Brückner 5 layers BOPP / BOPET tenderframe plant

Number of layers 5
Overhaul/renovation Upgraded in 2002- PLC and
speed control, new winders
Film structure ABCBD
Material BOPP
Output max output 2140 Kg/h ,
Max. Line Speed (Film) - 200mpm
Name Plate Capacity - 8.9 kT
Width (mm) 6000
Extruder 1 Layer C, Main-Extruder - Barmag, 1520 K/h
Extruder 2 Layer B Intermediate-, 425 K/h
Extruder 3 Layer A - Barmag, 100 K/h
Extruder 4 Layer D Barmag, output 95 K/h
Head description Make EDI
Die width 940mm
Thickness controll system ThermoFisher Prometium 147
Chill roll unit Diameter 2000 mm in water bath, air knife
MDO description Pre Heating -14, Stretching -6, Aannealing -2
TDO description Bruckner FOK 4.4.3, length PH-17m,
ST-15m, AN-6.3m
Corona treatment Shermann GT140,
Corona - bottom side ( water bath side)

Note
Feeding System / Dosing Unit -Volumetric screws
- Ext. + Coex 1-2, Loss in weight K-TRON on Coex 3
Mill roll cores: 210

Biaxially oriented polypropylene (BOPP) and
Biaxially oriented polyester (BOPET) are commonly produced in
tender-frame lines. In these lines material is melted through a
flat extrusion die (T-die) and solidified onto a cooled roller.
Material is then stretched in machine direction in an MDO.
Thereafter material is stretched in transversal direction in
a TDO. These processes deliver a molecule orientation in
both axes, this enhances many of their properties,
particularly the mechanical, impact, barrier and
optical properties.