PT ZONE: Film Extrusion

Get Ready for The Extrusion 2015 Conference
Plastics Technology will hold the first-ever conference next November devoted to all areas of extrusion processing. More (+)
How Characterizing and Modeling Chemical Foaming Agents Can Help Your Process
Knowing ahead of time what will happen when your CFA produces gas can help you design or improve your process to boost quality and cost effectiveness. More (+)


MOST RECENT CONTENT: Film Extrusion

Get Ready for the Extrusion '15 Conference

Two-day event slated for Nov. 2-3 in Charlotte.

Bag Bans Embolden Activists

Whether or not it was the goal initially, California’s statewide ban of plastic bags has given environmental groups the confidence and momentum to broaden their target range for regulation.

New Name, Brand Structure for Hilex Poly

Film and bagmaker and three sister companies will now be brands under Novolex umbrella.

New Extrusion Equipment Supplier Combines U.S. Management with Chinese Production

Starting up in 2011, Uway Extrusion has begun its commercial push this year, with plans to exhibit at NPE2015 next March.

Dynisco Extends Machinery Directive Compliance to 4-20mA Pressure Sensors

Billed as 'ideal choice. for extrusion OEMs and processors that need to comply with the European standard.

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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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Watch video, download datasheets and more in the Plastics Conveying Knowledge Center.

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Novatec shares their knowledge of dryers and drying techniques.

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