Barrier film is a type of film material with the functions of thermal insulation, waterproofing and moisture resistance. It usually consists of a multi-layer structure made by extruding a material with strong gas barrier properties and a polyolefin with strong heat-seal…

The year 2004 witnessed the rapid development of cast film in China. The figures prove it: the market demand for cast film in China increased to approximately 270,000 tonnes.

Cast film, is a non-stretching, non-directional, flat extruded film, which is produced by melt extrusion quenching. There are single layer salvation and multilayer co-extrusion salvation two ways. Compared to blown film, it is characterised by fast production speeds,