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A pallet loaded with corrugated fiberboard boxes being stretch wrapped. Stretch wrap or stretch film, sometimes known as pallet wrap, is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. In contrast, shrink wrap is applied loosely around an item and shrinks tightly with heat.
Shrink wrap is commonly used as an overwrap on many types of packaging, including cartons, boxes, beverage cans and pallet loads. Foam cushioning can be held securely in shrink film, eliminating use of a traditional corrugated box. [5]
Plastic wrap, typically sold on rolls in boxes with a cutting edge, clings to many smooth surfaces and can thus remain tight over the opening of a container without adhesive. Common plastic wrap is roughly 0.0005 inches (12.7 μm) thick.
A sleeve is first produced on a specialised extrusion machine. It must be produced to a very high standard (for decoration purposes) and also to tight tolerances, compatible with automated processes after extrusion. Once the sleeve is produced, the tube head is fitted using an automated heading machine.
Heat tunnel for shrink wrapping bakery goods in-line heating of shrink bands on plastic bottles of water Machinery to apply and shrink an overwrap. A shrink tunnel or heat tunnel is a heated tunnel mounted over or around a conveyor system.
Some cushion products are flowable and are packed loosely around the items in the box. The box is closed to tighten the pack. This includes expanded polystyrene foam pieces (foam peanuts), similar pieces made of starch-based foams, and common popcorn. The amount of loose fill material required and the transmitted shock levels vary with the ...
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