POLYESTER FILM

To provide an environment consideration type polyester film having excellent dimensional stability which is suitable for producing a gas barrier film with an inorganic thin film.SOLUTION: There is provided a polyester film having a laminate structure comprising at least two layers, wherein the lamin...

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Bibliographische Detailangaben
Hauptverfasser:	HARA TOMOAKI, SUZUKI TOMOHIRO, SHIINO MASATAKA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide an environment consideration type polyester film having excellent dimensional stability which is suitable for producing a gas barrier film with an inorganic thin film.SOLUTION: There is provided a polyester film having a laminate structure comprising at least two layers, wherein the laminate structure has a polyester layer (X) containing a chemical-recycled polyester and the shrinkage rate after hot water treatment at 125°C for 30 minutes is 0.7% or less both in the longitudinal direction (MD) and transverse direction (TD).SELECTED DRAWING: None 【課題】無機薄膜を備えるガスバリア性フィルムの製造に好適な、優れた寸法安定性を有する環境配慮型ポリエステルフィルムを提供することにある。【解決手段】少なくとも２層からなる積層構造であり、前記積層構造は、ケミカルリサイクルポリエステルを含むポリエステル層（Ｘ）を有し、１２５℃、３０分間熱水処理したときの収縮率が、長手方向（ＭＤ）及び幅方向（ＴＤ）ともに０．７％以下である、ポリエステルフィルムである。【選択図】なし