JP4155982B2 - 液体注出ノズル、およびそれを用いた包装袋 - Google Patents
液体注出ノズル、およびそれを用いた包装袋 Download PDFInfo
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Description
硬度の高いプラスチック成形ボトル等では、被包装物の注出に伴って、それの注出量と対応する量の外気の取り込みが不可避となり、これに起因してボトル内被包装物の酸化、風味低下、外気中の塵埃、菌類等による被包装物の汚損その他が比較的早期に進行するという問題があった。そのため、最近では、上記問題点を克服するために、積層フィルムを製袋してなる軟質の包装袋を被包装物の包装容器とし、その包装袋の本体に融着接合した、これも軟質の積層フィルムからなる逆止機能付きの注出ノズルを取り付け、この注出ノズルを通じて被包装物を注出することが提案されている(特許文献1、特許文献2)。
図1は、この発明に係る液体注出ノズルの実施の形態を示す平面図である。
図中1は、液体注出ノズルを示し、この注出ノズル1は図に仮想線で示す軟質の包装袋本体2のたとえば側部の融着部で、それの内表面のシーラント層に、最外層のシーラント層、好ましくは、包装袋本体のシーラント層と同種の樹脂材料からなるシーラント層によって基端部を融着接合される。
なお、液体注出ノズル1の基端部外表面の、包装袋本体2へのこのような融着接合に当っての、ノズル内表面のシーラント層5の相互融着を防止するためには、シーラント層5、6の融点を相違させること等が有効である。
すなわち、これらによれば、一軸延伸ベースフィルム層を用いる場合に比してより高い水蒸気不透過性、ガスバリア性等を付与することができる他、液体注出ノズルの先端部分の、手指による、直線的な引裂き除去を円滑かつ容易にし、しかも、引裂き疵を、毛羽立ち等のない十分平滑なものとして、注出ノズルに、密閉封止機能をより十分に発揮させることができる。
2 包装袋本体
3、8 積層フィルム
4、9 ベースフィルム層
5、6、11 シーラント層
7 SiO2層
10 金属箔層
12 包装袋
13 シール部
Claims (7)
- 輪郭形状がともに同一の表裏2枚の積層フィルム、または中央部で表裏に折り返してなる一枚の積層フィルムを、内面側シーラント層の相互の対向姿勢の下で、基端辺を除く各辺部分を相互に融着させてなるものであって、その基端辺部分を、軟質の包装袋本体の側部上部の内表面に、最外層のシーラント層によって融着接合することによって突出させて設けられた液体注出ノズルであって、
該液体注出ノズルが、包装袋本体を傾動させて被包装物を吐出した際に、被包装物が吐出通過することによって濡れた状態となる対面する内表面同士が、注出を停止した後の該包装袋本体の起立姿勢に伴なう減圧雰囲気に晒されて、ノズル内表面に被包装物が滞留することに起因して、相互に密着することによって外気の進入を阻止する逆止機能を有すると共に、ベースフィルム層および、それを挟んで積層したそれぞれのシーラント層から形成されてなり、該シーラント層の少なくとも被包装物と接触する前記内表面側の面に抗菌手段を付与したことを特徴とする液体注出ノズル。 - 前記抗菌手段は、シーラント層を形成するフィルム中に抗菌・防かび材料を含有する抗菌・防かびフィルムを用いること、シーラント層の表面に抗菌・防かび材料を塗布して被覆したフィルムを用いること、シーラント層の表面に抗菌・防かび材料を含有するフィルムを貼り付けること、または抗菌・防かび材料をフィルムに含浸させたことであることを特徴とする請求項1に記載の液体注出ノズル。
- 前記抗菌・防かび材料が、無機系材料、酸化物光触媒材料または天然系材料のいずれか1種よりなることを特徴とする請求項2に記載の液体注出ノズル。
- 前記無機系材料が、銀、銅または亜鉛のリン酸塩系担持体、ケイ酸塩系担持体または溶解性ガラス系担持体からなることを特徴とする請求項3に記載の液体注出ノズル。
- 前記天然系材料が、ヒノキチオール系、キトサン系、カラシ抽出物系、キチン系、ワサビ抽出物系、ユーカリ抽出物系または茶抽出物系材料からなることを特徴とする請求項3に記載の液体注出ノズル。
- 前記ベースフィルム層を、エチレンビニルアルコール共重合体、ポリオレフィン、ポリアミド、ポリイミドもしくは塩化ビニリデンなどの樹脂フィルムにて構成したことを特徴とする請求項1〜5のいずれか1項に記載の液体注出ノズル。
- 前記シーラント層を、ポリエチレン層またはポリプロピレン層にて構成したことを特徴とする請求項1〜6のいずれか1項に記載の液体注出ノズル。
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| JP2005138221A JP4155982B2 (ja) | 2005-05-11 | 2005-05-11 | 液体注出ノズル、およびそれを用いた包装袋 |
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| JP2005138221A JP4155982B2 (ja) | 2005-05-11 | 2005-05-11 | 液体注出ノズル、およびそれを用いた包装袋 |
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| Publication Number | Publication Date |
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| JP2006315701A JP2006315701A (ja) | 2006-11-24 |
| JP4155982B2 true JP4155982B2 (ja) | 2008-09-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5344761B2 (ja) * | 2008-12-09 | 2013-11-20 | 株式会社悠心 | 飲料水用ダブルパック包装袋および飲料水・抽出素材共充填型包装構造体 |
| JP5470554B2 (ja) * | 2009-08-03 | 2014-04-16 | 株式会社悠心 | 液状物注出用フィルム状逆止弁およびフレキシブル包装袋 |
| JP5360573B2 (ja) * | 2009-09-02 | 2013-12-04 | 株式会社悠心 | 液状物注出用フィルム状逆止ノズル部を有するフレキシブル包装袋 |
| WO2011071173A1 (ja) * | 2009-12-07 | 2011-06-16 | 株式会社 悠心 | 飲料水用ダブルパック包装袋および飲料水・抽出素材共充填型包装構造体 |
| JP7830066B2 (ja) * | 2020-10-15 | 2026-03-16 | フタムラ化学株式会社 | 抗ウイルス性フィルム及び食品用包装袋 |
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