Transcription of Flat Die Extrusion Cast Film, Coating & Laminating - TAPPI
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Flat Die ExtrusionCast Film, Coating & LaminatingAndy ChristiePrincipal EngineerOptex Process Solutions, Consumer Packaging Solutions for Barrier Performance CourseOutline Flexible Packaging Structures Flat Die Co- Extrusion Film Formation Web Handling, Conditioning, Winding TroubleshootingWhy Flexible ? Serves multi-functions Containment Portion Protection Barrier Presentation Promotion Identification Instruction Convenience Preparation Security Tamper Evidence Branding - RecognitionWhy Flexible ? Performance by design Mono Layer Film Co-extruded Film Coated / Metalized Film Lamination Paper / Film / Foil / AdhesiveExamples CPP Single Candy Twist Wrap HDPE/Sealant Dry Mix / Cereal PP/PP+Recycle/LDPE Cheese Film LDPE/Tie/Nylon/Tie/LDPE Meat Pack BOPET/Nylon/Ionomer Frozen Veg Paper/LDPE/Foil/Sealant Dry Mix BOPET/LDPE/Foil/Sealant Condiment PP/Tie/EVOH/Tie/PP Juice BOPET/LDPE/metalized/Sealant Coffee LDPE/Board/LDPE/Foil/EAA/LDPE/Sealant - JuiceWhy Cast Film?
Chiller Sizing Calculations Ton = ((Q x 0.75 x (T2-T1)) / 12000) x 1.1 Q = (Ton x 12000) / (0.75 x (T2-T1) x 1.1) Where: Ton = tonnage of refrigeration required or available at 50 degree F Q = Total extruder output T2 = Melt temperature (F degree) T1 = Strip temperature (F degree)
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