PT ZONE: Film Extrusion

RECYCLING: High-Output Melt Filters For Recycling and Film/Sheet
Filters rely on a rotating, cylindrical screen with millions of conical holes. More (+)
Mergers in Extrusion, Thermoforming
Brown Machine, Lyle Industries team up. Also NDC and Beta LaserMike. More (+)


MOST RECENT CONTENT: Film Extrusion

Switch to AC Drives & Save Energy, Maintenance Costs

Smaller, cooler AC packages can be retrofitted to existing lines to slash energy use and maintenance costs.

Processor gives employees the time, resources to “go back to school” at work

Consistent production is the number one priority at any plastics processing plant, but how much do most companies do to train technicians before they hand over the keys to hugely expensive (and complicated) machines that are at the heart of production?

Follow These Tips to Clean Your Blown Film System

Proper purging procedures can avoid the need to shut down the line for cleaning. Here's one expert's advice.

INJECTION MOLDING/BLOW MOLDING/EXTRUSION: Plastics Spotlight Shines on Taiwan This September

Eight Taiwanese machinery suppliers preview their exhibits at the upcoming national show.

Taiwan Takes Its Place Among Machinery Elite

Overshadowed in geographic size and economic output by its neighbor to the east, Taiwan punches above its plastics weight class and is looking to become more self sufficient in its machinery offerings.

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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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Novatec shares their knowledge of dryers and drying techniques.

Product Announcements

RECYCLING: High-Output Melt Filters For Recycling and Film/Sheet
Ettlinger Kunststoffmaschinen GmbH 9/9/2014
INJECTION MOLDING/BLOW MOLDING/EXTRUSION: Plastics Spotlight Shines on Taiwan This September
Fortune International Inc. 7/21/2014
EXTRUSION: Feedblock Tuning Inserts Keep Lines Running
Extrusion Dies Industries LLC 4/24/2014
EXTRUSION: Process Solid, Foam Film With Same Tooling
Macro Engineering & Technology Inc. 4/23/2014
EXTRUSION: Feedblock Tuning Insert Lets Processors Keep Running
Extrusion Dies Industries LLC 3/28/2014

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