JP2013107857A - Skin external preparation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that, though drinking water including the water extract of humic shale is known heretofore, the drinking water includes fulvic acid, has strong acid taste and astringency, and is not suitable for drinking, and to provide a skin external preparation which uses the water extract of humic shale and can simply and easily feed mineral derived from humic shale into the human body or animal.SOLUTION: The skin external preparation includes the water extract of humic shale and takes the form of a creamy shape, an ointment shape or an adhesive preparation.

Description

The present invention relates to an external preparation for skin, and more particularly to an external preparation for skin that can easily and easily ingest a plant-derived mineral into a human body or an animal.
Moreover, this invention relates to the mineral absorption promoter which consists of this skin external preparation.

In recent years, with the spread of health consciousness, various drinking waters containing micronutrients such as minerals have been proposed and generally provided as functional drinking waters having effects such as health promotion and disease prevention.
For example, drinking water containing plant-derived minerals containing a water extract of corroded mudstone called a Humic Shale is known. The Humic Shale is a rock derived from the deposits of a rainforest about 100 million years ago and can be mined in Utah, USA. The water extract of Humic Shale contains nearly 70 kinds of minerals, and by drinking these, minerals that are lacking in the present day can be taken into the body.
However, there is a problem that the water extract of Humic Shale contains fulvic acid in addition to the above minerals. Fulvic acid is a strongly acidic substance having an acidity of about 2.7, has a strong acidity and astringency, and is not suitable for drinking, which is one cause of the unpopularity of the water extract of Humic Shale.

Patent Document 1 listed below discloses a method for producing drinking water using a water extract of Humic Shale.
Moreover, the following patent document 2 discloses a soap containing an extract of fumic shale. However, in the invention described in Patent Document 2, since the extract of humanic shale is applied to the skin as soap, the mineral is washed out before being absorbed from the skin, and as a result, there is no mineral absorption effect. is there.

Japanese Patent No. 4040077 JP 2007-308673 A

Accordingly, an object of the present invention is to provide an external preparation for skin, which uses a water extract of human shale and can easily and easily take minerals derived from human shale into a human body or animal.
Another object of the present invention is to provide a mineral absorption promoter comprising the external preparation for skin.

The invention described in claim 1 is a creamy external preparation for skin containing a water extract of a Humic shale.
The invention according to claim 2 is an ointment-like external preparation for skin comprising a water extract of a Humic shale.
The invention described in claim 3 is an external preparation for skin in the form of a patch containing a water extract of Humic Shale.
Invention of Claim 4 is a skin external preparation in any one of Claims 1-3 which further contains polyacrylate cross polymer-6.
Invention of Claim 5 is a mineral absorption promoter which consists of a skin external preparation in any one of Claims 1-4.

  According to the present invention, since the water extract of Humic Shale is used in the form of cream, ointment or patch, plant-derived minerals are good through the skin without feeling the strong acidity and astringency of fulvic acid. Can be ingested.

It is a graph which shows the particle size analysis result of the particulate mineral contained in the water extract of the Humic shale prepared in Example 1.

Hereinafter, the present invention will be described in more detail.
Humic shale used in the present invention is corroded mudstone derived from sediments of a rainforest about 100 million years ago, and is mined in Utah, USA. Humic shale is known, and is described in, for example, Patent Documents 1 and 2 described above. Further, it is commercially available, and is commercially available as, for example, the trade name Ultimate Solution from LEJ Corporation.

The water extract of the Humic shale can be easily obtained by immersing the Humic shale and water, preferably for 48 hours to 72 hours, and the water extract contains minerals and other components. It is presumed that the complex is dissolved or dispersed as a particle size of 80 nm to 800 nm.
As the extraction solvent, purified water subjected to reverse osmosis membrane treatment is preferably used.
As for the temperature of the water which is an extraction solvent, 6-25 degreeC is preferable, for example.
The water extract of the Humic Shale can also be powdered by spray drying.

  In the present invention, the water extract of humanic shale is used in the form of cream, ointment or patch.

There is no particular limitation on the method for preparing the aqueous extract of the Humic Shale into a creamy skin external preparation, and any conventionally known method can be employed. The base may be hydrophilic or lipophilic. Various conventionally known additives such as oils, surfactants, emulsifiers, alcohols, moisturizing ingredients, thickeners, antiseptic / antifungal agents, antioxidants, chelating agents, pH adjusters, UV absorbers UV scattering agents, pigments, dyes, fragrances, vitamins, amino acids, and the like can be blended. In addition, the creamy external preparation for skin according to the present invention is preferably 8,000 mPa · s (30 ° C.) or more, and more preferably 20,000 to 200,000 mPa · s (30 ° C.).
In addition, the water extract of humanic shale may be encapsulated in liposomes. The means is not particularly limited. For example, phospholipids such as phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine and the like can be used as a constituent component of the liposome, and can be prepared with other additives as necessary using an extruder or a high-pressure emulsifier.

  Moreover, it does not restrict | limit especially as a method in particular which prepares the water extract of a Humic shale to an ointment-form skin external preparation, Any conventionally well-known method can be employ | adopted. For example, fat, wax, petrolatum, lanolin, polyethylene glycol or the like is used as a base, and the above-mentioned various additives are used in combination as necessary, and the base is heated to, for example, 60 to 70 ° C. May be added and sufficiently dispersed.

  In addition, there is no particular limitation on the form of the patch of the water extract of the Humic Shale, and any conventionally known method can be employed. For example, as a sheet-like base material, a natural fiber or synthetic fiber non-woven fabric or woven fabric is used, and the water extract is directly impregnated therewith, or the above cream-like or ointment-like skin external preparation is applied to the sheet-like base material. A patch can be obtained by application or the like. Examples of the material for the sheet-like substrate include polyester, nylon, polypropylene, polyethylene, rayon, acetate, acrylic, polyurethane, polyamide, and cotton. The thickness of the sheet-like base material is preferably 0.1 to 5 mm, for example, and the shape is square, rectangular, elliptical, circular, heart-shaped, semicircular, semielliptical, trapezoidal, triangular, along the application site. Examples include shape.

  When the external preparation for skin of the present invention is in the form of cream or ointment, for example, the water extract of Humic Shale powdered by spray drying, for example, the mineral is 0.1 to 30 relative to the entire external preparation for skin. It is contained in the range of mass%, preferably 0.1-10 mass%, 5-10 mass%.

  The external preparation for skin of the present invention preferably contains polyacrylate crosspolymer-6. Polyacrylate crosspolymer-6 is obtained by crosslinking a copolymer of acryloyldimethyltaurate ammonium, dimethylacrylamide, lauryl methacrylate and laureth methacrylate-4 with trimethylolpropane triacrylate. For example, when a cream is prepared using an aqueous extract of Humichel shale that has been pulverized by spray drying, if the powder has a high concentration of 5% by mass or more in the formulation, the aqueous dispersion of the powder is low. Combined with having a pH, it becomes difficult to uniformly disperse the powder in the cream, and the intake efficiency of plant-derived minerals through the skin may be deteriorated. From the viewpoint of the effect of the present invention, the polyacrylate cross polymer-6 is preferably added in the range of 1 to 10% by mass in the external preparation for skin.

  The external preparation for skin of the present invention is used by being applied or affixed to a local body of a human or animal. The external preparation for skin of the present invention may be applied to any part of the body, and examples thereof include legs, abdomen, arms, chest, back, neck, face and the like.

  Since the skin external preparation of the present invention uses the water extract of Humic Shale in the form of cream, ointment or patch, the plant-derived mineral can be passed through the skin without feeling the strong acidity and astringency of fulvic acid. Can be ingested well and can also be used as a mineral absorption promoter.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further, this invention is not restrict | limited to the following example.

Example 1
Humic shale (corrosion mudstone) mined from a mine in Emery, Utah, USA was introduced into an extraction tank containing purified water at 25 ° C. The purified water has been subjected to a reverse osmosis membrane treatment that passes through a 0.0005 μm reverse osmosis filter and a UV sterilization treatment.
Next, the water extraction process of the Humic shale was performed. This treatment involves immersing the Humic shale in the extraction tank for 48 hours.
After 48 hours, the residue was removed from the extraction tank, and the water extract of the humic shale was recovered, passed through a 0.22 μm filter for the purpose of removing microorganisms, and spray-dried to remove the water of the humic shale. An extract powder was obtained.
Table 1 below shows the results of analysis of minerals contained in the powder of the water extract of the humanic shale by the above extraction operation. In addition, the result shown in Table 1 is an analysis result of a 100-fold dilution of the powder.

  Moreover, the particle size analysis result of the particulate mineral contained in the water extract of the Humic shale by the above extraction operation is shown in FIG.

  Subsequently, 5% by mass of the above-mentioned aqueous extract of the Humic Shale, 2% by mass of the polyacrylate crosspolymer-6, and glycerin, horseradish root extract, ethylhexyl glycerin, hyaluronic acid, glycyrrhizic acid as other additives 2K, jojoba oil, rice bran oil, vitamin E, pearl barley extract, aloe vera extract, rosehip oil and a surfactant were added in appropriate amounts, and the remainder was mixed with water to prepare a creamy skin external preparation.

Example 2
The following ingredients were mixed to prepare an ointment-like skin external preparation.

5% by mass of water extract of the water extract of the Humic Shale of Example 1
90% by weight of white petrolatum
Liquid paraffin 2.5% by mass
Beeswax 2.5% by mass

Example 3
A non-woven fabric made of polyester was placed on a polypropylene sheet having a thickness of 0.5 mm, and the ointment-like external preparation for skin obtained in Example 2 was applied thereto to a thickness of 1 mm to prepare a patch. did.

An appropriate amount of the creamy external preparation for skin prepared in Example 1 was applied twice a day to an adult woman whose face was burned. Two weeks after the start of application, the area of burns decreased to 70% with respect to the first day of application, decreased to 30% after one month, and almost disappeared after six months.
In contrast, a creamy skin external preparation was prepared in the same manner as in Example 1 except that the water extract powder of Humic Shale was not added. After 2 weeks, the area of the burn was maintained at 100% of the first day of application. After 1 month, the burn area changed to a colloidal shape, and after 6 months, the colloidal area remained in a bruise pattern. It became.
From the above results, the mineral absorption effect of the creamy external preparation for skin prepared in Example 1 was confirmed.
When the skin external preparations prepared in Examples 2 and 3 were tested in the same manner, the same results as described above were obtained.

Claims (5)

  A creamy skin external preparation containing an aqueous extract of Humic Shale.   An ointment-like skin external preparation containing a water extract of Humic Shale.   A skin external preparation in the form of a patch containing a water extract of Humic Shale.   The external preparation for skin according to any one of claims 1 to 3, further comprising a polyacrylate crosspolymer-6.   The mineral absorption promoter which consists of a skin external preparation in any one of Claims 1-4.

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