KR20220161264A - Oil-in-water emulsified cosmetics - Google Patents

Abstract

To obtain an oil-in-water cosmetic that can produce a sense of effect that instantly brightens the skin and has an excellent glossy finish. In the present invention, the following components (A) to (D): (A) an anionic surfactant (B) an emulsion having a water holding capacity of 140% or more with respect to its own weight (C) phenyl-modified An oil-in-water emulsified cosmetic composition containing a silicon (D) higher alcohol having 12 to 22 carbon atoms can be provided.

Description

Oil-in-water emulsified cosmetics

The present invention relates to oil-in-water emulsified cosmetics.

In recent years, the purpose of using skin care cosmetics by women has diversified, and cosmetics for the purpose of effects such as whitening, brightening, reduction of spots and wrinkles, and elasticity are widely used as well as cosmetics for moisturizing. are being brought in Among them, whitening and brightening are effects required regardless of age, and many products containing various whitening active ingredients have been proposed. Originally, the whitening effect of the active ingredient is gradually manifested by long-term continuous use of the cosmetic containing the whitening active ingredient, and it is difficult to immediately feel the whitening effect immediately after applying the cosmetic.

Therefore, in order to produce an effect that instantly brightens the skin instead of an immediate whitening effect, whitening or brightness is imparted to the cosmetic film by white pigments or powders such as titanium oxide or zinc oxide. There is a way to do it.

Japanese Patent Publication No. 2005-526781

In the present invention, the main problem is to provide an oil-in-water emulsified cosmetic that can immediately produce an effect that makes the skin look bright and has an excellent glossy finish.

By the way, as a skin care cosmetic, what is called vanishing cream has been known for a long time, and vanishing cream, as the name suggests, is an oil-in-water oil that looks like "vanish" (disappears), and when applied to the skin, it initially turns white and gives a moderate frictional resistance. , permeates so as to disappear, and is characterized by a clean and matte finish (see Patent Document 1, for example). Most of the vanishing creams contain higher fatty acids and higher alcohols, but when a large amount of these solid surfactants (auxiliaries) are blended, the interface of the oil droplets hardens and the stability of the emulsion improves, but it does not varnish (disappear). Therefore, there was a tendency that the skin became opaque, and the glossiness or permeability of the skin was lost, leaving a hard filmy feeling.

As a result of repeated earnest research to solve the above problems, the present inventors paid attention to the cloudiness at the time of application of vanishing cream, and as a result of further earnest research, an anionic surfactant, a high-grade carbon number of 12 to 22 Discovered that the above problems can be solved by making an oil-in-water emulsified cosmetic comprising at least four components of alcohol, an oil agent having a water retention capacity of 140% or more, and phenyl-modified silicone in combination. Thus, the present invention was completed. In addition, the present inventors have also discovered that the oil-in-water emulsified cosmetic of the present invention can produce an effect that instantly brightens the skin even without including a white pigment. In addition, as a more preferable aspect, the present inventors have found that an oil-in-water emulsified cosmetic that produces an effect that instantly brightens the skin and has an excellent glossy finish with a soft cosmetic film can also be provided.

That is, the present invention comprises the following components (A) to (D):

(A) anionic surfactant

(B) Emulsion having a catch power of 140% or more against its own weight

(C) phenyl modified silicone

(D) a higher alcohol having 12 to 22 carbon atoms

It relates to an oil-in-water emulsified cosmetic containing a.

The said component (A) may contain 1 type(s) or 2 or more types chosen from fatty acid salt, N-acylmethyltaurine or its salt, N-acylamino acid, or its salt.

The above component (B) is phytosteryl oleate, macadamia nut oil fatty acid phytosteryl, N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl), hexa(12-hydroxy Stearic acid/stearic acid/rosin acid) dipentaerythrityl and cholesteryl hydroxystearate may contain one or two or more selected from the group consisting of:

The said component (C) may contain 1 type(s) or 2 or more types chosen from diphenyl dimethicone and diphenylsiloxyphenyl trimethicone.

The said component (D) may contain 1 type, or 2 or more types chosen from cetostearyl alcohol and behenyl alcohol.

As component (E), one or two or more selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids may be further contained.

The content of the component (D) may be less than 10% by mass.

The oil-in-water emulsion cosmetic of the present invention can produce an effect that instantly brightens the skin, and can also provide an oil-in-water emulsion cosmetic with an excellent glossy finish. In addition, the effect of this invention is not necessarily limited to the effect described here, Any effect described in this specification may be sufficient.

Hereinafter, preferred embodiments for carrying out the present invention will be described in detail, but the embodiments described below show examples of representative embodiments of the present invention, and therefore the scope of the present invention is not interpreted narrowly. Incidentally, in this specification, percentages are expressed by mass unless otherwise specified. In addition, the upper limit value (less than) and the lower limit value (or more) of each numerical range (-) can be arbitrarily combined as desired.

<1. Oil-in-water emulsified cosmetic of the present invention>

In the present invention, the following components (A) to (D):

(A) anionic surfactant

(B) Water-capturing emulsion having a water-capturing power of 140% or more against its own weight

(C) phenyl modified silicone

(D) a higher alcohol having 12 to 22 carbon atoms

It is possible to provide an oil-in-water emulsified cosmetic comprising, or blended with. A composition formed by further blending the component (E) brightening component with the above (A) to (D) can also be provided.

<1-1. Component (A) Anionic Surfactant>

The component (A) anionic surfactant used in the present invention is not particularly limited as long as it is usually used in cosmetics, and as the component (A) anionic surfactant, those obtained by known production methods may be used, and commercially available products may be used. You may use it.

As the component (A) anionic surfactants, for example, fats such as soap base, stearate (eg Na), laurate (eg Na), palmitate (eg Na) acid salts (preferably higher fatty acid salts); higher alkyl sulfuric acid ester salts such as Na lauryl sulfate and K lauryl sulfate; Alkyl ether sulfate ester salts, such as POE lauryl sulfate triethanolamine and POE lauryl sulfate Na; N-acyl sarcosinic acids such as lauroyl sarcosine Na; N-acylmethyltaurine such as N-myristoyl-N-methyltaurine Na, coconut oil fatty acid methyltaurine Na, and stearoylmethyltaurine Na, or higher fatty acid amide sulfonic acids or salts thereof, such as salts thereof; phosphoric acid ester salts such as POE oleyl ether phosphoric acid Na and POE stearyl ether phosphoric acid; sulfosuccinic acid salts such as di-2-ethylhexylsulfosuccinic acid Na, lauroylethanolamide polyoxyethylene sulfosuccinic acid Na, and lauryl polypropylene glycol sulfosuccinic acid Na; Alkylbenzene sulfonic acid salts, such as linear dodecylbenzenesulfonic acid Na, linear dodecylbenzenesulfonic acid triethanolamine, and linear dodecylbenzenesulfonic acid; higher fatty acid ester sulfate ester salts such as hydrogenated coconut oil fatty acid glycerol sulfate Na; acylamino acids (also referred to as N-acylamino acids) or salts thereof (for example, Na), such as acylglutamic acids or salts thereof, such as lauroylglutamic acid, stearoylglutamic acid, and myristoylglutamic acid; α-olefin sulfonates, higher fatty acid ester sulfonates, secondary alcohol sulfate ester salts, higher fatty acid alkylolamide sulfate ester salts, lauroyl monoethanolamide succinate Na, palmitoyl aspartate ditriethanolamine, caseinate sodium, and the like. have. 1 type, or 2 or more types selected from these can be used suitably.

The number of carbon atoms of the "higher fatty acid" or "alkyl" in the component (A) is not particularly limited, but is preferably 10 or more carbon atoms, more preferably 12 or more carbon atoms as a lower limit thereof, and is also a preferable upper limit thereof. It is preferably 24 or less carbon atoms, more preferably 22 or less carbon atoms, more preferably 12 to 24 carbon atoms, still more preferably 12 to 22 carbon atoms. The "higher fatty acid" or "alkyl" may be linear, branched or cyclic, preferably linear, and may be either saturated fatty acid or unsaturated fatty acid, preferably saturated fatty acid. do.

The N-acylmethyltaurine is not particularly limited, but is preferably coconut oil fatty acid methyltaurine, N-caproylmethyltaurine, N-lauroylmethyltaurine, N-myristoylmethyltaurine, N-palmitoylmethyltaurine , N-stearoylmethyltaurine, N-oleoylmethyltaurine, etc., or two or more selected from among them, among which N-stearoylmethyltaurine is more preferable.

The "acyl" of the N-acylamino acid is not particularly limited, but is preferably derived from the "fatty acid" of the "fatty acid salt" or a mixed fatty acid thereof, and is derived from a linear fatty acid or a mixed fatty acid of linear fatty acids. More preferably, the number of carbon atoms is preferably 12 to 24 carbon atoms, more preferably 12 to 22 carbon atoms.

As an acyl group in the said N-acyl amino acid, C8-C24 (preferably C12-C22) linear or branched aliphatic acyl group etc. are mentioned. As the acyl group, more specifically, for example, capryloyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, and cocoyl group, coconut oil fatty acid acyl group (acyl group derived from coconut oil fatty acid), palm fatty acid acyl groups (acyl groups derived from palm oil fatty acids);

The "amino acid" portion of the acyl amino acid is not particularly limited, but one or two or more selected from glutamic acid, aspartic acid, and the like are preferable, and among these, glutamic acid is preferable. Moreover, it is preferable that the said amino acid is an L chain.

Among the above N-acylamino acids, N-acylglutamic acid or a salt thereof is more preferred, and among these, N-stearoyl-L-glutamic acid is still more preferred.

In addition, N-acylamino acid can be obtained by a known production method, and is obtained, for example, by condensing a chloride of a higher fatty acid with an amino acid (preferably glutamic acid).

Here, the "salt" used in the present invention may be an inorganic salt such as an alkali metal salt such as sodium or potassium or an alkaline earth metal salt such as magnesium or calcium, or an amine salt such as monoethanolamine, triethanolamine, or aminomethyl propanol. It may be an organic salt, and it is substituted without being limited to the illustration.

In addition, fatty acid salts or N-acylamino acid salts may be neutralized in advance, but may also be blended using a fatty acid or N-acylamino acid and an alkali agent separately as a compounding component. These can be used 1 type or in combination of 2 or more types. The alkali agent may be a compound containing an inorganic salt or an organic salt, and examples of the compound include a hydroxide and the like, but are not limited thereto.

Among these components (A), in the present invention, from the viewpoint of excellent durability of cloudiness during application and softness of a cosmetic film, 1 selected from fatty acid salts, N-acyltaurine or salts thereof, N-acylamino acids or salts thereof, etc. A species or two or more are preferable, a fatty acid salt is more preferable, and the component (A) preferably contains one or two or more of these, and more preferably contains at least a fatty acid salt. desirable.

More specifically, from the viewpoints of opacity at the time of application, softness of the cosmetic film, and gloss of the skin, component (A) is a stearate, N-stearoylmethyltaurine or a salt thereof, N-stearoylglutamic acid or a salt thereof. 1 type or 2 or more types selected from are more preferable, and among them, a stearic acid salt is still more preferable.

The content of the component (A) in the present invention is not particularly limited, but as a suitable lower limit of the content of the component (A), the cloudiness at the time of application is better maintained and the emulsion stability is better, so the oil-in-water type Among emulsified cosmetics, it is preferably 0.3% by mass (hereinafter simply abbreviated as “%”) or more, more preferably 0.5% or more, and still more preferably 1.0% or more. In addition, since the softness of the cosmetic film is better and the glossiness of the skin is also good, the preferable upper limit of the content of component (A) is preferably 5% or less, more preferably 3.8% or less, among oil-in-water emulsified cosmetics. % or less is more preferable, 2.5% or less is still more preferable, and 2.2% or less is more preferable. As a suitable numerical range of the component (A), in the oil-in-water emulsified cosmetic, it is preferably 0.3 to 5%, more preferably 0.5 to 3%.

In addition, the content of component (A) is calculated by mass (in terms of sodium salt) assuming that component (A) is a sodium salt compound, for example, the content or mass ratio of fatty acid or fatty acid salt, It can be calculated as the mass of fatty acid Na (in terms of sodium salt).

The content of one or two or more selected from fatty acid salts, N-acylmethyltaurine or salts thereof, N-acylamino acids or salts thereof in component (A) in the present invention is not particularly limited, but oil-in-water emulsification In cosmetics, as a suitable lower limit, it is preferably 0.3% or more, more preferably 0.5% or more, still more preferably 1.0% or more, and as a suitable upper limit, preferably 5% or less, more preferably 3.8%. or less, more preferably 3.5% or less, still more preferably 3% or less, still more preferably 2.5% or less, still more preferably 2.2% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

The content of the higher fatty acid salt (preferably stearic acid salt) in component (A) in the present invention is not particularly limited, but is preferably 0.3% or more, more preferably 0.3% or more as a suitable lower limit in oil-in-water emulsified cosmetics. is 0.5% or more, more preferably 1.0% or more, and as a suitable upper limit, preferably 5% or less, more preferably 3.8% or less, still more preferably 3.5% or less, still more preferably 3% or less, more preferably 2.5% or less, more preferably 2.2% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<1-2. Component (B) Emulsion having a water holding power relative to its own weight of a predetermined level or more>

Component (B) used in the present invention is an oil agent capable of absorbing water equal to or greater than its own weight (hereinafter also referred to as "water absorbing oil agent"), from the viewpoints of better persistence of immediate cloudiness and better glossiness of the skin. In, it is an emulsion having more than a certain amount of catch power for its own weight.

The term "capturing power for its own weight" in the present specification refers to the power by which an oil agent captures water (mass) equal to or greater than its own weight. "Water retention capacity (%) with respect to the dead weight of the emulsion" is [amount of water added (mass) until water is drained from the sample / dead weight of the emulsion (mass of the original sample)] × 100% in the following test method can be calculated For example, when the amount of water captured by adding water to 1 g of the oil agent is 1.4 g, the water holding power relative to its own weight is 140% (hereinafter, the unit (%) may be omitted).

In the present invention, the value (%) of the "water trapping power with respect to its own weight" in the water trapping emulsion of component (B) can be obtained according to the following test method. For example, "a water-capturing emulsion having a water-capturing power relative to its own weight of 140% or more" is one in which the value of "water-capturing power" is 140 or more in the following test method.

<Test method (measurement method of water absorbing power of water absorbing emulsion)>

Test method: As a test method for the water holding capacity of the present invention to determine whether or not to capture water (mass) equivalent to its own weight at 50 ° C., 20 g of the emulsion (initial sample) at the start was weighed in a 200 mL beaker, heated to 50 ° C. While stirring at 3000 rpm with a despa mixer, water at 50 ° C. is gradually added, water is added until water is drained from the sample, the maximum mass of water (amount of water added) at which water is not drained is measured, and this value is Divided by the mass (20 g) of the emulsion (initial sample) and multiplied by 100, the value was calculated as "water holding capacity (%)".

Regarding the above test method, more specifically, when the water being added is visually observed as if it protrudes round and round on the stirred emulsion, "water is not drained" is changed to "water is drained" It can be judged as the timing, and the addition of water is completed at this changed timing. After completion, discard the drainage (water) floating on top of the emulsion (sample with the maximum catch). The mass of the emulsion (sample with the maximum number of catches) in the beaker in which the drained liquid (water) was discarded is measured, and this mass can be referred to as "the maximum mass of water at which no water is drained". Note that this observation is not limited to the naked eye and may be performed using an image sensor.

As the component (B) water-capturing oil agent, a water-capturing oil agent having a water-capturing power relative to its own weight is preferably a predetermined lower limit, and the water-capturing power is preferably 125% or more, more preferably 130% or more, and even more preferably 125% or more, more preferably 130% or more. It is preferably 140% or more, and the water absorbing oil of component (B) has a water catching power of a predetermined or higher level, thereby increasing the whiteness (persistence) during application of the oil-in-water emulsified cosmetic, and improving the glossiness of the skin after application. have. Further, the suitable upper limit of the catch power relative to its own weight is not particularly limited, but examples thereof include 600% or less, preferably 510% or less, more preferably 350% or less, still more preferably It is 220% or less, or 210% or less, or 170% or less. A more suitable numerical range of the water retention capacity relative to its own weight is more preferably 140 to 510%, still more preferably 140 to 350%, from the viewpoint of the persistence of white turbidity at the time of application, improvement of the glossiness of the skin, and softness of the cosmetic film, More preferably, it is 140 to 220%, More preferably, it is 140 to 170%.

Such a water absorbing emulsion having a water absorbing power for its own weight of component (B) of a certain level or higher can be any oil that can be used for general cosmetics, etc. ester compounds with components having one or two or more hydroxyl groups selected from alcohols, sterols, sugars, polyhydric alcohols, amino acids, and castor oil); available.

The above-mentioned component (B) is a water-capturing emulsion having a water-capturing power relative to its own weight of a predetermined level or more, specifically, for example, castor oil, shea butter, beef tallow, N-acylamino acid ester, glycerin fatty acid ester , dimer acid esters, and dipentaerythritol fatty acid esters. One type or two or more types selected from these can be appropriately used.

The component (B) is a water-capturing emulsion having a water-capturing power relative to its own weight of a predetermined level or more, more specifically, for example, N-lauroyl-L-glutamic acid di(phytosteryl/2-octyldodecyl), N -Lauroyl-L-glutamate dioctyldodecyl, N-lauroyl-L-glutamate (cholesteryl/octyldodecyl), N-lauroyl-L-glutamate (cholesteryl/behenyl) N-acylamino acid esters such as /octyldodecyl) and N-lauroyl-L-glutamic acid di(phytosteryl/behenyl/octyldodecyl); glycerol fatty acid esters such as hexaglycerin fatty acid ester, decaglycerin fatty acid ester, (adipic acid/2-ethylhexanoic acid/stearic acid) glyceryl oligoester, stearic acid hydrogenated castor oil, and hydroxystearic acid hydrogenated castor oil; Dimer acids such as dimer dilinoleic acid (phytosteryl/isostearyl/cetyl/stearyl/behenyl), dimer dilinoleic acid di(isostearyl/phytosteryl), and dimer dilinoleic acid dimer dilinoleylbisisostearyl. ester; (12-hydroxystearic acid/stearic acid/rosinic acid) dipentaerythrityl, hexa(12-hydroxystearic acid/stearic acid/rosinic acid) dipentaerythrityl, (12-hydroxystearic acid/isostearic acid ) dipentaerythritol fatty acid esters such as dipentaerythrityl; Fatty acid cholesteryl esters such as cholesteryl isostearate, cholesteryl hydroxystearate, and cholesteryl ricinoleate, sterol fatty acid esters such as fatty acid phytosteryl esters such as macadamia nut oil fatty acid phytosteryl ; These etc. are mentioned, 1 type(s) or 2 or more types selected from these can be used suitably.

Among the above components (B), from the viewpoints of durability of cloudiness during application, improvement of skin gloss, and softness of cosmetic film, from glycerin fatty acid esters, dipentaerythritol fatty acid esters, fatty acid cholesteryl esters, fatty acid phytosteryl esters, etc. One type or two or more types selected are preferable, and it is preferable that the component (B) contains one type or two or more types from these.

Among these components (B), in the present invention, phytosteryl oleate (water retention power: 144), macadamia nut oil fatty acid phytosteryl (water retention power) from the viewpoint of excellent whiteness at the time of application and glossiness of the skin after application : 202), N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl) (hydration power: 501), hexa(12-hydroxystearic acid/stearic acid/rosin acid) dipentaeryth Lityl (water holding power: 336) and cholesteryl hydroxystearate (water holding power: 169) are more preferable, and one or two or more selected from these can be suitably used.

Among these components (B), in the present invention, phytosteryl oleate and/or macadamia nut oil fatty acid phytosteryl are preferred from the viewpoints of the persistence of cloudiness during application, the glossiness of the skin after application, and the softness of the cosmetic film. Preferably, the component (B) preferably contains phytosteryl oleate and/or macadamia nut oil fatty acid phytosteryl, and more preferably contains at least phytosteryl oleate.

Commercially available products of such component (B) include, for example, lysterol ester (manufactured by Tsuno Rice Fine Chemicals Co., Ltd.) in the case of phytosteryl oleate, and in the case of macadamia nut oil fatty acid phytosteryl, for example, In the case of PLANDOOR MAS (manufactured by NIPPON FINE CHEMICAL CO., LTD.) and N-lauroyl-L-glutamic acid di(phytosteryl/octyldodecyl), for example, Eldew PS-203 (Ajinomoto Co., Inc. In the case of hexa(12-hydroxystearic acid/stearic acid/rosinic acid) dipentaerythrityl, for example, Cosmol 168ARN (manufactured by The Nisshin OilliO Group, Ltd.), cholesteryl hydroxystearate In this case, for example, Sarakos HS (manufactured by The Nisshin OiliO Group, Ltd.) and the like.

The content of the component (B) in the present invention is not particularly limited, but as a suitable lower limit of the content of the component (B), it is preferably 0.2% or more in the oil-in-water emulsified cosmetic from the viewpoint of maintaining cloudiness during application. 0.3% or more is more preferable, 0.4% or more is more preferable, 0.5% or more is still more preferable, and 0.6% or more is more preferable. In addition, as a suitable upper limit of the content of the component (B), from the viewpoint of the softness of the cosmetic film, in the oil-in-water emulsified cosmetic, it is preferably 5.5% or less, more preferably 4.5% or less, and still more preferably 3.5% or less. , 2.0% or less is more preferable, and 1.5% or less is more preferable. As a suitable numerical range of the said component (B), it is more preferably 0.2 to 5.5%, and still more preferably 0.4 to 3.5% in oil-in-water emulsified cosmetics. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

The content of one or two or more selected from glycerin fatty acid esters, dipentaerythritol fatty acid esters, fatty acid cholesteryl esters, and fatty acid phytosteryl esters in the component (B) is not particularly limited. In cosmetics, as a suitable lower limit, it is preferably 0.2% or more, more preferably 0.4% or more, still more preferably 0.8% or more, and as a suitable upper limit, preferably 5.5% or less, more preferably 3.5%. or less, more preferably 2.0% or less, even more preferably 1.5% or less, still more preferably 1.2% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

Each content of phytosteryl oleate or macadamia nut oil fatty acid phytosteryl in the above component (B) is not particularly limited, but each is preferably 0.1% or more as a suitable lower limit in oil-in-water emulsified cosmetics. , preferably 0.2% or more, more preferably 0.4% or more, still more preferably 0.5% or more, and as a suitable upper limit, preferably 5.5% or less, more preferably 3.5% or less, still more preferably 2.0% or less, more preferably 1.5% or less, more preferably 1.0% or less, still more preferably 0.6% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<1-3. Component (C) Phenyl Modified Silicone>

The component (C) phenyl-modified silicone used in the present invention has a phenyl group in a part of the polysiloxane, and is blended for the purpose of imparting softness to the cosmetic film after application without reducing cloudiness (persistence) during application.

As the component (C) phenyl-modified silicone, specifically, for example, phenylmethicone, phenyldimethicone, phenyltrimethicone, diphenyldimethicone, diphenylsiloxyphenyltrimethicone, trimethylpentaphenyltrisiloxane, etc. can be mentioned, and 1 type, or 2 or more types selected from these can be used suitably.

Examples of commercially available products of component (C) phenyl-modified silicone include KF-54, KF-56, and KF-54HV as diphenyldimethicone, (above, manufactured by Shin-Etsu Chemical Co., Ltd.), and trimethylpentaphenyl. Examples of the trisiloxane include PH-1555 HRI Cosmetic Fluid and FZ-3156 (manufactured by Dow Corning Toray Co., Ltd.) and the like, and one or two or more selected from these can be appropriately used. In addition, you may use what was obtained by a well-known manufacturing method as component (C).

Among the above-mentioned component (C), in the present invention, diphenyldimethicone and/or diphenylsiloxyphenyltrimethicone are preferred from the viewpoint of the persistence of cloudiness during application, and component (C) is one or more of these. It is preferable to include 2 types.

The content of the component (C) in the present invention is not particularly limited, but as a suitable lower limit of the content of the component (C), in the oil-in-water emulsified cosmetic, 1% or more is preferable, 2% or more is more preferable, 3% or more is more preferable, and 4% or more is even more preferable. Further, as a suitable upper limit of the content of the component (C), in the oil-in-water emulsified cosmetic, 9.5% or less is preferable, 9% or less is more preferable, 8% or less is still more preferable, and 7% or less is still more preferable. And, 6% or less is more preferable. As a suitable numerical range of the said component (C), it is more preferably 1 to 9%, and still more preferably 2 to 8% in an oil-in-water emulsified cosmetic. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

The content of diphenyldimethicone and/or diphenylsiloxyphenyltrimethicone in the component (C) is not particularly limited, but is preferably 1% or more as a suitable lower limit in oil-in-water emulsified cosmetics. It is preferably 2% or more, more preferably 3% or more, still more preferably 4% or more, and as a suitable upper limit, preferably 9% or less, more preferably 8% or less, still more preferably 7% or less, more preferably 6% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<1-4. Component (D) higher alcohol having 12 to 22 carbon atoms>

The component (D) higher alcohol having 12 to 22 carbon atoms used in the present invention is not particularly limited as long as it is usually used in cosmetics, and the component (D) higher alcohol having 12 to 22 carbon atoms obtained by a known production method You may use it, and you may use a commercial item. Component (D) The higher alcohol having 12 to 22 carbon atoms may be either a saturated higher alcohol containing no unsaturated bond or an unsaturated higher alcohol.

As the component (D) higher alcohol having 12 to 22 carbon atoms, specifically, for example, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, linoleyl alcohol, behenyl alcohol, etc. can be heard In addition, cetostearyl alcohol (a mixture of cetanol and stearyl alcohol), which is a mixture of two types of alcohol, can also be used. Behenyl alcohol having 22 carbon atoms and cetostearyl alcohol, which is a mixture of two types of alcohol, can be preferably used. 1 type, or 2 or more types selected from these can be used suitably.

Among the above-mentioned component (D), in the present invention, one kind selected from cetanol, stearyl alcohol, cetostearyl alcohol, and behenyl alcohol from the viewpoint of the durability of cloudiness at the time of application, the glossiness of the skin, and the softness of the cosmetic film, or Two or more types are preferable, cetostearyl alcohol is more preferable, and the component (D) preferably contains one or two or more of these, and further includes at least cetostearyl alcohol. more preferable

The content of the component (D) in the present invention is not particularly limited, but as a suitable lower limit of the content of the component (D), from the viewpoint of maintaining cloudiness during application and improving the emulsion stability, among oil-in-water emulsified cosmetics , It is preferably 0.1% or more, more preferably 0.3% or more, more preferably 0.5% or more, still more preferably 1% or more, and still more preferably 1.5% or more. In addition, as a suitable upper limit of the content of the component (D), from the viewpoint of the softness of the cosmetic film, in the oil-in-water emulsified cosmetic, it is preferably 8% or less, more preferably 5% or less, more preferably 4% or less, 3% or less is more preferable. As a suitable numerical range of the said component (D), it is more preferably 0.1 to 8%, and still more preferably 0.3 to 5% in oil-in-water emulsified cosmetics.

The content of one or two or more selected from cetanol, stearyl alcohol, cetostearyl alcohol, and behenyl alcohol in the component (D) is not particularly limited, but among oil-in-water emulsified cosmetics, as a suitable lower limit, Preferably 0.1% or more, more preferably 0.3% or more, still more preferably 0.5% or more, even more preferably 1% or more, still more preferably 1.5% or more, and as a suitable upper limit, preferably 8% or less, more preferably 5% or less, still more preferably 4% or less, still more preferably 3% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

The respective content of cetostearyl alcohol or behenyl alcohol in the above component (D) is not particularly limited, but is preferably 0.3% or more, more preferably 0.5% or more as a suitable lower limit in oil-in-water emulsified cosmetics. , More preferably 0.8% or more, still more preferably 1% or more, and as a suitable upper limit, preferably 4% or less, more preferably 3% or less, still more preferably 2.5% or less or 2% less than %. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<1-5. emulsion>

The oil agent used in the present invention refers to a liquid to solid oily substance (eg, ester oil, wax, etc.) at 25°C.

The emulsion is not particularly limited as long as it is usually used for skin external preparations or cosmetics. As the oil agent, for example, hydrocarbons, fats and oils, waxes, hydrogenated oils, ester oils, silicone oils, fluorine-based oils, lanolin derivatives, and oil-soluble, regardless of animal oils, vegetable oils, mineral oils, and synthetic oils UV absorbers etc. are mentioned, and 1 type(s) or 2 or more types selected from these can be used suitably.

The term "whole emulsion" in the present specification refers to component (A) an oil agent that does not contain a surfactant such as an anionic surfactant, component (B) an oil agent having a water retention capacity relative to its own weight of a predetermined or higher level, component (C) phenyl-modified silicone, and component (D) A higher alcohol having 12 to 22 carbon atoms and the total mass of an oil agent contained in oil-in-water emulsified cosmetics other than these components (B) to component (D).

The total amount of oil in the oil-in-water emulsified cosmetic of the present invention, specifically, the total content of the oil in the oil-in-water emulsified cosmetic is not particularly limited, but is preferably 0.01% or more, more preferably 0.05% as a suitable lower limit thereof. or more, more preferably 0.1% or more, more preferably 0.5% or more, still more preferably 1% or more, still more preferably 3% or more, still more preferably 5% or more, still more preferably 8% or more, More preferably 9% or more, more preferably 10% or more, and as a suitable upper limit thereof, preferably 20% or less, more preferably 17% or less, still more preferably 15% or less, still more preferably It is preferably 14% or less, more preferably 13% or less, and as the above preferred numerical range, 0.01 to 20% is preferable, and 8 to 15% is more preferable. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<1-6. Each content mass ratio>

<Containing mass ratio of [above component (B)/whole emulsion]>

The content mass ratio or mass ratio of component (B) to the entire oil agent of the present invention ([component (B)/whole oil agent]) is not particularly limited, but is a more suitable lower limit from the viewpoints of cloudiness persistence and glossiness. , preferably 0.01 or more, more preferably 0.03 or more, still more preferably 0.04 or more, still more preferably 0.05 or more, still more preferably 0.055 or more, even more preferably 0.06 or more, and the softness of the cosmetic film. From the viewpoint of, as a more suitable upper limit, it is preferably 0.35 or less, more preferably 0.2 or less, still more preferably 0.15 or less, still more preferably 0.14 or less, even more preferably 0.10 or less, still more preferably 0.09 or less. or less, more preferably 0.08 or less. As for the preferable range of the numerical value of [component (B)/entire oil agent], it is more preferably from 0.01 to 0.35, still more preferably from 0.05 to 0.10. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

<(Containing mass ratio of the component (C)/[the component (A) + the component (D)])>

The content mass ratio or used mass ratio of (total amount of component (A) and component (D)) to component (C) of the present invention (the above component (C) / [the above component (A) + the above component (D)] ) is not particularly limited, but as a more suitable lower limit from the viewpoint of the softness and glossiness of the cosmetic film, preferably 0.45 or more, more preferably 0.5 or more, still more preferably 0.6 or more, still more preferably 0.7 or more, More preferably 0.8 or more, more preferably 0.9 or more, more preferably 1.0 or more, still more preferably 1.1 or more, and from the viewpoint of the persistence of cloudiness, as a more suitable upper limit, preferably 2.5 or less, more Preferably 2.2 or less, more preferably 2.1 or less, even more preferably 2.0 or less, more preferably 1.9 or less, still more preferably 1.8 or less, still more preferably 1.7 or less, still more preferably 1.6 or less, more Preferably it is 1.5 or less. (Component (C) / [component (A) + component (D)]) is more preferably from 0.4 to 2.5, more preferably from 1.0 to 1.5 as the range of the above-described preferred range of the content mass ratio. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved. In addition, the mass of "component (A)" in (component (C)/[component (A) + component (D)]) is determined in terms of sodium salt as described above.

In addition, the water-in-water emulsified cosmetic of the present invention, from the viewpoint of better persistence of white turbidity, softness of cosmetic film, and better gloss of skin, the above [component (B) / whole oil agent], the above (component (C) / [component (A) ) + component (D)]) is more preferably combined, more preferably, the above [component (B)/whole oil agent] is 0.01 to 0.35, and the above (component (C) / [component (A) + component (D)]) is 0.4 to 2.5.

<1-5. Random Ingredients>

In the oil-in-water emulsified cosmetic of the present invention, in addition to the above components (A) to (D), components used in conventional skin external preparations may be appropriately contained, blended, or used within a range that does not impair the effects of the present invention. Examples of the components include surfactants other than component (A), emulsions other than components (B) to (D), aqueous components such as water-soluble polymers, polyhydric alcohols and lower alcohols, ultraviolet absorbers, antioxidants, and antibacterial agents. , preservatives, humectants, pH adjusters, cooling agents, powders, vitamins, cosmetic ingredients, fragrances, brightening ingredients, whitening active ingredients, and the like, and one or two or more selected from these can be appropriately used.

In the oil-in-water emulsion cosmetic of the present invention, in addition to the above components (A) to (D), one or two selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids as component (E) You may further contain or mix|blend more than a species. Since these have a brightening action or a whitening action, you may contain, blend, or use a brightening component and/or a whitening active ingredient as component (E) in the oil-in-water emulsified cosmetic of the present invention.

A "brightening component" in the present specification refers to a drug active ingredient that brightens the skin, and a whitening active ingredient may be included in the division of the brightening component. A whitening active ingredient refers to a compound or component capable of exerting a whitening action on the skin, and is a component or compound capable of suppressing melanin production and exhibiting an action of preventing spots and freckles. As the brightening component or active whitening component, one obtained by a known production method (for example, a synthetic component, an extract component, etc.) may be used, or a commercially available product may be used.

L-ascorbic acid 2-glucoside of component (E) used in the present invention is a molecule in which one molecule of glucose is bound to the second position of L-ascorbic acid, and is known to have a high whitening effect.

The niacinamide of component (E) used in the present invention is an amide compound of nicotinic acid (vitamin B3/niacin). Niacinamide is a water-soluble vitamin, a known substance that is one of the B vitamins, and can be extracted from natural products (such as rice bran) or synthesized according to known methods. Specifically, those listed in the 17th edition of the Japanese Pharmacopoeia can be used.

As the tranexamic acids of component (E) used in the present invention, one or two or more selected from tranexamic acid and its derivatives are exemplified, and these are components having a whitening effect or an anti-inflammatory effect.

Tranexamic acid is one of amino acids represented by trans-4-(aminomethyl)cyclohexane-1-carboxylic acid, and is known as a component having skin whitening and anti-inflammatory effects, as well as when used as a hemostatic agent there is

In the present invention, it is possible to use a derivative of tranexamic acid in place of or in combination with tranexamic acid.

The derivative of tranexamic acid includes a dimer of tranexamic acid (for example, trans-4-(transaminomethylcyclohexanecarbonyl)aminomethylcyclohexanecarboxylic acid hydrochloride), an ester of tranexamic acid and hydroquinone ( For example, trans-4-aminomethylcyclohexanecarboxylic acid 4'-hydroxyphenyl ester), an ester of tranexamic acid and genticic acid (for example, 2-(trans-4-aminomethylcyclohexanecarbonyloxy )-5-hydroxybenzoic acid and its salts), amides of tranexamic acid (e.g., trans-4-aminomethylcyclohexanecarboxylic acid methylamide and its salts, trans-4-(P-methoxybenzoyl)amino methylcyclohexanecarboxylic acid and salts thereof, trans-4-guanidinoaminomethylcyclohexanecarboxylic acid and salts thereof), alkyl esters of tranexamic acid and salts thereof.

Specifically as said tranexamic acid, tranexamic acid lauryl ester, tranexamic acid myristyl ester, tranexamic acid cetyl ester, tranexamic acid stearyl ester, etc. are mentioned, for example.

In addition, it is possible to take the form of a salt as a derivative, and as a kind, mineral acid salts, such as hydrochloride, phosphate, sulfate, bromate, and nitrate; organic acid salts such as oxalate, lactate and citrate; A carbonate etc. are mentioned.

Among the above-mentioned tranexamic acids, as a whitening active ingredient that improves or suppresses pigmentation, tranexamic acid is preferable.

The content of component (E) in the present invention varies depending on the action and effect as an active ingredient, but as a lower limit suitable for oil-in-water emulsified cosmetics, it is preferably 1% or more, particularly preferably 2% or more, and more preferably 2% or more. As an upper limit, it is preferable that it is 10 % or less, more preferably 9 % or less, still more preferably 8 % or less, and still more preferably 7 % or less.

The content of one or two or more selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids in the above component (E) is not particularly limited, but is a lower limit suitable for oil-in-water emulsified cosmetics. , preferably 1% or more, more preferably 2% or more, and as a suitable upper limit, preferably 10% or less, more preferably 9% or less, still more preferably 8% or less, still more preferably It is 7% or less.

A first object of the present invention is to provide an oil-in-water emulsified cosmetic that can produce an effect that instantly brightens the skin and has an excellent glossy finish on the skin, and achieves the first object. can

The oil-in-water emulsified cosmetic of the present invention can also contain or blend powder, such as a powder that is transparent and pleasant to the touch, in order to obtain the effect of making the skin look bright. In addition, the present invention has an excellent advantage that the skin brightness can be produced immediately without containing or using powder (especially white pigment).

Therefore, a second object of the present invention is to provide an oil-in-water emulsified cosmetic that can produce an effect that instantly brightens the skin without using a white pigment, and also has an excellent glossy finish on the skin. Alternatively, this second object can be achieved.

As the "white pigment", one or two or more selected from zinc oxide, titanium oxide, and the like can be exemplified, and zinc oxide and titanium oxide generally scatter ultraviolet rays when they have a property of reflecting and/or scattering ultraviolet rays. is also called

For this reason, the content of the white pigment in the oil-in-water emulsified cosmetics can be preferably not included at least 5%, more preferably at least 3%, still more preferably at least 2%, still more preferably at least 1%. You may choose not to include any more. In addition, in the case of the present invention, the content of the white pigment in the oil-in-water emulsified cosmetics can be substantially not included, such as 0.5% or less, 0.1% or less, 0.05% or less, or 0.01% or less. As a result, the durability of the white turbidity, the softness of the cosmetic film, and the glossiness of the skin can be further improved.

In addition, the present invention produces an effect that instantly brightens the skin without using powder (especially white pigment), while providing a finish that becomes a soft cosmetic film after application and a glossy finish to excellent skin. The third objective may be to provide a type emulsified cosmetic, and this third objective may be achieved by adjusting various components and various contents.

And, by achieving the above-mentioned third object, when the present invention is used on the skin, since the white turbidity at the time of application lasts for a certain length of time, it is possible to produce immediate skin brightness, and furthermore, it is white turbid by applying a smear. Although it disappears, after it disappears, you can get a glossy finish on the skin that can create a bright skin along with a finish that becomes a soft makeup film.

In addition, the oil-in-water emulsified cosmetic of the present invention can produce an effect that instantly brightens the skin, can have a good feeling of use, and can also have excellent stability over time.

In addition, the oil-in-water emulsified cosmetic of the present invention contains, blends or uses the above components (A) to (D) and further component (E) as compounding components, thereby producing a white turbidity and glossiness of the finish at the time of use, The skin can be whitened or brightened immediately, and a whitening or brightening effect can also be exerted on the skin by long-term or continuous use of the cosmetic.

For this reason, the oil-in-water emulsified cosmetic of the present invention is preferably useful as a skin care cosmetic, more preferably as a whitening cosmetic and a brightening cosmetic. In addition, "brightening cosmetics" generally refer to cosmetics that make the skin look bright, cosmetics used to make the skin bright, or external skin preparations.

The method for producing the oil-in-water emulsified cosmetic of the present invention is not particularly limited, and the oil-in-water emulsified cosmetic may be prepared according to a conventional method. For example, to a mixture of components (A) to (D) or components (A) to (E) and optional components such as other additives as necessary, a mixture of water and optional components is added as needed, , can be obtained by emulsification.

The oil-in-water emulsified cosmetic of the present invention is not particularly limited, but examples thereof include liquid, gel, emulsion, cream, semi-solid and solid forms. Moreover, as a product form, cosmetics for skin, such as a massage agent, emulsion, cream, beauty essence, makeup base, and sunscreen, etc. can be illustrated. Among these, emulsions, creams, and beauty essences applied to the face are water-in-water emulsified cosmetics in which the effect of the present invention is likely to be exhibited in that it is easy to feel the immediate brightness of the skin due to the white turbidity at the time of application. Moreover, as a method of using it, a method of taking an appropriate amount in a hand and using it is exemplified. In addition, the oil-in-water emulsified cosmetic of the present invention may be appropriately applied to an oil-in-water emulsion composition, skin external preparations, quasi-drugs, and the like.

<2. Compositions of the present disclosure, methods of use, etc.>

In addition, as another aspect of the present invention, the present disclosure, in the oil-in-water emulsion composition using component (A) anionic surfactant and component (D) higher alcohol having 12 to 22 carbon atoms, component (B) water-absorbing emulsion and Component (C) phenyl-modified silicone can be used in combination or in combination to produce an effect that instantly brightens the skin, and an oil-in-water emulsion composition excellent in glossy finish can be provided.

In addition, in the description of the present disclosure, the above-mentioned "1. The description of components (A) to (E), oil, each content, each content mass ratio, manufacturing method, each composition, each method, each term, etc., which overlaps with the description of "water-in-water emulsified cosmetic of the present invention" Although omitted, the above-mentioned “1. The description of "water-in-water emulsified cosmetics" is also applied to the present embodiment, and can be appropriately employed. It is good also considering content and the content mass ratio as usage amount and use mass ratio. In addition, the oil-in-water emulsion composition of the present disclosure may be applied to oil-in-water emulsion cosmetics and the like.

The present disclosure provides a method for instantly brightening the skin by using an oil-in-water emulsion composition containing the component (A) to the component (D) or the component (A) to the component (E) on the skin, and / Alternatively, it is possible to provide a method for improving the effect of a glossy finish on the skin, a method for producing an effect that instantly brightens the skin at the time of application, and a method for giving the skin a more glossy finish after additional application.

The use is not particularly limited, but application, rubbing, or massage is preferable. The application site is preferably one or two or more selected from the face, arms, neck, legs and the like. When the oil-in-water emulsion composition of the present disclosure is used, since it is possible to varnish by application, rubbing, massage, etc., there is also an advantage that there is no need to perform special removal such as wiping with a nonwoven fabric such as cotton or woven fabric.

The present disclosure, in an oil-in-water emulsion composition comprising the component (A) and the component (D), by using the component (B) water-absorbing emulsion and the component (C) phenyl-modified silicone, the component (A) And a method for immediately brightening the skin of the oil-in-water emulsion composition containing the component (D), and / or a method for improving the glossy finish of the oil-in-water emulsion cosmetic.

The present technology can also employ the following configuration.

〔One〕

The following components (A) to (D):

(A) anionic surfactant

(B) An emulsion having a water holding power relative to its own weight of 130% or more (more preferably 140% or more)

(C) phenyl modified silicone

(D) a higher alcohol having 12 to 22 carbon atoms

An oil-in-water emulsified cosmetic containing

〔2〕

The component (A) contains one or more selected from fatty acid salts (preferably fatty acids having 12 to 24 carbon atoms), N-acylmethyltaurine or salts thereof, and N-acylamino acids or salts thereof. The oil-in-water emulsified cosmetic according to [1] above. The more preferable component (A) contains at least a fatty acid salt. The more preferable said component (A) contains 1 type(s) or 2 or more types selected from stearic acid salt, N-stearoyl methyltaurine or its salt, and its salt, N-stearoyl glutamic acid, or its salt.

[3]

The above component (B) is phytosteryl oleate, macadamia nut oil fatty acid phytosteryl, N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl), hexa(12-hydroxy The oil-in-water emulsion cosmetic according to [1] or [2] above, which contains one or two or more selected from stearic acid/stearic acid/rosin acid) dipentaerythrityl and cholesteryl hydroxystearate.

〔4〕

The component (C) is the oil-in-water emulsion cosmetic according to any one of [1] to [3], containing one or two or more selected from diphenyldimethicone and diphenylsiloxyphenyltrimethicone. .

[5]

The component (D) is the oil-in-water type according to any one of [1] to [4] above containing one or two or more selected from cetanol, stearyl alcohol, cetostearyl alcohol, and behenyl alcohol. emulsified cosmetics. More preferably, the said component (D) contains cetostearyl alcohol and/or behenyl alcohol.

[6]

Component (E) The oil-in-water emulsified cosmetic according to any one of [1] to [5], further containing a brightening component.

[7]

The oil-in-water emulsion cosmetic according to [6] above, wherein the component (E) contains one or two or more selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids.

〔8〕

The oil-in-water emulsion cosmetic according to any one of [1] to [7], wherein the content of the component (D) is less than 10% by mass.

[9]

The content mass ratio of [the component (B)/whole emulsion] is 0.01 to 0.35, and/or the content mass ratio of (the component (C)/[the component (A) + the component (D)]) The oil-in-water emulsion cosmetic according to any one of [1] to [8], wherein silver is 0.4 to 2.5.

[10]

The oil-in-water emulsion cosmetic according to any one of [1] to [9] above, which does not contain 5% or more of a white pigment.

[11]

A method for immediately brightening the skin and/or improving a glossy finish effect by using the oil-in-water emulsion cosmetic or oil-in-water emulsion composition according to any one of the above [1] to [10] on the skin. As for the use, application, rubbing, or massage is preferable.

[12]

For an oil-in-water emulsion composition comprising the above component (A) and the above component (D), containing the above component (B) water-absorbing emulsion and the above component (C) phenyl-modified silicone, immediately brightening the skin A composition or agent for improving a lustrous finish and/or for improving a lustrous finish.

[13]

Regarding the oil-in-water emulsion composition containing the above component (A) and the above component (D), for producing a composition or agent for immediately brightening the skin and/or enhancing the glossy finish effect Component (B) water-absorbing emulsion and component (C) phenyl-modified silicone or use thereof.

[14]

Regarding the oil-in-water emulsion composition comprising the above component (A) and the above component (D), the above component for use to instantly brighten the skin and/or to improve the glossy finish (B) a water-absorbing emulsion and the component (C) phenyl-modified silicone or a mixture thereof. Alternatively, use of the above component (B) and/or the above component (C) for the above-mentioned oil-in-water emulsion composition for immediately brightening the skin and/or for improving a glossy finish.

Example

Hereinafter, Examples are given to explain the present invention in detail, but the present invention is not limited to these Examples and the like. In addition, unless otherwise specified, content is expressed by mass% with respect to the cosmetics containing the component.

Examples 1 to 24 and Test Examples 1 to 9: Emulsion

Emulsions having the compositions shown in Tables 1 to 3 were prepared according to the following production method, and evaluation was performed according to the method shown below for A: cloudiness at the time of application, B: softness of a cosmetic film, and C: glossiness. The results are collectively shown in Table 1, Table 2 and Table 3.

[Table 1]

[Table 2]

[Table 3]

(Manufacturing method: Examples 1 to 13 and Test Examples 1 to 7)

A: Components (1) to (19) were uniformly heated and melted at 70°C.

B: The components (20) to (22) were uniformly heated to a solution at 70°C.

C: B was added to A at 70°C and stirred.

D: An emulsion was obtained by adding (23) to (27) to C at room temperature and stirring.

(Manufacturing method: Examples 14 to 24 and Test Examples 8 to 9)

A: Components (1) to (11) were uniformly heated and melted at 70°C.

B: The components (12) to (14) were uniformly heated to a solution at 70°C.

C: B was added to A at 70°C and stirred.

D: An emulsion was obtained by adding (15) to (20) to C at room temperature and stirring.

In addition, the content of stearic acid and N-stearoylglutamic acid in Tables 1 to 3 is the mass when Na salt is not included. In addition, "A, B, C, D, E, oil" in the column of compounding components in Tables 1 to 3 are respectively component (A), component (B), component (C), component (D), component (E), and emulsion.

In Tables 1 to 3, phytosteryl oleate (capacity: 144), macadamia nut oil fatty acid phytosteryl (capacity: 202), cholesteryl hydroxystearate (capacity: 169), hexa (12) -Hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl (hydration power: 336), N-lauroyl-L-glutamic acid di(phytosteryl 2-octyldodecyl) (hydration power: 501) , Hydrogenated coconut oil (water holding power: 125), and vaseline (water holding power: 104), respectively, can be obtained by the above "test method (measurement method of water holding power of water absorbing emulsion)", and these are water holding power Since it is 100% or more, it is a water-absorbing emulsion (an oil agent capable of catching water equal to or greater than its own weight).

In addition, for the water-absorbing emulsions in Tables 1 to 3, commercially available products are used. For example, "phytosteryl oleate (water-absorbing power: 144)" is lysterol ester (manufactured by Tsuno Rice Fine Chemicals Co., Ltd.) used

When determining the content mass ratio of [(C)/(A)+(D)] in Tables 1 to 3, the content of (A) was determined in terms of sodium salt. For example, 0.3%, 1%, 2%, and 3.5% of stearic acid in Table 1 are 0.32% and 1.08%, respectively, based on sodium salt conversion ((molar mass 284.5 + 23.0) / molar mass 284.5 = 1.08). , 2.16%, can be calculated as 3.78%.

"Whole oil (total mass of oil)" in [(B)/whole oil agent] in Tables 1 to 3 is the component (B), component (C), and component (D), and these components (B) to (D ), and the total mass with the oil agent, and the oil agent does not contain the component (A) and the surfactant.

(Evaluation Method 1)

(A. Cloudiness during application)

Apply a cherry-sized agent (about 2g) to the inner part of the forearm, and let the agent permeate at a constant speed (1 round trip per second) to the area from the tip of the palm to the elbow, and the agent will immediately penetrate the skin and do not disappear. , and the white spreading time was measured with a stopwatch.

<Judgment Criteria>

(Judgment): (Evaluation)

◎: cloudy for 5 seconds or longer: very good

○: 2 to 5 seconds turbidity: good

△: 1 to 2 seconds turbidity: slightly poor

×: Cloudy only for 1 second or less: Bad

As a more specific explanation, a professional panelist who puts a cherry-sized agent (about 2 g) on the skin of the inner side of the forearm and performs the rubbing, from the tip of the palm to the elbow (the hollow on the inside of the arm opposite the elbow). Between parts, the formulation is applied with the palm of the hand, rubbed back and forth at a constant speed (one reciprocation per second), and allowed to permeate. By applying the agent back and forth, the agent does not permeate the skin at first and spreads white, so the skin looks white, and further rubbing causes the whiteness (whiteness) of the agent to disappear. A specialized panel that determines cloudiness judges that the agent has "permeated" when this has disappeared. The expert panel that determines cloudiness measures the period (time) from the start of application by the expert panel that applies the coating until the formulation penetrates the skin by the coating with a stopwatch, and this time is used as the cloudiness time at the time of application. and the cloudiness at the time of coating is evaluated in the above <Criterion>.

(Evaluation method 2)

Women in their 20s to 40s were trained in sensory evaluation, and 10 expert panels who could be evaluated based on a certain standard were selected. The expert panel used each sample on the forearm, and for each, the softness of the cosmetic film felt during use and the glossiness of the skin after application were evaluated on a 5-level scale in the absolute evaluation below, and gave a rating. In addition, about the softness and glossiness of the cosmetic film, the average value was calculated from the sum of the ratings of all the panels for each sample, and judged according to the following 4-step criterion.

(B: The softness of the makeup film)

<Absolute Evaluation Criteria>

(Rating): (Rating)

5 points: Feeling that there is no film hardness after application

4 points: Slight feeling that there is no film hardness after application

3 points: Fair (neither good nor bad)

2 points: Slight feeling that there is film hardness after application

1 point: Feeling that there is film hardness after application

<4-step judgment criteria> (similar to the following evaluation items)

(Judgment): (Average of ratings)

◎: More than 4.5 points: Very good

○: More than 3.5 points and 4.5 points or less: Good

△: More than 1.5 points and 3.5 points or less: Slightly poor

×: 1.5 points or less: poor

In addition, the absence of film hardness after application means that the cosmetic film is soft and has no hardness, and the feeling that the film has no hardness means that the cosmetic film is slightly soft. Slightly feeling that the film has hardness means that the makeup film is felt to be slightly hard, and feeling that the film has hardness means that the makeup film is felt to be hard. The soft film feeling means the softness of the cosmetic film felt.

(C: glossiness)

<Absolute Evaluation Criteria>

(Rating): (Rating)

5 points: Feeling that the skin has a glossy feel

4 points: Feeling that the skin has a slight glossiness

3 points: Fair (neither good nor bad)

2 points: I don't feel that there is a lot of gloss on the skin.

1 point: I do not feel that there is a glossiness of the skin

As is clear from the results of Tables 1 to 3, the emulsions of Examples 1 to 24 were superior to the emulsions of Test Examples 1 to 9 in terms of immediate cloudiness, softness and glossiness of the cosmetic film after application. In addition, the emulsions (water-in-water type emulsified cosmetics) of Examples 1 to 24 can produce a good effect of immediately making the skin look white by applying the turbidity by applying, and the white turbidity is varnished by applying, and has a good A soft makeup film and a good glossy finish were obtained. At this time, when the emulsions of Examples 1 to 24 were used, wiping with a nonwoven fabric such as cotton or a woven fabric did not have to be particularly performed at the time of finishing.

On the other hand, Test Example 1 (Comparative Example 1) not containing component (A) was inferior in immediate cloudiness (white expression, effect of making the skin look bright).

Test Example 2 (Comparative Example 2) using a mixture of petroleum jelly having a water holding capacity of 104% and hydrogenated coconut oil having a water holding capacity of 125%, instead of the water trapping emulsion of component (B) of Example 1, showed immediate cloudiness and glossiness. fell behind in Considering Example 1, Test Example 2, and Example 8, among the water-absorbing emulsions, at least an emulsion having a water-catching power relative to its own weight of 120% or more, more preferably 140% or more, is contained to produce an immediate cloudiness, or The present inventor thought that it is important to use.

Component (C) In Test Example 3 (Comparative Example 3) using a silicone oil having no phenyl group instead of the phenyl-modified silicone, there was no immediate whitening, and the effect of instantly brightening the skin was inferior.

Test Example 4 (Comparative Example 4) not containing the component (D) was inferior in immediate cloudiness.

Further, in Test Example 5, although the instant cloudiness was very good and the glossiness was slightly poor, the effect of making the skin look bright was generally able to be produced. In Test Example 7, the immediate cloudiness was very good, and the glossiness was also very good.

In addition, from the results of Tables 1 and 2, in Examples 1 to 24, the immediate whiteness and glossiness are good, the effect of making the skin look bright can be produced, and a soft cosmetic film can be formed, so a better feeling of use can also be obtained.

In this respect, component (A) an anionic surfactant, component (B) a water trapping oil having a water trapping capacity relative to its own weight of 125% or more, component (C) phenyl-modified silicone, and component (D) a higher alcohol having 12 to 22 carbon atoms If it is an oil-in-water emulsified cosmetic to contain, an effect of instantly brightening the skin can be produced, and an excellent effect of a glossy finish can be obtained.

Examples 1 and 14 were extremely excellent in terms of white turbidity over time, soft film feeling, and glossiness.

In Example 1, Example 9, and Example 10, as component (A), stearic acid salt, N-stearoylglutamic acid salt, and N-stearoylmethyltaurine salt are preferable, and in particular, stearic acid salt is more preferable. Moreover, it was thought that 0.32% - 3.78% were preferable as content of component (A).

In Examples 1 and 8, as component (B), phytosteryl oleate, macadamia nut oil fatty acid phytosteryl, N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl ), hexa(12-hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl, and cholesteryl hydroxystearate are preferred, and these are emulsions having a water holding capacity of 140% or more and 340% or less. In Examples 1 to 7, Example 11 and the like, phytosteryl oleate and/or macadamia nut oil fatty acid phytosteryl are more preferred, and at least phytosteryl oleate is also preferred. As content of component (B), when looking at Example 1, Example 14, Example 17, Example 18, etc., it was thought that 0.2 to 5.5% is more preferable.

Looking at Example 1, Example 3, Example 12, etc., diphenyldimethicone and/or diphenylsiloxyphenyltrimethicone were preferable as component (C). Looking at Example 1, Example 14, Example 19, Example 20, etc., as content of component (C), 2 to 9% was more preferable.

In Example 1, Example 13, Example 21, Example 22 and the like, cetostearyl alcohol and/or behenyl alcohol were preferred. Looking at Example 1, Example 14, Example 22, Example 23, etc., as content of component (D), 0.3 to 5% was more preferable.

In Example 1, Example 14, Example 6, Example 7, Example 18, etc., the content mass ratio of [the component (B)/whole oil agent] is more preferably 0.01 to 0.35, and further 0.05 to 0.1 it was desirable

In Example 1, Example 14, Example 5, Example 19, etc., the content mass ratio of [the component (A) + the component (D)] is more preferably 0.4 to 2.5, and more preferably 1.0 to 1.5 did.

In Examples 1 to 24, even if a brightening component or active whitening ingredient is included, the immediate whitening and skin glossiness are good, so that immediate skin brightness can be produced, and this water-in-water emulsified cosmetic can be used for a long term. By using it, a brightening effect and a whitening effect can also be expected. For this reason, by using the oil-in-water emulsified cosmetic of the present invention, even if the user wants to immediately request the brightness of the skin, the expectation can be met, and the expectation of improving or maintaining the brightness of the skin due to long-term use can also be accommodated.

Formulation Example 1: Oil-in-water emulsified cosmetic solution

(ingredient) (mass%)

(1) N-stearoylmethyltaurine Na 0.8

(2) phospholipids 0.2

(3) Macadamia nut oil fatty acid phytosteryl 0.5

(4) Hexa(hydroxystearic acid/stearic acid/rosinic acid) dipentaerythrityl

0.5

(5) Dimethicone One

(6) (dimethicone/vinyldimethicone) crosspolymer 1.2

(7) Meadow Foam Oil One

(8) dicapric acid PG 8

(9) diphenyldimethicone 4

(10) Cetostearyl Alcohol 1.5

(11) Purified water balance

(12) Glycerin 5

(13) Xanthan Gum 0.02

(14) carrageenan 0.01

(15) Gellan Gum 0.01

(16) (acrylate/alkyl acrylate (C10-30) crosspolymer

0.1

(17) Sodium hydroxide 0.03

(18) tranexamic acid 2

(19) L-ascorbic acid 2-glucoside 2

(20) L-Serine 0.05

(21) L-Arginine 0.01

(22) hydrolyzed hyaluronic acid 0.01

(23) Ethylhexylglycerin 0.2

(24) Ethanol 5

(Manufacturing method)

A: Components (1) to (10) are uniformly mixed and dissolved at 70°C.

B: Components (11) to (12) are uniformly dissolved and mixed at 70°C.

C: Add B to A and emulsify at 70°C.

D: After cooling C to 40°C, components (13) to (24) were added and mixed uniformly to obtain a serum.

The oil-in-water emulsified cosmetic liquid of Formulation Example 1 obtained as described above was excellent in the durability of cloudiness at the time of application, the softness of the cosmetic film, and the glossiness.

Claims (7)

The following components (A) to (D):
(A) anionic surfactant
(B) Emulsions having a water holding capacity of 140% or more with respect to their own weight
(C) phenyl modified silicone
(D) a higher alcohol having 12 to 22 carbon atoms
A water-in-water emulsified cosmetic containing a. According to claim 1,
The oil-in-water emulsified cosmetic composition in which the said component (A) contains 1 type(s) or 2 or more types selected from fatty acid salt, N-acylmethyltaurine or its salt, N-acylamino acid, or its salt. According to claim 1 or 2,
The above component (B) is phytosteryl oleate, macadamia nut oil fatty acid phytosteryl, N-lauroyl-L-glutamate di(phytosteryl 2-octyldodecyl), hexa(12-hydroxy An oil-in-water type emulsified cosmetic comprising one or two or more selected from stearic acid/stearic acid/rosin acid) dipentaerythrityl and cholesteryl hydroxystearate. According to any one of claims 1 to 3,
The oil-in-water emulsified cosmetic composition in which the said component (C) contains 1 type(s) or 2 or more types selected from diphenyl dimethicone and diphenylsiloxyphenyl trimethicone. According to any one of claims 1 to 4,
The oil-in-water emulsified cosmetic composition in which the said component (D) contains 1 type(s) or 2 or more types selected from cetostearyl alcohol and behenyl alcohol. According to any one of claims 1 to 5,
An oil-in-water emulsified cosmetic composition further containing one or two or more selected from L-ascorbic acid 2-glucoside, niacinamide, and tranexamic acids as component (E). According to any one of claims 1 to 6,
The oil-in-water emulsified cosmetics in which the content of the component (D) is less than 10% by mass.