JP2005329350A - Aerosol device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aerosol device capable of ejecting an aerosol composition containing a powder and having good user's convenience. <P>SOLUTION: The aerosol device 1 is equipped with an aerosol container 5 filled with a jet gas G, an aerosol valve 3 opened and closed in order to eject the jet gas G in the aerosol container 5 and a push button member 10 attached to the aerosol valve 3. A valve stem mounting part 16 mounted on the opening end of a valve stem 3a is provided to one end of a gas flow channel 14 piercing through the push button member 10 and a jet orifice member 9 having a jet orifice part 8 is mounted on a gas outlet 15 of the other end of the gas flow channel 14. A powder container 2 mounted on the leading end of the jet orifice part 8 through a joint member 4 is filled with a powder P and a powder passage 11 meeting with the gas flow channel 14 at the leading end of the jet orifice part 8 communicates with the inside of the powder container 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an aerosol device, and more particularly to an aerosol device used for an aerosol composition containing a powder.

Conventionally, aerosol compositions containing powder (powder) such as antiperspirant, disinfectant, pest repellent, etc., after mixing each component such as oil-soluble component, liquefied gas, etc. according to the application, The aerosol composition was filled into an aerosol container, and the aerosol valve integrated into the aerosol container was pushed down during use to inject the aerosol composition out of the container (for example, Patent Documents 1, 2, and 3). reference).

JP 2000-142849 A JP 2001-114360 A Japanese Patent Laid-Open No. 2003-267552

However, as described above, the aerosol composition filled in the conventional aerosol container is such that the powder having a large specific gravity separates from other components and easily settles at the bottom, so that a steel ball for stirring is put in the container. In addition, it was necessary to shake and shake the aerosol container before use, which was not convenient. In addition, the powder may not be sprayed uniformly if stirring is not sufficient.

Further, when the aerosol composition containing the powder is sprayed from the aerosol valve to the outside of the container, the valve stem of the aerosol valve is likely to be clogged.
Accordingly, an object of the present invention is to provide an aerosol apparatus that can eliminate the above-mentioned problems of the prior art and can inject a powder-containing aerosol composition satisfactorily.

The above object of the present invention is to provide an aerosol container filled with a propellant gas, an aerosol valve for opening and closing to eject the spray gas in the aerosol container, an operating member attached to a valve stem of the aerosol valve, A valve stem fitting part provided at one end of a gas flow path penetrating in the operation member, a nozzle part provided at the other end of the gas flow path,
A powder container filled with powder and attached to the tip of the nozzle part; a powder passage that merges with the gas flow path at the tip of the nozzle part and communicates with the powder container;
This is achieved by an aerosol device comprising

According to the aerosol device having the above configuration, when the aerosol valve is opened by operating the operation member,
The spray gas in the aerosol container is ejected from the nozzle part at a high speed, and the vicinity of the tip of the nozzle part becomes negative pressure due to the ejector action, so that the powder in the powder container is attracted through the powder passage and is accompanied with the spray gas. Is injected into.
Therefore, the powder does not clog the stem hole of the valve stem, the gas flow path and the nozzle part of the operation member.

In addition, since the powder attracted by the negative pressure of the spray gas ejected from the nozzle part is sprayed together with the spray gas, the powder can be sprayed in a state of mixing and stirring only by operating the operation member. Can be provided.
Further, the spray gas does not need to eject powder dispersed in the liquefied gas as in the prior art, and it is sufficient to eject the vaporized gas of the liquefied gas stored in the aerosol container. Is not too strong.

Preferably, the powder container has an annular powder accommodating space defined around the axis of the nozzle part, and the powder passage extends from the inner peripheral wall of the powder container to the tip of the nozzle part. A plurality of communication holes extending in the direction.
In this case, the powder storage space can be increased without increasing the size of the powder container, and the powder in the powder container can be efficiently attracted through the plurality of communication holes.

According to the aerosol device of the present invention, an aerosol composition containing a powder can be jetted well, and an aerosol device with good usability can be provided.

Hereinafter, an aerosol device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the aerosol apparatus 1 according to the present embodiment includes an aerosol container 5 filled with an injection gas G, an aerosol valve 3 that opens and closes to inject the injection gas G in the aerosol container 5, And a push button member (operation member) 10 attached to the valve stem 3 a of the aerosol valve 3.

The push button member 10 is a plastic molding member in which a gas flow path 14 is provided, and a valve stem fitting portion that is fitted to an opening end of the valve stem 3a at one end of the gas flow path 14. 16 is provided, and the nozzle part 8 is provided by attaching the nozzle member 9 to the gas outlet 15 at the other end.

Further, a powder container 2 is mounted on the tip of the nozzle member 9 via a joint member 4. The powder container 2 filled with powder has an annular powder receiving space 2a defined around the axis C of the nozzle 8 and is externally fitted to the substantially bottomed cylindrical joint member 4. ing. An air hole 1 is connected to the front wall of the powder container 2 through the filter 19 that does not allow the powder P to pass therethrough, and the atmospheric pressure is released.
7 is provided.
A plurality of powder outlet holes 6 are formed along the circumferential direction on the inner peripheral wall of the powder container 2, and together with the powder communication holes 7 formed in the corresponding joint member 4, at the tip of the nozzle portion 8. A powder passage 11 that merges with the gas flow path 14 and communicates with the powder container 2 is formed.

Examples of the injection gas G filled in the aerosol container 5 include dimethyl ether, chlorofluorocarbons, aliphatic hydrocarbon compounds having 3 to 5 carbon atoms (liquefied petroleum gas, LPG), and specific examples include propane, i- Examples include butane, n-butane, i-petan, n-petan and the like, and these can be used alone or in admixture of two or more.
Further, in the aerosol container 5, active ingredients such as a moisturizer, hair set agent, ultraviolet absorber, whitening agent, hair-growth agent, anti-inflammatory agent, refreshing agent, fragrance, etc. according to the application in advance. The aerosol composition may be filled together with the injection gas G.

Furthermore, as the powder P accommodated in the powder accommodating space 2a of the powder container 2, metal salt powder, inorganic powder, resin powder, or the like is used. For example, aluminum chlorohydrate, tolnaftate, lidocaine, magnesium oxide, zinc oxide, titanium oxide, boron nitride, calcium carbonate, magnesium carbonate, yellow iron oxide, bengara, black iron oxide, gunjo, chromium oxide, anhydrous silicic acid, silicic acid Magnesium, talc, kaolin, mica, mica titanium, bismuth oxychloride, nylon powder, polyethylene powder, polystyrene powder, acrylic resin powder, for example, hybrid fine powder of inorganic pigment such as titanium oxide and organic polymer powder such as nylon 12 Is mentioned.

Next, operation | movement of the aerosol apparatus 1 of this embodiment is demonstrated.
When the aerosol container 5 shown in FIG. 1 is used upright, an in-container suction port (not shown) of the aerosol valve 3 communicates with the gas phase portion of the injection gas G. Therefore, when the push button member 10 is pushed down and the aerosol valve 3 is opened, the vaporized gas of the injection gas G in the aerosol container 5 is ejected from the nozzle part 8 through the gas flow path 14.
When the jet gas G is ejected from the nozzle part 8 at a high speed, the vicinity of the tip of the nozzle part 8 becomes negative pressure by the ejector action, so that the powder P in the powder container 2 is attracted through the powder passage 11. Then, it is injected to the outside from the injection port 4a together with the injection gas G.

That is, in the aerosol device 1 of the present embodiment, the powder P is accommodated in the powder container 2 attached to the nozzle member 9 of the push button member 10, and the injection gas G filled in the aerosol container 5 is the nozzle part. Since the powder P is injected together with the injection gas G by being ejected from the high speed 8, the powder P is clogged in the stem hole of the valve stem 3 a, the gas flow path 14 of the push button member 10, and the injection port 8. There is nothing.
Further, since the powder P does not pass through the aerosol valve 3, an ordinary aerosol valve for liquefied gas can be used for the aerosol valve 3. Therefore, it is not necessary to use a special aerosol valve for injecting powder, and costs can be reduced.

Further, in the aerosol device 1, the powder P in the powder container 2 is attracted by the ejector action of the jet gas G ejected from the jet port portion 8 at a high speed.
Therefore, the powder P can be sprayed in a state of being stirred only by the push-down operation of the push button member 10, and an easy-to-use aerosol apparatus can be provided.

Further, the spray gas G does not need to eject powder dispersed in the liquefied gas as in the conventional aerosol device, and if the vaporized gas of the liquefied gas in the liquefied gas state contained in the aerosol container 5 is ejected. Since it is good, the cooling sensation does not become too strong when jetted to the human body as compared with the case where the liquefied gas is jetted.

Further, the powder container 2 according to the present embodiment has an annular powder housing space 2 a that is partitioned around the axis C of the nozzle part 8, and the powder passage 11 extends from the inner peripheral wall of the powder container 2 to the nozzle part. 8 extends toward the tip of the powder container 8 so that the powder storage space 2a can be made large without increasing the size of the powder container 2, and a plurality of powder passages 1 are provided.
The powder P in the powder container 2 can be efficiently attracted through 1.

Therefore, according to the aerosol apparatus 1 of this embodiment, the aerosol composition containing the powder P can be favorably ejected without causing clogging, and an easy-to-use aerosol apparatus can be provided.
The configurations of the aerosol container, the aerosol valve, the operation member, the gas flow path, the nozzle part, the powder container, the powder passage, and the like according to the aerosol apparatus of the present invention are not limited to the configuration of the above embodiment, and the present invention. Of course, various forms can be adopted based on the purpose of the above.
For example, the aerosol valve 3 in the above embodiment has a structure that opens when the valve stem 3a is pushed down. However, an aerosol valve (so-called tilt valve) that can inject an injection gas by tilting the valve stem is used. You can also.

It is a principal part expanded sectional view of the aerosol apparatus concerning one embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aerosol apparatus 2 Powder container 2a Powder accommodation space 3 Aerosol valve 3a Valve stem 4 Joint member 5 Aerosol container 6 Powder outlet hole 7 Powder communication hole 8 Injection hole part 9 Injection hole member 10 Push button member (operation member)
11 Powder passage 12 Gas ejection nozzle 14 Gas flow path 15 Gas outlet 16 Valve stem fitting part C Axis line P Powder G Injection gas

Claims (2)

An aerosol container filled with propellant gas;
An aerosol valve that opens and closes to eject the spray gas in the aerosol container;
An operating member attached to the valve stem of the aerosol valve;
A valve stem fitting portion provided at one end of a gas flow path penetrating in the operation member;
A nozzle hole provided at the other end of the gas flow path;
A powder container filled with powder and attached to the tip of the nozzle part;
A powder passage that merges with the gas flow path at the tip of the nozzle and communicates with the powder container;
Aerosol device with The powder container has an annular powder storage space defined around the axis of the nozzle part, and the powder passage extends from an inner peripheral wall of the powder storage space toward the tip of the nozzle part. The aerosol apparatus according to claim 1, further comprising a communication hole.

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