SHEET MATERIAL FOR SEALED CONTAINER

PROBLEM TO BE SOLVED: To provide a sheet material for sealed container having a seal layer formed by a coating film of a thermoplastic resin which improves a heat seal strength.SOLUTION: There is provided a sheet material for sealed container formed from a laminate which has a base material layer 12...

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Bibliographische Detailangaben
Hauptverfasser:	TABUKA SADATERU, MURAKAMI TOMOYUKI, NAKAMOTO SAKI, SAEKI KAZUHIRO, SHIMADA NOBUHISA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sheet material for sealed container having a seal layer formed by a coating film of a thermoplastic resin which improves a heat seal strength.SOLUTION: There is provided a sheet material for sealed container formed from a laminate which has a base material layer 12 and a seal layer 14 formed from a coating film that mainly contains a thermoplastic resin 14a, where the seal layer 14 contains fine particles 14b having a melting point higher than that of the thermoplastic resin, and an average particle size of the fine particles 14b/a thickness of the seal layer 14 is 0.5-3.0.SELECTED DRAWING: Figure 1 【課題】熱可塑性樹脂の塗膜により形成されたシール層を有する密封容器用シート材において、そのヒートシール強度を改善する。【解決手段】基材層１２と、熱可塑性樹脂１４ａを主体とする塗膜により形成されたシール層１４とを有する積層体からなり、前記シール層１４が前記熱可塑性樹脂よりも融点の高い微粒子１４ｂを含有しており、且つ前記微粒子１４ｂの平均粒子径／前記シール層１４の厚さが０．５〜３．０であることを特徴とする密封容器用シート材。【選択図】図１