PT ZONE: Film Extrusion

PT Article PE Film Market Analysis: T-Shirt Bags
It's a huge business that will grow modestly over the next three years even in the face of environmental obstacles. More (+)
EXTRUSION AND COMPOUNDING AT NPE: Flexibility, Speed, Quality Rule the Day
Extrusion processors need more—of everything—to compete. And suppliers responded in force in Orlando. More (+)


MOST RECENT CONTENT: Film Extrusion

Keep Your Screen Changer In the Flow

The screen changer plays an essential role in generating quality extrudate. Here’s what you need to know to keep it functioning properly.

Bag ‘Commander’ Brings Innovation And Service to Can-Liner Aisle

Aluf is a huge supplier of industrial and consumer can liners that—despite its size—is fast, flexible, and customer responsive.

PE Film Market Analysis: Shrink Film

Market growth potential for this film segment is described by most as ‘slow but steady.’

Italian Equipment Makers Aim For U.S. Expansion

Expansion plans by some Italian plastics equipment manufacturers are focused on North America

PE Film Market Analysis: Stretch Film

The stretch film market continues to be one of the largest and most rapidly evolving polyethylene PE film markets.

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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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