WO2016136703A1 - 2液混合型エアゾール製品 - Google Patents
2液混合型エアゾール製品 Download PDFInfo
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- WO2016136703A1 WO2016136703A1 PCT/JP2016/055160 JP2016055160W WO2016136703A1 WO 2016136703 A1 WO2016136703 A1 WO 2016136703A1 JP 2016055160 W JP2016055160 W JP 2016055160W WO 2016136703 A1 WO2016136703 A1 WO 2016136703A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
- B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
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- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
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- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
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Definitions
- the present invention relates to a two-component mixed aerosol product, and more particularly to a two-component mixed aerosol product from which a mist-like discharge is obtained.
- liquid compositions used as human products such as cosmetics, daily necessities, and foods are not miscible with each other, such as water and liquid oil, ethanol and liquid paraffin, or liquid paraffin and certain ester compounds.
- Some types use liquids as active ingredient media.
- some liquid cosmetics include an aqueous liquid composition containing a water-soluble component as an active ingredient in a medium composed of water, and a medium composed of a liquid oil immiscible with water.
- an oily liquid composition containing an oil-soluble component as an active ingredient, and an emulsion composition by the action of a surfactant.
- liquid cosmetics for sunscreens for example, a large amount of an oily medium for dissolving the ultraviolet ray absorbing component is required in order to mix the ultraviolet ray absorbing component which is an active ingredient. Therefore, when water is blended, a large amount of surfactant needs to be blended. Therefore, due to the fact that a large amount of surfactant is contained, there is a problem that skin irritation tends to occur at the application site, and a sticky feeling or the like occurs, and a good feeling of use cannot be obtained.
- cosmetics made of liquid cosmetics there are those in which an aqueous liquid composition and an oily liquid composition are filled in a container in a state where they are separated from each other.
- the aqueous liquid composition and the oily liquid composition are taken out from the container onto the palm and mixed thoroughly, and then applied to the application site without performing a complicated operation.
- the aqueous liquid composition and the oily liquid composition are taken out from the container onto the palm and mixed thoroughly, and then applied to the application site without performing a complicated operation.
- a sticky feeling is generated and a good feeling of use cannot be obtained.
- the present invention has been made based on the circumstances as described above, and its purpose is to have excellent formulation stability, to easily form a discharge having an intended composition, and to the human body. It is an object of the present invention to provide a two-component mixed aerosol product that provides a good feeling when used.
- the two-component mixed aerosol product of the present invention has a propellant filling space and two independent stock solution filling spaces for simultaneously discharging the contents filled in the two stock solution filling spaces.
- a double-structured container provided with a discharge mechanism of The propellant filling space in the double structure container is filled with a propellant made of compressed gas,
- the first stock solution composition is filled in the first stock solution filling space in the double structure container, and the second stock solution composition is filled in the second stock solution filling space in the double structure container.
- the first stock solution composition is a liquid in which a first component that is dissolved in the first medium is contained in the first medium
- the second stock solution composition is a liquid that is immiscible with the first stock solution composition, wherein the second medium contains a second component that dissolves in the second medium
- Both the first stock solution composition and the second stock solution composition have a viscosity of 1 to 1000 mPa ⁇ s at a temperature of 20 ° C.
- the discharge mechanism has a function of dividing the first undiluted solution composition and the second undiluted solution composition into fine droplets and ejecting them in a mist form.
- the first stock solution composition has a first component comprising an oil-soluble component or a non-oil-soluble component in a first medium comprising an oil-based medium or a non-oil-based medium.
- the second stock solution composition is preferably an oil-based one in which a second component composed of an oil-soluble component is contained in a second medium composed of an oil-based medium.
- the mixing ratio of the first stock solution composition and the second stock solution composition discharged from the discharge mechanism (the mass of the first stock solution composition: the second stock solution composition)
- the mass of the product is preferably 0.8: 1.2 to 1.2: 0.8.
- the oily medium is preferably at least one selected from the group consisting of hydrocarbon compounds, ester compounds, silicone compounds, fats and oils, and higher alcohols.
- the non-oil-soluble component is a whitening component, an antioxidant component, an anti-wrinkle component, a film-forming component, a moisturizing component, a bactericidal component, an ultraviolet absorbing component, a cooling component, or an astringent component. It is preferably at least one selected from the group consisting of a warming component, an anti-inflammatory component, a stratum corneum peeling component, an antipruritic component, a hair growth component and a deodorizing component.
- the oil-soluble component is a whitening component, an antioxidant component, an anti-wrinkle component, a film-forming component, a moisturizing component, a bactericidal component, an ultraviolet absorbing component, a cooling component, an astringent component, It is preferably at least one selected from the group consisting of a warm sensation component, an anti-inflammatory component, a stratum corneum peeling component, an antipruritic component, a hair growth component and a deodorant component.
- the discharge mechanism has a swirl passage that divides into fine droplets while allowing the first and second undiluted liquid compositions to pass through. .
- the two-component mixed aerosol product of the present invention is preferably for the human body.
- the two-component mixed aerosol product of the present invention includes a dual structure container provided with a discharge mechanism for simultaneously discharging the contents filled in the two stock solution filling spaces in a mist form. Also, one of the two stock solution filling spaces is filled with the first stock solution composition having a specific viscosity, and the other is filled with the second stock solution having a specific viscosity that is not miscible with the first stock solution composition. The composition is filled. Therefore, a surfactant for emulsifying the first stock solution composition and the second stock solution composition is not required, and each of the first stock solution composition and the second stock solution composition is formulated. A great degree of freedom in design is obtained, and excellent formulation stability is obtained.
- the first stock solution composition and the second stock solution composition can always be mixed at a constant quantity ratio, and the discharged product can be applied thinly and uniformly to the application location. Therefore, according to the two-component mixed aerosol product of the present invention, excellent prescription stability is obtained, and moreover than the mixture in which the first stock solution composition and the second stock solution composition are mixed in the desired ratio. Thus, it is possible to easily apply the discharged material uniformly with the desired application amount to the application location. In addition, when applied to the human body, it is possible to prevent or suppress the occurrence of a sticky feeling due to the blending of the surfactant, so that a good feeling of use can be obtained.
- the two-component mixed aerosol product of the present invention has a propellant filling space and two independent stock solution filling spaces, and the contents filled in the two stock solution filling spaces are simultaneously atomized.
- a double structure container provided with a discharge mechanism for discharging is provided.
- the propellant filling space is filled in the propellant filling space
- the first stock solution filling space is filled with the first stock solution composition
- the second stock solution is filled.
- the stock solution filling space is filled with the second stock solution composition.
- the first undiluted solution composition and the second undiluted solution composition discharged simultaneously from each of the first undiluted solution filling space and the second undiluted solution filling space, It is divided into fine droplets by the discharge mechanism to form a mist. That is, in the two-component mixed aerosol product of the present invention, a mixture of the first undiluted solution composition and the second undiluted solution composition is obtained as an atomized discharge.
- the first stock solution composition is a liquid product in which the first component dissolved in the first medium is contained in the first medium
- the second stock solution composition is a liquid that is immiscible with the first stock solution composition, in which the second component contains a second component that dissolves in the second medium. That is, the first stock solution composition and the second stock solution composition are immiscible with each other, and two kinds of liquids (specifically, the first medium and the second medium) are added to each liquid. Used as a medium for the active ingredient to be dissolved.
- the 1st medium and 1st component which comprise a 1st stock solution composition, and the 2nd medium and 2nd component which comprise a 2nd stock solution composition are the 2 liquid mixture type aerosols of this invention It is appropriately selected according to the intended use of the product.
- the two-component mixed aerosol product of the present invention include the following examples (1) to (3).
- the first undiluted solution composition includes the first component composed of a water-soluble component in the first medium mainly composed of water.
- the stock solution composition is a composition in which a second component composed of an oil-soluble component is contained in a second medium composed of an oil-based medium that is immiscible with water.
- the first undiluted solution composition contains the first component composed of the alcohol-soluble component in the first medium mainly composed of alcohol.
- a second component composed of an oil-soluble component is contained in a second medium composed of an oil-based medium that is immiscible with the alcohol constituting the first medium.
- the first stock solution composition is a composition in which the first component composed of an oil-soluble component is contained in the first medium composed of an oil-based medium, and the second stock solution composition
- the second component composed of the oil-soluble component is contained in the second medium composed of the oil-based medium that is immiscible with the oil-based medium constituting the first medium.
- the oil-soluble component constituting the first component is dissolved in the oil-based medium constituting the first medium, but not dissolved in the oil-based medium constituting the second medium.
- the oil-soluble component constituting the second component is dissolved in the oil-based medium constituting the second medium but not dissolved in the oil-based medium constituting the first medium.
- the two-component mixed aerosol product of the present invention is not limited to the above examples (1) to (3), and may be other products.
- the first stock solution composition and the second stock solution composition are not miscible with the two-component mixed aerosol product of the present invention, the first medium constituting the first stock solution composition and The second medium constituting the second stock solution composition may be miscible.
- the first stock solution composition contains a non-oil-soluble component (specifically, a non-oil-soluble component (specifically, water and alcohol) in a first medium consisting of a non-oil-based medium (specifically water and alcohol)). It is a liquid containing a first component comprising a water-soluble component and an alcohol-soluble component.
- the second stock solution composition is a liquid in which a second component composed of an oil-soluble component is contained in a second medium composed of an oil-based medium (specifically, liquid oil) that is not miscible with water or alcohol. Is.
- the first undiluted solution composition is a liquid in which a first component composed of a water-soluble component is contained in a first medium containing water as a main component and, if necessary, an alcohol or the like, or an alcohol. It is a liquid in which a first component composed of an alcohol-soluble component is contained in a first medium containing water as necessary as a main component.
- water constituting the first medium in the first stock solution composition As water constituting the first medium in the first stock solution composition, purified water, ion-exchanged water or the like is used. Moreover, ethanol etc. are used as alcohol which comprises a 1st medium.
- the content ratio of the first medium is preferably 80.0 to 99.9% by mass in 100% by mass of the first stock solution composition.
- the content ratio of the first medium is excessive, the first component may not be contained in a sufficient ratio.
- the content ratio of the first medium is excessively small, the discharged material is less likely to become a mist. In particular, when applied to the human body, there is a possibility that a good feeling of use cannot be obtained.
- the first component which is an essential component of the first stock solution composition, constitutes an active ingredient and is intended for application.
- the first component does not necessarily have to be an effective component in relation to the use of the two-component mixed aerosol product, and may be, for example, an auxiliary agent or a secondary active component for the main active component.
- the first component composed of the non-oil-soluble component is a whitening component, an antioxidant component, an anti-wrinkle component, a film-forming component, a moisturizing component, a bactericidal component, an ultraviolet absorbing component, a cooling component, and an astringent It is preferably at least one selected from the group consisting of a component, a warming component, an anti-inflammatory component, a stratum corneum peeling component, an antipruritic component, a hair growth component and a deodorant component.
- Examples of the whitening component include arbutin, tranexamic acid, kojic acid, hydroquinone, vitamin C and vitamin C derivatives.
- Examples of the antioxidant component include polyphenols.
- Examples of the anti-wrinkle component include glycerin and hyaluronic acid.
- Examples of film formation include polyvinyl alcohol, polyvinyl pyrrolidone, and cationized cellulose.
- Examples of the moisturizing component include amino acids, urea, sodium pyrrolidonecarboxylate, hyaluronic acid, glycerin and polyethylene glycol.
- Examples of the bactericidal component include benzalkonium chloride, benzethonium chloride, chlorhexidine hydrochloride and hinokitiol.
- Examples of the ultraviolet absorbing component include phenylbenzimidazole sulfonic acid.
- Examples of the astringent component include citric acid, succinic acid, tannic acid, hamelis water, aloe, zinc sulfocolate, and the like.
- Examples of the anti-inflammatory component include dipotassium glycyrrhizinate, aloe extract (aloe extract), perilla extract and the like.
- Examples of the stratum corneum peeling component include salicylic acid, lactic acid, sulfur and resorcin.
- Examples of the antipruritic component include diphenhydramine hydrochloride and chlorpheniramine maleate.
- Examples of the hair-growth component include assembly extract, adenosine, calcium pantothenate, and acetyl pantothenyl ethyl ether.
- Examples of the deodorant component include green tea extract and alum.
- the content ratio of the first component is preferably 0.1 to 20% by mass in 100% by mass of the first stock solution composition.
- the content ratio of the first component is excessive, the first component may not be sufficiently dissolved in the first stock solution composition.
- the content ratio of the first component is too small, the effect relating to the first component may not be sufficiently obtained.
- the first stock solution composition may contain optional components as necessary.
- optional components include preservatives, pigments, and fragrances.
- a surfactant can also be used as an optional component.
- the first stock solution composition composed of the above essential components and optional components has a viscosity at a temperature of 20 ° C. of 1 to 1000 mPa ⁇ s, preferably 1 to 500 mPa ⁇ s.
- the second stock solution composition contains a second component consisting of an oil-soluble component in a second medium composed of an oil-based medium that is immiscible with the non-oil-based medium constituting the first medium in the first stock solution composition. Liquid.
- liquid oil that is liquid at room temperature is used as the oily medium constituting the second medium.
- the liquid oil constituting the second medium is preferably at least one selected from the group consisting of hydrocarbon compounds, ester compounds, silicone compounds, fats and oils, and higher alcohols.
- hydrocarbon compound examples include kerosene, light oil, mineral oil, squalane, liquid paraffin, and light isoparaffin.
- ester compounds include isopropyl myristate, butyl myristate, isocetyl myristate, octyldodecyl myristate, butyl stearate, ethyl hexyl stearate, isopropyl isostearate, isopropyl palmitate, ethyl hexyl palmitate, ethyl linoleate, butyl octyl salicylate , Cetyl ethylhexanoate, fatty acid ester such as ethyl olive fatty acid (ethyl oleate); triethylhexanoin, propylene glycol monocaprylate, propylene glycol dicaprylate, triethylhexanoate trimethylolpropane,
- oils and oils include white birch oil, rosehip oil, jojoba oil, large fusuko oil, sunflower oil, grape seed oil, avocado oil, hazelnut oil, mountain tea flower oil, broccoli seed oil, babas oil, baobab oil, coconut oil, olive oil, coffee Bean oil, castor oil, camellia oil, palm oil, palm kernel oil, tung oil, peach kernel oil, cherry oil, granberry seed oil, oilseed rape oil, shortening, salad oil, white squeezed oil, purple soy oil, pecan nut oil, pistachio oil, camellia oil , Coconut oil, apricot oil, akebi oil, corn oil, mortar oil, macadamia nut oil, linseed oil, coconut oil, seabaxon, cottonseed oil, hemp seed oil
- the content ratio of the second medium is preferably 40.0 to 99.9% by mass in 100% by mass of the second stock solution composition. If the content ratio of the second medium is excessive, the second component may not be contained in a sufficient ratio. In particular, when applied to the human body, there is a possibility that the discharged material has a sticky feeling and a good feeling of use cannot be obtained. On the other hand, when the content ratio of the second medium is too small, the second component may not be sufficiently dissolved in the second stock solution composition.
- the second component which is an essential component of the second stock solution composition, is a substance that is insoluble in the non-oil medium, constitutes an active ingredient, and is intended for application.
- the second component does not necessarily have to be an effective component in relation to the use of the two-component mixed aerosol product, and may be, for example, an auxiliary agent or a secondary active component for the main active component.
- the second component comprising the oil-soluble component is a whitening component, an antioxidant component, an anti-wrinkle component, a film forming component, a moisturizing component, a bactericidal component, an ultraviolet absorbing component, a cooling component, and an astringent component. It is preferably at least one selected from the group consisting of a warming component, an anti-inflammatory component, a stratum corneum peeling component, an antipruritic component, a hair-restoring component and a deodorizing component.
- antioxidant component examples include astaxanthin and vitamin E.
- anti-wrinkle component examples include retinol and retinoic acid.
- film forming component examples include nitrocellulose, polymer silicone, and silicone resin.
- moisturizing component examples include petrolatum.
- sterilizing component examples include piroctone olamine and isopropylmethylphenol.
- Examples of the ultraviolet absorbing component include ethylhexyl methoxycinnamate, 2-ethylhexyl paradimethylaminobenzoate, octocrylene, ethylhexyltriazone, oxybenzone, t-butylmethoxydibenzoylmethane, hexyl diethylaminohydroxydibenzoylbenzoate, bisethylhexyloxyphenolmethoxy
- Examples include phenyltriazine and methylenebisbenzotriazolyltetramethylbutylphenol.
- Examples of the refreshing component include menthol, menthyl lactate, mint oil, peppermint oil, camphor, thymol, and methyl salicylate.
- Examples of the warm sensation component include capsaicin.
- Examples of the anti-inflammatory component include glycyrrhetinic acid and azulene.
- Examples of the antipruritic component include camphor and menthol.
- the content ratio of the second component is preferably 0.1 to 60% by mass in 100% by mass of the second stock solution composition.
- the second component When the content ratio of the second component is excessive, the second component may not be sufficiently dissolved in the second stock solution composition. On the other hand, when the content ratio of the second component is too small, the effect relating to the second component may not be sufficiently obtained.
- the second stock solution composition may contain optional components as necessary.
- optional component include alcohol such as ethanol.
- surfactant can also be used as an arbitrary component.
- the second stock composition composed of the above essential components and optional components has a viscosity at a temperature of 20 ° C. of 1 to 1000 mPa ⁇ s, preferably 1 to 500 mPa ⁇ s.
- a compressed gas is used as the propellant.
- the compressed gas include nitrous oxide gas, nitrogen gas, carbon dioxide gas, or a mixed gas thereof. This propellant is not discharged from the propellant filling space to the outside of the dual structure container as the first stock solution composition and the second stock solution composition are simultaneously ejected.
- the propellant is preferably sealed so that the pressure when filled in the double-structure container is 0.3 to 1.2 MPa at 25 ° C.
- the filling pressure (product internal pressure) of the propellant is excessive or small, there is a possibility that a good injection state cannot be obtained in any case.
- the double-structured container constituting the two-component mixed aerosol product of the present invention has a first filling solution space for filling the first concentrate solution together with a filling space for the propellant for filling the propellant. And a second filling space for a stock solution for filling the second stock solution composition.
- the first stock solution composition and the second stock solution composition are simultaneously ejected in a mist form from each of the first stock solution filling space and the second stock solution filling space.
- the discharge mechanism is provided.
- Specific examples of the double-structure container according to the present invention include the following containers shown in FIGS. 1 and 2.
- FIG. 1 is an explanatory view showing an example of the structure of a double structure container used in the two-component mixed aerosol product of the present invention
- FIG. 2 is a cross-sectional view showing a cross section of an actuator in the double structure container of FIG. It is.
- the double structure container 10 includes a metal pressure resistant container 11 provided with an aerosol valve 12. Inside the pressure vessel 11, a first inner bag 15A made of, for example, an aluminum laminate film, which defines a first stock solution filling space for filling the first stock solution composition, and a second stock solution composition A second inner bag 15 ⁇ / b> B made of, for example, an aluminum laminate film is provided, which partitions the second stock solution filling space for filling the product.
- a propellant filling space for filling the propellant is formed in the pressure vessel 11 by a gap between each of the pressure vessel 11, the first inner bag 15A, and the second inner bag 15B.
- the aerosol valve 12 includes a first stem 14A and a second stem 14B which are disposed in the first housing 13A and the second housing 13B so as to be movable in the vertical direction and have stem passages therein.
- a common actuator 21 is provided at the upper ends of the first stem 14A and the second stem 14B.
- 16A communicates with the stem passage of the first stem 14A at the lower end of the first housing 13A, and extends through the first inner bag 15A toward the bottom of the pressure vessel 11. It is.
- Reference numeral 16B denotes a second dip tube that communicates with the stem passage of the second stem 14B at the lower end of the second housing 13B and extends in the second inner bag 15B toward the bottom of the pressure vessel 11.
- the components located inside the pressure vessel 11 and the actuator 21 are indicated by broken lines.
- the common actuator 21 includes a first actuator passage 22A communicating with the stem passage of the first stem 14A, a second actuator passage 22B communicating with the stem passage of the second stem 14B, and the first actuator passage 22B.
- An L-shaped mixing space 23 is provided which communicates with one actuator passage 22A and the second actuator passage 22B at one end and communicates with the discharge port 24A of the nozzle forming member 24 at the other end.
- the mixing space 23 is provided with a swirl passage 23A having a function of dividing the first undiluted solution composition and the second undiluted solution composition into fine droplets while passing therethrough.
- the common actuator 21 for the first stem 14A related to the first inner bag 15A and the second stem 14B related to the second inner bag 15B the inside of the first inner bag 15A
- the first undiluted solution composition filled in the first inner bag 15B and the second undiluted solution composition filled in the second inner bag 15B are simultaneously atomized from the first inner bag 15A and the second inner bag 15B, respectively.
- a discharge mechanism is formed for discharging.
- the double-structure container 10 having such a structure is filled with the first undiluted solution composition in the first inner bag 15A, and filled with the second undiluted solution composition in the second inner bag 15B.
- the inside of the pressure-resistant container 11 is always pressurized by the propellant. Therefore, when the actuator 21 is actuated (pressed down), the first inner bag 15A and the second inner bag 15B are contracted as the first inner bag 15A and the second inner bag 15B are contracted by the pressure of the propellant.
- the first stock solution composition and the second stock solution composition are simultaneously discharged from each of the inner bags 15B, and a mixture of the first stock solution composition and the second stock solution composition is discharged from the discharge port 24A of the actuator 21. It will be ejected in the form of a mist.
- the first stem 14A and the first stem 14A and the second stock container 10 are not operated when the actuator 21 is not operated.
- the second stem 14B is pushed upward, and the stem passages of the first stem 14A and the second stem 14B are blocked from the inside of the pressure vessel 11.
- the actuator 21 is pushed down, the first stem 14A and the second stem 14B are pushed down so that the stem passages of the first stem 14A and the second stem 14B are simultaneously connected to the inside of the pressure vessel 11. Communicated state.
- the first undiluted solution composition in the first inner bag 15A and the second undiluted solution composition in the second inner bag 15B are formed by the first dip tube 16A and the second dip tube 16B, respectively. Are distributed through the liquid flow path and discharged simultaneously.
- the first undiluted solution composition and the second undiluted solution composition discharged at the same time in this manner are respectively the stem passages relating to the first stem 14A and the second stem 14B, the first actuator passage 22A and the second undiluted solution composition.
- the mixing space 23 via the two actuator passages 22B mixed in the mixing space 23, and further passing through the swirling passage 23A, it is divided into fine droplets and discharged from the discharge port 24A in the form of a mist. Is done.
- the first stock solution composition filled in the first stock solution filling space and the second stock solution filling space are filled by the discharge mechanism.
- the second undiluted solution composition can be discharged simultaneously in the form of a mist, the discharge amount of the first undiluted solution composition from the first undiluted solution filling space, and the second unloaded from the second undiluted solution filling space. It is possible to adjust the discharge amount of the undiluted solution composition to an appropriate amount ratio, specifically, approximately the same amount.
- the first stock solution composition discharged from the first stock solution filling space and the second stock solution composition discharged from the second stock solution filling space The mixing ratio (mass of first stock solution composition: mass of second stock solution composition) is preferably 0.8: 1.2 to 1.2: 0.8. That is, each of the discharge amount of the first stock solution composition discharged from the first stock solution filling space and the discharge amount of the second stock solution composition discharged from the second stock solution filling space is the first stock solution. It is preferable to be within a range of ⁇ 20% with respect to the average value of the discharge amount of the stock solution composition and the discharge amount of the second stock solution composition.
- the mixing ratio (mass of the first stock solution composition: mass of the second stock solution composition) is, for example, that the viscosity of the first stock solution composition at a temperature of 20 ° C. is 1 to 1000 mPa ⁇ s, By setting the viscosity of the undiluted solution composition at a temperature of 20 ° C. to 1 to 1000 mPa ⁇ s, it can be within the above range.
- the two-component mixed aerosol product of the present invention as described above has a first undiluted solution composition and a second undiluted solution in each of the first undiluted solution filling space and the second undiluted solution filling space in the double-structured container. It is manufactured by filling the composition and filling the propellant filling space with the propellant.
- the two-component mixed aerosol product of the present invention includes a dual-structure container provided with a discharge mechanism for discharging the contents filled in the two stock solution filling spaces simultaneously in the form of a mist. It has been. Also, one of the two stock solution filling spaces is filled with the first stock solution composition having a specific viscosity, and the other is filled with the second stock solution having a specific viscosity that is not miscible with the first stock solution composition. The composition is filled. Therefore, a surfactant for emulsifying the first stock solution composition and the second stock solution composition is not required, and each of the first stock solution composition and the second stock solution composition is formulated. A great degree of freedom in design is obtained, and excellent formulation stability is obtained.
- the first stock solution composition and the second stock solution composition can be simultaneously discharged in appropriate amounts from each of the two stock solution filling spaces in the double-structure container, the first stock solution composition and The second stock solution composition can always be mixed at a constant ratio, and the discharge amount of one stock solution composition does not become excessive compared to the discharge amount of the other stock solution composition. Further, the discharged material can be applied thinly and uniformly to the application location. As a result, by simply operating the discharge mechanism, specifically, by discharging the first stock solution composition and the second stock solution composition only by, for example, pressing the actuator once (1 push), always, For the application location, it is possible to apply a desired amount of a discharge product that has the desired effect, that is, has the desired composition.
- the two-component mixed aerosol product of the present invention an excellent formulation stability can be obtained, and a mixture in which the first stock solution composition and the second stock solution composition are mixed at a desired ratio is obtained. Therefore, it can be easily applied uniformly with an intended application amount to the application location. Moreover, since it is possible to prevent or suppress the occurrence of a sticky feeling due to the blending of the surfactant, it is possible to obtain a good feeling of use when applied to the human body.
- active ingredients that are difficult to be used in combination in the same undiluted solution from the viewpoint of formulation stability and the like can be used together without causing any harmful effects.
- vitamin C water-soluble component
- vitamin E oil-soluble component
- aloe extract water-soluble component
- ethylhexyl methoxycinnamate oil-soluble component
- the two-component mixed aerosol product of the present invention since a non-combustible compressed gas is used as a propellant for the first and second concentrate compositions, it does not depend on the usage environment. High safety is obtained, and there is no risk of explosion accidents when the double structure container is discarded. Moreover, since each of the first stock solution composition and the second stock solution composition is not exposed to the air outside the container during application, storage stability over a long period of time can be obtained.
- a mist-like product is obtained as a discharge, and therefore it is necessary to mix the first stock solution composition and the second stock solution composition at an application location or the like. In addition, since it is not necessary to spread the applied discharge, it can be easily applied.
- Such a two-component mixed aerosol product of the present invention can be used for various uses such as human body goods, daily necessities, foods, etc., because a good feeling of use is exhibited when applied to the human body. It can be suitably used for the human body.
- the human body for example, as a whitening agent, beauty agent, sunscreen agent, makeup base agent, skin protective agent, moisturizer, hair styling agent, hair wax agent, hair treatment agent, hair restorer, massage agent, shaving agent, etc. Can be used.
- Example 1 Production of a two-component mixed aerosol product used as a cosmetic agent
- a first stock solution composition was prepared by mixing the following components. With respect to the obtained first stock solution composition, the viscosity at a temperature of 20 ° C. was measured using a BM type rotational viscometer (rotor No. 1, 60 rpm, after 1 minute), and it was 50 mPa ⁇ s.
- composition of the first stock solution composition Water: 93.96 mass% Sodium hyaluronate: 0.01% by mass Vitamin C derivative (ascorbic acid sulfate disodium salt): 0.40% by mass 1,3-butylene glycol: 5.00% by mass Phenoxyethanol: 0.30% by mass Citric acid: 0.02% by mass Sodium citrate: 0.01% by mass “Rosemary extract BG-J” (manufactured by Maruzen Pharmaceutical Co., Ltd.): 0.10% by mass “Camomile extract BG-J” (manufactured by Maruzen Pharmaceutical Co., Ltd.): 0.10% by mass "Peonies extract BG-JC” (manufactured by Maruzen Pharmaceutical Co., Ltd.): 0.10% by mass Total: 100.00 mass%
- a second stock solution composition was prepared by mixing the following components. About the obtained 2nd undiluted
- composition of the second stock solution composition Mineral oil: 76.30% by mass Vitamin E (tocopherol acetate): 0.20% by mass Dimethicone: 2.00% by mass Cyclopentasiloxane: 20.00% by mass Jojoba oil: 0.50% by mass Olive oil: 0.50% by mass Squalane: 0.50 mass% Total: 100.00 mass%
- a double structure container having the structure shown in FIGS. 1 and 2 is prepared, and the first undiluted liquid composition is filled in the first undiluted solution filling space (in the first inner bag) of the double structure container,
- the second undiluted solution filling space (in the second inner bag) is filled with the second undiluted solution composition, and the propellant filling space is filled with nitrogen gas as a propellant, and the product in the double structure container.
- the internal pressure was 0.7 MPa at 25 ° C.
- the first stock solution composition is an aqueous solution in which the first medium contains water and a vitamin C derivative (whitening component) is contained as the first component comprising a water-soluble component. It is a liquid cosmetic for beauty agents.
- the second undiluted solution composition is a liquid cosmetic for oily cosmetics in which the second medium contains mineral oil and cyclopentasiloxane, and vitamin E is contained as a second component comprising an oil-soluble component. .
- Example 2 Production of two-component mixed aerosol product used as sunscreen]
- a first stock solution composition was prepared by mixing the following components. With respect to the obtained first stock solution composition, the viscosity at a temperature of 20 ° C. was measured using a BM type rotational viscometer (rotor No. 1, 60 rpm, after 1 minute), and it was 50 mPa ⁇ s.
- composition of the first stock solution composition Purified water: 97.7% by mass Glycerin: 2.00% by mass Aloe extract: 0.1% by mass Methyl paraben: 0.2% by mass Total: 100.0 mass%
- a second stock solution composition was prepared by mixing the following components. About the obtained 2nd undiluted
- a double structure container having the structure shown in FIGS. 1 and 2 is prepared, and the first undiluted liquid composition is filled in the first undiluted solution filling space (in the first inner bag) of the double structure container,
- the second undiluted solution filling space (in the second inner bag) is filled with the second undiluted solution composition, and the propellant filling space is filled with nitrogen gas as a propellant, and the product in the double structure container.
- the internal pressure was 0.7 MPa at 25 ° C.
- a two-component mixed aerosol product used as a sunscreen was prepared.
- the first undiluted solution composition is an aqueous solution in which the first medium contains water, and aloe extract (anti-inflammatory component) is contained as the first component comprising a water-soluble component.
- Liquid cosmetic for skin lotions the second stock solution composition contains ethylhexyl palmitate, caprylylmethicone and cyclopentasiloxane as the second medium, and ethylhexyl methoxycinnamate (ultraviolet absorbing component) as the second component consisting of oil-soluble components.
- the two-component mixed aerosol product according to Example 1 and Example 2 was applied to the skin immediately after production, it was confirmed that a good feeling without stickiness was obtained.
- the two-component mixed aerosol product according to Example 1 and Example 2 is the first component (water-soluble component) and the second component even after long-term storage for one month under an environmental condition of 45 ° C. It was confirmed that a mist-like discharge product having a function (effect) derived from the component 2 (oil-soluble component) was obtained.
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Abstract
Description
具体的には、例えば液状化粧料の或る種のものとしては、水よりなる媒体中に有効成分として水溶性成分が含有された水性液組成物と、水と混和しない液状油よりなる媒体中に有効成分として油溶性成分が含有された油性液組成物とによって構成され、界面活性剤の作用によってエマルション組成物とされたものがある。
しかしながら、このような液状化粧料においては、長期間保存した場合に水相(水性液組成物)と油相(油性液組成物)との分離が生じるため、その適用に際して、液状化粧料を乳化する必要がある、という問題がある。また、適用箇所などにおいて界面活性剤による皮膚刺激が生じるおそれがある、という問題もある。また更に、使用用途、具体的には用いられる有効成分の種類によっては特有の問題が生じる場合がある。
例えば、美容剤用液状化粧料においては、美白効果の有効成分であるビタミンCおよびビタミンC誘導体が水溶性のものであり、抗酸化作用の有効成分であるビタミンEおよびビタミンE誘導体が油溶性のものであることから、エマルション組成物中において、これらの2つの有効成分の安定性(処方安定性)を保つことが難しい、という問題がある。
また、例えば日焼け止め剤用液状化粧料においては、有効成分である紫外線吸収成分を配合するためには、紫外線吸収成分を溶解するための多量の油性媒体が必要とされることから、使用感向上のために水を配合する場合には、多量の界面活性剤を配合する必要がある。そのため、多量の界面活性剤が含有されていることに起因して、適用箇所などにおいて、皮膚刺激が生じやすく、しかもベタツキ感などが生じて良好な使用感が得られない、という問題がある。
しかしながら、このような化粧品においては、その適用に際して、容器から水性液組成物と油性液組成物とを手のひら上に取り出して十分に混合した後、適用箇所に適用するという煩雑な作業を行わなくてはならない、という問題がある。しかも、ベタツキ感が生じて良好な使用感が得られない、という問題もある。
当該二重構造容器における噴射剤用充填空間には、圧縮ガスよりなる噴射剤が充填され、
当該二重構造容器における第1の原液用充填空間内には、第1の原液組成物が充填され、当該二重構造容器における第2の原液用充填空間内には、第2の原液組成物が充填されており、
前記第1の原液組成物は、第1の媒体中に当該第1の媒体に溶解する第1の成分が含有された液状のものであり、
前記第2の原液組成物は、第2の媒体中に当該第2の媒体に溶解する第2成分が含有された、前記第1の原液組成物と混和しない液状のものであり、
前記第1の原液組成物および前記第2の原液組成物は、いずれも温度20℃における粘度が1~1000mPa・sのものであり、
前記吐出機構は、第1の原液組成物および第2の原液組成物を微小液滴に分割して霧状に吐出させる機能を有するものであることを特徴とする。
前記第2の原液組成物は、油性媒体よりなる第2の媒体中に油溶性成分よりなる第2成分が含有された油性のものであることが好ましい。
従って、本発明の2液混合型エアゾール製品によれば、優れた処方安定性が得られ、また第1の原液組成物と第2の原液組成物とが所期の割合で混合された混合物よりなる吐出物を、適用箇所に対して所期の適用量で均一に適用することが容易にできる。しかも、人体に適用した場合においては、界面活性剤の配合に起因するベタツキ感の発生を防止または抑制することができるため、良好な使用感を得ることができる。
この本発明の2液混合型エアゾール製品においては、第1の原液用充填空間および第2の原液用充填空間の各々から同時に吐出される第1の原液組成物および第2の原液組成物は、吐出機構によって微小液滴に分割されて霧状とされる。すなわち、本発明の2液混合型エアゾール製品は、第1の原液組成物と第2の原液組成物との混合物が霧状の吐出物として得られるものである。
そして、第1の原液組成物を組成する第1の媒体および第1の成分、並びに第2の原液組成物を組成する第2の媒体および第2の成分は、本発明の2液混合型エアゾール製品の使用用途などに応じて適宜に選択される。
(1)第1の具体例は、第1の原液組成物が、水を主成分とする第1の媒体中に水溶性成分よりなる第1の成分が含有されたものであり、第2の原液組成物が、水と混和しない油性媒体よりなる第2の媒体中に油溶性成分よりなる第2の成分が含有されたものである。
(2)第2の具体例は、第1の原液組成物が、アルコールを主成分とする第1の媒体中にアルコール溶性成分よりなる第1の成分が含有されたものであり、第2の原液組成物が、当該第1の媒体を構成するアルコールと混和しない油性媒体よりなる第2の媒体中に油溶性成分よりなる第2の成分が含有されたものである。
(3)第3の具体例は、第1の原液組成物が、油性媒体よりなる第1の媒体中に油溶性成分よりなる第1の成分が含有されたものであり、第2の原液組成物が、当該第1の媒体を構成する油性媒体と混和しない油性媒体よりなる第2の媒体中に油溶性成分よりなる第2の成分が含有されたものである。ここに、第1の成分を構成する油溶性成分は、第1の媒体を構成する油性媒体には溶解するものの、第2の媒体を構成する油性媒体には溶解しないものであり、一方、第2の成分を構成する油溶性成分は、第2の媒体を構成する油性媒体には溶解するものの、第1の媒体を構成する油性媒体には溶解しないものである。
この例の2液混合型エアゾール製品において、第1の原液組成物は、非油性媒体(具体的には、水およびアルコール)よりなる第1の媒体中に非油溶性成分(具体的には、水溶性成分およびアルコール溶性成分)よりなる第1の成分が含有された液状のものである。また、第2の原液組成物は、水またはアルコールと混和しない油性媒体(具体的には、液状油)よりなる第2の媒体中に油溶性成分よりなる第2の成分が含有された液状のものである。
第1の原液組成物は、水を主成分とし、必要に応じてアルコールなどが含有された第1の媒体中に水溶性成分よりなる第1の成分が含有された液状のもの、またはアルコールを主成分とし、必要に応じて水などが含有された第1の媒体中にアルコール溶性成分よりなる第1の成分が含有された液状のものである。
また、第1の媒体を構成するアルコールとしては、エタノールなどが用いられる。
第1の媒体の含有割合が過大である場合には、第1の成分を十分な割合で含有させることができなくなるおそれがある。
一方、第1の媒体の含有割合が過小である場合には、吐出物が霧状になり難くなる。また、特に人体用として適用する場合においては、良好な使用感が得られなくなるおそれがある。
ここに、第1の成分は、必ずしも2液混合型エアゾール製品の用途との関係における有効成分でなくてもよく、例えば主たる有効成分に対する助剤、副次的な有効成分であってもよい。
抗酸化成分としては、例えばポリフェノールなどが挙げられる。
抗シワ成分としては、例えばグリセリンおよびヒアルロン酸などが挙げられる。
皮膜形成成としては、例えばポリビニルアルコール、ポリビニルピロリドンおよびカチオン化セルロースなどが挙げられる。
保湿成分としては、例えばアミノ酸、尿素、ピロリドンカルボン酸ナトリウム、ヒアルロン酸、グリセリンおよびポリエチレングリコールなどが挙げられる。
殺菌成分としては、例えば塩化ベンザルコニウム、塩化ベンゼトニウム、塩酸クロルヘキシジンおよびヒノキチオールなどが挙げられる。
紫外線吸収成分としては、例えばフェニルベンズイミダゾールスルホン酸などが挙げられる。
収斂成分としては、例えばクエン酸、コハク酸、タンニン酸、ハマメリス水およびアロエ、スルホ石炭酸亜鉛などが挙げられる。
抗炎症成分としては、例えばグリチルリチン酸ジカリウム、アロエ抽出液(アロエエキス)およびシソ抽出液などが挙げられる。
角層剥離成分としては、例えばサリチル酸、乳酸、硫黄およびレゾルシンなどが挙げられる。
鎮痒成分としては、例えば塩酸ジフェンヒドラミンおよびマレイン酸クロルフェニラミンなどが挙げられる。
育毛成分としては、例えばセンブリエキス、アデノシン、パントテン酸カルシウムおよびアセチルパントテニルエチルエーテルなどが挙げられる。
消臭成分としては、例えば緑茶エキスおよびミョウバンなどが挙げられる。
第1の成分の含有割合が過大である場合には、第1の成分が第1の原液組成物中において十分に溶解されなくなるおそれがある。
一方、第1の成分の含有割合が過小である場合には、第1の成分に係る効果が十分に得られなくなるおそれがある。
任意成分としては、例えば防腐剤、色素および香料などが挙げられる。また、任意成分として界面活性剤を用いることもできる。
第2の原液組成物は、第1の原液組成物における第1の媒体を構成する非油性媒体と混和しない油性媒体よりなる第2の媒体中に、油溶性成分よりなる第2の成分が含有された液状のものである。
この第2媒体を構成する液状油は、炭化水素化合物、エステル化合物、シリコーン化合物、油脂および高級アルコールからなる群から選ばれる少なくとも1種であることが好ましい。
エステル化合物としては、例えばミリスチン酸イソプロピル、ミリスチン酸ブチル、ミリスチン酸イソセチル、ミリスチン酸オクチルドデシル、ステアリン酸ブチル、ステアリン酸エチルヘキシル、イソステアリン酸イソプロピル、パルミチン酸イソプロピル、パルミチン酸エチルヘキシル、リノール酸エチル、サリチル酸ブチルオクチル、エチルヘキサン酸セチル、オリーブ脂肪酸エチル(オレイン酸エチル)等の脂肪酸エステル;トリエチルヘキサノイン、モノカプリル酸プロピレングリコール、ジカプリル酸プロピレングリコール、トリエチルヘキサン酸トリメチロールプロパン、トリイソステアリン酸トリメチロールプロパン、トリ(カプリル酸/カプリン酸)グリセリル等の多価アルコール脂肪酸エステル;アジピン酸ジイソプロピル、セバシン酸ジイソプロピル、セバシン酸ジエチル等の多塩基酸エステルなどが挙げられる。
シリコーン化合物としては、例えばジメチコン、シクロペンタシロキサンおよびカプリリルメチコンなどが挙げられる。
油脂としては、例えば白樺油、ローズヒップオイル、ホホバ油、大風子油、ひまわり油、グレープシードオイル、アボカドオイル、ヘーゼルナッツオイル、山茶花油、ブロッコリーシードオイル、ババスオイル、バオバブオイル、巴豆油、オリーブ油、コーヒー豆油、ひまし油、糠油、パーム油、パーム核油、桐油、モモ核油、チェリー油、グランベリーシードオイル、ナンヨウアブラギリ油、ショートニング、サラダ油、白絞油、紫蘇油、ペカンナッツオイル、ピスタチオオイル、荏油、榧油、杏仁油、アケビ油、コーン油、烏臼油、マカダミアナッツオイル、亜麻仁油、ヤシ油、シーバクソン、綿実油、麻実油、葡萄油、けし油、からし油、椿油、小麦胚芽油、月見草油、ピーナッツオイル、パンプキンシードオイル、ローレルオイル、紅花油、アルガンオイル、メドウフォーム油、マルーラナッツオイル、ざくろ種油、ココナッツオイル、ニーム油、大豆油、キウイフルーツシードオイル、モンゴンゴオイル、胡桃油等の植物油脂;ラノリン、馬油、ミンクオイル、スクワレン等の動物性油脂などが挙げられる。
高級アルコールとしては、例えばヘキシルデカノール、イソステアリルアルコール、オクチルドデカノール、デシルテトラデカノールおよびオレイルアルコールなどが挙げられる。
第2の媒体の含有割合が過大である場合には、第2の成分を十分な割合で含有させることができなくなるおそれがある。また、特に人体用として適用する場合においては、吐出物がベタツキ感を有するものとなって良好な使用感を得られなくなるおそれがある。
一方、第2の媒体の含有割合が過小である場合には、第2の成分を第2の原液組成物中において十分に溶解させることができなくなるおそれがある。
ここに、第2の成分は、必ずしも2液混合型エアゾール製品の用途との関係における有効成分でなくてもよく、例えば主たる有効成分に対する助剤、副次的な有効成分であってもよい。
抗シワ成分としては、例えばレチノールおよびレチノイン酸などが挙げられる。
皮膜形成成分としては、例えばニトロセルロース、高分子シリコーンおよびシリコーンレジンなどが挙げられる。
保湿成分としては、例えばワセリンなどが挙げられる。
殺菌成分としては、例えばピロクトンオラミンおよびイソプロピルメチルフェノールなどが挙げられる。
紫外線吸収成分としては、例えばメトキシケイヒ酸エチルヘキシル、パラジメチルアミノ安息香酸2-エチルヘキシル、オクトクリレン、エチルヘキシルトリアゾン、オキシベンゾン、t-ブチルメトキシジベンゾイルメタン、ジエチルアミノヒドロキシジベンゾイル安息香酸ヘキシル、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジンおよびメチレンビスベンゾトリアゾリルテトラメチルブチルフェノールなどが挙げられる。
清涼化成分としては、例えばメントール、乳酸メンチル、ハッカ油、ペパーミント油、カンフル、チモールおよびサリチル酸メチルなどが挙げられる。
温感成分としては、例えばカプサイシンなどが挙げられる。
抗炎症成分としては、例えばグリチルレチン酸およびアズレンなどが挙げられる。
鎮痒成分としては、例えばカンフルおよびメントールなどが挙げられる。
一方、第2の成分の含有割合が過小である場合には、第2の成分に係る効果が十分に得られなくなるおそれがある。
任意成分としては、例えばエタノール等のアルコールなどが挙げられる。また、任意成分として、界面活性剤を用いることもできる。
噴射剤としては、圧縮ガスが用いられる。
圧縮ガスとしては、例えば亜酸化窒素ガス、窒素ガス、炭酸ガスまたはこれらの混合ガスなどが挙げられる。
この噴射剤は、第1の原液組成物と第2の原液組成物とが同時に吐出されることに伴って、噴射剤用充填空間から二重構造容器の外部に吐出されることはない。
噴射剤の充填圧力(製品内圧)が過大である場合および過小である場合には、いずれの場合においても良好な噴射状態を得ることができなくなるおそれがある。
本発明の2液混合型エアゾール製品を構成する二重構造容器は、噴射剤を充填するための噴射剤用充填空間と共に、第1の原液組成物を充填するための第1の原液用充填空間と、第2の原液組成物を充填するための第2の原液用充填空間とを有している。そして、この二重構造容器には、第1の原液組成物および第2の原液組成物を、第1の原液用充填空間および第2の原液用充填空間の各々から同時に霧状に吐出させるための吐出機構が設けられている。
本発明に係る二重構造容器の具体例としては、例えば図1および図2によって示される下記の容器が挙げられる。
この二重構造容器10は、エアゾール用バルブ12が設けられている金属製の耐圧容器11を備えている。この耐圧容器11の内部には、第1の原液組成物を充填するための第1の原液用充填空間を区画する、例えばアルミラミネートフィルムよりなる第1の内袋15Aと、第2の原液組成物を充填するための第2の原液用充填空間を区画する、例えばアルミラミネートフィルムよりなる第2の内袋15Bが設けられている。また、耐圧容器11の内部には、耐圧容器11、第1の内袋15Aおよび第2の内袋15Bの各々の間の間隙によって噴射剤を充填するための噴射剤用充填空間が形成されている。エアゾール用バルブ12には、第1のハウジング13A内および第2のハウジング13B内の各々において上下方向に移動可能に配置された、内部にステム通路を有する第1のステム14Aおよび第2のステム14Bが設けられており、これらの第1のステム14Aおよび第2のステム14Bの上端には、共通のアクチュエータ21が設けられている。
図の例において、16Aは、第1のハウジング13Aの下端において第1のステム14Aのステム通路に連通し、第1の内袋15A内を耐圧容器11の底部に向かって伸びる第1のディップチューブである。また、16Bは、第2のハウジング13Bの下端において第2のステム14Bのステム通路に連通し、第2の内袋15B内を耐圧容器11の底部に向かって伸びる第2のディップチューブである。
図1においては、耐圧容器11およびアクチュエータ21の内部に位置する構成要素を破線にて示す。
このように、第1の内袋15Aに係る第1のステム14Aと、第2の内袋15Bに係る第2のステム14Bとに共通のアクチュエータ21を設けることにより、第1の内袋15A内に充填された第1の原液組成物と、第2の内袋15B内に充填された第2の原液組成物とを、それぞれ第1の内袋15Aおよび第2の内袋15Bから同時に霧状に吐出させるための吐出機構が形成されている。
すなわち、第1の原液用充填空間から吐出される第1の原液組成物の吐出量および第2の原液用充填空間から吐出される第2の原液組成物の吐出量のそれぞれが、当該第1の原液組成物の吐出量と当該第2の原液組成物の吐出量との平均値に対して±20%以内の範囲内にあることが好ましい。
ここに、混合比(第1の原液組成物の質量:第2の原液組成物の質量)は、例えば第1の原液組成物の温度20℃における粘度を1~1000mPa・sとし、第2の原液組成物の温度20℃における粘度を1~1000mPa・sとすることにより、上記の範囲内とすることができる。
そのため、第1の原液組成物と第2の原液組成物とを乳化するための界面活性剤が必要とされず、また第1の原液組成物および第2の原液組成物の各々においては、処方設計に大きな自由度が得られ、優れた処方安定性が得られる。
その上、二重構造容器における2つの原液用充填空間の各々から第1の原液組成物および第2の原液組成物を同時に適切な量で吐出させることができることから、第1の原液組成物と第2の原液組成物とを常に一定の量比で混合することができ、一方の原液組成物の吐出量が他方の原液組成物の吐出量に比して過剰となることがない。また、適用箇所に対して、吐出物を薄く均一に適用することができる。その結果、単に吐出機構を作動させる、具体的には例えばアクチュエータを1回押下操作(1プッシュ)することのみによって第1の原液組成物および第2の原液組成物を吐出させることにより、常に、適用箇所に対して、所期の作用効果の得られる、すなわち所期の組成を有する吐出物を、所期の量で適用することができる。
従って、本発明の2液混合型エアゾール製品によれば、優れた処方安定性が得られ、また第1の原液組成物と第2の原液組成物とが所期の割合で混合された混合物を、適用箇所に対して所期の適用量で均一に適用することが容易にできる。しかも、界面活性剤の配合に起因するベタツキ感の発生を防止または抑制することができるため、人体に適用した場合において、良好な使用感を得ることができる。
この本発明の2液混合型エアゾール製品においては、処方安定性等の観点から同一原液中において組み合わせて用いることが難しいとされている有効成分を、弊害を伴わずに併用することができる。具体的には、ビタミンC(水溶性成分)とビタミンE(油溶性成分)とを組み合わせて用いることができ、またアロエエキス(水溶性成分)とメトキシケイヒ酸エチルヘキシル(油溶性成分)とを組み合わせて用いることができる。
また、適用に際して、第1の原液組成物および第2の原液組成物の各々が容器外の空気に曝されることがないことから、長期間にわたる保存安定性を得ることができる。
人体用としては、例えば美白剤、美容剤、日焼け止め剤、化粧下地剤、皮膚保護剤、保湿剤、ヘアスタイリング剤、ヘアワックス剤、ヘアトリートメント剤、育毛剤、マッサージング剤、シェービング剤などとして用いることができる。
<第1の原液組成物の調製>
下記の各成分を混合することにより、第1の原液組成物を調製した。
得られた第1の原液組成物について、BM型回転粘度計(ローターNo.1,60rpm,1分後)を用いて温度20℃における粘度を測定したところ、50mPa・sであった。
水:93.96質量%
ヒアルロン酸ナトリウム:0.01質量%
ビタミンC誘導体(アスコルビン酸硫酸エステル2ナトリウム):0.40質量%
1,3-ブチレングリコール:5.00質量%
フェノキシエタノール:0.30質量%
クエン酸:0.02質量%
クエン酸ナトリウム:0.01質量%
「ローズマリー抽出液BG-J」(丸善製薬社製):0.10質量%
「カミツレ抽出液BG-J」(丸善製薬社製):0.10質量%
「シャクヤク抽出液BG-JC」(丸善製薬社製):0.10質量%
合計:100.00質量%
下記の各成分を混合することにより、第2の原液組成物を調製した。
得られた第2の原液組成物について、BM型回転粘度計(ローターNo.2,60rpm,1分後)を用いて温度20℃における粘度を測定したところ、100mPa・sであった。
ミネラルオイル:76.30質量%
ビタミンE(酢酸トコフェロール):0.20質量%
ジメチコン:2.00質量%
シクロペンタシロキサン:20.00質量%
ホホバ油:0.50質量%
オリーブ油:0.50質量%
スクワラン:0.50質量%
合計:100.00質量%
図1および図2に示す構成の二重構造容器を用意し、当該二重構造容器の第1の原液用充填空間内(第1の内袋内)に第1の原液組成物を充填し、第2の原液用充填空間内(第2の内袋内)に第2の原液組成物を充填すると共に、噴射剤用充填空間内に噴射剤として窒素ガスを、当該二重構造容器内における製品内圧が25℃で0.7MPaとなるように充填することにより、美容剤として用いられる2液混合型エアゾール製品を作製した。この2液混合型エアゾール製品において、第1の原液組成物は、第1の媒体が水を含有し、水溶性成分よりなる第1の成分として、ビタミンC誘導体(美白成分)が含有された水性美容剤用液状化粧料である。一方、第2の原液組成物は、第2の媒体がミネラルオイルおよびシクロペンタシロキサンを含有し、油溶性成分よりなる第2成分として、ビタミンEが含有された油性美容剤用液状化粧料である。
<第1の原液組成物の調製>
下記の各成分を混合することにより、第1の原液組成物を調製した。
得られた第1の原液組成物について、BM型回転粘度計(ローターNo.1,60rpm,1分後)を用いて温度20℃における粘度を測定したところ、50mPa・sであった。
精製水:97.7質量%
グリセリン:2.00質量%
アロエエキス:0.1質量%
メチルパラベン:0.2質量%
合計:100.0質量%
下記の各成分を混合することにより、第2の原液組成物を調製した。
得られた第2の原液組成物について、BM型回転粘度計(ローターNo.1,60rpm,1分後)を用いて温度20℃における粘度を測定したところ、80mPa・sであった。
メトキシケイヒ酸エチルヘキシル:10.0質量%
パルミチン酸エチルヘキシル:10.0質量%
カプリリルメチコン:5.0質量%
シクロペンタシロキサン:35.0質量%
エタノール:40.0質量%
合計:100.0質量%
図1および図2に示す構成の二重構造容器を用意し、当該二重構造容器の第1の原液用充填空間内(第1の内袋内)に第1の原液組成物を充填し、第2の原液用充填空間内(第2の内袋内)に第2の原液組成物を充填すると共に、噴射剤用充填空間内に噴射剤として窒素ガスを、当該二重構造容器内における製品内圧が25℃で0.7MPaとなるように充填することにより、日焼け止め剤として用いられる2液混合型エアゾール製品を作製した。この2液混合型エアゾール製品において、第1の原液組成物は、第1の媒体が水を含有し、水溶性成分よりなる第1の成分として、アロエエキス(抗炎症成分)が含有された水性化粧水用液状化粧料である。一方、第2の原液組成物は、第2の媒体としてパルミチン酸エチルヘキシルおよびカプリリルメチコンとシクロペンタシロキサンを含有し、油溶性成分よりなる第2の成分として、メトキシケイヒ酸エチルヘキシル(紫外線吸収成分)が含有された油性日焼け止め剤用液状化粧料である。
また、実施例1および実施例2に係る2液混合型エアゾール製品は、温度45℃の環境条件下において、1ヶ月間にわたって長期間保存した後においても第1の成分(水溶性成分)および第2の成分(油溶性成分)に由来の機能(作用効果)の得られる霧状の吐出物が得られることが確認された。
11 耐圧容器
12 エアゾール用バルブ
13A 第1のハウジング
13B 第2のハウジング
14A 第1のステム
14B 第2のステム
15A 第1の内袋
15B 第2の内袋
16A 第1のディップチューブ
16B 第2のディップチューブ
21 アクチュエータ
22A 第1のアクチュエータ通路
22B 第2のアクチュエータ通路
23 混合用空間
23A 旋回通路
24 噴口形成部材
24A 吐出口
Claims (8)
- 噴射剤用充填空間と、各々独立した2つの原液用充填空間とを有し、当該2つの原液用充填空間に充填された内容物を同時に吐出させるための吐出機構が設けられてなる二重構造容器を備え、
当該二重構造容器における噴射剤用充填空間には、圧縮ガスよりなる噴射剤が充填され、
当該二重構造容器における第1の原液用充填空間内には、第1の原液組成物が充填され、当該二重構造容器における第2の原液用充填空間内には、第2の原液組成物が充填されており、
前記第1の原液組成物は、第1の媒体中に当該第1の媒体に溶解する第1の成分が含有された液状のものであり、
前記第2の原液組成物は、第2の媒体中に当該第2の媒体に溶解する第2成分が含有された、前記第1の原液組成物と混和しない液状のものであり、
前記第1の原液組成物および前記第2の原液組成物は、いずれも温度20℃における粘度が1~1000mPa・sのものであり、
前記吐出機構は、第1の原液組成物および第2の原液組成物を微小液滴に分割して霧状に吐出させる機能を有するものであることを特徴とする2液混合型エアゾール製品。 - 前記第1の原液組成物は、油性媒体または非油性媒体よりなる第1の媒体中に油溶性成分または非油溶性成分よりなる第1の成分が含有されたものであり、
前記第2の原液組成物は、油性媒体よりなる第2の媒体中に油溶性成分よりなる第2成分が含有された油性のものであることを特徴とする請求項1に記載の2液混合型エアゾール製品。 - 前記吐出機構から吐出される第1の原液組成物および第2の原液組成物の混合比(第1の原液組成物の質量:第2の原液組成物の質量)が0.8:1.2~1.2:0.8であることを特徴とする請求項1または請求項2に記載の2液混合型エアゾール製品。
- 前記油性媒体が、炭化水素化合物、エステル化合物、シリコーン化合物、油脂および高級アルコールからなる群から選ばれた少なくとも1種であることを特徴とする請求項2または請求項3に記載の2液混合型エアゾール製品。
- 前記非油溶性成分が、美白成分、抗酸化成分、抗シワ成分、皮膜形成成分、保湿成分、殺菌成分、紫外線吸収成分、清涼化成分、収斂成分、温感成分、抗炎症成分、角層剥離成分、鎮痒成分、育毛成分および消臭成分からなる群から選ばれた少なくとも1種であることを特徴とする請求項2~請求項4のいずれかに記載の2液混合型エアゾール製品。
- 前記油溶性成分が、美白成分、抗酸化成分、抗シワ成分、皮膜形成成分、保湿成分、殺菌成分、紫外線吸収成分、清涼化成分、収斂成分、温感成分、抗炎症成分、角層剥離成分、鎮痒成分、育毛成分および消臭成分からなる群から選ばれた少なくとも1種であることを特徴とする請求項2~請求項5のいずれかに記載の2液混合型エアゾール製品。
- 前記吐出機構が、吐出される第1の原液組成物および第2の原液組成物を通過させながら微小液滴に分割する旋回通路を有することを特徴とする請求項1~請求項6のいずれかに記載の2液混合型エアゾール製品。
- 人体用であることを特徴とする請求項1~請求項7のいずれかに記載の2液混合型エアゾール製品。
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