陕西科技大学：《包装技术基础 Fundamentals of Packaging Technology》课程PPT教学课件（英文版）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

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

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

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

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

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

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

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

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

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

6 Machine Direction Orientation Rotation x 1 x 2 x 3 X 4 From extruder casting rolls Fig.10.8

6 Machine Direction Orientation Rotation x 1 x 2 x 3 X 4 From extruder casting rolls Fig.10.8

7 Extruder Casting Rolls Annealing Zone Extrusion Die Tenter Clips Cross Direction Orientation Fig.10.8

7 Extruder Casting Rolls Annealing Zone Extrusion Die Tenter Clips Cross Direction Orientation Fig.10.8

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

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

9 Three-layer Extrusion Blow Mold Cut-away view material 1 material 2 material 3 film bubble

9 Three-layer Extrusion Blow Mold Cut-away view material 1 material 2 material 3 film bubble

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

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