3 layers BRUCKNER BOPP / BOPET tenderframe plant

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.

Machine Code	BO54
Manufacturer	BRUCKNER
Year	2003
Number of layers	3
Film structure	ABC
Material	BOPP
Output	3000Kg/h
Width (mm)	8200
Extruder 1 Description	Single scew extrruder, 105mm, gravimetric doser Schenk
Extruder 2 Description	Twin screw extruder
Extruder 3 Description	Single scew extrruder 105mm, gravimetric doser r Schenk
Head description	Make Simplas; width 1140, gap 1,7-3,5mm, air blade and vacuum box
Die width	1140
Thickness controll system	Automatic through thermo bolts, Make Thermofischer
Chill roll unit	diam 2800mm in water immersion
MDO description	Preheating section: 16 rollers 614mm; Stretching rollers diam 150mm; anealling section 4 rollers 614mm
TDO description	Thermal oil heated. 5 preheating sections tot 21m; 5 stretching sections tot 15m; 5 anealling secton 16,5m. Cips fype FOK4.4.4 sliding. Clip's width 115mm. 1110 clips each chain
Corona treatment	Softal
Rewinder width	8200 mm net
Rewinder description	Turret type with automatic reel change
Slitter	included tith 14 couples of winding arms
Additional information	Erema regranulatro for edges and start ups