Retortable packaging, where products are cooked inside their package during the
manufacturing process, are a huge industry in Europe and the trend is coming to
North America. Typical products include pet food, spices, and MRE's, and new applications
are on the way.
We offer the following specialized films which are suitable to withstand the
requirements of the retort chambers, and comprise the majority of the packaging
Cast polypropylene (CPP) - standard and easy-tear films which act as the sealant
layer of the laminated structure; also in a
peelable lidding film
Polyester (PET) - higher heated resistance
We are pleased to introduce a new line of retortable cast polypropylene films
for retortable applications. These films have superior bond strength, seal strength
and overall performance versus other CPP films available on the market. Converters
can choose between our standard retort films and a directional easy tear film
which provideds foe a more consumer friendly package. All of these films retain
excellent seal integrity before and after the retort process-our key to success.
The "easy tear" film version provides the converter and the end user with a product
that tears straight at low propagation forces. This allows the package to be opened
easily without the manufacturer having to do laser scoring, a costly step which
can now be eliminated.
Thicknesses can be customized to your needs, but generally range as follows:
Sealant layer films 50 micron (2 mil) to 150 micron (6 mil)
Lidding films 70 micron (2.8 mil)
Polyester is typically used in the outside layer. Our polyester films are available
with normal heat resistance and also enhanced resistance and other properties.
Typically, we supply this film in 48 gauge (12 micron) or 92 gauge (23 micron)
Nylon is used to provide strength and barrier properties. Our biaxially oriented
nylon films )BOPA) are available in both blown and tenter-framed versions. While
the blown version provides more balanced properties in TD and MD, out tenter-framed
version is generally preferred by those who laminate because of its superior layflat
BOPA is available in thicknesses of 48 gauge (12 micron), 60 gauge (15 micron) and
100 gauge (25 micron).
We also offer the option of two-sided corona treatment, if necessary.