Plastic film is a thin continuous polymeric material. Plastic films are used in a wide variety of applications, all over the world.
These include: packaging, plastic bags, labels, building construction, landscaping, electrical fabrication, photographic film, film stock for movies, video tape, etc. The list goes on and on..
Paper is a thin material produced by pressing together moist fibres of cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets. It is a versatile material with many uses, including writing, printing, packaging, cleaning, and a number of industrial and construction processes.
Aluminium is used for packaging as it is highly malleable. Aluminium foil acts as a total barrier to light and oxygen, odours and flavours, moistness, and germs, and so it is used broadly in food and pharmaceutical packaging, including long-life packs (aseptic packaging) for drinks and dairy goods.