcyclotetrasiloxane 0.5
Iron oxide 5.0
Fragrance 0.5

(Ii) Makeup evaluation test method The above-mentioned mascara (test cosmetic) is applied to the eyelashes by a professional panelist (10 persons), and after 3 hours, makeup cleansing is performed using the cleansing cosmetic (sample). The dropping effect was evaluated according to the following evaluation criteria.
(Evaluation criteria)
◎: 8 or more people recognized as having a make-off effect ○: 6-7 people recognized as having a make-off effect Δ: 3-5 people recognized as having a make-up effect ×: 2 The following names were recognized as having a make-up removal effect.

[Rinseability (freshness when rinsing)]
A professional panelist (10 persons) washed the face using cleansing cosmetics (samples), and evaluated the ease of washing during rinsing (freshness during rinsing) according to the following evaluation criteria.
(Evaluation criteria)
◎: Eight or more people recognized that it was easy to wash away (refreshed when rinsed) ○: 6-7 people recognized that it was easy to wash away (refreshed when rinsed) △: 3-5 people washed away X: Recognized as easy (refreshing during rinsing): 2 or less people recognized that it was easy to wash away (refreshing during rinsing).

[Stability]
Place the sample in a 50 mL clear glass bottle with a screw cap, leave it at 0 ° C, room temperature (25 ° C), and 50 ° C for 1 month, observe the appearance, and evaluate it according to the following evaluation criteria did.
(Evaluation criteria)
○: No change was observed in the appearance state at each temperature. X: Precipitation was formed at any temperature of 0 ° C., room temperature (25 ° C.), or 50 ° C., or a two-layer separation state was observed.

[Appearance (transparency)]
The sample was poured into a transparent resin container so as to have a thickness of 5 mm, and the visibility of the font 88 Times New Roman characters placed under the container at room temperature was evaluated by a specialized panelist (10 persons).
(Score)
5 points: The characters look very clear and the sharpness is very high. 4 points: The characters look clear and the sharpness is high. 3 points: The characters are visible but the sharpness is slightly inferior. 2 points: The characters are barely visible. However, 1 point inferior in sharpness: the character cannot be read and is opaque. The total score of the above-mentioned scores was calculated.
(Evaluation criteria)
○: Total score of 41 points or more △: Total score of 21-40 points ×: Total score of 20 points or less

[Appearance when mixed with water (transparency)]
A specialized panel (10 persons) observes the sample condition with the naked eye when using 2 g of the sample with hands wet with 1.5 g of water, and evaluates the appearance (transparency) when mixed with water according to the following criteria. did.
(Evaluation criteria)
○: 8 or more people recognized as transparent Δ: 3-7 people recognized as transparent ×: 2 or less people recognized as transparent

[Change in viscosity when mixed with water]
The viscosity of 30 parts by weight of purified water added to 70 parts by weight of the sample at room temperature and stirred until uniform was measured with a B-type viscometer and evaluated according to the following evaluation criteria.
(Evaluation criteria)
○: Increase in viscosity due to water mixing is less than 20000 (mPa · s) ×: Increase in viscosity due to water mixing is 20000 (mPa · s) or more

(Examples 1-6, Comparative Examples 1-6)
Using a cleaning material having the composition shown in Table 1 below as a sample, make-up removal, washability, stability, and appearance (transparency) were evaluated according to the above evaluation method and evaluation criteria. The results are shown in Table 1.

As is clear from the results in Table 1, the effects of the present invention were obtained with the samples of Examples 1 to 6, but the effects of the present invention were not obtained with the samples of Comparative Examples 1 to 6.
Further formulation examples are shown below.

(Example 7: Makeup cleansing cosmetic)
(Mixed component) (mass%)
Cetyl octoate Residue Octyl palmitate 2
Decamethylcyclopentasiloxane 5
PEG8 glyceryl isostearate 22
Palm oil fatty acid PEG7 glyceryl 8
Isostearic acid 1.5
Glycerin 1
Orange oil 0.1
Grape seed oil 0.1
Water 0.5
Fragrance 0.3

(Example 8: Makeup cleansing cosmetic)
(Mixed component) (mass%)
Cetyl octoate Residue Octyl palmitate 5
Safflower oil 1
Olive oil 1
Decamethylcyclopentasiloxane 5
PEG8 glyceryl isostearate 20
PEG 20 glyceryl isostearate 10
Isostearyl alcohol 2
1,3-butylene glycol 2
Water 0.5
Chamomile extract 0.5
Butylhydroxytoluene 0.5
Fragrance 0.3

(Example 9: Makeup cleansing cosmetic)
(Mixed component) (mass%)
Cetyl octanoate residue Octyl palmitate 15
Methylphenylpolysiloxane 7
PEG8 glyceryl isostearate 18
Palm oil fatty acid PEG7 glyceryl 10
Dipropylene glycol 4
Tocopherol 0.5
Trehalose 0.5
Ginger extract 0.5
N-lauroyl-L-glutamate di (phytosteryl
2-octyldodecyl) 0.1
Water 1.5
Fragrance 0.5

(Example 10: Makeup cleansing cosmetic)
(Mixed component) (mass%)
Cetyl octoate Residue Octyl palmitate 10
Liquid paraffin 1
Decamethylcyclopentasiloxane 5
PEG8 glyceryl isostearate 20
Palm oil fatty acid PEG7 glyceryl 8
Ethanol 2
Isostearic acid 2
Serine 0.1
Arginine 0.1
Water 1.5
Fragrance 0.5

Claims (1)

A cleansing cosmetic comprising the following components (a) to (f), wherein (d) component / (e) component = 1.0 to 10.0 (mass ratio).
(A) 30 to 90% by mass of an oil component having an ester group in the molecule and having a mass average molecular weight of 200 to 400,
(B) 0-6 mass% of nonpolar hydrocarbon oil,
(C) 1-20% by mass of volatile silicone oil,
(D) 2-50 mass% of polyoxyethylene branched fatty acid glycerin (ethylene oxide addition mole number 5-20),
(E) 2-30 mass% of polyoxyethylene linear fatty acid glycerin (ethylene oxide addition mole number 5-20), and (f) water 0.1-5 mass%.