JP2002302417A - Powdery cosmetic and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a powdery cosmetic excellent in touch feeling, make up- retaining effect and economical property and capable of also using water, and to provide a method for producing the same. SOLUTION: The method for producing the powdery cosmetic is characterized by blending a resin compound soluble in a solvent while dispersing surface- untreated powder in the solvent and treating the surface-untreated powder to make it hydrophobic during its manufacturing process by using a wet type dispersing machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a powder cosmetic and a method for producing the same, and in particular, has excellent feel, long lasting effect and economical efficiency.
The present invention relates to a water-useable powder cosmetic and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, powder cosmetics represented by powdery foundations have been prepared by using an agitation mixer such as a Henschel mixer, a Nauter mixer, a ribbon blender, a kneader, etc., with a powder component and an oil phase component as a binder and a surfactant. Agents and the like are mixed and pulverized by a pulverizer or other pulverizer, and then filled in a metal or bark middle plate, or further subjected to dry press molding.

[0003] In recent years, various manufacturing methods and molding methods have been developed for powder cosmetics in order to improve practical characteristics such as feeling of use. For example, a cosmetic filling solidification method (Patent No. 1556592) in which a solvent such as alcohol is added to a cosmetic base to form a slurry, and then the slurry is filled in a container, and the solvent is removed by vacuum suction, is proposed. Have been.

[0004] In addition, mainly in the powdery foundation, a dual-purpose foundation for summer is prepared by blending a powder whose surface has been hydrophobized for the purpose of improving cosmetic durability against sweat and sebum and enabling use of water. Has been manufactured.

[0005]

However, in the above-mentioned dual-use foundation, powder whose powder surface has been previously subjected to hydrophobic treatment with silicone or the like is used.
In this case, in addition to the foundation manufacturing process, a hydrophobic treatment of the powder is required in advance, which is disadvantageous in terms of time and economy.

The present invention has been made in view of the above-mentioned prior art, and an object of the present invention is to provide a powder cosmetic which is excellent in feel, long-lasting effect, economical efficiency and can be used in water, and a method for producing the same. .

[0007]

Under such circumstances, the present inventors have been typified by a liquid foundation for the purpose of improving makeup durability and preventing secondary adhesion due to its film forming ability. When a resin compound and a powder component soluble in a solvent used for dispersing a powder component mainly mixed in a liquid cosmetic are dispersed and mixed by a wet disperser in a solvent in which the resin compound dissolves, It was unexpectedly found that the resin compound was adsorbed and the surface of the powder could be made hydrophobic.

Accordingly, the present inventors have proposed a method for producing a powder cosmetic using a wet disperser, which comprises at least a step of mixing a powder component and an oil component of a binder in a solvent to form a slurry. The powder cosmetic obtained by introducing a powder surface hydrophobizing step using a resin compound is the same as a conventional dual-purpose powder cosmetic using a powder whose surface has been hydrophobized in advance. In order to complete the present invention, it has been found that not only is it durable to sweat and sebum, it can be used with water, it also has a slippery unique feel, and it is also found to have economic merit. Reached.

That is, the method for producing a powder cosmetic according to the present invention comprises at least a step of mixing a powder component and an oil phase component as a binder in a solvent using a wet disperser to form a slurry, thereby producing a powder cosmetic. The process is characterized in that a resin compound is compounded at the time of dispersing the powder component, and the powder is subjected to a hydrophobic treatment.

Further, in the method for producing a powder cosmetic of the present invention, (A) a powder component of 60 to 97 in the total amount of the cosmetic.
% By weight, (B) 1 to 20% by weight of a resin compound soluble in a solvent used for dispersing the powder component, (C) 2 to 30% by weight of an oily component, and (A) depending on the component (B). It is preferred that the components are subjected to a hydrophobizing treatment during the process. In the above method, it is preferable that the resin compound soluble in the solvent (B) used in dispersing the powder component is an organosilicon resin compound.

[0011] The powder cosmetic of the present invention is characterized in that, in a process for producing a powder cosmetic, at least a step of mixing a powder component and an oil phase component as a binder in a solvent using a wet disperser to form a slurry. It is characterized by being obtained by blending a resin compound soluble in a solvent used at the time of dispersing the powder component at the time of dispersing the component, and performing a hydrophobic treatment on the powder.

Further, in the powder cosmetic of the present invention, (A) 60-97% by weight of the powder component,
(B) a compounding ratio of 1 to 20% by weight of a resin compound soluble in a solvent used for dispersing a powder component, (C) a mixing ratio of 2 to 30% by weight of an oily component, and the component (A) is formed by the component (B). It is preferably obtained by subjecting it to a hydrophobic treatment. In the above cosmetics, it is preferable that the resin compound soluble in the solvent (B) used in dispersing the powder component is an organosilicon resin compound.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The present invention is applicable to a solvent used for dispersing powder components in a powder cosmetic preparation manufacturing process including at least a step of mixing a powder component and an oil phase component as a binder in a solvent using a wet disperser to form a slurry. Formulated with a soluble resin compound,
It is characterized in that a hydrophobic treatment is performed.

[0014]Powder ingredients  As the powder component used, it can be generally used for cosmetics
It is not particularly limited as long as it is one. Concrete
Examples of cosmetic powders include talc, kaolin, mica, and cirrus
Mother (sericite), muscovite, phlogopite, synthetic mica, red cloud
Mother, biotite, lithia mica, vermiculite, carbonated mug
Nesium, calcium carbonate, aluminum silicate, silica
Barium acid, calcium silicate, magnesium silicate,
Strontium silicate, metal tungstate, magne
Cium, silica, zeolite, barium sulfate, calcined sulfuric acid
Calcium (baked gypsum), calcium phosphate, fluorine
Apatite, hydroxyapatite, ceramic powder
-, Metal soap (zinc myristate, calcium palmitate)
, Aluminum stearate, etc.), boron nitride, etc.
Inorganic powder; PMMA, silicone resin powder, silicone
Corn rubber powder, nylon powder, silk powder
-, Organic powders such as wool powder and urethane powder;
Inorganic white pigments such as titanium dioxide and zinc oxide; iron oxide
(Red iron), inorganic red pigments such as iron titanate; γ-acid
Inorganic brown pigments such as iron oxide; inorganic yellow such as yellow iron oxide and loess
Pigments: black iron oxide, carbon black, low titanium oxide
And other inorganic black pigments; mango violet, baltic
Inorganic purple pigments such as olet; chromium oxide, hydroxide hydroxide
Green pigments such as cobalt and cobalt titanate; ultramarine, navy blue
Blue pigments such as titanium oxide coated mica, acid
Titanium oxide coated bismuth oxychloride, titanium oxide
Coated talc, colored titanium oxide coated mica, o
Inorganic pearl pigments such as bismuth oxychloride and fish scale foil; aluminum
Metal powder pigments such asium powder and copper powder;
Red 201, Red 202, Red 204, Red 20
5, Red 220, Red 226, Red 228, Red
Color No. 405, Orange No. 203, Orange No. 204, Yellow 205
, Organic pigments such as yellow No. 401 and blue No. 404; red 3
No., Red No. 104, Red No. 106, Red No. 227, Red
230, Red 401, Red 505, Orange 205
No. 4, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203
No. 3, green No. 3, blue No. 1 zirconium lake, burr
Organic lake pigments such as um lake and aluminum lake;
Natural pigments such as chlorophyll and β-carotene;
You. In addition, the present invention enables hydrophobic treatment in the process.
However, if necessary, the surface may be
Water-repellent powder may be used. Examples of surface water repellent treatment
For example, silicone, higher fatty acid, higher alcohol, fat
Fatty acid ester, metal soap, amino acid, alkylphosph
Sulfate, cationic surfactant, perfluoroalkyl
Acid, dextrin fatty acid ester, etc.
Can be

In the present invention, the amount of the powder component is preferably 60 to 97% by weight, more preferably 65 to 90% by weight.

[0016]Resin compound  The resin compound used in the present invention may be used for cosmetics.
There is no particular limitation as long as, for example, acrylic resin
Compound, styrene resin compound, organosilicon resin compound
Products, methacrylic resin compounds, and the like.
Organosilicon resin compounds are preferred, and
Tilsiloxysilicic acid, fluorine-modified silicone resin,
Ril silicone copolymers and the like are more preferred. Trimethi
Lucyloxysilicic acid has a molecular weight of 1500 to 100,000.
Among them, those having a molecular weight of 3,000 to 600
0 is preferably used.

In the present invention, the compounding amount of the resin compound is preferably 1 to 20% by weight, more preferably 5 to 15% by weight, and further preferably 5 to 10% by weight.
% By weight. If the amount of the resin compound is less than 1% by weight, sufficient surface hydrophobicity of the powder cannot be achieved,
No satisfactory products were obtained in terms of water usage and smooth usability. Further, even if the amount of the resin compound exceeds 30% by weight, the hydrophobicity is not further improved, which is uneconomical and may give a sticky feeling in use.

[0018]Oily ingredients  The oily component used in the present invention is generally used in cosmetics.
There is no particular limitation as long as it can be used.
No. Specifically, dimethylpolysiloxane, cyclic dimethyl
Methylpolysiloxane in addition to polyphenylsiloxane
Such as silicone oil, squalane, liquid paraffin, light
Isoparaffin, Vaseline, Microcrystalline
Various hydrocarbon oils such as
Listic acid, palmitic acid, stearic acid, olein
Acids, higher fatty acids such as isostearic acid, behenic acid, etc.
Alcohol, stearyl alcohol, oleyl alcohol
Alcohol, higher alcohols such as batyl alcohol, cetyl-
2-ethylhexanoate, 2-ethylhexyl palmi
Tate, 2-octyldodecyl myristate, neopen
Tyl glycol-2-ethylhexanoate, trioc
Glyceride tannate, 2-octyldodecyl oleate, a
Sopropyl myristate, myristyl myristate, g
Glyceride lysostearate, glyceryl trioleate
Esters such as glyceride
Leave oil, avocado oil, jojoba oil, sunflower oil, safra
Wheat oil, camellia oil, shea butter, macadamia nut oil, mink
Oil, lanolin, lanolin acetate, liquid lanolin, castor oil
Oils and fats, waxes such as mokuro, perfluoropolye
Fluorinated oils such as
I can do it. Use one or more oily components.
Can be.

In the present invention, the amount of the oil component is preferably 3 to 30% by weight, more preferably 7 to 30% by weight.
20% by weight.

[0020]Other ingredients  Further, in the present invention, a surfactant, a dispersant, a stabilizing agent,
Agents, coloring agents, preservatives, antioxidants, ultraviolet absorbers, fragrances
Etc. may be appropriately compounded within a range that achieves the object of the present invention.
I can do it.

[0021]solvent  As the solvent used in the present invention, the resin compound used is dissolved.
There is no particular limitation as long as it conforms to
Alcohol, ethanol, isopropyl alcohol, etc.
Benzene, toluene, silicone oil, etc.
However, considering actual use, ethanol and isopropyl alcohol
Preferred is rucol.

[0022]Wet dispersion machine  The wet dispersing machine referred to in the present invention applies an impact force to powder in a liquid.
This is a disperser that performs grinding.

The wet disperser used in the present invention includes a homomixer, a clear mix, a roller mill, a TK mill,
Alternatively, a medium agitation mill such as a sand grinder mill, a bead mill, a ball mill, etc. are exemplified.As a dispersing machine, a powder component is broken up and dispersed to a state close to primary particles, and an oil component is uniformly dispersed on the powder surface. Any material that can be attached can be used without particular limitation. Among them, a medium stirring mill such as a batch type bead mill having a relatively strong dispersing force, such as a basket mill, a horizontal type, a vertical type, and an annular type continuous bead mill, is particularly preferably used.

Glass, alumina, zirconia, titanium, steel and the like are used as the material of the medium such as beads, sand and balls used in the medium stirring mill, and zirconia is particularly preferable. In the case of a bead mill, the size is preferably about 1 to 10 mm in diameter, more preferably 3 to 5 mm in the present invention. Prior to dispersing the powder in a medium stirring mill, it is desirable to perform a primary treatment with a dispersing machine such as a homomixer or a homogenizer, which has a capability of crushing the powder to some extent, which is used in a usual powder dispersion step. That is, by crushing the particles in the agglomerated state in the primary treatment, crushing in the medium stirring mill that is the subsequent secondary treatment, reducing the load required for dispersion,
This is because the powder can be efficiently crushed and dispersed.

[0025]Production method  In the present invention, a powder component in a solvent, a resin compound and
Of the powder component by using the wet disperser described above.
The agglomerated particles are crushed and subjected to hydrophobic treatment in a state close to the primary particles.
U. Next, the oily component is blended to form a slurry.
Oil component uniformly to the hydrophobized powder close to the primary particles
Can be attached.

Therefore, it is possible to produce a powder cosmetic while performing the hydrophobic treatment, which is advantageous in terms of time and economy.

After the powder component and the oil component which have been hydrophobized as described above are mixed in a solvent to form a slurry, the solvent is removed from the slurry by a conventional method such as distillation or volatilization. The powder cosmetic can be obtained by filling in a container such as a resin middle plate.

Alternatively, the solvent may be removed from the slurry, and the slurry may be filled in a container such as a metal or resin middle plate, followed by dry press molding. Dry press molding can be performed by a conventional method. After removing the solvent from the slurry, a pulverizing step may be further provided.

Alternatively, after the slurry is filled in a container such as a metal or resin middle plate, suction press molding may be performed. Suction press molding can be performed by a conventional method.

[0030]Use  The powder cosmetic of the present invention includes, for example,
Shadow, teak color, body powder, powder
Powder, baby powder, face powder, etc.
Applied.

[0031]

The present invention will be described below with reference to specific examples.
The embodiment does not limit the technical scope of the present invention. In addition, the compounding amount is shown by weight% unless otherwise specified. Prior to the examples, test methods and test evaluation criteria will be described.

<Evaluation of Practical Properties> The samples were applied to 20 female panelists, and the makeup was held and the slipperiness was evaluated. [Evaluation] ◎: 17 or more respondents are good ○: 12 to 16 respondents are good △: 9 to 11 respondents are good ×: 5 to 8 respondents are good ××: 4 Answers below are good

<Hydrophobic test> After the powder component and the organic silicon resin compound in the product manufacturing process are dispersed and mixed in a solvent, a part of the obtained slurry is taken out, and filtered, washed with ethanol and dried. The obtained powder was placed on the surface of water in a beaker, and stirred to determine whether the powder was dispersed in the water or not.

<Water use test> Whether or not water can be used was determined by taking an appropriate amount of a powdery foundation sponge into which an appropriate amount of water had been absorbed and applying it to the skin.

[0035]Example 1, Comparative Example 1 Foundation  In Example 1, the powder components in the formulation shown in Table 1 below and resinification
Zirconia beads embedded in ethanol solvent
Using a sand grinder mill for 15 minutes
After mixing, add the remaining oil phase components, and further
-Dispersion and mixing for 15 minutes using a continuous bead mill
And fill the obtained slurry into a container (resin middle plate)
Then, suction press molding was performed by a known method. On the other hand, Comparative Example 1
Was manufactured in the same manner as in Example 1 without using a resin compound.
Was.

[0036]

[Table 1]  Example 1 Comparative Example 1  Sericite 10 10 Talc to 100 to 100 Mica 15 15 Titanium dioxide 10.5 10.5 Fine particle titanium dioxide 55 Iron oxide red 0.8 0.8 Iron oxide yellow 22 Iron oxide black 0.1 0.1 Silicone resin Spherical powder 66 Trimethylsiloxysilicic acid 100 Liquid paraffin 44 Petrolatum 44 Sorbitan sesquiisostearate 0.8 0.8 Paraben proper amount proper amount antioxidant proper amount proper amount perfume proper amount proper amount  Makeup ◎ ○ Smoothness ○ × Hydrophobicity test No problem Dispersed in water Water use test No problem Unavailable (caking)

From the results shown in Table 1, the powder cosmetic of the present invention was
It can be seen that the makeup is excellent and has a smooth feeling. Further, it can be seen that there is no problem in the hydrophobicity test and the water use test. This indicates that the powder has been subjected to a hydrophobic treatment.

On the other hand, it can be seen that the powder cosmetic of Comparative Example 1 in which the powder was not subjected to the hydrophobizing treatment was slightly inferior in makeup lasting and inferior in slipperiness. Further, in the hydrophobicity test, the substance was dispersed in water, and in the water use test, caking occurred, and the water could not be used.

[0039]Amount of resin compound  Next, the present inventors studied the compounding amount of the resin compound.
Was. In Test Examples 1 to 4, the formulation shown in Table 2 was applied to Example 1
A product was obtained in the same manner as described above.

[0040]

[Table 2]  Test example1 2 3 4  Sericite 20 20 10 10 Talc to 100 to 100 to 100 to 100 Mica 10 10 10 10 Titanium dioxide 10.5 10.5 10.5 10.5 Iron oxide red 0.8 0.8 0.8 0.8 Iron oxide yellow 2 2 2 2 Iron oxide black 0.1 0.1 0.1 0.1 Silicone elastic powder 6 6 6 6 Trimethylsiloxysilicic acid 0.5 1 20 30 Liquid paraffin 4 4 4 4 Vaseline 4 4 4 4 Sodium salt sesquiisostearate 0.8 0.8 0.8 0.8 Paraben qs qq qq qq qq antioxidant qq qq qqFragrance appropriate amount appropriate amount appropriate amount appropriate amount  Makeup ○ ○ ◎ ◎Smooth feeling △ ○ ◎ ◎  Hydrophobicity test a little problem in water problem problem problemDispersion None None None  Water use little problem problem problemCaking None None None

Test Example 1 was slightly inferior to the slipperiness characteristic of the powder cosmetic of the present invention. Further, it can be seen that there are some problems in the hydrophobicity test and the use of water. Since the amount of the resin compound (trimethylsiloxysilicic acid) is small,
It is considered that the hydrophobization treatment of the powder was incomplete.

In Test Examples 2 to 4, there was no problem in makeup holding, slipperiness, hydrophobicity test, and water use test. However, when Test Examples 3 and 4 were compared, there was no significant difference in performance. Since the organosilicon-based resin compound is relatively expensive, Test Example 7 is considered to be very uneconomical. Therefore, it can be said that the compounding amount of the resin compound is preferably 1 to 20% by weight.

Also, considering the economics of the organosilicon resin compound in particular, the amount of the organosilicon resin compound is preferably 5 to 15% by weight, more preferably 5 to 10% by weight. .

[0044]Example 2  In Example 2, the powder component and the organic resin in the formulation shown in Table 3 below were used.
An iodine-based resin compound is mixed in an ethanol solvent with a homomixer.
For 15 minutes at 9000 rpm
After that, add the remaining oil phase components and add a sand grinder.
Using a mill, disperse and mix for 15 minutes.
And evaporate to dryness.
The mixture was crushed once and filled into a container in powder form.

[0045]

[Table 3]

[0046]Example 3 Face powder  In Example 3, the powder component and the organic resin in the formulation shown in Table 4 below were used.
An iodine-based resin compound is mixed in an ethanol solvent with a homomixer.
For 15 minutes at 9000 rpm
After that, the remaining oil phase components are added, and the annular type
Using a continuous bead mill, disperse and mix for 15 minutes.
The slurry obtained is evaporated to dryness and the resulting powder is
Crush once with a luperizer and fill the container with powder
did.

[0047]

[Table 4]

[0048]

According to the present invention, a resin compound which is soluble in a solvent is blended during the dispersion of untreated powder in a solvent during the production process of the powder cosmetic using a wet disperser, and By performing the hydrophobizing treatment, it is possible to provide a powder cosmetic which is excellent in feel, long-lasting effect, and economical efficiency, and can be used in water.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuki Ogawa 2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama-shi, Kanagawa Prefecture Inside Shiseido Research Center (Shin-Yokohama) (72) Inventor Kazuhisa Ohno Tsuzuki, Yokohama-shi, Kanagawa 2-2-1 Hayabuchi-ku Shiseido Research Center Co., Ltd. (Shin-Yokohama) F term (reference) 4C083 AB212 AB232 AB242 AB432 AC012 AC022 AC332 AC442 AC482 AC912 AD011 AD151 AD152 BB11 BB21 CC01 CC12 DD17 EE01 EE06 FF05

Claims (6)

[Claims] In a process for producing a powder cosmetic, at least a step of mixing a powder component and an oil phase component as a binder in a solvent using a wet disperser to form a slurry, the solvent used when the powder component is dispersed. A method for producing a powder cosmetic, comprising mixing a soluble resin compound at the time of dispersion treatment and performing a hydrophobic treatment on the powder. 2. The method according to claim 1, wherein (A) 60 to 97% by weight of a powder component, (B) 1 to 20% by weight of a resin compound soluble in a solvent used for dispersing the powder component, and (C) an oily component. A method for producing a powder cosmetic, which has a compounding ratio of 2 to 30% by weight, and wherein a component (A) can be subjected to a hydrophobic treatment in a process by a component (B). 3. The method according to claim 1, wherein
(B) A method for producing a powder cosmetic, wherein the resin compound soluble in a solvent used for dispersing the powder component is an organosilicon resin compound. 4. In a process for producing a powder cosmetic, at least including a step of mixing a powder component and an oil phase component as a binder in a solvent using a wet disperser to form a slurry, the solvent used when dispersing the powder component is used. Formulated with a soluble resin compound,
A powder cosmetic obtained by performing a hydrophobic treatment on a powder. 5. The method according to claim 4, wherein (A) 60 to 97% by weight of a powder component, (B) 1 to 20% by weight of a resin compound soluble in a solvent used for dispersing the powder component, and (C) an oily component. A powder cosmetic having a compounding ratio of 2 to 30% by weight and obtained by subjecting the component (A) to a hydrophobizing treatment in the process with the component (B). 6. The cosmetic powder according to claim 4, wherein the resin compound (B) soluble in a solvent used for dispersing the powder component is an organosilicon resin compound.