LAMINATED MATERIAL AND METHOD FOR MANUFACTURING LAMINATED CAN LID

摘要

PROBLEM TO BE SOLVED: To enhance the adhesion of a laminated film and a can lid material plate at the time of production of a laminated can lid and increasing the degree of crystallization of the laminated film to enhance flavor aptitude. SOLUTION: The relation of the degree Xc of crystallization of the base material layer of the laminated film and the degree Xc' of crystallization of the base material layer of the laminated film after the covering the can lid material plate with the laminated film is set to Xc<Xc', and the relation among temperature T1 for covering the can lid material plate with the laminated film, the melting temperature Tm of the base material layer of the laminated film and the melting temperature Tm' of an adhesive layer is set to Tm'<T1< Tm-18 deg.C. The covering speed of the laminated film to the can lid material plate is set to 60 m/min or less.