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ENVIRONMENTAL REPORT
5.5 Products related aspects
Thin film, low density and multilayer technologies provide opportunities for packaging weight reduction.
With a
density of 0.91 g/cm³
, polypropylene is among the
lightest polymers available in the market.
This
advantage, in combination with the low thickness achieved through biaxial orientation technology, has been
the key to success of BOPP films in recent years. However, there is still room for improvement. If we look at
packaging films, further benefits can be achieved in three directions where Taghleef Industries has always
been involved:
»
Thickness reduction;
»
Density reduction;
»
Improved performance
(i.e. barrier films, improved seal integrity films).
T
hickness
reduction
Typical thickness
for BOPP films is in the range of
30µm.
Thinner films,
up to
15µm,
are available for
most specifications (transparent and metallised in particular) and offer plenty of opportunities for packaging
weight reduction without compromising on performance.
In cooperation
with
several top brands,
Taghleef
Industries Kft. has demonstrated that r
educing the thickness
of the package without compromising performance
(appearance, runnability, shelf life) is indeed possible.
P
ictures
13: A
verage
thickness
trend of
LIM
film
from
2006
to
2012
2006 2007 2008
2009
2010
2011
2012
65
63
61
59
57
55
lim average thickness
thickness
(µm)
The graph below, outlining the aver-
age thickness of a white voided film
(LIM) typically used in
in mould
label-
ling, confirms that the average thick-
ness has been reduced in 10 years is
close to 10%,
moving from 65 µm to
59 µm.