JP2018083785A - Sunscreen cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sunscreen cosmetic that is used to protect human hair and/or skin from harmful ultraviolet rays from sunlight, the cosmetic having a good feeling of application (use feeling) and a smooth texture on the hair or skin, and also having excellent washability and dispersibility, the cosmetic free of silicone.SOLUTION: A sunscreen cosmetic for hair and/or skin contains the following components (A)-(E): (A) an ultraviolet absorber that is active in UV-A region, (B) an ultraviolet absorber that is active in UV-B region, (C) a texture modifier, (D) a lower alcohol, and (E) diester oil, while the cosmetic contains no silicone component.SELECTED DRAWING: None

Description

The present invention relates to sunscreen cosmetics, and more particularly to cosmetics used for the purpose of protecting human hair or / and skin from the harmful UV effects from sunlight, and good application on the hair or skin. The present invention relates to a sunscreen cosmetic that does not contain silicone and has a feeling (use feeling) and a smooth feel, and is excellent in cleanability and dispersibility.

In recent years, with the trend of the non-silicon boom in the hair care market, preparations that can perform care without placing a burden on hair have attracted attention. At the same time, non-silicone shampoos have greatly changed the aesthetics of women's hair, and raised questions about the silicones that have been formulated so far, not only for hair but also for beauty-related cosmetics as a whole. became.

On the other hand, in the hair and skin (living body), research on the influence of ultraviolet rays from sunlight has been made for a long time, and the adverse effects on living bodies have been known little by little. For example, it is known that excessive exposure to ultraviolet rays causes skin irritation as an acute disorder, which appears as suntan or sunburn, UV keratitis, immune function decline, etc. It is said that a spot, a sunburst mole, a benign tumor, actinic keratosis, skin cancer, etc. are related. Sunscreen cosmetics have been developed as one means for protecting against the effects of ultraviolet rays on living bodies.

Ultraviolet rays affecting the living body are a kind of so-called solar radiation radiated from the sun, which has a wavelength shorter than the visible light wavelength of 380 to 780 nm and is in an invisible region. As the types of ultraviolet rays, in order from the shortest wavelength, the C region ultraviolet ray (UV-C) has a wavelength range of 200 to 280 nm, the B region ultraviolet ray (UV-B) has a wavelength range of 280 to 315 nm, and the A region ultraviolet ray (UV -A) is classified into three wavelength ranges of 315 to 380 nm. Generally, light has a stronger energy as its wavelength is shorter, but has a property of being refracted when it hits a substance. On the other hand, the longer the wavelength, the easier it is to go straight without refraction. Therefore, ultraviolet rays are known to cause different health effects depending on the wavelength. Since UV-C has a short wavelength, it has a large energy and is the most harmful ultraviolet ray absorbed by the DNA of living organisms, but does not reach the earth's surface because it is strongly absorbed by atmospheric oxygen and ozone. UV-B is strongly absorbed by the ozone layer 20 to 50 km above the ground, and part of it reaches the ground surface. It is called “harmful ultraviolet rays” because it is absorbed by the surface of the skin, causing sunburn and causing diseases such as skin cancer and cataracts. Since UV-A is hardly absorbed in the atmosphere, it reaches almost 100% of the ground. Since the wavelength is long, it penetrates deep into the skin, causing spots and freckles.

Many sunscreen cosmetics have been developed for the purpose of protecting the skin and hair from the above effects from ultraviolet rays. For example, gels containing organic UV screening agents, N-acyl amino acid esters and specific polyamides have been developed. A cosmetic composition or a dermatological composition has been proposed that has a feature that can restrict the movement of the composition on the skin surface during use (for example, Patent Document 1). However, structuring as a technique generally used to stabilize poorly soluble substances including UV absorbers can increase the stability of the preparation itself and after application in use. Limitations come out in the above constraints and feel adjustments.

A number of compositions characterized by the combination of UV blocking agents and various polymers have been developed (for example, Patent Document 2), and these compositions are provided in oil-in-water or water-in-oil type emulsions. It is said that it has long-term stability and water resistance, but even if the water resistance is good, the feeling of use on both the skin and hair is not always good, and consumers are not good at stretching and water resistance. Although it is good in nature, it often gives an unpleasant impression such as stickiness on the hair.

Moreover, the sprayable composition which combined the oil component, the emulsifier, the insoluble powder, the organic clay, the polar ester, and the lower alcohol at a specific blending ratio is disclosed (for example, Patent Document 3). However, because it contains silicone as an oil component, it has high usability and good effects, but consumers are concerned about the use of silicone. It wasn't.

Therefore, it is a cosmetic used for the purpose of protecting human hair or / and skin from the harmful ultraviolet rays from sunlight, and has a good application feeling (use feeling) and smooth feel on the hair or skin, There has been a strong demand for the development of a sunscreen cosmetic that is excellent in detergency and dispersibility and does not contain silicone.

International Publication No. 2003/039447 International Publication No. 2010/043588 Japanese Patent No. 3968125

  In view of the above situation, the present invention is a cosmetic used for the purpose of protecting human hair or / and skin from the harmful effects of ultraviolet rays from sunlight. ) And a smooth feel, excellent in cleanability and dispersibility, and is intended to provide a sunscreen cosmetic containing no silicone.

  In order to achieve the above object, the present invention has been made through extensive research. As a result, in sunscreen cosmetics, an effective amount of an ultraviolet absorber, a touch modifier, a lower alcohol, and an ester oil are combined at a specific blending ratio. As a result, the inventors have found that the above problem can be solved, and completed the present invention.

1st invention of this application contains the following component (A)-(E),
(A) Ultraviolet absorber active in the UV-A region (B) Ultraviolet absorber active in the UV-B region (C) Touch modifier (D) Lower alcohol (E) Diester oil and component (A) and component ( The mass ratio (C) / (A + B) of the component (C) to the total mass of B) is 0.05 to 0.6, and the total of the component (A) and the component (B) with respect to the mass of the component (E) Mass ratio (A + B) / (E) is 0.3 to 1.7, and mass ratio (C) / (E) of component (C) to mass of component (E) is 0.05 to 0.00. 5. A sunscreen cosmetic for hair and / or skin, characterized in that it is contained at a blending ratio of 5 and does not contain a silicone component.

A second invention of the present application is the sunscreen cosmetic according to the first invention of the present application, wherein the feel control agent of the component (C) is solid.

The third invention of the present application is the sunscreen cosmetic according to the first invention of the present application or the second invention of the present application, wherein the component (C) is nylon.

A fourth invention of the present application is the sunscreen cosmetic according to any one of the first to third inventions, wherein the sunscreen cosmetic is an aerosol type.

According to a fifth invention of the present application, the component (A) is one or more selected from hexyl diethylaminohydroxybenzoyl benzoate and bisethylhexyloxyphenol methoxyphenyl triazine. The sunscreen cosmetic according to any one of the above.

According to a sixth invention of the present application, the component (B) is one or more selected from ethylhexyltriazone, ethylhexyl methoxycinnamate, and bisethylhexyloxyphenol methoxyphenyltriazine. The sunscreen cosmetic according to any one of the inventions.

  According to the present invention, in a cosmetic used for the purpose of protecting human hair or / and skin from the harmful UV rays from sunlight, the hair or skin has a good application feeling (use feeling) and smooth feel. Therefore, it is possible to provide a sunscreen cosmetic that has excellent detergency and dispersibility and does not contain silicone.

  Hereinafter, the sunscreen cosmetic of the present invention will be described in detail.

  The sunscreen cosmetic of the present invention can be obtained by combining a UV absorber, a touch modifier, a lower alcohol and a diester oil in a specific blending ratio.

  The ultraviolet absorber active in the UV-A region, which is the component (A) of the present invention, is not particularly limited, but is an ultraviolet absorber exhibiting absorption characteristics in a wavelength region of 315 to 380 nm contained in ultraviolet rays. Such components are commercially available. For example, hexyl diethylaminohydroxybenzoyl benzoate (Ubinal A Plus Granular, manufactured by BASF Japan), t-butylmethoxybenzoylmethane (Ortholex 9020, manufactured by Merck), bisethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S, manufactured by BASF Japan) Among them, diethylaminohydroxybenzoyl hexyl benzoate and bisethylhexyloxyphenol methoxyphenyl triazine can be preferably used.

Although the compounding ratio of the component (A) of the present invention is not particularly limited, it is appropriately determined, and one or two or more of them may be combined, and an effective amount is preferable.
Of the ultraviolet rays, a PA index (abbreviation for protection grade of UVA) is adopted and generally used in Japan as an index representing the degree of the effect of blocking UV-A waves (wavelengths of 315 to 380 nm). The PA index is preferably + (effective), more preferably PA ++ or more. If it is not PA +, the sunscreen effect is poor and undesirable.

The ultraviolet absorber active in the UV-B region, which is the component (B) of the present invention, is not particularly limited, but is an ultraviolet absorber exhibiting absorption ability in a short wavelength region of 280 to 315 nm contained in ultraviolet rays. . Such components are commercially available and known ones can be obtained. For example, phenylbenzimidazole sulfonic acid (Ortholex 232, manufactured by Merck), Octocrylene (Ortholex OCR, manufactured by Merck), ethylhexyl methoxycinnamate (Ubinal MC80, 80N, manufactured by BASF Japan; Parasol MCX, DSM Nutrition Japan, Inc.) Manufactured), ethylhexyltriazone (Ubinal T150, manufactured by BASF Japan), bisethylhexyloxyphenol methoxyphenyltriazine (Tinosorb)
S, manufactured by BASF Japan Ltd.), among which ethylhexyl methoxycinnamate, ethylhexyltriazone, bisethylhexyloxyphenol methoxyphenyltriazine can be preferably used.

Although the compounding ratio of the component (B) of the present invention is not particularly limited, it is determined as appropriate, and one or more of them may be combined, and an effective amount is preferable. Among ultraviolet rays, the SPF value (acronym for Sun Protection Factor) is generally used as an index indicating the degree of the effect of blocking UV-B waves (wavelength 280 to 315 nm). SPF is based on the measurement after applying 2 mg of product per 1 cm ² to the skin. The SPF value is preferably 5 or more, and more preferably 25 or more. When the SPF value is 5 or less, the sunscreen effect is poor, which is not desirable.

The feel control agent which is the component (C) of the present invention is not particularly limited, but is a component effective for feel control, such as a polymer compound, an oil component, a moisturizing component, and a powder. It is done. Among them, solid powders can be preferably used, and examples thereof include talc, mica, nylon powder, silk powder, polyethylene powder, and PMMA powder. More preferably, nylon powder can be used.

The compounding of the component (C) of the present invention may be one or a combination of two or more, preferably 0.1 to 10% by mass in the cosmetic (in the case of an aerosol, in the stock solution), more preferably 1 to 5% by mass. If the blending amount is less than 0.1% by mass, it may not be fully satisfactory in terms of touch when applied to the skin or hair, and if the blending amount exceeds 10% by mass, the dispersibility and dissolution of the formulation It is not desirable because it may deteriorate the performance.

Specific examples of the lower alcohol which is the component (D) of the present invention include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like, and ethanol is particularly preferable. The blending amount of the lower alcohol is usually 20% or more, preferably 40% or more based on the total amount of the cosmetic. This range is preferable because the effects of the present invention can be exhibited in the dispersibility and solubility of the preparation.

The diester oil which is the component (E) of the present invention includes a diester oil having two ester groups in the molecule, a diester oil obtained from a dibasic acid optionally having a hydroxyl group and a monohydric alcohol, or a molecule. Examples include diester oils obtained from polyhydric alcohols having 2 or more, preferably 2 to 12, more preferably 2 to 4 hydroxyl groups, and monobasic acids, such as neopentyl glycol dicaprate, apple Diisostearyl acid, di-2-ethylhexyl succinate, neopentyl glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, di-2-heptyl undecyl adipate, di-2-ethylhexyl sebacate, diisostearyl malate, Diglyceryl diisostearate, bisethoxydiglycol cyclohexanedicarboxylate Le diisostearate decaglyceryl and propylene glycol dicaprylate. Among them, in particular, propylene glycol dicaprylate can be preferably used.

One or two or more components (E) of the present invention may be appropriately combined, and the blending amount thereof is preferably 10 to 50% by mass in the cosmetic (in the case of an aerosol, in the stock solution). When the blending amount is less than 10% by mass, the dispersibility and solubility of the preparation may be deteriorated, and when the blending amount exceeds 50% by mass, the touch when applied to the skin and hair may be deteriorated. This is not desirable.

The blending ratio of the components (A), (B), (C) and (E) of the present invention is preferably the mass ratio (C) of the component (C) to the total mass of the components (A) and (B). / (A + B) is 0.05 to 0.6, and the total mass ratio (A + B) / (E) of the component (A) and the component (B) to the mass of the component (E) is 0.3 to The mass ratio (C) / (E) of the component (C) to the mass of the component (E) is in the range of 0.05 to 0.5. This range is desirable because the effects of the present invention can be exhibited in the feel upon application to the skin and hair and the dispersibility and solubility of the preparation.

Embodiments of the sunscreen cosmetic of the present invention are not particularly limited, but are used in the form of lotion, liquid, gel, mist / spray, liquid, solid, oil, foam, etc. be able to. Among them, it is particularly preferable to use an aerosol type mist / spray type. In the case of an aerosol type, the adjustment of the injection amount varies depending on the composition of the aerosol stock solution, the mixing ratio with the propellant, the shape of the injection button nozzle However, it can be performed mainly by appropriately adjusting the valve hole diameter (stem hole diameter, housing hole diameter) and the hole diameter of the injection button, and can be manufactured by a conventional method.

Furthermore, as long as the same effect in the present invention is not impaired, an ingredient selected from amino acids, extract extracts, antibacterial agents, antioxidants, vitamins, and fragrances can be contained. For example, the amino acid and / or salt thereof is not particularly limited as long as it is an amino acid that can be usually used in cosmetics and the like. Specifically, glycine, leucine, lysine HCl, glutamic acid, histidine HCl, serine, valine, aspartic acid. Examples thereof include Na, threonine, alanine, isoleucine, L-cysteine, L-cystine, L-tyrosine, L-tryptophan, L-methionine, L-phenylalanine, and salts thereof. Examples of antibacterial agents include paraoxybenzoate An acid ester, phenoxyethanol, etc. are mentioned, and can be used alone or in combination of two or more as required.

EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, the technical scope of this invention is not limited by these Examples. In addition, about the cosmetics as described in an Example and a comparative example, the test method regarding the touch and feeling (sensory evaluation) at the time of application | coating on the hair or skin of a formulation, solubility, and a dispersibility is shown below.

[Feel and feel when applied to skin]
The cosmetics shown in the examples and comparative examples were used on the skin for five specialized panels, a sensory test was conducted on the feeling of use at that time, and evaluation was performed according to the following criteria.

<Criteria>
◎: More than 4 panelists have no stickiness and good usability ○: More than 3 panelists have no stickiness and feel good △: More than 2 panelists have no stickiness and feel good Judgment ×: 4 or more panels judged to be sticky and have poor usability

[Feel and feel when applied to hair]
The cosmetics shown in the examples and comparative examples were used for 5 specialized panels, and the sensory test was performed on the feeling of use at that time, and the evaluation was performed according to the following criteria.

<Criteria>
◎: More than 4 panelists have no stickiness and good usability ○: More than 3 panelists have no stickiness and feel good △: More than 2 panelists have no stickiness and feel good Judgment ×: 4 or more panels judged to be sticky and have poor usability

[Solubility]
After adjusting the cosmetics shown in Examples and Comparative Examples, the solubility of the preparation was visually confirmed based on the following criteria.

<Criteria>
◯: Good solubility and uniform overall △: Good solubility and uniform overall, but relatively fast separation ×: Poor solubility and overall not uniform

[Dispersibility]
After adjusting the cosmetics shown in Examples and Comparative Examples, the dispersibility of the preparations was evaluated by the following methods. After filling the aerosol stock solution and gas, shake it up and down several times with a constant force and leave it for a certain time. Thereafter, it was shaken up and down several times with a constant force, and the dispersibility of the preparation at that time was visually confirmed based on the following criteria.

<Criteria>
○: Dispersibility is good and the whole becomes uniform with a slight force, and remains in that state for a while Δ: Dispersibility is good and the whole becomes uniform with a slight force, but separation is relatively fast ×: Dispersion It is not good and the whole is not uniform

Examples 1 to 11 and Comparative Examples 1 to 6 (spray type sunscreen cosmetics)
The cosmetics shown in Table 1 were prepared by a conventional method, and the feel / use feeling (sensory evaluation) at the time of application on hair or skin was evaluated, and the solubility and dispersibility were evaluated. The results are also shown in Table 1 and Table 2. It was.

As is clear from Tables 1 and 2, the sunscreen cosmetics of the examples according to the present invention all exhibited superior performance as compared with the comparative examples.

Hereinafter, other prescription examples of the cosmetic of the present invention will be given as examples. In addition, for the cosmetics of these examples, each item was examined with respect to the feel / use feeling (sensory evaluation), solubility and dispersibility at the time of application on the above-mentioned preparation hair or skin. Also had excellent properties and was good.

Example 12 Spray type sunscreen agent <stock solution> Blending amount (mass%)
(1) Ethanol 45
(2) Dicaprylic acid PG 25
(3) Diethylaminohydroxybenzoyl hexyl benzoate 2
(4) Ethylhexyl methoxycinnamate 15
(5) Ethylhexyltriazone 5
(6) Vegetable oil 2
(7) Nylon 5
(8) Bisethylhexyloxyphenol methoxyphenyl triazine 1
<Gas>
(9) LPG
<Filling>
Stock solution / LPG 35/65

(Production method) (1) to (8) were mixed and dissolved uniformly, and filled in a container together with (9) to prepare a cosmetic.

Example 13 Foam sunscreen <stock solution> Blending amount (mass%)
(1) Ethanol 30
(2) Cyclohexanedicarboxylic acid bisethoxydiglycol 18
(3) Diethylaminohydroxybenzoyl hexyl benzoate 5
(4) Ethylhexyl methoxycinnamate 15
(5) Ethylhexyl triazone 2
(6) Foaming agent 3
(7) Organic Argan Oil 3
(8) Camellia oil 1
(9) Arginine 0.05
(10) Glutamic acid 0.05
(11) Plant extract 0.5
(12) Nylon-12 2
(13) Remaining water <Gas>
<Propellant>
(14) Liquefied gas <filling>
Stock solution / liquefied gas

80/20
(Production method) (1) to (13) were uniformly mixed and dissolved, and filled in a container together with (14) to prepare a foam sunscreen.

Claims (6)

Contains the following components (A) to (E),
(A) Ultraviolet absorber active in the UV-A region (B) Ultraviolet absorber active in the UV-B region (C) Touch modifier (D) Lower alcohol (E) Diester oil and component (A) and component ( The mass ratio (C) / (A + B) of the component (C) to the total mass of B) is 0.05 to 0.6, and the total of the component (A) and the component (B) with respect to the mass of the component (E) Mass ratio (A + B) / (E) is 0.3 to 1.7, and mass ratio (C) / (E) of component (C) to mass of component (E) is 0.05 to 0.00. A sunscreen cosmetic for hair and / or skin, which is contained at a blending ratio of 5 and does not contain a silicone component. The sunscreen cosmetic according to claim 1, wherein the feel control agent of component (C) is solid. The sunscreen cosmetic according to claim 1 or 2, wherein the component (C) is nylon. The sunscreen cosmetic according to any one of claims 1 to 3, wherein the sunscreen cosmetic is an aerosol type. The sunscreen cosmetic according to any one of claims 1 to 4, wherein the component (A) is at least one selected from hexyl diethylaminohydroxybenzoylbenzoate and bisethylhexyloxyphenol methoxyphenyltriazine. The sunscreen makeup according to any one of claims 1 to 5, wherein the component (B) is at least one selected from ethylhexyltriazone, ethylhexyl methoxycinnamate, and bisethylhexyloxyphenol methoxyphenyltriazine. Fee.