JP2004338719A - Aseptic filling vessel - Google Patents

Aseptic filling vessel Download PDF

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Publication number
JP2004338719A
JP2004338719A JP2003133919A JP2003133919A JP2004338719A JP 2004338719 A JP2004338719 A JP 2004338719A JP 2003133919 A JP2003133919 A JP 2003133919A JP 2003133919 A JP2003133919 A JP 2003133919A JP 2004338719 A JP2004338719 A JP 2004338719A
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JP
Japan
Prior art keywords
container
aseptic filling
hydrogen peroxide
sterilization
sterilizing
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Pending
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JP2003133919A
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Japanese (ja)
Inventor
Etsuo Shimamura
悦夫 島村
Shinsuke Yamazaki
晋輔 山▲崎▼
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Toppan Inc
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Toppan Printing Co Ltd
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Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP2003133919A priority Critical patent/JP2004338719A/en
Publication of JP2004338719A publication Critical patent/JP2004338719A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To make it difficult for an agent to remain in the inner surface of a vessel after sterilizing the vessel using the agent, such as one composed of hydrogen peroxide or peracetic acetic acid, in a aseptic filling/packaging system for liquid beverages, foods, medicines, or the like. <P>SOLUTION: The vessel A used for aseptic filling/packaging is made of a polyethylane terephthalate resin or a polystyrene resin. An inorganic compound deposit film 2, which is of a silicon oxide deposition film or the like made by a chemical vapor deposition method and prevents the absorption of the antimicrobial agent mainly composed of hydrogen peroxide and peracetic acetic acid, is formed as the inner most layer of the resin of the vessel. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、液体飲料や食品あるいは医薬品等の無菌充填包装に使用する無菌充填容器に関する。
【0002】
【従来の技術】
一般に液体飲料や食品あるいは医薬品等の無菌充填包装において用いられる容器の殺菌方法には、過酸化水素や過酢酸のような薬剤や、スチームなどの熱や、γ栓や電子ビーム等の放射線照射が用いられ、この中で、無菌充填包装機内において、包装容器を殺菌する場合には、過酸化水素や過酢酸といった薬剤が使用される場合が多い。
【0003】
上記殺菌方法を適用する無菌充填包装に使用する容器としては、通常のポリエチレンテレフタレート樹脂製のプラスチックボトル(PETボトル)や、ポリスチレン樹脂製のカップ(PSカップ)、紙を主体としてプラスチックフィルムを複合してなる紙製容器(紙パック)、あるいは金属缶やガラス瓶などが用いられている。
【0004】
PETボトルやPETカップ、PSボトルやPSカップ、紙パックといった容器の場合、過酸化水素や過酢酸といった薬剤を用いると、容器内面にある樹脂表面の吸着作用により、容器内面に付着した殺菌後の過酸化水素や過酢酸などの薬剤が十分に除去できず、容器内面に残留する問題がある。
【0005】
また、容器内面に残留した殺菌薬剤を除去するためには、ホットエアーなどの吹き付けによる簡易な方法では十分に除去できず、無菌水による洗浄操作といった大掛かりな洗浄装置が必要になる。
【0006】
【発明が解決しようとする課題】
本発明の課題は、液体飲料や食品あるいは医薬品等の無菌充填包装システムにおいて過酸化水素や過酢酸といった薬剤を用いて容器を殺菌する場合に、殺菌後の薬剤が容器の内面に残留し難くすることにある。
【0007】
【課題を解決するための手段】
本発明の請求項1に係る発明は、無菌充填包装に用いる容器の最内面に、殺菌用薬剤の吸着を防止する無機化合物蒸着膜が設けられていることを特徴とする無菌充填容器である。
【0008】
本発明の請求項2に係る発明は、上記請求項1に係る無菌充填容器において、前記容器の最内面が、ポリエチレンテレフタレート樹脂又はポリスチレン樹脂であることを特徴とする無菌充填容器である。
【0009】
本発明の請求項3に係る発明は、上記請求項1又は2に係る無菌充填容器において、前記無機化合物蒸着膜が、化学蒸着法にて成膜された酸化珪素蒸着膜であることを特徴とする無菌充填容器である。
【0010】
本発明の請求項4に係る発明は、上記請求項1乃至3のいずれか1項に係る無菌充填容器において、容器の殺菌に使用する薬剤が、過酸化水素又は過酢酸を主成分とする殺菌剤であることを特徴とする無菌充填容器である。
【0011】
【発明の実施の形態】
本発明の無菌充填容器の発明の実施の形態を以下に詳細に説明すれば、図1は本発明の無菌充填容器Aの側断面図であり、例えばボトル状の容器外壁部1の最内面に、無機化合物蒸着膜2が設けられているものである。
【0012】
無機化合物蒸着膜2は、ボトル状、カップ状、トレー状など適宜な容器形態に成形した後の容器外壁部1を、化学蒸着装置のチャンバー内に装填し、そのチャンバー内に装填した容器外壁部1の容器形態内部に、包装内容物を充填する充填口3から無機化合物の蒸着膜を形成するための蒸着用ガスを供給ノズル(図示せず)等にて供給して、容器外壁部1の内面に無機化合物蒸着膜2を形成したものである。
【0013】
前記無機化合物蒸着膜2としては、例えば、シラン化合物モノマーを加熱してガス化したシラン化合物ガスと酸素とを用いて、化学蒸着法(CVD法)により蒸着形成した酸化珪素蒸着膜が適当である。
【0014】
本発明の無菌充填容器は、一般的な通常の無菌充填包装機によって、所定の内容物を無菌充填包装することができる。
【0015】
図2は、本発明の無菌充填容器Aを殺菌処理する殺菌装置の概要図であり、殺菌用薬剤aとして過酸化水素又は過酢酸などの殺菌剤を加熱して蒸気化する薬剤気化室10と、気化した殺菌用薬剤aを送流する送流パイプ部20と、無菌充填容器Aに対して気化した殺菌用薬剤aを供給する薬剤供給口30からなる。
【0016】
薬剤気化室10内には、過酸化水素又は過酢酸などの殺菌用薬剤aを気化室10内に供給する供給ノズル11と、気化室10内に供給された薬剤aを加熱して気化する加熱部12(加熱ヒーター)を備える。
【0017】
気化した殺菌用薬剤aは、気化室10から送流パイプ部20を通って供給口30に供給され、無菌充填容器Aは、供給口30から供給される気化した殺菌用薬剤aにより殺菌処理される。
【0018】
無菌充填容器Aの内面には、殺菌処理に使用した気化した殺菌用薬剤aが、温度降下により凝集し付着残留するものであるが、殺菌用薬剤aは、容器A内面の無機化合物蒸着膜2に吸着されることはない。
【0019】
図3は、本発明の無菌充填容器Aを、図2に示す上記殺菌装置により殺菌処理する殺菌工程(I)と、殺菌処理後に無菌充填容器Aの内部に残留する殺菌薬剤aを除去し、乾燥する乾燥工程(II)とを説明する殺菌乾燥装置の概要図である。
【0020】
図3に示すように、バケット、コンベアベルト、コンベアローラ等の容器搬送手段40により、本発明の無菌充填容器Aを殺菌工程(I)に導入し、図2に示す殺菌装置の薬剤供給口30から気化した殺菌用薬剤aを容器Aの内部に噴射して殺菌処理する。
【0021】
続いて、殺菌処理された容器Aを、容器搬送手段40により、ホットエアー噴射手段50を備えた乾燥工程(II)に導入する。
【0022】
ホットエアー噴射手段50は、エアーブロア51と除菌フィルター部52と加熱ヒーター部53がエアー送流パイプ54にて接続されていて、エアーブロア51にて供給される圧送エアーbは、除菌フィルター部52にて無菌状態に除菌され、加熱ヒーター部53にて加熱されて無菌ホットエアーcとなる。
【0023】
エアー送流パイプ54の末端部には、容器搬送手段40により搬送される容器Aの搬送配列方向に沿って分配パイプ55が接続されていて、分配パイプ55にはエアー送流パイプ54から無菌ホットエアーcが供給される。
【0024】
分配パイプ55には、容器Aの搬送配列方向に、各々容器Aの充填口3(容器開口部)内に向かって、無菌ホットエアーcを噴出させる複数のホットエアー噴出ノズルN、N、N、・・・Nを備えている。また、該各々ノズルN、N、N、・・・Nには、そのノズルの長さやエアー噴射角度を適宜に自動的に変更可能な揺動駆動機構を備えていてもよく、各々ノズルは、容器A内部に進入した後のエアー噴射高さや角度姿勢の揺動変更により、容器A内面に付着残留する殺菌用薬剤aを、無菌ホットエアーcの噴射力によって吹き飛ばし、その熱によって蒸発乾燥させることができる。
【0025】
ホットエアー噴出ノズルN、N、N、・・・Nは、容器搬送手段40により搬送される各々容器Aの内部に向かって、繰り返し無菌ホットエアーcを噴射して、各々容器A内面の無機化合物蒸着膜2面に吸着せずに付着している殺菌薬剤aを、エアーcの噴射力と熱により、容器Aの外側に吹き飛ばし、蒸発させ、乾燥させて除去する。
【0026】
以下に、本発明の無菌充填容器の具体的実施例について説明する。
【0027】
<実施例1>
無菌充填包装に用いる容器Aとしてポリエチレンテレフタレート樹脂製のPETボトル(充填可能容積200ml)を用い、その容器の最内面(内容物と接する面)に殺菌用薬剤が吸着するのを防止するために、その容器Aの最内面に化学蒸着法にて酸化珪素蒸着膜を成膜し、本発明の無菌充填容器A(9個)を作製した。
【0028】
次に、作製した9個の本発明の無菌充填容器Aを、殺菌工程(I)において過酸化水素35%蒸気を殺菌剤とする殺菌装置(蒸気用加熱ヒーター温度300℃、過酸化水素蒸気スプレー量0.5ml/秒)に通し、容器A内面に過酸化水素蒸気をスプレーして殺菌した。
【0029】
続いて、殺菌した各容器Aを、乾燥工程(II)においてホットエアー乾燥装置(乾燥用ホットエアー)に通し、容器A内面に付着する過酸化水素の乾燥を行って殺菌処理を行った。なお、乾燥工程(II)においては、9個の容器Aを3個1組として3組に分け、その内の1組目の容器Aの乾燥装置の乾燥用ホットエアー温度の設定値を40℃、2組目を80℃、3組目を120℃の各段階に分けて行った。また、殺菌処理後の各容器A内面の過酸化水素の残留量の計測は、殺菌処理後の容器A内に200mlの蒸留水を充填した後の該蒸留水中の過酸化水素量を酸素電極法にて計測した。
【0030】
<実施例2>
実施例1と同様にして、無菌充填包装に用いる容器Aとしてポリエチレンテレフタレート樹脂製のPETボトル(充填可能容積200ml)を用い、その容器の最内面(内容物と接する面)に殺菌用薬剤が吸着するのを防止するために、その容器Aの最内面に化学蒸着法にて酸化珪素蒸着膜を成膜して、本発明の無菌充填容器A(9個)を作製した。
【0031】
次に、過酸化水素20%と過酢酸9%とを含有する過酢酸系殺菌剤を蒸留水にて4%濃度に希釈した殺菌剤を調整し、該殺菌剤を、作製した9個の容器A内に満量充填し、4分間保放置した後に、各容器A内の殺菌剤を排出した。
【0032】
続いて、殺菌した各容器Aを、実施例1と同様にして、乾燥工程(II)においてホットエアー乾燥装置(乾燥用ホットエアー)に通し、各容器A内面に付着する過酸化水素の乾燥を行って殺菌処理を行った。なお、乾燥工程(II)においては、実施例1と同様にして、9個の容器Aを3個1組として3組に分け、その内の1組目の容器Aの乾燥装置の乾燥用ホットエアー温度の設定値を40℃、2組目を80℃、3組目を120℃の各段階に分けて行った。また、殺菌処理後の各容器A内面の過酸化水素の残留量の計測は、殺菌処理後の容器A内に、25mlの蒸留水を充填した後の該蒸留水中の過酸化水素量を、酸素電極法にて計測した。
【0033】
<比較例1>
無菌充填包装に用いる容器Aとして、容器Aの最内面に酸化珪素蒸着膜の成膜を行わない内面未処理のポリエチレンテレフタレート樹脂製のPETボトル(充填可能容積200ml)を9個用意した。
【0034】
次に、上記9個の内面未処理の各容器Aを、実施例1と同様にして、殺菌工程(I)において過酸化水素35%蒸気を殺菌剤とする殺菌装置(蒸気用加熱ヒーター温度300℃、過酸化水素蒸気スプレー量0.5ml/秒)に通し、容器A内面に過酸化水素蒸気をスプレーして殺菌し、続いて、殺菌した各容器Aを、実施例1と同様にして、乾燥工程(II)においてホットエアー乾燥装置(乾燥用ホットエアー)に通して、容器A内面に付着する過酸化水素の乾燥を行って殺菌処理を行った。なお、乾燥工程(II)においては、実施例1と同様にして、9個の容器Aを3個1組として3組に分け、その内の1組目の容器Aの乾燥装置の乾燥用ホットエアー温度の設定値を40℃、2組目を80℃、3組目を120℃の各段階に分けて行い、また、殺菌処理後の各容器A内面の過酸化水素の残留量の計測は、殺菌処理後の容器A内に200mlの蒸留水を充填した後の該蒸留水中の過酸化水素量を酸素電極法にて計測した。
【0035】
<比較例2>
容器の最内面に酸化珪素蒸着膜の成膜を行わない内面未処理のポリエチレンテレフタレート樹脂製のPETボトル(充填可能容積200ml)を、9個用意した。
【0036】
次に、実施例2と同様にして、過酸化水素20%と過酢酸9%とを含有する過酢酸系殺菌剤を蒸留水にて4%濃度に希釈した殺菌剤を調整し、該殺菌剤を、作製した9個の容器内に満量充填し、4分間保放置した後に、各容器内の殺菌剤を排出した。
【0037】
続いて、殺菌した各容器を、実施例2と同様にして、乾燥工程(II)においてホットエアー乾燥装置(乾燥用ホットエアー)に通し、各容器内面に付着する過酸化水素の乾燥を行って殺菌処理を行った。なお、乾燥工程(II)においては、実施例2と同様にして、9個の容器を3個1組として3組に分け、その内の1組目の容器の乾燥装置の乾燥用ホットエアー温度の設定値を40℃、2組目を80℃、3組目を120℃の各段階に分けて行った。また、殺菌処理後の各容器内面の過酸化水素の残留量の計測は、殺菌処理後の容器内に25mlの蒸留水を充填した後の該蒸留水中の過酸化水素量を酸素電極法にて計測した。
【0038】
<評価結果>
上記実施例1、2、及び比較例1、2における各容器の内面に残留する過酸化水素量の計測値(ppm)を表1に示す。なお、評価において、○は過酸化水素残留無し、容器の熱変形無しにて良好、△は容器の熱変形無し、過酸化水素残留がやや有りにてやや良好、×は過酸化水素残留有りにて不良を示す。
【0039】
【表1】

Figure 2004338719
【0040】
【発明の効果】
本発明の無菌充填容器は、容器の内面に無機化合物蒸着膜が施されているために、液体飲料や食品あるいは医薬品等の無菌充填包装システムにおいて、過酸化水素や過酢酸といった殺菌用薬剤を用いて容器を殺菌する場合に、殺菌後の殺菌用薬剤が、容器の内面に付着し残留しても、容器内面の無機化合物蒸着膜には吸着されないため、容器内面に付着残留する殺菌用薬剤を、無菌ホットエアーの噴射力と熱によって、容易に容器の外側に吹き飛ばし、蒸発させ、乾燥させて除去することができる。
【図面の簡単な説明】
【図1】本発明の無菌充填容器の側断面図。
【図2】本発明の無菌充填容器の殺菌処理を行う殺菌装置の概要図。
【図3】本発明の無菌充填容器の殺菌処理と殺菌に使用した殺菌用薬剤を乾燥除去する殺菌乾燥処理装置の概要図。
【符号の説明】
A…無菌充填容器 1…容器外壁部 2…無機化合物蒸着膜 3…内容物充填口[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an aseptic filling container used for aseptic filling and packaging of liquid beverages, foods, pharmaceuticals, and the like.
[0002]
[Prior art]
In general, sterilization methods for containers used in aseptic filling and packaging of liquid beverages, foods, pharmaceuticals, and the like include chemicals such as hydrogen peroxide and peracetic acid, heat such as steam, and radiation irradiation such as gamma plugs and electron beams. Among them, when sterilizing a packaging container in an aseptic filling and packaging machine, an agent such as hydrogen peroxide or peracetic acid is often used.
[0003]
Containers used for aseptic filling and packaging to which the above-mentioned sterilization method is applied include plastic bottles made of ordinary polyethylene terephthalate resin (PET bottles), cups made of polystyrene resin (PS cups), and plastic films mainly composed of paper. Paper containers (paper packs), metal cans and glass bottles.
[0004]
In the case of containers such as PET bottles and PET cups, PS bottles and PS cups, and paper packs, if a chemical such as hydrogen peroxide or peracetic acid is used, the adsorbing action of the resin surface on the inner surface of the container causes the post-sterilization adhered to the inner surface of the container. There is a problem that agents such as hydrogen peroxide and peracetic acid cannot be sufficiently removed and remain on the inner surface of the container.
[0005]
Further, in order to remove the sterilizing agent remaining on the inner surface of the container, a simple method by spraying with hot air or the like cannot be sufficiently removed, and a large-scale cleaning apparatus such as a cleaning operation with sterile water is required.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to sterilize a container using a drug such as hydrogen peroxide or peracetic acid in an aseptic filling and packaging system for liquid beverages, foods, pharmaceuticals, and the like, so that the sterilized drug hardly remains on the inner surface of the container. It is in.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is a sterile filling container characterized in that an inorganic compound vapor-deposited film for preventing adsorption of a sterilizing agent is provided on the innermost surface of a container used for aseptic filling and packaging.
[0008]
The invention according to claim 2 of the present invention is the aseptic filling container according to claim 1, wherein the innermost surface of the container is a polyethylene terephthalate resin or a polystyrene resin.
[0009]
The invention according to claim 3 of the present invention is the aseptic filling container according to claim 1 or 2, wherein the inorganic compound vapor-deposited film is a silicon oxide vapor-deposited film formed by a chemical vapor deposition method. Aseptic filling container.
[0010]
According to a fourth aspect of the present invention, there is provided the sterile-filled container according to any one of the first to third aspects, wherein a chemical used for sterilizing the container is a sterilizing agent containing hydrogen peroxide or peracetic acid as a main component. An aseptic filling container characterized by being an agent.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
BEST MODE FOR CARRYING OUT THE INVENTION In the following, an embodiment of the aseptic filling container of the present invention will be described in detail. FIG. 1 is a side sectional view of the aseptic filling container A of the present invention. , An inorganic compound deposited film 2 is provided.
[0012]
The inorganic compound vapor-deposited film 2 is formed into an appropriate container shape such as a bottle shape, a cup shape, or a tray shape, and then the container outer wall portion 1 is loaded into a chamber of a chemical vapor deposition apparatus, and the container outer wall portion loaded into the chamber. A vapor deposition gas for forming a vapor-deposited film of an inorganic compound is supplied from a filling port 3 for filling the contents of the package with a supply nozzle (not shown) or the like into the inside of the container 1 to form a container outer wall 1. An inorganic compound deposited film 2 is formed on the inner surface.
[0013]
As the inorganic compound vapor-deposited film 2, for example, a silicon oxide vapor-deposited film formed by chemical vapor deposition (CVD) using a silane compound gas obtained by heating and gasifying a silane compound monomer and oxygen is suitable. .
[0014]
The aseptic filling container of the present invention is capable of aseptically filling and packaging predetermined contents by a general ordinary aseptic filling and packaging machine.
[0015]
FIG. 2 is a schematic diagram of a sterilizing apparatus for sterilizing the aseptic filling container A of the present invention, and a chemical vaporizing chamber 10 for heating and vaporizing a sterilizing agent such as hydrogen peroxide or peracetic acid as a sterilizing agent a. And a feed pipe section 20 for feeding the vaporized sterilizing agent a, and a chemical supply port 30 for supplying the vaporized sterilizing agent a to the aseptic filling container A.
[0016]
A supply nozzle 11 that supplies a sterilizing agent a such as hydrogen peroxide or peracetic acid into the vaporization chamber 10 and a heating unit that heats and vaporizes the agent a supplied into the vaporization chamber 10 are provided in the vaporization chamber 10. A section 12 (heating heater) is provided.
[0017]
The vaporized sterilizing agent a is supplied from the vaporizing chamber 10 to the supply port 30 through the flow pipe section 20, and the aseptic filling container A is sterilized by the vaporized sterilizing agent a supplied from the supply port 30. You.
[0018]
On the inner surface of the aseptic filling container A, the vaporized sterilizing agent a used for the sterilization treatment is agglomerated due to the temperature drop and adheres and remains, but the sterilizing agent a is the inorganic compound vapor-deposited film 2 on the inner surface of the container A. Will not be adsorbed to
[0019]
FIG. 3 shows a sterilization step (I) of sterilizing the sterile filled container A of the present invention by the sterilizer shown in FIG. 2 and removing the sterilizing agent a remaining inside the sterile filled container A after the sterilization process. It is a schematic diagram of a sterilization drying apparatus explaining a drying step (II) for drying.
[0020]
As shown in FIG. 3, the aseptic filling container A of the present invention is introduced into the sterilization step (I) by the container conveying means 40 such as a bucket, a conveyor belt, and a conveyor roller, and the medicine supply port 30 of the sterilization apparatus shown in FIG. The sterilizing agent a vaporized from above is sprayed into the inside of the container A for sterilization.
[0021]
Subsequently, the container A subjected to the sterilization treatment is introduced into the drying step (II) provided with the hot air injection unit 50 by the container conveying unit 40.
[0022]
The hot air injection means 50 includes an air blower 51, a sterilization filter section 52, and a heating heater section 53 connected by an air flow pipe 54, and compressed air b supplied by the air blower 51 is supplied to the sterilization filter section 52. Is sterilized, and is heated by the heater section 53 to be aseptic hot air c.
[0023]
A distribution pipe 55 is connected to the end of the air flow pipe 54 along the direction in which the containers A conveyed by the container conveyance means 40 are arranged in the transport direction. Air c is supplied.
[0024]
In the distribution pipe 55, a plurality of hot air jet nozzles N 1 , N 2 , which jet sterile hot air c toward the inside of the filling port 3 (container opening) of the container A in the transport arrangement direction of the container A, respectively. N 3 ,... N n . Each of the nozzles N 1 , N 2 , N 3 ,..., N n may have a swing drive mechanism that can automatically change the length of the nozzle and the air injection angle as appropriate. Each nozzle blows the sterilizing agent a remaining on the inner surface of the container A by the jet force of the aseptic hot air c by changing the swing of the air jet height and the angular attitude after entering the inside of the container A, and by the heat, It can be evaporated to dryness.
[0025]
Hot air injection nozzle N 1, N 2, N 3 , ··· N n is towards the interior of each container A carried by the container transporting unit 40, by injecting repetitive sterile hot air c, each vessel A The germicidal agent a, which is not adsorbed on the inner surface of the inorganic compound vapor deposition film 2 without being adsorbed, is blown off to the outside of the container A by the jetting force of the air c and heat, evaporated, dried and removed.
[0026]
Hereinafter, specific examples of the aseptic filling container of the present invention will be described.
[0027]
<Example 1>
A PET bottle (fillable volume 200 ml) made of polyethylene terephthalate resin is used as the container A used for aseptic filling and packaging, and in order to prevent the sterilizing agent from adsorbing to the innermost surface (the surface in contact with the contents) of the container, A silicon oxide vapor-deposited film was formed on the innermost surface of the container A by a chemical vapor deposition method, thereby producing aseptic filling containers A (9) of the present invention.
[0028]
Next, in the sterilization step (I), the nine aseptic filled containers A of the present invention were sterilized in a sterilization apparatus (heater temperature for steam 300 ° C., hydrogen peroxide vapor spray (Volume of 0.5 ml / sec), and hydrogen peroxide vapor was sprayed on the inner surface of the container A for sterilization.
[0029]
Subsequently, each sterilized container A was passed through a hot air drying device (hot air for drying) in the drying step (II) to dry hydrogen peroxide adhering to the inner surface of the container A, thereby performing a sterilization treatment. In the drying step (II), the nine containers A were divided into three sets of three, and the set value of the drying hot air temperature of the drying device of the first set of containers A was set to 40 ° C. The second set was divided into 80 ° C and the third set at 120 ° C. The residual amount of hydrogen peroxide on the inner surface of each container A after the sterilization treatment was measured by filling the container A after the sterilization treatment with 200 ml of distilled water by measuring the amount of hydrogen peroxide in the distilled water using an oxygen electrode method. Was measured.
[0030]
<Example 2>
In the same manner as in Example 1, a PET bottle (fillable volume: 200 ml) made of polyethylene terephthalate resin was used as the container A for aseptic filling and packaging, and the sterilizing agent was adsorbed on the innermost surface (the surface in contact with the contents) of the container. To prevent this, a silicon oxide vapor-deposited film was formed on the innermost surface of the container A by a chemical vapor deposition method, thereby producing aseptic filling containers A (9 pieces) of the present invention.
[0031]
Next, a disinfectant was prepared by diluting a peracetic acid-based disinfectant containing 20% of hydrogen peroxide and 9% of peracetic acid with distilled water to a concentration of 4%, and the disinfectants were prepared in nine containers. A was filled in full and left for 4 minutes, after which the germicide in each container A was discharged.
[0032]
Subsequently, each sterilized container A is passed through a hot air drying device (dry air for drying) in the drying step (II) in the same manner as in Example 1 to dry hydrogen peroxide adhering to the inner surface of each container A. And sterilized. In the drying step (II), the nine containers A were divided into three sets as three sets in the same manner as in the first embodiment. The set value of the air temperature was 40 ° C, the second set was 80 ° C, and the third set was 120 ° C. Further, the measurement of the residual amount of hydrogen peroxide on the inner surface of each container A after the sterilization treatment was performed by measuring the amount of hydrogen peroxide in the distilled water after filling 25 ml of distilled water into the container A after the sterilization treatment. It was measured by the electrode method.
[0033]
<Comparative Example 1>
As containers A used for aseptic filling and packaging, nine PET bottles (fillable volume 200 ml) made of untreated polyethylene terephthalate resin and not formed with a silicon oxide deposited film on the innermost surface of container A were prepared.
[0034]
Next, in the sterilization step (I), each of the nine untreated inner containers A was sterilized in a sterilization step (I) using 35% steam of hydrogen peroxide as a sterilant (heater temperature for steam 300 ° C, a hydrogen peroxide vapor spray amount of 0.5 ml / sec), and sterilized by spraying hydrogen peroxide vapor on the inner surface of the container A, and then sterilizing each container A in the same manner as in Example 1. In the drying step (II), the solution was passed through a hot air drying device (dry air for drying) to dry hydrogen peroxide adhering to the inner surface of the container A, thereby performing a sterilization treatment. In the drying step (II), the nine containers A were divided into three sets as three sets in the same manner as in the first embodiment. The set value of the air temperature is set to 40 ° C., the second set is set to 80 ° C., the third set is set to 120 ° C., and the residual amount of hydrogen peroxide on the inner surface of each container A after the sterilization is measured. After filling 200 ml of distilled water into the container A after the sterilization treatment, the amount of hydrogen peroxide in the distilled water was measured by an oxygen electrode method.
[0035]
<Comparative Example 2>
Nine PET bottles (fillable volume 200 ml) made of untreated polyethylene terephthalate resin and having no silicon oxide vapor-deposited film formed on the innermost surface of the container were prepared.
[0036]
Next, a bactericide was prepared by diluting a peracetic acid bactericide containing 20% of hydrogen peroxide and 9% of peracetic acid with distilled water to a concentration of 4% in the same manner as in Example 2. Was filled in the prepared nine containers and left for 4 minutes, and then the disinfectant in each container was discharged.
[0037]
Subsequently, in a drying step (II), each sterilized container was passed through a hot air drying device (dry air for drying) in the same manner as in Example 2 to dry hydrogen peroxide adhering to the inner surface of each container. A sterilization treatment was performed. In the drying step (II), nine containers were divided into three sets, each of which was a set of three, and the temperature of the hot air for drying of the drying device of the first set of the containers was set in the same manner as in Example 2. Was set in each stage of 40 ° C., the second set at 80 ° C., and the third set at 120 ° C. In addition, measurement of the residual amount of hydrogen peroxide on the inner surface of each container after sterilization was performed by filling the container after sterilization with 25 ml of distilled water and measuring the amount of hydrogen peroxide in the distilled water by an oxygen electrode method. Measured.
[0038]
<Evaluation results>
Table 1 shows the measured values (ppm) of the amount of hydrogen peroxide remaining on the inner surface of each container in Examples 1 and 2 and Comparative Examples 1 and 2. In the evaluation, ○ indicates no residual hydrogen peroxide, good without thermal deformation of the container, Δ indicates slight thermal deformation of the container, slightly good with residual hydrogen peroxide, and × indicates good residual hydrogen peroxide. To indicate failure.
[0039]
[Table 1]
Figure 2004338719
[0040]
【The invention's effect】
The aseptic filling container of the present invention uses a sterilizing agent such as hydrogen peroxide or peracetic acid in an aseptic filling and packaging system for liquid beverages, foods or pharmaceuticals because the inner surface of the container is provided with an inorganic compound vapor-deposited film. When the container is sterilized by sterilization, even if the sterilizing agent after sterilization adheres and remains on the inner surface of the container, it is not adsorbed on the inorganic compound vapor deposition film on the inner surface of the container, so that the sterilizing agent adhered to the inner surface of the container remains. It can be easily blown off to the outside of the container, evaporated, dried and removed by the sterilizing hot air jetting power and heat.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a sterile filling container of the present invention.
FIG. 2 is a schematic view of a sterilization apparatus for sterilizing a sterile filled container according to the present invention.
FIG. 3 is a schematic diagram of a sterilizing and drying treatment apparatus for drying and removing a sterilizing agent used for sterilization and sterilization of a sterile filled container according to the present invention.
[Explanation of symbols]
A: Aseptic filling container 1 ... Container outer wall 2 ... Inorganic compound vapor deposited film 3 ... Contents filling port

Claims (4)

無菌充填包装に用いる容器の最内面に、殺菌用薬剤の吸着を防止する無機化合物蒸着膜が設けられていることを特徴とする無菌充填容器。An aseptic filling container, wherein an inner surface of a container used for aseptic filling packaging is provided with an inorganic compound vapor-deposited film for preventing adsorption of a sterilizing agent. 前記容器の最内面が、ポリエチレンテレフタレート樹脂又はポリスチレン樹脂であることを特徴とする請求項1記載の無菌充填容器。The aseptic filling container according to claim 1, wherein the innermost surface of the container is a polyethylene terephthalate resin or a polystyrene resin. 前記無機化合物蒸着膜が、化学蒸着法にて成膜された酸化珪素蒸着膜であることを特徴とする請求項1又は2記載の無菌充填容器。The aseptic filling container according to claim 1, wherein the inorganic compound vapor-deposited film is a silicon oxide vapor-deposited film formed by a chemical vapor deposition method. 請求項1乃至3のいずれか1項記載の無菌充填容器において、容器の殺菌に使用する薬剤が、過酸化水素又は過酢酸を主成分とする殺菌剤であることを特徴とする無菌充填容器。The sterile filling container according to any one of claims 1 to 3, wherein the agent used for sterilizing the container is a sterilizing agent containing hydrogen peroxide or peracetic acid as a main component.
JP2003133919A 2003-05-13 2003-05-13 Aseptic filling vessel Pending JP2004338719A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005231042A (en) * 2004-02-17 2005-09-02 Dainippon Printing Co Ltd Hydrogen peroxide barrier film and laminated material using it
JP2006008206A (en) * 2004-06-28 2006-01-12 Hokkai Can Co Ltd Filling method for polyester container
JP2010260354A (en) * 2010-06-22 2010-11-18 Dainippon Printing Co Ltd Hydrogen peroxide barrier film and laminated material using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005231042A (en) * 2004-02-17 2005-09-02 Dainippon Printing Co Ltd Hydrogen peroxide barrier film and laminated material using it
JP2006008206A (en) * 2004-06-28 2006-01-12 Hokkai Can Co Ltd Filling method for polyester container
JP2010260354A (en) * 2010-06-22 2010-11-18 Dainippon Printing Co Ltd Hydrogen peroxide barrier film and laminated material using the same

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