Extrusion 7-2016

Setting new standards in film extrusion

PP, PS and PET are the dominant materials in the food pakkag-

ing segment. They are extruded into film in single and multi-

layers. To increase economic efficiency, additional ground mate-

rial from the in-house thermoforming production and recycled

materials are used. Especially in difficult markets with strong

competition, it is helpful to differentiate with special characte-

ristics. Here, too, better quality always pays off.

Since the production cost of the film is largely determined by

the raw material (approx. 65 percent) and not primarily by the

investment in the system, it is extremely important to focus on

high-quality equipment with operational security, which, above

all, saves raw materials and can be quickly readjusted. Drying

PET via infrared technology saves time and energy. Up to 100

percent ground material can be directly processed in the infra-

red dryer. PP and PS can be processed without a drying process.

The combination of well-tried and simple system setup paired

with advanced Breyer technologies that save time and money

makes it possible: fast startup due to the special melt pump

control and fast adjustment of the film thickness with the

BREYER

fast&easy polishing nip

make the extrusion economi-

cally efficient. The required nip can be adjusted within seconds

Film Extrusion

Extrusion 7/2016

in a reproducible way, resulting in interesting savings possibili-

ties for the manufacturer especially in the price-sensitive pa-

ckaging market. The personnel profits from a user-guided

touch-screen control and the user- and maintenance-friendly

system technology. In addition, the technology allows for the

Perfect Flat Film

for Successful

Thermoformed

Packaging

total performance of 1,100 kg/h. For the

functional retrofitting of the system,

Breyer offers a number of progressively

conceived building blocks that save time,

raw materials and, hence, money all of the

required preconditions for economically

efficient film extrusion.

On the Breyer ThermoFlex system in

co-extrusion version for 3-layered film, the

fast startup of a PET film system and quick

changeover to different film thicknesses is

possible. Pure recycling material can be

processed with a 120 mm single-screw

extruder and a 60 mm co-extruder with a