JP7103801B2 - Eyelash cosmetics - Google Patents

Description

The present invention relates to eyelash cosmetics.

The mascara is applied to the lashes or the lashes that have been curled upward with an eyelash curler, and further, the lashes are lifted with a brush and the mascara liquid is repeatedly applied to curl the lashes. After application, it is dried at room temperature to complete, but after completion, the shape of the eyelashes is fixed with a mascara film, and the curled state is maintained.

Conventionally, various eyelash cosmetics having a high curl effect and a curl-sustaining effect have been studied in eyelash cosmetics such as mascara.
For example, in Patent Document 1, eyelash cosmetics containing a film-forming agent containing a copolymer containing at least one of methyl methacrylate, methacrylic acid, or acrylic acid and urethane acrylate as a monomer unit are applied to the eyelashes. It is described that it is sticky and has an excellent cosmetic effect that curls the eyelashes upward and makes the eyes stand out. Patent Document 2 includes oil-in-water eyebrows cosmetics containing an alkyl acrylate / vinyl acetate copolymer emulsion, an alkyl acrylate copolymer emulsion, carbon black, a polyhydric alcohol, and a water-soluble film-forming agent. , It is described that it is excellent in gloss and blackness that impresses the eyes, cleansing property, and storage stability.

JP-A-2009-46517 Japanese Unexamined Patent Publication No. 2010-77042

Conventional eyelash cosmetics are easily broken by sweat, tears, etc., and when removed by washing, the curl effect is reduced. In addition, the next day, the curl effect decreased, so it was necessary to repeat it every day.

The present inventor has used one or more selected from hydroxymonocarboxylic acid, hydroxydicarboxylic acid, aromatic sulfonic acid and salts thereof in combination with a film-forming agent, wax and a nonionic surfactant. It was found that the cosmetic had a high curling effect on the eyelids immediately after application, the curling lasted for a long time, and the curling persisted even after cleansing and the next morning.

In the present invention, the following components (A), (B), (C) and (D):
(A) One or more selected from hydroxymonocarboxylic acid, hydroxydicarboxylic acid, aromatic sulfonic acid and salts thereof,
(B) Film forming agent 0.1 to 50% by mass,
(C) Solid wax at 25 ° C. 0.1-40% by mass,
(D) Nonionic surfactant 0.1 to 20% by mass
Concerning eyelash cosmetics containing.

The present invention also relates to a method for maintaining the curl shape of the eyelashes by applying the cosmetic for eyelashes to the eyelashes and then curling the entire eyelashes using an eyelash curl device.
The present invention also relates to a method of maintaining the curl shape of the eyelashes by applying the eyelash cosmetics to the eyelashes after curling the entire eyelashes using an eyelash curl device.

The eyelash cosmetic of the present invention has a high curling effect on the eyelashes immediately after application, and the curling lasts for a long time, and the curling lasts even after cleansing or the next morning.

The component (A) used in the present invention is selected from hydroxymonocarboxylic acid, hydroxydicarboxylic acid, aromatic sulfonic acid and salts thereof.
Examples of the hydroxymonocarboxylic acid include lactic acid, glycolic acid, hydroxyacrylic acid, oxyfatty acid, glyceric acid and the like, and lactic acid is particularly preferable. Examples of the hydroxydicarboxylic acid include malic acid and tartaric acid, with malic acid being preferable.
Examples of the aromatic sulfonic acid include 2-naphthalene sulfonic acid containing one or more aromatic rings, oxybenzone sulfonic acid, guaiazulene sulfonic acid and the like, and 2-naphthalene sulfonic acid is preferable.
The component (A) may be these salts, and examples of the counter ion include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium.

As the component (A), lactic acid and malic acid are used because they enhance the penetration into the inside of the eyelid, strengthen the habit of the eyelid, improve the curl effect, excel in the start-up of the upper eyelid, and maintain the effect. , Tartaric acid, 2-naphthalene sulfonic acid and salts thereof are preferably one or more, and one or two selected from malic acid and sodium 2-naphthalene sulfonic acid are more preferable.

In the eyelash cosmetics, the content of the component (A) enhances the penetration into the inside of the eyelashes, strengthens the habit of the eyelashes, excels in the start-up of the upper eyelashes, and keeps the effect as an acid. In the total composition, 0.05% by mass or more is preferable, 0.1% by mass or more is more preferable, 0.2% by mass or more is further preferable, 50% by mass or less is preferable, and 15% by mass or less is more preferable. More preferably, it is by mass or less. The content of the component (A) as the acid is preferably 0.05 to 50% by mass, more preferably 0.1 to 15% by mass, and even more preferably 0.2 to 10% by mass in the total composition.
When hydroxymonocarboxylic acid or hydroxydicarboxylic acid is used as the component (A), the content of the acid is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and 50% by mass in the total composition. % Or less is preferable, and 10% by mass or less is more preferable.
When aromatic sulfonic acid is used as the component (A), the content of the acid is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, and preferably 10% by mass or less in the total composition. 5, 5% by mass or less is more preferable.

The film-forming agent of the component (B) is used in ordinary cosmetics, and is, for example, trimethylsiloxysilicic acid, partially crosslinked organopolysiloxane, trimethylsiloxysilylpropylcarbamide acid, fluorine-modified silicone, acrylic-modified silicone, silicone. Silicone-based resins such as dendrimer-modified resin compounds; Logonic acid-based resins such as pentaerythlit rosinate and glyceryl roserate; candelilla resins; polyacrylic resins such as alkyl acrylate copolymers and alkyl acrylate / vinyl acetate copolymers; polyvinyl isobutyl Examples include ether and polyisobutylene.

Of these, the component (A) hydroxymonocarboxylic acid, hydroxydicarboxylic acid, and aromatic sulfonic acid are stored inside the eyebrows and uniformly cover the surface of the eyelids, which is excellent in the effect of curling the upper eyelids. One or more selected from trimethylsiloxysilicate, alkyl acrylate copolymer, alkyl acrylate / vinyl acetate copolymer because the shape can be maintained for a long time and the curl shape can be maintained after washing or until the next day. Is preferable.

The component (B) can be used alone or in combination of two or more, and the content is such that the hydroxymonocarboxylic acid, hydroxydicarboxylic acid and aromatic sulfonic acid of the component (A) are stored inside the eyebrows. From the viewpoint of uniformly covering the surface of the eyelids, 0.1% by mass or more, preferably 4% by mass or more, more preferably 8% by mass or more, 50% by mass or less, and 40% by mass or less in the entire composition. Is preferable, and 35% by mass or less is more preferable. The content of the component (B) is 0.1 to 50% by mass, preferably 4 to 40% by mass, and more preferably 8 to 35% by mass in the total composition.

In the present invention, the mass ratio (B) / (A) of the component (B) to the component (A) is excellent in the effect of curling the upper eyelashes, the curl shape is maintained for a long time, and the curl is maintained after washing or until the next day. From the viewpoint of sustaining the shape, 5 or more is preferable, 10 or more is more preferable, 15 or more is further preferable, 500 or less is more preferable, 400 or less is more preferable, and 300 or less is further preferable. The mass ratio (B) / (A) of the component (B) to the component (A) is preferably 5 to 500, more preferably 10 to 400, and even more preferably 15 to 300.

The component (C) is a wax that is solid at 25 ° C., and it is possible to obtain a voluminous feeling of eyelashes and a higher curl effect.
The wax preferably has a melting point of 60 to 110 ° C., and animal wax, vegetable wax, mineral wax, synthetic wax and the like can be used.
Specific examples thereof include rice bran wax, carnauba wax, candelilla wax, sunflower seed wax, beeswax, selecin, paraffin wax, microcrystalline wax, polyethylene wax, silicone wax, and hydrogenated jojoba oil. Of these, those containing at least one or more of paraffin wax and microcrystalline wax are preferable from the viewpoint of uniformly adhering to the surface of the eyelashes while maintaining the volume feeling of the eyelashes.

The wax of the component (C) can be used alone or in combination of two or more, and the content is 0.1% by mass or more in the total composition and has a mass of 5 from the viewpoint of increasing the curl effect. % Or more is preferable, 10% by mass or more is more preferable, 40% by mass or less, 35% by mass or less is preferable, and 30% by mass or less is more preferable. The content of the component (C) is 0.1 to 40% by mass, preferably 5 to 35% by mass, and more preferably 10 to 30% by mass in the total composition.

In the present invention, the mass ratio of the total contents of the components (B) and (C) to the component (A) ((B) + (C)) / (A) is excellent in the effect of curling the upper eyelids, and the curl thereof. From the viewpoint that the shape can be maintained for a long time and the curl shape can be maintained after washing or until the next day, 6 or more is preferable, 10 or more is more preferable, 20 or more is further preferable, 1500 or less is preferable, and 1200 or less is more preferable. It is preferable, and 900 or less is more preferable. The mass ratio ((B) + (C)) / (A) of the total contents of the components (B) and (C) to the component (A) is preferably 6 to 1500, more preferably 10 to 1200. 20 to 900 is more preferable.

The nonionic surfactant of the component (D) can be used without limitation as long as it can stably emulsify when it is used as an emulsified cosmetic.
Examples of the nonionic surfactant include glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, sorbitol fatty acid ester, sucrose fatty acid ester, and polyoxyalkylene alkyl. Examples thereof include ether, glycerin alkyl ether, polyoxyethylene hydrogenated castor oil, alkylene glycol adduct of lanolin, polyoxyalkylene alkyl ether co-modified silicone, monofatty acid polyethylene glycol and the like.
Among these, one or more of polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester, and monofatty acid polyethylene glycol are contained from the viewpoint of excellent emulsion stability and excellent adhesion to eyelids. preferable.

As the nonionic surfactant of the component (D), those of HLB 4 to 10 are preferable in the case of W / O type emulsified cosmetics, and those of HLB 11 to 18 are preferable in the case of O / W type emulsified cosmetics. ..
The HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion of the total molecular weight of the surfactant, and the nonionic surfactant is Griffin. ) Is obtained by the formula.
The HLB of a mixed surfactant composed of two or more types of nonionic surfactants is obtained as follows. The HLB of the mixed surfactant is a phase-added average of the HLB values of each nonionic surfactant based on the blending ratio.

Mixed HLB = Σ (HLBx × Wx) / ΣWx
HLBx indicates the HLB value of the nonionic surfactant X.
Wx indicates the weight (g) of the nonionic surfactant X having a value of HLBx.

As the nonionic surfactant of the component (D), one kind or two or more kinds can be used, and the content is 0.1% by mass or more in the total composition from the viewpoint of excellent emulsion stability, and is 0. .2% by mass or more is preferable, 1% by mass or more is more preferable, 20% by mass or less, 5% by mass or less is preferable, and 4% by mass or less is more preferable. The content of the component (D) is 0.1 to 20% by mass, preferably 0.2 to 5% by mass, and more preferably 1 to 4% by mass in the total composition.

The cosmetic for eyelids of the present invention further contains (E) glycol from the viewpoint of enhancing the penetration of hydroxymonocarboxylic acid, hydroxydicarboxylic acid and aromatic sulfonic acid into the eyelids and enhancing the habit of the eyelids. It is preferable to do so. :
The glycol is used in ordinary cosmetics and preferably has a molecular weight of 62 to 1800. For example, ethylene glycol (molecular weight 62), propylene glycol (molecular weight 76), butylene glycol (molecular weight 90), diethylene glycol (molecular weight). 106), dipropylene glycol (molecular weight 134), polypropylene glycol having a molecular weight of 192 to 1800 (molecular weight 3 to 30), and the like can be mentioned.
Of these, one or more selected from butylene glycol and dipropylene glycol are preferable from the viewpoint of enhancing the penetration of hydroxymonocarboxylic acid, hydroxydicarboxylic acid and aromatic sulfonic acid into the eyelids.

The glycol of the component (E) can be used alone or in combination of two or more, and the content in the cosmetics for eyelids is the permeation of hydroxymonocarboxylic acid, hydroxydicarboxylic acid and aromatic sulfonic acid into the eyelids. From the viewpoint of increasing, 0.01% by mass or more is preferable, 0.1% by mass or more is more preferable, 0.2% by mass or more is further preferable, 20% by mass or less is preferable, and 12% by mass or less is preferable in the total composition. More preferably, 6% by mass or less is further preferable. The content of the component (E) is preferably 0.01 to 20% by mass, more preferably 0.1 to 12% by mass, and even more preferably 0.2 to 6% by mass in the total composition.

The eyelash cosmetics of the present invention are preferably emulsified, and can be either W / O emulsified cosmetics or O / W emulsified cosmetics.

In the present invention, the content of (F) water is preferably 1 to 60% by mass in the total composition. In the case of W / O type emulsified cosmetics, 1 to 40% by mass is preferable, and 2 to 20% by mass is more preferable in the total composition. In the case of O / W type emulsified cosmetics, 10 to 60% by mass is preferable, and 15 to 45% by mass is more preferable in the total composition.

In addition to the above-mentioned ingredients, the eyebrows cosmetics used in the present invention include ingredients used in ordinary cosmetics, such as thickeners, oils, inorganic salts, powders, fibers, ultraviolet absorbers, ultraviolet scattering agents, and moisturizers. It can contain dyes, fragrances, antioxidants, metal ion sequestering agents and the like.

The cosmetic for eyelids used in the present invention is water because it enhances the penetration of hydroxymonocarboxylic acid, hydroxydicarboxylic acid and aromatic sulfonic acid into the eyelids, enhances the habit of the eyelids, and improves the curl effect. The pH of the phase is preferably 2-9, more preferably 3-6.
In the case of W / O type emulsified cosmetics, pH 2 to 7 is preferable, and pH 3 to 6 is more preferable. Further, in the case of O / W type emulsified cosmetics, pH 6 to 9 is preferable, and pH 7 to 9 is more preferable.
In the present invention, the pH is measured by the pH (25 ° C.) when the aqueous phase of the eyelash cosmetic is diluted with 20% by mass of water.

A pH regulator can be used to bring the pH into the above range.
As the pH adjuster, those used in ordinary cosmetics, for example, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; ammonium; monoethanolamine, diethanolamine, triethanolamine, aminomethylpropanol and the like. Alkanolamine; Bases such as basic amino acids such as arginine and lysine: Inorganic acids such as hydrochloric acid and phosphoric acid, and acids such as organic acids other than the component (A) can be used.
It is preferable to adjust the pH of the aqueous phase to the above range by using such a pH adjuster.

The cosmetic for eyelashes of the present invention can be produced by uniformly mixing and stirring each component according to a usual method.
The cosmetic for eyelashes of the present invention can be applied as a beauty essence for eyelashes, a mascara base, mascara and the like.

The cosmetic for eyelashes of the present invention can maintain the curl shape of the eyelashes by curling the entire eyelashes using an eyelash curl device after applying the cosmetics to the eyelashes. Further, by curling the entire eyelashes using an eyelash curling device and then applying the cosmetic for eyelashes of the present invention to the eyelashes, the curl shape of the eyelashes can be maintained.
In any case, the cosmetic for eyelashes of the present invention is a brush obtained by twisting fibers usually used for mascara with a wire, a coating tool such as a comb shape or a coil shape, and a resin molding formed into a brush shape using a resin. It can be applied to the eyelashes using an application tool such as a brush.
The eyelash curler is a fixed arch formed in an arch shape, an arch-shaped movable arch that moves forward and backward with respect to the fixed arch according to the opening and closing of the handle portion, and an elastic body fixed to the movable arch. The eyelashes are sandwiched and curled by the fixed arch and the elastic body.

By using the eyelash cosmetic of the present invention, the curl shape of the eyelashes can be maintained for a long time, and the curl shape is maintained even after washing the eyelash cosmetics such as mascara and until the next morning, so that the curl shape is used repeatedly every day. It is not necessary to do this, and by using it repeatedly, the curl effect and its lasting effect can be further enhanced.

Examples 1 to 13 and Comparative Example 1 (water-in-oil mascara)
A water-in-oil mascara having the composition shown in Table 1 was produced, and the curl effect of the upper eyelashes, the curl duration after 5 hours, the curl duration after cleansing, and the curl duration the next morning were evaluated. The results are also shown in Table 1.

(Production method)
The components (A), (E), (F) and aqueous phase components having the compositions shown in Table 1 are uniformly mixed at 80 ° C. to prepare an aqueous phase. Next, the components (B), (C), (D) and other components are uniformly mixed at 105 ° C. and stirred and cooled to 70 ° C. An aqueous phase is added thereto, and the mixture is stirred and cooled to room temperature. By degassing this, a water-in-oil mascara was produced.

(Evaluation method)
(1) Curl effect of upper eyelashes:
Immediately after curling the entire eyelashes using an eyelash curler, five expert evaluators applied water-in-oil mascara to the upper eyelashes and visually observed the condition immediately after that to evaluate the degree of upward eyelashes. .. The result is shown by the integrated value of 5 people.
5: The upper eyelashes are facing upwards.
4: The upper eyelashes are facing up.
3: The upper eyelashes are slightly upward.
2: The upper eyelashes do not turn up very much.
1: The upper eyelashes do not turn upward.

(2) Curl duration after 5 hours:
Immediately after the entire eyelashes were curled using an eyelash curler, five expert evaluators applied water-in-oil mascara to the upper eyelashes and visually observed the condition after 5 hours to determine the degree of upward eyelashes. evaluated. The result is shown by the integrated value of 5 people.
5: The upper eyelashes are facing upwards.
4: The upper eyelashes are facing up.
3: The upper eyelashes are slightly upward.
2: The upper eyelashes do not turn up very much.
1: The upper eyelashes do not turn upward.

(3) Persistence of curl after cleansing:
Immediately after the entire eyelashes were curled by five professional evaluators using an eyelash curler, water-in-oil mascara was applied to the upper eyelashes, and after 5 hours, the eyelashes were washed with makeup remover and dried. Visual observation was performed to evaluate the degree of upward eyelashes. The result is shown by the integrated value of 5 people.
5: The upper eyelashes are facing upwards.
4: The upper eyelashes are facing up.
3: The upper eyelashes are slightly upward.
2: The upper eyelashes do not turn up very much.
1: The upper eyelashes do not turn upward.

(4) Continued curl the next morning:
Immediately after the entire eyelashes were curled by five professional evaluators using an eyelash curler, water-in-oil mascara was applied to the upper eyelashes, and after 5 hours, the eyelashes were washed with makeup remover, dried, and went to bed. The next morning, the condition when looking at the mirror was visually observed, and the degree of upward eyelashes was evaluated. The result is shown by the integrated value of 5 people.
5: The upper eyelashes are facing upwards.
4: The upper eyelashes are facing up.
3: The upper eyelashes are slightly upward.
2: The upper eyelashes do not turn up very much.
1: The upper eyelashes do not turn upward.

Examples 14 to 26 and Comparative Example 2 (oil-in-water mascara)
An oil-in-water mascara having the composition shown in Table 2 was produced, and the curl effect of the upper eyelashes, the curl duration after 5 hours, the curl duration after cleansing, and the curl duration the next morning were evaluated in the same manner as in Examples 1 to 13. .. The results are also shown in Table 2.

(Production method)
The oil phase component and component (C) having the compositions shown in Table 2 are stirred and melted at 95 ° C. to obtain an oil phase. Next, this oil phase is added to the aqueous phase components, components (D) and (F) that have been uniformly mixed at 85 ° C. in advance, and the mixture is stirred and cooled to room temperature to produce a wax dispersion. Further, the components (A), (B), (E), other components, and the wax dispersion were uniformly mixed at room temperature and degassed to produce an oil-in-water mascara.

Examples 27 and 28 (water-in-oil mascara)
In the same manner as in Examples 1 to 13, water-in-oil mascara having the composition shown in Table 3 was produced.
The obtained water-in-oil mascara has an excellent curling effect on the upper eyelashes, and the curling effect is maintained even after cleansing or the next morning.

Claims (7)

The following components (A), (B), (C) , (D) and (E) :
(A) One or more selected from hydroxymonocarboxylic acid, hydroxydicarboxylic acid, aromatic sulfonic acid and salts thereof,
(B) Film forming agent 8 to 35 % by mass,
(C) 10-40 % by mass of solid wax at 25 ° C.
(D) Nonionic surfactant 0.1 to 20% by mass ,
(E) Glycol 0.1 to 6% by mass
A cosmetic for eyelashes, wherein the mass ratio ((B) + (C)) / (A) of the total content of the components (B) and (C) to the component (A) is 20 to 900 . The cosmetic for eyelashes according to claim 1, wherein the content of the component (A) is 0.05 to 50% by mass as an acid. The eyelash cosmetic according to claim 1 or 2, wherein the mass ratio (B) / (A) of the component (B) to the component (A) is 5 to 500. The cosmetic for eyelids according to any one of claims 1 to 3, wherein the component (A) is one or more selected from lactic acid, malic acid, tartaric acid, 2-naphthalene sulfonic acid and salts thereof. .. The makeup for eyelids according to any one of claims 1 to 4, wherein the component (B) is one or more selected from trimethylsiloxysilicic acid, alkyl acrylate copolymers, and alkyl acrylate / vinyl acetate copolymers. Fee. A method for maintaining the curl shape of eyelashes by applying the eyelash cosmetic according to any one of claims 1 to 5 to the eyelashes and then curling the entire eyelashes using an eyelash curler. A method of maintaining the curl shape of the eyelashes by applying the eyelash cosmetic according to any one of claims 1 to 5 to the eyelashes after curling the entire eyelashes using an eyelash curler.