WO2014156855A1 - Produit aérosol et utilisation du produit aérosol - Google Patents

Produit aérosol et utilisation du produit aérosol Download PDF

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Publication number
WO2014156855A1
WO2014156855A1 PCT/JP2014/057440 JP2014057440W WO2014156855A1 WO 2014156855 A1 WO2014156855 A1 WO 2014156855A1 JP 2014057440 W JP2014057440 W JP 2014057440W WO 2014156855 A1 WO2014156855 A1 WO 2014156855A1
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WO
WIPO (PCT)
Prior art keywords
stem
contents
mass
opening area
aerosol product
Prior art date
Application number
PCT/JP2014/057440
Other languages
English (en)
Japanese (ja)
Inventor
康輝 稲田
一樹 乃田
哲 竹花
敏郎 松村
Original Assignee
株式会社マンダム
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2013238547A external-priority patent/JP6243708B2/ja
Application filed by 株式会社マンダム filed Critical 株式会社マンダム
Priority to CN201480002167.XA priority Critical patent/CN104602821B/zh
Publication of WO2014156855A1 publication Critical patent/WO2014156855A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • 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
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • 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
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action
    • 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
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps

Definitions

  • the present invention relates to aerosol products and the use of aerosol products.
  • sunscreen cosmetics that are applied to the skin to prevent sunburn have been widely used.
  • various dosage forms such as creams, emulsions, gels, aerosol sprays and the like are known.
  • an aerosol-type sunscreen cosmetic that is applied as an aerosol spray has been used (for example, see Patent Document 1).
  • sunscreen cosmetics often contain metal oxides such as zinc oxide and titanium oxide as ultraviolet scattering agents.
  • sunscreen cosmetics have been required to have a higher sunscreen effect (ultraviolet ray protection effect).
  • UVAPF is 16 by a predetermined measurement method set by the International Organization for Standardization (ISO).
  • ISO International Organization for Standardization
  • aerosol spray type sunscreen cosmetics have a problem that the sunscreen cosmetics squirted during use tend to splash. Furthermore, in particular, in the case of sunscreen cosmetics containing a large amount of ultraviolet light scattering agent, it has been found that when a person inhales the scattered sunscreen cosmetics, it becomes easier to cough.
  • the present invention has been made in view of such circumstances, and provides an aerosol product and a use of the aerosol product that suppress the scattering of the content when the content of the aerosol spray is ejected.
  • An aerosol product includes a container main body that contains contents, a housing that is provided at the top of the container main body and in which the contents filled in the container main body flows from an inflow hole, and an upper portion of the housing.
  • the product is composed of a propellant and a stock solution containing powder, and the powder is mainly composed of a metal oxide, and the content of the powder in the stock solution is 15 -60 mass%, the actuator has 6 or more nozzles for ejecting the contents, and the stem is disposed in the internal flow path of the stem.
  • the ratio of the total opening area of the six or more nozzle holes to the total opening area of the stem orifice holes is 1 to 80.
  • the opening areas of the nozzle holes are each 0.05 to 1.0 mm 2 .
  • the metal oxide is zinc oxide and / or titanium oxide.
  • the aerosol product according to the present invention is a sunscreen cosmetic.
  • the present invention includes a container main body that contains the contents, a housing that is provided at the top of the container main body and in which the contents filled in the container main body flows from an inflow hole, and protrudes from the upper portion of the housing.
  • An aerosol product comprising a valve having a stem provided and biased upward by a biasing means, and an actuator disposed on an upper portion of the stem, and ejecting the contents by pressing the actuator.
  • the contents are composed of a propellant and a stock solution containing powder, and the powder is mainly composed of a metal oxide, and the content of the powder in the stock solution is 15 to 60.
  • the actuator has 6 or more nozzles for ejecting the contents, and the stem introduces the contents into the internal flow path of the stem.
  • the ratio of the total opening area of the six or more nozzle holes to the total opening area of the stem orifice holes is 1 to 80
  • the number of nozzle holes for ejecting the contents and the conditions relating to the opening area of the nozzle holes are limited to a specific range.
  • the particle diameter of the droplet of the content sprayed as a droplet can be controlled, and scattering can be suppressed. Further, this prevents the scattered contents from being sucked in and prevents coughing caused by the sucking.
  • the content of the aerosol product contains a large amount of powder such as an ultraviolet scattering agent, the effect of preventing coughing is remarkable.
  • FIG. 1 is a cross-sectional view for explaining the structure of an aerosol product according to the present invention.
  • FIG. 2 is a cross-sectional view of the periphery of a valve of an aerosol product according to the present invention.
  • FIG. 3A is a front view and FIG. 3B is a cross-sectional view taken along line AA of the actuator of the aerosol product according to the present invention.
  • FIG. 4 is a (a) front view and (b) BB cross-sectional view of a nozzle of an aerosol product according to the present invention.
  • FIG. 5 is a BB cross-sectional view of the nozzle of the second embodiment of the aerosol product according to the present invention.
  • FIG. 6 is a (a) front view, (b) CC sectional view, and (c) perspective view of a nozzle of a third embodiment of an aerosol product according to the present invention.
  • FIG. 7 is a (a) front view, (b) DD sectional view, and (c) perspective view of a nozzle of a fourth embodiment of an aerosol product according to the present invention.
  • FIG. 8 is a perspective view of an actuator for an aerosol product according to the present invention, wherein (a) the nozzle has 6 holes, (b) the nozzle has 12 holes, and (c) the nozzle has 28 holes.
  • FIG. FIG. 9 is a view for explaining the opening area of the nozzle hole having a step in the depth direction, (a) a front view of the nozzle hole, and (b) a sectional view taken along line EE of the nozzle hole.
  • FIG. 1 is a cross-sectional view for explaining a configuration of an aerosol product according to the present invention
  • FIG. 2 is a cross-sectional view around a valve of the aerosol product according to the present invention.
  • the aerosol product (100) according to the present invention includes a container body (A), an ejection device (B), and contents contained in the container body (A) as essential components.
  • the contents are accommodated in the container body (A).
  • the contents are composed of a stock solution containing powder and a propellant.
  • the undiluted solution and the propellant may exist in a state where a part of the propellant is dissolved in the undiluted solution and is completely mixed and uniform, or the propellant is not dissolved in the undiluted solution and both are non-uniform. May exist in any state.
  • FIG. 1 shows an example in which the contents are contained in a container.
  • the contents are present in the container main body (A) in a liquid phase (C) and a gas phase (D).
  • the gas phase (D) is composed of a gaseous component of the propellant.
  • the liquid phase (C) is comprised only from the undiluted
  • the liquid phase (C) includes powder (solid) that is a component in the stock solution.
  • Gas such as air, nitrogen, a carbon dioxide gas, nitrous oxide (especially compressed gas is preferable); Liquefied petroleum gas (LPG: Liquid Petroleum Gas), Dimethyl ether (DME: Dimethyl ether) ), Liquefied gases such as isopentane and fluorocarbon.
  • LPG Liquid Petroleum Gas
  • DME Dimethyl ether
  • Liquefied gases such as isopentane and fluorocarbon.
  • the said propellant may use only 1 type and may use 2 or more types. For example, only liquefied gas, only compressed gas may be used, and liquefied gas and compressed gas may be used together.
  • LPG and DME are preferred from the viewpoints of jetting power, environmental protection and productivity, and LPG is particularly preferred because the cooling ability and jetting ability can be controlled by the ratio of propane and butane.
  • the LPG is not particularly limited, but propane is 0.1 to 50% by mass (more preferably 1 to 20% by mass) and butane is 50 to 99.9% by mass (more preferably 80 to 99% by mass). LPG containing is preferred.
  • the vapor pressure at 20 ° C. of the liquefied gas used as the propellant is preferably 0.45 MPa or less (for example, 0.1 to 0.45 MPa) from the viewpoint of further improving the adhesion rate to the skin to be applied.
  • the pressure is preferably 0.15 to 0.25 MPa.
  • the initial product internal pressure is adjusted to 0.6 to 0.8 MPa at 35 ° C from the viewpoint that it can be used as a final product. It is preferable to adjust to 0.6 to 0.7 MPa. Since the initial product internal pressure is 0.6 MPa or more at 35 ° C., it is preferable because a good injection state can be easily maintained.
  • the content of the stock solution in the contents is not particularly limited, but is preferably 5 to 99.5% by mass with respect to 100% by mass of the contents.
  • the content of the propellant in the content is preferably 0.5 to 95% by mass with respect to 100% by mass of the content.
  • the contents are composed only of a stock solution and a propellant. That is, the total amount of the stock solution content and the propellant content in the contents is 100% by mass.
  • the contents of the stock solution and the propellant in the contents are preferably as follows.
  • the content of the stock solution in the contents is preferably 5 to 60% by mass, more preferably 5 to 40% by mass, and still more preferably 5 to 20% by mass.
  • the content of the propellant in the content is preferably 40 to 95% by mass, more preferably 60 to 95% by mass, and still more preferably 80 to 95% by mass with respect to 100% by mass of the content. .
  • the propellant When the propellant is less than 40% by mass, the internal pressure is low, the spray momentum is weak, and the usability may be reduced. In addition, when the content of the stock solution is less than 5% by mass, the stock solution amount is small, and the amount of the stock solution that adheres to the skin by one injection may be reduced, so that the usability may be lowered. In addition, the amount of undiluted solution in the aerosol product may be small, resulting in a short product life and poor practicality.
  • the stock solution contains a powder mainly composed of a metal oxide.
  • the “main component” is not particularly limited.
  • the content of the metal oxide in the powder is 30% by mass or more (ie, 30 to 100% by mass with respect to 100% by mass of the powder). %).
  • the content of the metal oxide in the powder is preferably 50% by mass or more, more preferably 70 to 100% by mass.
  • the metal oxide is not particularly limited, but zinc oxide, titanium oxide, and a mixture thereof are preferable.
  • the powder may be, for example, a powder composed only of a metal oxide or a powder composed of a metal oxide and a compound other than the metal oxide.
  • a powder in which a metal oxide is coated with a polymer film may be used.
  • the powder is not particularly limited, but is an ultraviolet scattering agent, for example.
  • Commercially available products may be used as the above powder. Examples of commercially available products include: Shin-Etsu Chemical Co., Ltd., trade name “SPD-Z5”; BASF Japan Ltd., trade name “Z-COTE”; Showa Product name “Maxlite ZS-064” manufactured by Denko Co., Ltd .; Product name “SOLAVEIL XT-300” manufactured by Croda Japan Co., Ltd .; Product name “Cosmeserve WP-UF (V)” manufactured by Dainippon Kasei Co., Ltd .; Examples include DSM Nutrition Japan Co., Ltd., trade name “Pulsol® TX”; Titanium Industry Co., Ltd., trade name “LS-600ZS”; Titanium Industry Co., Ltd., trade name “TD3312”.
  • the content of the powder in the stock solution is 15 to 60% by weight (15 to 60% by weight), preferably 18 to 45% by weight, more preferably 100% by weight of the stock solution. Is 20 to 40% by mass.
  • the content of the powder is 15 to 60% by weight (15 to 60% by weight), preferably 18 to 45% by weight, more preferably 100% by weight of the stock solution. Is 20 to 40% by mass.
  • the ultraviolet protection effect when the aerosol product according to the present invention is used as a sunscreen cosmetic is improved.
  • the content of the powder exceeds 60% by mass, the amount of the powder is too much, and the dip tube (3) described later pierces into the powder deposited and deposited on the bottom of the container. Clogging occurs, reducing the usability of aerosol products.
  • the stock solution may contain components other than the powder.
  • the components other than the above powder are not particularly limited, but for example, water; ethanol; fragrance; ethyl hexyl methoxycinnamate, hexyl diethylaminohydroxybenzoyl benzoate, t-butylmethoxydibenzoylmethane, bisethylhexyloxyphenol methoxyphenyl triazine, etc.
  • UV absorbers silicone oils such as cyclopentasiloxane, hydrogen dimethicone, caprylyl methicone, dimethicone; fatty acid esters such as isopropyl myristate, ethylhexyl palmitate, cetyl 2-ethylhexanoate; 1,3-butylene glycol, dipropylene Polyhydric alcohols such as glycol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol, glycerin; Antiseptics such as ethanol, octoxyglycerin, methylparaben; cooling agents such as menthol, menthyl glyceryl ether, camphor, peppermint oil; anti-inflammatory agents such as dipotassium glycyrrhizinate, stearyl glycyrrhizate; peonies, buttonpi, lo
  • the stock solution may contain a component that is liquid at room temperature (23 ° C.) and has a freezing point of ⁇ 15 ° C. or higher.
  • the content of the component that is liquid at room temperature (23 ° C.) and has a freezing point of ⁇ 15 ° C. or higher is 80% relative to 100% by mass of the stock solution from the viewpoint of further improving the sprayability of the aerosol product of the present invention.
  • the content is preferably less than mass%, more preferably less than 60 mass%. When the content is 80% by mass or more, when a liquefied gas is used as the propellant, the content may solidify near the nozzle and the jettability may decrease.
  • Examples of the component that is liquid at room temperature and has a freezing point of ⁇ 15 ° C. or higher include water, butyl myristate, decyltetradecanol, and the like.
  • the water content in the stock solution is preferably less than 80% by mass, more preferably less than 60% by mass.
  • the ejection device (B) includes an actuator (1), an aerosol container valve (2) (hereinafter sometimes simply referred to as a valve (2)), a mountain cup (4), a dip
  • the valve (2) includes a housing (21), a stem (22), and the like.
  • the housing (21) of the valve (2) is fitted to the boss (41) of the mountain cup (4) provided at the top of the container body (A), and the upper end of the valve (2)
  • the actuator (1) is attached to the.
  • the dip tube (3) is extended below from the lower end part of the valve
  • the valve (2) includes a housing (21) provided at the top of the aerosol container body, and a stem (22) protruding from the upper part of the housing (21) and urged upward by the urging means (23). ).
  • the internal space of the housing (21) includes an upper space (211) into which the stem base end (22a) is inserted and a lower space (212) communicating with the internal space of the dip tube (3).
  • the upper space (211) and the lower space (212) communicate with each other.
  • the liquid phase (C) sucked up from the dip tube (3) is sucked into the housing (21) through the lower space (212). That is, the housing (21) is configured such that the content filled in the container body (A) flows from the inflow hole.
  • the stem (22) has at least a stem orifice hole (221) for introducing the contents into the internal flow path of the stem (22).
  • a coil spring or the like can be used as the urging means (23).
  • the valve (2) will be described in more detail by describing the operation of ejecting the contents in the aerosol container.
  • the left half shows a state when not in use (when not ejected)
  • the right half shows a state when in use (when ejected).
  • the stem (22) is urged upward by the urging means (23) (see the left half of FIG. 2).
  • the lower portion of the stem (22) and the upper portion of the housing (21) are in close contact with each other via the seal rubber (24), that is, the valve (2) is closed.
  • the valve (2) is opened by lowering the stem (22) against the upward biasing force of the biasing means (23) (the right half of FIG. 2). reference).
  • the stem (22) is pushed down by pressing the actuator (1) provided on the stem (22).
  • the seal rubber (24) is deflected downward and the stem orifice hole (221) is opened.
  • the interface of the liquid phase (C) filled in the container main body (A) is pushed downward by the gas phase (D), and the contents are sucked up from the dip tube (3).
  • the contents sucked up from the dip tube (3) sequentially pass through the lower space (212), the upper space (211), the stem orifice hole (221), and the internal flow path (222) of the stem (22), as shown in FIG. It is ejected from the nozzle hole (111) of the actuator (1) shown in FIG.
  • FIG. 3A is a front view of an example of the actuator (1) of the aerosol product according to the present invention, and FIG.
  • the actuator (1) is arranged on the top of the stem (22).
  • the actuator (1) includes a nozzle (11) for ejecting the contents to the outside, and a stem joint portion (12) for joining the stem (22).
  • the nozzle (11) includes a nozzle internal flow path (112) and a nozzle hole (111), and the contents that have passed through the internal flow path (222) of the stem (22) from below are the flow path (13), nozzle It passes through the internal channel (112) in order and is ejected from the nozzle (111).
  • the actuator (1) does not necessarily have to be joined so as to always contact the stem (22).
  • the actuator (1) is only required to be attached so that the stem (22) can be pushed down when pressed.
  • the actuator (1) is not in contact with the stem (22) when not pressed. You may be comprised so that a stem may be pushed down in contact with (22).
  • FIG. 4 is (a) a front view and (b) a BB sectional view of an example of a nozzle of an aerosol product according to the present invention.
  • the nozzle (11) has six or more nozzle holes (111).
  • the number of nozzle holes in the present invention is 6 or more, preferably 6 to 28, more preferably 12 to 20 from the viewpoint of suppressing the scattering of the contents and spraying the contents uniformly over a wide range. .
  • the momentum of injection is dispersed, so that the contents can be prevented from being scattered.
  • the contents can be sprayed uniformly over a wide range, so that the uniform application property of the stock solution to the skin to be applied is improved.
  • the number of nozzles is 5 or less, the momentum of injection becomes strong and scattering tends to occur.
  • the scattered contents enter the body through the mouth, it can cause coughing due to “seed”.
  • 4 shows the case where the nozzle hole (111) has six holes. For example, as shown in (b) and (c) of FIG. 8, there may be 12 holes or 28 holes. It may be a number.
  • the total opening area of the nozzle hole (111) is defined by the ratio with the total opening area of the stem orifice hole (221).
  • the ratio of the total opening area of the six or more nozzle holes (111) to the total opening area of the stem orifice holes (221) is 1 to 80 , Preferably 3 to 45, more preferably 5 to 30.
  • the adhesion rate of the undiluted solution with respect to the skin to be applied is increased.
  • An improvement in the adhesion rate of the stock solution also leads to an improvement in the UV protection effect.
  • the ratio is less than 1, the droplets of the content to be ejected are small, and it is difficult to obtain these effects.
  • the momentum of injection will become weak when the said ratio exceeds 80, the usability of a spray falls.
  • the opening area of the nozzle hole is increased and the above ratio is increased to kill the momentum, the stock solution is attached only to the central portion of the jet and the uniform coating property is lowered.
  • One or a plurality of stem orifice holes (221) may be formed.
  • opening area means the narrowest opening area.
  • FIG. 9 is a view for explaining the “opening area” of the nozzle hole (111) having a step in the depth direction, (a) is a front view of the nozzle hole (111), and (b) is the nozzle hole. It is EE sectional drawing of (111).
  • the portion with the smallest radius [F in FIG. 9 (b)] is the narrowest part of the nozzle hole, and the region (G) indicated by the dot in FIG. 9 (a). Is the “opening area”.
  • the “total opening area of the nozzle hole” means the total of the opening areas of all the nozzle holes.
  • the “total opening area of the stem orifice holes” means the sum of the opening areas of all the stem orifice holes.
  • the total opening area of the nozzle hole (111) is not particularly limited, but is preferably 0.3 to 15 mm 2 from the viewpoint of spraying the contents over a wide range while maintaining sufficient jetting momentum, more preferably 1.5 to 10 mm 2 . When it is less than 0.3 mm 2 , the injection amount may decrease. When it exceeds 15 mm 2 , the momentum of jetting becomes weak and it may be difficult to reach the skin.
  • the opening area of each nozzle hole (111) (that is, the opening area per nozzle hole) is not particularly limited. From the viewpoint of spraying large droplets uniformly from each nozzle hole in a wide range and suppressing scattering, respectively. 0.05 to 1.0 mm 2 is preferable, and 0.1 to 0.6 mm 2 is more preferable.
  • the nozzle (11) can include a boss (113) that projects into the nozzle internal flow path (112) in the region inside the nozzle hole (111).
  • the presence of the boss (113) is preferable because the contents can be easily guided to each nozzle.
  • FIG. 5 which is a side sectional view of the nozzle of the second embodiment of the aerosol product according to the present invention, the boss (113) may be omitted.
  • FIG. 6 is a (a) front view, (b) CC sectional view, and (c) perspective view of a nozzle of a third embodiment of an aerosol product according to the present invention.
  • the content that has passed through the stem (22) passes through the nozzle internal flow path (112), and then passes through the nozzle internal flow path (112) and the guide portion (116) communicating with each of the injection holes (111).
  • (111) is ejected.
  • the interval between the nozzle holes (111) can be determined as appropriate.
  • FIG. 7 is a (a) front view, (b) DD sectional view, and (c) perspective view of a nozzle of a fourth embodiment of an aerosol product according to the present invention.
  • the nozzle (11) has a first convex portion (114) and a second convex portion (115), and the first convex portion (114) is formed higher than the second convex portion (115). .
  • the vicinity of the center of the nozzle hole (111) is formed on the circumference of the first convex part (114) and the second convex part (115).
  • the housing (21) in FIG. 2 includes a gas phase intake opening (VT) (213) on the side surface and a liquid phase intake opening (UT) (214) on the bottom surface.
  • the gas phase (D) of the contents is introduced into the upper space (211) from the gas phase intake opening (VT) (213), and the liquid phase (C) of the contents from the liquid phase intake opening (UT) (214). Is introduced into the lower space (212).
  • the introduced gas phase (D) and liquid phase (C) are introduced into the internal flow path (222) from the stem orifice hole (221) provided on the side surface of the stem (22) and sucked up to the actuator (1). It is done.
  • the housing may not be provided with a gas phase intake opening (VT).
  • the ratio (VT / UT) between the total opening area of the gas phase inlet opening (VT) (213) and the total opening area of the liquid phase inlet opening (UT) (214) is 0.5 or less (that is, 0 to 0). 5), more preferably 0 to 0.3. By setting it as this range, the ratio between the gas phase and the liquid phase in the sprayed mist can be further optimized. If the ratio (VT / UT) exceeds 0.5, the gas ratio of the sprayed mist is too high, so the adhesion rate of the stock solution to the skin may be reduced, and the UV protection effect may be reduced.
  • the total opening area of the liquid phase intake opening (UT) (214) is not particularly limited, but is preferably 0.5 mm 2 or more, more preferably 0.75 to 4.0 mm 2 . Setting the total opening area of the liquid phase intake opening (UT) (214) within this range is preferable because a sufficient amount of the liquid phase can be ejected and the ultraviolet ray protection effect is further improved.
  • the spray amount of the aerosol product according to the present invention is not particularly limited, but is preferably 0.3 to 3.0 g / second, more preferably 0.5 to 2.0 g / second.
  • the aerosol product which concerns on this invention is an aerosol product which sprays the content containing the powder which has a metal oxide as a main component.
  • sunscreen cosmetics are preferable.
  • the powder mainly composed of metal oxide in the contents functions as an ultraviolet scattering agent. An effect is obtained.
  • the aerosol product which concerns on this invention is not specifically limited, It is preferable that it is a human aerosol product used with respect to a person.
  • part of the aerosol product which concerns on this invention is not specifically limited, For example, an arm part, a foot
  • the aerosol product according to the present invention is used by, for example, directing the nozzle toward the part to be protected from ultraviolet rays and pushing the actuator.
  • the aerosol product according to the present invention further has, for example, a body odor suppression effect, an antiperspirant effect, a moisturizing effect, a scented effect, a cooling / cooling effect, a bactericidal effect, and the like. Also good. Especially, it is preferable to have the effect selected from the group which consists of a moisturizing effect, the effect which attaches
  • the aerosol product according to the present invention has a content mainly composed of a powder mainly composed of a metal oxide, so that the metal oxide functions as an ultraviolet scattering agent and exhibits an ultraviolet protection effect.
  • the actuator of the aerosol product according to the present invention has six or more nozzles, the contents can be uniformly ejected (sprayed) over a wide range, and the uniform application property of the contents is improved.
  • the momentum of the injection does not become too strong and the scattering of the contents can be suppressed, it is possible to prevent the occurrence of coughing and coughing caused by the scattered contents.
  • the ratio of the total opening area of the six or more nozzle holes to the total opening area of the stem orifice holes is 1 to 80.
  • a relatively large droplet can be ejected. For this reason, since the scattering of the contents can be suppressed, it is possible to exhibit an excellent effect of preventing the occurrence of coughing and coughing caused by the scattered contents.
  • the aerosol container according to the present invention having the number of nozzle holes, the nozzle hole diameter, the nozzle hole total opening area, the stem orifice hole diameter, and the stem orifice hole total opening area described in Tables 1 and 2 is filled with 60 g of contents to produce an aerosol product. did.
  • a stock solution having the following composition and a propellant using liquefied petroleum gas (LPG) were mixed so that the stock solution: LPG (mass ratio) was 10:90.
  • LPG liquefied petroleum gas
  • Examples 1 to 17 and Comparative Examples 1 to 5 Fill the aerosol container (capacity: 294 mL) with the number of nozzles, nozzle hole diameter, nozzle hole area, stem orifice hole diameter, stem orifice hole diameter, stem orifice hole area described in Table 3 to Table 5 with the contents (mass: 100 g).
  • An aerosol product was manufactured.
  • the housing in the said aerosol container was not equipped with the gaseous-phase intake opening (VT), and the opening area of the liquid phase intake opening (UT) (one number) was 3.80 mm ⁇ 2 >.
  • the contents used consisted of the stock solution and propellant described in Tables 3-5. In addition, the following were used for LPG and DME, respectively.
  • LPG 99% by mass of butane, 1% by mass of propane, manufactured by Koike Chemical Co., Ltd., vapor pressure at 20 ° C. of 0.15 MPa
  • DME Koike Chemical Co., Ltd., vapor pressure at 20 ° C. 0.41 MPa
  • Adhesion rate A wiping cloth (manufactured by Nippon Paper Crecia Co., Ltd., trade name “Kim Towel (Part No .: 61000)”) of 380 mm in length and 330 mm in width is pasted on a plate standing vertically with respect to the ground, and 15 cm away Each aerosol product was sprayed for 5 seconds.
  • the amount of mass change before and after the injection of each aerosol product was defined as “injection amount (g)”
  • the amount of mass change of the wiping cloth was defined as “attachment amount (g)” to the wiping cloth.
  • Adhesion rate (mass%) adhesion amount (g) / (injection amount (g) ⁇ stock solution ratio (mass%) / 100) ⁇ 100
  • the aerosol products (Examples 1 to 17) of the present invention have a powder content (total content when zinc oxide and titanium oxide are included) of 15 to 60% by mass, the number of nozzles of 6 or more, A good quality can be obtained by setting the ratio of the total opening area of the nozzle hole and the total opening area of the stem orifice hole (total opening area of the nozzle hole / total opening area of the stem orifice hole) to 1 to 80. Recognize. Specifically, in the case of the above-mentioned conditions, the result that both the absence of coughing and the injection state are good was obtained. In addition, it is presumed that the scattering was suppressed because the average particle size at this time was large. Furthermore, under these conditions, the adhesion rate is high and an excellent ultraviolet protection effect can be expected.
  • Test Examples 1 and 2 Comparative Test Example Table 6 shows test examples and comparative test examples showing the relationship between the content of metal oxide powder (ultraviolet scattering agent) in the stock solution and the UV protection effect (SPF value and PA value). Is shown.
  • SPF value was measured by a method according to ISO 24444, and the UVAPF value (PA value) was measured by a method according to ISO 24442.
  • the following is a formulation example of the aerosol product according to the present invention.
  • what was illustrated to said Example can be used as a container main body and a jetting apparatus.
  • the present invention is preferably used for aerosol products of a type in which the contents are ejected in a mist form. Furthermore, it is preferably used for aerosol products which are sunscreen cosmetics.

Abstract

La présente invention est un produit aérosol (100) doté de : un corps de récipient (A) pour maintenir les contenus ; une vanne (2) ayant une enveloppe (21), qui est située au sommet du corps de récipient (A) et dans laquelle les contenus remplis dans le corps de récipient (A) s'écoulent à partir d'un trou d'écoulement, et une tige (22) qui est agencée de façon à se projeter à partir de la partie supérieure de l'enveloppe (21) et est inclinée vers le haut par un moyen d'inclinaison ; et un actionneur (1), qui est disposé sur la partie supérieure de la tige (22). Le produit aérosol est caractérisé en ce que : les contenus sont configurés à partir d'un propulseur et d'une solution mère contenant 15-60 % en masse d'une poudre d'oxyde métallique ; l'actionneur (1) a au moins six buses de pulvérisation pour pulvériser les contenus ; la tige (22) a un orifice de tige pour introduire les contenus dans le canal interne de la tige ; et le rapport de la surface ouverte totale des au moins six buses de pulvérisation à la surface ouverte totale des orifices de tige est 1-80. Comme résultat de ladite configuration, la dimension de particule des gouttelettes pulvérisées peut être contrôlée et la diffusion peut être contrôlée.
PCT/JP2014/057440 2013-03-25 2014-03-19 Produit aérosol et utilisation du produit aérosol WO2014156855A1 (fr)

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CN111971375A (zh) * 2017-10-13 2020-11-20 荷兰联合利华有限公司 织物喷雾组合物
CN111201308A (zh) 2017-10-13 2020-05-26 荷兰联合利华有限公司 水性喷雾组合物
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JP7304736B2 (ja) * 2019-05-13 2023-07-07 シャープ株式会社 エアゾール組成物及びこれを充填したエアゾールスプレー缶
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CN104602821B (zh) 2018-02-23

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