PT ZONE: Film Extrusion

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. More (+)
Bloomer Expands to Barrier Blown Film
Custom processor of cast embossed film buy barrier blown film leader Optimum. More (+)


MOST RECENT CONTENT: Film Extrusion

BLOWN FILM: Foam Specific Layers In Coex Blown Film

Macro applies technology originally developed for cast to blown film.

SPE Extrusion Group Annnounces Two New Scholarships

Division scholarships honor long-time members Steward, Gould

MATERIALS: Conductive Extrusion Compounds for ESD

Available in PVC, TPU, TPE, PC, PE, PP, PS, and ABS.

RECYCLING: High-Output Melt Filters for Recycling and Film/Sheet

Model ERF 500 is designed for max. throughput of more than 11,000 lb/hr.

Formulating LLDPE/LDPE Blends For Abuse–Resistant Blown Film

A new study shows how the type and amount of LDPE in blends with LLDPE affect the processing and strength/toughness properties of blown film. Data are shown for both LDPE-rich and LLDPE-rich blends.

View More Content in This Zone  |  RSSRSS  |  AtomAtom

OVERVIEW:
Film Extrusion

filmEXT.jpg

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.


more (+)

» Blending & Dosing

Is dosing good enough? Do I need a Blender? Let Maguire walk you through the basics, process integration and more.

 

» Plastics Conveying

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

» Plastics Drying

Novatec shares their knowledge of dryers and drying techniques.

All rights reserved. Copyright © Gardner Business Media, Inc. 2014 Cincinnati, Ohio 45244