JP5212654B2 - Steam generator - Google Patents

Description

  The present invention relates to a water vapor generator that continuously supplies cosmetic ingredients or pharmaceutical ingredients together with hot water vapor to the skin and mucous membranes so that they can be efficiently transdermally absorbed.

  Conventionally, steam facial instruments, steamed towels, etc. have been used to supply moderately heated water vapor to the skin, thereby promoting blood circulation of the skin and maintaining or improving the skin in a preferred moisturizing state. .

  However, steam facial instruments and steam towels are not always available at any place. Moreover, it is difficult to use the steam facial device for any part of the body other than the face. Furthermore, the steam towel has a problem that the maintenance time for supplying sufficient steam is short.

  On the other hand, the present inventors, in WO99 / 51174, contain metal powder, salts and water as a water vapor generator that easily generates water vapor, and release water vapor along with the oxidation reaction of the metal powder. A water vapor generating body in which a water vapor generating composition is put in a bag made of a moisture permeable sheet is disclosed. Furthermore, when a cosmetic layer or a drug layer is provided on the surface of the water vapor generator so that the cosmetic component or drug component is released together with the water vapor, the moisture supplied to the skin by sweating when the skin is simply heated. Rather than the moisture supplied from the water vapor generating part, the skin is quickly and sufficiently moistened, and the moistened state by the water is maintained for a long time. It has been disclosed that the penetration of water is promoted and the effect of using these is enhanced.

  However, if a cosmetic layer or a drug layer is provided on the surface of the water vapor generator, the cosmetic or drug is consumed in a short time, so even if the release of water vapor from the water vapor generator continues for a long time, The supply of the drug component does not last for a long time. Further, in some cases, the cosmetic component and the drug component have a high concentration on the skin surface, and there is a risk of causing skin damage.

  Therefore, the present invention improves the safety in applying cosmetics and drugs to the skin and mucous membranes using water vapor released from the water vapor generator, and the cosmetic ingredients and drug components are continuously applied to the skin and mucous membranes. It aims to be supplied to.

  When the present inventors use a water vapor generating composition that contains metal powder, salts and water as a water vapor generating source and releases water vapor along with the oxidation reaction of the metal powder, Dispersing cosmetic ingredients or pharmaceutical ingredients gradually releases the cosmetic ingredients and pharmaceutical ingredients as the water vapor is released from the water vapor generating composition, so the cosmetic ingredients and pharmaceutical ingredients are necessary on the skin and mucous membranes. The present inventors have found that it is possible to prevent the concentration from becoming higher and to continuously supply cosmetic ingredients and pharmaceutical ingredients to the skin and mucous membranes, thereby completing the present invention.

  That is, the present invention is a water vapor generating body comprising a metal powder, a salt and water, and having a water vapor generating composition that releases water vapor upon oxidation of the metal powder, and the cosmetic ingredient or drug in the water vapor generating composition A water vapor generator in which components are dispersed is provided.

  According to the present invention, a cosmetic ingredient and a drug ingredient can be gradually and continuously applied to the skin or mucous membrane together with hot water vapor.

It is the top view (same figure (a)) and sectional drawing (same figure (b)) of the water vapor generation body of an Example. It is the top view (same figure (a)) and sectional drawing (same figure (b)) of the water vapor generation body of an Example.

  Hereinafter, the present invention will be described in detail.

  The water vapor generating body of the present invention comprises a water vapor generating composition comprising a metal powder, a salt and water as a water vapor generating source and releasing water vapor upon oxidation of the metal powder, and a cosmetic ingredient in the water vapor composition Or, as the drug component is dispersed and the water vapor is released from the water vapor generating composition, the cosmetic component and the drug component dispersed in the water vapor generating composition are gradually released and supplied to the skin and mucous membrane together with the water vapor. It is what I did.

  Here, the water vapor includes both water vaporized into a gas and water condensed into fine water droplets.

  In the present invention, the application of the water vapor generator to the skin or mucous membrane means that the water vapor generator is directly applied to the application site of the skin or mucous membrane so that the water vapor is supplied to the application site. Alternatively, it means that water vapor is indirectly supplied to the application site by suction or the like.

  The water vapor generating composition contains metal powder (iron, aluminum, zinc, copper, etc.), salts (sodium chloride, potassium chloride, calcium chloride, magnesium chloride, etc.) and water. Use one that releases This water vapor generating composition includes a water retention agent (vermiculite, calcium silicate, silica gel, silica-based porous material, alumina, pulp, wood powder, water-absorbing polymer, etc.) and a reaction accelerator (activated carbon, carbon if necessary). Various components such as black and graphite can be contained.

  In this oxidation reaction, for example, when iron powder is used as metal powder,

のように、鉄粉が発熱反応をおこし、系内の水が水蒸気として放出される。

As described above, the iron powder causes an exothermic reaction, and water in the system is released as water vapor.

  Such an exothermic reaction of the metal powder is used in a heating element generally called a chemical warmer. However, since a conventional chemical warmer is basically configured as a heating tool, it has an appropriate air permeability, and care is taken so that water necessary for the reaction does not escape from the heating element. For this reason, the bag that accommodates the heating element of the chemical warmer has air permeability, but is not actively composed of a moisture permeable material. On the other hand, in the present invention, since the water vapor generating composition is actively used as a water vapor generating source, the surface to be applied to the skin or mucous membrane is composed of a moisture permeable sheet as will be described later. This is very different from the method of using the same composition.

  There are no particular restrictions on the types of cosmetics and drugs, but those in which the cosmetic ingredients and drug ingredients are gradually and continuously released by heating or by the supply of water vapor are preferred. Specific examples include Angelica seed oil, peppermint oil, ylang ylang oil, coriander oil, sandalwood oil, eucalyptus oil, cedarwood oil, jasmine oil, ginger oil, tea tree oil, pine oil, nutmeg oil, patchouli oil, bergamot oil, Essential oils such as vetiver oil, palmarosa oil, marjoram oil, turpentine oil, rosewood oil, rosemary oil, lavender oil, cedar embryo oil; camphor, geraniol, menthol, citral, citronellol, cineol, α-cedrene, cedrol, terpineol, Terpinene, nerol, nerolidol, patchouli alcohol, pinene, phenylethyl alcohol, vetiverol, benzyl acetate, benzyl alcohol, borneol, linalyl acetate, linalool, limonene, Fragrance components such as Nokithiol; plant extracts such as aloe extract, seaweed extract, chamomile extract, assembly extract, toki extract, maronier extract, melissa extract, chamamelis extract, eucalyptus extract, rosemary extract, thistle extract; decamethyltetrasiloxane, Silicones such as decamethylcyclopentasiloxane, octamethyltrisiloxane and octamethylcyclotetrasiloxane, polyols such as propylene glycol, ethylene glycol and diethylene glycol alkyl ether; blood circulation promoting components such as tocopherol nicotinate, tocopherol acetate and nicotinamide Whitening ingredients such as L-ascorbic acid, arbutin, kojic acid, placenta extract, chamomile extract, tea extract, cuckoo extract, licorice extract; Sebum secretion inhibitor components such as tradiol, zinc sulfocolate, zinc oxide, royal jelly, 10-hydroxyundecanoic acid, 12-hydroxystearic acid; natural moisturizing components (NMT), moisturizing components such as SA amino acids, pyrrolidone carboxylic acids; Lipid components such as ceramides, phospholipids and higher fatty acids; anti-inflammatory agents such as indomethacin and methyl salicylate; peeling agents composed of proteases such as papain; and hair removal agents such as calcium thioglycolate.

  Examples of the method for dispersing the cosmetic component or the drug component in the water vapor generating composition include, for example, dissolving the cosmetic component or the drug component in water when the cosmetic component or the drug component is water-soluble, and dispersing it in water when the water-insoluble composition is insoluble. Added to the steam generating composition. In the latter case, it is preferable to use a dispersant such as a nonionic surfactant because it facilitates dispersion in water.

In the present invention, from the viewpoint of the effect of supplying water vapor to the skin and mucous membrane, the amount of water vapor released from the application surface of the water vapor generator to the skin or mucous membrane is 0.01 mg / cm ² · min or more, particularly 0.5 mg. / Cm ² · min or more is preferable. The amount of water vapor released was taken out from the outside air blocking container under a room temperature environment (20 ° C., 65% RH), immediately placed on a pan balance capable of measuring 1 mg, and then weighed for 15 minutes. In this case, the weight at the start of measurement is Wt ₀ (g), the weight after 15 minutes is Wt ₁₅ (g), and the surface area of the portion applied to the skin or mucous membrane on the surface of the water vapor generator is S (cm ² ) Is calculated by the following equation (1).

The water vapor generating composition is used while being accommodated in a bag or the like having an arbitrary shape, and the amount of water vapor released from the application surface of the water vapor generating body to the skin or mucous membrane is 0.01 mg / cm ² · min or more, particularly 0 In order to set it to 5 mg / cm ² · min or more, a constituent material such as a bag body containing the water vapor generating composition is used as a moisture permeable sheet. As the moisture permeable sheet, the amount of moisture permeation is preferably not less than 4000g / m ² · 24h according to ASTM method, and more preferably not less than 8000g / m ² · 24h. Specific examples of the moisture permeable sheet include woven fabrics, nonwoven fabrics, papers, synthetic papers and the like made of various artificial fibers or natural fibers. Moreover, what provided many micropores in the air-impermeable film or sheet | seat can also be used.

  In the water vapor generator of the present invention, it is preferable to control the temperature of water vapor released from the surface of the water vapor generator to 50 ° C. or lower in order to prevent skin and mucous membrane damage due to continuous supply of hot water vapor. As a method for this, for example, a temperature adjusting material made of a woven fabric, a nonwoven fabric, paper, a porous film, a perforated foamed plastic, or the like is provided between the housing portion of the steam generating composition and the surface of the steam generating body, A method for lowering the temperature by allowing water vapor released from the water vapor generating composition to permeate the temperature adjusting material, a method for providing a gap between the surface of the water vapor generating body and the skin or mucous membrane application site, and the water vapor generating composition The reaction rate can be adjusted by appropriately changing the amount and particle size of the metal powder or salt used in the method, thereby controlling the water vapor temperature released from the surface of the water vapor generator.

  In the present invention, when the temperature of water vapor released from the water vapor generator is controlled to 50 ° C. or lower, the temperature measurement conforms to the temperature measurement method of JIS S4100 disposable body warmers.

  The steam generator of the present invention can take various forms as long as the cosmetic component or the drug component is dispersed and contained in the steam generating composition. For example, the bag body containing the water vapor generating composition may be entirely composed of a moisture permeable sheet, but the side surface to be applied to the skin or mucous membrane is composed of a moisture permeable sheet and the other surface is impermeable to moisture or low. You may comprise from a moisture-permeable sheet. Thereby, the water vapor | steam discharge | released from a water vapor generation composition can be efficiently directed to the direction of skin or mucous membrane.

  Moreover, what is necessary is just to seal in the arbitrary containers and bags which can interrupt | block outside air at the time of storage of the water vapor generating body of this invention.

  Hereinafter, based on an Example, this invention is demonstrated concretely.

Example 1
Using the ingredients shown in Table 1, a steam generating composition containing lavender oil was prepared as follows. First, a mixed powder of a water-absorbing polymer, activated carbon and vermiculite is obtained, while lavender oil is dispersed with a nonionic surfactant and mixed with 15% saline, which is mixed with the previous mixed powder, followed by iron. Mixed with flour.

As shown in FIG. 1, 20 g of the obtained water vapor generating composition 1a is accommodated in an inner bag 2 made of a moisture-permeable nonwoven fabric (Mitsui Chemicals, trade name: Syntex MB, basis weight 15 g / m ² ). This is applied to the pocket part 3 of the gauze mask 4 having the pocket part 3 as a temperature control material 5 with two layers of non-woven fabric (manufactured by Honshu Kinocross Co., Ltd., trade name: Kinocross KS-40, manufactured by Japan Vilene Co., Ltd., trade name) : Laminated with bi-form air bag KNP-350) to form a mask-type water vapor generator 10A.

  When this mask-type water vapor generator 10A was applied, the scent of lavender oil with a calming effect could be inhaled for 15 minutes together with warm water vapor at 38 to 45 ° C.

Example 2
Using the components shown in Table 2, a water vapor generating composition containing eucalyptus extract was prepared as follows. First, a mixed powder of a water-absorbing polymer, activated carbon and vermiculite was obtained, while eucalyptus extract was mixed with 15% saline, mixed with the previous mixed powder, and then mixed with iron powder.

As shown in FIG. 2, 10 g of the obtained water vapor generating composition 1b is made of a sheet (breathlon manufactured by Nitto Denko Co., Ltd.) whose back surface 2b has air permeability, and the surface 2a is a moisture-permeable nonwoven fabric (Mitsui Chemicals). Product name: Syntex MB, contained in an inner bag 2 composed of a basis weight of 15 g / m ² ), and a two-layer nonwoven fabric (manufactured by Honshu Kinocross Co., Ltd., trade name: Kinocross KS-40, Japan) The outer bag made of Vileen Co., Ltd., product name: layered with Bifoam Airbag KNP-350) and made entirely of moisture permeable nonwoven fabric (Mitsui Chemicals product name: Syntex MB, basis weight 15 g / m ² ) 6 was prepared, and a paste-type water vapor generator 10B provided with an adhesive layer 7 on the peripheral edge of the surface was prepared.

  When this sticking type water vapor generator 10B is stuck on the skin of the forearm, the eucalyptus extract that suppresses skin hypersensitivity penetrates into the skin by the action of water vapor at 38 to 45 ° C. for a high skin care. The effect was obtained.

DESCRIPTION OF SYMBOLS 1a, 1b Water vapor generating composition 2 Inner bag 3 Pocket part 4 Mask 5 Temperature control material 6 Outer bag 7 Adhesive layer 10A, 10B Water vapor generator

Claims (4)

Metal powder consists salts and water, a steam generator having a steam-generating composition water in the system is Ru is released as water vapor with the oxidation of the metal powder, essential oil in a water vapor generating composition, the fragrance component or The plant extract is dispersed, the surface to be applied to the skin or mucous membrane is composed of at least a moisture-permeable sheet, and the amount of water vapor released from the surface to which the water vapor generator is applied to the skin or mucous membrane is 0.01 mg / cm ^2. A water vapor generator that is at least min.   The water vapor generator according to claim 1, wherein the temperature of the water vapor released from the surface of the water vapor generator is controlled to 50 ° C or lower.   The water vapor generator according to claim 1 or 2, wherein a temperature adjusting material is provided between the housing portion of the water vapor generating composition and the surface of the water vapor generator.   The steam generator according to any one of claims 1 to 3, wherein the essential oil, scent component or plant extract is indirectly supplied to the application site together with steam.

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