CAST FILM EXTRUSION There are two
techniques of making film. One is the Blown Film Technique. The other is the Cast Film Technique. The cast film is more amorphous then the blown film which makes a difference in quality between the two processes. Also the transparency becomes deeper by the cast film process. Axon manufactures machinery for both processes.
Please
check layer-designs under film blowing up to 7-layers with 5 extruders. The Cast Film
Extruder Line differs from Coating and Laminating Lines by free-operating
Casting-Rollers without any supporting arrangement.
The Cast Film
Extruder Line consist of one or two free-rolling Casting and Polishing
Rollers depending on polishing one or two sides of the film.
We are manufacturing
Cast Film Extruder Lines both for monofilm and multilayer barrier-film.
Cast Monofilms
are more amorphous then blown film and is used where an amorphous film
quality is of importance.
Multilayer Cast
Film is used for thermoformed food packaging and for medical and pharmaceutical
packaging. Please ask for the AXON Newsletter No 19 for further details.
Depending on
film thickness and polymer characteristics, the film line can be provided
with a surface winder or alternatively a central shaft winder.
The AXON Cast
Film Extruder Lines can be completed with an additional stretching-machine
line for the manufacturing of tapes and ribbons.
The smallest
AXON Cast Film Extruder Line has a 160 mm roller width. With an 18 mm or
25 mm extruder it is a perfect Lab- and Pilot-Plan unit and with a larger
extruder it is used for Cast Film production up to a width of 150 mm. We
manufacture these lines up to a roller width of 2 meter.
