JP7437880B2 - 包装材 - Google Patents
包装材 Download PDFInfo
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- JP7437880B2 JP7437880B2 JP2019093104A JP2019093104A JP7437880B2 JP 7437880 B2 JP7437880 B2 JP 7437880B2 JP 2019093104 A JP2019093104 A JP 2019093104A JP 2019093104 A JP2019093104 A JP 2019093104A JP 7437880 B2 JP7437880 B2 JP 7437880B2
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Description
a)ポリマーマトリクス中に分散した抗菌及び/又は抗真菌活性を有する活性物質を含む、ポリマー材のコア層、
b)フィロシリケート又はハイドロタルサイトのナノフィラーを含むラッカー又はポリマー塗料から得られる、該コア層の一面に適用された塗膜、及び
c)カプセル化エタノール及びポリエチレングリコール又はシクロデキストリンでグラフト化したキトサン、キトサンとポリエチレングリコールとの混合物、及び印刷可能な塗料のためのポリマ―又はポリマーの混合物から選択されるポリマー成分、を含む、活性な抗菌又は抗真菌剤の放出のための、該コア層の他の面に適用された塗膜。
d)前記塗膜層c)に適用された酸素捕捉塗膜、及び/又は
e)前記塗膜層c)に、又は塗膜層d)に適用された、前記a)タイプの抗菌及び/又は抗真菌活性を有する活性物質を含む、ポリマー塗膜。
・キトサン:キトサンは、ベータ結合(1-4)により結合した、D-グルコサミン及びN-アセチル-D-グルコサミンからなる鎖状の多糖類である。その抗菌及び抗真菌性が知られている、
・アルギン酸及びアルギン酸塩、
・グレープフルーツ種子抽出物(又はシトラス種子抽出物):グレープフルーツの種子、樹木及び白膜由来の液体抽出物である。フラバノン、ナリンジン及びヘスペリジンを含む、天然の抗菌剤として知られている、
・レモンピール精油:主にリモネンを含む液体抽出物である、
・ティーツリー油(Melaleuca alternifolia油):ティーツリーから蒸留される精油であり、その消毒、抗真菌、抗菌及び抗ウィルス性が知られており、その主な活性成分は、テルピネン-4-オールである(およそ40%)、
・シナモン油:主成分(およそ36%)としてリナロールを含むシナモンの葉から得られる液体抽出物、
・タイム油及びそれらの主成分、例えば、チモール、p-シメン、エストラゴール、リナロール及びカルバクロール、
・カプセル化エタノール:コア層構造中のエタノールは、粉末の形態で使用され、好ましくは噴霧乾燥法によりカプセル化される。カプセル化する皮膜は、またマルトデキストリン(多糖類)(CAS number 9050-36-6)として知られる、デキストリンベースのものであることができ、マルトデキストリンはトウモロコシから部分的加水分解により製造される、ガスで乾燥させた白色粉末して市販の物質である。方法は、デキストリンとエタノールとの混合物の調製、該混合物が小さい液滴/顆粒に変換されるようにするための単発の噴霧乾燥の適用を含み、加熱を通じて、デキストリンが外部皮膜を形成する。本方法の終わりには、液滴/顆粒に含まれるアルコールは40%にまで到達することが可能である。しかしながら、カプセル化生成物が経時的にエタノール蒸気を放出することが可能である限りにおいては、他のカプセル化手法、例えばシクロデキストリン中で検討してもよい。
i) キトサン:25重量%
PEG:25重量%
マルトデキストリンカプセル化エタノール:1重量%
酢酸アセチルベースの溶媒:50重量%、
又は
ii)キトサン(90%脱アセチル化):15重量%
PEG:30重量%
カプセル化エタノール:2重量%
溶媒:51重量%の酢酸エチル又はイソプロピルアルコール又は水。
-以下を伴う、溶媒ベース塗料中、1~7%の鉄
・58%~86%の量で有機担体(溶媒)(例えば、酢酸エチル)とともに、13~35%のポリマー、例えば、ニトロセルロース、酢酸ビニル、ポリエステル、ポリウレタン
をまた使用してもよい。
例:溶媒55重量%
活性物質:35重量%
ポリマー:10重量%
以降の実施例は、本発明の好ましい実施形態を参照する。
コア層a)の調製について、最も好ましい材料は、ポリカプロラクトン(PCL)、ポリヒドロキシアルカノアート(PHA)ポリマー及びコポリマー、特にポリヒドロキシブチラート、又はポリプロピレンを含む。活性剤は、好ましくはグレープフルーツ種子抽出物(要すれば固形のナリンジン活性剤と併せて)、キトサン及び/又はアルギン酸塩及びそれらの混合物及び/又はカプセル化エタノールから選択される。
コア層は、共押出法により、活性剤を溶融ポリマー中で混合することにより、得られる。
PCLポリマー:83重量%
活性物質:
レモンピール精油:2重量%
キトサン(90%脱アセチル化度):15重量%
前記調製方法を、PCLの代わりにポリヒドロキシブチラートを使用して、繰り返す。
実施例1の手順を、PCLの代わりにポリプロピレンを使用して、繰り返す。
バリア層の調製のために、0.6ミクロン×1.4ミクロン未満の最大サイズを有する(二次元)ラメラ粒子中、30重量%のモントモリロナイト(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2・n(H2O)を含む、ポリウレタンベースの組成物を使用する。
この塗膜には、以下のものを含む組成物を使用する:
PEGでグラフト化したキトサン:25重量%
PEG:25重量%
カプセル化エタノール:1重量%
酢酸アセチルベースの溶媒:50重量%
酸素捕捉活性を有する塗膜の調製
この塗膜には、5重量%の鉄ナノ粒子及びポリ酢酸ビニル(65重量%)を含む、水性ラッカーを使用する。
23μmのポリプロピレンホモポリマーの主要層及び密封性を与える、各々1.5μmのポリプロピレンコポリマーの2つの外層を有する、26μmの二軸配向共押出ポリプロピレン包装フィルム。
WVTR 6g/m2×24h 90%RH、38℃、
O2TR 2000cc/m2×24h×atm 0%RH、23℃、
O2TR 3500cc/m2×24h×atm 60%RH、38℃。
実施例7の共押出二軸配向ポリプロピレンフィルムを含む包装フィルムであって、包装の外側に向けられることを意図されているその表面を、50オングストロームを上回る程度で酸化によるアルミニウム蒸着で、高真空金属化法により、金属化する。フィルムをさらに別の二軸配向ポリエチレンテレフタレートフィルム(内部に印刷された、厚さ12μmの共押出BOPET)と結合する。多層フィルムは、PPについては0.91及びPETについては1.34の密度で、及びインクについては39.74g/m2プラス5g/m2の重量で、接着剤及び印刷インクを含め、全体で厚さ43μmを有する。
WVTR 0.5g/m2×24h 90%RH、38℃、
O2TR 50cc/m2×24h×atm 0%RH、23℃、
O2TR 100cc/m2×24h×atm 60%RH、38℃。
二軸配向PPフィルムの共押出工程の間、同じ重量の10重量%のキトサン及び3重量%のアルギン酸塩が、ホモポリマーと混合したPP層及びPPコポリマーと滑走剤との内層のいずれにも含まれている、実施例8の包装フィルム。最終重量は、50m/min、SIT130℃で46g/m2である。
WVTR 0.5g/m2×24h 90%RH、38℃、
O2TR 45cc/m2×24h×atm 0%RH、23℃、
O2TR 95cc/m2×24h×atm 60%RH、38℃。
以下のものを含む包装フィルム:
・10重量%のキトサンと3重量%のアルギン酸塩とを含む、厚さ30μmのPHBHフィルム(3-ヒドロキシブチラート及び3-ヒドロキシヘキサノアートコポリマー)
・実施例4の、重量2g/m2の外側のバリアラッカー
WVTR 2g/m2×24h 90%RH、38℃、
O2TR 0.01cc/m2×24h×atm 0%RH、23℃、
O2TR 0.08cc/m2×24h×atm 60%RH、38℃。
以下のものからなる包装フィルム:
・10重量%のキトサン、3重量%のアルギン酸塩及び3重量%のカプセル化エタノールを含む、PHBHフィルム、
・実施例4の、重量2g/m2の、外側のバリアラッカー、及び
・カプセル化エタノール及び実施例5の重量3.5g/m2の、PEGでグラフト化したキトサンを含む、内側の開放塗膜。
WVTR 1.8g/m2×24h 90%RH、38℃、
O2TR 0.01cc/m2×24h×atm 0%RH、23℃、
O2TR 0.06cc/m2×24h×atm 60%RH、38℃。
次のラッカーを非溶着領域で実施例11の包装フィルムに追加する:
・実施例6の酸素捕捉活性を有するラッカー、重量3.5g/m2、
・フィルムそれ自体に使用したものと同じ活性物質の混合物を含むラッカー、重量3g/m2。
WVTR 1.6g/m2×24h 90%RH、38℃、
O2TR 0.01cc/m2×24h×atm 0%RH、23℃、
O2TR 0.04cc/m2×24h×atm 60%RH、38℃。
前記実施例の包装フィルムの使用とともに、端部で縦横に溶着した、寸法155×160mmの単一シートで作製したフローパック包装を用意した:
有効包装体積:240cm3
・重量損失:一月後の包装の重量損失(初期重量を参照してのパーセンテージ)、
・接触によるカビ抑制日数:パンと包装シートとの間の接触領域におけるカビ抑制日数、成長したカビは、アスペルギルス、青カビ及びワレミアを含む、ミアを含む、
・ヘッドスペースによるカビ抑制日数:ヘッドスペースと接触しているパンの領域におけるカビ形成の抑制の日数、
・官能特性を有する日数:最初の官能特性の保持の維持日数、テイスターパネルによる決定。
WVTR:水蒸気透過速度(g/m2×24h 90%RH、38℃、)
O2TR:酸素浸透速度(cc/m2×24h×atm 0%RH、23℃)、
負荷O2TR:酸素浸透速度(cc/m2×24h×atm 60%RH、38℃)、
Claims (19)
- a)ポリマーマトリクス中に分散した抗菌及び/又は抗真菌活性を有する少なくとも1つの活性物質を含む、ポリマー材のコア層、
b)フィロシリケート又はハイドロタルサイトのフィラーを含むラッカー又はポリマー塗料から得られる、該コア層の一面に適用された塗膜、
c)該コア層の他の面に適用された、活性な抗菌又は抗真菌剤の放出のための塗膜であて、
カプセル化エタノール及び、
ポリエチレングリコールでグラフト化したキトサン
を含む、塗膜
を含む、包装材。 - d)前記塗膜c)に適用された酸素捕捉塗膜
をさらに含むことを特徴とする、請求項1に記載の包装材。 - 前記塗膜c)又は前記塗膜d)に適用される、抗菌及び/又は抗真菌活性を有する活性物質を含むポリマー塗膜を含む、請求項1又は請求項2に記載の包装材。
- 前記コア層a)において、活性物質が、キトサン、アルギン酸又はアルギン酸塩、グレープフルーツ種子抽出物、レモンピール精油又はリモネン、ティーツリー油、シナモン油、タイム油、カプセル化エタノール及びそれらの混合物からなる群から選択される、請求項1~3のいずれか1つに記載の包装材。
- 前記活性物質が、前記層中に、ポリマーの重量に基づき、1~30重量%の量で含まれていることを特徴とする、請求項4に記載の包装材。
- 前記コア層が、5μmと80μmとの間からなる厚さを有する、フィルム又はシートである、請求項1~5のいずれか1つに記載の包装材。
- 前記コア層a)が、ポリエチレン、ポリプロピレン、ポリエチレン/ポリプロピレンコポリマー、ポリエステル、ポリ(乳酸)、ポリヒドロキシアルカノアート及びポリカプロラクトンからなる群から選択されるポリマー又はポリマーの混合物を含むことを特徴とする、請求項1~6のいずれか1つに記載の包装材。
- 塗膜b)が、ポリエチレンテレフタレート、ポリウレタン、ポリアクリラート、ニトロセルロール及びビニルポリマーから選択され、及び塗料又はラッカーの重量を参照して、3~30重量%の量でモントモリロナイト又はハイドロタルサイトを含むポリマーを含む塗料又はラッカーから得られる、請求項1~7のいずれか1つに記載の包装材。
- 前記塗膜b)が、0.4g/m2より大きく及び3g/m2より小さい重量を有することを特徴とする、請求項1~8のいずれか1つに記載の包装材。
- 前記塗膜c)が、40~60重量%の量でポリエチレングリコールでグラフト化したキトサン、1~6重量%の量でカプセル化エタノール、及び有機溶媒又は水を含むハイドロゲルを適用することにより得られる、請求項1~9のいずれか1つに記載の包装材。
- 前記有機溶媒が、酢酸アセチル、酢酸エチル及びイソプロピルアルコールから選択されることを特徴とする、請求項10に記載の包装材。
- 前記塗膜c)が、0.5と4g/m2との間の重量を有することを特徴とする、請求項1~11のいずれか1つに記載の包装材。
- 前記塗膜d)が、水中又は溶媒中で、ポリウレタン、ポリアクリラート又はポリエステルから選択されるポリマーを含むポリマーラッカーから得られることを特徴とする、請求項1~12のいずれか1つに記載の包装材。
- 前記塗膜d)が、0.3と4g/m2との間の重量を有することを特徴とする、請求項2に記載の包装材。
- 前記塗膜e)が、水中又は溶媒中で、ポリウレタン、ポリアクリル又はポリエステルポリマーを含むポリマーラッカー、キトサン、アルギン酸又はアルギン酸塩、グレープフルーツ種子抽出物、レモンピール又はリモネン精油、ティーツリー油、シナモン油、タイム油、カプセル化エタノール及びそれらの混合物からなる群から選択される活性物質を、該ポリマーラッカーの重量を参照して、15~60重量%の量で適用することにより得られることを特徴とする、請求項3に記載の包装材。
- 前記塗膜e)が、0.5と4.5g/m2との間の重量を有することを特徴とする、請求項15に記載の包装材。
- ベーカリー製品を包装するための、請求項1~16のいずれか1つに記載の包装材の使用。
- 請求項1~16のいずれか1つに記載の包装材からなり及びベーカリー製品を含む包装を含む、密封包装。
- フローパックの形態にある、請求項18に記載の密封包装。
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JP2005146267A (ja) | 2003-10-21 | 2005-06-09 | Unitika Ltd | ガスバリア性組成物および積層材料 |
JP2007056084A (ja) | 2005-08-23 | 2007-03-08 | Kureha Corp | 重合性単量体組成物、ガスバリア性フィルム、及びガスバリア性フィルムの製造方法 |
JP2018038311A (ja) | 2016-09-07 | 2018-03-15 | 雅子 小幡 | 梅干の製造方法 |
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US20190351661A1 (en) | 2019-11-21 |
US11110694B2 (en) | 2021-09-07 |
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EP3569644B1 (en) | 2022-05-11 |
CN110496762A (zh) | 2019-11-26 |
JP2020023354A (ja) | 2020-02-13 |
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PL3569644T3 (pl) | 2022-07-04 |
EP3569644A1 (en) | 2019-11-20 |
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