Plastic[Plastic?:Plastic sample cutting machine] bags are used for storage, packaging[packaging?:DCP-H series packaging sample cutter plotter], transportation, and shipping applications. Typically, industrial plastic bags are made of polymers such as polyvinyl and polyethylene, cellophane, and other specialty plastics.
Plastic bags are used in many different storage applications. Uses range from organizing machined parts or components to providing sterile, hermetic packing for food products, pharmaceuticals, chemicals, and biological materials. Clear polyethylene, polypropylene[polypropylene?:flatbed digital polypropylene/pp cutting machine], or polyvinyl plastic bags are used to package small components such as fasteners, electronics, or food products. Plastic bags can be configured with sliding lock zippers, or be sealed using a heated sealing element. They can also be used to shrink-wrap some items. With shrink wrapping, the application of heat causes the plastic to shrink around the object, creating an airtight seal.
