laminate, or in other words, a combination of layers
of plastic film, polymers, metal foil and
The layer are specifically chosen depending on the products
to be packed and then bonded
we have laminates that can be designed to package everything
from foodstuffs to surgical
and protect them from environmental and physical harm.
more cost efficient method of reproducing the protective
properties of tins, can and jars has thus
found. The secret however lies in the concept of tailormade
laminate. Like tailormade clothes,
products requires a laminate that's specially designed
to suit it.
the typical wrapper for a bar of chocolate. It has a
high quality polymer film surface for good
characteristics. The polymer also forms a barrier that
keep out moisture and odorous gases,
a chocolate tends
a absorb. Beneath, the polymer layer is reinforced by
a layer of metal foil such as aluminium foil
completes the barrier against moisture and oxygen which
attack the fat content of the chocolate.
the inner -most layer is a special grade of polyethylene
(PE) that is in direct contact with the
and has excellent sealing properties.
these layers are bonded together by a completely odourless
adhesive - once again because
tends to absorb odour. Thus each laminate is product
specific. And the laminate that's
to make a chocolate wrapper, would be quite unsuitable
for a bar of soap.
the business of flexible packaging has to go beyond
identifying product specific laminates : and
aspects like structural design of the pack, laminate-machine
compatibility and selection
the right adhesives, solvents, printing inks and resins.
A lackadaisical approach to these aspects
critically affect product shelf life and consequently
affect consumer safety.
successful Flexible Packaging Materials thus has to
go through several stringent tests before it