JP3184578B2 - Liquid adhesion amount measurement method - Google Patents
Liquid adhesion amount measurement methodInfo
- Publication number
- JP3184578B2 JP3184578B2 JP30339391A JP30339391A JP3184578B2 JP 3184578 B2 JP3184578 B2 JP 3184578B2 JP 30339391 A JP30339391 A JP 30339391A JP 30339391 A JP30339391 A JP 30339391A JP 3184578 B2 JP3184578 B2 JP 3184578B2
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- hydrogen peroxide
- liquid
- amount
- measured
- measuring
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Description
【０００１】[0001]
【産業上の利用分野】本発明は液体付着量測定方法に関
し、さらに詳しくは例えば包装容器等の被測定物の表面
の微少な部分に付着した殺菌液等の液体の量をも正確に
測定することのできる液体付着量測定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the amount of adhered liquid, and more particularly, to accurately measure the amount of a liquid such as a sterilizing liquid adhered to a minute portion of the surface of an object to be measured such as a packaging container. The present invention relates to a method for measuring the amount of attached liquid which can be performed.
【０００２】[0002]
【従来の技術】たとえば容器の表面殺菌方法の一つとし
て過酸化水素殺菌液を容器の表面に付着させる方法が知
られている。2. Description of the Related Art For example, a method of attaching a hydrogen peroxide sterilizing solution to the surface of a container is known as one of the methods for sterilizing the surface of a container.
【０００３】そして、この過酸化水素殺菌液による殺菌
が充分に行われているか否かを知る手段の一つとして
は、容器の表面に過酸化水素殺菌液が付着しているか否
かを調べればよいことから容器の表面に付着している過
酸化水素殺菌液の量を測定する方法が知られている。[0003] One of the means for determining whether or not the sterilization with the hydrogen peroxide sterilizing solution has been sufficiently performed is to check whether or not the hydrogen peroxide sterilizing solution has adhered to the surface of the container. For good reasons, there is known a method for measuring the amount of a hydrogen peroxide sterilizing solution adhering to the surface of a container.
【０００４】具体的には、過酸化水素殺菌液の付着量の
測定には、過酸化水素殺菌液を付着させる前の容器の重
量と過酸化水素殺菌液を付着させた後の容器の重量とを
比較することによって両者の重量変化から容器全体につ
いての過酸化水素殺菌液の付着量を測定する方法、ある
いは例えば塩化ビニル樹脂板等の測定片を測定部位に予
め貼付した容器に過酸化水素殺菌液を付着させ、その
後、容器表面から剥がした測定片を水に浸漬することに
より測定片に付着している過酸化水素（Ｈ2 Ｏ2 ）を溶
出させ、得られる過酸化水素（Ｈ2Ｏ2 ）水溶液中の過
酸化水素（Ｈ2 Ｏ 2 ）濃度を測定することにより容器表
面の測定部位における過酸化水素（Ｈ2 Ｏ 2 ）の付着量
を測定する方法が行われてきた。[0004] Specifically, the amount of adhered hydrogen peroxide sterilizing solution is measured.
For the measurement, the weight of the container before attaching the hydrogen peroxide sterilizing solution
Volume and the weight of the container after the hydrogen peroxide sterilizing solution has been applied.
By comparing the weight change of both, the
Method for measuring the amount of hydrogen peroxide sterilizing solution attached
Or, for example, a measuring piece such as a vinyl chloride resin
The sterilized hydrogen peroxide solution to the container
Then, immerse the test piece peeled off from the container surface in water.
The hydrogen peroxide (HTwoOTwoDissolve)
Hydrogen peroxide (HTwoOTwo) Excess in aqueous solution
Hydrogen oxide (HTwoO Two) Container table by measuring the concentration
Hydrogen peroxide (HTwoO Two) Adhesion amount
Methods for measuring have been performed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
方法のうち、容器の重量変化から容器全体についての過
酸化水素殺菌液の付着量を測定する方法では、被測定物
全体についての過酸化水素付着量を測定することはでき
るものの被測定物表面のごく微少な部分の過酸化水素付
着量を選択的に測定することはできなかった。However, among the above methods, the method of measuring the amount of the hydrogen peroxide sterilizing solution applied to the entire container from the change in the weight of the container, the method of measuring the amount of hydrogen peroxide attached to the entire object to be measured. Although it was possible to measure the amount, it was not possible to selectively measure the amount of attached hydrogen peroxide in a very small part of the surface of the object to be measured.
【０００６】また、測定片を予め容器の表面に貼付する
方法では、例えば被測定物がＰＥＴ（ポリエチレンテレ
フタレート）ボトル等の飲料容器である場合のように被
測定物の表面形状が複雑である場合に、測定片を貼付す
ることができない部位が生じ、測定不可能になることが
あるという問題があった。In the method in which the measuring piece is pasted on the surface of the container in advance, the surface shape of the measuring object is complicated when the measuring object is a beverage container such as a PET (polyethylene terephthalate) bottle. In addition, there is a problem that a portion where the measurement piece cannot be stuck is generated, which sometimes makes measurement impossible.
【０００７】一方、例えばＰＥＴボトル等の飲料容器の
ように表面の形状が複雑な包装容器等に過酸化水素殺菌
液を付着させた場合には部位により過酸化水素付着量は
異なり、部位ごとの過酸化水素付着量が殺菌効果を確認
する上で重要な意義を有していることから、表面の形状
が複雑な被測定物についても表面における微少な部分の
過酸化水素付着量を選択的に、しかも正確に測定するこ
とができる液体付着量の測定方法が望まれている。On the other hand, when a hydrogen peroxide disinfecting solution is applied to a packaging container or the like having a complicated surface such as a beverage container such as a PET bottle, the amount of attached hydrogen peroxide varies depending on the site. Since the amount of attached hydrogen peroxide is important in confirming the bactericidal effect, it is possible to selectively remove the attached amount of hydrogen peroxide in a minute part of the surface even for an object with a complicated surface shape. In addition, there is a demand for a method for measuring the amount of adhered liquid that can be accurately measured.
【０００８】本発明は前記の事情に基づいてなされたも
のであり、本発明の目的は、例えばＰＥＴボトル等の飲
料容器のように形状の複雑な被測定物の表面における微
少な部位に付着している過酸化水素殺菌液等の液体の量
をも選択的にかつ正確に測定することのできる液体付着
量測定方法を提供することにある。[0008] The present invention has been made based on the above circumstances, and an object of the present invention is to adhere to a minute portion on the surface of an object having a complicated shape such as a beverage container such as a PET bottle. It is an object of the present invention to provide a method for measuring the amount of adhered liquid that can selectively and accurately measure the amount of a liquid such as a sterilized hydrogen peroxide solution.
【０００９】[0009]
【課題を解決するための手段】前記の目的を達成するた
めの本発明の構成は、被測定物の表面に付着している液
体の量を測定する液体付着量測定方法において、被測定
物の表面の一部に液体吸着体を圧着することにより該部
位に付着している液体を上記液体吸着体に吸着させ、次
いで、該液体吸着体に吸着させた液体を水に溶出させて
得られる水溶液の濃度を測定することを特徴とする液体
付着量測定方法である。According to a first aspect of the present invention, there is provided a method for measuring the amount of liquid adhering to the surface of an object to be measured. An aqueous solution obtained by pressing a liquid adsorbent onto a part of the surface to adsorb the liquid adhering to the site to the liquid adsorbent, and then eluting the liquid adsorbed by the liquid adsorbent into water This is a method for measuring the amount of adhering liquid, which comprises measuring the concentration of a liquid.
【００１０】[0010]
【作用】本発明の液体付着量測定方法においては、表面
に過酸化水素殺菌液等の液体が付着している被測定物の
表面の一部に液体吸着体を押し当てる。このようにして
被測定物の表面の一部に液体吸着体を圧着すると、被測
定物の表面における液体吸着体が押し当てられた部位に
付着している過酸化水素殺菌液等の液体は液体吸着体に
吸着される。次に、この液体吸着体を水に浸漬して該液
体吸着体に吸着されている過酸化水素殺菌液等の液体を
完全に水に溶出させると過酸化水素水溶液等の水溶液が
得られる。その後、この水溶液の濃度を測定することに
より被測定物の表面における液体吸着体が押し当てられ
た部位の液体の付着量を知ることができる。したがっ
て、この方法によれば、表面形状が複雑な被測定物につ
いてもその表面における微少な部位に付着している液体
の量を選択的に、しかも正確に測定することが可能であ
る。In the method for measuring the amount of liquid adhered according to the present invention, a liquid adsorbent is pressed against a part of the surface of the object to be measured having a liquid such as a hydrogen peroxide sterilizing liquid adhered to the surface. When the liquid adsorbent is pressed against a part of the surface of the object to be measured in this way, the liquid such as a hydrogen peroxide sterilizing solution adhered to the portion of the surface of the object to which the liquid adsorbent is pressed is a liquid. Adsorbed by the adsorbent. Next, when the liquid adsorbent is immersed in water to completely elute a liquid such as a hydrogen peroxide sterilizing solution adsorbed on the liquid adsorbent into water, an aqueous solution such as an aqueous hydrogen peroxide solution is obtained. Thereafter, by measuring the concentration of the aqueous solution, it is possible to know the amount of liquid adhering to the portion of the surface of the object to which the liquid adsorbent is pressed. Therefore, according to this method, it is possible to selectively and accurately measure the amount of liquid adhering to a minute portion on the surface of an object having a complicated surface shape.
【００１１】[0011]
【実施例】次に本発明の実施例を示し、本発明について
さらに具体的に説明する。この実施例においては、表面
に過酸化水素殺菌液（Ｈ2 Ｏ2 ）を付着させた被測定物
の表面の過酸化水素殺菌液の付着量を次のようにして測
定する。EXAMPLES Next, examples of the present invention will be shown, and the present invention will be described more specifically. In this embodiment, the adhered amount of the hydrogen peroxide sterilizing solution on the surface of the measured object having the hydrogen peroxide sterilizing solution (H 2 O 2 ) adhered to the surface is measured as follows.
【００１２】先ず、被測定物の表面に液体吸着体を押し
当てて被測定物における測定部位の過酸化水素殺菌液
（Ｈ2 Ｏ2 ）を上記の液体吸着体に吸着させる。なお、
付着量の測定対象となる液体については、この実施例に
おける過酸化水素殺菌液（Ｈ2 Ｏ2 ）に限定されるもの
ではなく、たとえばメチルアルコール、エチルアルコー
ル、酢酸等であってもよい。First, a liquid adsorbent is pressed against the surface of an object to be measured, and a sterilizing solution of hydrogen peroxide (H 2 O 2 ) at a measurement site in the object to be measured is adsorbed on the liquid adsorbent. In addition,
The liquid for which the amount of adhesion is to be measured is not limited to the hydrogen peroxide sterilizing solution (H 2 O 2 ) in this embodiment, but may be, for example, methyl alcohol, ethyl alcohol, acetic acid, or the like.
【００１３】液体吸着体としては、たとえば紙、繊維な
どの繊維質体を好適に使用することが可能であり、具体
的には瀘紙、ペーパーディスクなどが挙げられる。これ
らの液体吸着体のなかでも、ペーパーディスクを特に好
適に使用することができる。すなわち、ペーパーディス
クを使用することにより、被測定物の表面における微少
な部位に付着している過酸化水素付着量をも正確に測定
することができるからである。このペーパーディスクに
よる最少測定面積は、通常、０．３ｃｍ2 程度である。As the liquid adsorbent, for example, a fibrous material such as paper or fiber can be suitably used, and specific examples thereof include filter paper and paper disk. Among these liquid adsorbents, a paper disk can be particularly preferably used. That is, by using a paper disk, it is possible to accurately measure the amount of hydrogen peroxide attached to a minute portion on the surface of the object to be measured. The minimum measurement area of this paper disk is usually about 0.3 cm 2 .
【００１４】被測定物の形状については、特に制限はな
く、たとえばＰＥＴ（ポリエチレンテレフタレート）ボ
トルのように湾曲部を有する複雑な形状であってもよ
い。また、被測定物の表面に対する液体吸着体の圧着時
間は、通常、５秒間以上、好ましくは８秒間〜１２秒間
程度である。The shape of the object to be measured is not particularly limited, and may be a complicated shape having a curved portion such as a PET (polyethylene terephthalate) bottle. In addition, the pressing time of the liquid adsorbent on the surface of the object to be measured is usually 5 seconds or more, preferably about 8 seconds to 12 seconds.
【００１５】上記のようにして過酸化水素殺菌液（Ｈ2
Ｏ2 ）を吸着させた液体吸着体を、次いで、水に浸漬す
る。使用に供される水は充分に高純度のものであること
が好ましく、またこの水の用量は、液体吸着体の拭き取
り面積や後述する過酸化水素濃度測定装置の感度等によ
っても異なるので一様に決定することは困難であるが、
通常、５〜１０ｍｌ程度で充分である。液体吸着体に吸
着されている過酸化水素殺菌液（Ｈ2 Ｏ2 ）を水に完全
に溶出させるためには、液体吸着体を水中に浸漬させた
状態で充分に振とうすることが好ましい。また、液体吸
着体の浸漬時間は、通常、６０秒間以上である。As described above, the hydrogen peroxide sterilizing solution (H 2
The liquid adsorbent having O 2 ) adsorbed thereon is then immersed in water. The water to be used is preferably of sufficiently high purity, and the amount of this water varies depending on the wiping area of the liquid adsorbent, the sensitivity of the hydrogen peroxide concentration measuring device described later, and the like, so that it is uniform. Is difficult to determine,
Usually, about 5 to 10 ml is sufficient. In order to completely elute the hydrogen peroxide sterilizing solution (H 2 O 2 ) adsorbed on the liquid adsorbent into water, it is preferable to sufficiently shake the liquid adsorbent while immersing it in water. The immersion time of the liquid adsorbent is usually 60 seconds or more.
【００１６】このようにして得られる過酸化水素水溶液
の過酸化水素濃度を測定することにより、液体吸着体に
吸着された過酸化水素殺菌液（Ｈ2 Ｏ2 ）の量、すなわ
ち被測定物表面の測定部位における過酸化水素殺菌液
（Ｈ2 Ｏ2 ）の付着量を知ることができる。By measuring the hydrogen peroxide concentration of the aqueous hydrogen peroxide solution thus obtained, the amount of the hydrogen peroxide sterilizing solution (H 2 O 2 ) adsorbed on the liquid adsorbent, ie, the surface of the object to be measured, is measured. The amount of adhered hydrogen peroxide sterilizing solution (H 2 O 2 ) at the measurement site can be known.
【００１７】過酸化水素水溶液中の過酸化水素濃度の測
定には、酸素電極法を好適に採用することが可能であ
り、具体的には酸素電極を用いてなる過酸化水素濃度測
定装置を使用すればよい。このような過酸化水素濃度測
定装置としては、たとえば「オリテクター」（オリエン
タル電気社製）が挙げられる。For the measurement of the concentration of hydrogen peroxide in the aqueous hydrogen peroxide solution, an oxygen electrode method can be suitably employed. Specifically, a hydrogen peroxide concentration measuring device using an oxygen electrode is used. do it. As such a hydrogen peroxide concentration measuring device, for example, “Oriector” (manufactured by Oriental Electric Co., Ltd.) can be mentioned.
【００１８】次に、この液体付着量測定方法の実験例を
示す。実験例１ ベルトコンベアー上に1150ｍｍ×375 ｍｍ×210 ｍｍの
トンネルを設置し、このトンネル内に過酸化水素（Ｈ2
Ｏ2 ）ガスが吹き込まれる装置を作製して以下の実験を
行なった。Next, an experimental example of this liquid adhesion amount measuring method will be described. Experimental Example 1 A tunnel of 1150 mm × 375 mm × 210 mm was installed on a belt conveyor, and hydrogen peroxide (H 2
An apparatus into which O 2 ) gas was blown was manufactured, and the following experiment was performed.
【００１９】トンネル内に２２．６ｇ／min の割合で過
酸化水素（Ｈ2 Ｏ2 ）を噴霧し、その中を通過したＰＥ
Ｔ（ポリエチレンテレフタレート）ボトルを、コンベア
ーから搬出された直後に取り上げ、過酸化水素（Ｈ2 Ｏ
2 ）ミストが乾燥しないうちに、このＰＥＴボトルの表
面のサンプリングしたい位置にペーパーディスク（東洋
製作所製、「ＴＯＹＯペーパーディスク」）を１０秒間
押し当てた。Hydrogen peroxide (H 2 O 2 ) was sprayed into the tunnel at a rate of 22.6 g / min, and the PE passing through the tunnel was sprayed.
A T (polyethylene terephthalate) bottle is taken out immediately after being carried out of the conveyor, and hydrogen peroxide (H 2 O)
2 ) While the mist was not dried, a paper disk (TOYO Paper Disk, manufactured by Toyo Seisakusho) was pressed for 10 seconds on the surface of the PET bottle to be sampled.
【００２０】その後、ペーパーディスクを静かに剥が
し、このペーパーディスクを９ｍｌの蒸溜水に浸漬し、
よく振って過酸化水素（Ｈ2 Ｏ2 ）を完全に溶出させ
た。なお、浸漬時間は１８０秒間とした。Thereafter, the paper disk was gently peeled off, and this paper disk was immersed in 9 ml of distilled water.
Shake well to completely elute the hydrogen peroxide (H 2 O 2 ). The immersion time was 180 seconds.
【００２１】このようにして得られた過酸化水素（Ｈ2
Ｏ2 ）水溶液について、瀘過を行ってペーパーディスク
の紙粉を取り除いてから瀘液中の過酸化水素（Ｈ
2 Ｏ2 ）量を酸素電極を用いてなる過酸化水素（Ｈ2 Ｏ
2 ）濃度測定装置（オリエンタル電気社製、「オリテク
ター」）を使用して測定した。The thus obtained hydrogen peroxide (H 2
The O 2 ) aqueous solution is filtered to remove paper dust from the paper disk, and then the hydrogen peroxide (H
2 O 2) amount obtained by using the oxygen electrode of hydrogen peroxide (H 2 O
2 ) The concentration was measured using a concentration measuring device (Oriental Electric Co., Ltd., “Oritector”).
【００２２】測定された過酸化水素（Ｈ2 Ｏ2 ）付着量
は２．６５×１０-1μｌ／ｃｍ2 であった。一方、１ｃ
ｍ角に切った塩化ビニル板を上記の実験でＰＥＴボトル
表面のペーパーディスクを圧着したのと同じ部位に貼付
し、その後、このＰＥＴボトルをベルトコンベアーで搬
送して２２．６ｇ／min の割合で過酸化水素（Ｈ
2 Ｏ2 ）が噴霧されているトンネル内を通過させた。The measured amount of hydrogen peroxide (H 2 O 2 ) was 2.65 × 10 -1 μl / cm 2 . On the other hand, 1c
A vinyl chloride plate cut into an m-square was attached to the same portion of the PET bottle on the surface of the PET bottle where the paper disc was crimped in the above experiment, and then the PET bottle was conveyed on a belt conveyor at a rate of 22.6 g / min. Hydrogen peroxide (H
2 O 2 ) was passed through the tunnel where it was sprayed.
【００２３】次いで、過酸化水素（Ｈ2 Ｏ2 ）ミストが
噴霧されてからコンベアーによって搬出されたＰＥＴボ
トルの表面に貼付されている塩化ビニル板を剥がし、そ
の塩化ビニル板を９ｍｌの蒸溜水に浸漬し、よく振って
過酸化水素（Ｈ2 Ｏ2 ）を完全に溶出させた。なお、浸
漬時間は１８０秒間とした。Next, after spraying hydrogen peroxide (H 2 O 2 ) mist, the vinyl chloride plate attached to the surface of the PET bottle carried out by the conveyor is peeled off, and the vinyl chloride plate is put into 9 ml of distilled water. It was immersed and shaken well to completely elute the hydrogen peroxide (H 2 O 2 ). The immersion time was 180 seconds.
【００２４】このようにして得られた過酸化水素（Ｈ2
Ｏ2 ）水溶液中の過酸化水素（Ｈ2 Ｏ2 ）濃度を酸素電
極を用いてなる過酸化水素（Ｈ2 Ｏ2 ）濃度測定装置
（オリエンタル電気社製、「オリテクター」）を使用し
て測定した。The thus obtained hydrogen peroxide (H 2
The concentration of hydrogen peroxide (H 2 O 2 ) in the aqueous solution of O 2 ) is measured using a hydrogen peroxide (H 2 O 2 ) concentration measuring device (Oriental Electric Co., Ltd., “Orientor”) using an oxygen electrode. did.
【００２５】測定された過酸化水素（Ｈ2 Ｏ2 ）付着量
は１．２７×１０-1μｌ／ｃｍ2 であった。以上の測定
結果を、縦軸をペーパーディスクを用いた測定法（ペー
パーディスク法）による測定結果、横軸を塩化ビニル板
を用いた従来法（浸漬法）による測定結果として図１に
点Ａで示す。実験例２ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から３５．０
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。The measured amount of deposited hydrogen peroxide (H 2 O 2 ) was 1.27 × 10 -1 μl / cm 2 . The vertical axis represents the measurement results obtained by the measurement method using a paper disk (paper disk method), and the horizontal axis represents the measurement results obtained by a conventional method using a vinyl chloride plate (immersion method). Show. EXPERIMENTAL EXAMPLE 2 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on a PET bottle was from 22.6 g / min to 35.0.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００２６】その結果、本発明の方法では２．７２×１
０-1μｌ／ｃｍ2 、浸漬法では１．９２×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｂで示す。実験例３ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から４７．５
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 2.72 × 1
0 -1 μl / cm 2 , 1.92 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. Experimental Example 3 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on the PET bottle was from 22.6 g / min to 47.5.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００２７】その結果、本発明の方法では３．２１×１
０-1μｌ／ｃｍ2 、浸漬法では１．８４×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｃで示す。実験例４ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から５４．２
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 3.21 × 1
0 -1 μl / cm 2 , 1.84 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. Experimental Example 4 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on the PET bottle was from 22.6 g / min to 54.2.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００２８】その結果、本発明の方法では４．６２×１
０-1μｌ／ｃｍ2 、浸漬法では３．３９×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｄで示す。実験例５ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から６１．０
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 4.62 × 1
0 -1 μl / cm 2 , 3.39 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. EXPERIMENTAL EXAMPLE 5 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on a PET bottle was from 22.6 g / min to 61.0 g / min.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００２９】その結果、本発明の方法では４．０６×１
０-1μｌ／ｃｍ2 、浸漬法では３．５３×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｅで示す。実験例６ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から６７．８
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 4.06 × 1
0 -1 μl / cm 2 , 3.53 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. EXPERIMENTAL EXAMPLE 6 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on a PET bottle was from 22.6 g / min to 67.8.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００３０】その結果、本発明の方法では４．５０×１
０-1μｌ／ｃｍ2 、浸漬法では４．３７×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｆで示す。実験例７ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から７３．５
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 4.50 × 1
0 -1 μl / cm 2 , 4.37 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The result is indicated by point F in FIG. Experimental Example 7 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) on the PET bottle was from 22.6 g / min to 73.5.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００３１】その結果、本発明の方法では４．６１×１
０-1μｌ／ｃｍ2 、浸漬法では４．４６×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｇで示す。実験例８ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から８１．４
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 4.61 × 1
0 -1 μl / cm 2 , 4.46 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. EXPERIMENTAL EXAMPLE 8 In Experimental Example 1, the spraying rate of hydrogen peroxide (H 2 O 2 ) to a PET bottle was changed from 22.6 g / min to 81.4.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００３２】その結果、本発明の方法では６．００×１
０-1μｌ／ｃｍ2 、浸漬法では５．２１×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｈで示す。実験例９ 前記実験例１において、ＰＥＴボトルへの過酸化水素
（Ｈ2 Ｏ2）噴霧割合を２２．６ｇ／min から８８．１
ｇ／min に代えたほかは、前記実験例１と同様にして本
発明の方法および浸漬法のそれぞれによって測定した。As a result, in the method of the present invention, 6.00 × 1
0 -1 μl / cm 2 , 5.21 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. EXPERIMENTAL EXAMPLE 9 In Experimental Example 1, the rate of spraying hydrogen peroxide (H 2 O 2 ) onto a PET bottle was from 22.6 g / min to 88.1.
The measurement was performed by the method of the present invention and the dipping method in the same manner as in Experimental Example 1 except that g / min was used.
【００３３】その結果、本発明の方法では６．５３×１
０-1μｌ／ｃｍ2 、浸漬法では６．５７×１０-1μｌ／
ｃｍ2 の過酸化水素（Ｈ2 Ｏ2 ）付着量が測定された。
結果を図１に点Ｉで示す。結果の検討 以上の実験結果からペーパーディスクを用いた本発明の
方法と従来の浸漬法との間には、直線的相関関係（相関
関数ｒ＝０．９７）があることが確認され、これより本
発明の方法は例えばＰＥＴボトル等の表面に付着してい
る過酸化水素殺菌液（Ｈ2 Ｏ2 ）等の液体の付着量を測
定する一つの方法となり得ることが明らかになった。As a result, in the method of the present invention, 6.53 × 1
0 -1 μl / cm 2 , 6.57 × 10 -1 μl /
The amount of attached hydrogen peroxide (H 2 O 2 ) in cm 2 was measured.
The results are shown in FIG. Examination of Results From the above experimental results, it was confirmed that there was a linear correlation (correlation function r = 0.97) between the method of the present invention using a paper disk and the conventional immersion method. It has been found that the method of the present invention can be one method of measuring the amount of liquid attached, such as a hydrogen peroxide sterilizing solution (H 2 O 2 ), attached to the surface of a PET bottle or the like.
【００３４】[0034]
【発明の効果】本発明によれば、以上の構成としたの
で、例えばＰＥＴボトルなどの飲料容器等の被測定物の
表面における微少な部位に付着している過酸化水素等の
液体の量をも選択的に且つ正確に測定することのできる
液体付着量測定方法を提供することができる。As described above, according to the present invention, the amount of liquid such as hydrogen peroxide adhering to a minute portion on the surface of the object to be measured such as a beverage container such as a PET bottle can be reduced. Can also provide a method for measuring the amount of adhered liquid that can be selectively and accurately measured.
【図１】本発明の方法による測定結果と従来の浸漬法に
よる測定結果とを示すグラフである。FIG. 1 is a graph showing a measurement result by a method of the present invention and a measurement result by a conventional immersion method.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01N 1/10 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) G01N 1/10
Claims (1)
を測定する液体付着量測定方法において、被測定物の表
面の一部に液体吸着体を圧着することにより該部位に付
着している液体を上記液体吸着体に吸着させ、次いで、
該液体吸着体に吸着させた液体を水に溶出させて得られ
る水溶液の濃度を測定することを特徴とする液体付着量
測定方法。In a liquid adhesion amount measuring method for measuring the amount of liquid adhering to the surface of an object, a liquid adsorbent is attached to a part of the surface of the object by pressing the liquid adsorbent onto the part. Liquid is adsorbed on the liquid adsorbent,
A liquid adhering amount measuring method, comprising measuring the concentration of an aqueous solution obtained by eluting the liquid adsorbed on the liquid adsorbent into water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30339391A JP3184578B2 (en) | 1991-11-19 | 1991-11-19 | Liquid adhesion amount measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30339391A JP3184578B2 (en) | 1991-11-19 | 1991-11-19 | Liquid adhesion amount measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05139421A JPH05139421A (en) | 1993-06-08 |
| JP3184578B2 true JP3184578B2 (en) | 2001-07-09 |
Family
ID=17920485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30339391A Expired - Lifetime JP3184578B2 (en) | 1991-11-19 | 1991-11-19 | Liquid adhesion amount measurement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3184578B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3070011B1 (en) * | 2013-11-11 | 2021-08-11 | Mitsubishi Heavy Industries Machinery Systems, Ltd. | Sterilization device for container |
-
1991
- 1991-11-19 JP JP30339391A patent/JP3184578B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05139421A (en) | 1993-06-08 |
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