Advantages And Disadvantages Of Polypropylene
Polypropylene (PP) has many unique physical characteristics which includes low specific gravity, rigidity, heat resistance and superior workability. In addition, since it is comparatively low in cost, it is used in a variety of applications, such as films, industrial components for automobiles, furniture, etc., and miscellaneous goods but its application now a days have become almost double with the introduction of FIBC containers and various packaging products for food industries. In the countries like India packaging of materials are facing great challenges for the people as it can save food grains to get spoil to export various materials. In the tropical subcontinents pests expose agriculture and food products to attack from storage until …show more content…
2. Literature Review
Several polymer types are currently used for foodstuff packaging. Plastics have emerged as the most preferred choice of packaging materials for various products- from food, beverages, chemicals, electronic items and so on. They offer unique advantages over conventional materials (Anonymous, 2011):
•Safety: Plastics are safer materials for packaging of food products specially polyolefins which do not react with food. Pilferage and contamination is difficult.
•Shelf Life: Plastics packaging material offer better shelf life
•Cost: Plastics are the most cost effective medium of packaging when compared with any other material; the cost of transportation is reduced considerable on account of lower weight and less damage
•Convenience: Plastics can be converted in any form with various processing techniques, thus can pack any type of substances like liquids, powders, flakes, granules, solids.
•Waste: Packaging in plastics reduces the wastage of various food products, typical example is potatoes or onions packed in
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Natta utilised catalysts developed for the polyethylene industry and applied the technology to propylene gas. Commercial production began in 1957 and polypropylene usage has displayed strong growth from this date.
2.4. Advantages of FIBC over normal bags
1) Low cost of material handling from the manufacturer to the end user inclusive of wastage of material.
The handling cost of jute bags (25 to 100 kgs) is Rs 75/metric ton whereas that of PP FIBC is only Rs 10/metric ton. The wastage factor due to spillage in case of jute bags is as high as 2.5% whereas that of PP FIBC is only 0.5%.
2) Easy filling and discharge
For 1 ton of product in jute bags, 20 to 40 times filling is to be done whereas in case of PP FIBC the filling is to be done only once.
3) Savings in loading/unloading time due to ease of handling
In case of jute bags the average time taken for loading/unloading is 10 minutes per ton of product whereas in case of PP FIBC is 3 minutes per ton of product.
4) Low weight packing for transport
In case of jute bags, about 5-7 kgs of packaging material is used per ton of packed material whereas in case of PP FIBC’s about 2.5 to 3 kg of packed material is used per ton of packed
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