G C 1040 Lecture Notes - Lecture 3: Polyethylene Terephthalate, Chobani, Polyethylene

• School: Clemson University
• Department: Graphic Communications
• Course: G C 1040
• Professor: Edlein

Document Summary

Pete, pet (polyester)--polyethylene terephthalate, clear, tough, good barrier, ex: frozen food bag, oreo bag. Hdpe--high density polyethylene, chemical resistant, ex: trash bag. Ldpe--low density polyethylene, flexible, tough, resists chemicals and oils, ex: bread bag. Ps--polystyrene, stiff, moisture barrier, lightweight, rigid, ex: styrofoam chickfila cup. Shrink film--the film shrinks onto the product, must make sure the printing on the shrink film won t be distorted. Coffee--want it to feel papery, want the smell of the copy to come through. Coextrusion--put different elements into the hopper and then they melt/mix together. Corona treatment--creates a little explosion on the surface of the plastic as it rolls past, crashing electrons together and creates plasma eruption on substrate.