The packaging material is tetrahedron (pyramid)
shaped plastic-coated paper carton. The
innovation was introduced by a company called “Tetra Pak” owned by Ruben
Rausing and Erik Wallenberg. It was in
1970’s in Sweden and Switzerland.
the reasons for choosing it
1. It does an efficient packing regarding
volume space utilization. Its space utilization factor is 75%.
2. It is economical. Glass bottles are
expensive, need effort for recycling them, storage and sterilization.
3. It is an environmental friendly packing
material. biodegradable thick paper. Plastic or polythene is
polluting and non biodegradable.
4. It is hygienic.
5. Strong material, so we can pack a lot of them
over each pack. Polythene sheets are not strong for packing a number of
them over one another.
6. Storage for a long duration. Milk in
Polythene loses /gains heat quicker. Thick cardboard paper sheets are
Long ago, milk was supplied in cans
personally at homes by Dudhwalas - milk vendors. Then milk was supplied
in bottles from the distillation centers. That was to keep the milk
hygienic. It was convenient and healthy to supply that way. The
bottles were re-used.
The milk bottles were heavy. Newly introduced plastic
was very light, strong enough to hold milk, and cheap too. As plastic was
available abundantly and cheaply, it was used by the manufacturers. There
was no danger of milk bottles getting broken.
Then the environment is getting polluted due to the
non-bio-degradable plastic and polythene packing. So the manufacturers shifted
to thick paper pulp packing. The tetra packs are introduced to save
packing space. Their space utilization is 75% or more. They are
more efficiently transported that way. The packing is strong. They
milk can stay fresh and unspoilt for a long time. The tetra packing
materials are bio-degradable. They are easy to handle and can withstand
weight on them.
The tetra pack is a tetrahedron shaped and plastic coated paper pulp
material. It is invented by a multinational company for packing beverages
and foods. It uses minimum amount of material for maximum volume capacity
for sufficient strength. The material is also very cheap.
The inventors of tetra pack have received awards for best invention in food and
packaging industries and for the best application of mathematical principles.