JPS6018464B2 - aerosol container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an aerosol container, and its purpose is to make the mist particles that are atomized finer.

The aerosol container sprays the liquid in the form of a mist using the pressure of a propellant such as fluorocarbon gas, and it goes without saying that the finer the particles of the sprayed liquid, the better. For this reason, in the case of aerosol containers, various considerations have been made to make the particles of the atomized liquid as fine as possible.

The easiest way to thin the particles of the sprayed liquid mist these days is to increase the pressure of the propellant, but this has its limits due to legal restrictions.

For this reason, efforts are currently being made to obtain finer particles by improving the fogging device itself for aerosol containers.

Specific measures for this include making the dip tube thinner, making the pilot hole of the housing smaller, reducing the hole diameter at the tip of the nozzle head, and even increasing the break-up effect of the insert tip. .

Although these methods can achieve certain effects, in reality, there are problems with the accuracy of the molding and manufacturing techniques of each part, and they have never been satisfactory in terms of production.

The present invention was devised to solve the dissatisfied points in the conventional example described above, and embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows the structure of an aerosol container, which is considered to be the simplest.The upper end of the container body 1, which has a cylindrical shape with a bottom and contains liquid A and propellant B, is connected to a mountain cup 2.
It is sealed and closed.

An injection device consisting of a housing 3, a dip tube 4, a stem 5, and a nozzle head 6 is attached to the center of the mountain cup 2. The housing 3 serves as a base for attaching the spray device to the container body 1, and a dip tube 4 whose lower end reaches the bottom of the container body 1 is connected and fixed to the lower part located inside the container body 1. Ori,
Further, a stem 5 having a nozzle head 6 attached to the upper end is connected and assembled to the upper part located outside the container body 1.

An insert chip 7 forming an injection port is attached to the nozzle head 6, and the liquid A that has been pushed up is finally atomized by the break-up effect and is ejected.

The lower end of the stem 5 attached to the housing 3 is in elastic contact with a spring 8 inserted into the housing 3, and is constantly pushed up by the elasticity of the spring 8. The internal space of the housing 3 and the internal space of the stem 5 are in a state where the passage is blocked when the stem 5 is pushed up by the elasticity of the spring 8; Conversely, when the stem 5 and the nozzle head 6 are lowered, they flow through each other, and the liquid content A flows through the dip tube 4, the housing 3, and the nozzle head 6 due to the pressure of the propellant B.
The liquid is ejected through a stem 5, a nozzle head 6, and an insert tip 7.

The present invention provides an aerosol container injection device having such a configuration, in which the content liquid A formed in the forgery device is
A brazed resin 9 having a large number of thin open cells is arranged and fixed in the injection passage in such a manner as to block the injection passage.

The location where this sintered resin 9 is placed is not particularly limited, and may be placed anywhere as long as it is a path for the content liquid A.
A preferable arrangement example of the scale resin 9 will be explained with reference to FIGS. 5 to 5.

FIG. 2 shows the case where the adjacent striped resin 9 is arranged and fixed inside the dip tube 4. In this case, the dip tube 4
It is generally made of a flexible material, and therefore it is desirable to locate it near the housing 3, as shown, because it provides a stable assembly position.

FIG. 3 shows a case where the sintered resin 9 is placed and fixed in the housing 3. In this case, the housing 3 is often equipped with a spring 8, as in the illustrated embodiment. , it must be placed at a location that does not interfere with the operation of the spring 8. FIG. 4 shows a case where the sintered resin 9 is placed inside the stem 5.

FIG. 5 shows a case where a rust-competitive resin 9 is placed inside the nozzle head 6. In this case, the sintered resin 9 placed inside the nozzle head 6 is displaced by the pressure of the content liquid A that is injected. This is the most advantageous location for assembling the competitively bonded resin 9.

As described above, in the present invention, since the filament resin 9 is disposed at appropriate locations in the injection passage of the content liquid A in the atomization device of the aerosol container, the flow of the filament resin 9 is substantially reduced at the passage location where the filament resin 9 is disposed. It is possible to significantly reduce the road area, thereby giving sufficient force to the injected content liquid A,
Therefore, it is possible to obtain a fine grain twill.

In addition, the dip tube 4, housing 3, stem 5, and nozzle head 6 that form the spray mist passage for the liquid content A can be greatly reduced in their outflow area by arranging the resin 9 to be glued. Therefore, there is no need to take any pains to reduce the area of the flow path when molding or manufacturing these flow path forming parts, and therefore, molding and manufacturing of each part of the forgery device is facilitated.

Further, since the competitive resin 9 can be freely and easily molded into its shape, it can be freely and easily arranged and fixed in a suitable passage of the spray device.

As is clear from the above description, the present invention makes it possible to reliably obtain a mist of extremely fine particles, and also to simplify the production of the mist device itself, making it possible to easily and inexpensively obtain an aerosol container with good performance. It has many excellent effects such as the ability to

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing the basic structure of an aerosol container. Figures 2 to 5 show embodiments of the present invention. Figure 2 is a vertical cross-sectional view of the main part showing the case where the Akatsuki resin is assembled to the dip tube, and Figure 3 is a longitudinal sectional view of the main part showing the case where the resin is attached to the housing. Fig. 4 is a vertical cross-sectional view of the main part showing the case where the resin is assembled to the stem, Fig. 5 is a longitudinal cross-sectional view of the main part showing the case where the condensed resin is assembled to the stem, and Fig. 5 is the nozzle head where the condensed resin is roughly applied. FIG. Explanation of symbols 1: Container body, 2: Mountain cup, 3: Housing, 4: Date petite tube, 5: Stem, 6: Nozzle head, 7: Insert tip, 8: Spring, 9: Dawn resin, A: Content liquid, B: Propellant. 'Godi/Gekiga Z Kyou' Ushio Yudokoro Kame number meta thing

Claims (1)

[Claims] This is an aerosol container in which liquid content A is sprayed by the pressure of propellant B, and a sintered resin having a large number of thin open cells is placed at appropriate locations in a spray passage for liquid content A in a manner that blocks the passage. Aerosol container.