JP2018123067A - Oil-in-water cosmetics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide oil-in-water cosmetics that contain electrolyte but can maintain its emulsion stability, and also has a fresh feeling in use.SOLUTION: The oil-in-water cosmetics contain following components (A)-(D): (A) electrolyte, (B) hydrophilic surfactant, (C) lipophilic surfactant, and (D) higher alcohol, and has a pH of 3-7.SELECTED DRAWING: None

Description

  The present invention relates to an oil-in-water cosmetic containing an electrolyte and excellent in feeling of use and storage stability of a preparation.

  Oil-in-water cosmetics are applied to various cosmetics due to their fresh feeling of use. In such an oil-in-water cosmetic, various ascorbic acid derivatives, arbutin, tranexamic acid, kojic acid, ellagic acid, ferulic acid and the like are blended as whitening components.

  However, in order to stably blend these whitening ingredients in oil-in-water cosmetics, the pH of the preparation is desired to be in the acidic range, and the emulsion stability of the preparation can be added even if a salt-type whitening ingredient is blended. Thus, there has been no combination of surfactants that can sufficiently satisfy these conditions, and there has been a problem that the use feeling is impaired if the storage stability of the preparation is emphasized.

  In order to solve such a problem, ascorbic acid glucoside has been studied to suppress yellowing and odor change over time (Patent Document 1, Patent Document 2), and 3-O-ethylascorbic acid has stability over time. Has been studied (Patent Document 3), but when these ingredients are blended into an oil-in-water emulsion cosmetic, a solution that still provides sufficient satisfaction from both the feeling of use and storage stability There was no law.

Japanese Patent No. 60179953 Japanese Patent No. 5138880 Japanese Patent No. 5955625

  The present invention provides an oil-in-water cosmetic that can maintain emulsification stability while blending an electrolyte such as a salt-type whitening component, and further has a fresh feeling of use of the oil-in-water cosmetic. This is the issue.

  As a result of diligent research, the present inventors have found that the above-mentioned problems can be solved by combining an electrolyte with a surfactant or a higher alcohol and adjusting the pH to a specific range, and the present invention can be solved. Was completed.

That is, the present invention includes the following components (A) to (D),
(A) Electrolyte
(B) A hydrophilic surfactant, (C) a lipophilic surfactant, (D) a higher alcohol, and an oil-in-water cosmetic characterized by having a pH of 3-7.

  According to the present invention, an oil-in-water cosmetic that is excellent in storage stability without discoloration, odor change, drainage, and the like, and further has a fresh feeling of use, while containing an electrolyte such as a salt-type whitening component. Can be obtained. Moreover, since the oil-in-water cosmetic of the present invention has a high viscosity, it is not necessary to positively use a thickener such as a water-soluble polymer that reduces the feeling of use when added.

  The component (A) electrolyte used in the oil-in-water cosmetic of the present invention (hereinafter referred to as “the cosmetic of the present invention”) is not particularly limited, and examples thereof include a component having a whitening action and a component having a moisturizing action. It is done.

  Examples of components having a whitening action include ascorbic acid glucoside such as ascorbic acid and ascorbic acid-2-glucoside and fatty acid esters thereof, ascorbic acid phosphate sodium salt, ascorbic acid phosphate magnesium salt, and tocopheryl ascorbyl phosphate. Ascorbic acid phosphoric acid ester and its fatty acid ester, 3-O-ethyl ascorbic acid, ascorbic acid methyl ether, ascorbic acid ethyl ether, ascorbic acid cetyl ether and other ascorbic acid alkyl ethers, ascorbic acid palmitic acid ester, ascorbic acid tetra Hydroquinone glycosides such as ascorbic acid fatty acid esters such as isopalmitic acid ester, ascorbic acid sulfate ester, arbutin and α-arbutin, and the like Ester ethers, tranexamic acid, kojic acid, ellagic acid and derivatives thereof, ferulic acid and its derivatives.

  Examples of components having a moisturizing action include metal salts of organic compounds such as amino acid salts and lactates, metal salts such as potassium, sodium, magnesium and calcium, inorganic salts such as sodium chloride and magnesium chloride, and hydroxyethylurea of urea derivatives. Etc.

  Among these electrolytes, a component having a whitening effect is preferable, and among them, a salt-type whitening component is preferable, and arbutin, ascorbyl glucoside, magnesium ascorbyl phosphate, tranexamic acid, and 3-O-ethylascorbic acid are more preferable. Ascorbyl glucoside, ascorbic acid phosphate magnesium, and 3-O-ethylascorbic acid are particularly preferable. These components (A) can use 1 or more types.

  The content of the component (A) in the cosmetic of the present invention is not particularly limited, but for the purpose of obtaining stability and usability, for example, the lower limit is preferably 0.01% by mass or more, and 0.1% by mass or more. More preferably, it is more preferably 1% by mass or more, and the upper limit is preferably 10% by mass or less, more preferably 5% by mass or less, and further preferably 3% by mass or less. The specific range is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and still more preferably 1 to 3% by mass.

  Although the component (B) hydrophilic surfactant used for this invention cosmetics is not specifically limited, For example, polyglycerol fatty acid ester etc. are mentioned. Specific examples of polyglyceryl fatty acid esters include polyglyceryl stearate-2, 3, 4, 5, 6, 8, 10, disglyceryl-6, 10, polyglyceryl-2 tristearate, deca Polyglyceryl stearate-10, polyglyceryl isostearate 3, 3, 4, 5, 6, 8, 10, diisostearate polyglyceryl-2 (diglyceryl diisostearate), 3, 10, triisostearin Acid polyglyceryl-2, tetraisostearic acid polyglyceryl-2, decaisostearic acid polyglyceryl-10, oleic acid polyglyceryl-2, ibid. 3, ibid. 5, ibid. 6, ibid. 8, ibid. 10, dioleic acid polyglyceryl-6, trio Polyglyceryl oleate-2, dekaoleate poly Examples include lysyl-10, diglyceryl diisostearate, polyglyceryl tetraisostearate, polyglyceryl-10 nonaisostearate, deca (erucic acid / isostearic acid / ricinoleic acid) polyglyceryl-8, (hexyldecanoic acid / sebacic acid) diglyceryl oligoester and the like. It is done. One or more of these components (B) can be used.

  Although content of the component (B) in this invention cosmetics is not specifically limited, For example, 0.01 mass% or more is preferable for a minimum, 0.1 mass% or more is more preferable, and an upper limit is 10 mass% or less. Preferably, 4 mass% or less is more preferable. The specific range is preferably 0.01 to 10% by mass, and more preferably 0.1 to 4% by mass.

  The component (C) lipophilic surfactant used in the cosmetic of the present invention is not particularly limited, and examples thereof include fatty acid glycerin esters. Specific fatty acid glycerin esters include glyceryl stearate, glyceryl isostearate, glyceryl palmitate, glyceryl myristate, glyceryl oleate, glyceryl coconut oil fatty acid, mono-cotton oil fatty acid glycerin, glyceryl monoerucate, glyceryl sesquioleate, α, α′-oleic acid pyroglutamate glycerin, glycerin fatty acid partial esters such as monostearic acid glycerin malic acid, ethylene glycol monofatty acid esters such as ethylene glycol monostearate; propylene glycol monofatty acid esters such as propylene glycol monostearate; penta Erythritol partial fatty acid ester; sorbitol partial fatty acid ester; maltitol partial fatty acid ester; maltitol ether; Sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexylate, tetra-2-ethylhexyl Sorbitan fatty acid esters such as diglycerol sorbitan acid; Sucrose fatty acid esters, methyl glucoside fatty acid esters, sugar derivative partial esters such as undecylenic acid trehalose; alkyl glucosides such as caprylyl glucoside; alkyl polyglycosides; polyoxyethylene distearate, poly Polyoxyethylene fats such as tylene glycol diisostearate, polyoxyethylene monooleate, and polyoxyethylene dioleate Polyesters such as acid mono- and diesters; polyoxyethylene propylene glycol fatty acid esters; polyoxyethylene glycerol monostearate, polyoxyethylene glycerol monoisostearate, polyoxyethylene glycerol triisostearate, and other polyoxyethylene monooleates Oxyethylene glycerin fatty acid ester; polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan fatty acid ester; polyoxyethylene sorbitol mono Laurate, polyoxyethylene sorbitol monooleate, polyoxyethylene sorbitol pentaolee Polyoxyethylene sorbitol fatty acid ester such as polyoxyethylene sorbitol monostearate; polyoxyethylene methyl glucoside fatty acid ester; polyoxyethylene alkyl ether fatty acid ester; polyoxyethylene animal and vegetable oils such as polyoxyethylene sorbitol beeswax; isostearyl Examples thereof include alkyl glyceryl ethers such as glyceryl ether, chimyl alcohol, ceralkyl alcohol, and batyl alcohol. One or more of these components (C) can be used.

  Although content of the component (C) in this invention cosmetics is not specifically limited, For example, 0.01 mass% or more is preferable for a minimum, 0.1 mass% or more is more preferable, and an upper limit is 5 mass% or less. Preferably, 3 mass% or less is more preferable. The specific range is preferably 0.01 to 5% by mass, and more preferably 0.1 to 3% by mass.

  The component (D) higher alcohol used in the cosmetic composition of the present invention is not particularly limited. For example, stearyl alcohol, behenyl alcohol, cetostearyl alcohol, cetanol, myristyl alcohol, oleyl alcohol, lauryl alcohol, aralkyl alcohol, jojoba alcohol, Kimi Examples include alcohol, ceralkyl alcohol, batyl alcohol, hexyl decanol, and isostearyl alcohol. These components (D) can use 1 or more types.

  The content of (D) in the cosmetic of the present invention is not particularly limited. For example, the lower limit is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and the upper limit is preferably 10% by mass or less. 5 mass% or less is more preferable. The specific range is preferably 0.01 to 10% by mass, and more preferably 0.1 to 5% by mass.

  In addition, in this invention cosmetics, the commercial item which combined the said component (B)-(D) can also be utilized. Examples of such commercially available products include PolyAquol 2W (manufactured by innovacos: polyglyceryl-2 stearate (40 to 45% by mass), glyceryl stearate (25 to 30% by mass), stearyl alcohol (20 to 25% by mass)). Etc.

  The cosmetic of the present invention contains the components (A) to (D) and has a pH of 3 to 7. The pH may be adjusted using, for example, a citrate buffer solution or a phosphate buffer solution.

  The liquid oil used as the base material of the cosmetic of the present invention is not particularly limited. For example, animal oils, vegetable oils, synthetic oils and the like commonly used in cosmetics may be used, regardless of properties such as non-volatile oils and volatile oils. Examples include hydrocarbons, fats and oils, ester oils, fatty acids, fluorine-based oils, organic ultraviolet absorbers, and the like. Specifically, hydrocarbons such as liquid paraffin, squalane, polyisobutene, polybutene, oils such as olive oil, castor oil, macadamian nut oil, jojoba oil, glyceryl trioctanoate, polyglyceryl diisostearate, diglyceryl triisostearate, Glyceryl tribehenate, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, pentaerythritol ester of dioctanoate, neopentyl glycol dioctanoate, cholesterol fatty acid ester, phytosterol fatty acid ester, triglyceride, diacid malate Esters such as isostearyl, fatty acids such as isostearic acid and oleic acid, perfluorodecane, perfluorooctane, perfluoropoly Fluorine-based oil such as ether, hexyl methoxy cinnamate ethyl, octocrylene, hexyl salicylate ethyl, homosalate, organic ultraviolet absorbers such as polysilicone-15 and the like. One or more of these liquid oils can be used.

  Although content of the liquid oil in this invention cosmetics is not specifically limited, For example, a minimum is 0.1 mass% and an upper limit is 40.0 mass%. The specific range is preferably 0.5 to 30.0% by mass, and more preferably 1.0 to 20.0% by mass.

  The cosmetic composition of the present invention preferably further contains component (E) liquid silicone oil in order to suppress whitening that occurs depending on the components to be blended. The liquid silicone oil used in the cosmetic of the present invention is not particularly limited. For example, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, trimethylsiloxysilicic acid, high polymerization degree methylphenyl Polysiloxane, crosslinked organopolysiloxane, crosslinked polyether-modified methylpolysiloxane, methacryl-modified organopolysiloxane, stearyl-modified organopolysiloxane, oleyl-modified organopolysiloxane, behenyl-modified organopolysiloxane, high degree of polymerization dimethylpolysiloxane, alkoxy Examples thereof include modified organopolysiloxane and fluorine-modified organopolysiloxane. One or more kinds of these liquid silicone oils can be used.

  Although content of the component (E) in this invention cosmetics is not specifically limited, For example, a minimum is 0.01 mass% and an upper limit is 20.0 mass%. As a specific range, Preferably it is 0.05-15.0 mass%, More preferably, it is 0.1-10.0 mass%.

  Moreover, in order to stabilize the emulsification of the components (B) to (D) and the liquid oil, the cosmetic of the present invention preferably further contains a component (F) glycol. The glycols used in the cosmetic composition of the present invention are not particularly limited. For example, 1,3-butylene glycol, glycerin, diglycerin, polyglycerin, dipropylene glycol, 1,3-propanediol, propylene glycol, 1,2- Pentanediol, 1,2-hexanediol, 1,2-octanediol, 3-methyl-1,3-butanediol, 2-methyl-1,3-propanediol, trimethylolpropane, pentaerythritol, hexylene glycol, Examples include diethylene glycol, polyethylene glycol, polypropylene glycol, and ethylene glycol / propylene glycol copolymer. One or more of these glycols can be used.

  Although content of the component (F) in this invention cosmetics is not specifically limited, For example, a minimum is 0.1 mass% or more, 1 mass% or more is more preferable, 3 mass% or more is further more preferable, and an upper limit is 50 mass% or less is preferable, 30 mass% or less is more preferable, and 20 mass% or less is more preferable. As a specific range, it is preferably 0.1 to 50% by mass, more preferably 1 to 30% by mass, and further preferably 3 to 20% by mass.

  In the cosmetics of the present invention, metal oils that are difficult to be blended with normal oil-in-water cosmetics can also be contained. Although a metal oxide is not specifically limited, For example, a titanium oxide etc. are mentioned. One or more of these metal oxides can be used. Further, the metal oxide may be subjected to a treatment such as silica treatment or silicone treatment.

  Although content of the metal oxide in this cosmetics is not specifically limited, For example, a minimum is 0.01 mass% and an upper limit is 20.0 mass%. The specific range is preferably 0.1 to 15.0% by mass, and more preferably 0.5 to 10.0% by mass.

  In addition, ethanol, preservatives, fragrances, plant extracts, and the like can be blended with the cosmetic of the present invention as necessary. The cosmetic composition of the present invention has a high viscosity, so that it is not necessary to actively use a thickener such as a water-soluble polymer that decreases the feeling of use when added. A molecule may be used.

  The cosmetic composition of the present invention described above is excellent in storage stability and usability even though it contains an electrolyte. Therefore, the cosmetics of the present invention can be used for skin care cosmetics such as milky lotion, cream and beauty liquid, sun care cosmetics such as sunscreen, makeup cosmetics such as an emulsified foundation, and the like.

  The cosmetics of the present invention can be prepared by a known method of oil-in-water cosmetics, and preferred preparation methods include, for example, components (B), (C), (D) (component (F) if necessary) Is heated to 70 to 80 ° C. and uniformly dissolved, and then liquid oil heated to 70 to 80 ° C. (added with component (E) if necessary) is added and mixed to 70 to 80 ° C. A method may be mentioned in which a warmed aqueous phase is added and emulsified and cooled, and then other components including the component (A) are added and mixed.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these Examples at all.

Example 1: Whitening cream (3-O-ethylascorbic acid)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 6.00
4). Neosolute-MCT (Nippon Seika) * 2 10.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Purified water 54.45
9. Phenoxyethanol 0.30
10. Purified water 4.75
11. VC ethyl (Nippon Seika) * 3 1.00
12 Citric acid 0.25
13. Na citrate 0.15
14 Pentate acid 5Na 0.10

(* 1): Mixed raw material of polyglyceryl-2 stearate, glyceryl stearate and stearyl alcohol (* 2): Tri (caprylic acid / capric acid) glyceryl (* 3): 3-O-ethylascorbic acid

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-7 are heated and mixed uniformly (70-80 ° C.)
(3) Warm component 8 (70-80 ° C.)
(4) Add (2) to (1) and mix uniformly, then add (3) and emulsify (70-80 ° C.)
(5) Cool (4), add 9 and ingredients 10 to 14 that have been uniformly dissolved in advance and mix uniformly

Comparative Example 1: Whitening cream (3-O-ethylascorbic acid)
(Component) Blending amount (% by mass)
1. Sorbitan stearate, palm fatty acid sucrose * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 6.00
4). Neosolute-MCT (Nippon Seika) * 2 10.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Cetostearyl alcohol 1.00
9. Purified water 53.35
10. Xanthan gum 0.10
11. Phenoxyethanol 0.30
12 Purified water 4.75
13. VC ethyl (Nippon Seika) * 3 1.00
14 Citric acid 0.25
15. Na citrate 0.15
16. Pentate acid 5Na 0.10

(* 1): Mixed raw material of polyglyceryl-2 stearate, glyceryl stearate and stearyl alcohol (* 2): Tri (caprylic acid / capric acid) glyceryl (* 3): 3-O-ethylascorbic acid

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-8 are heated and uniformly mixed (70-80 ° C.)
(3) Components 9 and 10 are heated and uniformly dissolved (70 to 80 ° C.)
(4) Add (2) to (1) and mix uniformly, then add (3) and emulsify (70-80 ° C.)
(5) Cool (4), add 11 and components 12-16, which have been uniformly dissolved in advance, and mix uniformly

Comparative Example 2: Whitening cream (3-O-ethylascorbic acid)
(Component) Blending amount (% by mass)
1. Steareth-21 2.00
2. Steareth-2 3.00
3. PPG-15 stearyl 4.00
4). Neosolute-MCT (Nippon Seika) * 1 10.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Cetostearyl alcohol 1.00
9. Purified water 49.15
10.1,3-butylene glycol 8.00
11. Glycerin 6.00
12 Xanthan gum 0.30
13. Phenoxyethanol 0.30
14 Purified water 4.75
15. VC ethyl (Nippon Seika) * 2 1.00
16. Citric acid 0.25
17. Na citrate 0.15
18. Pentate acid 5Na 0.10

(* 1): Tri (caprylic acid / capric acid) glyceryl (* 2): 3-O-ethylascorbic acid

(Production method)
(1) Components 1 to 8 are heated and dissolved (70 to 80 ° C.)
(2) Heat components 9-12 and mix uniformly (70-80 ° C)
(3) Add (2) to (1) to emulsify (70-80 ° C.)
(4) Cool (3), add 13 and ingredients 14-18, which have been uniformly dissolved in advance, and mix uniformly

Comparative Example 3: Whitening cream (3-O-ethylascorbic acid)
(Component) Blending amount (% by mass)
1. Olive oil fatty acid cetearyl, olive oil fatty acid sorbitan 4.00
2. Cetyl palmitate, sorbitan palmitate, olive oil fatty acid sorbitan
2.00
3. Neosolute-MCT (Nippon Seika) * 1 10.00
4). Olive Squalane 4.50
5. Meadow foam oil 4.50
6). Dimethicone 1.00
7). Cetostearyl alcohol 1.00
8). Purified water 52.45
9.1,3-butylene glycol 8.00
10. Glycerin 6.00
11. Phenoxyethanol 0.30
12 Purified water 4.75
13. VC ethyl (Nippon Seika) * 2 1.00
14 Citric acid 0.25
15. Na citrate 0.15
16. Pentate acid 5Na 0.10

(* 1): Tri (caprylic acid / capric acid) glyceryl (* 2): 3-O-ethylascorbic acid

(Production method)
(1) Components 1-7 are heated and dissolved (70-80 ° C.)
(2) Ingredients 8 to 10 are heated and uniformly mixed (70 to 80 ° C.)
(3) Add (2) to (1) to emulsify (70-80 ° C.)
(4) Cool (3), add 11 and ingredients 12-16 that have been uniformly dissolved in advance and mix uniformly

Test Example 1: Evaluation of Usability and Stability For the whitening cream of Example 1 and Comparative Examples 1 to 3, the initial state, particle size, viscosity, pH, state after storage for 1 month at 50 ° C., and feeling of use It investigated with the following evaluation criteria. These results are shown in Table 1.

<Initial state>
About each sample, the state was observed visually and it determined in accordance with the following two steps criteria.
(2 step criteria)
○: There is no separation, creaming, or gelation, and the emulsified state is maintained.

<Particle size>
The particle size and average particle size of the emulsified particles of each sample were observed by microscopic observation.

<Viscosity>
The viscosity of each sample was measured with a BM viscometer.

<PH>
The pH of each sample was measured with a pH meter.

<State after storage at 50 ° C for one month>
About each sample after 1-month storage at 50 degreeC, the state was observed visually and it determined in accordance with the following 3 step criteria.
(3-step criteria)
○: Separation, creaming or gelation is not observed in 1 month. Δ: Separation, creaming or gelation is observed in 1 month. ×: Separation, creaming or gelation is observed within 1 week.

<Usage>
Each sample was used by 10 evaluation panels, and from the viewpoint of smoothness and non-stickiness, a score was comprehensively determined based on the following five-level absolute evaluation criteria, and the average value of the scores of all panels was determined and determined. .
(5-level absolute evaluation criteria)
(Score): (Evaluation result)
5 points: very good 4 points: good 3 points: normal 2 points: bad 1 point: very bad

  In addition, in any of the said Example 1 and Comparative Examples 1-3, when it does not mix | blend the component which has a whitening effect, it is a composition which can ensure the storage stability of 50 degreeC one month.

  From the above results, hydrophilic surfactants, lipophilic surfactants, and higher alcohols are essential for stably blending electrolytes such as 3-O-ethylascorbic acid into oil-in-water cosmetics. I understood.

Example 2: Whitening cream (3-O-ethylascorbic acid)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 8.50
4). Pentaerythrityl tetraethylhexanoate 9.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Neosole-Aqualio (Nihon Seika) * 2 1.00
9. Purified water 49.80
10. Purified water 5.00
11. Pentate acid 5Na 0.10
12 Citric acid 0.20
13. VC ethyl (Nippon Seika) * 3 1.00
14 Na citrate 0.10
15. Phenoxyethanol 0.30
16. Ethanol 2.00

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Bisethoxydiglycol cyclohexane-1,4-dicarboxylate (* 3): 3-O-ethylascorbic acid

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-8 are heated and uniformly mixed (70-80 ° C.)
(3) Warm component 9 (70-80 ° C.)
(4) Add (2) to (1) and mix uniformly, then add (3) and emulsify (70-80 ° C.)
(5) Cool (4), add components 10-14 previously uniformly dissolved, and mix uniformly (6) Add components 15, 16 to (5) and mix uniformly

(Evaluation)
The whitening cream of Example 2 (pH = 4.10, viscosity = 34,000 mPa · s (rotor No. 4, 6 rotations, 60 seconds), particle size = 1 to 4 (average 2.5) μm), 50 The state after storage at 1 ° C. for 1 month was stable and not separated. Further, when the whitening cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 3: Whitening cream (ascorbyl glucoside (AA2G))
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 8.50
4). Pentaerythrityl tetraethylhexanoate 9.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Neosole-Aqualio (Nihon Seika) * 2 1.00
9. Behenyl alcohol 1.00
10. Purified water 44.365
11. Xanthan gum 0.10
12 Purified water 10.00
13. Citric acid 0.01
14 AA2G * 3 2.00
15. Na citrate 0.09
16. Hydroxide K 0.385
17. EDTA-2Na 0.05
18. Phenoxyethanol 0.30
19. Ethylhexylglycerin 0.20

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (* 3): Alcorbyl glucoside

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-9 are heated and uniformly mixed (70-80 ° C.)
(3) Components 10 and 11 are heated and uniformly dissolved (70 to 80 ° C.)
(4) After (2) is added to (1) and mixed uniformly, (3) is added and emulsified (5) (4) is cooled, and components 12 to 17 previously dissolved uniformly are added. Add and mix uniformly (6) Add components 18 and 19 to (5) and mix uniformly

(Evaluation)
The whitening cream of Example 3 (pH = 5.70, viscosity = 49,500 mPa · s (rotor No. 4, 6 rotations, 60 seconds), particle size = 1-5 (average 3) μm) at 50 ° C. The state after storage for 1 month was stable and not separated. Further, when the whitening cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 4: Whitening cream (tranexamic acid)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 8.50
4). Pentaerythrityl tetraethylhexanoate 9.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Neosole-Aqualio (Nihon Seika) * 2 1.00
9. Purified water 37.90
10. Purified water 18.00
11. Tranexamic acid (Nippon Seika) * 3 2.00
12 Pyrosulfite Na 0.05
13. EDTA-2Na 0.05
14 Phenoxyethanol 0.30
15. Ethylhexylglycerin 0.20

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): bisethoxydiglycol cyclohexane-1,4-dicarboxylate (* 3): tranexamic acid

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-8 are heated and uniformly mixed (70-80 ° C.)
(3) Warm component 9 (70-80 ° C.)
(4) After (2) is added to (1) and mixed uniformly, (3) is added and emulsified (5) (4) is cooled, and components 10 to 13 previously dissolved uniformly are added. Add and mix uniformly (6) Add ingredients 14 and 15 to (5) and mix evenly

(Evaluation)
The whitening cream of Example 4 (pH = 6.50, viscosity = 18,500 mPa · s (rotor No. 4, 6 rotations, 60 seconds)) after storage at 50 ° C. for 1 month is stable. There was no separation. Further, when the whitening cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 5: Whitening cream (Arbutin)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 8.50
4). Pentaerythrityl tetraethylhexanoate 9.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Neosole-Aqualio (Nihon Seika) * 2 1.00
9. Purified water 37.90
10. Purified water 17.00
11. Arbutin (Nippon Seika) * 3 3.00
12 Anhydrous sodium sulfite 0.05
13. EDTA-2Na 0.05
14 Phenoxyethanol 0.30
15. Ethylhexylglycerin 0.20

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (* 3): Arbutin

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-8 are heated and uniformly mixed (70-80 ° C.)
(3) Warm component 9 (70-80 ° C.)
(4) After (2) is added to (1) and mixed uniformly, (3) is added and emulsified (5) (4) is cooled, and components 10 to 13 previously dissolved uniformly are added. Add and mix uniformly (6) Add ingredients 14 and 15 to (5) and mix evenly

(Evaluation)
The whitening cream of Example 5 (pH = 6.80, viscosity: 20,500 mPa · s (rotor No. 4, 6 rotations, 60 seconds), particle size: 1 to 4 (average 3) μm) at 50 ° C. The state after storage for 1 month was stable and not separated. Further, when the whitening cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 6: Whitening cream (ascorbyl magnesium phosphate)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 8.50
4). Pentaerythrityl tetraethylhexanoate 9.00
5. Olive Squalane 4.50
6). Meadow foam oil 4.50
7). Dimethicone 1.00
8). Neosole-Aqualio (Nihon Seika) * 2 1.00
9. Behenyl alcohol 2.00
10. Purified water 42.64
11. Xanthan gum 0.10
12 Purified water 10.00
13. Citric acid 0.01
14 Ascorbyl magnesium phosphate * 3 3.00
15. Na citrate 0.20
16. EDTA-2Na 0.05
17. Phenoxyethanol 0.30
18. Ethylhexylglycerin 0.20

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Bisethoxydiglycol cyclohexane-1,4-dicarboxylate (* 3): L-ascorbyl magnesium phosphate

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-9 are heated and uniformly mixed (70-80 ° C.)
(3) Components 10 and 11 are heated and uniformly dissolved (70 to 80 ° C.)
(4) After (2) is added to (1) and mixed uniformly, (3) is added and emulsified (5) (4) is cooled, and components 12 to 16 previously dissolved uniformly are added. Add and mix uniformly (6) Add ingredients 17 and 18 to (5) and mix evenly

(Evaluation)
The whitening cream of Example 3 (pH = 6.80, viscosity = 35,500 mPa · s (rotor No. 4, 6 rotations, 60 seconds), particle size = 1-7 (average 3) μm) at 50 ° C. The state after storage for 1 month was stable and not separated. Further, when the whitening cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 7: Sunscreen cream (AA2G + titanium oxide)
(Component) Blending amount (% by mass)
1. PolyAquol 2W (innovacos) * 1 5.00
2. 1,3-butylene glycol 8.00
3. Glycerin 2.00
4). Neosolute-EHS (Nippon Seika) * 2 5.00
5. Titanium oxide oil dispersion (Sakai Chemical Industry) * 3 15.00
6). Dimethicone 1.00
7). Behenyl alcohol 1.00
8). Purified water 47.865
9. Xanthan gum 0.10
10. Purified water 10.00
11. Citric acid 0.01
12 AA2G * 4 2.00
13. Na citrate 0.09
14 Hydroxide K 0.385
15. EDTA-2Na 0.05
16. Phenoxyethanol 0.30
17. Ethylhexylglycerin 0.20
18. Tremoist-SL (Nippon Seika) * 5 2.00

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): diethylhexyl sebacate (* 3): DIS-OP-10A
(* 4): Ascorbic acid glucoside (* 5): White jellyfish polysaccharide 1% solution

(Production method)
(1) Components 1 to 3 are heated and dissolved (70 to 80 ° C.)
(2) Ingredients 4-7 are heated and mixed uniformly (70-80 ° C.)
(3) Components 8 and 9 are heated and uniformly dissolved (70 to 80 ° C.)
(4) After (2) is added to (1) and mixed uniformly, (3) is added and emulsified (5) (4) is cooled and components 10 to 15 previously dissolved uniformly are added. Add and mix uniformly (6) Add ingredients 16, 17 and 18 to (5) and mix uniformly

(Evaluation)
The sunscreen cream of Example 7 (pH = 5.70, viscosity = 51,000 mPa · s (rotor No. 4, 6 revolutions, 60 seconds), particle size = 1-7 (average 3) μm) at 50 ° C. The state after storage for 1 month was stable and not separated. Moreover, when the sunscreen cream after storage was applied to the skin, the feeling of use was excellent and there was no whitening or the like.

Example 8: Whitening emulsion (3-O-ethylascorbic acid)
Component Blending amount (% by weight)
-----------------------------------
Part A PolyAquol-2W (innovacos) * 1 2.5
IOTG (Nihon Seika) * 2 3.0
LUSPLAN SR-DM4 (Nippon Seika) * 3 0.5
Dimethicone (100CS) 5.0
Phenyltrimethicone 3.0
Squalane 10.5
Part B VC ethyl (Nippon Seika) * 4 1.0
Neosolute-AquaS (Nippon Seika) * 5 1.0
Penteto acid 5Na 0.1
Citric acid 0.1
Na citrate 0.1
Ethanol 3.0
Phenoxyethanol 0.3
Tremoist-TP (Nippon Seika) * 6 0.03
Purified water 10.0
Part C Polyquaternium-51 1.0
Glycerin 3.0
Diglycerin 1.0
BG 7.0
Purified water Total amount of 100 -----------------------------------

(* 1): Raw material of polyglyceryl-2 stearate, glyceryl stearate and stearyl alcohol (* 2): Triethylhexanoin (eicosandioic acid / tetradecanedioic acid) polyglyceryl-10, glycerin (* 3): Dimerlinol Acid dimer linoleyl, tri (caprylic acid / capric acid) glyceryl (* 4): 3-O-ethylascorbic acid (* 5): (eicosanedioic acid / tetradecanedioic acid) polyglyceryl-10, glycerin (* 6) : White jellyfish polysaccharide

(Production method)
Part A and part C are mixed, heated to about 80 ° C., and dissolved and dispersed. Part B is mixed to obtain a viscous liquid. While stirring Part B with a homomixer, Part A was added and emulsified. C. Part C was added at about 50.degree. C., and the mixture was stirred and cooled to about 40.degree.

(Evaluation)
The emulsion of Example 8 (pH = 4.4) moisturizes the skin, keeps it fresh, and prevents wrinkles due to rough skin and dryness.

Example 9: Whitening cream (tranexamic acid)
Component Blending amount (% by weight)
------------------------------------
Part A PolyAquol-2W (innovacos) * 1 3.5
Plandool-MAS (Nippon Seika) * 2 6.0
Plandool-LG2 (Nippon Seika) * 3 1.0
Squalane 10.0
Isocetyl myristate 4.0
Cetyl palmitate 1.5
Batyl isostearate 1.5
Hardened oil 3.0
Polyethylene glycol distearate 0.8
Cetyl dimethicone copolyol 0.4
Phenyltrimethicone 1.5
δ-tocopherol 0.2
Part B Glycerin 6.0
Phytocompo-PP (Nippon Seika) * 4 0.5
Part C Tranexamic acid (Nippon Seika) 2.0
Citric acid 0.1
Na citrate 0.08
EDTA-2Na 0.05
Neosolu-Aculio (Nippon Seika) * 5 0.5
VC ethyl (Nippon Seika) * 6 0.2
Phytic acid 0.05
Purified water 20.0
Phenoxyethanol 0.5
Part D Betaine 0.5
Trehalose 0.1
BG 3.0
Purified water Total amount of 100 ------------------------------------

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Macadamia nut oil fatty acid phytosteryl (* 3): Lauroyl glutamate di (phytosteryl / octyldodecyl)
(* 4): Hydrogenated lecithin, phytosterols
(* 5): Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (* 6): 3-O-ethylascorbic acid

(Production method)
Part A is heated to about 80 ° C. and dispersed uniformly. Part B is heated to about 70 ° C. and dispersed uniformly. C part and D part are mixed and made uniform. Add part A to part B, gradually add part D heated to about 70 ° C. while stirring using a homomixer at about 70 ° C., mix uniformly after emulsification, and cool to about 40 ° C. Add part C after cooling to make uniform.

(Evaluation)
The cream of Example 9 (pH = 5.8) is excellent in moisturizing feeling, has an effect of keeping the skin soft and fresh, smooth and moist, and the skin after use is not sticky and smooth. It was.

Example 10: Whitening cream (Arbutin)
Component Blending amount (% by weight)
---------------------------------------
Part A PolyAquol-2W (innovacos) * 1 5.0
LUSPLAN PI-DA) Nippon Seika) * 2 1.0
Jojoba oil 5.5
NS-CIO (Nippon Seika) * 3 9.0
Cyclopentasiloxane 3.0
Dimethicone (300cs) 3.0
Plandool-LG2 (Nippon Seika) * 4 1.0
Plandool-S (Nippon Seika) * 5 1.0
Argania spinosa kernel oil 0.5
Part B BG 3.0
Glycerin 5.0
Ethanol 2.0
1,2-hexanediol 1.0
Arbutin 3.0
Etidronic acid 0.1
Hydroxide Na 0.1
Carbomer 0.1
Purified water Total amount of 100 parts C VC ethyl (Nippon Seika) * 6 0.2
Purified water 10.0
------------------------------------

(* 1): Mixed raw material of polyglyceryl stearate-2, glyceryl stearate and stearyl alcohol (* 2): Dimer dilinoleic acid di (isostearyl / phytosteryl)
(* 3): Cetyl ethylhexanoate (
(* 4): Dilauroyl glutamate (phytosteryl / octyldodecyl)
(* 5): Dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl)
(* 6): 3-O-ethylascorbic acid

(Production method)
Part A is heated to about 70 ° C. and dispersed uniformly. Part B is heated to about 80 ° C. and dissolved uniformly. Mix part C and make uniform. Add Part B to Part A and stir and emulsify using a homomixer at about 80 ° C. Cool to about 50 ° C. and add part C to homogenize.

(Evaluation)
The cream of Example 10 (pH = 6.3) is excellent in moisturizing feeling, has the effect of keeping the skin soft and fresh, smooth and moist, and the skin after use is non-sticky and smooth. It was.

The oil-in-water cosmetic of the present invention can be used for skin care cosmetics, sun care cosmetics, makeup cosmetics, etc.
that's all

Claims (9)

The following components (A) to (D),
(A) Electrolyte
(B) Hydrophilic surfactant (C) Lipophilic surfactant (D) An oil-in-water cosmetic comprising a higher alcohol and having a pH of 3 to 7.   The oil-in-water cosmetic according to claim 1, wherein the electrolyte is a component having a whitening effect.   The oil-in-water cosmetic according to claim 2, wherein the whitening component is a salt-type whitening component.   The oil-in-water cosmetic according to claim 3, wherein the salt-type whitening component is at least one selected from arbutin, ascorbyl glucoside, magnesium ascorbate phosphate, tranexamic acid and 3-O-ethylascorbic acid.   The oil-in-water cosmetic according to any one of claims 1 to 4, further comprising a metal oxide.   The oil-in-water cosmetic according to claim 5, wherein the metal oxide is titanium oxide. Furthermore, component (E),
(E) Oil-in-water cosmetics in any one of Claims 1-6 containing liquid silicone oil. Furthermore, component (F),
(F) Oil-in-water cosmetics in any one of Claims 1-7 containing glycols.   The oil-in-water cosmetic according to any one of claims 1 to 8, wherein component (B) is polyglyceryl stearate-2, component (C) is glyceryl stearate, and component (D) is stearyl alcohol.