TWI618545B - Powder cosmetics for bathing - Google Patents

Abstract

The present invention provides a powder cosmetic for bath which can stably exhibit the function of magnesium hydride even after long-term storage. The solution is a powdery cosmetic for bath containing magnesium hydride and a component for moisture absorption. The magnesium hydride is preferably one which is microparticulated to have an average particle diameter of 10 to 120 μm. Further, it is more preferable to contain at least one powder selected from the group consisting of tangerine peel (citrus skin), pepper, Korean ginseng, ginger, angelica, and wormwood.

Description

Powdered cosmetics for bathing

The present invention relates to a powdered cosmetic for bath containing magnesium hydride.

Magnesium hydride is a compound formed by retaining hydrogen in a gap between metal atoms of magnesium. According to the reaction formula of the following formula (1), magnesium hydride reacts with water to decompose while releasing hydrogen.

MgH ₂ +2H ₂ O → Mg(OH) ₂ +2H ₂ ...(1)

There are various methods for producing magnesium hydride. For example, according to the methods disclosed in Patent Document 1 and Patent Document 2 below, magnesium hydride can be efficiently produced.

When the magnesium hydride is reacted with water, the gaseous hydrogen is dissolved in the water, and the oxidation-reduction potential (ORP) is moved to the reducing side to become functional water (hydrogen-containing water) having an antioxidant ability. This water is yet to be applied in a wide range of fields such as preventing skin aging, reducing oxidative stress, preventing adult diseases, and maintaining health through anti-aging.

Hydrogen-containing water having this function has also been tried as a skin care product. For example, Patent Document 3 listed below discloses a method for imparting an effect of suppressing or preventing skin aging (aging) to a skin care product or domestic water, which is characterized by an oxidation-reduction potential for a skin care product or domestic water directly contacting the skin. ORP = 0.80 - 0.047 pH or less, giving the same ORP as the skin, or the following reducibility. Further, Patent Document 4 listed below discloses a hydrogen generating agent which is prepared by embedding a powder of a hydride such as an alkaline earth metal hydride in a water-soluble compound such as polyethylene glycol, xylitol or trehalose. And documented its use in lotions and body washes.

Patent literature

Patent Document 1: Japanese Patent No. 4083786

Patent Document 2: Japanese Patent No. 4425990

Patent Document 3: Japanese Laid-Open Patent Publication No. 2000-119161

Patent Document 4: Japanese Patent No. 4384227

However, since magnesium hydride reacts with water, moisture or the like causes the magnesium hydride to be slowly decomposed, and the function of the magnesium hydride is difficult to be stably exhibited.

An object of the present invention is to provide a powdered cosmetic for bath which can stably exhibit the function of magnesium hydride even after long-term storage.

In order to achieve the above object, the inventors of the present invention conducted intensive studies, and as a result, completed the following invention.

That is, the powdery cosmetic for bath of the present invention is characterized by containing magnesium hydride and a component for moisture absorption.

According to the powdered cosmetic for bath of the present invention, the moisture-absorbing component removes the moisture to be contacted with the magnesium hydride, so that the magnesium hydride can be prevented from being slowly decomposed due to factors such as moisture, and even if it is stored for a long period of time, The function of magnesium hydride is stably exhibited.

In the powdery cosmetic for bath of the present invention, the magnesium hydride is preferably micronized to have an average particle diameter of 10 to 120 μm.

Accordingly, magnesium hydride has a slower reaction with water than other alkaline earth metal hydrides, but the surface area is increased by micronization, so that even if no acid or the like is used to promote the reaction, it is in contact with water, hot water or water-containing cosmetics. Predecessor Appropriate hydrogen can also be produced when a substance such as an aqueous substance is formulated. In addition, the roughness of magnesium hydride at the time of use was also improved.

The powdered cosmetic for bathing of the present invention is preferably prepared in an amount of not more than 10% by weight.

According to this, it is possible to suppress the decomposition of the magnesium hydride by the inherent moisture of the powdery cosmetic for bathing. For example, as a bathing material, an inorganic salt such as a sulfate, a sodium or a carbonate may be used. However, depending on the combination, if it is watery, it may agglomerate or may cause gas or the like to be deteriorated. As a result, These disadvantages can be suppressed by the use of the present invention.

In the powder cosmetic for bathing of the present invention, at least one powder selected from the group consisting of dried tangerine peel (citrus peel), pepper, Korean ginseng, ginger, angelica, and wormwood is further contained.

Accordingly, the synergistic effect of the blood-staining effect produced by them and the hydrogen-promoting effect by the hydrogen-containing water produced by magnesium hydride can be expected.

The powdered cosmetic for bath of the present invention may further contain a powder of at least one inorganic salt selected from the group consisting of sodium sulfate, sodium chloride, potassium chloride, magnesium sulfate, and alum. Further, a powder of at least one carbonate selected from the group consisting of sodium hydrogencarbonate, sodium carbonate, and sodium sesquicarbonate may also be contained.

The cosmetic powder for bath of the present invention contains 0.005 to 5% by weight of a selected from the group consisting of silicic acid anhydried, aluminum silicate, aluminum oxide, potassium oxide, sodium oxide, magnesium oxide, iron oxide, calcium oxide, and the like. At least one powder of the rock composition of these components is preferred. Further, it is preferred to contain the above-mentioned moisture absorbing component in an amount of from 1 to 99% by weight.

According to the powdered cosmetic for bath of the present invention, the moisture-absorbing component removes the moisture to be contacted with the magnesium hydride. Therefore, it is possible to prevent the magnesium hydride from being slowly decomposed due to factors such as moisture, and to hydrogenate even after long-term storage. The function of magnesium is stably presented.

The powdered cosmetic for bathing of the present invention is a cosmetic containing magnesium hydride, which is a cosmetic which is formulated with a water-containing substance such as water, hot water or a water-containing cosmetic precursor to produce functional water (hydrogen-containing water). Magnesium hydride reacts with water according to the reaction formula of the following formula (1) to decompose while releasing hydrogen.

MgH ₂ +2H ₂ O → Mg(OH) ₂ +2H ₂ ...(1)

The magnesium hydride used in the present invention is not particularly limited in its manner of obtaining, and can be efficiently produced, for example, according to the methods disclosed in Japanese Patent No. 4,083,786 and Japanese Patent No. 4,425,990.

Specifically, as disclosed in Japanese Patent No. 4,083,786, the raw material powder containing magnesium as a main component is stored in advance in a hydrogen atmosphere sealed in a sealed container, and the pressure of the hydrogen atmosphere in the sealed container is maintained at At the same time as the predetermined pressure, the temperature of the hydrogen atmosphere in the sealed container is maintained at a temperature which is a reaction between the magnesium and hydrogen molecules of the monomer to form magnesium hydride and the reverse reaction in a predetermined first period. The temperature corresponding to the predetermined pressure on the balance curve is high, and the temperature difference between the temperature and the temperature is within a predetermined value, thereby removing the coating on the surface of the raw material powder, and then returning to At room temperature, the temperature of the hydrogen atmosphere in the sealed container is maintained under the predetermined second period. The temperature is maintained at a temperature lower than a temperature corresponding to the predetermined pressure on the balance curve and a temperature difference between the temperature is within a predetermined value, thereby being produced from the raw material powder. Magnesium hydride. According to this method, magnesium hydride having a high hydrogenation rate can be efficiently produced. Further, as disclosed in Japanese Patent No. 4425990, it is also possible to produce a compressed product obtained by depositing a plurality of sheets containing magnesium as a main component and compressing them, without using a powder raw material, in a hydrogen atmosphere and hydrogen gas. reaction. According to this method, since the sheet containing magnesium as a main component is produced, it is possible to manufacture the magnesium hydride having a high hydrogenation rate more safely and efficiently than the method of producing a powder raw material which may cause dust explosion.

It should be noted that the hydrogenation rate refers to the percentage of hydrogen which is ideally occludable according to the molecular weight of MgH _{2 and the} molecular weight of Mg of 24, and the mass before and after hydrogen occlusion is measured in the production of magnesium hydride, according to the following formula. (2) Find.

The magnesium hydride obtained by the above method or the like usually has a hydrogenation ratio of about 70 to 100%, more preferably about 90 to 100%, which is higher than other hydrogen storage alloys, and is stable against chemical deterioration, and is transported and supplied. In terms of workability such as storage, it is easy to handle, and it is a very excellent hydrogen storage body. However, since it has reactivity with water, there is a problem that it is slowly decomposed due to moisture or the like during long-term storage.

Therefore, the powdery cosmetic for bath of the present invention contains the above-described magnesium hydride and contains a component for moisture absorption. The component for moisture absorption may be a substance containing an action of absorbing moisture, and examples thereof include cerium oxide, sodium sulfate, magnesium sulfate, copper sulfate, calcium chloride, magnesium chloride, and oxygen. Aluminum, phosphorus pentoxide, diatomaceous earth, zeolite, and the like. Particularly suitable for cerium oxide, sodium sulfate.

For the powdery cosmetic for bath of the present invention, the average particle diameter of the magnesium hydride is preferably from 10 to 120 μm, more preferably from 20 to 80 μm. When the average particle diameter is large, the surface area is lowered, and as a result, the hydrogen generation rate tends to decrease due to the reaction with water, and the rough feeling of magnesium hydride tends to remain. When the average particle diameter is too small, the static electricity increases and the wettability decreases due to the atomization, and when it is mixed with an aqueous substance such as water, hot water or an aqueous cosmetic precursor, it may float on the surface and it is difficult to increase the amount of dissolved hydrogen. tendency. Specifically, when the magnesium hydride is added per 1 liter of water in a water bath of 40 ° C having a water depth of about 20 cm in a ratio of 2.5 mg, the amount of dissolved hydrogen after 30 minutes is 0.01 mmol/L or more (0.03 mmol/L). More preferably, the particle size is not preferred. In addition, as a measuring method for determining the average particle diameter of magnesium hydride, the method of estimating the particle diameter value by the analysis of the shape of the diffraction peak observed by the powder X-ray diffractometer is simple and suitable. The microparticulation may be carried out by a well-known method, and the apparatus, method and the like are not particularly limited. For example, a jet mill or a high-pressure gas superfine pulverizer or the like can be used. Further, as a simple method, pulverization or the like in a mortar can also be used.

The powdered cosmetic for bathing of the present invention is preferably prepared in an amount of not more than 10% by weight, more preferably not more than 7.5%, and most preferably not more than 5%. The measurement of the moisture content can be carried out, for example, in the following manner. That is, 5 g of the accurately weighed sample was placed in an evaporating dish, and dried in a forced air bath maintained at 105 ° C for 3 hours, and then measured again. The mass of the sample is calculated according to the following formula (3).

In addition, when a volatile component such as ethanol is blended in the powder cosmetic for bathing of the present invention, the amount of the volatile component is corrected based on the amount of the volatile component, and the amount of reduction due to volatilization is corrected. The value is taken as the above water content.

The powdery cosmetic for bathing of the present invention is preferably from 0.005 to 10% by weight of the above magnesium hydride, more preferably from 0.01 to 5% by weight. Further, it is preferably from 1 to 99% by weight of the above-mentioned moisture-absorbing component, more preferably from 1 to 80% by weight, particularly preferably from 10 to 60% by weight. Further, the particle size of the moisture absorbing component is preferably the same as the particle diameter of the magnesium hydride. Specifically, those having an average particle diameter of 10 to 120 μm are preferred, and those having an average particle diameter of 20 to 80 μm are more preferred.

The purpose of the powdery cosmetic for bathing of the present invention is to provide a synergistic effect of promoting blood stasis caused by hydrogen-containing water produced by using magnesium hydride, and may also be selected from the group consisting of dried tangerine peel (citrus peel), pepper, and Korean At least one powder of ginseng, ginger, angelica, and wormwood. In this case, it is preferred to use a substance having a water content of not more than 10% or a substance thus prepared, and a substance having a water content of not more than 7.5% or a substance thus prepared is preferably used, in particular, not used. More than 5% of the materials or materials thus prepared are preferred. Further, it is preferred that the powder is finely pulverized to a powder of 1000 μm or less.

In the powdery cosmetic for bath of the present invention, well-known additives or other components can be appropriately blended in addition to the above-described basic components. E.g, Alcohols such as ethanol, nonionic surfactants, polysaccharides, low molecular weight sugars, natural fats and oils, emulsifiers, perfumes, and the like.

Further, in the powdery cosmetic for bath of the present invention, in addition to the above composition, it is necessary to consider stability, and in consideration of the amount of moisture in the cosmetic, for example, it can be appropriately formulated: inorganic salts, inorganic acids, organic acids, fats and oils. , adhesives, polyols, moisturizers, plant powders and raw medicines (extracts, powders) and other ingredients.

Specifically, the cosmetic for bathing of the present invention may comprise the following ingredients:

1) Inorganic salts

Boric acid, borax, magnesium sulfate, sodium sulfide, potassium sulfide, sodium nitrate, calcium nitrate, ammonium sulfate, sodium thiosulfate, calcium hydrogen phosphate, potassium chloride, ammonium chloride, sodium phosphate, sodium dithionite, calcium thiosulfate , sulfur, urea, trisodium hydrogencarbonate and alum.

2) Inorganic acids

Heteroic acid and boric acid.

3) Organic acids

Benzoic acid, citric acid, fumaric acid, tartaric acid, malic acid, and salicylic acid.

4) Oils and fats

Olive oil, soybean oil, almond oil, castor oil, coconut oil, palm oil, sea turtle oil, oyster sauce, jojoba oil, oyster sauce, egg butter, squalane, avocado oil, lanolin, liquid paraffin, white petrolatum , DHA, EPA, etc.

5) Adhesives

Sodium carboxymethyl cellulose, methyl cellulose, sodium salt, casein, pectin, Starch, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, locust bean gum, carrageenan, agar, carbomer and glucomannan gum.

6) Polyols, humectants

Glycerin, propylene glycol, sorbitol, polyethylene glycol, 1,3-butanediol, vitamin C and its derivatives, hydrolyzed silk, collagen, chondroitin and its protein complex, glycyrrhizin and its derivatives.

7) Spices

Lavender oil, jasmine oil, rose oil, lemon oil, orange oil, peppermint oil, thyme oil, calamus oil, fennel oil, Japanese cedar oil, Japanese arhat oil, elm oil, rose oil, eucalyptus oil, camphor, peppermint Natural and synthetic flavors such as oil, spearmint oil, geraniol, orange oil, spruce, and citronellol.

8) Plant powder and crude drugs (extract, powder)

Lemon peel, seaweed, spirulina, chlorophyll, Dunaliella, eucalyptus, Japanese arborvitae, rice bran, calamus, ginger, licorice, spruce, mint, cinnamon, ebony, houttuynia, peach leaf, western chamomile, aloe vera, jasmine, Ground fruit of rose hip, lavender, guava, scutellaria, alfalfa, lychee, elderberry, tomorrow leaf, acanthopanax, burdock, licorice, safflower, geranium, ginger, pepper, etc. and its water-soluble or oil-soluble extract liquid.

Further, the powdery cosmetic for bath of the present invention may contain a bactericide, a surfactant, a vitamin, an amino acid, a pharmaceutical, a quasi drug, and a cosmetic in an appropriate amount, in addition to the above. The tar is a pigment or the like.

The powdered cosmetic for bathing of the present invention can be carried out at any concentration use. Generally, the amount of the cosmetic for bathing is generally from about 25 g to about 30 g with respect to 150 to 220 liters of hot water in the bathtub. Further, in the case where the bath cosmetics contain ore, the ore concentration in the water at the time of bathing is usually from 1 ppb to 20,000 ppm. Therefore, the powdery cosmetic for bathing of the present invention can be used in such a manner that the concentration of the composition containing ceria as a main component at the time of bathing reaches a concentration of from 1 ppb to 20,000 ppm (2% by weight). For example, the shower cosmetic of the present invention can be used by mixing 25 g of a shower cosmetic containing 250 mg of the composition in 180 L of hot water as shown in the examples.

The powdery cosmetic for bathing of the present invention is preferably provided to a user in a state of being packaged by isolating moisture with an aluminum foil package, a polyethylene package, a paper package, or a sealed inert gas. Further, it is preferably prepared by mixing with a water-containing substance such as water, hot water or a water-containing cosmetic precursor after being taken out from the package at the time of use. The aqueous cosmetic precursor in the present invention means a substance which is prepared to contain water for reaction with magnesium hydride and is combined with the powdered cosmetic for bath of the present invention to form a desired cosmetic.

As a cosmetic to which the powdery cosmetic for bath of the present invention is applied, a shower cosmetic or a body wash for body, body, foot, and arm can be exemplified. For example, as the body wash, it is preferred to use 0.5 to 125 mg of magnesium hydride with respect to 1 liter of bath water, and more preferably 2.5 to 50 mg.

[Examples]

The following examples are specifically described, but the scope of the present invention is not Limited to these examples.

<Manufacturing Example 1>

The bulk magnesium hydride (hydrogenation rate: 90 to 95%) was prepared by the method disclosed in Japanese Patent No. 4425990, and it was coarsely pulverized to about 0.1 mm by a pulverizer, and then pulverized into fine powder by a jet mill. . Analysis by a powder X-ray diffractometer revealed that the obtained magnesium hydride had a particle diameter of 60 μm.

<Test Example 1>

The change in the amount of dissolved hydrogen when the magnesium hydride obtained in Production Example 1 was used and added to hot water was measured as follows.

That is, in the sink for tropical fish (width: 60 cm × length: 30 cm × depth: 40 cm), 50 L of hot water of tap water (water depth: 20 cm) is placed, and the temperature of the water is maintained at 40 ° C by a heater to be in bath mode. . 0.125 g of the above magnesium hydride was added thereto, and the mixture was stirred back and forth twice with a 50 cm long plastic ruler. Then, the water was allowed to stand without flowing, and the dissolved hydrogen concentration after 0, 15, 30, 60, 120, and 180 minutes from the start of the magnesium hydride was measured. At the time of measurement, a micro-sensor Multi-Meter (H2 sensor) (manufactured by UNISENSE Co., Ltd.) was used, and the electrode was always inserted into hot water in a water tank, and the measured value per hour was observed. It should be noted that the indoor air heater is not used for special ventilation, but the temperature and humidity are managed by the installed air conditioner. A total of 8 trials were performed on different dates and times.

Table 1 shows the results of a total of 8 tests.

As a result, the amount of dissolved hydrogen increased from 0.0 to 15 mmol/L on average from 0 to 15 minutes after the introduction of magnesium hydride, and then the amount of dissolved hydrogen gradually increased with time.

<Example 1> (Bathing agent)

The bathing agent was prepared using the magnesium hydride obtained in Production Example 1 and the formulation of Table 2 was carried out, and the aluminum foil was packaged in a usual manner.

Take 25 grams of the body wash from the aluminum foil package and put it into 200L of hot water. As a result, the touch on the skin is good when it is bathed, and it is not irritating. After bathing, it gives the skin a luster and moist feeling (moisturizing). Very good skin effect. In addition, the heat preservation effect (temperature feeling) is also very good.

<Test Example 2>

The powdered cosmetic for bath was prepared using the magnesium hydride obtained in Production Example 1 and the formulation of the above paragraph 3, and the aluminum foil was packaged in a conventional manner.

The obtained powdery cosmetic for bathing was subjected to a storage stability test. Specifically, whether the air expandability in the aluminum foil package after storage for 4 days at 60 ° C is good, whether the powder fluidity is good after storage at 40 ° C for 6 months, and whether the powder has agglomeration after storage at 40 ° C for 6 months, ◎: Very good, ○: good, △: slightly worse, ×: 4 levels of difference were evaluated.

The results are shown in the lower part of Table 3, in Example 2 in which 98% by weight of sodium sulfate was formulated, and Examples 3 to 6 in which 50% by weight of sodium sulfate was formulated, all evaluation results were excellent in storage stability. . Further, compared with Comparative Example 1 in which 98% by mass of sodium hydrogencarbonate was blended, the sodium hydrogencarbonate was used. The storage stability of Example 7 in which 50% by mass was substituted with 50% by weight of sodium sulfate was better. Further, in Comparative Example 2 in which sodium carbonate was blended in an amount of 98% by mass, the storage stability of Example 8 in which 50% by mass of sodium carbonate was replaced with 50% by weight of sodium sulfate was better. Further, in Comparative Example 3 in which calcium carbonate was blended in an amount of 98% by mass, the storage stability of Example 9 in which 50% by mass of the calcium carbonate was replaced with 50% by weight of sodium sulfate was better. Further, in Comparative Example 4 in which trisodium hydrogencarbonate was blended in an amount of 98% by mass, the storage stability of Example 10 in which 50% by mass of trisodium hydrogencarbonate was replaced with 50% by weight of sodium sulfate was further improved.

Therefore, it is understood that the storage stability of the powdered cosmetic for bath containing magnesium hydride can be improved by using sodium sulfate.

<Test Example 3>

The powdered cosmetic for bath was prepared using the magnesium hydride obtained in Production Example 1 and the above-mentioned formulation of Table 4, and was packaged in an aluminum foil in a conventional manner.

The moisture of the obtained powdered cosmetic for bathing according to a conventional method The amount (decrease after drying) was measured. Specifically, after drying in a blower type thermostatic bath at 105 ° C for 3 hours, it was calculated according to the following formula (3).

Further, the same storage stability test as in Test Example 2 described above was carried out. Specifically, whether the air expandability in the aluminum foil package after storage at 60 ° C for 4 days is good, and whether the fluidity of the powder after storage at 40 ° C for 6 months is good, ◎: very good, ○: good, Δ: Slightly worse, ×: 4 levels of difference are evaluated.

As a result, as shown in the lower part of Table 4, the water content in Example 11 was 3.5%, and the storage stability was very good. Further, in the case of the formulation of Example 11, the storage stability of Example 12 in which the moisture content was 10% was also good. On the other hand, in Comparative Examples 5 and 6 which were close to the formulations of Examples 11 and 12 but having a moisture content of 11.2%, it was found that the air in the aluminum foil package was swollen and the fluidity of the powder was also deteriorated. On the other hand, in Examples 13 to 16 according to other blending methods, the moisture content was adjusted to about 2.8 to 4.8%, and the storage stability was very good or good.

Therefore, it is understood that the storage stability of the powdered cosmetic for bath containing magnesium hydride can be improved by preparing the water content to a predetermined value or less.

Claims (6)

A powdered cosmetic for bathing comprising magnesium hydride having an average particle diameter of 10 to 120 μm and selected from the group consisting of ceria, sodium sulfate, magnesium sulfate, copper sulfate, calcium chloride, magnesium chloride, and aluminum oxide. One or more of the components of the group formed by phosphorus pentoxide, diatomaceous earth and zeolite are prepared to have a moisture content of not more than 10%. The powdery cosmetic for bath according to the first aspect of the invention, further comprising a powder of at least one inorganic salt selected from the group consisting of sodium chloride, potassium chloride and alum. The cosmetic powder for bath according to claim 1 or 2, further comprising at least one carbonic acid selected from the group consisting of sodium hydrogencarbonate, sodium carbonate and sodium sesquicarbonate Salt powder. The powdery cosmetic for bathing according to the first or second aspect of the invention, which further comprises a group selected from the group consisting of tangerine peel (citrus skin), pepper, Korean ginseng, ginger, angelica and wormwood. At least one of the powders. The powdered cosmetic for bath according to claim 1 or 2, which contains 0.005 to 5% by weight of anthracene selected from the group consisting of anhydrous citric acid, aluminum silicate, aluminum oxide, potassium oxide, sodium oxide, magnesium oxide, At least one powder of the group consisting of ferric oxide, calcium oxide, and a rock composition containing the components. The cosmetic powder for bath according to the first or second aspect of the invention, which contains 1 to 99% by weight of the moisture-absorbing component.