JP2001302441A - Spherical powder cosmetic and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a spherical powder cosmetic having an interest in appearance due to the sphericity and excellent in impact resistance or taking characteristics with a cosmetic accessory such as a brush or a puff. SOLUTION: This spherical powder cosmetic is obtained by uniformly dispersing and mixing a powder in a dissolved solution prepared by completely dissolving a water-soluble thickener in water, forming the resultant mixture into a rodlike shape with an extruder, etc., shredding the extruded mixture into the objective size, preparing somewhat flexible rodlike masses, violently vibrating the resultant masses on a sieve until the masses become the spherical form and then removing excessive water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical powder cosmetic comprising a powder and a water-soluble thickener as essential components and having a major axis in the range of 3 mm to 50 mm and a method for producing the same. . More specifically, the present invention relates to a spherical powder cosmetic which is excellent in impact resistance and removal property with cosmetic props such as brushes and puffs and has an interesting appearance, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, spherical powder cosmetics have hardly been put on the market, but if they are to be produced by a general method of producing powder cosmetics, the powder is formed into a metal or resin mold. A method of putting and compression molding is conceivable.

[0003]

However, in this method, even if a three-dimensional shape such as a hemispherical shape, a quadrangular sleep, a triangular pyramid, or a columnar shape can be formed, it is practically and industrially difficult to make it spherical at once. Was. Therefore, it is thought that it is possible to obtain a spherical shape by making two hemispherical shapes of the same shape and laminating them, and trial production of two hemispherical compression molded products having the same volume and mass is made. Laminated spherical powder cosmetic was obtained by bonding with an adhesive. However, when this spherical powder cosmetic is taken with a brush or puff, it has an uneven appearance, it is difficult to adjust the appearance of the laminating line, etc. It had the disadvantage of being easy. Therefore, the molding pressure when making the hemisphere was further increased, and an attempt was made to improve the impact resistance by the same method as described above. It was not practical.

[0004]

In view of these problems, the present inventors have conducted intensive studies on a method of efficiently producing spherical powder cosmetics other than compression molding, and found that a water-soluble thickener was dissolved in water. A mixture obtained by uniformly dispersing and mixing the powder in the solution,
By extruding into a rod shape using an extruder, shred it to the desired size, create a somewhat soft rod-shaped mass, vigorously vibrate it on a sieve until it becomes spherical, and then remove excess water. The present inventors have found that a desired spherical powder cosmetic can be obtained, and have completed the present invention.

That is, a first aspect of the present invention comprises a powder and a water-soluble thickener as essential components, and has a major axis of 3 mm to 50 m.
m, which is in the range of m.

According to a second aspect of the present invention, a mixture obtained by uniformly dispersing and mixing powder in a solution obtained by dissolving a water-soluble thickener in water is prepared into a rod shape, which is cut into a desired size, and is softened. The above-mentioned method for producing a spherical powder cosmetic comprises producing a rod-shaped mass, vibrating it on a sieve until it becomes spherical, and removing excess water.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
Powders referred to in the present invention include, for example, talc, kaolin, sericite, muscovite, sericite, synthetic mica, phlogopite, magnesium carbonate, calcium carbonate, magnesium silicate, calcium silicate, aluminum silicate, hydroxyapatite,
Inorganic powders such as hydrous silicic acid, anhydrous silicic acid, zeolite and ceramic powder; inorganic fine powders such as fine titanium oxide, fine zinc oxide and fine iron oxide; nylon powder, polyethylene powder, polymethylbenzoguanamine powder, polymethyl methacrylate powder; Organic powders such as ethylene tetrafluoride powder, microcrystalline cellulose, silk powder, lauroyl lysine; surfactant metal salt powders such as calcium stearate, zinc stearate, magnesium stearate, magnesium myristate; titanium oxide, oxide Inorganic colored powders such as zinc, zirconium oxide, red iron oxide, iron titanate, yellow iron oxide, black iron oxide, carbon black, manganese violet, cobalt oxide, chromium oxide, chromium hydroxide, cobalt titanate, ultramarine and navy blue; Chita Red 104; coating mica, titanium oxide coated bismuth oxychloride, bismuth oxychloride, titanium oxide coated talc, fish scale flake, pearl pigments such as colored titanium oxide coated mica
No., Red No. 106, Red No. 201, Red No. 202, Red No. 205, Red No. 220, Red No. 226, Red No. 227
No., Red No. 228, Red No. 230, Red No. 401, Red No. 505, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 2
03, Yellow 204, Yellow 401, Blue 1, Blue 2, Blue 201, Blue 404, Green 3, Green 2
01, green 204, green 205, orange 201,
Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 20
Tar dyes such as No. 7; natural dyes such as carminic acid, laccaic acid, bradyline, crocin, etc., and these may be in any shape such as spherical, plate-like, amorphous, and the like. May be coated with a treatment product such as silicone, metal soap, lauroyl lysine, DNA sodium salt, polyether-modified silicone, polyethylene, fluorine compound and inorganic oxide which are well known in cosmetics. In addition, as for the size, the primary particle diameter is 5 nm to
It is preferably in the range of 200 μm.

Examples of the water-soluble thickener include carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, tragacanth gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid ester, carboxyvinyl polymer, xanthan gum, gelatin, sodium alginate , Gum arabic, gypsum, calcium sulfate, bentonite, agar and the like are used.

The cosmetic of the present invention contains, in addition to the above-mentioned powder, which is an essential component, components which are added to ordinary cosmetics, if necessary, such as various oils, as long as the effects of the present invention are not impaired. Surfactants, humectants, preservatives, drugs, ultraviolet absorbers, fragrances, chelating agents, pH adjusters, plant extracts, various vitamins, and the like.

Various oils include, for example, liquid paraffin,
Vaseline, paraffin wax, squalane, beeswax, carnauba wax, olive oil, lanolin, higher alcohols, fatty acids, higher fatty acids, ester oils, ceresin,
Oils commonly used in cosmetics such as microcrystalline wax, candelilla wax, diglyceride, triglyceride, silicone oil, perfluoropolyether, perfluorodecalin, perfluorooctane, jojoba oil, octyldodecyl myristate, neopentyl glycol dioctanoate, etc. Used.

Examples of the surfactant include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene cured castor. Nonionic surfactants such as oils and polyoxyethylene sorbitol fatty acid esters; anionic surfactants represented by fatty acid soaps such as sodium stearate and triethanolamine palmitate; and cationic surfactants and amphoteric surfactants Surfactants commonly used in cosmetics such as agents are used.

As the humectant, for example, humectants commonly used in cosmetics such as sorbitol, xylitol, glycerin, maltitol, propylene glycol, 1,3-butylene glycol, sodium pyrrolidonecarboxylate, sodium hyaluronate and polyethylene glycol are used. Can be As the preservative, for example, preservatives widely used in cosmetics, such as alkyl paraoxybenzoate, sodium benzoate, potassium sorbate, phenoxyethanol, and lactoferrin, are used. As the drug, for example, drugs commonly used in cosmetics such as vitamins, crude drugs, anti-inflammatory agents, bactericides and the like are used. Examples of the UV absorber include UV absorbers commonly used in cosmetics, such as a paraaminobenzoic acid UV absorber, an anthranyl UV absorber, a salicylic acid UV absorber, a cinnamic acid UV absorber, and a benzophenone UV absorber. Used.

As the plant extract, plant extract commonly used in cosmetics such as aloe extract, orange extract, seaweed extract, green tea extract, dokudami extract, mugwort extract, eucalyptus extract and strawberry juice are used. Examples of various vitamins include vitamins
A, β-carotene, vitamin B2, vitamin B12, vitamin B6, riboflavin, vitamin C, vitamin D, vitamin K, vitamin P and the like and derivatives thereof.

Specific applications of the spherical powder cosmetic of the present invention include, for example, baby powder, talcum powder, perfume powder, body powder, face powder, powder foundation, concealer, powder lipstick, blusher, eyeliner, eye shadow, There are eyebrow and the like.

The mixing ratio of the powder of the spherical powder cosmetic of the present invention and the water-soluble thickener is 90.0 to 99.9% by mass when the total amount is 100% by mass. 0.1 thickener
It is preferably in the range of 10.0 mass%. When the amount of the water-soluble thickener is less than 0.1% by mass, the impact resistance of the spherical cosmetic tends to be weak although there is a slight difference depending on the type, and conversely, it exceeds 10.0% by mass. And the removal of cosmetics tends to be poor, which is not preferable.

Next, a specific method for producing the spherical powder cosmetic of the present invention will be described.

The spherical powder cosmetic of the present invention is, for example, a mixture obtained by uniformly dispersing and mixing powder in a solution obtained by completely dissolving a water-soluble thickener in water, and forming a rod-shaped mixture using an extrusion molding machine or the like. This can be obtained by chopping this into a desired size to produce a somewhat soft rod-shaped mass, vibrating it vigorously on a sieve until it becomes spherical, and then removing excess water.

The amount of water for dissolving the water-soluble thickener during production is
Although it depends on the type of the water-soluble thickener, when the total amount of the spherical powder cosmetic is 100% by mass, it is 5.0 to 50.0% by mass.
It is preferable to adjust the water content within the range.
When the water content is less than 5.0% by mass, drying is easy, but it is not preferable because the rod-like mass becomes too hard and it takes a long time to make it into a spherical shape. Is too soft, adheres to the sieve and hardly becomes spherical, and the drying time is undesirably long.

The method of removing water used in the present invention includes:
Heat drying, air blowing drying, drying under reduced pressure, freeze drying and a method of combining them are exemplified. In the case of heating and drying, the drying temperature is preferably in the range of 40 to 150 ° C.

Apparatus machines used for industrially mass-producing the spherical powder cosmetic of the present invention are known as cosmetic manufacturing machines for mixing powder and a water-soluble thickener aqueous solution. Henschel Mixer, Robot Coupe (ROBOT C)
OUPE), planetary mixer (PLANETARY MIXER),
A mixing stirrer such as a ribbon mixer and a speed cutter can be used. In addition, a pelletizer manufactured by Fuji Paudal Co., Ltd. is used for an extruder for a mixture of powder and an aqueous solution of a water-soluble thickener. And an electric sieve known as a cosmetic manufacturing machine. But,
Since the spherical powder cosmetic of the present invention can be manufactured without being limited to these mechanical devices, any machine similar thereto may be used.

In the present invention, it is necessary that the long diameter of the spherical powder thus obtained is in the range of 3 mm to 50 mm. If the major axis is less than 3 mm, there is a problem that the removal becomes poor, spherical powder adheres to the brush, and the appearance is not interesting. On the other hand, if the major axis exceeds 50 mm, it is difficult to maintain the uniformity inside the spherical powder cosmetic composition, and there is a problem that the handleability during use is deteriorated. A practically preferable range is about 5 to 20 mm. Further, in the present invention, among the above-mentioned production methods, it is preferable to form a sphere without compression molding. In the case of compression molding, problems such as uneven strength and difficulty in forming a clean spherical shape may occur.

The method of using the spherical powder cosmetic of the present invention is to remove the spherical powder cosmetic of the present invention stored in a container with a cosmetic prop such as a brush, puff, sponge or the like which is generally used in cosmetics. The method is generally applied to the skin, but it may be applied directly to the skin without using these props.

The shape of the container for accommodating the spherical powder cosmetic of the present invention is not particularly limited, and is compact such as round, square, dome, pot, jar, box, circle, and square cylinder. Any known shape such as containers and bags may be used. Further, the material may be metal, resin, paper, bamboo, wood, or the like.

The number of colors or the number of types of sphere diameters when the spherical powder cosmetic of the present invention is stored in a container is not particularly limited in terms of imparting an interesting appearance, but is complicated in production. In consideration of the size, the number of colors is preferably about 1 to 10 colors, and the number of types of sphere diameter is preferably about 1 to 5 types.

[0025]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

The evaluation methods of the examples and comparative examples are described below. [Removal condition] Put 20 spherical powder cosmetics in a paper box,
It was taken 100 times with a face brush made of animal hair, and the state of removal of the outer layer and inner layer of the ball was checked, and the presence or absence of abnormality was visually confirmed. [Impact resistance test] Thirty female panelists were placed in a handbag and carried around for one month every day, and visual abnormalities such as cracking and chipping of the ball were visually observed. [Appearance of Appearance] A questionnaire survey was conducted on the appeal of the appearance of 20 female panelists. The evaluation results were based on the number of panelists who answered that they were interesting and interested. Example 1 (Face powder) A face powder was obtained according to the formulation and manufacturing method of the following Formulation Example 1. The unit is mass%. (Formulation Example 1) Component name Blended amount (1) Residual amount of talc (2) Silica-treated titanium oxide 1.5 (3) Bengala 0.2 (4) Yellow iron oxide 1.5 (5) Black iron oxide 0.1 (6) Sericite 5.0 (7) Metallic soap-treated synthetic mica 3.0 (8) Nylon powder 3.0 (9) Magnesium stearate 2.0 (10) Dimethylpolysiloxane 5.0 (11) Preservative Appropriate amount (12) Fragrance trace amount (13) Carboxymethylcellulose 0.5 (14) Water 24.5 Total 100.0 (Production method) Components (1) to (12) are charged into Mitsui Henschel mixer manufactured by Mitsui Mining Co., Ltd. After thorough mixing, a solution prepared by completely dissolving the component (13) prepared in advance in (14) is divided into several portions and uniformly mixed. The mixture was formed into a rod having a diameter of about 5 mm using a pelletizer made by Fuji Paudal Co., and further cut into a cylinder having a length of about 5 mm.
After drying in a ventilation dryer for 8 hours to obtain the desired spherical powder cosmetic, the product was placed in a glass jar to obtain a product. Comparative Example 1 (Face Powder) A product was obtained in the same manner as in Example 1 except that the manufacturing method of Example 1 was changed to the following manufacturing method. (Preparation method) Components (1) to (9) were charged into the Henschel mixer used in Example 1 and mixed and stirred, and then component (10) was further added.
Add (12), mix and stir evenly, take out, sieve, measure exactly two equal parts, put appropriate amount in hemispherical mold, press-mold with hydraulic press machine, put in glass jar and mix with product did. Example 2 (Eye shadow) An eye shadow was obtained according to the formulation and manufacturing method of the following Formulation Example 2. (Blending Example 2) Component name Blending amount (1) Talc remaining amount (2) Red No. 226 0.2 (3) Ultramarine blue 0.1 (4) Yellow iron oxide 0.2 (5) Black iron oxide 0.1 ( 6) Colored titanium oxide coated mica 16.0 (7) Titanium oxide coated mica 10.0 (8) Silk powder 3.0 (9) Lauroyl lysine 5.0 (10) Liquid paraffin 3.0 (11) Preservative (12) Fragrance trace (13) Xanthan gum 2.5 (14) Water 30.0 Total 100.0 (Preparation method) After thoroughly mixing components (1) to (12) in PLANETARY MIXER manufactured by Inoue Seisakusho Co., Ltd. A solution prepared by completely dissolving the component (13) prepared in advance in (14) was divided into several portions, and the mixture was uniformly mixed. Then, a spherical powder cosmetic having a diameter of 8 mm was prepared in the same manner as in Example 1. Obtained. Further, by manipulating the numerical values of the coloring components of components (2) to (7), four other spherical powder cosmetics of different colors were prepared, and a total of five colors were placed in a resin compact case to obtain a product. Comparative Example 2 A product was obtained in the same manner as in Example 2 except that a pelletizer was adjusted to obtain a spherical powder cosmetic having a diameter of 1 mm. Example 3 (Body powder) A body powder was obtained according to the formulation and the production method of Formulation Example 3 below. (Formulation Example 3) Ingredient name Blended amount (1) Residual amount of talc (2) Sericite 3.0 (3) Magnesium myristate 4.0 (4) Squalane 2.0 (5) Methylphenylpolysiloxane 6.0 ( 6) Glycerin 1.5 (7) Preservative appropriate amount (8) Flavor appropriate amount (9) Agar 0.2 (10) Water 17.0 Total 100.0 (Production method) Components (1) to (8) After thoroughly mixing in a ROBOT COUPE sold by Co., Ltd., a solution prepared by completely dissolving the previously prepared component (9) in (10) was divided into several portions and uniformly mixed. In the same manner as described above, three types of spherical powder cosmetics having diameters of 20 mm, 15 mm and 10 mm were obtained, and these were put in a pot container made of an aluminum alloy to obtain a product. Comparative Example 3 According to the formulation of Formulation Example 3, components (1) to (8) were prepared in Example 3.
After thoroughly mixing in ROBOT COUPE, a solution prepared by completely dissolving the component (9) prepared in advance in (10) is divided into several portions and uniformly mixed. After drying at about 60 ° C. and pulverization, the product was stamped on a metal plate using a mold to obtain a product.

Table 1 shows the evaluation results of the above Examples and Comparative Examples.

[0028]

[Table 1]

From the results shown in Table 4, it can be seen that all of the examples of the present invention are superior to the comparative examples in the degree of removal, impact resistance, and appearance. On the other hand, Comparative Example 1 was an example in which compression molding was performed by a hydraulic press without using a water-soluble thickener. Comparative Example 2 was a case where the particle diameter was as small as 1 mm. However, there was a problem that the particles adhered to the brush, and the brush was too small in size and looked dirty, and lacked interest. Comparative Example 3 is a normal stamped product. However, since it has the same contents as the spherical cosmetic, it is unsuitable for compression molding and easily cracked, and although it has no problem in usability, it lacks interest.

[0030]

From the above, it is clear that the spherical powder cosmetic of the present invention is excellent in impact resistance and removal property with cosmetic props such as brushes and puffs, and has an interesting appearance.

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Claims (2)

[Claims] 1. A spherical powder cosmetic comprising a powder and a water-soluble thickener as essential components, and having a major axis in a range of 3 mm to 50 mm. 2. A mixture obtained by uniformly dispersing and mixing powder in a solution obtained by dissolving a water-soluble thickener in water is prepared into a rod shape, which is cut into a desired size to form a soft rod-shaped mass. 2. The method for producing a spherical powder cosmetic according to claim 1, wherein excess water is removed after vibrating the powder on a sieve until the powder becomes spherical.