JP2010274949A - Spray device of aerosol content - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress an aerosol content from spreading into the atmosphere to increase a sticking rate of the aerosol content, improve a spraying efficiency, and prevent sucking the aerosol content, and, further, to suppress the spraying pressure when spraying the aerosol content to prevent a user from feeling pain or excessive coldness, improve usability of an aerosol product, and suppress a spraying sound leaking outside when spraying the aerosol content. <P>SOLUTION: The device includes a communicating passage 5 for communicating with a stem of an aerosol container, a hit wall 13 arranged via a spraying interval 12 from a tip end part 11 of the communicating passage 5 and for being hit by the aerosol content discharged from the tip end part 11 of the communicating passage 5, and an ejection passage 14 for connecting the spraying interval 12 with the outside, arranged on a different axis line from the communication passage 5 to open into the hit wall 13. The ejection passage 14 has a diameter of 0.1 to 3.0 mm and a length of 0.2 to 20.0 mm, and can eject the aerosol content hit to the hit wall 13 to the outside via the ejection passage 14. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an aerosol content injection device for injecting an antiperspirant, hair products, cosmetics, deodorant, wound medicine and other aerosol contents filled in an aerosol container, and in particular, a powder aerosol content It is suitable as an injection device.

Conventionally, an apparatus as shown in Patent Document 1 is known as a device for injecting an aerosol content filled in an aerosol container. In this prior art, a communication path connected to the stem of the aerosol container, a protrusion disposed at the tip of the communication path via an injection interval, and a plurality of injection holes connecting the injection interval and the outside. I have. And after making the aerosol content introduced into the said communicating path from the aerosol container collide with the said projection part, it can be inject | emitted outside through the said several injection hole. In this conventional technique, the aerosol content is collided with the protrusions as described above, thereby reducing the particle size of the aerosol content and attempting to spray it over a wide range and uniformly.

JP 2003-31192 A

However, in the apparatus shown in Patent Document 1, the aerosol content that has been made finer by colliding with the protrusions diffuses widely into the atmosphere through a plurality of injection holes. It has been difficult to efficiently attach the aerosol contents to a narrow adhesion target portion such as a part of the human body. In addition, as described above, the aerosol content diffuses widely in the atmosphere through the plurality of injection holes, and thus the user has a drawback that the diffused aerosol content is easily sucked by the user.

Accordingly, the present invention is intended to solve the above-described problems, and by suppressing the diffusion of the aerosol contents into the atmosphere, the aerosol contents can be efficiently applied to a narrow adhesion target portion such as a part of the human body. It is intended to prevent the user from inhaling aerosol contents. Furthermore, by suppressing the injection pressure when injecting the aerosol contents, the user is prevented from feeling pain and a cold feeling of strength, improving the usability of the aerosol product and injecting the aerosol contents. It is intended to suppress the injection sound that leaks to the outside.

In order to solve the above-described problems, the present invention provides a communication passage communicating with the stem of the aerosol container, and an aerosol content disposed through the tip of the communication passage and the injection interval and discharged from the tip of the communication passage. A collision wall to be collided is connected to the injection interval and the outside, and the communication path is arranged so as not to be on the same axis line, and is provided with one ejection path opened to the collision wall. 0.1 mm to 3.0 mm and length 0.2 mm to 20.0 mm. And the aerosol content collided with the collision wall can be ejected to the outside through the ejection path.

Further, a plurality of communication paths may be provided. By providing a plurality of communication passages in this way, even if one of the plurality of communication passages is clogged, the aerosol content is injected through another communication passage that is not clogged. It becomes possible to introduce it within the interval, and it is possible to prevent the state in which the aerosol contents cannot be jetted. In particular, when powder content is used as the aerosol content, aerosol content is more likely to accumulate in the communication path than when using water content or non-aqueous content such as alcohol or kerosene. Therefore, clogging in the communication path is likely to occur. Therefore, it is preferable to form a plurality of communication passages so that even if one communication passage is clogged, the aerosol contents can be reliably transferred in the injection direction via the other communication passage.

Further, only one communication path may be provided. By forming in this way, the manufacturing process can be simplified as compared with the case where a plurality of communication passages are formed, and the flow rate of the aerosol contents flowing into the communication passages is suppressed. This makes it possible to increase the effect of suppressing the injection pressure.

Further, the injection interval may be arranged on the same plane as the lower end edge of the ejection path having the lower end edge provided at the lowermost end. By forming in this way, it becomes possible to make the flow of the aerosol contents from the injection interval to the ejection path smooth, and when the lower end edge of the injection interval is arranged at a position lower than the lower end edge of the ejection path In comparison with the above, the aerosol contents are less likely to accumulate at the lower end edge of the injection interval, and the aerosol contents can be efficiently injected without waste. In addition, it is possible to prevent clogging within the injection interval, and it is possible to improve the usability of the aerosol product without causing the aerosol contents to be solidified and injected. . In particular, when powder-based contents are used as the aerosol contents, the aerosol contents are likely to be deposited as described above. Therefore, by setting the lower end edge of the ejection path and the lower end edge of the injection interval to the same plane. It is preferable to suppress deposition of aerosol contents. In the claims and the present specification, terms indicating the positions of the upper end, the lower end, etc. are used based on the upright state of the aerosol container.

The injection interval may be one in which the lower end edge is arranged at a position lower than the lower end edge of the ejection path. By forming in this way, it becomes possible to increase the formation height of the injection interval compared to the case where the lower end edge of the injection interval is arranged in the same plane as the lower end edge of the ejection path. Therefore, the volume of the injection interval becomes large, and within this large injection interval, the particle diameter of the aerosol contents colliding with the collision wall can be surely reduced.

The aerosol content may be a powder content.

The present invention is configured as described above, and the aerosol content discharged from the tip of the communication passage collides against the collision wall through the injection interval, thereby pulverizing the aerosol content into fine particles. It becomes possible to evaporate and expand in the apparatus, and to suppress the injection pressure of the aerosol contents. Therefore, it is possible to improve the usability of the aerosol product without causing the user to feel pain or a strong cold feeling due to excessive jet pressure. In addition, by evaporating and expanding the aerosol contents in the apparatus as described above, it is possible to reduce the sound of the jet that leaks to the outside. For example, when using antiperspirants, deodorants, etc. Even when the user does not want to hear the injection sound, the user can use it comfortably without worrying about leakage of the injection sound to the outside. Moreover, even when an aerosol product is used for pets, infants, and the like, there is no fear of giving a fear of spraying sound.

In addition, since the ejection path for ejecting the aerosol contents to the outside is arranged so as not to be on the same axis as the communication path, the aerosol contents flowing out from the communication path do not collide with the collision wall. The aerosol content can be reliably collided with the collision wall without being ejected from the ejection path to the outside, and the aerosol pressure can be surely suppressed by atomization and vaporization expansion of the aerosol content. It becomes possible to do.

Further, as described above, the aerosol content which is made to collide with the collision wall to reduce the particle diameter and suppress the injection pressure has a diameter of 0.1 mm to 3.0 mm and a length of 0.2 mm to 20.0 mm opened in the collision wall. In this case, the spray pattern of the aerosol contents can be narrowed in the ejection path. Therefore, even if the particle size of the aerosol content to be ejected is fine, the diffusion of the aerosol content into the atmosphere is suppressed, and the aerosol content for the human body such as antiperspirant is part of the human body. It is possible to adhere only to a narrow adhesion target portion such as, and the adhesion rate can be increased. Further, by suppressing the diffusion of the aerosol contents into the atmosphere, there is no possibility that the user will inhale the aerosol contents, and the aerosol product can be used safely.

Sectional drawing which shows Example 1. FIG. The partial expanded sectional view of the AA line part of FIG. The partial expanded sectional view of the BB line part of FIG. Sectional drawing which shows Example 2. FIG. The elements on larger scale of the CC line part of FIG. The elements on larger scale of the DD line part of FIG. FIG. 9 is a partial cross-sectional view illustrating a communication path of Example 3.

Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. (1) is a push button, and communicates with a stem (not shown) of an aerosol container (not shown) in the vertical direction at the center of the interior. An introduction path (2) is provided. And by pressing the pressing part (3) provided at the upper end of the push button (1), the stem is pushed down via the push button (1) to open the valve mechanism (not shown) of the aerosol container, The aerosol contents can be introduced into the introduction path (2).

Further, in the direction perpendicular to the introduction path (2), a communication path (5) connecting the introduction path (2) and the base end (4) as shown in FIG. 1 is formed as shown in FIGS. Four are provided at equal intervals on the outer periphery of the center post (6). The formation of the communication path (5) will be described. As shown in FIG. 1, the push button (1) is provided with a side opening (7) from one side of the outer peripheral surface toward the introduction path (2). The center post (6) is disposed in the side opening (7). Four communication grooves (9) are recessed in the axial direction on the outer peripheral surface of the center post (6). Further, as shown in FIG. 1, the base end side of the nozzle body (8) can be attached and fixed to the side opening (7). And by covering the four communication grooves (9) provided on the outer peripheral surface of the center post (6) as shown in FIGS. 1 and 2 with the inner peripheral surface (10) of the nozzle body (8), Four communication paths (5) are formed.

Moreover, it is preferable that the said communicating path (5) shall be 0.3 mm-2.0 mm in diameter. When the diameter of the communication path (5) is less than 0.3 mm, the aerosol contents are likely to be clogged in the communication path (5). Further, if the diameter of the communication path (5) is larger than 2.0 mm, the flow rate of the aerosol content in the communication path (5) becomes excessive, and the effect of suppressing the injection pressure is insufficient. It becomes.

In the present embodiment, as described above, four communication paths (5) are formed on the upper, lower, left and right sides of the outer peripheral surface of the center post (6). By forming a plurality of communication passages (5) in this way, even if one of the plurality of communication passages (5) is clogged, other communication passages that are not clogged ( Through 5), it becomes possible to transfer the aerosol contents in the injection direction, and it is possible to prevent the inability to inject the aerosol contents. In particular, when powder-based contents are used as the aerosol contents, the aerosol contents are deposited in the communication passage (5) as compared with the case where non-aqueous contents such as water-based contents and alcohol or kerosene are used. It becomes easy to be clogged in the communication path (5). Therefore, a plurality of communication passages (5) are formed, and even if one communication passage (5) is clogged, the aerosol contents can be reliably transferred in the injection direction via the other communication passage (5). It is preferable to keep it.

In this embodiment, as shown in FIG. 2, the cross-sectional shape of the communication path (5) is substantially square. In this embodiment, the cross-sectional shape of the communication path (5) is substantially square as described above. However, in other different embodiments, an arbitrary shape such as a triangle, a rectangle, a regular circle, or an ellipse is used. It is possible to adopt a cross-sectional shape of

Moreover, as shown in FIG. 1, the collision wall (13) is arrange | positioned through the injection | emission space | interval (12) with the front-end | tip part (11) of the said communicating path (5). The collision wall (13) is provided on the inner surface of the nozzle body (8). With the nozzle body (8) attached to the side opening (7), the tip of the communication path (5) Is formed by adjusting the dimensions so as to be arranged via the injection interval (12).

In the present invention, since the collision wall (13) is arranged via the tip end portion (11) of the communication passage (5) and the injection interval (12) in this way, the tip end portion of the communication passage (5). The aerosol contents discharged from (11) can collide with the collision wall (13) via the injection interval (12). Therefore, the aerosol content can be pulverized into fine particles by collision and vaporized and expanded in the apparatus, thereby suppressing the injection pressure. Therefore, it is possible to improve the usability of the aerosol product without causing the user to feel pain or a strong cold feeling due to excessive jet pressure.

In addition, as described above, the aerosol contents are vaporized and expanded in the device and then sprayed to the outside, so that it is possible to reduce the jetting sound leaking to the outside. For example, antiperspirants and deodorants are used. In such a case, even if it is not desired to hear the injection sound outside, it is possible to use it comfortably without worrying about leakage of the injection sound to the outside. Moreover, even when an aerosol product is used for pets, infants, and the like, there is no fear of giving a fear of spraying sound.

In addition, the injection interval (12) preferably has a formation width of 1.0 mm to 3.0 mm and a formation height of 1.0 mm to 5.0 mm. When the formation width of the injection interval (12) is less than 1.0 mm or when the formation height of the injection interval (12) is less than 1.0 mm, it collides with the collision wall (13) and is pulverized into fine particles. The space for vaporizing and expanding the aerosol contents is too narrow. For this reason, the effect of suppressing the injection pressure becomes insufficient, and the user may feel pain and a feeling of coldness due to excessive injection pressure, and the injection sound leaking outside may be increased. In addition, when the width of the injection interval (12) exceeds 3.0 mm or when the formation height of the injection interval (12) exceeds 5.0 mm, the collision wall (13 ) Is too far away, the amount of aerosol content that vaporizes and expands within the spray interval (12) becomes too large, and the spray pressure becomes too small. Therefore, a large amount of aerosol contents remain within the spray interval (12), and there is a possibility that a sufficient amount of aerosol contents cannot be sprayed. Further, the residual powder in the injection interval (12) is likely to be clogged in the communication path (5) and the ejection path (14) arranged on the collision wall (13) as described later.

Further, as described above, the aerosol content which has been collided with the collision wall (13) of the nozzle body (8) to reduce the particle size is usually diffused in the atmosphere as compared with the aerosol content having a large particle size. It will be easy to do. When such aerosol contents diffuse into the atmosphere, it becomes difficult to attach the aerosol contents to a narrow adhesion target part such as a part of the human body, and the adhesion rate of the aerosol contents decreases. It will be something to do. Further, as described above, there is a possibility that the user may inhale the fine aerosol content having a particle size diffused in the atmosphere.

Therefore, in the present invention, an ejection path (14) having a diameter of 0.1 mm to 3.0 mm and a length of 0.2 mm to 20.0 mm is formed in the collision wall (13) of the nozzle body (8) in FIG. The aerosol content is opened as shown, and is made to collide with the collision wall (13) as described above, and the particle size is reduced to be ejected to the outside through the ejection path (14). Thus, by injecting the aerosol contents to the outside through the ejection path (14) having a diameter of 0.1 mm to 3.0 mm and a length of 0.2 mm to 20.0 mm, the ejection path (14) It becomes possible to narrow the spray pattern of the aerosol contents. Therefore, even if the particle size of the aerosol content to be ejected is fine, the diffusion of the aerosol content into the atmosphere is suppressed, and the aerosol content for the human body such as antiperspirant is part of the human body. It is possible to adhere only to a narrow adhesion target portion such as, and the adhesion rate can be increased. Moreover, by suppressing the diffusion of the aerosol contents into the atmosphere, the user is less likely to inhale the aerosol contents, and the aerosol product can be used safely.

Moreover, the said ejection path (14) is formed so that it may not be on the same axis line as the said communicating path (5), as shown in FIG.1 and FIG.3. By forming in this way, the aerosol content that has flowed out of the communication path (5) does not collide with the collision wall (13) and is not ejected to the outside from the ejection path (14), and the collision wall (13 ), The aerosol contents can be reliably collided, and the above-described spraying pressure can be reliably suppressed by atomization and vaporization expansion of the aerosol contents.

Further, as described above, the ejection path (14) has a diameter of 0.1 mm to 3.0 mm and a length of 0.2 mm to 20.0 mm. If the diameter of the ejection path (14) is larger than 3.0 mm or the length of the ejection path (14) is less than 0.2 mm, the spray pattern of the aerosol contents cannot be made sufficiently narrow, and the aerosol contents Things are likely to diffuse into the atmosphere. Therefore, it is difficult to efficiently attach the aerosol contents to a narrow adhesion target portion such as a part of the human body, and the user is more likely to inhale the aerosol contents diffused into the atmosphere. In addition, if the diameter of the ejection path (14) is less than 0.1 mm or the length of the ejection path (14) is greater than 20.0 mm, the ejection pattern becomes too small. It adheres as a droplet. As a result, the latent heat of vaporization due to the aerosol content becomes excessive, the cooling feeling becomes too strong, and the feeling of use may be deteriorated.

Further, in this embodiment, as shown in FIGS. 1 and 3, the lower end edge (15) of the injection interval (12) is arranged at a position lower than the lower end edge (16) of the ejection passage (14). Yes. By forming in this way, compared with the case where the lower end edge (15) of the injection interval (12) is arranged in the same plane as the lower end edge (16) of the ejection passage (14), the formation of the injection interval (12) is formed. It becomes possible to increase the height. Therefore, the volume of the injection interval (12) also becomes large, and within this large injection interval (12), it becomes possible to reliably reduce the particle diameter of the aerosol contents that collided with the collision wall (13). .

In the first embodiment, as shown in FIGS. 1 and 3, the lower end edge (15) of the injection interval (12) is formed at a position lower than the lower end edge (16) of the ejection passage (14). However, in the second embodiment, as shown in FIGS. 4 and 6, the lower end edge (15) of the injection interval (12) is flush with the lower end edge (16) of the ejection path (14). Forming. By forming in this way, it becomes possible to make the flow of the aerosol contents from the injection interval (12) to the injection passage (14) smooth, and the lower end of the injection interval (12) as in the first embodiment. Compared with the case where the edge (15) is disposed at a position lower than the lower end edge (16) of the ejection path (14), the aerosol content is less likely to accumulate on the lower end edge (15) of the injection interval (12). The aerosol contents can be efficiently ejected without waste. In addition, it is possible to prevent clogging in the injection interval (12), and it is possible to improve the usability of the aerosol product without causing the aerosol contents to be solidified and injected. . In particular, when a powder-based content is used as the aerosol content, the deposition of the aerosol content is likely to occur as described above. Therefore, it is preferable to adopt the configuration as in this embodiment.

In the first embodiment, as shown in FIG. 2, four communication passages (5) are formed, one on each of the upper, lower, left and right sides of the outer peripheral surface of the center post (6). As shown in FIG. 5, three communication passages (5) are formed, one on each of the upper and left sides of the outer peripheral surface of the center post (6). As shown in FIG. 7, only one communication path (5) is formed in the upper part of the center post (6). By forming only one communication path (5) in this way, the manufacturing process can be simplified as compared to the case of forming a plurality of communication paths (5), and the communication path (5) It is possible to suppress the flow rate of the aerosol contents flowing into the inside, and it is possible to enhance the effect of suppressing the injection pressure.

The aerosol content injection device of the present invention includes, for example, powder spray (antiperspirant), hair set spray, hair treatment spray, hair color spray, hair polish spray, hair tonic, fragrance spray, sunscreen spray, makeup It can be used for water, body lotion, nail remover, cold spray, body spray, muscle anti-inflammatory agent, athlete's foot, wound, anti-fogging agent, antibacterial / deodorant, glass cleaner, antistatic agent and the like. In addition, since the aerosol content injection device of the present invention can reliably reduce the particle size of the aerosol content as described above, it is preferable that the aerosol content is injected with a reduced particle size. As a powder solvent injection device, it is suitable.

And using the aerosol content injection device of the present invention and the aerosol content injection device of the conventional example, the effect of improving the adhesion rate of the aerosol content, the effect of preventing the expansion of the spray pattern, the effect of suppressing the injection pressure, the suppression of the injection sound A comparative experiment was conducted to verify the effect and the effect of reducing the particle size. Table 1 shows the main specifications of the aerosol content injection device of the present invention and the conventional example.

In this experiment, an aerosol content injection device having a shape corresponding to those of Examples 1 to 3 was used as an example of the present invention. That is, as Example 1, an aerosol content injection device provided with a total of four communication paths (5) on the top, bottom, left and right of the outer peripheral surface of the center post (6) was used. In addition, as Example 2 of the present invention, an aerosol content injection device provided with a total of three communication passages (5) on the top and left and right of the outer peripheral surface of the center post (6) was used. Further, as Example 3, an aerosol content injection device in which only one communication path (5) was provided on the upper part of the center post (6) was used.

Further, in this experiment, conventionally known aerosol content injection devices having no communication path, collision wall, and injection interval were used as Comparative Examples 1 and 2. That is, as Comparative Example 1, an aerosol content injection device provided with only a nozzle having a diameter of 0.5 mm and a length of 0.5 mm was used. As Comparative Example 2, a tapered jet having a diameter of 1.0 mm at the base end, a diameter of 1.5 mm at the tip and a length of 4.5 mm is applied to the tip of a nozzle having a diameter of 0.5 mm and a length of 1.0 mm. An aerosol content injection device with a passage was used.

A method for measuring the adhesion rate in this experiment will be described below. First, the aerosol content injection device of the example and the comparative example is attached to the aerosol container main body, and a measurement panel formed by a 30 cm × 30 cm square filter paper is disposed at a distance of 15 cm from the aerosol container main body. . Then, the aerosol contents are jetted from the aerosol contents jetting device for 10 seconds toward the measurement panel. A value obtained by dividing the weight of the aerosol contents adhering to the measurement panel 60 seconds after the completion of the injection by the total weight of the injected aerosol contents (excluding the propellant) is 100 minutes. What was shown was evaluated as the adhesion rate.

A method for measuring the effect of preventing the spread of the spray pattern in this experiment will be described below. First, the aerosol content injection devices of Examples and Comparative Examples were connected to an aerosol container, and an acrylic plate was installed at a position 15 cm away from the aerosol container. And immediately after injecting the aerosol content from the aerosol content injection device for 3 seconds toward the acrylic plate, the vertical width and the horizontal width of the aerosol content attached to the acrylic plate were measured.

A method for measuring the injection pressure in this experiment will be described below. First, the aerosol content injection devices of the example and the comparative example are connected to the aerosol container, and a measurement panel made of a disc-shaped stainless steel plate having a diameter of 15 cm is disposed at a distance of 15 cm from the aerosol container. In this state, the aerosol content is sprayed from the aerosol content spray device for 5 seconds toward the measurement panel. Then, the load applied to the measurement panel was measured by a strain gauge type load transducer (T25 manufactured by Tohoku Shiki Kogyo Co., Ltd.) connected to the measurement panel, and the maximum value was evaluated as the injection pressure.

In addition, a method for measuring the injection sound in this experiment will be described below. An ordinary noise meter (Ono Keiki Co., Ltd.) in which the aerosol contents were sprayed for 5 seconds with the aerosol contents injecting device of the example and the comparative example attached to the aerosol container, and placed at a distance of 15 cm from the aerosol container body The maximum value of the sound pressure level measured by the sound detection unit (manufactured by LA-215) was evaluated as the sound pressure level of the injection sound.

In addition, the measurement of the average particle size in this experiment is based on JIS Z8825-1 (particle size analysis-laser diffraction method) using a laser diffraction type particle size distribution measuring apparatus (Sysmec Corp., spray tech RTS500). went.

In any of the above experiments, as shown in Table 1, each comparative example and example was tested three times, and the average value was shown in the lower column of the three experimental results. Hereinafter, description will be made based on this average value.

As apparent from the results in Table 1, first, in terms of the adhesion rate, Examples 1 to 3 of the present invention are all significantly higher than Comparative Example 1 and Comparative Example 2. Thus, since the aerosol content injection device of the present invention has a higher adhesion rate of the aerosol content than the aerosol content injection devices of Comparative Example 1 and Comparative Example 2, it is suitable for human bodies such as antiperspirants. The aerosol contents can be attached only to a narrow attachment target part such as a part of a human body. In addition, the user is less likely to inhale the aerosol contents, and the aerosol product can be used safely.

Moreover, in the experiment of the spray pattern expansion preventing effect, the spray patterns of Comparative Examples 1 and 2 are both 30 mm × 30 mm, whereas in Examples 1 and 2, both are 25 mm × 25 mm, 20 mm × 20 mm in the third embodiment, and the spray pattern is narrower in the first to third embodiments than in the first and second comparative examples. Also from this experimental result, it is clear that the aerosol content injection devices of Examples 1 to 3 have higher aerosol content adhesion rate and diffusion suppressing effect than the aerosol content injection devices of Comparative Examples 1 and 2. is there.

In addition, as can be seen from the experimental results in Table 1, the ejection sound of Examples 1 to 3 of the present invention is smaller than those of Comparative Example 1 and Comparative Example 2. Therefore, the aerosol content injection device of this example is superior in the usability of the aerosol product as compared with the aerosol content injection devices of Comparative Examples 1 and 2.

Further, as can be seen from the experimental results of Table 1, the injection pressure of Example 3 of the present invention in which only one communication path (5) is formed is much lower than Comparative Examples 1 and 2. ing. Further, in Example 1 of the present invention in which four communication passages (5) are formed and in Example 2 of the present invention in which three communication passages (5) are formed, the injection pressure is lower than that of Comparative Example 1. It has become. As is clear from this, the aerosol content injection device of the present invention can improve the feeling of use of the aerosol product without fear of the user feeling pain or a strong cold feeling due to excessive injection pressure. Is.

In addition, about Example 1, 2 of this invention, compared with the comparative example 2, the injection pressure is high. This is because the spray patterns of Examples 1 and 2 of the present invention have a narrower spray pattern than Comparative Example 2, and the aerosol content is less diffused accordingly, and the aerosol content is intensively sprayed to the adhesion target portion. This is thought to be due to the fact that However, the injection pressures of Examples 1 and 2 are less than 5.0 gf as in Comparative Example 2, and the user does not feel pain or a strong cold feeling. In Examples 1 and 2, the adhesion rate of the aerosol contents is much improved as compared with Comparative Examples 1 and 2 because the diffusion of the aerosol contents is small as described above.

Moreover, about the average particle diameter of the aerosol content, as can be seen from the experimental results in Table 1, all of Examples 1 to 3 of the present invention are between 20.0 μm and 25.0 μm. On the other hand, in Comparative Example 1, the average particle diameter is 11.3 μm, and the average particle diameter is less than 15.0 μm. Therefore, the average particle size becomes too small, the aerosol content may diffuse into the atmosphere, and the risk that the user may inhale the aerosol content may increase. In Comparative Example 2, the average particle diameter is 33.6 μm, and the average particle diameter exceeds 30.0 μm. Therefore, the average particle diameter becomes too large, and the aerosol contents become droplets and adhere to the adhesion target portion, and the user may feel an excessive feeling of cooling due to the latent heat of vaporization at that time.

5 passages
11 Tip
12 Injection interval
13 Collision wall
14 Outlet 15 Lower edge 16 Lower edge

Claims (6)

The communication path that communicates with the stem of the aerosol container, the tip of the communication path and the impact wall that collides with the aerosol content discharged from the tip of the communication path that is disposed through the injection distance, and the injection interval are connected to the outside In addition, the communication passage is arranged so as not to be on the same axis as the communication passage, and is provided with a single ejection passage opened in the collision wall. The ejection passage has a diameter of 0.1 mm to 3.0 mm and a length of 0.2 mm to An aerosol content injection device characterized in that the aerosol content, which is 20.0 mm, can be ejected to the outside through an ejection path. The aerosol content injection device according to claim 1, wherein a plurality of communication paths are provided. The aerosol content injection device according to claim 1, wherein only one communication path is provided. 2. The aerosol content injection device according to claim 1, wherein the injection interval is arranged in the same plane as the lower end edge of the ejection path having the lower end edge provided at the lowermost end. The aerosol content injection device according to claim 1, wherein a lower end portion of the injection interval is arranged at a position lower than a lower end edge of the discharge passage. The aerosol content injection device according to claim 1, wherein the aerosol content is a powder-based content.

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