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A roll of plastic wrap. Plastic wrap, cling film, Saran wrap, cling wrap, Glad wrap or food wrap is a thin plastic film typically used for sealing food items in containers to keep them fresh over a longer period of time. Plastic wrap, typically sold on rolls in boxes with a cutting edge, clings to many smooth surfaces and can thus remain tight ...
Metallised film. Metallised films (or metallized films) are polymer films coated with a thin layer of metal, usually aluminium. They offer the glossy metallic appearance of an aluminium foil at a reduced weight and cost. Metallised films are widely used for decorative purposes and food packaging, and also for specialty applications including ...
Shrink wrap is applied over or around the intended item, often by automated equipment. It is then heated by a heat gun or sent through a shrink tunnel or oven for shrinking. Shrink wrap can be supplied in several forms. Flat rollstock can be wrapped around a product, often with heat sealing to tack the film together.
Stretch wrapor stretch film, sometimes known as pallet wrap, is a highly stretchable plastic filmthat is wrapped around items. The elastic recovery keeps the items tightly bound. In contrast, shrink wrapis applied loosely around an item and shrinks tightly with heat. While it is similar to plastic food wrap, it is not usually made of material ...
Infobox references. Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar.
Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces. Plastic films are used in a wide variety of applications. These include: packaging, plastic bags, labels ...
Along with the Manila Metro Rail Transit Systemand the Metro Commuter Lineof the Philippine National Railways, the system makes up Metro Manila's rail infrastructure. The LRT's 37.3-kilometer-route (23.2 mi) is mostly elevated and consists of two lines and 33 stations. Line 1, also called the Green Line (formerly known as the Yellow Line ...
Polyolefin. A polyolefin is a type of polymer with the general formula (CH 2 CHR) n where R is an alkyl group. They are usually derived from a small set of simple olefins (alkenes). Dominant in a commercial sense are polyethylene and polypropylene. More specialized polyolefins include polyisobutylene and polymethylpentene.