Common application issues of flexible composite films include the following aspects:
1、 Appearance issues: including color change, bubbles, wrinkles, delamination, etc.;
2、 Composite strength issues: including poor strength after curing (even delamination), aluminum or ink transfer, poor strength at heat sealing (even delamination), strength deterioration after high-temperature sterilization (even delamination), significant strength reduction after storage at room temperature or high temperature (even delamination), etc.;
3、 Application issues: Depending on the application scenario of the composite film, there may generally be poor resistance to media, appearance color change within the shelf life, and composite strength reduction, etc.
