Production manner of the foaming heat contraction Characteristic integral multi-pack film which features that you manufacture film production manner of the foaming

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a foamable and heat-shrinkable multilayer film, capable of achieving high shrinkability and productivity when used in a shrink label for use in a heating container or the like, and superior in heat resistance and shrink-finishing properties, and to provide a foamable and heat-shrinkable label using, as a base film, the foamable and heat-shrinkable multilayer film obtained by the manufacturing method.;SOLUTION: A method of manufacturing a foamable and heat-shrinkable multilayer film produces, by a co-extrusion method, the foamable and heat-shrinkable multilayer film including at least a heat-shrinkable foam layer comprising a polystyrene based resin and a heat shrinkable non-foam layer comprising a polyester based resin including a dicarboxylic acid component and a diol component derived from ethylene glycol and 1,4-cyclohexanedimethanol.;COPYRIGHT: (C)2013,JPO&INPIT