PROJECT PROFILE ON MANUFACTURING OF PET PREFORMS
MANUFACTURING OF PET PREFORMS.pdf (Size: 101.66 KB / Downloads: 94)
The basic technical and financial parameters of a project on the manufacture PET
preforms by injection moulding PET bottle grade resin are described in this profile. This is
the first stage in the two stage PET bottle manufacturing process suitable for large scale
production and here the pet preform is molded on an injection moulding machine, then in
the second stage the preform is reheated and blown on a blow moulding machine. The
advantages of PET bottles include exceptional clarity, pure, safe, good barrier to oxygen,
carbon dioxide and water, lightweight and therefore less shipping costs, no leakage, design
flexibility, recyclable, long shelf life, good chemical resistance etc.
The consumption of PET bottles is increasing on account of new customers being created
for bottled beverages as well as an increasing number of products being replaced with PET
bottles. The per capita consumption of PET is very low in India at 0.3 kg vis-à-vis the global
average of 2 kg. This shows that there is a significant growth opportunity for PET bottles in
India. In 2010, the PET resin demand was 5 lakh tpa and the demand has been growing at
7.5% per annum. In the bottled water industry itself there is a great demand for PET bottles.
PET preforms can be used for Packaging of Mineral Water, Juices, Liquor, Soda, Sparkling
Drinks, Edible Oil, Pharma Products, Pickles, Squashes, FMCG Products etc.
PET granules received from suppliers are dried in a dehumidifier. The PET granules
are then mixed with colorants. Then the material is fed into the injection moulding hopper.
The material is plasticized and is injection moulded in a mould which can produce 12-72
preforms in a single moulding. The moulded preforms are cooled in the machine itself till it
can maintain its shape and is taken out and cooled at room temperature. The preforms are
then packed in cartons for despatch.
The project is found to be techno-economic viable. The project can be integrated vertically by
adding a line of the bottles / jars production from the preforms. The demand of packaged
and ready to drink /eat items is increasing tremendously with changing lifestyle, there is
huge potential for PET bottles/ jars and hence for PET preforms. The project is highly
recommended for implementation.