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Plastics stretch/shrink hoods for packing products
in larger quantity have gained immense popularity. Generally LLDPE
based on higher alpha olefins has been used for stretch hoods while
LDPE continues to be used for shrink films. These films are usually
manufactured from multi-extrusion systems.
Recent developments introduced have aided in improved performance.
Basell Polyolefins has developed a system based on their advanced
Polyolefins called Adflex grades. Exxon Mobil, another global player
in Polyolefins, has recently introduced a new co-extrusion system
based on a new range of PE resin called Nexxstar, essentially high
performance copolymers. The use of Nexxstar along with Exceed Metallocene
LLDPE was demonstrated on the stretch hoods on Lachenmeier A/S machinery.
The study revealed that they outshine vis-s-vis performance cost
as well as operating cost and also help in increasing packaging
speed. The hood structure offers outstanding toughness and excellent
optical properties. These hoods have capability of providing the
same holding force at lower thickness because of outstanding mechanical
strength. These structures also furnish excellent puncture resistance
and tear strength. These properties help in improving the packaging
integrity leading to less damage to the product. These new alternates
from ExxonMobil and Basell Polyolefins will benefit the film converting
industry.
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