《包装技术基础》(英文版) 第8课 软包装复合材料

Lesson 8 Flexible Packaging Laminates 第8课软包装复合材料

1 Flexible Packaging Laminates Lesson 8 第8课 软包装复合材料

Plasticating Extruder 产 Gear reducer Feed hopper Heater bands eed throat Exit port Hopper throat Screw Cooling jacket Variable speed motor Fig.10.2 2

2 Plasticating Extruder Exit port Gear reducer Variable speed motor Feed throat Feed hopper Hopper throat Cooling jacket Screw Heater bands Fig. 10.2

Cast Film and sheet Extrusion Extruder Extrusion Die Adjustable Pressure (Restrictor) Bar Adjustable Die Lips Fig.1043

3 Adjustable Die Lips Extrusion Die Adjustable Pressure (Restrictor) Bar Extruder Cast Film and Sheet Extrusion Fig.10.4

Three-Layer Coextrusion Extruder #1 Material #f1 Extruder #2 Material #2 Material #3 Extruder #3 g10.9

4 Extruder #1 Extruder #2 Extruder #3 Material #1 Material #2 Material #3 Three-Layer Coextrusion Fig.10.9

Extrusion Cast Film Line Layout Eⅹ trusion die Chill roll Material roll Extruder Edge trimmer ig.10.5

5 Extrusion Cast Film Line Layout Extruder Extrusion die Chill roll Edge trimmer Material roll Fig.10.5

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