Machine Direction Orientation From extruder casting rolls Rotation x1×2X3×4 Fjg.10.8
6 Machine Direction Orientation Rotation x 1 x 2 x 3 X 4 From extruder casting rolls Fig.10.8
Cross Direction Orientation Eⅹ trusion die Extruder UU Casting rolls Tenter Clips-Annealing Zone Fig10.8
7 Extruder Casting Rolls Annealing Zone Extrusion Die Tenter Clips Cross Direction Orientation Fig.10.8
Blown-fillm Die cross-section Bubble constantly pulled up Bubble Frost line Cooling air- Cooling air Die core Die lip adjusting bolts Die Body Plastic from extruder Blow-up air inlet Fig. 10.6
8 Bubble Blow-up air inlet Cooling air Cooling air Plastic from extruder Die lip adjusting bolts Die Body Die core Frost line Bubble constantly pulled up Blown-film Die Cross-Section Fig.10.6
Three-layer Extrusion Blow Mold Cut-away view film bubble material 1 material 2 material 3
9 Three-layer Extrusion Blow Mold Cut-away view material 1 material 2 material 3 film bubble
Blown Film Line with Slitter Upper nip rolls→→e Collapsing frame Plastic film bubble Slitter Dual roll Internal bubble cooling winder Air ring Circular Extruder die Fig.10710
10 Extruder Circular die Air ring Internal bubble cooling Plastic film bubble Collapsing frame Upper nip rolls Slitter Dual roll winder Blown Film Line With Slitter Fig.10.7