JP6669574B2 - Eyelash and eyebrow cosmetics - Google Patents

Description

  The present invention relates to a cosmetic for eyelashes and eyebrows.

Various studies have been made on makeup cosmetics for adjusting the shape of eyelashes and eyebrows in order to give a good curl-up effect and volume effect to eyelashes and the like and maintain the makeup effect.
For example, Patent Literature 1 describes an oil-in-water makeup cosmetic containing a carboxylic acid having 23 to 100 carbon atoms, a wax ester, and water. Patent Literature 2 discloses a carboxylic acid having a total carbon number of 23 to 100. An oil-in-water makeup cosmetic containing an acid, a resin emulsion, and water is described.

JP 2006-169194 A JP 2006-169195 A

  The present inventor has stated that, when applying mascara to the eyelashes and trying to produce a volume, it is necessary to add a high amount of wax or apply repeatedly, and as a result, it is very difficult to finish beautifully I found an issue.

  TECHNICAL FIELD The present invention relates to a cosmetic for eyelashes and eyebrows, which can give a feeling of volume and can be finished neatly without dripping and without dripping of eyelashes even when applied repeatedly.

  The present inventor uses a high melting point microcrystalline wax as a wax in a specific ratio, and uses three or more specific linear saturated fatty acids in combination, so that the base of the eyelashes and the inner and outer corners of the eyelashes can be painted neatly, The present inventors have found that a cosmetic for eyelashes and eyebrows that does not lump and does not drip eyelashes can be obtained even when applied repeatedly while giving a feeling.

The present invention comprises the following components (A) and (B):
(A) 7-40% by mass of wax solid at 25 ° C.
(B) A cosmetic for eyelashes and eyebrows, comprising a linear saturated fatty acid having 16 to 22 carbon atoms or an alkali salt of the linear saturated fatty acid,
Component (A) contains (A-1) a microcrystalline wax having a melting point of 85 ° C or more,
The mass ratio (A-1) / (A) of the component (A-1) to the component (A) is 0.7 to 1,
In the component (B), at least the linear saturated fatty acid contains (B-1) palmitic acid, (B-2) stearic acid, and (B-3) behenic acid,
In cosmetics, (B-1) palmitic acid, (B-2) stearic acid, (B-3) behenic acid and alkali salts of (B-1), (B-2) and (B-3) The present invention relates to an eyelash / eyebrow cosmetic containing a total of 1 to 8% by mass as an acid.

  The cosmetic for eyelashes and eyebrows of the present invention can be applied evenly and neatly to the base of the eyelashes, the inner and outer corners of the eyelashes, etc. It does not stick to the eyelashes and does not drip.

  The wax of the component (A) used in the present invention is solid at 25 ° C., has a melting point of 40 ° C. or higher and is insoluble in water. Among them, those having a melting point of 60 ° C. or more and 110 ° C. or less are preferable, and one or more kinds selected from animal waxes, vegetable waxes, mineral waxes and synthetic waxes can be used. More specifically, rice bran wax, carnauba wax, candelilla wax, sunflower seed wax, beeswax, ceresin, paraffin wax, microcrystalline wax, polyethylene wax, silicone wax, hydrogenated jojoba oil and the like can be mentioned.

Component (A) contains (A-1) a microcrystalline wax having a melting point of 85 ° C. or more. The melting point of the microcrystalline wax of the component (A-1) can be applied evenly and neatly to the base of the eyelashes, the inner and outer corners of the eyelashes, etc. 86 ° C or higher is preferable, 100 ° C or lower is preferable, and 98 ° C or lower is more preferable, from the viewpoint of preventing the eyelashes from sticking to the eyelashes and preventing the eyelashes from dripping without causing lump.
These waxes can use a commercial item, for example, HNP-0190 (Nippon Seiro), Hi-Mic-1090 (Nippon Seiro), Hi-Mic-2095 (Nippon Seiro), etc. Is mentioned.

The component (A) contains (A-1) a microcrystalline wax having a melting point of 85 ° C. or more, and other waxes can be used alone or in combination of two or more.
The content of the component (A) is at least 7% by mass, preferably at least 11% by mass, and more preferably at least 14% by mass in the whole composition, since the volume of the eyelashes and eyebrows and the point that the composition can be applied uniformly and neatly are excellent. The content is more preferably 40% by mass or less, preferably 34% by mass or less, and more preferably 28% by mass or less. The content of the component (A) is 7 to 40% by mass, preferably 11 to 34% by mass, and more preferably 14 to 28% by mass in the whole composition.

In addition, the content of the component (A-1) can be applied evenly and neatly to the base of the eyelashes, the inner and outer corners of the eyelashes, etc. From the viewpoint of preventing the eyelashes from sticking to the eyelashes and preventing the eyelashes from dripping, 4.9% by mass or more is preferable in the entire composition, 7.7% by mass or more is more preferable, and 9.8% by mass. The content is more preferably 40% by mass or less, more preferably 34% by mass or less, and even more preferably 28% by mass or less. In addition, the content of the component (A-1) is 4.9 to 40% by mass, preferably 7.7 to 34% by mass, and more preferably 9.8 to 28% by mass in the whole composition.
The mass ratio (A-1) / (A) of the component (A-1) to the component (A) can be applied uniformly and neatly to the base of the eyelashes, the inner and outer corners of the eyelashes, etc. It is 0.7 or more, preferably 0.75 or more, preferably 0.8 or more, from the point that it does not lump, adheres firmly to the eyelashes, and suppresses dripping of the eyelashes, even when applied repeatedly, while giving a feeling. The above is more preferable, and 1 or less.

The component (B) used in the present invention is a straight-chain saturated fatty acid having 16 to 22 carbon atoms or an alkali salt of the straight-chain saturated fatty acid, wherein the straight-chain saturated fatty acid is (B-1) palmitic acid, (B-2) ) Stearic acid and (B-3) behenic acid. It may contain a straight-chain saturated fatty acid having 16 to 22 carbon atoms and an alkali salt of the straight-chain saturated fatty acid.
When the mass ratio of the component (B-1) / the component (B-2) / the component (B-3) is set to 100 as the total sum of the acids, even if it is applied repeatedly while giving a voluminous feeling, However, from the viewpoint of firmly adhering to the eyelashes, the ratio is preferably from 20 to 60/20 to 60/20 to 60, and more preferably from 25 to 50/25 to 50/25 to 50.

Examples of the alkali salt of a linear fatty acid include alkali metal salts such as sodium and potassium; organic amine salts such as monoethanolamine, diethanolamine, triethanolamine, aminomethylolpropanol, aminomethylpropanediol, trishydroxymethylaminomethane, and morpholine; And basic amino acid salts such as L-arginine. Among these, from the viewpoint of stability, triethanolamine, aminomethylolpropanol, and aminomethylpropanediol are preferable, and triethanolamine is more preferable.
The alkali salt of a straight-chain fatty acid can be formed by blending a fatty acid and a base and neutralizing the salt in the composition to form a salt.
The neutralization degree of the fatty acid is preferably 0.1 or more, more preferably 0.15 or more, further preferably 0.2 or more, and preferably 1 or less, from the viewpoint that the cosmetic has excellent emulsifying performance and good stability. Preferably, it is 0.8 or less, more preferably 0.6 or less. Further, the neutralization degree of the fatty acid is preferably from 0.1 to 1, more preferably from 0.15 to 0.8, and even more preferably from 0.2 to 0.6.
In the present invention, the degree of neutralization is defined as the ratio of the molar equivalent of the alkali to be neutralized to the molar equivalent of the component (B) linear saturated fatty acid having 16 to 22 carbon atoms.
Degree of neutralization = (molar equivalent of alkali) / (molar equivalent of component (B)).
That is, the degree of neutralization indicates the molar equivalent ratio of alkali to 1 equivalent of component (B).

In the cosmetic of the present invention, (B-1) palmitic acid, (B-2) stearic acid and (B-3) behenic acid and alkalis of (B-1), (B-2) and (B-3). The content of the salt is 1% by mass or more in total as an acid in the entire composition, preferably 2% by mass or more, more preferably 3% by mass or more, and 8% by mass or less, and 7% by mass or less. It is more preferably at most 6% by mass. The contents of (B-1) palmitic acid, (B-2) stearic acid and (B-3) behenic acid and the alkali salts of (B-1), (B-2) and (B-3) are as follows: In the total composition, the total amount of the acid is 1 to 8% by mass, preferably 2 to 7% by mass, more preferably 3 to 6% by mass.
In addition, in trial calculation of the content in the whole composition, when the components (B-1), (B-2), and (B-3) are alkali salts, they are calculated by values converted into fatty acid amounts.

The component (B) contains (B-1) palmitic acid, (B-2) stearic acid and (B-3) behenic acid, and alkali salts of these three fatty acids. It may contain a fatty acid or an alkali salt of a linear fatty acid, and may be used alone or in combination of two or more.
The content of the component (B) is preferably 1% by mass or more in the total composition as an acid from the viewpoint that the cosmetic has excellent emulsifying performance, good stability, excellent eyelash / eyebrow volume, and firm adhesion. 2% by mass or more, more preferably 3% by mass or more, still more preferably 8.9% by mass or less, more preferably 7.8% by mass or less, even more preferably 6.7% by mass or less. Further, the content of the component (B) as an acid is preferably 1 to 8.9% by mass, more preferably 2 to 7.8% by mass, and still more preferably 3 to 6.7% by mass in the whole composition.
In addition, when trially calculating the content in the whole composition, when the component (B) is an alkali salt, the content is calculated by a value converted into a fatty acid amount.

  In the present invention, the mass ratio of the total amount of the component (B-1), the component (B-2) and the component (B-3) to the component (B) as an acid ((B-1) + (B-2) + (B-3)) / (B) is preferably 0.9 or more, more preferably 0.95 or more, and preferably 1 or less from the viewpoint of excellent adhesion to eyelashes. Further, the mass ratio of the total of the components (B-1), (B-2) and (B-3) to the component (B) as the acid ((B-1) + (B-2) + (B -3)) / (B) is preferably from 0.9 to 1, more preferably from 0.95 to 1.

  In the present invention, the mass ratio of the component (A-1) to the sum of the components (B-1), (B-2) and (B-3) as an acid is (A-1) / ((B -1) + (B-2) + (B-3)) can be applied evenly and beautifully to the base of the eyelashes, the inner and outer corners of the eye, etc. Even if it does not lump, from the point of firmly attached to the eyelashes and suppressing dripping of the eyelashes, 1 or more, preferably 2 or more, more preferably 2.5 or more, even more preferably 20 or less, 10 or less is more preferable, and 6.5 or less is still more preferable. Further, the mass ratio of the component (A-1) to the sum of the components (B-1), (B-2) and (B-3) as an acid is (A-1) / ((B-1) + (B-2) + (B-3)) is preferably 1 to 20, more preferably 2 to 10, and even more preferably 2.5 to 6.5.

The eyelash / eyebrow cosmetic of the present invention can further contain (C) a polymer or copolymer of a monomer selected from alkyl acrylates and alkyl methacrylates, which imparts a curling effect and is excellent in cosmetic durability. In addition, eyelashes and eyebrows are less likely to be bundled.
The polymer or copolymer is not particularly limited as long as it is used in ordinary cosmetics, but is mainly composed of a monomer mixture containing a monomer selected from alkyl acrylate and alkyl methacrylate, A copolymer obtained by using as a main component a monomer mixture containing an alkyl acid monomer and / or an alkyl methacrylate monomer and a methacrylic acid and / or an acrylic acid monomer and subjecting them to emulsion polymerization is preferable.
The glass transition temperature (Tg) of the copolymer is preferably −30 ° C. to 100 ° C., and more preferably −20 ° C. to 70 ° C., from the viewpoint of imparting a curling effect and providing excellent cosmetic durability.
As such a copolymer, those having the form of an emulsion containing the copolymer and water can be used, and an alkyl (meth) acrylate copolymer emulsion is preferable. The copolymer content (solid content) in the emulsion is not limited, but is preferably 20 to 60% by mass, and more preferably 25 to 55% by mass.

Further, it is preferable to contain an alkyl (meth) acrylate copolymer having a particle diameter of 10 to 50 nm from the viewpoint of imparting a curling effect, being excellent in keeping makeup, and preventing eyelashes and eyebrows from being easily bundled.
The content of such an alkyl (meth) acrylate copolymer is 0.5% by mass as a solid content in the entire composition, since the curling effect is imparted, the makeup is excellent, and eyelashes and eyebrows are not easily bundled. % Or more, more preferably 1% or more, still more preferably 2% or more, preferably 20% or less, more preferably 12% or less, even more preferably 7% or less. Further, the content of such a copolymer is preferably 0.5 to 20% by mass, more preferably 1 to 12% by mass, and still more preferably 2 to 7% by mass as a solid content in the whole composition.

As the alkyl (meth) acrylate copolymer having a particle diameter of 10 to 50 nm, commercially available products such as iodosol GH256F (particle diameter of 20 to 40 nm; manufactured by Akzo Nobel) can be used.
Further, as an alkyl (meth) acrylate copolymer having a particle diameter exceeding 50 nm, iodozol GH15F (manufactured by Akzo Nobel), iodozol GH34F (manufactured by Akzo Nobel), iodozol GH800F (manufactured by Akzo Nobel), and iodozol GH810F (manufactured by Akzo Nobel) Commercial products such as Nobel Co., Ltd., Daitosol 5000AD (Daito Kasei Kogyo Co., Ltd.) and Daitosol 5000SJ (Daito Kasei Kogyo Co., Ltd.) can be used.
The particle size is preferably 300 nm or less, more preferably 200 nm or less, and even more preferably 150 nm or less.

  As the polymer or copolymer of the component (C), one or more kinds can be used, and the content is excellent in imparting a curling effect, excellent in keeping makeup, and the eyelashes and eyebrows are not easily bundled. As a solid content in the whole composition, it is preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 2% by mass or more, preferably 20% by mass or less, more preferably 12% by mass or less, and 7% by mass. % Is more preferable. Further, the content of the polymer or copolymer of the component (C) is preferably 0.5 to 20% by mass, more preferably 1 to 12% by mass, and more preferably 2 to 7% by mass as a solid content in the whole composition. Is more preferred.

The cosmetic for eyelashes and eyebrows of the present invention further comprises components commonly used in cosmetics, for example, spherical powders such as polymethyl methacrylate powder, nylon powder, silica; white pigments, organic pigments, inorganic pigments, iron oxide, Pigment powders such as carbon black and mica titanium; powders such as bentonite, talc and kaolin, and fibers for enhancing the long rush effect can be contained.
Various powders may be used, for example, those surface-treated with silicone, higher fatty acids, higher alcohols, fatty acid esters, metal soaps, amino acids, alkyl silanes, acrylic silicones, fluorine compounds, or those encapsulated in organic or inorganic microcapsules. be able to.
One or two or more kinds of powders can be used, and it is preferable to contain 1% by mass or more and 10% by mass or less in the whole composition.

  Further, the eyelash / eyebrow cosmetic of the present invention can contain various surfactants. As the surfactant, one or more selected from anionic surfactants, cationic surfactants, nonionic surfactants and amphoteric surfactants can be used.

The eyelash and eyebrow cosmetic of the present invention further comprises water, a water-soluble solvent, a coating agent, an inorganic salt, an ultraviolet absorber, an ultraviolet scattering agent, a humectant, a pigment, a fragrance, an antioxidant, a sequestering agent, and the like. Can be contained.
Examples of the water-soluble solvent include lower alcohols having 1 to 4 carbon atoms; ethers such as ethylene glycol monoethyl ether and diethylene glycol diethyl ether; and carbonates such as ethylene carbonate and propylene carbonate.
Examples of the coating agent include water-soluble polymers such as polyvinyl alcohol, polyvinylpyrrolidone, carboxymethylcellulose, pullulan, sodium polyacrylate, and hydroxyethylcellulose.

The cosmetic for eyelashes and eyebrows of the present invention is preferably an oil-in-water emulsified preparation containing water as a continuous phase, because of its excellent feeling in use, stability of the cosmetic and cleansing properties.
The content of water is preferably from 5 to 85% by mass, more preferably from 15 to 75% by mass, and more preferably from 35 to 65% by mass in the whole composition, from the viewpoint of excellent usability and good stability of the cosmetic. Is more preferred.

  The eyelash / eyebrow cosmetic of the present invention can be produced by uniformly mixing and stirring each component according to a usual method.

  The cosmetic for eyelashes / eyebrows of the present invention can be a mascara, a mascara base, a mascara top coat, a mascara for eyebrows, and the like. Of these, eyelash cosmetics are preferred, and mascara is more preferred.

The eyelash / eyebrow cosmetic of the present invention is a coating tool usually used for mascara and the like, for example, a brush in which fibers are twisted with wires, a comb-shaped coating tool, a coil-shaped coating tool, and a resin molded into a brush shape using a resin. It can be applied using a forming brush or the like.
With respect to the above-described embodiments, the present invention further discloses the following compositions.

Examples 1 to 8, Comparative Examples 1 to 5
The oil-in-water type mascara of the composition shown in Table 1 was manufactured, and "it can be evenly applied to each eyelash", "it can be applied to the eyelashes", "it can be applied to the inner and outer corners", Regarding "volume can be obtained with one coat", "does not lump even if applied repeatedly", "it is firmly attached to eyelashes even if applied repeatedly" and "eyelashes do not drop down even if applied repeatedly" Sensory evaluation was performed. The results are shown in Table 1.

(Production method)
An oil-in-water mascara was manufactured by uniformly stirring and mixing the components.

(Evaluation method)
(1) Ten female panelists applied each oil-in-water type mascara to the eyelashes, "Even one eyelashes can be applied evenly", "Even eyelashes can be applied to the eye area", "Eye and eye corners" `` Even if it is painted, '' `` You can get a volume with one coat '', `` It will not be harmful even if you apply repeatedly '', `` It is firmly attached to the eyelashes even if you apply repeatedly ''"Does not fall down" was evaluated organoleptically according to the following criteria. The results are shown as a total of 10 subjects (maximum 50 points, minimum 10 points).

(1-1) Each eyelash is uniformly applied to each eyelash:
Ease of application during application and visual evaluation after application were evaluated from the viewpoint of whether each eyelash was uniformly applied to each eyelash.
5: Uniformly applied.
4: Painted almost uniformly.
3: It is not applied uniformly.
2: Not evenly applied.
1: Not very evenly applied.

(1-2) Apply to the base of eyelashes:
Ease of application during application and visual evaluation after application were evaluated from the viewpoint of whether the base of the eyelashes was also applied.
5: The base of the eyelashes is also applied.
4: The base of the eyelashes is almost painted.
3: The base of the eyelashes was not painted a little.
2: Not applied to the base of eyelashes.
1: The base of the eyelashes is not very painted.

(1-3) Painted on the inner and outer corners of the eye:
Ease of coating during coating and visual evaluation after coating were evaluated from the viewpoint of whether the coating was applied even at the inner and outer corners of the eye.
5: Painted on the inner and outer corners of the eye.
4: Almost painted on the inner and outer corners of the eyes.
3: Slightly unpainted at the inner and outer corners of the eye.
2: Not painted on the inner and outer corners of the eye.
1: Not very painted on the inner and outer corners of the eyes.

(1-4) Volume can be obtained with one coat:
Evaluation was made from the viewpoint of the ease of dispensing the volume during the coating and the visual evaluation after the coating, and whether or not the volume could be obtained with one coating.
5: Volume can be obtained with one coat.
4: Almost volume can be produced with one coat.
3: The volume cannot be slightly increased with one coat.
2: Volume cannot be obtained with one coat.
1: The volume cannot be increased with one coat.

(1-5) Even if it is applied repeatedly, it will not be harmful:
The finish was easily evaluated during application of the mascara repeatedly applied several times, and visually evaluated after the application.
5: No lumps are obtained even with repeated application.
4: Almost no lumps are obtained even when repeatedly applied.
3: It becomes somewhat lumpy after repeated application.
2: Lapping is caused by repeated coating.
1: It becomes very bad when layered.

(1-6) Even if repeatedly applied, it is firmly attached to the eyelashes:
The mascara was repeatedly applied several times, and the volume was easily obtained during application, and visual evaluation was performed after application, and evaluation was performed from the viewpoint of whether the eyelashes were firmly adhered even after the application was repeated.
5: Firmly adheres to eyelashes even after repeated application.
4: Almost firmly adhered to eyelashes even after repeated application.
3: When applied repeatedly, the eyelashes are not firmly adhered.
2: When applied repeatedly, it is not firmly attached to the eyelashes.
1: When applied repeatedly, it is not very attached to the eyelashes.

(1-7) Eyelashes do not hang down even after repeated application:
Easiness of finishing during application in which the mascara was repeatedly applied several times, and visual evaluation after application, were evaluated from the viewpoint of whether the eyelashes did not drip down even after repeated application.
5: Eyelashes do not hang down even after repeated application.
4: Almost no eyelashes hang down even after repeated application.
3: The eyelashes slightly hang down when repeatedly applied.
2: Eyelashes hang down when applied repeatedly.
1: Eyelash droops very much when applied repeatedly.

Example 9
In the same manner as in Examples 1 to 8, oil-in-water mascaras having the compositions shown in Table 2 were produced. The resulting mascara can be applied evenly and beautifully to the base of the eyelashes, the inner and outer corners of the eyelashes, etc. Is one that does not hang down.

Claims (5)

The following components (A) and (B):
(A) 7-40% by mass of wax solid at 25 ° C.
(B) A cosmetic for eyelashes and eyebrows, comprising a linear saturated fatty acid having 16 to 22 carbon atoms or an alkali salt of the linear saturated fatty acid,
Component (A) contains (A-1) a microcrystalline wax having a melting point of 85 ° C or more,
The mass ratio (A-1) / (A) of the component (A-1) to the component (A) is 0.7 to 1,
In the component (B), at least the linear saturated fatty acid contains (B-1) palmitic acid, (B-2) stearic acid, and (B-3) behenic acid,
In cosmetics, (B-1) palmitic acid, (B-2) stearic acid and (B-3) behenic acid and alkali salts of (B-1), (B-2) and (B-3) An eyelash / eyebrow cosmetic containing a total of 1 to 8% by mass as an acid.   Mass ratio of component (A-1) to the sum of components (B-1), (B-2) and (B-3) as acids (A-1) / ((B-1) + (B The eyelash / eyebrow cosmetic according to claim 1, wherein -2) + (B-3)) is 1 to 20.   The mass ratio ((B-1) + (B-2) + (B-3) of the sum of the components (B-1), (B-2) and (B-3) as the acid to the component (B). The cosmetic for eyelashes and eyebrows according to claim 1 or 2, wherein ()) / (B) is from 0.9 to 1.   In the component (B), the mass ratio of the component (B-1) / the component (B-2) / the component (B-3) is 20 to 60/20 to 60/20 when the total sum as the acid is 100. The cosmetic for eyelashes and eyebrows according to any one of claims 1 to 3, wherein   The eyelash according to any one of claims 1 to 4, further comprising (C) a polymer or copolymer of a monomer selected from alkyl acrylate and alkyl methacrylate in a solid content of 0.5 to 20% by mass. -Eyebrow cosmetics.