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High-shrink polyolefin films
Eclipse Film Technologies' three-layer polyolefin shrink films—typically targeted for bottle applications—are composed of linear low-density polyethylene (LLDPE) and TOPAS® cyclic olefin copolymer (COC) from TOPAS Advanced Polymers, Florence, Ky. They boast lower density than competing film materials like PETG, PS, and PVC along with high machine direction shrink of 40% to 60% at 100°C and 0% to 2% growth in the cross/transverse direction at 100°C. Another major advantage is enhanced recyclability because the lower density films are easily separated from PET bottles via standard water flotation recycling systems.
Eclipse’s new high-shrink films deliver a 30% to 40% yield improvement over competing films. They also offer excellent clarity, good stiffness, and excellent web handling, according to Breese. Eclipse’s research identified TOPAS COC resin as a powerful enabling technology that enhances shrink and gloss while improving the sustainability of the total packaging system.
The new films also provide good ink adhesion and print registration for a wide range of shrink labels for various bottle uses. They are commercially available in various gauges up to 63 inches wide.
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