3 Layer Barrier Films

It has been recognized that 3-layer films have limits,such as with oxygen barrier,
or print quality.To solve this issue,many 3 -layer films were used as part of an
adhesive lamination to reverse-printed films to achieve higher quality structures,
eigther to other 3 layer films and foil for improved barrier properties.
Conventional wisdom would say if three layers are good,five layers must better.
Though this is not necessarily true.it can be said that five layers can offer more options and flexibility over 3 layers.