JP4157978B2 - Aerosol delayed jetting device - Google Patents

Aerosol delayed jetting device Download PDF

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Publication number
JP4157978B2
JP4157978B2 JP10131098A JP10131098A JP4157978B2 JP 4157978 B2 JP4157978 B2 JP 4157978B2 JP 10131098 A JP10131098 A JP 10131098A JP 10131098 A JP10131098 A JP 10131098A JP 4157978 B2 JP4157978 B2 JP 4157978B2
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Japan
Prior art keywords
aerosol
injection
injection device
delayed
penetration
Prior art date
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Expired - Fee Related
Application number
JP10131098A
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Japanese (ja)
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JPH11290729A (en
Inventor
隆啓 長谷川
務 根岸
之哉 久保
周作 堤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Aerosol Industry Co Ltd
Earth Chemical Co Ltd
Original Assignee
Toyo Aerosol Industry Co Ltd
Earth Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP10131098A priority Critical patent/JP4157978B2/en
Publication of JPH11290729A publication Critical patent/JPH11290729A/en
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Description

【0001】
【発明の属する技術分野】
この発明は、エアゾールを一定時間遅延させて噴射するためのエアゾール用遅延噴射装置に関するものである。
【0002】
【従来の技術】
通常、エアゾール噴射装置からのエアゾールの噴射は、その噴射操作と同時に行われるものであるが、全量噴射型のエアゾール噴射装置の場合は、噴射操作をした者へのエアゾール内容物の付着や吸入を防ぐため、噴射操作後しばらくは噴射がされず、一定時間経過後にエアゾールが噴射される構造が望まれていた。このようなエアゾールの遅延噴射構造を備えたエアゾール噴射装置には、特公平8−29792号公報や特公平5−61975号公報に記載されたものなどが知られている。
【0003】
特公平8−29792号公報に記載されたものは、密閉状容器の内部に高粘度液体が充填されており、この容器にエアゾール噴射装置からの加圧状態にあるエアゾール内容物を導入する導入孔と高粘度液体を流出させる流出孔とが形成されており、この導入孔から導入されるエアゾール内容物によって密閉状容器内の高粘度液体を流出孔から流出させ、引き続いてエアゾール内容物を流出孔から噴出させるようにしている。
【0004】
特公平5−61975号公報に記載されたものは、エアゾール噴射装置のステムの外方にエアゾール内容物の導入室を設け、この導入室とノズル間に制御通路を形成し、この制御通路を噴射遅延用の遅延物で常時は閉止するとともに導入室へのエアゾール内容物の導入に伴う一定以上の昇圧によって、遅延物による制御通路の閉止を開放するものとしている。
【0005】
【発明が解決しようとする課題】
しかしながら、特公平8−29792号公報に記載されたものでは、前記したような導入孔及び流出孔を形成した密閉状容器をエアゾール噴射装置に備えたものとしなければならず、そのため構成要素が増えて、エアゾール噴射装置が複雑になると共に、嵩が高くなるという課題を有していた。
【0006】
さらに、特公平5−61975号公報に記載されたものでも、前記したような導入室及び制御通路をエアゾール噴射装置のステムの外方に設けなければならず、そのためエアゾール噴射装置が複雑になると共に、嵩が高くなるという課題を有していた。
【0007】
そこで、この発明は、上記従来の課題を解決するためになされたものであり、エアゾール噴射装置に特別な構造を必要としないで、内容物流路内に保持させることができて、非常に使用し易いものとなり、しかも特殊な組成物を調合したものとすることなく、低コストで製造することのできるエアゾール遅延噴射装置を提供することを目的としてなされたものである。
【0008】
【課題を解決するための手段】
そのため、この発明のエアゾール用遅延噴射装置は、噴射孔の径が0.2〜2.0mmのエアゾール噴射装置の噴射ノズル1、ボタン裏2、ステム3、チューブ4の少なくとも何れか一個所から選択された内容物流路内に、針入度が20〜90のシリコーンゲルを20〜200mg保持させたものとしている。
【0010】
【発明の実施の形態】
以下、この発明のエアゾール用遅延噴射装置ついて、詳細に説明する。
【0011】
この発明のエアゾール用遅延噴射装置は、針入度20〜90のシリコーンゲルをエアゾール噴射装置の内容物流路内に、すなわち図1に示したように、噴射ノズル1、ボタン裏2、ステム3、チューブ4等に滴下、充填して有効量保持させている。この実施形態では、エアゾール噴射装置の内容物流路内を前記個所としたが、実質的に噴射作動の栓となり得る個所であれば、特に限定されない。
【0012】
この発明において、遅延噴射時間としては、装置を作動させてから噴射させるまでの時間を約20秒以上とするのが、噴射操作をした者の安全および噴射確認のために好ましい。
【0013】
この発明におけるエアゾール噴射装置の噴射孔の径は、0.2〜2.0mmとすることができ、0.4〜1.0mmとするのが好ましい。0.2mmより小さければ噴射不可となり、2.0mmより大きければ遅延時間が20秒より短くなり好ましくない。
【0014】
この発明において用いられるシリコーンゲルは、200°C程度迄の耐熱性に優れ、−40°C程度迄の耐寒性に優れたものになるため、経時的に安定したものとなる。
【0015】
この発明において用いられるシリコーンゲルの充填量は、20〜200mg程度の極めて少量で機能を果たすが、滴下や充填の作業性等を考慮すれば、50mg前後が好ましい。
【0016】
この発明において針入度とは、JIS K2220に示された粘度試験法により測定される数値である。針入度の数値が低くなるほど、固くなることを意味する。この針入度が20より低いものを用いると噴射不可となり、90を越えると遅延時間が20秒より短くなり好ましくない。
【0017】
【実施例】
以下、この発明のエアゾール用遅延噴射装置を実施例に基づいて、さらに詳細に説明する。
(実施例1〜5、比較例1)
シリコーンゲルとして信越化学株式会社製のKE1052を用い、表1に示す針入度のものを、エアゾール噴射装置(噴孔0.4mm)のボタン裏側から2滴(約30mg)充填し、室温で2日放置した。そして、それぞれの針入度のものを5個ずつ用い、噴射するまでの遅延時間の平均値を求めた。結果を表1に示す。
【0018】
【表1】

Figure 0004157978
【0019】
表1より、針入度の低いシリコーンゲルにすると、遅延時間が長くなることが確認された。噴孔0.4mmのエアゾール噴射装置では、針入度が85、90の実施例4、5でそれぞれ平均33秒、平均22秒の適度な遅延時間が得られるものとなった。比較例1では、設計値の20秒より短く、短いものでは2、3秒程度のものもあり、ばらつきが大きくなった。
(実施例6、比較例2)
シリコーンゲルとして信越化学株式会社製のKE1052を用い、表2に示す針入度のものを、エアゾール噴射装置(噴孔1.0mm)のボタン裏側から2滴(約30mg)充填し、室温で2日放置した。そして、それぞれの針入度のものを5個ずつ用い、噴射するまでの遅延時間の平均値を求めた。結果を表2に示す。
【0020】
【表2】
Figure 0004157978
【0021】
表2より、噴孔1.0mmのエアゾール噴射装置では、針入度が50のシリコーンゲルを用いることにより、目的とする20秒以上の遅延時間が得られるものとなった。
(実施例7、比較例3)
シリコーンゲルとして信越化学株式会社製のKE105を用い、表3に示す針入度のものを、エアゾール噴射装置(噴孔1.0mm、2個付き)のボタン裏側に約60mg充填し、70°Cで5時間放置した。そして、それぞれの針入度のものを5個ずつ用い、噴射するまでの遅延時間の平均値を求めた。結果を表3に示す。
【0022】
【表3】
Figure 0004157978
【0023】
【発明の効果】
この発明のエアゾール用遅延噴射装置は、以上に述べたように構成されており、シリコーンゲルを用いるので、エアゾール噴射装置に特別な構造を必要とせず、しかも極少量のシリコーンゲルで機能を発揮することができるため、簡単に低コストで製造することができるものとなる。また、前記シリコーンゲルは流動性に優れているため、エアゾール噴射装置の細部への充填も容易で、シール性および耐湿性も良いものとなる。さらに、前記シリコーンゲルは耐熱性、耐寒性に優れているため、経時的にも機能が安定したものとなる。
【図面の簡単な説明】
【図1】この発明のエアゾール用遅延噴射装置の一実施例を示す断面図である。
【符号の説明】
1 噴射ノズル
2 ボタン裏
3 ステム
4 チューブ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aerosol delayed injection device for injecting an aerosol with a certain delay.
[0002]
[Prior art]
Normally, aerosol injection from an aerosol injection device is performed at the same time as the injection operation, but in the case of a full-volume injection type aerosol injection device, the aerosol contents are attached or inhaled to the person who performed the injection operation. In order to prevent this, there has been a demand for a structure in which the aerosol is not sprayed for a while after the spraying operation and the aerosol is sprayed after a certain period of time. As an aerosol injection device provided with such an aerosol delayed injection structure, those described in Japanese Patent Publication No. 8-29792 and Japanese Patent Publication No. 5-61975 are known.
[0003]
In Japanese Patent Publication No. 8-29792, an airtight container is filled with a high-viscosity liquid, and an introduction hole for introducing an aerosol content in a pressurized state from an aerosol injection device into this container And an outflow hole through which the high-viscosity liquid flows out. The aerosol content introduced from the introduction hole causes the high-viscosity liquid in the sealed container to flow out from the outflow hole, and subsequently the aerosol content is discharged from the outflow hole. It is made to erupt from.
[0004]
In Japanese Patent Publication No. 5-61975, an aerosol introduction chamber is provided outside a stem of an aerosol injection device, a control passage is formed between the introduction chamber and the nozzle, and the control passage is injected. It is normally closed with a delaying substance for delaying, and the control passage due to the delaying object is closed by a pressure increase above a certain level accompanying the introduction of the aerosol contents into the introduction chamber.
[0005]
[Problems to be solved by the invention]
However, in the one described in Japanese Patent Publication No. 8-29792, the aerosol injection apparatus must be provided with a sealed container in which the introduction hole and the outflow hole as described above are formed. As a result, the aerosol injection apparatus becomes complicated and has a problem of increasing the bulk.
[0006]
Further, even the one described in Japanese Patent Publication No. 5-61975 must provide the introduction chamber and the control passage as described above outside the stem of the aerosol injection device, which complicates the aerosol injection device. The problem was that the bulk would be high.
[0007]
Therefore, the present invention has been made to solve the above-described conventional problems, and it can be held in the content flow path without requiring a special structure for the aerosol injection device, and is very used. The purpose of the present invention is to provide an aerosol delayed-injection device that is easy to manufacture and can be manufactured at low cost without preparing a special composition.
[0008]
[Means for Solving the Problems]
Therefore, the aerosol delayed injection device of the present invention is selected from at least one of the injection nozzle 1, the button back 2, the stem 3 and the tube 4 of the aerosol injection device having an injection hole diameter of 0.2 to 2.0 mm. It is assumed that 20 to 200 mg of silicone gel having a penetration of 20 to 90 is held in the content flow path.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The aerosol delayed injection device of the present invention will be described in detail below.
[0011]
The aerosol delayed-injection device of the present invention has a silicone gel having a penetration of 20 to 90 in the content flow path of the aerosol injection device, that is, as shown in FIG. 1, an injection nozzle 1, a button back 2, a stem 3, An effective amount is retained by dropping and filling the tube 4 or the like. In this embodiment, the content flow path of the aerosol injection device is the above-mentioned location, but it is not particularly limited as long as it is a location that can substantially serve as a plug for the injection operation.
[0012]
In the present invention, as the delayed injection time, it is preferable that the time from when the device is operated to when it is injected is about 20 seconds or more for the safety of the person who performed the injection operation and for confirmation of the injection.
[0013]
The diameter of the injection hole of the aerosol injection apparatus in this invention can be 0.2-2.0 mm, and it is preferable to set it as 0.4-1.0 mm. If it is smaller than 0.2 mm, injection is impossible, and if it is larger than 2.0 mm, the delay time is shorter than 20 seconds, which is not preferable.
[0014]
The silicone gel used in the present invention is excellent in heat resistance up to about 200 ° C. and excellent in cold resistance up to about −40 ° C., and thus becomes stable over time.
[0015]
The filling amount of the silicone gel used in the present invention functions in an extremely small amount of about 20 to 200 mg, but about 50 mg is preferable in consideration of the workability of dropping and filling.
[0016]
In this invention, the penetration is a numerical value measured by a viscosity test method shown in JIS K2220. It means that the lower the penetration value, the harder it becomes. If the penetration is lower than 20, injection is impossible, and if it exceeds 90, the delay time is shorter than 20 seconds, which is not preferable.
[0017]
【Example】
Hereinafter, the aerosol delayed-injection apparatus of this invention is demonstrated in detail based on an Example.
(Examples 1-5, Comparative Example 1)
KE1052 manufactured by Shin-Etsu Chemical Co., Ltd. was used as the silicone gel, and two drops (about 30 mg) were filled from the back side of the button of the aerosol injection device (0.4 mm nozzle hole) with the penetration shown in Table 1 at room temperature. I left it for a day. Then, using 5 pieces of each penetration, the average value of the delay time until injection was obtained. The results are shown in Table 1.
[0018]
[Table 1]
Figure 0004157978
[0019]
From Table 1, it was confirmed that the delay time becomes longer when the silicone gel has a low penetration. In the aerosol injection device having a nozzle hole of 0.4 mm, moderate delay times of 33 seconds on average and 22 seconds on average were obtained in Examples 4 and 5 having penetrations of 85 and 90, respectively. In Comparative Example 1, there were some shorter than the designed value of 20 seconds and shorter, about 2 or 3 seconds, and the variation was large.
(Example 6, comparative example 2)
KE1052 manufactured by Shin-Etsu Chemical Co., Ltd. was used as the silicone gel, and two drops (about 30 mg) were filled from the back of the button of the aerosol injection device (injection hole 1.0 mm) shown in Table 2 at room temperature. I left it for a day. Then, using 5 pieces of each penetration, the average value of the delay time until injection was obtained. The results are shown in Table 2.
[0020]
[Table 2]
Figure 0004157978
[0021]
From Table 2, in the aerosol injection apparatus having a nozzle hole of 1.0 mm, the target delay time of 20 seconds or more was obtained by using a silicone gel having a penetration of 50.
(Example 7, Comparative Example 3)
KE105 manufactured by Shin-Etsu Chemical Co., Ltd. is used as the silicone gel, and about 60 mg of the penetration shown in Table 3 is filled on the back side of the button of the aerosol injection device (with 1.0 mm nozzle hole) and 70 ° C. And left for 5 hours. Then, using 5 pieces of each penetration, the average value of the delay time until injection was obtained. The results are shown in Table 3.
[0022]
[Table 3]
Figure 0004157978
[0023]
【The invention's effect】
The aerosol delayed injection device of the present invention is configured as described above, and uses a silicone gel. Therefore, the aerosol injection device does not require a special structure, and functions with a very small amount of silicone gel. Therefore, it can be easily manufactured at low cost. Further, since the silicone gel is excellent in fluidity, it is easy to fill the details of the aerosol spray device, and the sealing property and moisture resistance are good. Furthermore, since the silicone gel is excellent in heat resistance and cold resistance, its function is stable over time.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing one embodiment of an aerosol delayed injection device of the present invention.
[Explanation of symbols]
1 Injection nozzle 2 Button back 3 Stem 4 Tube

Claims (1)

噴射孔の径が0.2〜2.0mmのエアゾール噴射装置の噴射ノズル(1)、ボタン裏(2)、ステム(3)、チューブ(4)の少なくとも何れか一個所から選択された内容物流路内に、針入度が20〜90のシリコーンゲルを20〜200mg保持させたことを特徴とするエアゾール用遅延噴射装置。 Injection nozzle diameter of the injection hole is 0.2~2.0mm aerosol injector (1), the button back (2), the stem (3), the tube (4) of the content distribution that is selected from at least one one point A delayed injection apparatus for aerosol, wherein 20 to 200 mg of silicone gel having a penetration of 20 to 90 is held in the road.
JP10131098A 1998-04-13 1998-04-13 Aerosol delayed jetting device Expired - Fee Related JP4157978B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10131098A JP4157978B2 (en) 1998-04-13 1998-04-13 Aerosol delayed jetting device

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Application Number Priority Date Filing Date Title
JP10131098A JP4157978B2 (en) 1998-04-13 1998-04-13 Aerosol delayed jetting device

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JPH11290729A JPH11290729A (en) 1999-10-26
JP4157978B2 true JP4157978B2 (en) 2008-10-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213728B2 (en) * 2004-06-24 2007-05-08 S.C. Johnson & Son, Inc. Time delay and indicator actuator assembly for aerosol containers

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