Flexible packaging seal layers
Their outstanding sealing properties are rapidly making Exact plastomers
the sealing polymer of choice for flexible food packaging.
Superior seal integrity
Exact plastomers provide a combination of low seal initiation temperatures
and a high hot tack and seal strength over a broad temperature window.
As illustrated, Exact outperforms conventional sealing polymers
including VLDPE's, EVA's and ionomers.
Equally important, the outstanding sealing behaviour of Exact plastomers
is affected much less by seal area contaminants than all current
premium sealing materials, including ionomers, for form-fill-seal
packaging machines. This includes powder as well as liquid contaminants.
Positioning
of Exact Hot tack comparison
of 25 micron
seal layer - PA structures
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Seal integrity
of Exact
Seal through contamination for 50 micron
seal layer - PET laminate
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Purity
All Exact plastomers are FDA compliant for direct food contact.
Very low levels of extractables mean reduced
die build up and smoke generation in processing.
Packaging aesthetics
Exact plastomers can also contribute to enhanced package appearance.
The low haze value of film produced with Exact plastomers can improve
product visibility and facilitate outstanding graphics. Exact plastomers
are also indirectly helping the penetration of luxury appearance
polypropylene film structures in providing the opportunity for lap
seals.
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