blown film

blown film

[¦blōn ′film]
(materials)
Film that has been produced by extruding a tube of plastic material which is then expanded in diameter and reduced in thickness by internal air pressure, and then slit along one side.
References in periodicals archive ?
Another Canadian machine builder active in blown film is teaming up with another firm to supply systems for nanolayer films.
The company's new TDi Blown Film system, known as model 8110-BE allows processors to "optimize machine output and performance as well as product quality, particularly when costly barrier materials are involved.
American Kuhne has focused on designing and supplying high-performance barrier screws and extruders since it was launched in January 1997, but will now be offering complete blown film systems designed and manufactured at the Kuhne Group in Germany.
Extrusion Dies Industries, LLC (EDI), Chippewa Falls, Wisconsin USA, has announced that it now provides rework services "to make a used blown film die as good as new.
Tailor-made for blown film lines, the SFXmagnus from Gneuss, Matthews, N.
For packaging delicate electronic products or preventing rust on metal parts, Techmer PM has introduced Techsperse PM11280E1P Vapor Corrosion Inhibitor (VCI), which contains a chemical compound that migrates out of a blown film and forms a protective layer on the packaged product.
W&H demonstrated the new products, among them a new line that uses water to cool blown film, at a November open house at its headquarters in Lengerich, Germany.
Designed for blown film extrusion, Inspire 112 is said to expand film capabilities for converters, delivering high output rates along with significantly improved bubble stability and drawdown capabilities compared with conventional polypropylene (PP).
Reifenhauser GmbH has acquired the blown film extrusion equipment business of Kiefel Extrusion GmbH from Bruckner Technology Holding GmbH.
Comparisons have often been made by professionals with extensive knowledge of blown film but limited knowledge of cast film processing equipment.
A five-layer cast and blown film line for lab or small-scale production was recently built by Macro Engineering & Technology Inc.
Resin loss that occurs in the blown film manufacturing process (as opposed to pellet loss during transportation or silo transfers) has two main sources: chronic minute thickness variations, either slow or fast, and uncontrolled film width.