PT ZONE: Film Extrusion

PT Article LLDPE Replaces Paper In Additive Packaging
The new packaging system replaces paper bags with more robust LLDPE bags. More (+)
EXTRUSION: Versatile IR Gauge For Film, Sheet
New unit from NDC is suited for all types of film/sheet extrusion. To debut at K2016. More (+)


MOST RECENT CONTENT: Film Extrusion

EXTRUSION: Gamut of Technologies to Debut at K 2016 in Film, Sheet

Reifenhauser to debuts new die, flattening/orientation systems, feedblock and more at K 2016.

Connecticut Joins Film Recycling Initiative

A major focus of the new partnership will be to increase voluntary participation in the recycling of plastic bags, wraps and other film packaging at supermarkets, grocery stores and other retail locations.

Davis-Standard Expanding in Connecticut

Extrusion systems supplier adding 15,000 ft2 for manufacturing in Pawcatuck.

Food Packaging Should Remain Strong

But industrial markets could slip.

Make Plans to Attend Extrusion 2016 Conference

Event for all extrusion processors will be held Dec. 6-8 in Charlotte.

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OVERVIEW:
Film Extrusion

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Film is divided into two subcategories: cast, or flat film; and blown film. In the former, hot plastic is extruded through a flat, slit die onto a polished chill roll where it is quenched, pulled to a second set of rolls to cool the other side, then wound. In blown film, plastic is extruded into a cylindrical die, then inflated to form a bubble, which is ultimately cooled and collapsed. Films can be either single or multi-layer. Most are based on polyethylene. Bags are one primary example of film extrusions.


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