JP2002066388A - Jetting nozzle for aerosol - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jetting nozzle which is used for excellently foaming the content of an aerosol and discharging it, improving the sticking property to a part to be coated and performing the oxidation of the oxidation type aerosol content excellently, which exhibits excellent effects and which is formed with a simple structure at a low cost and being prevented from clogging. SOLUTION: A collision wall 8 which faces a hole 5 for jetting the aerosol content and which generates foam by the collision of the aerosol and the mixing with air is arranged. The collision wall 8 is formed in a retaining chamber 7 for temporarily retaining the foamed aerosol content and a flow-out port 13 of the foamed aerosol content is formed in the retaining chamber 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to hair products, cosmetics, deodorants and antiperspirants, other human body products, insecticides, cleaners,
In the aerosol contents of industrial goods, automobile goods, foods, etc., for foaming by mixing with air,
The present invention relates to an aerosol injection nozzle.

[0002]

2. Description of the Related Art Conventionally, immediately before using aerosol contents,
There is an invention described in Japanese Patent Application Laid-Open No. Hei 8-229463 as a spray nozzle for foaming or oxidizing the contents of an aerosol by mixing with air and discharging the contents to the outside. This conventional invention faces the jet port of the aerosol contents,
A mesh screen is placed. Then, when the aerosol content ejected from the ejection port flows out,
By passing through the fine openings of the mesh screen, the contents of the aerosol are crushed and mixed with the air,
It causes foaming.

[0003]

However, according to the above-mentioned prior art, in order to obtain good foaming, it takes time and skill to adjust the size of the opening of the mesh screen and to attach it, and to reduce the structure of the injection nozzle. Was complicated. In addition, since the contents of the foamed aerosol are likely to remain on the mesh screen, the residue is likely to solidify or to adhere to external dust. For this reason, the openings of the mesh screen are often clogged, and the aerosol contents cannot be discharged well in many cases.

The present invention has been developed to eliminate the above-mentioned disadvantages.
The aerosol content and the air are mixed well to enhance the foaming effect of the aerosol content and to improve the adhesion to the object to be coated and the usability. In addition, it is intended to promote the oxidation of the aerosol contents which are oxidized and exert their effects by good mixing with air, and to obtain excellent effects. Further, the injection nozzle for discharging the contents of the foamed aerosol is formed with a simple structure at low cost and without causing clogging.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an impingement wall for impinging the aerosol contents on a jet port of the aerosol contents and causing the aerosol contents to collide with air and foam. And the collision wall is provided in a retention chamber in which the foamed aerosol content temporarily stays, and an outlet for the foamed aerosol content is formed in the retention chamber.

[0006] The staying chamber may be formed with an air inlet on the side of the jet outlet from the collision wall.

[0007] The retention chamber may not have an opening for introducing outside air except for the outlet of the foamed aerosol content.

Further, the collision wall may be formed in a conical shape with respect to the direction of the ejection axis of the aerosol content ejected from the ejection port.

The collision wall may be formed in a tapered shape with respect to the direction of the ejection axis of the aerosol content ejected from the ejection port.

[0010]

Since the present invention is constructed as described above, in order to discharge the aerosol content and apply it to the portion to be coated, an appropriate push button, actuator or the like provided with the aerosol injection nozzle of the present invention is used. Operate the stem. Due to the pressing of the stem, the valve mechanism opens, and the aerosol content in the aerosol container flows out through the stem and is ejected from the ejection port of the ejection nozzle into the retention chamber.

The aerosol content ejected from the ejection port strongly collides with the collision wall in the retaining chamber, rebounds in the direction of the ejection port, and flows violently in the retaining chamber. With this flow,
The aerosol content mixes with the air present in the retention chamber and causes foaming. Then, the foamed aerosol content generated in the retaining chamber is discharged to the outside from the outlet. In this way, excellent foaming is produced by mixing well with air, so that the aerosol content is more adherent to the coated portion, preventing dripping and scattering into the air, Can be applied smoothly.

Conventionally, solidified aerosol contents and dust adhere to small-diameter openings of the mesh screen provided in the injection nozzle, and the injection nozzle is easily clogged. However, in the present invention, such a small opening is not provided, and the foamed aerosol content is discharged from a large-diameter outlet. Therefore, even if some aerosol content or dust adheres, clogging of the injection nozzle does not occur, and good release of the foamed aerosol content can be maintained. Further, according to the present invention, since a special member for foaming such as a mesh screen and labor for mounting are not required, the injection nozzle for aerosol can be manufactured at a low cost with a simple structure.

[0013] Further, aerosol contents, such as oxidative hair dyes, which exert their effects by oxidation can be satisfactorily oxidized by violently mixing with air in the retention chamber, and can exhibit excellent effects. Become. Also, instead of storing the pre-oxidized aerosol contents in the aerosol container,
Immediately before use, the mixture is oxidized by mixing with air in the retention chamber in the injection nozzle, so that the quality of the aerosol content is maintained and the use with excellent efficacy is possible.

Further, since the staying chamber communicates with the outside through the outlet, air always exists in the staying chamber. Therefore, even if the injection nozzle is manufactured without forming an opening for introducing outside air into the retention chamber other than the outlet, the mixing of the aerosol contents and air is performed favorably,
Aerosol contents can be foamed and oxidized.

However, depending on the type and purpose of use of the aerosol contents, by mixing with more air to increase the degree of foaming and oxidation, it is possible to exhibit excellent efficacy and usability of the aerosol contents. is there. In this case,
If the retention chamber forms an air inlet on the ejection port side from the collision wall, an eject phenomenon occurs due to the flow force when the aerosol contents are ejected from the ejection port into the retention chamber, and the retention chamber is moved from the air introduction port to the retention chamber. A lot of outside air is introduced continuously.
Then, the outside air and the aerosol content that bounces off after colliding with the collision wall are vigorously stirred and mixed in the retention chamber, so that good foaming and oxidation of the aerosol content are promoted, and the effectiveness of the aerosol content is enhanced. Can be enhanced.

The collision wall against which the aerosol content collides is formed in a conical or tapered shape with respect to the direction of the ejection axis of the aerosol content ejected from the ejection port.
The particles of the aerosol content that collided with the collision wall bounce off in an irregular direction and diffuse widely into the retention chamber, so that mixing and agitation with air are performed well, and excellent foaming containing many bubbles Becomes possible.

The aerosol container provided with the aerosol spray nozzle of the present invention includes hair supplies, cosmetics, deodorant / antiperspirants, other human body supplies, insecticides, cleaners, industrial supplies, automobile supplies, foods, etc. Thus, it can be used for aerosol contents that exert their effects by foaming and oxidation. And as hair products, hair treatments, hair shampoos and rinses, oxidized hair dyes, oxidized two-type permanent hair dyes, color sprays / bleaches, perm agents, hair restorers,
It can be used for hair tonics, hair fragrances, etc.

Also, as cosmetics, after shave lotion, perfume / cologne, face wash, sunscreen,
It can be used as a foundation, depilatory / bleaching agent, bath agent and the like.

The deodorant / antiperspirant can be used for antiperspirants, deodorants, body shampoos and the like. Also,
Other body products include muscle anti-inflammatory agents, skin disease agents,
It can be used as a drug for athlete's foot, pest repellent, wipe, oral freshener, oral dentifrice, wound medicine, burn remedy and the like.

As insecticides, cockroach insecticides,
It can be used for horticultural insecticides, acaricides, unpleasant insecticides and the like. As the cleaner, it can be used as a bath cleaner, floor / furniture polisher cleaner, shoe / leather cleaner, wax polisher and the like.

For industrial use, it can be used as a lubricating rust preventive, adhesive, metal flaw detector, mold release agent, caulking agent, and the like. Also, for automobiles, it can be used as an anti-fogging agent, deicing agent, engine cleaner and the like. In addition, it can be used for animal products, hobby and entertainment products, and foods such as coffee, juice, cream, cheese and the like.

The contents of the aerosol may be directly filled in a normal single aerosol container, or a double aerosol container may be used to fill an outer container with a compressed gas, and the inner container or inner bag may be used. The inside may be filled with an aerosol content. Further, two types of aerosol contents may be separately filled in an aerosol container or a double aerosol container having a partition at the center, and the aerosol container may be used by mixing in an injection nozzle at the time of discharge.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 and 2. (1) A push button is connected to a stem of a valve mechanism (not shown) provided in an aerosol container. The stem can be pressed by the push button (1). The push button (1) is provided with an ejection path (2) communicating with the stem, and an ejection nozzle for the aerosol content communicating with the ejection path (2).
(3) is provided on the side.

The spray nozzle (3) has a flow passage (4) for the aerosol content that has passed through the discharge passage (2), and a jet port for the aerosol content at the tip of the flow passage (4). (5) is provided. The spout (5) has a small inner diameter and is formed to be long, so that the aerosol content can be jetted from the spout (5). Further, the injection nozzle (3) is provided with a cylindrical mixing section (6) for mixing the aerosol contents and air and discharging the air to the outside, facing the injection port (5).

[0025] Inside the mixing section (6), a residence chamber (7) for temporarily retaining the contents of the foamed aerosol is provided so as to face the jet port (5). The aerosol contents can be ejected from the ejection port (5) into 7). In addition, the retaining chamber (7) has a conical collision wall (8) for colliding the aerosol contents with a conical concave wall surface to which the aerosol contents are ejected.

Further, the injection nozzle (3) is provided with an air inlet (10) capable of introducing outside air into the stagnation chamber (7) on the side closer to the injection port (5) than the collision wall (8). . This air inlet (10)
As shown in FIG. 2, the outer periphery of the mixing section (6) is formed by notching the outer periphery at two places so that a large amount of outside air can be introduced into the retaining chamber (7).

A cylindrical engaging cylinder (11) is mounted on the outer periphery of the mixing section (6). This engaging cylinder (11) is provided with an outlet (13) for discharging the foamed aerosol content to the outside at the tip, and is provided between the outer periphery of the mixing section (6) on the side of the collision wall (8). The inside diameter is formed large so as to interpose the circulation interval (12) of the aerosol contents. Also, the outlet
In (13), the inner diameter is formed large so that the contents of the foamed aerosol can be discharged to the outside in a thick band shape. Furthermore,
As shown in FIG. 1, the engagement cylinder (11) is formed by expanding the inner periphery of the air inlet (10) side in a tapered shape, thereby preventing the introduction of outside air from the air inlet (10). I try not to.

In order to make it possible to discharge the contents of the foamed aerosol from the outlet (13), a retaining chamber (7) is provided between the collision wall (8) and the jet port (5). A communication port (14) communicating with the circulation interval (12) of the combined cylinder (11) is provided in a direction intersecting the direction of the ejection axis of the aerosol content.
The communication port (14) enables communication between the retaining chamber (7) and the outlet (13), and allows the contents of the foamed aerosol in the retaining chamber (7) to be ejected from the outlet (13) to the outside.

In the above-described arrangement, to release the aerosol contents, the push button (1) is depressed to press the stem of the valve mechanism. By pressing the stem, the aerosol container and the spray nozzle (3) communicate with each other, and the contents of the aerosol in the aerosol container are ejected from the push button (1) by the ejection path.
It flows out to the flow path (4) of the injection nozzle (3) through (2).
Then, the aerosol contents in the flow passage (4) are jet-jetted from the small-diameter jet port (5) into the stagnation chamber (7). In addition, an eject phenomenon occurs due to the fluid force generated by the jet injection, and the residence chamber (7) has
As shown by the dotted arrow, outside air is introduced from the air inlet (10).

On the other hand, the aerosol content jetted from the jet port (5) is a conical collision wall disposed at the jet destination.
(8) Strong collision, bounces in random direction, stay room
(7) Fluid flows inside. Due to this flow, the aerosol content is sufficiently stirred and mixed with the air in the retention chamber (7), and a good foamed aerosol content containing a lot of air bubbles can be obtained. The contents of the foamed aerosol in the retaining chamber (7) flow out toward the outlet (13) through the communication port (14) and the circulation space (12), and are discharged from the outlet (13) to the outside. Will be done.

As described above, the aerosol contents which have been well mixed with air and which have been foamed well have an increased adherence to the portion to be coated, so that dripping and scattering into the air are prevented, and Application can be performed easily.

In addition, Japanese Patent Application Laid-Open No. 8-2294,
In No. 63, there was a problem that clogging was caused by aerosol contents and dust adhering to the small-diameter opening of the mesh screen. However, in the present invention, the injection nozzle (3)
Does not provide a small-diameter opening like a mesh screen, and forms a large-diameter outlet (13) for the foamed aerosol content. Therefore, even if the aerosol content or dust adheres to the ejection path to some extent, clogging does not occur, and good discharge of the foamed aerosol content can be repeatedly performed.

In addition, since the foam is generated by colliding the aerosol contents with the collision wall (8) and mixing it with air, a special member such as a mesh screen is required, and a high technology for production is required. An aerosol injection nozzle (3) having no need and having an excellent foaming effect can be formed at low cost by simple means.

Further, in the case of aerosol contents, such as an oxidative hair dye, which exerts its effect by being oxidized upon contact with air, oxidation is caused by mixing with the air in the retention chamber (7). Performed satisfactorily, it shows excellent efficacy as a hair dye. In addition, instead of previously causing oxidation in the aerosol container, the injection nozzle (3) is used immediately before use.
Since it is mixed with air in the retention chamber (7) and oxidized, the quality of the aerosol contents is maintained, and good use is always possible.

In the first embodiment, an engagement cylinder (11) provided with an outflow port (13) is attached to the outer periphery of the mixing section (6), and the communication port (14) is connected to the mixing section (6). ) To allow the contents of the foamed aerosol in the retention chamber (7) to flow out
It can be released from (13) to the outside. On the contrary,
In another different second embodiment, as shown in FIGS. 3 and 4, in the mixing section (6), the lower part of the collision wall (8) is opened and the outlet is opened.
By forming (13), the number of members of the injection nozzle (3) can be reduced and the structure can be simplified.

Further, in the first embodiment, the air inlet (10)
Are opened at two locations above and below the mixing section (6), but in the second embodiment, they are opened at only one location on the opposite side of the outlet (13). In the first embodiment, the collision wall (8) is formed in a conical shape so that the contents of the aerosol can be stored in the retaining chamber.
In the second embodiment, the collision wall (8) is formed in a tapered shape so that the contents of the aerosol can be reflected obliquely upward in the second embodiment.

In the injection nozzle (3) of the second embodiment formed as described above, the aerosol contents jetted from the injection port (5) into the retaining chamber (7) are subjected to the tapered collision wall (8).
Then, as shown by the solid line arrow in FIG. 3, it bounces upward at random and flows vigorously through the inside of the staying chamber (7). Further, since the air inlet (10) is provided in the flow direction of the aerosol contents, the air inlet (1) is provided.
The air introduced from 0) mixes violently with the aerosol contents and foaming occurs. The contents of the foamed aerosol in the retaining chamber (7) are supplied to an outlet provided below the mixing section (6).
(13) is released to the outside.

Thus, the injection nozzle (3) of the second embodiment is described.
Since the number of members is smaller than that of the first embodiment and the structure is simple, it can be formed at low cost. However, in the first embodiment, since the outlet (13) is formed large at the center of the tip of the injection nozzle (3), the foamed aerosol content is discharged in the axial direction, and the discharge direction can be easily specified. In addition, it is possible to perform quick application to a portion to be applied. On the other hand, in the second embodiment,
Since the outflow port (13) is formed below the injection nozzle (3), the foamed aerosol content is discharged in a downward direction, and it may be difficult to identify the portion to be coated.

In the first and second embodiments, the injection nozzle (3) is provided with an air inlet for introducing outside air into the retaining chamber (7).
(10) is provided, but in another different third embodiment, as shown in FIG. 5, the injection nozzle is provided without providing the air inlet (10).
(3) is formed. Even if the air inlet (10) is not specially provided, the retaining chamber (7) communicates with the outside through the outlet (13), so that the retaining chamber (7) is filled with air. ing.

Therefore, the aerosol contents can be foamed by utilizing the air in the retaining chamber (7). After the contents of the foamed aerosol in the retention chamber (7) pass through the communication port (14) and the circulation interval (12), the outflow port (1)
It is released outside through 3). After this release,
Air is newly introduced into the stagnation chamber (7) through the outlet (13) to prepare for the next release of the aerosol contents.

As described above, the air inlet is provided at the injection nozzle (3).
The air flowing from the outlet (13) can be used to foam and oxidize the contents of the aerosol without specially providing the (10), and the injection nozzle (3) can be manufactured simply and inexpensively. . However, it is better to provide the air inlet (10)
A lot of outside air can be introduced into the retention chamber (7) and the outlet (13)
Air can be continuously introduced even when the foamed aerosol content is ejected from the outside. As a result, the residence room (7)
The aerosol content flowing through the inside takes in a lot of air, so that a light touch foamed aerosol content containing many fine bubbles can be obtained. Also, the oxidation-type aerosol contents are oxidized favorably and exhibit excellent efficacy.

A prescription example in the case where a hair foam is filled as an aerosol content in an aerosol container provided with the above-mentioned spray nozzle (3) is shown below.

Hair foam Acrylic resin alkanolamine liquid (50%) 7.5 wt% Polyoxyethylene hydrogenated castor oil 0.5 wt% Liquid paraffin 5.0 wt% Glycerin 3.0 wt% Methylparaben 0.1 wt% Purified water 73.2 wt% ethyl alcohol 10.0wt% N ₂ 0.7wt% Total 100.0Wt%

[0044]

Since the present invention is constructed as described above, it is possible to foam the contents of the aerosol satisfactorily, to prevent liquid dripping and scattering, and to improve the adhesion to the part to be coated. Can be done. In the case of an aerosol content that exhibits an effect by being oxidized, the oxidation is promoted by good mixing with air, and it is possible to exhibit an excellent effect. Further, the aerosol injection nozzle capable of excellent foaming and oxidation of the aerosol contents can be formed at a low cost with a simple structure without requiring any special member or advanced technology. In addition, it is possible to prevent clogging of the outlet of the foamed aerosol content, and to repeatedly perform good discharge of the foamed aerosol content.

[Brief description of the drawings]

FIG. 1 is a sectional view of an injection nozzle according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view of an injection nozzle according to a second embodiment.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a sectional view of an injection nozzle according to a third embodiment.

[Explanation of symbols]

 5 Outlet 7 Retention chamber 8 Collision wall 10 Air inlet 13 Outlet

Claims (5)

[Claims] Claims 1. A jet nozzle for aerosol contents,
A collision wall is provided for the aerosol content to collide, mix with air and foam, and the collision wall is provided in a retention chamber where the foamed aerosol content temporarily stays. An injection nozzle for aerosol, wherein an outlet for the contents is formed. 2. The aerosol injection nozzle according to claim 1, wherein the stagnant chamber has an air introduction port formed closer to the injection port than the collision wall. 3. The aerosol injection nozzle according to claim 1, wherein the retaining chamber has no opening other than the outlet of the foamed aerosol content for introducing outside air. 4. The aerosol injection nozzle according to claim 1, wherein the collision wall is formed in a conical shape with respect to the ejection axis direction of the aerosol content ejected from the ejection port. 5. The aerosol injection nozzle according to claim 1, wherein the collision wall is formed in a tapered shape with respect to the direction of the ejection axis of the aerosol content ejected from the ejection port.