JP4907071B2 - Cosmetic for salmon - Google Patents

Description

  The present invention relates to a vaginal cosmetic such as mascara having an aqueous medium containing a hydrophobic porous powder as a continuous phase.

  The important role of the mascara is to give the cocoon a volume and make the cocoon dark and long, and to keep the curled cocoon curled. In particular, for example, an effect of sustaining curling up by curlers or comb-ups so as not to drop is required, which is an important role of mascara. In order to provide such a mascara function, generally, a mascara is blended with a film forming agent such as a resin emulsion, a solid component such as wax, and the like.

  However, the curled up wrinkles are given a volume and curled up immediately after application by mascara, but the problem of the curl retention being impaired by the weight of the mascara solution over time after application occurs. . In order to improve curl retention, a method of blending a large amount of film forming agent is used, but it results in a sense of incongruity, or the film becomes faster and becomes dull. In some cases, the properties were impaired.

  Conventionally, as an eye makeup cosmetic technology containing a hydrophobic porous powder, hydrophobic anhydrous silica containing water dispersed in fine particles is dispersed in oil and stabilized with an organic gelling agent. In addition, a technique relating to a water-in-oil eye makeup material is disclosed (see Patent Document 1).

  In addition, in a film-forming eyeliner blended with a synthetic resin emulsion, eye makeup such as mascara, eyebrow, etc., by dispersing wet-process silica and / or amorphous silicates and utilizing their characteristics, It is assumed that the drying speed is quick, the water resistance, the coating film strength, the adhesion to the skin, the eyelashes, etc. are excellent, and the adjustment of the drying speed and the viscosity can be easily made by changing the blending amount as appropriate. A technique is disclosed (see Patent Document 2).

Japanese Patent Publication No. 3-52444 Japanese Patent Publication No. 5-25845

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vaginal cosmetic with excellent usability that can impart a volume to the heel and maintain curling of the curled heel. There is.

  As a result of diligent research to solve the above-mentioned problems, the present inventor prepared a vaginal cosmetic using an aqueous medium as a continuous phase, and the hydrophobicity of a hydrophobized product of porous silica in the aqueous medium. The present inventors have found that this problem can be solved by blending the above porous powder and dispersing it in the aqueous medium, thereby completing the present invention.

  That is, the present invention is a vaginal cosmetic using an aqueous medium as a continuous phase, which contains a hydrophobic porous powder.

  The hydrophobic porous powder is preferably hydrophobized porous silica.

  The vaginal cosmetic of the present invention preferably contains a film forming agent. The film forming agent is preferably a resin emulsion.

  The hydrophobic porous powder in the vaginal cosmetic of the present invention is dispersed and contained in an aqueous medium of the vaginal cosmetic having an aqueous medium as a continuous phase.

  ADVANTAGE OF THE INVENTION According to this invention, the cosmetics for wrinkles with sufficient usability which can give the volume to a wrinkle and can hold | maintain and maintain the curl of the curled up wrinkles are obtained.

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

  The hydrophobic porous powder used in the present invention is a porous powder having pores having hydrophobic properties. The porous powder of the hydrophobic porous powder is generally composed of secondary particles that are three-dimensional aggregates formed from primary particles. The volume ratio of the space of the porous powder can be represented by a pore volume (ml / g) which is a volume per 1 g of the powder. The pore volume of the porous powder according to the present invention is preferably 1.5 to 2.5 ml / g, more preferably 1.7 to 2.5 ml / g. By being porous, the apparent density of the powder is reduced and the weight can be reduced. The shape of the porous powder is preferably spherical from the viewpoint of excellent slipperiness, and vaginal cosmetics such as mascara blended with this powder have good elongation when using cosmetic liquids, and feel when applied. It feels light and light.

  Examples of the porous powder in the present invention include porous silica, cross-linked polymethyl methacrylate (PMMA), resin powder such as nylon, and cellulose-based powder. The silica is a compound having silicon dioxide as a main component, and one having pores is used. For example, in the case of silica synthesized by a wet method, primary particles are formed, and porous secondary particles that are three-dimensional aggregates are formed. Examples of the cellulose powder include cellulose powder and cellulose acetate powder obtained by acetylating cellulose. In the present invention, it is preferable to use porous silica as the porous powder.

  The hydrophobic porous powder in the present invention may be hydrophobic itself or may be a hydrophilic porous powder that has been subjected to a hydrophobization treatment. However, the hydrophobic porous powder must have sufficient hydrophobicity. There is. The method of hydrophobizing treatment is not particularly limited as long as hydrophobicity is sufficiently imparted. As a general method for hydrophobizing treatment, fluorine treatment such as perfluoroalkyl phosphate diethanolamine salt, silicone treatment such as methyl hydrogen polysiloxane, methyl polysiloxane, and the like can be given. The treatment amount is not particularly limited as long as sufficient hydrophobicity can be imparted, but 5 to 15% by mass with respect to the powder is appropriate.

  Since the porous powder is commercially available, the commercially available product can be used after being hydrophobized. Examples of commercially available products of porous silica include Silicia 350 (Fuji Silysia Chemical Co.), SB-705 (Miyoshi Kasei Co., Ltd.) and the like. Examples of commercially available cellulose acetate powder include Cellflow TA-25 (Chisso Corporation). Hydrophobic porous powder is also commercially available, and examples thereof include SA-SB-705 (silicone-treated porous silica) (Miyoshi Kasei Co., Ltd.).

  In the present invention, the content of the hydrophobic porous powder is preferably 1 to 10% by mass in the total amount of the cosmetic for vaginal. If the content is less than 1% by mass, the effects of the present invention may not be sufficiently obtained. On the other hand, if it exceeds 10% by mass, the mascara solution may become whitish and color development may be reduced. A more preferable content is 3 to 7% by mass in the total amount of the cosmetics for vaginal.

  Further, the hydrophobic porous powder has a particle size that affects the content. That is, there is a correlation between the particle size of the powder and the viscosity of the glazing cosmetic. The smaller the particle size, the higher the viscosity and the faster the drying speed. If the viscosity rises too much and the drying speed becomes too fast, the usability deteriorates. Therefore, in consideration of usability, the amount that can be blended decreases as the particle size decreases, and if the blending amount is small, sufficient effects of the present invention may not be obtained. Therefore, in the present invention, the preferred particle size is 1 to 20 μm, more preferably 3 to 15 μm, in terms of average particle size.

  The vaginal cosmetic of the present invention is a composition having an aqueous medium as a continuous phase, and the continuous phase contains a hydrophobic porous powder. The hydrophobic porous powder is dispersed in an aqueous medium, which is a continuous phase of the cosmetic for vaginal, and the effect of the present invention, that is, excellent vaginal volume application, usability, and excellent vaginal curl up Demonstrate lasting effect. As the aqueous medium, water is preferable, and generally a mixture of water and a water-soluble or water-swellable substance is preferably used.

  The vaginal cosmetic composition of the present invention preferably contains a film forming agent. By blending the film forming agent, the effect of maintaining curl up of the wrinkles can be effectively achieved. The film forming agent is a polymer having a property of forming a film on the substrate after applying a solution or dispersion of a solvent such as water to the substrate and drying the solvent. There are no particular restrictions as long as they are present, and specific examples include acrylic polymers and urethane polymers, and these are preferred.

  The acrylic polymer is a polymer containing an acrylic monomer unit such as an acrylic ester or a methacrylic ester, and a polymer containing an acrylic monomer unit such as an acrylic ester or a methacrylic ester (referred to as an acrylic ester polymer). .) Is preferred.

  The acrylic ester polymer may be a polymer of an acrylic ester monomer such as an acrylic ester or methacrylic ester, or may be a polymer obtained by copolymerizing the acrylic ester monomer with another monomer. Absent.

  Examples of the acrylate ester include methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, octyl acrylate, 2-ethylhexyl acrylate, and the like. Examples of the methacrylate ester include methyl methacrylate and ethyl methacrylate. , Butyl methacrylate, hexyl methacrylate, octyl methacrylate, 2-ethylhexyl methacrylate and the like. One or two or more acrylate monomers are used in combination.

  Examples of the other monomer include olefins such as acrylic acid, methacrylic acid, vinyl acetate, styrene, ethylene, and propylene. Other monomers are used alone or in combination of two or more.

  In the present invention, as the acrylic polymer, a polymer of a monomer mixture mainly composed of the acrylate ester monomer is more preferable. In particular, a polymer of a monomer mixture mainly composed of ethyl acrylate and / or ethyl methacrylate is used. Coalescence is preferred.

  Examples of the urethane polymer include polyurethane obtained by a polyaddition reaction of at least an isocyanate and a polyhydric alcohol (polyol) such as glycol.

  In the present invention, the film forming agent such as acrylic polymer and urethane polymer is preferably blended in the form of a resin emulsion. The resin emulsion is obtained by dispersing a resin in water, and a resin emulsion that is usually blended in cosmetics can be used. In the present invention, it is preferable to use a resin emulsion obtained by emulsion polymerization of a polymerizable monomer.

  Commercially available products can be used for the resin emulsion of the present invention. Examples of commercially available products include Daitozol 5000AD (manufactured by Daito Kasei Kogyo Co., Ltd.), Yodozol GH34 ( AVALUE UR450 (BF GOODRICH), etc. are mentioned as COVACRYL MS11 (manufactured by NSC Japan), COVACRYL MS11 (manufactured by LCW), and urethane polymer emulsion.

  Other film forming agents used in the present invention include rosin esters such as hydrogenated ester gum, oil-soluble film forming agents such as trimethylsiloxysilicic acid and acrylic-silicone copolymer, hydroxyethyl cellulose, polyvinyl alcohol, and polyvinylpyrrolidone. Examples thereof include water-soluble film forming agents such as (PVP) and vinylpyrrolidone (VP) -vinyl acetate (VA) copolymers, and wax emulsions obtained by dispersing fine wax in water.

  The content of the film-forming agent is preferably 2 to 20% by mass in the total amount of the cosmetic for vaginal. If the content is less than 2% by mass, the effect of addition is not sufficiently exhibited. On the other hand, if the content exceeds 20% by mass, it may be uncomfortable in some cases. A more preferable content of the film-forming agent is 5 to 15% by mass in the total amount of the cosmetic for vaginal.

  The vaginal cosmetics of the present invention include, in addition to the above components, other components used in normal vaginal cosmetics, such as powders, pigments, liquid oils, solid oils, viscosity modifiers, A monohydric alcohol, a fragrance, a surfactant, an antioxidant, an antiseptic, a drug, and the like can be appropriately blended within a range that does not impair the effects of the present invention.

  Of the above optional ingredients, specific examples of powders other than those described above include, for example, mica, talc, kaolin, synthetic mica, aluminum oxide, iron oxide, titanium oxide, zinc oxide, titanium mica, crystalline cellulose, polyethylene Powder, PMMA powder, nylon powder, silicon powder and the like. Each powder can be arbitrarily selected from one or two or more and can be blended. In some cases, the powder can be appropriately subjected to a surface treatment such as a hydrophobic treatment.

  In addition to hydrophobic porous silica, non-porous silica and porous silica that is not subjected to hydrophobization treatment can also be blended, and by blending these silicas, functional adjustment such as improvement of film strength, Effects such as imparting a volume-up effect and improving the stability of cosmetics can be obtained, and the composition can be blended within a range that does not hinder the effects of the present invention.

  In addition, the liquid oil is not particularly limited as long as it is a liquid oil at room temperature and is usually used in cosmetics. Specific examples include liquid oils, waxes, hydrocarbons, esters, fatty acids, Examples include liquid oils in alcohols, silicones and the like.

  Further, the solid oil content is not particularly limited as long as it is a solid oil content at normal temperature normally used in cosmetics. A solid oil having a melting point of 50 ° C. or higher is preferred. Specific examples include solid oils such as hardened oil and mole, solid higher alcohols such as behenyl alcohol, solid hydrocarbons such as ceresin, microcrystalline wax, paraffin wax, polyethylene wax, ozokerite, beeswax, candelilla wax, carnauba. Solid waxes such as wax, rice bran wax, and whale wax, and silicon wax are exemplified.

  EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. In addition, a compounding quantity is the mass%. The test method used in the present invention will be described below.

[Test method]
The use test by 10 panelists evaluated the effect of giving the volume of the eyelids, the effect of curling up the eyelashes curled up by a buller or comb-up, etc., and the usability (feeling of stickiness, ease of application, etc.). The following 1-point to 5-point evaluation was performed, and the following evaluation criteria were evaluated from the average score of 10 people.

(5-level evaluation)
5 points: Excellent.
4 points: Slightly superior.
3 points: Normal.
2 points: Slightly inferior.
1 point: Inferior.

(Evaluation criteria)
A: Average 4.5 points or more.
A: The average is 4.0 or more and the average is less than 4.5.
Δ: An average of 3.0 or more and an average of less than 4.0.
X: Average less than 3.0.

[Examples 1-2, Comparative Examples 1-3]
Mascara was produced according to the formulation shown in Table 1. That is, components (1) to (6) were added to component (14) and uniformly mixed, and then components (7) to (13) were uniformly mixed in order.

* 1 PVA-6450 (solid content 50%) (manufactured by Osaka Organic Chemical Industry Co., Ltd.)
* 2 Silicone-treated porous silica (pore volume 2.0 ml / g, average particle size 5 μm)
* 3 Untreated porous silica (pore volume 1.6ml / g)
* 4 Silica-treated product with no pores obtained by dry method.
* 5 Daitozol 5000AD (50% solid content) (Daito Chemical Industry Co., Ltd.)

  The evaluation results of Examples 1-2 and Comparative Examples 1-3 are shown in Table 2.

  From Table 2, it can be seen that the mascaras of Examples 1 and 2 in which the components according to the present invention were blended imparted a volume to the heel without impairing usability, and an excellent curl-up sustaining effect was obtained.

  In the following, examples of the cosmetic for vaginal skin of the present invention will be shown.

[Example 3] Mascara component content (mass%)
Hydroxyethyl cellulose 0.2
Polyvinyl alcohol 1.0
1,3-butylene glycol 2.0
Xanthan gum 0.1
Carnauba wax 6.0
Bead wax 5.0
Hydrogenated ester gum 1.0
Stearic acid triethanolamine 2.5
Cetostearyl alcohol 1.0
Hydrogenated jojoba oil 1.0
Jojoba oil 1.0
Sucrose fatty acid ester 3.0
Glycerol monostearate 1.0
Black iron oxide 8.0
Mica 1.0
Hydrophobic porous silica (* 1) 5.0
Resin emulsion (* 2) 20.0
Preservative Suitable amount Purified water Remaining

(* 1) Silicone-treated porous silica (pore volume 2.0 ml / g, average particle size 5 μm)
(* 2) Daitozol 5000AD (50% solid content) (Daito Chemical Industry Co., Ltd.)

[Example 4] Mascara component content (mass%)
Hydroxyethyl cellulose 0.2
Bentonite 0.5
Dipropylene glycol 2.0
Rice wax 6.0
Bead wax 5.0
Carnauba wax 1.0
Stearic acid triethanolamine 3.0
Cetostearyl alcohol 1.0
Hydrogenated jojoba oil 3.0
Jojoba oil 1.0
Sucrose fatty acid ester 3.0
Mica 2.0
Black iron oxide 8.0
Hydrophobic porous powder (* 1) 3.0
Resin emulsion (* 2) 10.0
Preservative Appropriate amount of purified water Remaining amount

(* 1) Silicia 350 (Fuji Silysia Chemical) Silicone treatment product (* 2) COVACRYL MS11 (solid content 45%) (LCW)

[Example 5] Mascara component blending amount (% by mass)
Hydroxyethyl cellulose 0.2
Polyvinylpyrrolidone 3.0
1,3-butylene glycol 2.0
Carnauba wax 4.0
Bead wax 5.0
Eicosene vinylpyrrolidone copolymer 1.0
Stearic acid triethanolamine 2.5
Cetostearyl alcohol 1.0
Hydrogenated jojoba oil 1.0
Silicone oil (60,000 cs) 1.0
Sucrose fatty acid ester 3.0
Glycerol monostearate 1.0
Mica 1.0
Black iron oxide 8.0
Hydrophobic porous powder (* 1) 7.0
Resin emulsion (* 2) 16.0
Preservative Appropriate amount of purified water Remaining amount

(* 1) Cellflow TA-25 (Chisso) Silicone treatment product (* 2) Iodosol GH34 (45% solid content) (NSC Japan)

[Example 6] Mascara component blending amount (mass%)
Hydroxyethyl cellulose 0.2
VP / VA copolymer 3.0
1,3-butylene glycol 4.0
Carnauba wax 3.0
Bead wax 5.0
Candelilla wax 2.0
Stearic acid 2.5
Cetostearyl alcohol 1.0
Silicone oil (3000cs) 1.0
Olive oil 1.0
Sucrose fatty acid ester 3.0
Black iron oxide 6.0
Hydrophobic porous powder (* 1) 8.0
Resin emulsion (* 2) 36.0
TEA 0.5
Preservative Appropriate amount of purified water Remaining amount

(* 1) SA-SB-705 (Miyoshi Kasei)
(* 2) Daitozol 5000AD (50% solid content) (Daito Chemical Industry Co., Ltd.)

Claims (1)

Cosmetics for wrinkles comprising an aqueous medium as a continuous phase, comprising 3 to 8% by mass of hydrophobic treated porous silica and 5 to 15% by mass of a film forming agent which is a resin emulsion of an acrylate copolymer .