Film Extrusion
Colines Expands Reach in Stretch Film
Italian supplier of stretch film lines buys NO.EL Industrial Automation, which focuses on specialty systems for winding and stretching extruded film.
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Young Stretch-Film Processor Bets on Nanolayers
Going up against companies with as much as double its capacity, young stretch-film processor Zummit believes that new technology — notably 59-nanolayer films — will give it a competitive edge.
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Variable-Diameter Air Ring Cools Film Above Frost Line
Tower-mounted adjustable ring adds cooling so that blown film can run at optimum line speeds with structures having soft inner skin layers that tend to block.
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Crosslinking Process Promises Thinner, Higher-Performance PE Films
Technology combines UV curing system with photo initiator promoter masterbatch.
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Air Ring Add-On Brings Output to New Level
The Short Stack from Addex sits between the air ring and die and provides high-velocity air flow to boost output and lock in the bubble.
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Dual-Lip Air Ring Simplifies Auto-Profiling
New unit from D.R. Joseph reportedly easier to install, operate, modify and maintain than other auto-gauge control air rings on the market.
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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.
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Pregis Performance Flexibles: In the ‘Wow’ Business
Pregis went big and bold with investment in a brand-new, state-of-the-art plant and spent big on expanding an existing facility. High-tech lines, well-known leadership and a commitment to sustainability are bringing the “wow” factor to blown film.
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How Screw Design Can Mitigate Gels in PE Films
Gels are a constant issue in production of PE films using single-screw extruders. Gels can create quality issues via optical flaws, and they can cause the film to break on blown or cast film lines. There are numerous origins for gels, and the mitigation method depends on knowing the gel type.
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High-Output Air Ring for Heavy-Duty Bags
Air ring exceeds output rates of 1320 lb/hr and targets bags for form-fill-seal applications.
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