FOOD BAGS DIRECT

Polypropylene bags are manufactured with a plastic polymer that is stronger and more rigid than polyethylene which is generally used to manufacture polythene bags also know as poly bags. Polypropylene protects absorbent materials such as card and paper from vapour and moisture because it is itself non-porous... Cellophane bags are made with a thin and transparent sheet made of regenerated cellulose. Its low permeability to air, oils, greases, and bacteria makes it useful for food packaging... In the manufacturing process, an alkaline solution of cellulose fibres (usually wood or cotton) known as viscose is extruded through a narrow slit into an acid bath. The acid regenerates the cellulose, forming a film. Further treatment, such as washing and bleaching, yields Cellophane.

Primary location: United Kingdom