CPP (Cast PolyPropylene) Film is produced simply by
extruding resin onto a chill roller. there is no stretching but the film does
have to be "cured" so allowing the slip additives to migrate to the
surface. It can be produced as a mono or coex film with different copolymer combinations
to alter rigidity and mechanical properties. It normallly comes as standard with
1 side corona treatment.
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- CPP for Lamination. Often CPP
is laminated to another substrate such as PET or Aluminium film to provide a heat
sealable medium to moulded PP containers for lidding applications.
CPP for Bag making. Supplied as SWS
(single wound sheet) or centre or J-folded for simple side weld bags for such
as fresh produce, textile garments and greetings cards. Good optical properties
and side weld strength. Also find use in industrial process applications.
- Metallised CPP typically
for magazine bags as above
pigmented CPP films for the same applications as above and also for in-mould