METHOD OF EVALUATING ADHESION STRENGTH BETWEEN BASE MATERIAL PLASTIC FILM AND METAL LAYER OF METAL VAPOR-DEPOSITION PLASTIC FILM

摘要

PROBLEM TO BE SOLVED: To provide an adhesive strength evaluation method for metal vapor-deposition plastic films, which enables simple and accurate measurement of adhesion strength between a metal layer and a base material plastic film.;SOLUTION: Provided is a method of evaluating adhesion strength between a base material plastic film and a metal layer of a metal vapor-deposition plastic film having the metal layer formed on one surface of the base material plastic film. The method of evaluating adhesion strength between the base material plastic film and the metal layer of the metal vapor-deposition plastic film involves producing a laminate comprising a thermal fusion film and a plastic film thermal-compression bonded on a metal layer side of the metal vapor-deposition plastic film in the described order, and peeling the metal layer from the base material plastic film, thereby measuring the adhesion strength with a standard deviation of no greater than 0.25 N/15 mm.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT