JP4796719B2 - 2-chamber aerosol container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention relates to a two-chamber aerosol container, more specifically with to integrate the inner cylinder and conduits, large storage volume of packings and about two-chamber aerosol container to prevent corrosion by packing.
[0002]
[Prior art]
A conventional two-chamber aerosol container is disclosed in Japanese Patent Publication No. 58-30282 as shown in FIG. In the figure, reference numeral 50 denotes a metal container body, and the container body 50 is filled with one agent mainly composed of a dye. On the other hand, an inner cylinder 52 and a conduit 53 are connected to the injection valve 51. The inner cylinder 52 and the conduit 53 are inserted into the container main body 50 and suspended in the container main body 50, and the injection valve 51 is connected to the container. It is clinched and fixed to the opening of the main body 50. The inner cylinder 52 is filled with two agents mainly composed of an oxidant, and the one agent and the two agents separately filled in the two chambers are simultaneously placed in the injection valve 51. It is guided, pushed out into the stem 54 and ejected from the nozzle 55 to the outside while mixing.
[0003]
[Problems to be solved by the invention]
However, such a conventional two-chamber aerosol container has the following drawbacks.
(1) Since the inner cylinder 52 and the conduit 53 connected to the injection valve 51 are separated separately, a long conduit is inserted into the opening of the container body during the insertion operation into the container body 50. Since it is caught in the mouth, it has been difficult to insert.
(2) Conventionally, a coating agent such as polyolefin, polyamide, epoxy phenol, or epoxy urea is spray-coated on the inner surface of the container body 50 shown in FIG. However, since there are coating spots and pinholes, one agent permeates from the site and corrodes the container body 50.
(3) Since the material of the inner cylinder 52 shown in FIG. 8 is a single layer resin material such as polyethylene, polypropylene, or vinyl chloride, the two agents filled in the inner cylinder 52 are oxidizing agents such as hydrogen peroxide. In the case of the content containing oxygen, there is a disadvantage that oxygen generated by decomposition with time passes through the inner cylinder 52 and mixes into the outer one agent, and is already oxidized before the dye is jetted to the outside. There was a problem to do.
[0004]
The present invention has been made paying attention to such a conventional problem, and facilitates the insertion work of the inner cylinder and the conduit into the container main body while maintaining a sufficient volume with respect to the inner cylinder accommodating one agent. The purpose is to do. It is another object of the present invention to provide a two-chamber aerosol container that prevents corrosion of the inner surface of the container body and prevents mixing of one agent and two agents before use.
[0005]
[Means for Solving the Problems]
In order to solve this problem, the solution means corresponding to the invention according to claim 1 is characterized in that one agent is filled in the container body and two agents are filled in the inner cylinder accommodated in the container body . In the two-chamber aerosol container in which the upper end of the tube and the upper end of the conduit for passing one agent are connected to an injection valve, and the first and second agents are mixed and injected by operation of the injection valve , recess having an inner diameter corresponding to the outer diameter of the conduit is formed, a two-chamber aerosol container you characterized in that the conduit is fixed in its recess.
[0006]
Corresponding solutions to a second aspect of the invention, the the container body inner surface, two-chamber aerosol you characterized in that it is fitted with a synthetic resin inner bag for preventing corrosion due to the 1 agent in close contact It is a container.
[0007]
SOLUTION corresponding to the invention of claim 3, wherein, the inner cylinder is 2 rooms aerosol inner and outer layers are you, characterized in that the polyolefin resin, the intermediate layer is composed of a multilayer gas barrier resin and an adhesive layer It is a container. A solution corresponding to the invention of claim 4 is a two-chamber aerosol characterized in that the conduit extends straight from the injection valve to the lower end.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1 to 6 are drawings showing a first embodiment according to the present invention. Reference numeral 1 denotes a container body made of a metal material such as aluminum or steel, and an inner cylinder 3 and a conduit 4 connected to an injection valve 5 are suspended in the container body 1. And as shown in FIG.5 and FIG.6, the conduit | pipe 4 is closely_contact | adhered to the recessed part 3a formed in the trunk | drum side surface of the inner cylinder 3 so that a substantially half circumference may contact. When the inner cylinder 3 and the conduit 4 are connected to the injection valve 5 in this close state, the recess 3a and the conduit 4 of the inner cylinder 3 are integrated so as not to be separated and suspended in the container body 1. Is done.
[0009]
As shown in FIG. 4, the material constituting the inner cylinder 3 is a polyethylene resin 3a and an adhesive layer 3b from the outer layer, then an intermediate layer is a gas barrier resin 3c such as saponified ethylene-vinyl acetate copolymer or nylon, and an adhesive. The layer 3b and the innermost layer are composed of a multilayer structure of polyethylene resin 3a (see FIG. 4 which is an enlarged cross-sectional view taken along arrow A in FIG. 3).
[0010]
Further, an inner bag 2 is mounted inside the container body 1 in a state of being in close contact with the inner surface of the container body 1. A sufficient filling volume of one agent can be secured by this close contact. The material constituting the inner bag 2 is suitably a polyolefin-based or polyamide-based resin material. One agent is composed of an oxidation dye, an alkali agent, a surfactant, a solvent, and the like, and a propellant such as dimethyl ether is mixed with the one agent. Two agents are a hydrogen peroxide solution and a stabilizer. In addition to the hair dye, the corrosion-resistant two-chamber aerosol container according to the present invention can be filled with cosmetics such as shavings, facial packs, adhesives, etc. that are used by mixing one and two agents at the time of use. . FIG. 7 is a cross-sectional view showing a second embodiment when the inner cylinder 13 and the conduit 14 are suspended through the injection valve 15 in the container body 11 of the small aerosol container. It has the same function as the first embodiment.
[0011]
Next, the operation of the present invention will be described. When the hair dye is used, when the push button on the upper part of the spray nozzle 5a is pressed to open the spray valve 5, one agent causes the conduit 4 to flow through the pressure of the propellant mixed in one agent as shown in FIG. As well as being guided into the injection valve 5, the two agents in the inner cylinder 3 are also guided into the injection valve 5. And 1 agent and 2 agents mix within the housing of the injection valve 5, and it injects with the foam state from the injection nozzle 5a. At this time, one dye is oxidized by two oxidizing agents to develop color.
[0012]
When the inner cylinder 3 and the conduit 4 are inserted into the container body 1 according to the present invention, the inner cylinder 3 and the conduit 4 are integrated, so that the insertion operation can be performed smoothly. Further, corrosion of the inner peripheral surface of the container body 1 due to one agent can be completely prevented, and a sufficient filling volume of one agent can be secured. Furthermore, since the inner cylinder 3 is composed of a multilayer having a gas barrier resin, it is possible to completely prevent the first agent and the second agent from mixing in the container body 1 before injection.
[0013]
【The invention's effect】
As described above, according to the present invention, the insertion operation of the inner cylinder and the conduit can be facilitated, the corrosion of the container body can be prevented, and a sufficient storage capacity of one agent can be secured, and further, before use. In addition, it has the effect of completely preventing mixing of one and two agents.
[Brief description of the drawings]
FIG. 1 is a front sectional view showing a first embodiment of a corrosion-resistant two-chamber aerosol container according to the present invention.
FIG. 2 is an exploded cross-sectional view showing a first embodiment of a corrosion-resistant two-chamber aerosol container according to the present invention.
FIG. 3 is a partially enlarged sectional view showing a first embodiment of a corrosion-resistant two-chamber aerosol container according to the present invention.
4 is an enlarged cross-sectional view of the portion indicated by an arrow A in FIG.
FIG. 5 is a front sectional view in which an inner cylinder and a conduit are integrated.
6 is an enlarged sectional view taken along line BB in FIG.
FIG. 7 is a front sectional view showing a second embodiment of the corrosion-resistant two-chamber aerosol container according to the present invention.
FIG. 8 is a front sectional view showing a conventional two-chamber aerosol container.
[Explanation of symbols]
1 11 Container body 2 Inner bag 3 13 Inner cylinder 3a Polyolefin resin 3b Adhesive layer 3c Gas barrier resin 4 14 Conduit

Claims (4)

The container body is filled with one agent, and the inner cylinder accommodated in the container body is filled with two agents. The upper end of the inner cylinder and the upper end of the conduit through which the one agent passes are connected to the injection valve, and the injection In the two-chamber aerosol container in which the first agent and the second agent are mixed and injected by operating the valve ,
A recess having an inner diameter corresponding to the outer diameter of the conduit is formed on the side surface of the inner cylinder ,
2 rooms aerosol container you characterized in that the conduit is closely fixed to the recess. The two- chamber aerosol container according to claim 1 , wherein an inner bag made of synthetic resin for preventing corrosion due to the one agent is attached to the inner surface of the container main body in a close contact state . 3. The two- chamber aerosol container according to claim 1, wherein the inner cylinder is constituted by a multilayer resin of an inner layer and an outer layer of a polyolefin resin, and an intermediate layer of a gas barrier resin and an adhesive layer. The two-chamber aerosol container according to any one of claims 1 to 3, wherein the conduit extends straight from the injection valve to the lower end.

Images