2000 Volume 86 Issue 3 Pages 171-175
Polyester film laminated steel for can container will gradually replace lacquer coated steel sheet from environmental consideration and cost reduction. The process is characterized by partial melting of the film on the steel surface during lamination by pressing the supplied films between both sides of heated steel and a couple of cooled rubber rolls.
At present, most of polyester films used for the can containers are biaxially oriented films and various characteristics of film laminated steel for can use are strongly influenced by the degree of biaxial orientation of the laminated film.
Therefore, this report deals with the result of an experiment regarding variations of the degree of biaxial orientation with several polyester films, and thermal analysis of these polyester films by means of Differential Scanning Calorimeter (DSC).
Finally, from these experiments, we found that it is possible to estimate the variation of the degree of biaxial orientation during lamination by means of thermal analysis.
