Issue 02/2017

Thermoforming / Rigid Packaging
White, easy-to-peel
bio-PET lidding film
Toray Plastics (America), Inc., now offers a biobased
version of its new LumiLid ® XL7W, a white, easy-topeel
PET lidding film for use with refrigerated and frozen
dairy and dairy-replacement foods that are packaged
in polypropylene (PP) containers. Toray’s LumiLid portfolio
of PET lidding films includes biobased and traditional films
in clear, white, and metallized formats for dual-ovenable,
refrigerated, fresh, wet, and dry food applications.
When XL7W is sealed to a PP container, it forms a strong,
consistent bond, sealing even through overfill on the rim of
the tray. Other white lidding films have a thinner sealant
layer and lack the superior caulkability (i.e. the ability of
the sealant to flow around irregularities in the seal area)
performance of XL7W. With its thicker, high-performance
sealant, the new product can often replace multi-layer
laminations, which are expensive. The XL7W seal is strong
enough to protect product freshness and is also consumerfriendly,
providing a quick, easy, clean peel that resists
shredding and complements XL7W’s premium appearance
and feel.
In addition, the new lidding film satisfies the customer’s
desire for a robust narrow matrix rewind, which allows
more lids to be produced and reduces downtime and waste
during production. It is available in 128, 164, and 200 gauges
(32, 41 and 50 µm).
“The market demand for PP containers, and compatible
biobased lidding film is growing,” says Milan Moscaritolo,
Senior Director, New Business Development, Toray Plastics
(America). “Biobased XL7W offers the perfect solution
in many areas: environment-friendliness, functionality,
production efficiencies, waste reduction, seal performance
during distribution, and consumer satisfaction.”
Toray launched its first biobased lidding films in 2015
with the introduction of its biobased dual-ovenable
films. Toray’s biobased films are manufactured with its
proprietary sustainable resin blends. The thin, multilayer
films consist of a structural bio-PET layer and a specialty
sealant layer, which delivers specified performance and
seal-strength characteristics. This sealant is an extrusion
coated proprietary multilayer structure made with biobased
polyethylene. Biobased LumiLid products (consisting of
blends of biobased polyolefin as a sealant extrusion coated
to a biobased PET film) have a total bio-content of about
35 % to 50 %, depending on the application. Biobased
content is validated by a third party laboratory.
Biobased LumiLid films were created to lessen the
impact on the environment and to meet the needs of the
environment-conscious end user and consumer. Like all
LumiLid films, they are manufactured without solvents,
which ensures the films are odor-free. This may alleviate
end-users’ concerns about solvent retention, as well as
enhance the films’ sustainability profile.
LumiLid biobased films have the same superior
performance qualities that are characteristic of the LumiLid
brand. They have a low seal initiation (SIT), broad seal range,
outstanding seal integrity, and an easy peel.MT
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12 bioplastics MAGAZINE [02/17] Vol. 12