JP3283305B2 - Cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic in which various cosmetic ingredients are supported in pores of a porous natural plant-based material.

[0002]

2. Description of the Related Art Conventionally, in the cosmetic manufacturing field,
Attempts have been made to impart various functions to cosmetics using porous materials. For example, a cosmetic component is adhered and adsorbed to an organic porous powder made of nylon or an inorganic porous powder made of silica to achieve a sustained release effect of the cosmetic component and to improve the feeling of use. A method has been proposed (Japanese Patent Application Laid-Open No. Sho 62-205017, Japanese Patent Publication No. 4-47644).
issue).

[0003]

However, conventional porous powders used in cosmetics have a problem that the types of cosmetics that can be contained in the pores are limited. Furthermore, a sufficient amount of cosmetics cannot be included, and the cosmetic components carried in the pores may be decomposed. Furthermore, conventional porous powders are irritating to the skin,
There is a problem that the usability is not good.

[0004] Therefore, the present invention is not limited to the type of cosmetic ingredients contained, can contain a sufficient amount of cosmetic ingredients, and is less irritating to the skin and provides a feeling of use. Another object of the present invention is to provide an excellent cosmetic.

[0005]

In order to achieve the above object, the cosmetic according to the present invention comprises a porous natural plant-based material .
A perforated starch and include those having a supported cosmetic ingredients in the hole of the perforated starch, the porous starch, enzyme
0.8 to 20.0 µm diameter cylinder by elementary treatment
A plurality of small pores are formed evenly on the surface,
A decomposition rate of 5 to 60% .

[0006] preferably contains an oil component having a low melting point as a pre-Symbol cosmetic ingredients. Further, it is preferable that a coating is applied to the surface of the porous starch as a porous natural plant-based material having the cosmetic component carried in the pores.

[0007]

According to the present invention, a porous natural plant-based material having a plurality of pores on its surface having a diameter larger than that of a conventional porous powder is used, and a cosmetic ingredient is contained in the pores of the natural plant-based material. Since the cosmetic component is supported, it is possible to support a cosmetic component having a relatively large particle size, that is, more types of cosmetic components can be supported in the pores. Can be contained.

[0008] In addition, the porous natural plant-based raw material has no active sites for acids and bases, and can prevent decomposition and alteration of the cosmetic component carried in the pores. Further, the natural plant-based raw material has less irritating property to the skin, is excellent in uniformity of the coating film, and can give a soft feeling of use (blooming effect) to the skin.

Further, the present invention will be described in more detail. Porous natural vegetable KeiHara fee for use in the present invention is a perforated starch is a natural polysaccharide. With the regulating process is relatively easy, Ru relatively holes of large diameter are evenly formed
At the point, we use this perforated starch.

[0010] Porous starch is a spherical starch having a particle diameter of 3 to 35 µm, and has a plurality of cylindrical pores formed on the surface thereof by an enzyme treatment. When the degree (volume percentage) at which starch is decomposed by enzymatic treatment is expressed as "decomposition rate", the decomposition rate in the present invention is 5 to 60.
%, Preferably 20 to 50%. If the decomposition rate is less than 5%, the total volume of the pores of the perforated starch is reduced, and the amount of the cosmetic component carried in the starch is reduced. If it exceeds 60%, the mechanical properties of the perforated starch are reduced. Strength decreases. The decomposition rate can be controlled by changing the reaction conditions such as the type of enzyme, action time, and reaction temperature.

As the starch, natural plant polysaccharides such as corn, potato, sweet potato and the like can be used. Particularly, corn starch is preferred from the viewpoint that pores having a sufficient diameter for supporting the cosmetic component can be formed.

The preparation of perforated starch is made possible by allowing starch-degrading enzymes (α, β-amylase, glucoamylase, etc.) to act on the starch. By such an enzyme treatment, a large number of pores having a diameter of 0.8 to 20.0 μm independent from each other can be formed from the surface to the inside of the starch.

The cosmetic component carried in the pores of the porous starch of the present invention includes, for example, organic or inorganic powders; humectants, surfactants, vitamins, antibacterial agents and other cosmetics having desired functions. Functional substances to be imparted include at least one of fats and oils and waxes such as saturated fatty acid mono-, di- and triglycerides.

As the organic / inorganic powder of the present invention, at least one of silica, titanium oxide, zinc oxide, red iron oxide, navy blue, ultramarine, talc, mica, sericite and the like, which are dyes or pigments, is used. can do.

The functional substances used in the present invention include humectants (including emollients) such as glycerin, propylene glycol, sorbitol, polyethylene glycol, sodium hyaluronate, sodium pyrrolidone carboxylate, sodium lactate, urea, and collagen; Any of cosmetics such as menthol, a refreshing agent, vitamins, fragrances and the like which add desired functions can be used.

Preferred examples of fats and oils include saturated fatty acids, saturated fatty acid glycerides, spermaceti (cetyl palmitate) and the like. In particular, in the preparation of cosmetics, from the viewpoint of using a melting dispersion cooling method in which oils and fats are first melted, supported in pores of natural plant-based raw materials, and then cooled and solidified, and the cosmetic is applied to the skin. From the viewpoint of melting by body temperature or frictional heat at this time, a solid material having a melting point of 32 to 50 ° C is preferable.

The porous natural plant-based material of the present invention can form pores having a diameter about 10 to 10,000 times larger than that of a conventional porous powder. As a result, the amount of the cosmetic component carried in the pores is reduced to approximately 1.
It can be about five times. In addition, it is also possible to carry in the pores an amorphous polymer such as a fibrous protein such as collagen and a powdered crude drug, which is difficult to include in the pores with the conventional porous powder. Here, carrying means that the cosmetic component is in a state of being filled, included, included, buried, adsorbed, fixed, or the like in the pores of the porous natural plant-based material.

Next, preferred embodiments of the cosmetic of the present invention will be described. In the first embodiment, an organic / inorganic powder is once supported in the pores of a porous natural plant-based material by a powder / powder mixing method, and then a functional substance is adsorbed between the fine powders in the pores. Alternatively, the organic / inorganic powder and the functional substance are simultaneously supported in the pores of the porous powder by a powder / powder mixing method.

In a second embodiment, a functional substance is dissolved or uniformly dispersed in a molten oil or wax,
Porous powder was gradually added therein, and degassing was performed several times during heating and mixing of the contents, followed by cooling and stirring the contents, thereby obtaining a porous natural plant-based raw material. The functional substance-containing fats and oils / waxes are carried in the pores.

In a third embodiment, an organic / inorganic powder, a functional substance, and a fat / oil / wax are carried in the pores of a porous natural plant-based raw material. The cosmetic according to such an embodiment can be prepared with a general-purpose mixing device for dry mixing, for example, an automatic mortar, mechanomill, ball mill, Henschel mixer, or the like. The cosmetic of Embodiment 1 can also be prepared by a wet method using a disper, a propeller mixer, an ultrasonic homogenizer, a mechanomill, or the like.

The cosmetic of the present invention can achieve a sustained release effect of the cosmetic component because the cosmetic component is carried in the pores of the porous natural plant-based raw material, and also has an antiseptic and a sterilizing agent. By supporting an irritating component such as an agent in the pores, it is possible to prevent the irritating component from directly adhering to the skin and to alleviate irritation to the skin. In addition, a cosmetic component that gives a rough feeling of use such as a cooling agent, zinc oxide, or titanium oxide is supported in the pores, so that the feeling of use of the cosmetic can be improved. Furthermore, since the functional substance is supported in the pores of the natural plant-based raw material, the stability of the functional substance can be improved.

The fats and waxes are carried in the pores, so that the fats and waxes are melted by body temperature when the cosmetic is applied to the body or frictional heat at the time of application, and the cosmetic is applied to the body. Only then can the cosmetic ingredients be released. Here, the fats and oils preferably have a low melting point (30 to 50 ° C.) that is melted by body temperature or frictional heat during application. In addition, fats and oils and waxes also function as components that give an emollient effect to cosmetics.

As described above, the surface of the porous natural plant-based raw material having the cosmetic component carried in the pores can be coated with an organic or inorganic substance. With such a coating, the release or dissolution rate of the cosmetic component carried in the pores can be controlled, and in particular, the cosmetic component can be naturally stored during preservation of the cosmetic against changes in the external environment such as high temperature and high humidity. By releasing or eluting from the plant-based raw material, it is possible to prevent the quality of the cosmetic from deteriorating.

Examples of such coating materials include talc, mica, sericite, kaolin, silica, titanium oxide, zinc oxide, red iron oxide, iron oxide, ultramarine, navy blue, boron nitride,
It is at least one kind of magnesium carbonate, bentonite, polymethacrylic acid ester, tar dye and the like.
The particle size of the coating material is １ ／ of the particle size of the natural plant-based material in order to apply a suitable coating to the natural plant-based material of the present invention.
The following are preferred.

The amount of the cosmetic component carried on the natural plant-based material can be determined based on the decomposition rate of the natural plant-based material and taking into account the porosity of the cosmetic component. The amount of the cosmetic component is preferably such that the cosmetic component is supported in the pores of the natural plant-based material and does not adhere to the surface of the natural plant-based material. However, there is no particular problem as long as a small amount of the cosmetic component adheres to the surface of the natural plant-based material.

The particle size of the cosmetics carried in the pores of the natural plant-based raw material is preferably smaller than the pores. There is no particular problem as long as the material can be pulverized to be supported in the pores of the natural plant-based material.

As the formulation of the cosmetic of the present invention, desired types such as body powder, powdered pack, powdered white powder, solid white powder, blusher, eyeshadow, powdered lipstick and lipstick can be selected. The mixing ratio of each component of the cosmetics is different from the formula,
It is appropriately changed according to a desired function.

Since the conventional porous powder has a small pore diameter, it has been usual to incorporate a cosmetic component into the pores by a wet method using a volatile solvent, but according to the present invention, Cosmetics can be supported on natural plant-based materials by a dry method based on a powder / powder mixing method. As a result, in the cosmetic of the present invention, the labor and time for removing the volatile solvent in the production process can be omitted. However, this does not prevent the cosmetic of the present invention from being produced by a wet method.

[0029]

Next, an embodiment of the present invention will be described. In the following description, the body powder is taken as an example, and “parts” of the compounding amount indicates “parts by weight”, and “%” indicates “% by weight”.

Example 1 Using a mechanomill (Okada Seiko Co., Ltd.), silica (3
Ryo Kasei Corporation MKC silica 0.6 (particle size 0.6μ)
m)) 13 parts and 6 parts of glycerin were stirred for 10 minutes.
Next, a stainless steel ball (2mmφ) is filled into it.
And perforated starch (San-E Saccharification Co., Ltd., decomposition rate: 43%
(Specific surface area 30.0m 2 / g: EGME method)
And stir for 30 minutes until the cosmetic ingredients in the pores of the perforated starch
Was obtained as a composite powder. Furthermore, this composite powder
Add 10 parts of talc and 5 parts of magnesium carbonate and mix
did.

FIG. 1 shows an electron micrograph of the perforated starch.
FIG. 2 shows an electron micrograph of the composite powder. According to FIG. 1, the perforated starch has a substantially spherical shape, a diameter of about 1 μm, and a plurality of small holes having a uniform circular opening are observed. According to FIG. 2, it is observed that silica having a fine spherical shape is supported in the pores of the porous starch.

Example 2 A heating jacket was attached to a mechano mill,
At saturated fatty acid glyceride (melting point: 37-39 ° C) 2
While 0 parts, 2 parts of solid paraffin (heat-dissolved) and 6 parts of glycerin were heated and dissolved and stirred in a liquid state, 72 parts of perforated starch was gradually added thereto. At this time, the content changes from a liquid phase to a solid phase with the addition of the perforated starch. (While the content is in a slurry state, the content is increased several times in order to increase the embedding efficiency of the cosmetic component in the pores. Degassing was performed.)
Continued to add perforated starch, and 30 minutes from the end of the addition.
Heating and stirring were performed for minutes. Next, the heating jacket was replaced with a cooling jacket, and stirring was further performed for 30 minutes while keeping the contents at 0 to 5 ° C. to obtain a composite powder.

Further, 10 parts of talc and 5 parts of magnesium carbonate were added to and mixed with 85 parts of the obtained composite powder.
FIG. 3 shows an electron micrograph of this composite powder cosmetic.

Example 3 In the same manner as in Example 2, 8 parts of a saturated fatty acid glyceride (melting point: 37-39 ° C.) and 6 parts of glycerin were mixed with silica (MKC silica 0.6 (Mitsubishi Kasei Co., Ltd., 0.6% particle size)). 6
μm)) after addition of 6 parts, using 80 parts of perforated starch,
A composite powder in which saturated fatty acid glyceride and glycerin were supported between the silica particle layers was obtained.

Further, to 85 parts of the obtained composite powder, 10 parts of talc and 5 parts of magnesium carbonate were added and mixed. An electron micrograph of this composite powder is shown in FIG.

Example 4 80 parts of the composite powder obtained in Example 2 and 15 parts of silica (AEROSIL # 300, manufactured by Nippon Aerosil Co., Ltd.) were treated with a mechanomill equipped with a cooling jacket to reduce the content to 0 to 0. While maintaining the temperature at 5 ° C., stirring was performed for 2 hours to obtain a composite powder. Further, talc 10 was added to 85 parts of the obtained composite powder.
And 5 parts of magnesium carbonate. An electron micrograph of this composite powder is shown in FIG. According to FIG. 5, it is observed that the surface of the composite powder is coated with an inorganic material.

Comparative Example 1 Silica (Mitsubishi Kasei Co., Ltd.) was prepared in the same manner as in Example 1.
Company, MKC silica 0.6 (particle size 0.6 μm)) 13
Parts, glycerin 6 parts and starch (decomposition rate: 0% (specific surface area)
15.7m 2 / g: EGME method)) Prepared using 81 parts
A powder was obtained. To 85 parts of the prepared powder, 10 parts of talc and
5 parts of magnesium carbonate was added and mixed.

Comparative Example 2 A saturated fatty acid glyceride was prepared in the same manner as in Example 2.
(Melting point: 37-39 ° C) 20 parts, solid paraffin 2 parts
(Heat-dissolved), 6 parts of glycerin and starch (min.
Dissolution rate: 0% (specific surface area 15.7m 2 / g: EGME
Method)) A prepared powder was obtained using 72 parts. This prepared powder 8
Add 5 parts of talc and 5 parts of magnesium carbonate to 5 parts
And mixed.

Comparative Example 3 80 parts of the composite powder obtained in Example 2 and 15 parts of silica (AEROSIL # 300, manufactured by Nippon Aerosil Co., Ltd.) were mixed in a simple mixture of 85 parts, 10 parts of talc and 5 parts of magnesium carbonate. Was added and mixed.

Examples 1 to 4 and Comparative Examples 1 to 3 were applied by five panelists so that they were lightly rubbed at the time of use, and were subjected to sensory evaluation. As shown in Tables 1 and 2, perforated starch was used. The body powder containing the obtained composite powder was particularly excellent in smoothness during use, moist feeling over time, and the like. The evaluation was performed in four stages with the lapse of time after the application, and the results shown in Tables 1 and 2 were obtained.

[0041]

[Table 1]

[Table 2]

Next, examples of formulating cosmetics according to the present invention will be shown. “Powder pack” Composite powder 1 (silica and preservative) 2.0% Composite powder 2 (silica and fragrance) 3.0 Composite powder 3 (saturated fatty acid glyceride and propylene glycol / sericite coating) 15.0 Kaolin 44.0 talc 14.0 zinc white 19.0 olive oil 2.0 polyoxyethylene (40 mol) sorbitan monolaurate 1.0 composite powder 1 (porous starch: 1.8, silica: 0.1, Preservative: 0.1) Composite powder 2 (porous starch: 2.4, silica: 0.45, fragrance: 0.3) Composite powder 3 (porous starch: 9.7, saturated fatty acid glyceride: 2) 2.0, propylene glycol: 1.0, sericite: 2.3)

“Powder powder” Composite powder 4 (iron oxide and flavor) 15.0% talc 75.0 Zinc white 5.0 Zinc stearate 5.0 Composite powder 4 (perforated starch: 12.8, oxidized Iron: 1.7, fragrance: 0.5)

“Solid white powder” Composite powder 5 (silica and fragrance) 5.0% Composite powder 6 (iron oxide and propylene glycol) 5.0 Talc 41.0 Mica 25.0 Kaolin 10.0 Titanium dioxide 5. 0 squalane 2.0 sorbitan sesquioleate 3.0 sorbitol 4.0 composite powder 5 (porous starch: 4.0, silica: 0.7, flavor: 0.3) composite powder 6 (porous starch) : 4.0, iron oxide: 0.7, propylene glycol: 0.3)

“Blush” Composite powder 7 (titanium dioxide and preservative) 10.0% Composite powder 8 (iron oxide and fragrance) 10.0 Composite powder 9 (saturated fatty acid glyceride and propylene glycol) 5.0 talc 25.0 Serisant 20.0 Kaolin 20.0 Zinc white 5.0 Zinc stearate 5.0 Composite powder 7 (perforated starch: 8.5, titanium dioxide: 1.
0, preservative: 0.5) Composite powder 8 (perforated starch: 8.5, iron oxide: 1.0, fragrance: 0.5) Composite powder 9 (perforated starch: 3.0, saturated fatty acid) (Glyceride: 1.0, propylene glycol: 1.0)

“Eye shadow” Composite powder 10 (silica and flavor) 2.0% Composite powder 11 (coated with cetyl palmitate and collagen talc) 12.0 Titanium dioxide 5.0 Talc 35.0 Iron oxide (red) 6.0 Iron oxide (yellow) 8.0 Iron oxide (black) 6.0 Pearl pigment 20.0 Carnauba wax 0.5 Lanolin derivative 2.0 Hexadecyl palmitate 3.0 Glycerin monostearate 0.5 Composite powder 10 (porous starch: 1.5, silica: 0.3, flavor: 0.2) Composite powder 11 (porous starch: 7.0, cetyl palmitate: 2.0, collagen powder: 1) 2.0, talc: 2.0)

“Powder (Baby Powder)” Composite Powder 12 (Silica and Fungicide) 53.0% Composite Powder 13 (Saturated Fatty Acid, Saturated Fatty Acid Glyceride and Fragrance) 40.0 Zinc Flower 3.0 Magnesium Stearate 4 0.0 composite powder 12 (porous starch: 46.2, silica: 6.3,
Fungicide: 0.5) Composite powder 13 (porous starch: 31.4, saturated fatty acid: 3.
8, saturated fatty acid glyceride: 3.8, flavor: 1.0)

"Lipstick" Composite powder 14 (silica and glycerin) 3.0% titanium dioxide 2.0 red 204 No. 0.6 orange 203 no. 1.0 Candelilla wax 9.0 ceresin 15.0 carnauba wax 5. 0 Lanolin 11.0 Liquid paraffin 18.0 Squalane 25.2 Isopropyl myristate 10.0 Appropriate perfume Appropriate amount Antioxidant Appropriate amount Complex powder 14 (perforated starch: 2.3, silica: 0.4, glycerin: 0.3)

[0049]

As described above, according to the present invention,
To provide a cosmetic composition that is not limited in the type of cosmetic ingredients contained therein, and that can contain a sufficient amount of cosmetic ingredients, and that is less irritating to the skin and has an excellent feeling upon use. Can be.

[Brief description of the drawings]

FIG. 1 is an electron micrograph of a perforated starch.

FIG. 2 is an electron micrograph of a composite powder obtained by Example 1 in which an inorganic powder is supported on perforated starch.

FIG. 3 is an electron micrograph of a composite powder obtained according to Example 2.

FIG. 4 is an electron micrograph of a composite powder obtained according to Example 3.

FIG. 5 is an electron micrograph of a composite powder provided with an inorganic coating obtained in Example 4.

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masazumi Koishi 30 Unomori, Sagamihara City, Kanagawa Prefecture (56) References JP-A-56-81512 (JP, A) JP-A-61-155308 (JP, A) JP-A-62-205017 (JP, A) JP-A-1-313413 (JP, A) JP-A-3-99008 (JP, A) JP-A-61-161213 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (4)

(57) [Claims] 1. A porous natural plant-based raw materialStarch as a material
And thisPerforated starchWith cosmetic ingredients carried in the pores
CosmeticsAnd The diameter of the perforated starch is 0.8-20.
A plurality of 0 μm cylindrical holes are evenly formed on the surface.
Degradation rate of 5 to 60% by the enzyme treatment
Cosmetics. 2. The degradation rate by the enzyme treatment is 20 to 20.
The cosmetic according to claim 1, which is 50%. 3. The cosmetic according to claim 1, wherein the cosmetic contains an oily component having a low melting point. 4. The cosmetic according to any one of claims 1 to 3, wherein a coating is applied to the surface of the perforated starch having the cosmetic component carried in the pores.