POLYESTER FILM FOR COATING CAN MATERIAL AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a polyester film for coating a can material capable of rigidly adhering to a metal plate for a can by heating at a high temperature for a short time and clarifying a print in printing, and to provide a method for manufacturing the same. SOLUTION: The polyester film 1...

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Bibliographische Detailangaben
Hauptverfasser:	HONMA YASUO, MIYAZAKI SHUNZO, TAMURA MICHIYA, MATSUSHIMA KOJI, YOSHIZAWA HIDEYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON 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 GENERAL PROCESSES OF COMPOUNDING 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 METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polyester film for coating a can material capable of rigidly adhering to a metal plate for a can by heating at a high temperature for a short time and clarifying a print in printing, and to provide a method for manufacturing the same. SOLUTION: The polyester film 1 comprises an adhesive layer 5a containing a polyester resin and an aminoplast resin by a weight ratio of 70/30 to 90/10 and provided on one side surface. The film 1 further comprises a cured overcoating layer 3 provided on its opposite surface. The film 1 also comprises a print layer 4 made of a polyester polyurethane resin and a polyisocyanate resin between a film 2 and the layer 5a and containing a pigment. The film 1 also comprises a size coating layer made of the same resin as that of the layer 4 between the layer 4 and the layer 4a and containing no pigment. In this case, the layer 5a may contain a titanium oxide.