The invention relates to a blown film coextrusion process.

Also disclosed are processes for stretch wrapping and forming blown film.

This invention relates to a method of, and apparatus for, controlling the diameter of a blown film, typically a cellulose blown film (84), during manufacture.

Further, the present invention relates to a multilayer film or a laminate comprising such a blown film.

The up film is BOPP/PE-TIE-PVDC-TIE-PP-PE which is co-extruded by the multi-layer flow or inflation film and formed by the dry of the solvent-free; the down film is the PP-TIE-PVDC-TIE-PE which is co-extruded by the multi-layer flow or inflation film.

Additionally, the present invention relates to a process for producing such a blown film, multilayer film or laminate.

The blow molding comprises both blown film and blown hollow product.

The annular die has particular, but not limited, application as a blown film die.

An air quenched blown film made from the inventive composition exhibits a value for gloss greater than the value for gloss exhibited by an air quenched blown film made solely from the ethylene-based copolymer.

Blown film made from the blend will have an unexpectedly good set of optical properties.

The blown-film tube is slit to form a film sheet that may be deformed elastically in a machine direction.

The present invention also relates to a method of forming a collapsible tube container from blown film polymeric material or blown film multi-layer polymeric materials, the tube comprising a side seam-weld or join.

For blown film machine, please also specify the desired film width and thickness

For blown film machine, please also specify the desired film width and thickness.

The ground film is then dried and compacted without addition of water into granulated objects of near-virgin quality blown film product.