JPH02109566A - Disinfecting method - Google Patents

Disinfecting method

Info

Publication number
JPH02109566A
JPH02109566A JP63261562A JP26156288A JPH02109566A JP H02109566 A JPH02109566 A JP H02109566A JP 63261562 A JP63261562 A JP 63261562A JP 26156288 A JP26156288 A JP 26156288A JP H02109566 A JPH02109566 A JP H02109566A
Authority
JP
Japan
Prior art keywords
irradiation
seconds
disinfection
executed
ultraviolet rays
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP63261562A
Other languages
Japanese (ja)
Other versions
JP2511126B2 (en
Inventor
Shigeo Yokoyama
横山 成男
Hikokusu Kajimoto
梶本 彦久寿
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP63261562A priority Critical patent/JP2511126B2/en
Publication of JPH02109566A publication Critical patent/JPH02109566A/en
Application granted granted Critical
Publication of JP2511126B2 publication Critical patent/JP2511126B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To advantageously apply the title method to the disinfection of microorganisms to especially attach to foodstuffs and packaging materials, the disinfection of germs floating in the air in a medicine factory, a foodstuff factory, a biochemical factory, etc., and the disinfection of water by supplying ethylene to a body to be disinfected while irradiating the body with ultraviolet rays. CONSTITUTION:At the time of irradiating the high performance by ultraviolet disinfecting lamp (output: 1KW, intensity: 200mW/cm<2>), through the irradiation for one second is insufficient, after the irradiation is executed for three seconds, 10 deg. is obtained. After the irradiation is executed for give seconds, even ozone harmful for a human organism is not detected. Further, even when the output of the high performance ultraviolet disinfecting lamp is reduced by half (100mW/cm<2>), the completely same effect as above is recognized after the irradiation is executed for three seconds by making ethylene coexist with the ultraviolet rays. Naturally, ozone harmful for the human organism is completely decomposed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は殺菌方法に関し、特に食品や包装材料に付着し
ている微生物の殺菌、医薬品、食品及びパイオニ場など
の空中浮遊菌の殺菌並びに水の殺菌に有利に適用するこ
とができる殺菌方法に関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sterilization method, and in particular to sterilization of microorganisms attached to foods and packaging materials, sterilization of airborne bacteria in pharmaceuticals, foods, pioneering places, etc. The present invention relates to a sterilization method that can be advantageously applied to sterilization.

〔従来の技術〕[Conventional technology]

従来、上述した対象物の殺菌には紫外線を照射すること
Kよって行うのが一般的であった。
Conventionally, the above-mentioned objects have generally been sterilized by irradiating them with ultraviolet light.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の紫外線照射による殺菌では、酵母類は紫外線に対
して抵抗性をもっているので強力な紫外線か紫外線照射
時間を長く採る必要があシ、エネルギーの損失や作業環
境の悪化をもたらすという問題点があった。また、紫外
線のとどかない凹凸の多−物体では完全殺菌ができない
という不具合もあった。
In conventional sterilization using ultraviolet irradiation, since yeast are resistant to ultraviolet rays, it is necessary to use strong ultraviolet rays or to use ultraviolet rays for a long time, which causes problems such as energy loss and deterioration of the working environment. Ta. Another problem was that it was impossible to completely sterilize objects with many uneven surfaces that the ultraviolet rays could not reach.

上記技術水準I/c鑑み、本発明は従来技術におけるよ
うな不具合のない殺菌方法を提供しようとするものであ
る。
In view of the above state of the art I/c, the present invention seeks to provide a sterilization method that is free from the problems encountered in the prior art.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者らは紫外線を照射するとオゾンが発生すること
にヒントを得、そのヒンNC基づいて本発明を完成する
に至った。すなわち、本発明は被殺菌体に対し、紫外線
を照射しながらエチレンを供給することを特徴とする殺
菌方法である。
The present inventors got a hint from the fact that ozone is generated when irradiated with ultraviolet rays, and completed the present invention based on the HinNC. That is, the present invention is a sterilization method characterized by supplying ethylene while irradiating the object with ultraviolet rays.

本発明において供給するエチレンは紫外線照射によって
生成したオゾンと等量のエチレン量にするのがよい。
In the present invention, the amount of ethylene to be supplied is preferably equal to that of ozone produced by ultraviolet irradiation.

〔作用〕[Effect]

紫外線の照射によって発生するオゾンとエチレンが下記
のように反応して サイドを生成する。このエチレンオキサイドは殺菌剤と
して知られているものであるが、本発明はエチレンオキ
サイドを供給するのでなく、殺菌を必要としている部所
でエチレンオキサイドを生成させるのである。この生成
した(発生基と云われる)エチレンオキサイドは殺菌力
が強力である。また紫外線によシ副生じたオゾンは人体
に有害であるが、エチレンの添加はこのオゾンを完全に
分解除去することKもなる。
Ozone and ethylene generated by ultraviolet irradiation react as shown below to generate side. This ethylene oxide is known as a disinfectant, but the present invention does not supply ethylene oxide, but rather generates ethylene oxide at the location where disinfection is required. This generated ethylene oxide (referred to as a generating group) has strong bactericidal activity. Furthermore, ozone produced by ultraviolet rays is harmful to the human body, but the addition of ethylene also completely decomposes and removes this ozone.

〔比較例〕[Comparative example]

プラスチックフィルムに枯草菌子(B、Etu’bti
usSpore )の表面に10’/帰2個の胞子を付
着させ乾燥させた。高性能紫外線殺菌ランプ(出力IK
W、強度200 mW/i)による照射をして、第1図
に示すような(a)曲線を得た。即ち、画側体数は照射
3秒後でも101と効果はあるも完全ではない。また、
照射5秒後本完全殺菌の状態は得られていない。
Bacillus subtilis (B, Etu'bti) on plastic film
10'/2 spores were attached to the surface of a usSpore) and dried. High performance UV germicidal lamp (output IK
A curve (a) as shown in FIG. 1 was obtained by irradiating with W, intensity 200 mW/i). That is, the number of bodies on the image side is 101 even after 3 seconds of irradiation, which is effective but not perfect. Also,
After 5 seconds of irradiation, complete sterilization was not achieved.

〔実施例〕 比較例1と同様の状態で照射5秒後にオゾンが10 p
pm存在したので、H,0=OH,を10 ppm供給
し紫外線照射した。その成果は第1図の(b1曲線に示
すようk、照射1秒では不充分ではあるが3秒後には1
0°になることがわかった。照射5秒後には人体に有害
なオゾンも検出されなかった。
[Example] Under the same conditions as Comparative Example 1, 10 p of ozone was applied 5 seconds after irradiation.
Since pm was present, 10 ppm of H,0=OH was supplied and ultraviolet rays were irradiated. As shown in the (b1 curve) in Figure 1, the results were as follows: k, 1 second of irradiation was insufficient, but 1 second after 3 seconds.
It turned out that it was 0°. No ozone, which is harmful to the human body, was detected 5 seconds after irradiation.

さらに高性能紫外線殺菌ランプの出力を半減(100m
W/3”)としてもエチレンを共存させると3秒照射後
には全く同様な効果が認められた。当然、人体に有害な
オゾンも完全に分解されていた。
Furthermore, the output of high-performance ultraviolet germicidal lamps was halved (100 m
When ethylene was coexisted with W/3'', exactly the same effect was observed after 3 seconds of irradiation. Naturally, ozone, which is harmful to the human body, was also completely decomposed.

〔発明の効果〕〔Effect of the invention〕

本発明により、活性な(発生基)のエチレンオキサイド
の効果と紫外線の両者の作用によシ、(1)照射時間の
短縮、(2)紫外線出力の低減、(3)完全殺菌、(4
)副生オゾンの分解が行なわれ、新規かつ工業的効果の
大な殺菌法が提供される。
According to the present invention, due to the effects of both the active (generating group) ethylene oxide and the action of ultraviolet light, (1) shortening of irradiation time, (2) reduction of ultraviolet light output, (3) complete sterilization, (4)
) By-product ozone is decomposed, providing a novel and industrially effective sterilization method.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の効果を立証するための図表である。第
1図の横軸は紫外線照射時間(sea)、縦軸は細菌生
存数(Nlを示L7、(a)は従来法、(b)は本発明
の一実施例の結果を示す曲線である。 第1図
FIG. 1 is a chart for proving the effects of the present invention. In Fig. 1, the horizontal axis is the ultraviolet irradiation time (sea), and the vertical axis is the number of viable bacteria (Nl, L7), (a) is a curve showing the results of the conventional method, and (b) is a curve showing the results of an example of the present invention. Figure 1

Claims (1)

【特許請求の範囲】[Claims] 被殺菌体に対し、紫外線を照射しながらエチレンを供給
することを特徴とする殺菌方法。
A sterilization method characterized by supplying ethylene while irradiating the object with ultraviolet rays.
JP63261562A 1988-10-19 1988-10-19 Sterilization method Expired - Lifetime JP2511126B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63261562A JP2511126B2 (en) 1988-10-19 1988-10-19 Sterilization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63261562A JP2511126B2 (en) 1988-10-19 1988-10-19 Sterilization method

Publications (2)

Publication Number Publication Date
JPH02109566A true JPH02109566A (en) 1990-04-23
JP2511126B2 JP2511126B2 (en) 1996-06-26

Family

ID=17363627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63261562A Expired - Lifetime JP2511126B2 (en) 1988-10-19 1988-10-19 Sterilization method

Country Status (1)

Country Link
JP (1) JP2511126B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422068A (en) * 1994-01-05 1995-06-06 Shalaby; Shalaby W. Radiochemical sterilization
WO1995017214A1 (en) * 1993-12-23 1995-06-29 The Anchor Brewing Company (Nz) Ltd Ethene as a sterilizing agent
JP2010523461A (en) * 2007-04-11 2010-07-15 ムービング サン リミテッド Equipment for producing and supplying open air factors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017214A1 (en) * 1993-12-23 1995-06-29 The Anchor Brewing Company (Nz) Ltd Ethene as a sterilizing agent
US5422068A (en) * 1994-01-05 1995-06-06 Shalaby; Shalaby W. Radiochemical sterilization
JP2010523461A (en) * 2007-04-11 2010-07-15 ムービング サン リミテッド Equipment for producing and supplying open air factors

Also Published As

Publication number Publication date
JP2511126B2 (en) 1996-06-26

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