JP4043799B2 - Soft packaging bag - Google Patents

Description

（３）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
上記で製造した包装製品は、その包装用袋が、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、包装用容器としての機能、例えば、破袋ないし内容物の漏れ等も認められず、内容物の充填包装適性、流通適正、保存適性等に優れており、また、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れていた。
【００５２】
実施例２
（１）．基材フィルムとして、厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムを使用し、まず、上記の二軸延伸ポリエチレンテレフタレ−トフィルムを巻き取り式の真空蒸着装置の送り出しロ−ルにに装着し、次いで、これを繰り出し、その二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、アルミニウムを蒸着源に用いて、酸素ガスを供給しながら、エレクトロンビ−ム（ＥＢ）加熱方式による真空蒸着法により、下記の蒸着条件により、膜厚２００Åの酸化アルミニウムの蒸着膜を形成した。
（蒸着条件）
蒸着チャンバ−内の真空度：２×１０^-4ｍｂａｒ
巻き取りチャンバ−内の真空度：２×１０^-2ｍｂａｒ
電子ビ−ム電力：２５ｋＷ
フィルムの搬送速度：４２０ｍ／分
蒸着面：コロナ処理面
次に、上記で厚さ２００Åの酸化アルミニウムの蒸着膜を形成した直後に、その酸化アルミニウムの蒸着膜面に、グロ−放電プラズマ発生装置を使用し、パワ−９ｋｗ、酸素ガス（Ｏ₂ ）：アルゴンガス（Ａｒ）＝７．０：２．５（単位：ｓｌｍ）からなる混合ガスを使用し、混合ガス圧６×１０^-5Ｔｏｒｒで酸素／アルゴン混合ガスプラズマ処理を行って、プラズマ処理面を形成した。
次に、上記で形成した酸化アルミニウムの蒸着膜のプラズマ処理の面に、ポリウレタン系樹脂の初期縮合物に、エポキシ系のシランカップリング剤（８．０重量％）とブロッキング防止剤（１．０重量％）を添加し、十分に混練してなるプライマ−樹脂組成物を使用し、これをグラビアロ−ルコ−ト法により、膜厚０．５ｇ／ｍ² （乾燥状態）になるようにコ−ティングしてプライマ−層を形成して、バリア性基材を製造した。
（２）．次に、上記の（１）で製造したバリア性基材のプライマ−層の面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、上記の実施例１で使用した白色インキ組成物と黒色インキ組成物と全く同じ白色インキ組成物と黒色インキ組成物とを同様に使用し、グラビアロ−ルコ−ト法を用いて印刷し、各々厚さ２．０ｇ／ｍ² （乾燥状態）にコ−ティングして、白色印刷被膜と黒色印刷被膜との２層の印刷被膜層からなる光遮断性層を形成した。
次に、上記で形成した光遮断性層の面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１５μｍの二軸延伸ナイロン６フィルムを、そのコロナ処理面を対向させて重ね合わせ、しかる後、その両者をドライラミネ−トして積層した。
更に、上記で積層した二軸延伸ナイロン６フィルムの面に、コロナ放電処理を施した後、そのコロナ処理面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの低密度ポリエチレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（３）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
上記で製造した包装製品は、その包装用袋が、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、包装用容器としての機能、例えば、破袋ないし内容物の漏れ等も認められず、内容物の充填包装適性、流通適正、保存適性等に優れており、また、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れていた。
【００５３】
実施例３
（１）．基材フィルムとして、厚さ１５μｍの二軸延伸ナイロン６フィルムを使用し、これをプラズマ化学気相成長装置の送り出しロールに装着し、下記の条件で厚さ１５０Åの酸化珪素の蒸着膜を上記二軸延伸ナイロン６フィルムの一方の面に形成した。
（蒸着条件）
反応ガス混合比：ヘキサメチルジシロキサン：酸素ガス：ヘリウム＝１：１１：１０（単位：ｓｌｍ）
真空チャンバー内の真空度：５．２×１０^-6 ｍｂａｒ
蒸着チャンバー内の真空度：５．１×１０^-2 ｍｂａｒ
冷却・電極ドラム供給電力：１８ｋＷ
フィルムの搬送速度：７０ｍ／分
蒸着面：コロナ処理面
次に、上記で酸化珪素の蒸着膜を形成した二軸延伸ナイロン６フィルムの酸化珪素の蒸着膜面に、グロ−放電プラズマ発生装置を使用し、パワ−９ｋｗ、酸素ガス（Ｏ₂ ）：アルゴンガス（Ａｒ）＝７．０：２．５（単位：ｓｌｍ）からなる混合ガスを使用し、混合ガス圧６×１０^-5Ｔｏｒｒで酸素／アルゴン混合ガスプラズマ処理を行って、プラズマ処理面を形成した。
次に、上記で形成した酸化珪素の蒸着膜のプラズマ処理の面に、ポリウレタン系樹脂の初期縮合物に、エポキシ系のシランカップリング剤（８．０重量％）とブロッキング防止剤（１．０重量％）を添加し、十分に混練してなるプライマ−樹脂組成物を使用し、これをグラビアロ−ルコ−ト法により、膜厚０．５ｇ／ｍ² （乾燥状態）になるようにコ−ティングしてプライマ−層を形成して、バリア性基材を製造した。
（２）．他方、表面基材フィルムとして、厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムを使用し、そのコロナ処理面の面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、上記の実施例１で使用した白色インキ組成物と黒色インキ組成物と全く同じ白色インキ組成物と黒色インキ組成物とを同様に使用し、グラビアロ−ルコ−ト法を用いて印刷し、各々厚さ２．０ｇ／ｍ² （乾燥状態）にコ−ティングして、白色印刷被膜と黒色印刷被膜との２層の印刷被膜層からな光遮断性層を形成した。
次に、上記で形成した光遮断性層の面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、上記の（１）で製造したバリア性基材のプライマ−剤層の面を対向させて、その両者をドライラミネ−トした。
更に、上記でドライラミネ−トしたバリア性基材を構成する厚さ１５μｍの二軸延伸ナイロン６フィルムの面に、コロナ放電処理を施した後、そのコロナ処理面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの低密度ポリエチレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（３）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
上記で製造した包装製品は、その包装用袋が、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、包装用容器としての機能、例えば、破袋ないし内容物の漏れ等も認められず、内容物の充填包装適性、流通適正、保存適性等に優れており、また、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れていた。
【００５４】
実施例４
上記の実施例１において、ヒ−トシ−ル性樹脂層として、厚さ１００μｍの低密度ポリエチレンフィルムを使用する代りに、厚さ１００μｍの未延伸ポリプロピレンフィルムを使用し、それ以外は、上記の実施例１と全く同様にして、同様な結果を得た。
【００５５】
実施例５
上記の実施例２において、ヒ−トシ−ル性樹脂層として、厚さ１００μｍの低密度ポリエチレンフィルムを使用する代りに、厚さ１００μｍの未延伸ポリプロピレンフィルムを使用し、それ以外は、上記の実施例２と全く同様にして、同様な結果を得た。
【００５６】
実施例６
上記の実施例３において、ヒ−トシ−ル性樹脂層として、厚さ１００μｍの低密度ポリエチレンフィルムを使用する代りに、厚さ１００μｍの未延伸ポリプロピレンフィルムを使用し、それ以外は、上記の実施例３と全く同様にして、同様な結果を得た。
【００５７】
実施例７
（１）．基材フィルムとして、厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムを使用し、まず、上記の２軸延伸ポリエチレンテレフタレ−トフィルムを巻き取り式の真空蒸着装置の送り出しロ−ルにに装着し、次いで、これを繰り出し、その二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、アルミニウムを蒸着源に用いて、酸素ガスを供給しながら、エレクトロンビ−ム（ＥＢ）加熱方式による真空蒸着法により、下記の蒸着条件により、膜厚２００Åの酸化アルミニウムの蒸着膜を形成した。
（蒸着条件）
蒸着チャンバ−内の真空度：２×１０^-4ｍｂａｒ
巻き取りチャンバ−内の真空度：２×１０^-2ｍｂａｒ
電子ビ−ム電力：２５ｋＷ
フィルムの搬送速度：４２０ｍ／分
蒸着面：コロナ処理面
次に、上記で厚さ２００Åの酸化アルミニウムの蒸着膜を形成した直後に、その酸化アルミニウムの蒸着膜面に、グロ−放電プラズマ発生装置を使用し、パワ−９ｋｗ、酸素ガス（Ｏ₂ ）：アルゴンガス（Ａｒ）＝７．０：２．５（単位：ｓｌｍ）からなる混合ガスを使用し、混合ガス圧６×１０^-5Ｔｏｒｒで酸素／アルゴン混合ガスプラズマ処理を行って、プラズマ処理面を形成した。
次に、上記で形成した酸化アルミニウムの蒸着膜のプラズマ処理の面に、ポリウレタン系樹脂の初期縮合物に、エポキシ系のシランカップリング剤（８．０重量％）とブロッキング防止剤（１．０重量％）を添加し、十分に混練してなるプライマ−樹脂組成物を使用し、これをグラビアロ−ルコ−ト法により、膜厚０．５ｇ／ｍ² （乾燥状態）になるようにコ−ティングしてプライマ−層を形成して、バリア性基材を製造した。
（２）．次に、上記の（１）で製造したバリア性基材のプライマ−層の面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、上記の実施例１で使用した白色インキ組成物と黒色インキ組成物と全く同じ白色インキ組成物と黒色インキ組成物とを同様に使用し、グラビアロ−ルコ−ト法を用いて印刷し、各々厚さ２．０ｇ／ｍ² （乾燥状態）にコ−ティングして、白色印刷被膜と黒色印刷被膜との２層の印刷被膜層からな光遮断性層を形成した。
次に、上記で形成した光遮断性層の面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１００μｍの未延伸ポリプロピレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（３）．次いで、上記で製造した積層材の２枚を用意し、その未延伸ポリプロピレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
上記で製造した包装製品は、その包装用袋が、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、包装用容器としての機能、例えば、破袋ないし内容物の漏れ等も認められず、内容物の充填包装適性、流通適正、保存適性等に優れており、また、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れていた。
【００５８】
実施例８
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムを使用し、これをプラズマ化学気相成長装置の送り出しロ−ルに装着し、次いで、下記に示す条件で、上記の二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、厚さ２００Åの酸化珪素の蒸着膜を形成した。
（蒸着条件）
蒸着面；コロナ処理面
導入ガス量；ヘキサメチルジシロキサン：酸素ガス：ヘリウム＝１．０：３．０：３．０（単位：ｓｌｍ）
真空チャンバ−内の真空度；２〜６×１０^-6ｍＢａｒ
蒸着チャンバ−内の真空度；２〜５×１０^-3ｍＢａｒ
冷却・電極ドラム供給電力；１０ｋＷ
ライン速度；１００ｍ／ｍｉｎ
次に、上記で膜厚２００Åの酸化珪素の蒸着膜を形成した直後に、その酸化珪素の蒸着膜面に、グロ−放電プラズマ発生装置を使用し、パワ−９ｋｗ、酸素ガス（Ｏ₂ ）：アルゴンガス（Ａｒ）＝７．０：２．５（単位：ｓｌｍ）からなる混合ガスを使用し、混合ガス圧６×１０^-5Ｔｏｒｒで酸素／アルゴン混合ガスプラズマ処理を行って、酸化珪素の蒸着膜面の表面張力を５４ｄｙｎｅ／ｃｍ以上向上させてたプラズマ処理面を形成した。
更に、上記で形成したプラズマ処理面に、ポリウレタン系樹脂の初期縮合物に、エポキシ系のシランカップリング剤（８．０重量％）とブロッキング防止剤（１．０重量％）を添加し、十分に混練してなるポリウレタン系樹脂組成物を使用し、これをグラビアロ−ルコ−ト法により、膜厚０．５ｇ／ｍ² （乾燥状態）になるようにコ−ティングし、次いで、乾燥してプライマ−剤層を形成して、バリア性基材を製造した。
（２）．次に、上記の（１）で製造したバリア性基材のプライマ−層の面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、上記の実施例１で使用した白色インキ組成物と黒色インキ組成物と全く同じ白色インキ組成物と黒色インキ組成物とを同様に使用し、グラビアロ−ルコ−ト法を用いて印刷し、各々厚さ２．０ｇ／ｍ² （乾燥状態）にコ−ティングして、白色印刷被膜と黒色印刷被膜との２層の印刷被膜層からな光遮断性層を形成した。
次に、上記で形成した光遮断性層の面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１００μｍの未延伸ポリプロピレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（３）．次いで、上記で製造した積層材の２枚を用意し、その未延伸ポリプロピレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
上記で製造した包装製品は、その包装用袋が、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、包装用容器としての機能、例えば、破袋ないし内容物の漏れ等も認められず、内容物の充填包装適性、流通適正、保存適性等に優れており、また、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れていた。
【００５９】
比較例１
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１５μｍの二軸延伸ナイロン６フィルムをドライラミネ−トして積層した。
次に、上記で積層した厚さ１５μｍの二軸延伸ナイロン６フィルムの面に、コロナ放電処理を施した後、そのコロナ処理面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ７μｍのアルミニウム箔をドライラミネ−トして積層し、更に、上記で積層したアルミニウム箔の面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの低密度ポリエチレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（２）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
【００６０】
比較例２
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ４００Åのアルミニウム蒸着膜を有する厚さ１５μｍの二軸延伸ナイロン６フィルムを、そのアルミニウム蒸着膜の面を外側に向けて対向させて、その両者をドライラミネ−トして積層した。
次に、上記で積層した厚さ４００Åのアルミニウム蒸着膜を有する厚さ１５μｍの二軸延伸ナイロン６フィルムのコロナ処理面の面に、（コロナ放電処理を施した後、そのコロナ処理面に）、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの低密度ポリエチレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（２）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
【００６１】
比較例３
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１５μｍのエチレン−酢酸ビニル共重合体のケン化物フィルムをドライラミネ−トして積層した。
次に、上記で積層した厚さ１５μｍのエチレン−酢酸ビニル共重合体のケン化物フィルムの面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１５μｍの二軸延伸ナイロン６フィルムをドライラミネ−トして積層し、更に、上記で積層した厚さ１５μｍの二軸延伸ナイロン６フィルムの面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの低密度ポリエチレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（２）．次いで、上記で製造した積層材の２枚を用意し、その低密度ポリエチレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
【００６２】
比較例４
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１５μｍの二軸延伸ナイロン６フィルムをドライラミネ−トして積層した。
次に、上記で積層した厚さ１５μｍの二軸延伸ナイロン６フィルムの面に、コロナ放電処理を施した後、そのコロナ処理面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ７μｍのアルミニウム箔をドライラミネ−トして積層し、更に、上記で積層したアルミニウム箔の面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの未延伸ポリプロピレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（２）．次いで、上記で製造した積層材の２枚を用意し、その未延伸ポリプロピレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
【００６３】
比較例５
（１）．厚さ１２μｍの二軸延伸ポリエチレンテレフタレ−トフィルムのコロナ処理面に、通常のグラビアインキ組成物を使用し、グラビア印刷方式で所望の印刷模様を形成した後、その印刷模様を含む全面に、２液硬化型のポリウレタン系ラミネ−ト用接着剤をグラビアロ−ルコ−ト法を用いて厚さ４．０ｇ／ｍ² （乾燥状態）にコ−ティングしてラミネ−ト用接着剤層を形成し、次いで、該ラミネ−ト用接着剤層面に、厚さ１５μｍのエチレン−酢酸ビニル共重合体のケン化物フィルムをドライラミネ−トして積層した。
次に、上記で積層した厚さ１５μｍのエチレン−酢酸ビニル共重合体のケン化物フィルムの面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１５μｍの二軸延伸ナイロン６フィルムをドライラミネ−トして積層し、更に、上記で積層した厚さ１５μｍの二軸延伸ナイロン６フィルムの面に、上記と同様にして、ラミネ−ト用接着剤層を形成し、しかる後、上記のラミネ−ト用接着剤層面に、厚さ１００μｍの未延伸ポリプロピレンフィルムをドライラミネ−トして積層して、積層材を製造した。
（２）．次いで、上記で製造した積層材の２枚を用意し、その未延伸ポリプロピレンフィルムの面を対向して重ね合わせ、しかる後、その外周周辺の端部を三方ヒ−トシ−ルしてシ−ル部を形成すると共に上方に開口部を有する三方シ−ル型の軟包装用袋を製造した。
上記で製造した三方シ−ル型の軟包装用袋内に、その開口部からドレッシングを充填包装し、しかる後、その開口部の端部をヒ−トシ−ルして上方シ−ル部を形成して包装製品を製造した。
【００６４】
実験例
上記の実施例１〜８、および、比較例１〜５において製造した積層材およびそれを使用して製造した軟包装袋について、下記に示す評価項目を測定した。
（１）．遮光性の測定
これは、上記の実施例１〜８、および、比較例１〜５において製造した軟包装袋を構成する積層材について、スガ試験機株式会社製、機種名、ＳＭカラ−コンピュ−タ−にて全光線透過率を測定して評価した。
（２）．酸素透過度の測定
これは、上記の実施例１〜８、および、比較例１〜５において製造した積層材について、温度２３℃、湿度９０％ＲＨの条件で、米国、モコン（ＭＯＣＯＮ）社製の測定機〔機種名、オクストラン（ＯＸＴＲＡＮ）〕にて測定した。
（３）．水蒸気透過度の測定
これは、上記の実施例１〜８、および、比較例１〜５において製造した積層材について、温度４０℃、湿度９０％ＲＨの条件で、米国、モコン（ＭＯＣＯＮ）社製の測定機〔機種名、パ−マトラン（ＰＥＲＭＡＴＲＡＮ）〕にて測定した。
（４）．ピンホ−ルの測定
これは、上記の実施例１〜８、および、比較例１〜５で製造した軟包装袋について、ゲルボ試験機を用いて、３度、２０００回実施して、軟包装袋を構成する積層材について、ピンホ−ルの数を数えて測定した。
（５）．官能性の測定
これは、上記の実施例１〜８、および、比較例１〜５で製造した軟包装袋にドレッシングを充填包装し、それを４０℃のオ−ブンに1日間保存し、次いで、袋を開封し、５ 人の試験者に臭いの有無を確認して測定し、◎は、殆ど臭わない、○は、少し臭う、△は、臭う、×は、かなり臭うを表す。
上記の測定結果について、下記の表１に示す。
【００６５】

上記の表１において、酸素透過度の単位は、〔ｃｃ／ｍ² ／ｄａｙ ２３℃・９０％ＲＨ〕であり、水蒸気透過度の単位は、〔ｇ／ｍ² ／ｄａｙ・４０℃・９０％ＲＨ〕であり、ピンホ−ル数は、個／Ａ４サイズである。
【００６６】
上記の表１に示す測定結果から明らかなように、実施例１〜８にかかるものは、光遮断性、酸素透過度および水蒸気透過度において十分に実用性を有するものであることが確認され、また、耐ピンホ−ル性、保香性等においても優れているものであった。
これに対し、比較例１、２、４にかかるものは、光遮断性、酸素透過度および水蒸気透過度において優れ、また、耐ピンホ−ル性、保香性等においても優れているが、耐ピンホ−ル性に若干欠けるものであり、また、比較例３、５にかかるものは、酸素透過度、水蒸気透過度、耐ピンホ−ル性等において優れているが、光遮断性に著しく欠け、また、保香性においても十分に満足し得るものではなかった。
【００６７】
【発明の効果】
以上の説明で明らかなように、本発明は、まず、例えば、上記の樹脂フィルム等からなる基材フィルムの一方の面に、酸化アルミニウム、酸化珪素等の無機酸化物の蒸着膜も設けてバリア性基材を製造し、次いで、該バリア性基材を構成する酸化アルミニウム、酸化珪素等の無機酸化物の蒸着膜の面を、例えば、コロナ放電処理、プラズマ処理等の前処理を施した後、例えば、ポリウレタン系樹脂またはポリエステル系樹脂をビヒクルの主成分とするプライマ−剤によるプライマ−剤層を形成し、次いで、該プライマ−剤層の上に、所望の印刷模様層を設け、しかる後、該印刷模様層を含む全面に、白色インキ組成物による白色印刷被膜層と黒色インキ組成物による黒色印刷被膜層との２層からなる光遮断性層を設け、更に、上記の光遮断性層を構成する白色印刷被膜層を、上記の印刷模様層の下地層を兼ねさせ、次に、上記の黒色印刷被膜層の上に、ヒ−トシ−ル性樹脂層を積層して、包装用材料としての積層材を製造し、次いで、該積層材を使用し、これを製袋して軟包装袋を製造し、しかる後、該軟包装袋に所望の飲食料品等の内容物を充填包装して包装製品を製造して、強度等を有し、かつ、耐侯性、耐熱性、耐水性、ヒ−トシ−ル性、耐ピンホ−ル性、耐突き刺し性、その他等の諸物性に優れ、特に、酸素ガス、水蒸気等の透過を阻止するバリア性に優れると共に光遮断性に優れ、例えば、太陽あるいは蛍光灯等による太陽光あるいは蛍光等の透過を阻止し、内容物が、分解ないし変質し、あるいは、褪色、その他等の光劣化を引き起こすということを防止し、内容物の充填包装適性、保存適性等を有し、更に、使用後に焼却廃棄処理する際に有害物質等を発生することなく、廃棄処理適性、環境適性等に極めて優れた軟包装袋を製造し得ることができるというものである。
【図面の簡単な説明】
【図１】本発明にかかる軟包装を構成する積層材についてその一例の層構成を示す概略的断面図である。
【図２】本発明にかかる軟包装を構成する積層材についてその一例の層構成を示す概略的断面図である。
【図３】本発明にかかる軟包装を構成する積層材についてその一例の層構成を示す概略的断面図である。
【図４】本発明にかかる軟包装を構成する積層材についてその一例の層構成を示す概略的断面図である。
【図５】本発明にかかる軟包装を構成する積層材についてその一例の層構成を示す概略的断面図である。
【図６】図１に示す積層材を使用し、これを製袋して製造した本発明にかかる軟包装袋の構成を示す概略的斜視図である。
【図７】図６本発明にかかる軟包装袋を使用し、これに内容物を充填包装した包装製品の構成を示す概略的斜視図である。
【図８】巻き取り式真空蒸着装置についてその一例の概要を示す概略的構成図である。
【図９】プラズマ化学気相成長装置についてその一例の概要を示す概略的構成図である。
【符号の説明】
１ 基材フィルム
２ 無機酸化物の蒸着膜
３ バリア性基材
４ 光遮断性層
５ ヒ−トシ−ル性樹脂層
６ 前処理層
７ プライマ−剤層
８ 印刷模様層
９ 中間基材
１０ 表面基材フィルム
Ａ、Ａ₁、Ａ₂ 積層材
Ｂ 軟包装袋
Ｃ 包装製品[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flexible packaging bag, and more particularly, has strength and the like, and has such as weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, and the like. Excellent physical properties, especially excellent barrier properties to prevent permeation of oxygen gas, water vapor, etc., excellent light blocking properties, filling and wrapping contents, storage suitability, etc., and incineration disposal after use The present invention relates to a flexible packaging bag that is extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances.
[0002]
[Prior art]
Conventionally, for example, various foods and beverages such as food and drink, fruit juice, juice, drinking water, liquor, cooked food, marine products, frozen food, meat products, boiled foods, rice cakes, liquid soup, seasonings, etc. In order to fill and package liquid detergents, cosmetics, chemical products, and other articles, substrates such as plastic films, metal foils, cellophane, etc. are arbitrarily laminated to form packaging materials in various forms. Materials have been developed and proposed.
Thus, in recent years, in the above laminated material, as a barrier substrate constituting the same, a vapor deposition film of an inorganic oxide such as aluminum oxide or silicon oxide is also provided on one surface of a base film made of a resin film or the like. Attention has been paid to a barrier substrate having a provided structure, and various forms have been developed and proposed.
This product has excellent barrier properties to prevent the permeation of oxygen gas, water vapor, etc. and has excellent transparency, and is suitable for disposal without generating harmful substances when incinerated after disposal. It is excellent in environmental suitability and the like, and its uses are developed in various fields, and the demand is expanding.
[0003]
[Problems to be solved by the invention]
However, as a barrier substrate, a barrier substrate having a structure in which a vapor-deposited film of an inorganic oxide such as aluminum oxide or silicon oxide is provided on one surface of a substrate film made of the above resin film or the like is used. The laminate is arbitrarily laminated with another base material to produce a desired laminated material, and then the laminated material is used, and the bag is produced to produce a bag-like container body. When manufacturing a packaged product by filling and packaging contents such as desired food and drink in the container body, one side of the base film made of the above resin film or the like is coated with an inorganic oxide such as aluminum oxide or silicon oxide. Since the barrier substrate made of a structure provided with a vapor deposition film is transparent, it transmits, for example, sunlight or fluorescence from the sun or a fluorescent lamp, and the transmitted light affects the contents. For example, disassemble the contents Stone altered, or fading, there is a problem that causes photodegradation of the other like.
For this reason, there is a method of blocking light transmission by using, for example, an aluminum foil or an aluminum vapor deposition film in combination with the above-mentioned barrier base material, and in this case, aluminum is prevented. Foil, aluminum vapor deposition film, etc. are extremely useful because they have barrier properties that block the transmission of oxygen gas, water vapor, etc., and also have light blocking properties, but aluminum foil and the like lack flex resistance. Therefore, there is a problem that pinholes are easily generated and the barrier property thereof is remarkably impaired. Further, after being used as a packaging container, when it is disposed of as garbage, for example, it is disposed of by incineration or the like. If the metal such as aluminum remains, it may damage the incinerator, and it is not suitable for disposal and causes problems such as environmental destruction. It is not preferable from the fact that there is a cormorant problem.
In addition, for example, a colored substrate is combined with a barrier base material having a structure in which a vapor deposition film of an inorganic oxide such as aluminum oxide or silicon oxide is provided on one surface of a base film made of the above resin film or the like. However, in this case, the vapor-deposited film of inorganic oxide such as aluminum oxide or silicon oxide that constitutes the above-mentioned barrier base material is inorganic. And it is made of vitreous and is extremely inactive. Therefore, even if a colored layer is simply provided on the surface of a vapor-deposited film of an inorganic oxide such as aluminum oxide or silicon oxide, Lack of affinity, etc., inferior in tight adhesion, for example, a phenomenon such as delamination occurs between the layers, and the laminated material including the above-mentioned barrier substrate and colored layer is no longer a packaging container Packaging materials Function as the Eze, is that no use things.
Therefore, the present invention has strength and the like and is excellent in various physical properties such as weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, and the like. It has excellent barrier properties to block the transmission of gas, water vapor, etc., has excellent light blocking properties, has the ability to fill and pack contents, and is suitable for storage, and generates harmful substances when incinerated after use. It is to provide a flexible packaging bag that is extremely excellent in disposal processing suitability, environmental suitability, and the like.
[0004]
[Means for Solving the Problems]
As a result of various studies to solve the above problems, the present inventor first, for example, an inorganic oxide such as aluminum oxide or silicon oxide on one surface of a base film made of the above resin film or the like. A vapor-deposited film is also provided to produce a barrier substrate, and then the surface of the vapor-deposited film of an inorganic oxide such as aluminum oxide or silicon oxide constituting the barrier substrate is subjected to, for example, corona discharge treatment, plasma treatment, etc. For example, a primer layer made of a primer agent containing a polyurethane resin or a polyester resin as a main component of a vehicle is formed, and then a desired printing is performed on the primer agent layer. A pattern layer is provided, and then a light-blocking layer consisting of a white print film layer made of a white ink composition and a black print film layer made of a black ink composition is provided on the entire surface including the print pattern layer. Further, the white printed film layer constituting the light blocking layer is also used as the underlayer of the printed pattern layer, and then the heat-sealable resin layer is formed on the black printed film layer. Are laminated to produce a laminated material as a packaging material, and then the laminated material is used, and a bag is produced to produce a flexible packaging bag. When packaging products are manufactured by filling and wrapping the contents of products, etc., they have strength, etc., and have weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. Excellent physical properties such as other, especially excellent barrier properties to block the transmission of oxygen gas, water vapor, etc. and excellent light blocking properties, for example, blocking the transmission of sunlight or fluorescence by the sun or fluorescent lamps, etc. , The contents are decomposed or altered, or light degradation such as discoloration, etc. It has excellent suitability for disposal, environmental suitability, etc. without generating harmful substances when incinerated and discarded after use. The present invention has been completed by finding that a flexible packaging bag can be produced.
[0005]
That is, the present invention comprises at least three layers of a barrier base material provided with an inorganic oxide vapor-deposited film on one surface of the base film, a light blocking layer, and a heat seal resin layer, At least four layers of a barrier substrate provided with an inorganic oxide vapor deposition film on one surface of the substrate film, a light blocking layer, an intermediate substrate, and a heat seal resin layer, or 4 layers of at least a surface base film, a light blocking layer, a barrier base material provided with an inorganic oxide vapor-deposited film on one surface of the base film, and a heat seal resin layer The present invention relates to a flexible packaging bag characterized in that a laminated material obtained by sequentially laminating is formed into a bag.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the flexible packaging bag according to the present invention will be described in more detail with reference to the drawings.
First, the layer configuration of the laminated material constituting the flexible packaging bag according to the present invention will be described with reference to the drawings by illustrating a few examples. FIGS. 1, 2, 3, 4, 5, and 6 will be described. FIG. 7 is a schematic cross-sectional view showing the layer structure of a few examples of the laminated material constituting the flexible packaging bag according to the present invention, and FIGS. 7 and 8 use the laminated material shown in FIG. It is a schematic perspective view which shows the structure of the example about the soft packaging bag concerning this invention manufactured by bag making.
[0007]
First, as the laminated material A constituting the flexible packaging bag according to the present invention, as shown in FIG. 1, at least a barrier group in which an inorganic oxide vapor deposition film 2 is provided on one surface of a base film 1. The basic structure is that the material 3, the light blocking layer 4, and the heat seal resin layer 5 are sequentially laminated.
Next, as a specific example of the laminated material constituting the flexible packaging bag according to the present invention, an inorganic oxide vapor deposition film 2 is provided on at least one surface of the base film 1 as shown in FIG. A barrier substrate 3, a desired pretreatment layer 6 previously provided on the surface of the inorganic oxide vapor deposition film 2 constituting the barrier substrate by corona discharge treatment or plasma treatment, and a primer made of a primer agent. -Laminate A having a configuration in which the agent layer 7, the printed pattern layer 8, the light blocking layer 4, and the heat seal resin layer 5 are sequentially laminated. ₁ Can be illustrated.
Furthermore, if another specific example is illustrated about the laminated material which comprises the flexible packaging bag concerning this invention, as shown in FIG. 3, the vapor deposition film | membrane 2 of an inorganic oxide will be provided on at least one surface of the base film 1 at least. By the provided barrier property base 3, the desired pretreatment layer 6 provided in advance by corona discharge treatment or plasma treatment on the surface of the inorganic oxide vapor deposition film 2 constituting the barrier property base, and a primer agent Laminate A having a structure in which a primer layer 7, a printed pattern layer 8, a light blocking layer 4, an intermediate substrate 9, and a heat seal resin layer 5 are sequentially laminated. ₂ Can be illustrated.
Furthermore, when another specific example is illustrated about the laminated material which comprises the soft packaging bag concerning this invention, as shown in FIG. 4, at least the surface base material 10, the printed pattern layer 8, and a light-shielding layer 4, a barrier substrate 3 provided with an inorganic oxide vapor-deposited film 2 on one surface of the substrate film 1, and a corona discharge treatment on the surface of the inorganic oxide vapor-deposited film 2 constituting the barrier substrate. Or the laminated material A which consists of the structure which laminated | stacked the desired pre-processing layer 6 previously provided by the plasma processing etc., the primer agent layer 7 by a primer agent, and the heat sealable resin layer 5 in order. _Three Can be illustrated.
[0008]
The above illustrations illustrate a few examples of the laminated material constituting the flexible packaging bag according to the present invention, and the present invention is not limited thereto.
In the present invention, in the laminated material shown in FIGS. 1 to 4, as the light blocking layer, as shown in FIG. 5, the light blocking layer 4 composed of the printed coating layer 4a of the ink composition, specifically, Is a printing film layer 4a composed of two layers, a white printing film layer 4b made of a white ink composition and a black printing film layer 4c made of a black ink composition, and further, white printing constituting the printing film layer 4a. It is desirable that the coating layer 4b is made of the light blocking layer 4 that is located opposite to the surface of the printed pattern layer 8 and that also serves as a base layer for the printed pattern layer 8.
Thus, in the present invention, the two-layer printing of the printed film layer by the ink composition as described above, specifically, the white printed film layer by the white ink composition and the black printed film layer by the black ink composition. By forming the light blocking layer from the coating layer, the printed pattern such as a desired character, symbol, pattern, figure, etc. constituting the printed pattern layer becomes clear and excellent in light blocking properties. It is possible to prevent sunlight or fluorescent light from being transmitted by a lamp, etc., and to prevent the contents from being decomposed or altered, or causing light deterioration such as discoloration, etc., and further according to the present invention. After using the flexible packaging bag as a packaging container, it does not generate harmful substances when incinerated and discarded, and is extremely excellent in disposal and environmental suitability.
[0009]
In the present invention, the laminate shown in FIGS. 1 to 4 is not shown, but further, other substrates are arbitrarily laminated depending on the purpose of use, usage, etc., and the laminates are formed in various forms. The material can be designed and manufactured.
Further, although not shown in the drawings, in the present invention, for example, with respect to the laminated material shown in FIGS. 1 to 4, the inorganic oxide vapor deposition film is not limited to a single layer film composed of a single inorganic oxide vapor deposition film. It can also be composed of a multilayer film composed of two or more layers of an inorganic oxide vapor-deposited film.
Furthermore, in the present invention, in the laminated material shown in FIG. 4, although not shown, when a barrier substrate having an inorganic oxide vapor deposition film provided on one surface of the substrate film is laminated, the barrier property is The surface of the vapor-deposited film of the inorganic oxide constituting the substrate may be laminated in either the outer side or the inner side.
[0010]
Next, in the present invention, an example of the flexible packaging bag according to the present invention, which is produced by using the laminated material as described above and manufacturing the bag, will be described. The flexible packaging bag according to the present invention As an example, a flexible packaging bag made using the laminate A shown in FIG. 1 will be described as an example. As shown in FIG. 6, two laminates A and A are prepared. The surfaces of the heat-seal resin layers 5 and 5 located in the innermost layer are overlapped with each other, and thereafter, the three sides of the outer periphery are heat-sealed to seal the seal portion. 11, 11, 11 are formed and an opening 12 is provided thereabove to produce a three-sided seal type bag-shaped container body B.
Thus, in the present invention, as shown in FIG. 7, from the opening 12 of the three-sided seal type bag-shaped container body B manufactured as described above, for example, food and drink, fruit juice, juice, From drinking water, liquor, cooked food, marine products, frozen food, meat products, boiled foods, rice cakes, liquid soup, seasonings, other foods and beverages, liquid detergents, cosmetics, chemicals, and other items Then, the end portion of the upper opening 12 was heat sealed to form the upper seal portion 14 and the like, and the flexible packaging bag B according to the present invention was used. The packaged product C having various forms can be manufactured.
In the present invention, it is needless to say that the flexible packaging bag according to the present invention is not limited to the illustrated pouch shape illustrated above. It goes without saying that flexible packaging bags having various forms such as a mold, a self-supporting mold, a gusset mold, a square bottom mold, and the like can be manufactured.
Moreover, in this invention, it cannot be overemphasized that the flexible packaging bag concerning this invention can be manufactured similarly to the above using the laminated material shown to said 2-4.
[0011]
Next, in the present invention, the materials, production methods and the like constituting the soft packaging bag according to the present invention will be described. First, as the base film forming the barrier base material constituting the soft packaging bag according to the present invention, First, weather resistance to heating, workability, etc. during bag making, because these are the basic materials that make up soft packaging bags, and also are substrates that hold inorganic oxide vapor deposition films, etc. Excellent physical properties such as heat resistance, water resistance, slip resistance, pinhole resistance, etc., and withstands the formation conditions of vapor-deposited films of inorganic oxides, etc. A resin film or sheet that can be satisfactorily maintained and can satisfy other conditions can be used.
In the present invention, specific examples of the resin film or sheet include polyolefin resins such as polyethylene resins and polypropylene resins, cyclic polyolefin resins, polystyrene resins, and acrylonitrile-styrene copolymer. Polyester such as coalescence (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), poly (meth) acrylic resin, polycarbonate resin, polyethylene terephthalate, polyethylene naphthalate Various resins such as polyamide resins, various polyamide resins such as nylon, polyurethane resins, acetal resins, cellulose resins, and the like can be used.
In the present invention, it is particularly preferable to use a polyester resin, a polyolefin resin, or a polyamide resin film or sheet among the resin films or sheets.
[0012]
In the present invention, as the above-mentioned various resin films or sheets, for example, one or more of the above-mentioned various resins are used, and an extrusion method, a cast molding method, a T-die method, a cutting method, an inflation method are used. -A method of forming the above-mentioned various resins independently using a film-forming method such as an ionization method or the like, or a method of forming a multilayer co-extrusion film using two or more types of various resins In addition, by using two or more kinds of resins, a film or sheet of various resins is manufactured by a method of mixing and forming before forming a film, and if necessary, for example, Various resin films or sheets formed by stretching in a uniaxial or biaxial direction using a tenter system, a tubular system, or the like can be used.
In the present invention, the film thickness of various resin films or sheets is preferably about 6 to 200 μm, more preferably about 9 to 100 μm.
[0013]
It should be noted that one or more of the above-mentioned various resins are used, and in forming the film, for example, film processability, heat resistance, weather resistance, mechanical properties, dimensional stability, antioxidant properties, slipperiness Various plastic compounding agents and additives can be added for the purpose of improving and modifying mold release properties, flame retardancy, antifungal properties, electrical properties, strength, etc. Can be arbitrarily added from a very small amount to several tens of percent depending on the purpose.
In the above, as a general additive, for example, a lubricant, a crosslinking agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler, a reinforcing agent, an antistatic agent, a pigment, and the like can be used. Furthermore, a modifying resin or the like can be used.
[0014]
In addition, in the present invention, the surface of various resin films or sheets may be coated with a desired surface treatment layer in advance, if necessary, in order to improve close adhesion with an inorganic oxide vapor deposition film. It can be provided.
In the present invention, as the surface treatment layer, for example, corona discharge treatment, ozone treatment, low temperature plasma treatment using oxygen gas or nitrogen gas, glow discharge treatment, oxidation treatment using chemicals, etc., For example, a corona treatment layer, an ozone treatment layer, a plasma treatment layer, an oxidation treatment layer, or the like can be formed by providing a pretreatment such as others arbitrarily.
The above-mentioned surface pretreatment is carried out as a method for improving the close adhesion between various resin films or sheets and the inorganic oxide vapor deposition film. In addition, for example, on the surface of various resin films or sheets, a primer coat agent layer, an undercoat agent layer, an anchor coat agent layer, an adhesive layer in advance. Alternatively, a surface treatment layer can be formed by arbitrarily forming a deposition anchor coating agent layer or the like.
Examples of the pretreatment coating agent layer include polyester resins, polyamide resins, polyurethane resins, epoxy resins, phenol resins, (meth) acrylic resins, polyvinyl acetate resins, A resin composition comprising a polyolefin resin such as polyethylene aly polypropylene or a copolymer or modified resin thereof, a cellulose resin, or the like as a main component of the vehicle can be used.
[0015]
Next, in the present invention, the inorganic oxide vapor deposition film forming the barrier base material constituting the flexible packaging bag according to the present invention will be described. As the inorganic oxide vapor deposition film, first, for example, vacuum vapor deposition is performed. It can be formed using a physical vapor deposition method (Physical Vapor Deposition method, PVD method) such as a sputtering method, an ion plating method, or an ion cluster beam method.
In the present invention, specifically, a metal oxide is used as a raw material, and this is heated and vapor-deposited on a base film, or a metal or metal oxide is used as a raw material, and oxygen is added. An amorphous thin film of inorganic oxide is formed using an oxidation reaction vapor deposition method in which it is introduced and oxidized to deposit on a base film, and further a plasma-assisted oxidation reaction vapor deposition method in which the oxidation reaction is supported by plasma. be able to.
In the above, as a heating method of the vapor deposition material, for example, a resistance heating method, a high frequency induction heating method, an electron beam heating method (EB), or the like can be used.
[0016]
Thus, in the present invention, as the above-mentioned inorganic oxide vapor-deposited film, basically any thin film on which a metal oxide is vapor-deposited can be used. For example, silicon (Si), aluminum (Al ), Magnesium (Mg), calcium (Ca), potassium (K), tin (Sn), sodium (Na), boron (B), titanium (Ti), lead (Pb), zirconium (Zr), yttrium (Y ) And the like can be used.
Thus, preferable examples include vapor-deposited films of metal oxides such as silicon (Si) and aluminum (Al).
Note that the metal oxide vapor deposition film can be referred to as a metal oxide such as silicon oxide, aluminum oxide, magnesium oxide, etc. _X AlO _X , MgO _X MO etc. _X (In the formula, M represents a metal element, and the value of X varies depending on the metal element.)
Moreover, as a range of said X value, silicon (Si) is 0-2, aluminum (Al) is 0-1.5, magnesium (Mg) is 0-1, calcium (Ca) is 0 to 1, potassium (K) is 0 to 0.5, tin (Sn) is 0 to 2, sodium (Na) is 0 to 0.5, boron (B) is 0 to 1, 5, Titanium (Ti) can take values in the range of 0 to 2, lead (Pb) in the range of 0 to 1, zirconium (Zr) in the range of 0 to 2, and yttrium (Y) in the range of 0 to 1.5.
In the above, when X = 0, it is a complete metal and is not transparent and cannot be used at all. The upper limit of the range of X is a completely oxidized value.
In the present invention, generally, examples other than silicon (Si) and aluminum (Al) are scarce, silicon (Si) is 1.0 to 2.0, and aluminum (Al) is 0.5. Those with values in the range of -1.5 can be used.
In the present invention, the film thickness of the inorganic oxide vapor-deposited film as described above varies depending on the type of metal or metal oxide used, but is, for example, about 50 to 4000 mm, preferably 100 to 1000 mm. It is desirable to select and form arbitrarily within the range.
In the present invention, the inorganic oxide vapor-deposited film is a metal to be used, or the metal oxide is one or a mixture of two or more, and mixed with different materials. It is also possible to constitute a vapor deposition film.
[0017]
Next, in the present invention, specific examples of the method for forming the above-described inorganic oxide vapor deposition film will be described. FIG. 8 is a schematic configuration diagram showing an example of a take-up vacuum vapor deposition apparatus.
As shown in FIG. 8, the base film 24 fed out from the unwinding roll 23 in the vacuum chamber 22 of the take-up type vacuum vapor deposition apparatus 21 is cooled through the guide rolls 25 and 26. -Guided to the tapping drum 27;
Thus, the evaporation source 29 heated by the crucible 28, for example, metal aluminum, aluminum oxide, or the like is evaporated on the base film 24 guided on the cooled coating drum 27. Further, if necessary, a vapor deposition film of an inorganic oxide such as aluminum oxide is formed through the masks 31 and 31 while supplying oxygen gas and the like from the oxygen gas outlet 30. Is.
Next, in the present invention, in the above, for example, the base film 24 on which an inorganic oxide vapor-deposited film such as aluminum oxide is formed is wound on the winding roll 34 or the like via the guide rolls 32 and 33 or the like. Thus, the base film 24 having the inorganic oxide vapor deposition film according to the present invention can be manufactured.
The above exemplification is an example, and it is needless to say that the present invention is not limited thereby.
In the present invention, the first-layer inorganic oxide vapor deposition film is first formed using the above-described take-up vacuum vapor deposition apparatus, and then the inorganic oxide vapor deposition film is formed in the same manner. Further, an inorganic oxide vapor deposition film is formed on the substrate, or by using the above-described take-up vacuum vapor deposition apparatus, these are connected in series, and the inorganic oxide vapor deposition is continuously performed. By forming the film, it is possible to form an inorganic oxide vapor-deposited film composed of two or more multilayer films.
[0018]
In the present invention, the inorganic oxide vapor deposition film can be formed by, for example, chemical vapor deposition or the like. Specifically, plasma chemical vapor deposition, thermal chemical vapor deposition, or the like can be used. It can be formed using a chemical vapor deposition method (Chemical Vapor Deposition method, CVD method) such as a growth method or a photochemical vapor deposition method.
More specifically, on one surface of the base film, an evaporation monomer gas such as an organosilicon compound is used as a raw material, and an inert gas such as argon gas or helium gas is used as a carrier gas. A vapor deposition film of an inorganic oxide such as silicon oxide can be formed by using a low temperature plasma chemical vapor deposition method using an oxygen gas or the like as an oxygen supply gas and using a low temperature plasma generator or the like.
In the above, for example, a high-frequency plasma, a pulse wave plasma, a microwave plasma, or the like can be used as the low-temperature plasma generator. Thus, in the present invention, a highly active and stable plasma is obtained. For this purpose, it is desirable to use a high-frequency plasma generator.
[0019]
Specifically, an example of the formation method of the deposited film of the inorganic oxide by the low temperature plasma chemical vapor deposition method will be described as an example. FIG. 9 shows the inorganic oxide deposited by the plasma chemical vapor deposition method. It is a schematic block diagram of the low temperature plasma chemical vapor deposition apparatus which shows the outline | summary about the formation method of a vapor deposition film.
As shown in FIG. 9 above, in the present invention, the base film 44 is fed out from the unwinding roll 43 arranged in the vacuum chamber 42 of the plasma chemical vapor deposition apparatus 41, and further the base film 44 The film 44 is conveyed on the circumferential surface of the cooling / electrode drum 46 through the auxiliary roll 45 at a predetermined speed.
Therefore, in the present invention, oxygen gas, inert gas, a monomer gas for vapor deposition such as an organosilicon compound, and the like are supplied from the gas supply devices 47 and 48 and the raw material volatilization supply device 49, and the like. The mixed gas composition for vapor deposition was introduced into the vacuum chamber 42 through the raw material supply nozzle 50 without adjusting the mixed gas composition for vapor deposition, and was conveyed onto the circumferential surface of the cooling / electrode drum 46. Plasma is generated by the glow discharge plasma 51 on the base film 44 and irradiated to form a vapor-deposited film of an inorganic oxide such as silicon oxide to form a film.
In the present invention, at that time, the cooling / electrode drum 46 is applied with a predetermined power from a power source 52 disposed outside the chamber, and a magnet 53 is provided in the vicinity of the cooling / electrode drum 46. Then, the generation of plasma is promoted, and then the base film 44 on which the deposited film of the inorganic oxide such as silicon oxide is formed is wound up via the guide roll 54 or the like. The base film which has a vapor deposition film of the inorganic oxide concerning the present invention can be manufactured.
In the figure, 56 represents a vacuum pump.
The above exemplification is an example, and it is needless to say that the present invention is not limited thereby.
Although not shown, in the present invention, the inorganic oxide vapor deposition film may be not only one layer of the inorganic oxide vapor deposition film but also a multilayer film in which two or more layers are laminated, and is used. The material may be used alone or as a mixture of two or more, and an inorganic oxide vapor deposition film mixed with different materials may be formed.
[0020]
In the above, the inside of the vacuum chamber is depressurized by a vacuum pump, and the degree of vacuum is 1 × 10. ^-1 ~ 1x10 ^-8 Torr position, preferably vacuum degree 1 × 10 ^-3 ~ 1x10 ^-7 It is desirable to prepare it at the Torr position.
In the raw material volatilization supply apparatus, the organic silicon compound as the raw material is volatilized and mixed with oxygen gas, inert gas, etc. supplied from the gas supply apparatus, and this mixed gas is supplied to the vacuum chamber through the raw material supply nozzle It is introduced in the inside.
In this case, the content of the organosilicon compound in the mixed gas is about 1 to 40%, the content of oxygen gas is about 10 to 70%, and the content of inert gas is about 10 to 60%. For example, the mixing ratio of the organosilicon compound, oxygen gas, and inert gas can be about 1: 6: 5 to 1:17:14.
On the other hand, since a predetermined voltage is applied to the cooling / electrode drum from the power source, glow discharge plasma is generated in the vicinity of the opening of the raw material supply nozzle in the vacuum chamber and the cooling / electrode drum. The glow discharge plasma is derived from one or more gas components in the mixed gas. In this state, the substrate film is conveyed at a constant speed, and the glow discharge plasma is used to cool the electrode drum peripheral surface. A vapor deposition film of an inorganic oxide such as silicon oxide can be formed on the upper base film.
The degree of vacuum in the vacuum chamber at this time is 1 × 10 ^-1 ~ 1x10 ^-Four Torr position, preferably vacuum degree 1 × 10 ^-1 ~ 1x10 ^-2 It is desirable to adjust to the Torr position, and it is desirable to adjust the substrate film conveyance speed to about 10 to 300 m / min, preferably about 50 to 150 m / min.
[0021]
In addition, in the plasma chemical vapor deposition apparatus described above, an inorganic oxide vapor deposition film such as silicon oxide is formed on a base film by oxidizing plasma source gas with oxygen gas. _X Therefore, the formed vapor-deposited film of inorganic oxide such as silicon oxide is a continuous layer having high density, few gaps, and high flexibility. The barrier property of the vapor-deposited film of inorganic oxide such as silicon is much higher than the vapor-deposited film of inorganic oxide such as silicon oxide formed by a conventional vacuum vapor deposition method, etc., and a thin film thickness is sufficient A barrier property can be obtained.
In the present invention, SiO _X Since the surface of the base film is cleaned by the plasma, and polar groups, free radicals, etc. are generated on the surface of the base film, a deposited film of inorganic oxide such as silicon oxide and the base film are formed. It has the advantage that it becomes a thing with high close adhesiveness.
Furthermore, the degree of vacuum when forming a continuous film of an inorganic oxide such as silicon oxide as described above is 1 × 10 ^-1 ~ 1x10 ^-Four Torr position, preferably 1 × 10 ^-1 ~ 1x10 ^-2 Since the Torr position is prepared, the degree of vacuum when forming a deposited film of an inorganic oxide such as silicon oxide by a conventional vacuum deposition method is 1 × 10. ^-Four ~ 1x10 ^-Five Since the degree of vacuum is lower than that of the Torr position, it is possible to shorten the time for setting the vacuum state when replacing the base film with the original film, to easily stabilize the degree of vacuum, and to stabilize the film forming process. .
[0022]
In the present invention, a vapor deposition film of silicon oxide formed using a vapor deposition monomer gas such as an organosilicon compound chemically reacts with a vapor deposition monomer gas such as an organic silicon compound and oxygen gas, and the reaction product. However, it is closely bonded to one surface of the base film to form a dense, flexible thin film, usually with the general formula SiO _X (Where X represents a number from 0 to 2), and is a continuous thin film mainly composed of silicon oxide.
Thus, the silicon oxide vapor-deposited film has a general formula SiO in terms of transparency and barrier properties. _X (However, X represents the number of 1.3-1.9.) It is preferable that it is a thin film which mainly has the vapor deposition film | membrane of the silicon oxide represented.
In the above, the value of X varies depending on the molar ratio of vapor deposition monomer gas and oxygen gas, plasma energy, etc. Generally, the gas permeability decreases as the value of X decreases, but the film itself Becomes yellowish and the transparency is poor.
[0023]
In addition, the silicon oxide vapor-deposited film is mainly composed of silicon oxide, and further, at least one kind of compound composed of one kind of carbon, hydrogen, silicon, or oxygen, or two or more kinds thereof is chemically used. It consists of a vapor deposition film contained by bonding or the like.
For example, when a compound having a C—H bond, a compound having a Si—H bond, or a carbon unit is in the form of graphite, diamond, fullerene, etc. A derivative may be contained by a chemical bond or the like.
For example, CH _Three Hydrocarbon with part, SiH _Three Cyril, SiH ₂ Hydrosilica such as silylene, SiH ₂ Examples include hydroxyl derivatives such as OH silanol.
In addition to the above, it is possible to change the type, amount, and the like of the compound contained in the silicon oxide vapor deposition film by changing the conditions of the vapor deposition process.
Thus, the content of the above compound in the deposited film of silicon oxide is about 0.1 to 50%, preferably about 5 to 20%.
In the above, if the content is less than 0.1%, the impact resistance, spreadability, flexibility, etc. of the deposited silicon oxide film become insufficient, and scratches, cracks, etc. are likely to occur due to bending. It is difficult to stably maintain a high barrier property, and if it exceeds 50%, the barrier property is lowered, which is not preferable.
Furthermore, in the present invention, in the silicon oxide vapor deposition film, the content of the above-mentioned compound is preferably decreased from the surface of the silicon oxide vapor deposition film in the depth direction. On the surface, the impact resistance and the like can be enhanced by the above compound and the like. On the other hand, at the interface with the base film, the content of the above compound is small. This has the advantage that the tight adhesion of the material becomes strong.
[0024]
Thus, in the present invention, the above-described silicon oxide vapor deposition film is subjected to, for example, a surface analysis such as an X-ray photoelectron spectrometer (Xray Photoelectron Spectroscopy (XPS)), a secondary ion mass spectrometer (Secondary Ion Mass Spectroscopy, SIMS), or the like. The physical properties as described above can be confirmed by performing an elemental analysis of the deposited film of silicon oxide using a method of analyzing by ion etching in the depth direction using an apparatus.
In the present invention, the thickness of the silicon oxide vapor deposition film is preferably about 50 to 4000 mm, more specifically about 100 to 1000 mm. In the above, if it is thicker than 1000 mm, and more preferably 4000 mm, it is not preferable because cracks and the like are likely to occur in the film. Is not preferable because it becomes difficult.
In the above, the film thickness can be measured by a fundamental parameter method using, for example, a fluorescent X-ray analyzer (model name, RIX2000 type) manufactured by Rigaku Corporation.
In the above, as means for changing the film thickness of the silicon oxide vapor deposition film, the volume velocity of the vapor deposition film is increased, that is, the method of increasing the amount of monomer gas and oxygen gas and the vapor deposition rate. This can be done by a method of slowing down.
[0025]
Next, in the above, as a vapor deposition monomer gas such as an organic silicon compound for forming a vapor deposition film of an inorganic oxide such as silicon oxide, for example, 1.1.3.3-tetramethyldisiloxane, hexamethyldisiloxane Siloxane, vinyltrimethylsilane, methyltrimethylsilane, hexamethyldisilane, methylsilane, dimethylsilane, trimethylsilane, diethylsilane, propylsilane, phenylsilane, vinyltriethoxysilane, vinyltrimethoxysilane, tetramethoxysilane, tetraethoxysilane, phenyl Trimethoxysilane, methyltriethoxysilane, octamethylcyclotetrasiloxane, etc. can be used.
In the present invention, among the organic silicon compounds as described above, use of 1.1.3.3-tetramethyldisiloxane or hexamethyldisiloxane as a raw material is easy to handle and formed continuous film. In view of the above characteristics and the like, it is a particularly preferable raw material.
Moreover, in the above, as an inert gas, argon gas, helium gas, etc. can be used, for example.
[0026]
Next, in the present invention, the pretreatment layer provided on the surface of the inorganic oxide vapor deposition film constituting the barrier base material as described above will be described. Examples of the pretreatment layer include corona discharge treatment and ozone treatment. , Pretreatment such as low-temperature plasma treatment using oxygen gas or nitrogen gas, glow discharge treatment, oxidation treatment using chemicals, etc., and other pretreatments, for example, the surface of an inorganic oxide vapor deposition film Further, a corona treatment layer, an ozone treatment layer, a plasma treatment layer, an oxidation treatment layer, and the like can be formed and provided.
The pretreatment layer activates the surface of the inorganic oxide vapor deposition film, and improves, for example, tight adhesion with a primer agent layer, a printed pattern layer, a light blocking layer, and the like described later. Is.
[0027]
Next, in the present invention, a primer agent layer provided on the surface of the inorganic oxide vapor deposition film constituting the barrier substrate as described above will be described. As the primer agent layer, one of the substrate films is used. After providing an inorganic oxide vapor-deposited film on the surface, a printed pattern layer, a light blocking layer, a heat-sealable resin layer, etc. are provided on the surface of the pretreatment layer of the inorganic oxide vapor-deposited film. It is provided in order to increase the tight adhesion and improve the lamination strength when laminating.
Thus, as the primer agent layer, first, a polyurethane resin or a polyester resin is used as a main component of the vehicle, and the silane coupling agent 0 with respect to 1 to 30% by weight of the polyurethane resin or the polyester resin. .05 to 10% by weight, preferably 0.1% to 5% by weight, filler 0.1 to 20% by weight, preferably 1 to 10% by weight, If necessary, additives such as a stabilizer, a curing agent, a crosslinking agent, a lubricant, an ultraviolet absorber, and the like are optionally added, and a solvent, a diluent and the like are added and mixed well to prepare a resin composition.
[0028]
Thus, the resin composition prepared as described above is used. For example, a roll coat, a gravure coat, a knife coat, a dip coat, a spray coat, other coating methods, etc. By coating on the surface of the pretreatment layer of the inorganic oxide vapor deposition film provided on one surface of the base film, and then drying the coating film to obtain a solvent, a diluent, etc. And, if necessary, an aging treatment or the like can be performed to form the primer layer according to the present invention.
In the present invention, the film thickness of the primer layer is, for example, 0.1 g / m ² ~ 5.0 g / m ² (Dry state) is desirable.
Thus, in the present invention, the primer agent layer as described above improves the tight adhesion and the like, and also improves the elongation of the primer agent layer, for example, laminating or bag making. It improves post-processing suitability such as processing, and prevents the occurrence of cracks and the like in the deposited film of the inorganic oxide during post-processing.
[0029]
In the above, as a polyurethane-type resin which comprises said resin composition, the polyurethane-type resin obtained by reaction of a polyfunctional isocyanate and a hydroxyl group containing compound can be used, for example.
Specifically, for example, aromatic polyisocyanates such as tolylene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, hexamethylene diisocyanate, xylylene diisocyanate One obtained by reacting a polyfunctional isocyanate such as an aliphatic polyisocyanate such as a salt with a hydroxyl group-containing compound such as a polyether polyol, a polyester polyol, a polyacrylate polyol, or the like. A liquid or two-component curable polyurethane resin can be used.
Thus, in the present invention, by using the polyurethane-based resin as described above, the tight adhesion and the like are improved and the degree of elongation of the primer layer is improved, for example, laminating or It improves post-processing suitability such as bag-making processing and prevents the occurrence of cracks and the like in the deposited film of inorganic oxide during post-processing.
[0030]
In the above, the polyester resin constituting the resin composition includes, for example, one or more aromatic saturated dicarboxylic acids having a basic skeleton such as terephthalic acid and a saturated divalent alcohol. A thermoplastic polyester resin produced by polycondensation with one or more of the above can be used. In the above, examples of the aromatic saturated dicarboxylic acid having a benzene nucleus as a basic skeleton include terephthalic acid, isophthalic acid, phthalic acid, diphenyl ether-4, 4-dicarboxylic acid, and the like.
In the above, saturated divalent alcohols include ethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol, Polytetramethylene glycol, hexamethylene glycol, dodecamethylene glycol, aliphatic glycols such as neopentyl glycol, alicyclic glycols such as cyclohexanedimethanol, 2.2- Bis (4'-β-hydroxyethoxyphenyl) propane, naphthalene diol, other aromatic geo- and the like can be used.
[0031]
In the present invention, specific examples of the polyester resin include thermoplastic polyethylene terephthalate resin produced by polycondensation of terephthalic acid and ethylene glycol, terephthalic acid and tetramethylene glycol. Polybutylene terephthalate resin produced by polycondensation with styrene, thermoplastic polycyclohexanedimethylene terephthalate resin produced by polycondensation of terephthalic acid and 1,4-cyclohexanedimethanol, terephthalic acid Polyethylene terephthalate resin produced by copolycondensation of phthalic acid, isophthalic acid and ethylene glycol, produced by copolycondensation of terephthalic acid, ethylene glycol and 1,4-cyclohexanedimethanol Thermoplastic polyethylene terephthalate resin, terephthalic acid and isophthalic acid And ethylene glycol - le and propylene glycol - thermoplastic polyethylene terephthalate produced by co-polycondensation of Le - DOO resins, polyester polyol - can be used Le resin, other like.
In the present invention, the saturated aromatic dicarboxylic acid having a benzene nucleus as a basic skeleton as described above, for example, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, One or more aliphatic saturated dicarboxylic acids such as sebacic acid and dodecanoic acid can be added and copolycondensed, and the amount used is an aromatic saturated dicarboxylic acid having a benzene nucleus as a basic skeleton, It is preferable to add 1 to 10% by weight.
Thus, in the present invention, by using the polyester resin as described above, the tight adhesion and the like are improved and the elongation of the primer layer is improved, for example, laminating, or This improves the suitability for post-processing such as bag-making and prevents the occurrence of cracks and the like in the deposited film of the inorganic oxide during the post-processing.
[0032]
Next, in the above, as the silane coupling agent constituting the resin composition, organofunctional silane monomers having binary reactivity can be used, for example, γ-chloropropyltrimethoxysilane. , Vinyltrichlorosilane, vinyltriethoxysilane, vinyl-tris (β-methoxyethoxy) silane, γ-methacryloxypropyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxy Propyltrimethoxysilane, vinyltriacetoxysilane, γ-mercaptopropyltrimethoxysilane, N-β (aminoethyl) -γ-aminopropyltrimethoxysilane, N-β (aminoethyl) -γ-aminopropylmethyldimethoxysilane, γ-ureidopropyltriethoxy One or more of silane, bis (β-hydroxyethyl) -γ-aminopropyltriethoxysilane, an aqueous solution of γ-aminopropylsilicone and the like can be used.
[0033]
In the silane coupling agent as described above, a functional group at one end of the molecule, usually chloro, alkoxy, or acetoxy group, is hydrolyzed to form a silanol group (SiOH), which is an inorganic oxide. For example, a reaction such as a dehydration condensation reaction is caused by some action with a functional group on the surface of a metal or an inorganic oxide vapor deposition film, such as a hydroxyl group, to form an inorganic oxide. A silane coupling agent is modified with a covalent bond or the like on the surface of the oxide vapor-deposited film, and a strong bond is formed on the surface of the inorganic oxide vapor-deposited film of the silanol group itself by adsorption or hydrogen bonding. .
On the other hand, an organic functional group such as vinyl, methacryloxy, amino, epoxy, or mercapto on the other end of the silane coupling agent is formed on the thin film of the silane coupling agent, for example, an adhesive layer, etc. It reacts with the substance constituting the layer of the material to form a strong bond and firmly adheres tightly to increase the laminating strength. Thus, in the present invention, the laminating strength is high and strong. It is possible to form a simple laminated structure.
In the present invention, the inorganic and organic properties of the silane coupling agent are utilized to improve the tight adhesion between the inorganic oxide vapor-deposited film and the printed pattern layer, light blocking layer, and other layers. This increases the laminating strength and the like.
[0034]
Next, in the present invention, as the filler constituting the resin composition, for example, calcium carbonate, barium sulfate, alumina white, silica, talc, glass frit, resin powder, and the like may be used. it can.
Thus, the above-mentioned filler adjusts the viscosity of the above resin composition liquid, improves its coating suitability, and combines a polyurethane resin or polyester resin as a binder resin with a silane coupling agent. To improve the cohesive strength of the coating film.
[0035]
In the present invention, as the primer layer, in addition to the primer layer composed of the coating film made of the resin composition described above, for example, polyamide resin, epoxy resin, phenol The main component of the vehicle is a base resin, a (meth) acrylic resin, a polyvinyl acetate resin, a polyolefin resin such as polyethylene alumin polypropylene, or a copolymer or modified resin thereof, a cellulose resin, or the like. A primer layer can also be formed using a resin composition.
Thus, in the present invention, the above resin composition is coated by using a coating method such as a roll coat, a gravure roll coat, a kiss coat, or the like, as described above. -The primer coating agent layer can be formed by coating, and the coating amount is 0.1-5 g / m. ² (Dry state) is desirable.
However, in the present invention, as the primer layer, it is most desirable to use a primer layer made of a resin composition containing the polyurene resin or polyester resin as a main component of the vehicle.
[0036]
Next, in the present invention, the printed pattern layer constituting the flexible packaging bag according to the present invention will be described. As the printed pattern layer, for example, a primer agent layer provided on the above-mentioned barrier substrate is used. For example, a desired printed pattern composed of characters, figures, symbols, patterns, etc. can be printed on the surface base film described later to form a printed pattern layer.
Thus, as the above-mentioned printed pattern layer, specifically, first, the main component of the vehicle for ink composed of one or more kinds of resins and the like is used, and if necessary, a plasticizer and a stabilizer. , One or more additives such as antioxidants, light stabilizers, ultraviolet absorbers, curing agents, cross-linking agents, lubricants, antistatic agents, fillers, etc. are optionally added, and further dyes, A colorant such as a pigment is added, and the ink composition is prepared by sufficiently kneading with a solvent, a diluent, etc., and then the ink composition is used, for example, gravure printing, offset printing, letterpress printing, screen printing Printing method such as printing, transfer printing, flexographic printing, etc., on the primer layer provided on the above-mentioned barrier substrate, or on the surface substrate film described later, A desired printed pattern consisting of figures, symbols, patterns, etc. And printing, is capable of forming a printed pattern layer according to the present invention.
[0037]
In the above, as the vehicle for ink, known ones such as sesame oil, drill oil, soybean oil, hydrocarbon oil, rosin, rosin ester, rosin modified resin, shellac, alkyd resin, phenol resin, malein Acid resins, natural resins, hydrocarbon resins, polyvinyl chloride resins, polyvinyl acetate resins, polystyrene resins, polyvinyl butyral resins, acrylic or methacrylic resins, polyamide resins, polyester resins, polyurethane resins Use one or more of epoxy resin, urea resin, melamine resin, amino alkyd resin, phenol resin, nitrocellulose, ethylcellulose, chlorinated rubber, cyclized rubber, etc. Can do.
[0038]
Next, in the present invention, the light blocking layer constituting the soft packaging bag according to the present invention will be described. As the light blocking layer, first, an ink vehicle composed of one or more kinds of resins is used. Main component and, if necessary, additives such as plasticizers, stabilizers, antioxidants, light stabilizers, UV absorbers, curing agents, crosslinking agents, lubricants, antistatic agents, fillers, etc. One or two or more kinds are optionally added, and further, a colorant such as a dye or pigment is added, and the ink composition is prepared by sufficiently kneading with a solvent, a diluent, etc. Use, for example, gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, etc. on the printed pattern layer provided on the above-mentioned barrier substrate. Or the surface substrate film described later On the print pattern layer provided, by printing a printing coating layer made of solid layers, it is capable of forming a light blocking layer according to the present invention.
[0039]
Thus, in the present invention, the light blocking layer described above blocks the transmission of sunlight or fluorescence, such as the sun or fluorescent lamps, and decomposes or alters the contents filled and packaged in the flexible packaging bag. Alternatively, it is intended to prevent light deterioration such as fading and others.
Therefore, in the present invention, the printed film layer constituting the light blocking layer is preferably a printed film layer made of an ink composition containing a colorant having a property of absorbing, reflecting, or diffusing sunlight. It is.
Thus, as the colorant having the property of absorbing, reflecting or diffusing the above-mentioned sunlight, specifically, for example, various white or black various inorganic or organic dyes, pigments, etc. It is desirable to use a mixture of one or more colorants.
In the present invention, as the above-mentioned white or black colorants such as various inorganic or organic dyes and pigments, for example, basic lead carbonate, basic lead sulfate, basic lead silicate, zinc One or more white pigments such as white, zinc sulfide, lithopone, antimony trioxide, anatase-type titanium oxide, rutile-type titanium oxide, etc. or black pigments such as carbon black (channel or furnace), etc. Two or more types can be used.
The amount used is preferably about 0.1 to 30% by weight, preferably about 0.5 to 10% by weight added to the resin constituting the ink vehicle. is there.
[0040]
Furthermore, in the present invention, the light blocking layer includes a white ink composition containing the above-described white or black various inorganic or organic dyes and a colorant composed of one or more of pigments. It is desirable that the light blocking layer is composed of two layers, ie, a white printed film layer made of a product and a black printed film layer made of a black ink composition.
Thus, in the present invention, the light blocking layer comprising the two layers of the white printed film layer and the black printed film layer as described above absorbs sunlight or the like in one layer and the other layer. Reflects or diffuses sunlight, etc., and the double action effect of the two layers completely blocks the transmission of sunlight or fluorescence from the sun or fluorescent lamps, etc., and is packed in a flexible packaging bag It is intended to further enhance the effect of further preventing light degradation such as decomposition or alteration of materials, or discoloration, and the like. The dual advantage of being able to reproduce and reveal beautiful printed patterns by combining the functions, making the printed images of characters, figures, symbols, pictures, etc. that make up the printed pattern layer even clearer With That.
[0041]
In the above, the ink vehicle comprising a resin or the like forming the white ink composition or the black ink composition constituting the light blocking layer is similar to the above-described one, for example, a linseed oil, a borage oil, Soybean oil, hydrocarbon oil, rosin, rosin ester, rosin modified resin, shellac, alkyd resin, phenol resin, maleic resin, natural resin, hydrocarbon resin, polyvinyl chloride resin, polyvinyl acetate resin, Polystyrene resin, polyvinyl butyral resin, acrylic or methacrylic resin, polyamide resin, polyester resin, polyurethane resin, epoxy resin, urea resin, melamine resin, aminoalkyd resin, phenol resin, 1 to 2 or more types of nitrocellulose, ethyl cellulose, chlorinated rubber, cyclized rubber, etc. It can be used.
[0042]
Next, in the present invention, the heat-sealable resin layer constituting the flexible packaging bag according to the present invention will be described. The heat-sealable resin layer is melted by heat and fused to each other. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, ethylene-α / olefin copolymer polymerized using a metallocene catalyst, polypropylene , Ethylene-vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, Polyolefin resin such as polyethylene or polypropylene is used for acrylic acid, methacrylic acid, maleic anhydride, -Resin comprising one or more resins such as acid-modified polyolefin resin modified with unsaturated carboxylic acid such as phosphoric acid, poly (meth) acrylic resin, polyester resin, polyamide resin, etc. A film or a sheet or a coating film thereof can be used.
[0043]
The resin film or sheet can be used in a single layer or multiple layers. The thickness of the resin film or sheet is about 5 μm to 300 μm, preferably 10 μm to 110 μm. The position is desirable.
Further, in the present invention, the thickness of the above-described resin film or sheet is such that when the retort pouch is formed, the inorganic oxide vapor deposition film constituting the barrier base material is scratched or cracked. In order to prevent the occurrence of the above, it is preferable to relatively increase the film thickness, specifically, about 40 μm to 110 μm, preferably about 50 μm to 100 μm. is there.
Thus, in the present invention, among the resin films or sheets as described above, it is particularly preferable to use an unstretched polypropylene film having a thickness of about 50 μm to 100 μm.
[0044]
Next, in the present invention, the intermediate substrate constituting the flexible packaging bag according to the present invention will be described. As the intermediate substrate, the flexible packaging bag according to the present invention is the same as the above-described substrate film. Since it is a basic or auxiliary material, it has excellent mechanical, physical, chemical, etc. properties, excellent strength, heat resistance, moisture resistance, pinhole resistance, A resin film or sheet excellent in piercing property, transparency, and the like can be used.
Specifically, for example, a film of tough resin such as polyester resin, polyamide resin, polyaramid resin, polypropylene resin, polycarbonate resin, polyacetal resin, fluorine resin, or the like. A sheet can be used.
Thus, as the resin film or sheet, any of an unstretched film or a stretched film stretched in a uniaxial direction or a biaxial direction can be used.
In the present invention, the thickness of the resin film or sheet may be a thickness that can be kept to the minimum necessary for strength, puncture resistance, rigidity, and the like. On the other hand, if it is too thin, the strength, puncture resistance, rigidity, etc. are lowered, which is not preferable.
In the present invention, for the reasons described above, about 10 μm to 100 μm, preferably about 12 μm to 50 μm is most desirable.
Thus, in the present invention, among the resin films or sheets as described above, it is particularly preferable to use a biaxially stretched polyamide resin film having a thickness of about 15 μm to 30 μm.
[0045]
Next, in the present invention, the surface base film constituting the flexible packaging bag according to the present invention will be described. As such a surface base film, this is the same as the above-described base film or intermediate base. Since it is a basic or auxiliary material constituting the soft packaging bag, it has excellent properties in mechanical, physical, chemical, etc., has excellent strength, heat resistance, moisture resistance It is possible to use a resin film or sheet having excellent properties, pinhole resistance, puncture resistance, transparency, and the like.
Specifically, for example, a film of tough resin such as polyester resin, polyamide resin, polyaramid resin, polypropylene resin, polycarbonate resin, polyacetal resin, fluorine resin, or the like. A sheet can be used.
Thus, as the resin film or sheet, any of an unstretched film or a stretched film stretched in a uniaxial direction or a biaxial direction can be used.
In the present invention, the thickness of the resin film or sheet may be a thickness that can be kept to the minimum necessary for strength, puncture resistance, rigidity, and the like. On the other hand, if it is too thin, the strength, puncture resistance, rigidity, etc. are lowered, which is not preferable.
In the present invention, for the reasons described above, about 10 μm to 100 μm, preferably about 12 μm to 50 μm is most desirable.
Thus, in the present invention, among the resin films or sheets as described above, it is particularly preferable to use a biaxially stretched polyamide resin film having a thickness of about 15 μm to 30 μm.
[0046]
By the way, since packaging bags are usually subjected to severe physical and chemical conditions, the laminated materials constituting the packaging bags are required to have strict packaging suitability, deformation prevention strength, drop impact. Various conditions such as strength, pinhole resistance, heat resistance, sealability, quality maintenance, workability, hygiene, etc. are required. For this reason, in the present invention, in addition to the above materials, In addition, other materials satisfying the above-mentioned conditions can be arbitrarily used. Specifically, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, Ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid or methacrylic acid copolymer, Ten polymer, polybutene resin, polyvinyl chloride resin, polyvinyl acetate resin, polyvinylidene chloride resin, vinyl chloride-vinylidene chloride copolymer, poly (meth) acrylic resin, polyacrylonitrile resin, polystyrene Resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polyester resin, polyamide resin, polycarbonate resin, polyvinyl alcohol resin , Saponified ethylene-vinyl acetate copolymer, fluorine resin, diene resin, polyacetal resin, polyurethane resin, nitrocellulose, etc. Can be used.
In addition, for example, synthetic paper or the like can also be used.
In the present invention, the above-described film or sheet may be any of unstretched, uniaxially or biaxially stretched.
The thickness is arbitrary, but can be selected from a range of several μm to 300 μm.
Further, in the present invention, the film or sheet may be a film having any property such as extrusion film formation, inflation film formation, and coating film.
[0047]
In particular, in the present invention, as other base materials, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene having a barrier property to prevent permeation of water vapor, water, etc. -A film or sheet of a resin such as a propylene copolymer or the like can be used.
These materials can be used alone or in combination.
The thickness of the film or sheet is arbitrary, but is usually about 5 μm to 300 μm, more preferably about 10 μm to 100 μm.
[0048]
Next, in the above-described present invention, a method for producing a laminated material constituting the flexible packaging bag according to the present invention using the above-described material will be described. As such a method, an ordinary packaging material is produced. Laminating methods sometimes used, such as wet lamination, dry lamination, solventless lamination, melt extrusion lamination, melt coextrusion lamination, inflation, coextrusion inflation -It can be carried out by other methods.
Thus, in the present invention, when performing the above-described lamination, if necessary, for example, pretreatment such as corona treatment, ozone treatment, or frame treatment is optionally applied to the surface of the substrate to be laminated. be able to.
In the above, when extrusion lamination is performed, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin. , A polyolefin resin such as ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, polyethylene or polypropylene with acrylic acid, Acid-modified polyolefin resins modified with unsaturated carboxylic acids such as methacrylic acid, maleic anhydride, fumaric acid, etc. can be used as the resin for melt extrusion lamination.
In that case, as an adhesion assistant, for example, an anchor coating agent such as isocyanate, polyethyleneimine, or the like can be arbitrarily used.
In the present invention, when dry lamination is performed, for example, a solvent type, an aqueous type, or an emulsion type having a vehicle as a main component such as vinyl, acrylic, polyurethane, polyamide, polyester, epoxy, etc. Other adhesives for laminating, etc. can be used.
[0049]
Next, in the present invention, the flexible packaging bag according to the present invention, which is manufactured by making a bag using the above laminated material, will be described. -A bag-like container having the surfaces of the tosyl resin layers facing each other, and then heat sealing the peripheral end portion to form a seal portion and having an opening at the upper end portion The main body can be manufactured by making a bag.
Thus, as the bag making method, the above-mentioned laminated material is folded or overlapped so that the inner layer faces each other, and the peripheral edge thereof is, for example, a side seal type, two-layer type. Square seal type, three-way seal type, four-side seal type, envelope-attached seal type, jointed seal type (pill seal type), pleated seal type, flat bottom seal A bag-shaped container body having various shapes having an opening at the upper end is heat-sealed in the form of a heat seal such as a shell type, a square-bottom seal type, a gusset type, etc. And the flexible packaging bag concerning this invention can be manufactured.
In addition, as the flexible packaging bag according to the present invention, for example, a self-supporting packaging bag (standing pouch) or the like can be used, or a refilling bag for synthetic detergent or the like is also possible.
In the above, as the heat seal method, for example, a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, an ultrasonic seal and the like are known. It can be done by the method.
[0050]
Next, in the present invention, a packaging product in which the soft packaging bag according to the present invention is used and the contents are filled and packaged will be described. First, in the present invention, the upper end portion manufactured above has an opening. The soft packaging bag according to the present invention is used by filling the contents from the opening of the soft packaging bag according to the present invention and then sealing the end of the opening at the upper end with a heat seal or the like. Packaged products can be manufactured.
In the above, the contents to be filled and packaged in the flexible packaging bag according to the present invention include, for example, food and drink, fruit juice, juice, drinking water, liquor, cooked food, marine product, frozen food, meat product, boiled food, rice cake And various foods and beverages such as liquid soup, seasonings and others, liquid detergents, cosmetics, chemicals, and other articles.
[0051]
【Example】
Next, the present invention will be described more specifically with reference to examples.
Example 1
(1). A biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used, and this was mounted on a delivery roll of a plasma chemical vapor deposition apparatus. A 200 nm thick silicon oxide vapor deposition film was formed on the corona-treated surface of the film.
(Deposition conditions)
Deposition surface: Corona-treated surface
Amount of introduced gas: hexamethyldisiloxane: oxygen gas: helium = 1.0: 3.0: 3.0 (unit: slm)
Degree of vacuum in the vacuum chamber; 2-6 × 10 ^-6 mBar
Degree of vacuum in the deposition chamber; 2-5 × 10 ^-3 mBar
Cooling and electrode drum power supply: 10kW
Line speed: 100 m / min
Next, immediately after the silicon oxide vapor deposition film having a thickness of 200 mm is formed as described above, a glow discharge plasma generator is used on the silicon oxide vapor deposition film surface, and the power is 9 kw, oxygen gas (O ₂ ): Argon gas (Ar) = 7.0: 2.5 (unit: slm) is used, and the mixed gas pressure is 6 × 10. ^-Five Oxygen / argon mixed gas plasma treatment was performed at Torr to form a plasma treated surface in which the surface tension of the deposited silicon oxide film surface was improved by 54 dyne / cm or more.
Furthermore, an epoxy-based silane coupling agent (8.0% by weight) and an anti-blocking agent (1.0% by weight) are added to the initial condensation product of the polyurethane-based resin on the plasma-treated surface formed as described above. A polyurethane resin composition obtained by kneading is used, and the film thickness is 0.5 g / m by the gravure roll coating method. ² Coating was carried out so that (dry state) was obtained, followed by drying to form a primer layer, and a barrier substrate was produced.
(2). Next, a normal gravure ink composition is used on the surface of the primer layer of the barrier substrate produced in the above (1), and a desired printed pattern is formed by a gravure printing method. Using the following white ink composition and black ink composition, printed using the gravure roll coat method, each having a thickness of 2.0 g / m ² Coating was carried out (in a dry state) to form a light-blocking layer composed of two printed coating layers, a white printed coating and a black printed coating.
Next, on the surface of the light blocking layer formed as described above, a two-component curable polyurethane laminating adhesive is applied to a thickness of 4.0 g / m using a gravure roll coating method. ² (Dry state) is coated to form an adhesive layer for laminating, and then a biaxially stretched nylon 6 film having a thickness of 15 μm is applied to the surface of the laminating adhesive layer, and its corona-treated surface is applied. After facing each other, they were laminated and then both were laminated by dry lamination.
Furthermore, after the corona discharge treatment was performed on the surface of the biaxially stretched nylon 6 film laminated as described above, a laminating adhesive layer was formed on the corona treatment surface in the same manner as described above, and then A laminated material was produced by dry laminating and laminating a low-density polyethylene film having a thickness of 100 μm on the surface of the laminating adhesive layer.

(3). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
The packaged product manufactured above has strength and the like, and the weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. In particular, it has excellent barrier properties to block the permeation of oxygen gas, water vapor, etc., and also has excellent light blocking properties, and functions as a packaging container, such as broken bags or leakage of contents, are not recognized. It was excellent in filling / packaging suitability, distribution suitability, storage suitability, etc., and it was extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances when incineration disposal after use. .
[0052]
Example 2
(1). A biaxially stretched polyethylene terephthalate film with a thickness of 12 μm is used as the base film. First, the above-mentioned biaxially stretched polyethylene terephthalate film is mounted on a delivery roll of a take-up vacuum deposition apparatus. Then, this is fed out, and vacuum deposition by an electron beam (EB) heating method while supplying oxygen gas to the corona-treated surface of the biaxially stretched polyethylene terephthalate film using aluminum as a deposition source. Thus, an aluminum oxide vapor deposition film having a thickness of 200 mm was formed under the following vapor deposition conditions.
(Deposition conditions)
Degree of vacuum in the deposition chamber: 2 × 10 ^-Four mbar
Degree of vacuum in winding chamber: 2 × 10 ^-2 mbar
Electronic beam power: 25 kW
Film transport speed: 420 m / min
Deposition surface: Corona-treated surface
Next, immediately after the above-described aluminum oxide vapor deposition film having a thickness of 200 mm is formed, a glow discharge plasma generator is used on the aluminum oxide vapor deposition film surface, and the power is 9 kw, oxygen gas (O ₂ ): Argon gas (Ar) = 7.0: 2.5 (unit: slm) is used, and the mixed gas pressure is 6 × 10. ^-Five An oxygen / argon mixed gas plasma treatment was performed at Torr to form a plasma treated surface.
Next, on the plasma treatment surface of the vapor-deposited aluminum oxide film formed above, an initial condensation product of polyurethane resin, epoxy silane coupling agent (8.0% by weight) and antiblocking agent (1.0%) are added. A primer resin composition obtained by sufficiently kneading, and using a gravure roll coating method, a film thickness of 0.5 g / m ² A primer layer was formed by coating so as to be in a (dry state) to produce a barrier substrate.
(2). Next, a normal gravure ink composition is used on the surface of the primer layer of the barrier substrate produced in the above (1), and a desired printed pattern is formed by a gravure printing method. The same white ink composition and black ink composition as the white ink composition and black ink composition used in Example 1 above were used in the same manner and printed using the gravure roll coat method. Each thickness is 2.0 g / m ² Coating was carried out (in a dry state) to form a light-blocking layer composed of two printed coating layers, a white printed coating and a black printed coating.
Next, on the surface of the light blocking layer formed as described above, a two-component curable polyurethane laminating adhesive is applied to a thickness of 4.0 g / m using a gravure roll coating method. ² (Dry state) is coated to form an adhesive layer for laminating, and then a biaxially stretched nylon 6 film having a thickness of 15 μm is applied to the surface of the laminating adhesive layer, and its corona-treated surface is applied. After facing each other, they were laminated and then both were laminated by dry lamination.
Furthermore, after the corona discharge treatment was performed on the surface of the biaxially stretched nylon 6 film laminated as described above, a laminating adhesive layer was formed on the corona treatment surface in the same manner as described above, and then A laminated material was produced by dry laminating and laminating a low-density polyethylene film having a thickness of 100 μm on the surface of the laminating adhesive layer.
(3). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
The packaged product manufactured above has strength and the like, and the weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. In particular, it has excellent barrier properties to block the permeation of oxygen gas, water vapor, etc., and also has excellent light blocking properties, and functions as a packaging container, such as broken bags or leakage of contents, are not recognized. It was excellent in filling / packaging suitability, distribution suitability, storage suitability, etc., and it was extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances when incineration disposal after use. .
[0053]
Example 3
(1). A biaxially stretched nylon 6 film having a thickness of 15 μm is used as a base film, and this is mounted on a feeding roll of a plasma chemical vapor deposition apparatus. A silicon oxide vapor deposition film having a thickness of 150 mm is formed under the following conditions. It was formed on one side of an axially stretched nylon 6 film.
(Deposition conditions)
Reaction gas mixture ratio: hexamethyldisiloxane: oxygen gas: helium = 1: 11: 10 (unit: slm)
Degree of vacuum in the vacuum chamber: 5.2 × 10 ^-6 mbar
Degree of vacuum in the deposition chamber: 5.1 × 10 ^-2 mbar
Cooling / electrode drum power supply: 18kW
Film transport speed: 70 m / min
Deposition surface: Corona-treated surface
Next, a glow discharge plasma generator is used on the silicon oxide vapor deposition film surface of the biaxially stretched nylon 6 film on which the silicon oxide vapor deposition film is formed as described above, and the power is 9 kw, oxygen gas (O ₂ ): Argon gas (Ar) = 7.0: 2.5 (unit: slm) is used, and the mixed gas pressure is 6 × 10. ^-Five An oxygen / argon mixed gas plasma treatment was performed at Torr to form a plasma treated surface.
Next, on the surface of the plasma treatment of the deposited silicon oxide film formed above, an epoxy-based silane coupling agent (8.0% by weight) and an anti-blocking agent (1.0% by weight) are added to the initial condensation product of the polyurethane-based resin. A primer resin composition obtained by sufficiently kneading, and using a gravure roll coating method, a film thickness of 0.5 g / m ² A primer layer was formed by coating so as to be in a (dry state) to produce a barrier substrate.
(2). On the other hand, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm is used as the surface substrate film, and a normal gravure ink composition is used on the corona-treated surface, and a desired printing pattern is obtained by a gravure printing method. After that, the white ink composition and the black ink composition exactly the same as the white ink composition and the black ink composition used in Example 1 were used in the same manner on the entire surface including the printed pattern. -Printed using the Lucote method, each having a thickness of 2.0 g / m ² Coating was carried out (dry state) to form a light blocking layer consisting of two printed coating layers, a white printed coating and a black printed coating.
Next, on the surface of the light blocking layer formed as described above, a two-component curable polyurethane laminating adhesive is applied to a thickness of 4.0 g / m using a gravure roll coating method. ² (Laminated state) is coated to form an adhesive layer for laminating, and then the primer layer of the barrier substrate produced in (1) above on the surface of the laminating adhesive layer Both sides were dry laminated.
Further, after the corona discharge treatment was applied to the surface of the 15 μm-thick biaxially stretched nylon 6 film constituting the barrier substrate dry-laminated as described above, the lamina was treated on the corona-treated surface in the same manner as described above. -An adhesive layer for coating was formed, and then a low-density polyethylene film having a thickness of 100 µm was dry laminated on the surface of the above-mentioned adhesive layer for lamination to produce a laminated material.
(3). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
The packaged product manufactured above has strength and the like, and the weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. In particular, it has excellent barrier properties to block the permeation of oxygen gas, water vapor, etc., and also has excellent light blocking properties, and functions as a packaging container, such as broken bags or leakage of contents, are not recognized. It was excellent in filling / packaging suitability, distribution suitability, storage suitability, etc., and it was extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances when incineration disposal after use. .
[0054]
Example 4
In Example 1 above, an unstretched polypropylene film having a thickness of 100 μm was used instead of the low-density polyethylene film having a thickness of 100 μm as the heat-sealable resin layer. Similar results were obtained as in Example 1.
[0055]
Example 5
In Example 2 above, instead of using a low-density polyethylene film having a thickness of 100 μm as the heat-sealable resin layer, an unstretched polypropylene film having a thickness of 100 μm was used. Similar results were obtained as in Example 2.
[0056]
Example 6
In Example 3 above, an unstretched polypropylene film having a thickness of 100 μm was used instead of the low-density polyethylene film having a thickness of 100 μm as the heat-sealable resin layer. Similar results were obtained as in Example 3.
[0057]
Example 7
(1). A biaxially stretched polyethylene terephthalate film with a thickness of 12 μm is used as the base film. First, the above-mentioned biaxially stretched polyethylene terephthalate film is mounted on a delivery roll of a take-up vacuum deposition apparatus. Then, this is fed out, and vacuum deposition by an electron beam (EB) heating method while supplying oxygen gas to the corona-treated surface of the biaxially stretched polyethylene terephthalate film using aluminum as a deposition source. Thus, a 200 nm thick aluminum oxide vapor deposition film was formed under the following vapor deposition conditions.
(Deposition conditions)
Degree of vacuum in the deposition chamber: 2 × 10 ^-Four mbar
Degree of vacuum in winding chamber: 2 × 10 ^-2 mbar
Electronic beam power: 25 kW
Film transport speed: 420 m / min
Deposition surface: Corona-treated surface
Next, immediately after the above-described aluminum oxide vapor deposition film having a thickness of 200 mm is formed, a glow discharge plasma generator is used on the aluminum oxide vapor deposition film surface, and the power is 9 kw, oxygen gas (O ₂ ): Argon gas (Ar) = 7.0: 2.5 (unit: slm) is used, and the mixed gas pressure is 6 × 10. ^-Five An oxygen / argon mixed gas plasma treatment was performed at Torr to form a plasma treated surface.
Next, on the plasma treatment surface of the vapor-deposited aluminum oxide film formed above, an initial condensation product of polyurethane resin, epoxy silane coupling agent (8.0% by weight) and antiblocking agent (1.0%) are added. A primer resin composition obtained by sufficiently kneading, and using a gravure roll coating method, a film thickness of 0.5 g / m ² A primer layer was formed by coating so as to be in a (dry state) to produce a barrier substrate.
(2). Next, a normal gravure ink composition is used on the surface of the primer layer of the barrier substrate produced in the above (1), and a desired printed pattern is formed by a gravure printing method. The same white ink composition and black ink composition as the white ink composition and black ink composition used in Example 1 above were used in the same manner and printed using the gravure roll coat method. Each thickness is 2.0 g / m ² Coating was carried out (dry state) to form a light blocking layer consisting of two printed coating layers, a white printed coating and a black printed coating.
Next, on the surface of the light blocking layer formed as described above, a two-component curable polyurethane laminating adhesive is applied to a thickness of 4.0 g / m using a gravure roll coating method. ² (Laminated state) to form a laminating adhesive layer, and then laminating and laminating an unstretched polypropylene film with a thickness of 100 μm on the laminating adhesive layer surface. A laminated material was manufactured.
(3). Next, two sheets of the laminated material produced above were prepared, and the unstretched polypropylene film surfaces were opposed to each other. After that, the outer peripheral edge portion was sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
The packaged product manufactured above has strength and the like, and the weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. In particular, it has excellent barrier properties to block the permeation of oxygen gas, water vapor, etc., and also has excellent light blocking properties, and functions as a packaging container, such as broken bags or leakage of contents, are not recognized. It was excellent in filling / packaging suitability, distribution suitability, storage suitability, etc., and it was extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances when incineration disposal after use. .
[0058]
Example 8
(1). A biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used, and this was mounted on a delivery roll of a plasma chemical vapor deposition apparatus. A 200 nm thick silicon oxide vapor deposition film was formed on the corona-treated surface of the film.
(Deposition conditions)
Deposition surface: Corona-treated surface
Amount of introduced gas: hexamethyldisiloxane: oxygen gas: helium = 1.0: 3.0: 3.0 (unit: slm)
Degree of vacuum in the vacuum chamber; 2-6 × 10 ^-6 mBar
Degree of vacuum in the deposition chamber; 2-5 × 10 ^-3 mBar
Cooling and electrode drum power supply: 10kW
Line speed: 100 m / min
Next, immediately after the silicon oxide vapor deposition film having a thickness of 200 mm is formed as described above, a glow discharge plasma generator is used on the silicon oxide vapor deposition film surface, and the power is 9 kw, oxygen gas (O ₂ ): Argon gas (Ar) = 7.0: 2.5 (unit: slm) is used, and the mixed gas pressure is 6 × 10. ^-Five Oxygen / argon mixed gas plasma treatment was performed at Torr to form a plasma treated surface in which the surface tension of the deposited silicon oxide film surface was improved by 54 dyne / cm or more.
Furthermore, an epoxy-based silane coupling agent (8.0% by weight) and an anti-blocking agent (1.0% by weight) are added to the initial condensation product of the polyurethane-based resin on the plasma-treated surface formed as described above. A polyurethane resin composition obtained by kneading is used, and the film thickness is 0.5 g / m by the gravure roll coating method. ² Coating was carried out so that (dry state) was obtained, followed by drying to form a primer layer, and a barrier substrate was produced.
(2). Next, a normal gravure ink composition is used on the surface of the primer layer of the barrier substrate produced in the above (1), and a desired printed pattern is formed by a gravure printing method. The same white ink composition and black ink composition as the white ink composition and black ink composition used in Example 1 above were used in the same manner and printed using the gravure roll coat method. Each thickness is 2.0 g / m ² Coating was carried out (dry state) to form a light blocking layer consisting of two printed coating layers, a white printed coating and a black printed coating.
Next, on the surface of the light blocking layer formed as described above, a two-component curable polyurethane laminating adhesive is applied to a thickness of 4.0 g / m using a gravure roll coating method. ² (Laminated state) to form a laminating adhesive layer, and then laminating and laminating an unstretched polypropylene film with a thickness of 100 μm on the laminating adhesive layer surface. A laminated material was manufactured.
(3). Next, two sheets of the laminated material produced above were prepared, and the unstretched polypropylene film surfaces were opposed to each other. After that, the outer peripheral edge portion was sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
The packaged product manufactured above has strength and the like, and the weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, etc. In particular, it has excellent barrier properties to block the permeation of oxygen gas, water vapor, etc., and also has excellent light blocking properties, and functions as a packaging container, such as broken bags or leakage of contents, are not recognized. It was excellent in filling / packaging suitability, distribution suitability, storage suitability, etc., and it was extremely excellent in waste disposal suitability, environmental suitability, etc. without generating harmful substances when incineration disposal after use. .
[0059]
Comparative Example 1
(1). A normal gravure ink composition is used on the corona-treated surface of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, and a desired printed pattern is formed by a gravure printing method. A thickness of 4.0 g / m of a liquid curing type polyurethane adhesive using a gravure roll coating method. ² (Dry state) coating to form a laminating adhesive layer, and then laminating a 15 μm thick biaxially stretched nylon 6 film on the laminating adhesive layer surface did.
Next, after the corona discharge treatment was applied to the surface of the 15 μm thick biaxially stretched nylon 6 film laminated as described above, a laminating adhesive layer was formed on the corona treatment surface in the same manner as described above. After that, on the surface of the laminating adhesive layer, an aluminum foil having a thickness of 7 μm is laminated by dry laminating. Further, on the surface of the laminated aluminum foil, laminating is performed in the same manner as described above. -An adhesive layer for coating was formed, and then a low-density polyethylene film having a thickness of 100 µm was dry laminated on the surface of the above-mentioned adhesive layer for lamination to produce a laminated material.
(2). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
[0060]
Comparative Example 2
(1). A normal gravure ink composition is used on the corona-treated surface of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, and a desired printed pattern is formed by a gravure printing method. A thickness of 4.0 g / m of a liquid curing type polyurethane adhesive using a gravure roll coating method. ² (Dry state) coating to form a laminating adhesive layer, and then laminating bilayer oriented nylon having a thickness of 400 μm of aluminum deposited film on the surface of the laminating adhesive layer The six films were laminated by dry lamination with the aluminum vapor-deposited film facing the outside.
Next, on the surface of the corona-treated surface of the 15 μm-thick biaxially stretched nylon 6 film having the 400-mm-thick aluminum deposited film laminated above (on the corona-treated surface after the corona discharge treatment), In the same manner as described above, a laminating adhesive layer is formed, and then a laminating adhesive layer surface of the laminating layer is laminated by dry laminating a low-density polyethylene film having a thickness of 100 μm. The material was manufactured.
(2). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
[0061]
Comparative Example 3
(1). A normal gravure ink composition is used on the corona-treated surface of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, and a desired printed pattern is formed by a gravure printing method. A thickness of 4.0 g / m of a liquid curing type polyurethane adhesive using a gravure roll coating method. ² (Laminated state) to form a laminating adhesive layer, and then a saponified film of ethylene-vinyl acetate copolymer having a thickness of 15 μm is dried on the laminating adhesive layer surface. -Stacked.
Next, on the surface of the saponified film of ethylene-vinyl acetate copolymer having a thickness of 15 μm laminated as described above, an adhesive layer for laminating was formed in the same manner as described above. A biaxially stretched nylon 6 film having a thickness of 15 μm is laminated on the surface of the adhesive layer for the toner by dry laminating. Further, on the surface of the biaxially stretched nylon 6 film having a thickness of 15 μm, the same as described above. Then, a laminating adhesive layer was formed, and then, a laminating material was laminated by dry laminating a low-density polyethylene film having a thickness of 100 μm on the laminating adhesive layer surface. .
(2). Next, two sheets of the laminated material produced above are prepared, and the surfaces of the low-density polyethylene film are opposed to each other, and thereafter, the end portions around the outer periphery are sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
[0062]
Comparative Example 4
(1). A normal gravure ink composition is used on the corona-treated surface of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, and a desired printed pattern is formed by a gravure printing method. A thickness of 4.0 g / m of a liquid curing type polyurethane adhesive using a gravure roll coating method. ² (Dry state) coating to form a laminating adhesive layer, and then laminating a 15 μm thick biaxially stretched nylon 6 film on the laminating adhesive layer surface did.
Next, after the corona discharge treatment was applied to the surface of the 15 μm thick biaxially stretched nylon 6 film laminated as described above, a laminating adhesive layer was formed on the corona treatment surface in the same manner as described above. After that, on the surface of the laminating adhesive layer, an aluminum foil having a thickness of 7 μm is laminated by dry laminating. Further, on the surface of the laminated aluminum foil, laminating is performed in the same manner as described above. -An adhesive layer for a laminate was formed, and then an unstretched polypropylene film with a thickness of 100 µm was dry laminated on the surface of the adhesive layer for a laminate, and a laminate was produced.
(2). Next, two sheets of the laminated material produced above were prepared, and the unstretched polypropylene film surfaces were opposed to each other. After that, the outer peripheral edge portion was sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
[0063]
Comparative Example 5
(1). A normal gravure ink composition is used on the corona-treated surface of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, and a desired printed pattern is formed by a gravure printing method. A thickness of 4.0 g / m of a liquid curing type polyurethane adhesive using a gravure roll coating method. ² (Laminated state) to form a laminating adhesive layer, and then a saponified film of ethylene-vinyl acetate copolymer having a thickness of 15 μm is dried on the laminating adhesive layer surface. -Stacked.
Next, on the surface of the saponified film of ethylene-vinyl acetate copolymer having a thickness of 15 μm laminated as described above, an adhesive layer for laminating was formed in the same manner as described above. A biaxially stretched nylon 6 film having a thickness of 15 μm is laminated on the surface of the adhesive layer for the toner by dry laminating. Further, on the surface of the biaxially stretched nylon 6 film having a thickness of 15 μm, the same as described above. Then, an adhesive layer for laminating was formed, and then, an unstretched polypropylene film having a thickness of 100 μm was dry laminated on the surface of the laminating adhesive layer to produce a laminated material. .
(2). Next, two sheets of the laminated material produced above were prepared, and the unstretched polypropylene film surfaces were opposed to each other. After that, the outer peripheral edge portion was sealed in a three-way heat seal. A three-sided seal-type flexible packaging bag having an opening and an upper opening was produced.
In the three-sided seal type soft packaging bag manufactured above, the dressing is filled and packaged from the opening, and then the end of the opening is heat sealed and the upper seal is formed. Formed and manufactured a packaged product.
[0064]
Experimental example
The evaluation items shown below were measured for the laminated materials produced in Examples 1 to 8 and Comparative Examples 1 to 5 and the flexible packaging bags produced using the laminated materials.
(1). Measurement of light shielding
This is about the laminated material constituting the flexible packaging bags manufactured in Examples 1 to 8 and Comparative Examples 1 to 5, manufactured by Suga Test Instruments Co., Ltd., model name, SM color computer. The total light transmittance was measured and evaluated.
(2). Measurement of oxygen permeability
This is a measuring machine manufactured by MOCON, USA, under the conditions of a temperature of 23 ° C. and a humidity of 90% RH for the laminates produced in Examples 1 to 8 and Comparative Examples 1 to 5 above. Name, OXTRAN].
(3). Measurement of water vapor transmission rate
This is a measuring machine manufactured by MOCON, USA, under the conditions of a temperature of 40 ° C. and a humidity of 90% RH for the laminates manufactured in Examples 1 to 8 and Comparative Examples 1 to 5. Name, PERMATRAN].
(4). Pinhole measurement
This is a laminated material that constitutes a flexible packaging bag by performing it twice and 2000 times using a gelbo tester for the flexible packaging bags manufactured in Examples 1 to 8 and Comparative Examples 1 to 5 described above. The number of pinholes was counted and measured.
(5). Sensory measurement
The dressing is filled and packaged in the flexible packaging bags manufactured in Examples 1 to 8 and Comparative Examples 1 to 5, and stored in an oven at 40 ° C. for 1 day, and then the bags are opened. Then, five testers confirmed the presence or absence of odor, and ◎ indicates almost no odor, ○ indicates a slight odor, Δ indicates a odor, and X indicates a considerable odor.
The measurement results are shown in Table 1 below.
[0065]

In Table 1 above, the unit of oxygen permeability is [cc / m. ² / Day 23 ° C./90% RH], and the unit of water vapor permeability is [g / m ² / Day · 40 ° C. · 90% RH], and the number of pinholes is piece / A4 size.
[0066]
As is clear from the measurement results shown in Table 1 above, it was confirmed that the samples according to Examples 1 to 8 were sufficiently practical in terms of light blocking properties, oxygen permeability and water vapor permeability. Moreover, it was excellent also in pinhole resistance, aroma retention, etc.
On the other hand, those according to Comparative Examples 1, 2, and 4 are excellent in light blocking properties, oxygen permeability and water vapor permeability, and are excellent in pinhole resistance, aroma retention, etc. The pinhole is slightly lacking, and those according to Comparative Examples 3 and 5 are excellent in oxygen permeability, water vapor permeability, pinhole resistance, etc. Moreover, it was not fully satisfactory also in incense retention property.
[0067]
【The invention's effect】
As is apparent from the above description, the present invention first provides a barrier by providing a vapor deposition film of an inorganic oxide such as aluminum oxide or silicon oxide on one surface of a base film made of the above resin film or the like. The surface of the deposited film of an inorganic oxide such as aluminum oxide and silicon oxide constituting the barrier base material is subjected to a pretreatment such as a corona discharge treatment or a plasma treatment. For example, a primer agent layer is formed by using a primer agent mainly composed of a polyurethane resin or a polyester resin, and then a desired printed pattern layer is provided on the primer agent layer. In addition, a light blocking layer composed of two layers, a white printed film layer made of a white ink composition and a black printed film layer made of a black ink composition, is provided on the entire surface including the printed pattern layer. The white printed film layer constituting the film is also used as the base layer of the printed pattern layer, and then a heat-sealable resin layer is laminated on the black printed film layer. Then, the laminated material is manufactured, and then the laminated material is used to produce a flexible packaging bag, and then the flexible packaging bag is filled with contents such as desired food and drink products. To produce packaged products that have strength, etc., and excellent physical properties such as weather resistance, heat resistance, water resistance, heat seal resistance, pin hole resistance, puncture resistance, and others. In particular, it has excellent barrier properties to block the transmission of oxygen gas, water vapor, etc. and also has excellent light blocking properties. For example, it blocks the transmission of sunlight or fluorescence by the sun or fluorescent lamps, etc., and the contents are decomposed or altered. Or to prevent light deterioration such as amber and others, It is possible to manufacture flexible packaging bags that have excellent packing and storage suitability, storage suitability, etc., and are extremely excellent in disposal and suitability for the environment without generating harmful substances when incinerated and discarded after use. It can be done.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing an example of a layer structure of a laminated material constituting a flexible package according to the present invention.
FIG. 2 is a schematic cross-sectional view showing a layer structure of an example of a laminated material constituting a flexible package according to the present invention.
FIG. 3 is a schematic cross-sectional view showing an example of the layer structure of the laminated material constituting the flexible packaging according to the present invention.
FIG. 4 is a schematic cross-sectional view showing an example of the layer structure of the laminated material constituting the flexible packaging according to the present invention.
FIG. 5 is a schematic cross-sectional view showing an example of the layer structure of the laminated material constituting the flexible packaging according to the present invention.
6 is a schematic perspective view showing a configuration of a flexible packaging bag according to the present invention produced by using the laminated material shown in FIG. 1 and making the bag.
FIG. 6 is a schematic perspective view showing the configuration of a packaged product using the flexible packaging bag according to the present invention and filling and packing the contents therein.
FIG. 8 is a schematic configuration diagram showing an outline of an example of a take-up vacuum deposition apparatus.
FIG. 9 is a schematic configuration diagram showing an outline of an example of a plasma chemical vapor deposition apparatus.
[Explanation of symbols]
1 Base film
2 Vapor deposition film of inorganic oxide
3 Barrier base material
4 Light blocking layer
5 Heat-sealable resin layer
6 Pretreatment layer
7 Primer layer
8 Print pattern layer
9 Intermediate substrate
10 Surface base film
A, A ₁ , A ₂ Laminate
B Flexible packaging bag
C Packaging product

Claims (1)

A barrier base material in which a vapor-deposited film of silicon oxide or aluminum oxide is provided on one surface of a biaxially stretched polyethylene terephthalate film, and a primer made of a primer agent comprising a polyurethane resin or a polyester resin as a main component of a vehicle It consists of two layers: an agent layer, a printed pattern layer, a white printed film layer made of a white ink composition, and a black printed film layer made of a black ink composition. of the underlayer serving also light blocking layer, and a biaxially oriented nylon film, low density polyethylene film or made of unstretched polypropylene film heat - a laminate obtained by sequentially laminating the six layers of the Le resin layer - tosylate A flexible packaging bag made by bag making.

Images