What's New
- Published: August 01, 2006
Nine-Layer Die has Stability
Battenfeld Gloucester Engineering Co., Gloucester, MA; 978/281-1800; www.bge.battenfeld.com
The nine-layer Optiflow LP (low profile) die keeps the polymer residence time as short as possible, which combines layers without interfacial instabilities occurring. Company says improved spiral design and seal technology ensure no layer-to-layer contamination, and modified spiral lengths add greater processing flexibility.
PFFC-ASAP 454
Blown Film Line has Power
Davis-Standard, Pawcatuck, CT; 860/599-1010; www.davis-standard.com
Seven-layer blown film system is equipped with advanced extruder, die, air ring, winder, and control technology. Includes seven “Super-Cooled” MAC extruders with an air volume system more powerful than previous models. Connecting the extruders is a 14-in., seven-layer Lo Pro coextrusion die with efficient flow channels, heating, and IBC features.
PFFC-ASAP 450
Die Reduces Melt Volumes
Windmoeller & Hoelscher, Lincoln, RI; 800/854-8702; www.whcorp.com
The Maxicone nine-layer die was designed to minimize both melt volumes and melt residence times. Achieves this through an optimally matched design of the three function areas of a die: melt pre-distribution; uniform melt distribution across the circumference through spiral mandrel distributors; and confluence of the individual melt flows.
PFFC-ASAP 451
Microlayer Technology Offered
Extrusion Dies Industries, Chippewa Falls, WI; 715/726-1201; www.extrusiondies.com
Company offers a flat-die system using “layer multiple” technology developed by and licensed from Dow Chemical Co. System is said to produce films and coatings with an order-of-magnitude greater number of layers than conventional coextrusions, yielding microlayer structures that improve moisture and gas barrier, encapsulate gels and “un-melts,” and enable the economical use of high-cost materials.
PFFC-ASAP 452
Control Extrusion Dies
NDC Infrared Engineering, Irwindale, CA; 626/939-3809; www.ndcinfrared.com
Electronics package controls auto-profile capable extrusion dies. Provides full backward software compatibility with company's previous APC control cabinets, so profile control upgrades can be made to any legacy company system easily. Uses standard Opto-22 electronics with no special modifications.
PFFC-ASAP 455
Coex Die is Streamlined
Brampton Engineering, Brampton, ON, Canada; 905/793-3000; www.be-ca.com
The nine-layer SCD-3 makes it possible to coextrude seven to ten layers of blown film. Streamlined coextrusion die is a stackable, modular system that processes each layer of film at its own ideal temperature. Die passage on the face of the die plate is streamlined to ensure molten polymer does not hang up and/or degrade.
PFFC-ASAP 453
