JP5559990B2 - Method for producing solid powder cosmetic - Google Patents

Description

  The present invention relates to a method for producing a solid powder cosmetic.

  Conventionally, as a method for filling and molding solid powder cosmetics, a method has been used in which a cosmetic base material containing powder as a main component is filled in a container such as a metal pan and compression molded. The cosmetic base material may not be uniformly dispersed, and air may remain in the interior, resulting in quality problems such as a drop in drop strength. In particular, when a molded product is three-dimensionally processed, the press pressure differs depending on the thickness of the cosmetic material, so that the drop strength is significantly reduced.

  Therefore, the method of aligning the shape of the metal plate to the shape of the cosmetics, making the press pressure uniform, the method of making a hole in the bottom of the metal plate to make it easy to escape air (see Patent Document 1), mixing gypsum and reacting with water And a method for applying a strong binding force to cosmetics (see Patent Document 2) has been proposed. Furthermore, after the cosmetic base material and the solvent are mixed and filled in the container, a wet filling method (see Patent Document 3) that gives a soft feeling of use and a strong drop strength by obtaining a solid cosmetic by removing the solvent. Has been proposed.

JP 2002-51830 A JP-A-2005-23047 JP-A-56-108703

  On the other hand, in order to increase the commercial value of solid powder cosmetics, contrivances such as three-dimensional molding of the molding surface have been made, but with conventional technology, sufficient drop strength is provided to realize three-dimensional molding As a result, the feeling of use became hard and the feeling of use was reduced. Therefore, there has been a demand for the development of a three-dimensionally molded solid powder cosmetic material having a sufficient drop strength and a soft feeling of use.

  As a result of earnest research in view of the above situation, the present inventor blended a specific amount of metal soap in the wet filling method and applied vibration with a frequency of 10 to 40 kHz and an amplitude of 10 to 100 μm at the time of molding. The inventors have found that a solid powder cosmetic having an excellent feeling of use can be obtained while having sufficient drop strength for use by pressure molding.

  That is, the present invention is a method for producing a solid powder cosmetic in which a cosmetic base material and a solvent are mixed and filled in a container, and then pressure-molded so that the surface is three-dimensionally molded and the solvent is removed. In addition, the cosmetic base material contains 0.1 to 5% by mass of metal soap with respect to the cosmetic base material, and at the time of molding, a vibration having a frequency of 10 to 40 kHz and an amplitude of 10 to 100 μm is applied. In the method for producing a solid powder cosmetic to be pressure-molded.

  The solid powder cosmetic obtained by the method of the present invention has a sufficient drop strength while being three-dimensionally molded, and has a soft feeling of use.

The fatty acid constituting the metal soap used in the present invention may be saturated, unsaturated, linear or branched, preferably a fatty acid having 12 to 18 carbon atoms, more preferably a fatty acid having 14 to 18 carbon atoms. . Examples of the metal include aluminum, magnesium, calcium, and zinc, and aluminum is particularly preferable. Specifically, a metal salt of myristic acid, palmitic acid or stearic acid is preferable, such as aluminum stearate, aluminum distearate, aluminum dimyristate, magnesium stearate, magnesium myristate, calcium stearate, zinc myristate, zinc palmitate, etc. In particular, it is preferable to use aluminum stearate because sufficient drop strength can be imparted to a three-dimensionally molded solid powder cosmetic.
The compounding quantity of the metal soap used by this invention is 0.1-5 mass% with respect to cosmetics base materials, and 1-3 mass% is especially preferable. When it is within the range, a sufficient drop strength can be obtained, and the usability can be improved.

  In the present invention, a cosmetic base material and a solvent are mixed, filled in a metal or resin dish-like container, applied with vibration having a frequency of 10 to 40 kHz and an amplitude of 10 to 100 μm, and added so that the surface is three-dimensionally molded. After the pressure molding, a solid powder cosmetic is produced by removing the solvent.

The cosmetic base material is preferably mixed with a solvent after pulverization. A mixture obtained by mixing a cosmetic base and a solvent can be compression-molded as it is. The application of vibration is preferably performed in a state where a weight of about 10 g or more, preferably 100 g or more is applied to the mixture.
The vibration application time is preferably 0.1 to 2 seconds, particularly preferably 0.5 to 1.5 seconds. After the vibration is applied, the pressure is applied for 0.1 seconds or more, preferably 0.1 to 5 seconds. In particular, it is preferable to hold for 0.5 to 2 seconds because of excellent impact resistance.
Also, the pressure applied during pressure molding is 10 kg / cm ² or less, especially 1 to 5 kg / cm ² , so that it can be applied to the applicator during use, attached to the skin, and moist when applied. Is preferable. In addition, since the pressure to be applied can be set lower than the conventional pressure molding method, the container can be used even when a resin-made dish-like container such as PET resin, AS resin, ABS resin, or polycarbonate resin is used. It is difficult to cause problems such as breakage.

  Examples of the solvent used in the present invention include volatile hydrocarbons, volatile silicone oils, alcohols, etc., but the use of volatile hydrocarbons, particularly light liquid isoparaffin and / or isododecane, is three-dimensionally molded. This is preferable because sufficient drop strength can be imparted to the solid powder cosmetic. These solvents may be used alone, or may be used by mixing in an arbitrary ratio.

  The light liquid isoparaffin and isododecane used in the present invention are available as commercial products. Examples of the light liquid isoparaffin include IP solvent 1620MU (manufactured by Idemitsu Kosan Co., Ltd.), and examples of isododecane include Marcazole R (manufactured by Maruzen Petrochemical Co., Ltd.). It is done.

  Moreover, in this invention, when removing a solvent, the impact resistance of the obtained solid powder cosmetics improves by heat-drying at the temperature of 60-100 degreeC. More preferably, the impact resistance of the obtained solid powder cosmetic is significantly improved by heating and drying at a temperature of 70 to 90 ° C.

  The solid powder cosmetic molded into the three-dimensional shape of the present invention has the effect of the present invention because the difference in height between the topmost part and the deepest part of the molded product surface is 3 mm or more, preferably within the range of 5 to 10 mm. Appears prominently.

  Furthermore, the solid powder cosmetic in the present invention can obtain gloss after application and higher designability when flaky glass having an average particle size of 20 to 60 μm is attached to the surface of the solid shape. Therefore, it is preferable.

  The flaky glass used in the present invention is not particularly limited as long as it is generally used in cosmetics, and is described in detail in Japanese Patent No. 3702742. These flaky glasses may be coated with one or more kinds of noble metals, metal oxides, and / or silica, such as titanium oxide-coated glass powder, silver-coated glass powder, gold-coated glass powder, iron oxide-coated glass. In addition, these may be subjected to a surface treatment such as a hydrophobic treatment with a general oil agent, silicone oil, fluorine oil or the like by a known method. Examples of such commercially available products include METASHINE MC2025PS (average particle size 25 μm, silver-coated glass powder) manufactured by Nippon Sheet Glass Co., Ltd.

  The method for adhering the flaky glass to the surface of the solid powder cosmetic in the present invention is not particularly limited, but by applying a three-dimensional shape to the solid powder cosmetic and then spraying it using an organic solvent or the like. This is preferable because it is possible to adhere the flaky glass most uniformly and easily. Such an adhesion method is disclosed in, for example, Japanese Patent Application Laid-Open No. 2007-186437. The average particle size of the glass flakes to be deposited is 20 to 60 μm. When the particle diameter is within this range, the effect such as gloss after coating becomes particularly remarkable. In addition to the flaky glass, a flaky glass having a particle size not falling within the above range or a bright pigment such as a general pearl pigment may be mixed and adhered. In this specification, the particle size is measured using a laser diffraction / scattering particle size distribution analyzer: LA-920 (manufactured by Horiba Ltd.), and the “average particle size” is D50 (cumulative) in the obtained cumulative particle size distribution curve. It means the point of the particle size where the particle size distribution is 50%.

In addition to the metal soap, extender pigments and color pigments that are usually used in cosmetics can be used in the solid powder cosmetic of the present invention. For example, an inorganic powder such as mica and talc or a composite thereof, an organic powder such as nylon or a composite thereof, or a composite powder of the inorganic powder and the organic powder can be used.
As these powders, those having an inherently hydrophobic surface or those having a hydrophobic surface can be used, and these hydrophobic or hydrophobized powders are preferred because they have a better feeling of use. The hydrophobizing treatment includes, for example, silicone oil, metal soap, alkyl phosphoric acid, alkali metal salt or amine salt of alkyl phosphoric acid, N-mono long chain (carbon number 8 to 22) aliphatic acyl basic amino acid, perfluoro This is performed using a hydrophobizing agent such as a fluorine compound having an alkyl group. The method for hydrophobizing the powder is not particularly limited.

  The solid powder cosmetic of the present invention may contain an oil agent in addition to the metal soap and the powder. The blending of the oil is preferable because the moist feeling and the touch on the skin are improved. Examples of such oils include solid and semi-solid oils such as petrolatum, higher fatty acids and higher alcohols; fluid oils such as liquid paraffin, ester oil and silicone oil; fluorine oils such as perfluoropolyether and perfluorodecalin Is mentioned. The oil agent may be used alone or in a plurality of types. In the solid powder cosmetic of the present invention, it is 30% by mass or less, more preferably 20% by mass or less, particularly preferably in the cosmetic base material. Is blended in a range of 15 mass% or less.

  In the solid powder cosmetic of the present invention, various additives for further improving the performance and quality of the product can be appropriately blended as long as the effects of the present invention are not impaired. When blending these additives, it is preferable to blend by mixing the mixed liquid and the powder together with the powder when the mixed liquid and the powder are mixed.

EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, the technical scope of this invention is not limited by these Examples. In addition, the numerical value in a table | surface shows content (mass%). Prior to the examples, the evaluation methods employed in each example will be described. However, Example 3 is a reference example.

(1) Sensory evaluation test method Twenty female panelists applied test products to their skin and evaluated usability (softness). The evaluation criteria are as follows.
(Evaluation criteria)
More than 17 people answered good
12-16 people who answered good; ○
8-11 people who answered that it was good;
The number of people who answered that it is good is 7 or less; ×

(2) Drop strength evaluation test method Repeatedly drop a test article (filled metal dish) on a plywood board with a height of 50 cm to a thickness of 25 mm in an upright direction, and the number of times it takes until an abnormality such as chipping, cracking or cracking occurs. evaluated. The evaluation criteria are as follows.
(Evaluation criteria)
◎: 11 times or more ○: 7 to 10 times △: 5 to 6 times ×: 4 times or less

Examples 1-4, Comparative Examples 1-3
A solid powder cosmetic was prepared with the composition shown in Table 1 below, and the test was conducted. The results are also shown in Table 1.

Method for preparing solid powder cosmetic A: Mix components 1-3, heat to 70 ° C. and dissolve.
B: Components 4 to 28 are uniformly mixed.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C100 and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] Thus, a solid powder cosmetic was obtained by applying pressure molding under the conditions shown in Table 1 and press molding and removing light isoparaffin by heating and drying at 70 ° C.
In Comparative Example 3, pressure molding was performed without applying vibration.

  As shown in Table 1, Examples 1 to 4 of the present invention were excellent in use characteristics and drop strength.

  When a solid powder cosmetic was prepared with the following component composition and subjected to the above-described evaluation test, all were excellent in use characteristics and drop strength. In addition to these effects, the dome-shaped solid powder eye shadow of Example 9 exhibited gloss after application and higher design properties.

Example 5: Domed solid powder face color (component) (mass%)
1. Methylphenyl polysiloxane * 1 1.0
2. White petrolatum 1.5
3. Tri (capryl / capric acid) glycerin 2.5
4). Mica balance 5. Synthetic phlogopite * 2 20.0
6). Aluminum stearate 3.0
7). Polyalkyl acrylate * 4 5.0
8). Silicic anhydride 5.0
9. Titanium oxide 1.0
10. Covered with stearoyl aluminum glutamate (4%)
Red 226 0.1
11. Yellow No. 4 aluminum lake 0.1
12 Bengala 0.1
13. Mica titanium 20.0
14 Iron oxide coated glass powder * 9 10.0
15. Titanium oxide coated glass powder * 8 20.0
16. Tocopherol 0.1
17. Methylparaben 0.2
18. Sodium dehydroacetate 0.1
* 9: Metashine MC1080KR (manufactured by Nippon Sheet Glass Co., Ltd.)

(Production method)
A: Components 1 to 3 are mixed, heated to 70 ° C. and dissolved.
B: Components 4 to 18 are mixed uniformly.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C100 and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] Vibration was applied under the same conditions as in Example 1 to form a 5 mm dome shape, and pressure molding was performed, and light isoparaffin was removed by heating and drying at 70 ° C. to obtain a dome-shaped solid powder face color.

Example 6: Domed solid powder teak color (component) (mass%)
1. Methylphenyl polysiloxane * 1 1.0
2. White petrolatum 1.5
3. Tri (capryl / capric acid) glycerin 2.5
4). Mica balance 5. Synthetic phlogopite * 2 40.0
6). Aluminum stearate 3.0
7). Talc 5.0
8). Barium sulfate 5.0
9. Yellow No. 4 aluminum lake 0.1
10. Bengala 0.5
11. Mica titanium 20.0
12 Iron oxide coated glass powder * 9 10.0
13. Tocopherol 0.1
14 Methylparaben 0.2
15. Sodium dehydroacetate 0.1

(Production method)
A: Components 1 to 3 are mixed, heated to 70 ° C. and dissolved.
B: Components 4 to 15 are mixed uniformly.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] Then, vibration was applied under the same conditions as in Example 1 and pressure molding was performed, and light isoparaffin was removed by heating and drying at 80 ° C. to obtain a dome-shaped solid powder teak color.

Example 7: Domed solid powder foundation (component) (mass%)
1. Liquid paraffin 5.0
2. Diisostearyl malate 2.0
3. Dimethylpolysiloxane * 10 5.0
4). Mica balance 5. Synthetic phlogopite * 2 10.0
6). Aluminum stearate 3.0
7). Nylon powder * 3 5.0
8). Silicic anhydride 5.0
9. Titanium oxide 20.0
10. Yellow iron oxide 2.0
11. Black iron oxide 0.2
12 Bengala 0.5
13. Mica titanium 20.0
14 Talc 10.0
15. Cross-linked methylsiloxane powder * 11 3.0
16. Tocopherol 0.1
17. Methylparaben 0.2
18. Sodium dehydroacetate 0.1
* 10: KF-96A (manufactured by Shin-Etsu Chemical Co., Ltd.)
* 11: Trefill E-506S (Toray Dow Corning)

(Production method)
A: Components 1 to 3 are mixed, heated to 70 ° C. and dissolved.
B: Components 4 to 18 are mixed uniformly.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] In order to obtain a dome-shaped solid powder foundation, vibration was applied under the same conditions as in Example 1 to perform pressure molding, and light isoparaffin was removed by heating and drying at 80 ° C.

Example 8: Domed solid powder foundation (component) (mass%)
1. Liquid paraffin 5.0
2. Diisostearyl malate 2.0
3. Dimethylpolysiloxane * 10 5.0
4). Mica balance 5. Synthetic phlogopite * 2 10.0
6). Aluminum stearate 3.0
7). Nylon powder * 3 5.0
8). Silicic anhydride 5.0
9. Titanium oxide 20.0
10. Yellow iron oxide 2.0
11. Black iron oxide 0.2
12 Bengala 0.5
13. Mica titanium 20.0
14 Talc 10.0
15. Hemp cellulose powder * 12 3.0
16. Tocopherol 0.1
17. Methylparaben 0.2
18. Sodium dehydroacetate 0.1
* 12: Hemp cellulose powder (manufactured by Tosco)

(Production method)
A: Components 1 to 3 are mixed, heated to 70 ° C. and dissolved.
B: Components 4 to 18 are mixed uniformly.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] In order to obtain a dome-shaped solid powder foundation, vibration was applied under the same conditions as in Example 1 to perform pressure molding, and light isoparaffin was removed by heating and drying at 80 ° C.

Example 9: Domed solid powder eye shadow (component) (mass%)
1. White petrolatum 3.0
2. Methylphenyl polysiloxane * 1 5.0
3. Diisostearyl malate 6.0
4). Octyldodecanol 3.0
5. Sorbitan monoisostearate 0.5
6). The rest of talc Synthetic phlogopite * 13 5.0
8). Boron nitride * 14 30.0
9. Aluminum stearate 3.0
10. Titanium oxide coated glass powder * 5 5.0
11. Titanium oxide coated synthetic phlogopite * 15 5.0
12 Titanium oxide / anhydrous silica composite coated mica titanium * 16 5.0
13. Bengala 0.1
14 Tocopherol 0.1
15. Methylparaben 0.2
16. Sodium dehydroacetate 0.1
17. Silver-coated glass powder (average particle size 25 μm) * 17 Spray * 13: PDM-40L (Topy Industries, Ltd.)
* 14: SHP-5 (made by Mizushima Alloy Iron Company)
* 15: Prominence RH (Topy Industries, Ltd.)
* 16: Chimiron Splendid Gold (Merck)
* 17: Metashine ME2025PS (manufactured by Nippon Sheet Glass Co., Ltd.)

(Production method)
A: Components 1 to 5 are mixed and heated to 70 ° C. to dissolve.
B: Components 6 to 16 are mixed uniformly.
C: A was added to B and uniformly dispersed, and after pulverization, a cosmetic base material was obtained.
D: After mixing 100 parts by mass of C and 40 parts by mass of light isoparaffin [IP solvent 1620MU (made by Idemitsu Kosan Co., Ltd.)] Then, vibration was applied under the same conditions as in Example 1 to perform pressure molding, and light isoparaffin was removed by heating and drying at 80 ° C.
E: Thereafter, 50 parts by mass of Component 17 was uniformly mixed with 50 parts by mass of isopropyl alcohol, sprayed onto the surface of D using a spray, and adhered, to obtain the desired dome-shaped solid powder eye shadow.

  According to the method of the present invention, a solid powder cosmetic having a sufficient drop strength while being three-dimensionally molded and having a soft usability is provided. Specifically, a face color, a cheek color, an eye shadow, an eyebrow It can be applied to makeup cosmetics that require excellent design properties such as foundations.

Claims (8)

After the cosmetic base material and the volatile hydrocarbon solvent are mixed and filled in the container, it is pressure- molded at a pressure of 1 to 5 kg / cm ² so that the surface is three-dimensionally molded . A method for producing a solid powder cosmetic by a wet filling method in which a hydrocarbon solvent is removed at a temperature of 60 to 100 ° C. , and 0.5 to 5% by mass of metal soap with respect to the cosmetic base material ,
Mica and / or talc,
5.0 to 40.0% by mass of synthetic phlogopite with respect to the cosmetic base material;
Cosmetic base solid or semi-solid oil of 20 wt% or less with respect to material and / or the flow oil to <br/> the additional inclusion in the cosmetic base material,
Using fatty acid aluminum as the metal soap,
And during molding, frequency 10 to 40 kHz, 0.1 to 5 seconds and held in a state of vibration was pressurized granted further pressure 0.1 to 2 seconds of the amplitude 10 to 100 [mu] m, press-molding, the highest portion and the deepest A method for producing a solid powder cosmetic , wherein the height difference of the part is 3 mm or more . The method for producing a solid powder cosmetic according to claim 1, further comprising titanium mica. The method for producing a solid powder cosmetic according to claim 1 or 2, further comprising an organic powder or a composite thereof. Further, titanium oxide, red No. 202, aluminum stearoyl glutamate coated red No. 226, yellow No. 4 aluminum lake, Bengala, ultramarine blue, ultramarine encapsulated silica flakes, silicone treated ultra blue encapsulated silica flakes, titanium oxide coated glass powder, silver coated glass powder, polyethylene Solid powder makeup according to any one of claims 1 to 3, which contains at least one selected from terephthalate / polyurethane-11 / aluminum laminated powder, silicone-treated mica titanium and silicone-treated titanium oxide-coated glass powder. Manufacturing method. The method for producing a solid powder cosmetic according to any one of claims 1 to 4, wherein the fatty acid constituting the fatty acid aluminum is a fatty acid having 12 to 18 carbon atoms. The method for producing a solid powder cosmetic according to any one of claims 1 to 5, wherein the volatile hydrocarbon solvent is light liquid paraffin and / or isododecane. Pressed powder cosmetic method according to any one of claims 1 to 6 the height difference between the topmost portion and the deepest portion is 3 to 10 m m moldings surfaces. Method for producing a solid powder cosmetic according to still any one of claims 1 to 7, Ru is adhered to the glass flakes having an average particle diameter of 20~60μm the surface.