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.
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- Machine Code
- BO108
- Manufacturer
- DMT
- Year
- 2003
- Number of layers
- 5
- Overhaul/renovation
- Major 2012 upgrade increasing resin feed capacity and screen changer size
- Film structure
- ABCDE
- Material
- BOPP
- Output
- 5900kg/h
- Width (mm)
- 6600
- Extruder 1 Description
- A - make Mitsubishi, screw diameter 75mm, L/D unit for bath/air-knife side and caster external layer, 150 kg/h
- Extruder 2 Description
- B- make Mitsubishi, screw diameter 150mm, L/D unit fbath and caster internal tie layer, 550 kg/h
- Extruder 3 Description
- C- main extruder, make Mitsubishi, screw diameter - 200 mm, 17.1 L/D, cascade unit rated at 4,500 kg/h -Secondary screw: 250 mm, 20.3 L/D
- Extruder 4 Description
- D- make Mitsubishi, screw diameter 150mm, L/D unit fbath and caster internal tie layer, 550 kg/h
- Extruder 5 Description
- E - make Mitsubishi, screw diameter 75mm, L/D unit for bath/air-knife side and caster external layer, 150 kg/h
- Head description
- EDI 5-layer die
- Die width
- 1000mm
- Thickness controll system
- -Cast film thickness gauging: EGS Strontium 90 system -Final film thickness gauging: EGS scanner feedback control system with auto flex die
- Chill roll unit
- width 2150mm
- MDO description
- Preheat rolls: 16 rolls Stretch rolls: 5 rolls Annealing rolls: 4 rolls
- TDO description
- Preheat section length: 24 m Stretch section length: 16 m Annealing section length: 12 m Chain-track system: DMT monorail chain-track
- Corona treatment
- Softal corona treatment units fitted top and bottom
- Rewinder description
- Maximum roll OD on winder: 1,170 mm - Mill roll winding system: contact type with closed-loop, step-wise movement control - Core size: 450 mm cores - Total cores: 64
- Note
- Line storage silos: 6 silos Total silo storage capacity: 600 tons K-Tron feeding/dosing system with main AEC batch blending for co-extrusion
| Machine Code | BO108 |
| Manufacturer | DMT |
| Year | 2003 |
| Number of layers | 5 |
| Overhaul/renovation | Major 2012 upgrade increasing resin feed capacity and screen changer size |
| Film structure | ABCDE |
| Material | BOPP |
| Output | 5900kg/h |
| Width (mm) | 6600 |
| Extruder 1 Description | A - make Mitsubishi, screw diameter 75mm, L/D unit for bath/air-knife side and caster external layer, 150 kg/h |
| Extruder 2 Description | B- make Mitsubishi, screw diameter 150mm, L/D unit fbath and caster internal tie layer, 550 kg/h |
| Extruder 3 Description | C- main extruder, make Mitsubishi, screw diameter - 200 mm, 17.1 L/D, cascade unit rated at 4,500 kg/h -Secondary screw: 250 mm, 20.3 L/D |
| Extruder 4 Description | D- make Mitsubishi, screw diameter 150mm, L/D unit fbath and caster internal tie layer, 550 kg/h |
| Extruder 5 Description | E - make Mitsubishi, screw diameter 75mm, L/D unit for bath/air-knife side and caster external layer, 150 kg/h |
| Head description | EDI 5-layer die |
| Die width | 1000mm |
| Thickness controll system | -Cast film thickness gauging: EGS Strontium 90 system -Final film thickness gauging: EGS scanner feedback control system with auto flex die |
| Chill roll unit | width 2150mm |
| MDO description | Preheat rolls: 16 rolls Stretch rolls: 5 rolls Annealing rolls: 4 rolls |
| TDO description | Preheat section length: 24 m Stretch section length: 16 m Annealing section length: 12 m Chain-track system: DMT monorail chain-track |
| Corona treatment | Softal corona treatment units fitted top and bottom |
| Rewinder description | Maximum roll OD on winder: 1,170 mm - Mill roll winding system: contact type with closed-loop, step-wise movement control - Core size: 450 mm cores - Total cores: 64 |
| Note | Line storage silos: 6 silos Total silo storage capacity: 600 tons K-Tron feeding/dosing system with main AEC batch blending for co-extrusion |
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