The packaging materials include paper and paper based products (coated or lined), glass, tin plate, aluminium foil, timber (wood), plastics and laminates.
Paper and paper based products
The paper and paper based products form an excellent packaging material for milk and milk products. They may be kraft paper, grease proof paper, vegetable parchment paper, glassine paper, Transparent plastic packaging paper wax coated paper, plastic coated paper, paper boards, solid fibre boards, liner boards, box boards etc. The papers are used in the form of boxes, bags, wrappers, cartons, cups etc. The advantage of using paper is that it is weightless, capability for printing on the surface, low cost and easy disposability. The disadvantages include low wet and tear strength.
Glass
The glass may be transparent or opaque. Glass is used in the form of bottles, tumblers, jars, jugs etc. The advantages cited for glass as a packaging material include its strength, rigidity, ability to have a barrier for water and gas and inertness to chemical substances. The disadvantage is its heavy weight, and fragility.
Plastics
The use of plastic packaging has made tremendous progress in recent years.. A variety of plastics can be used for heat molding, injection molding or blow molding containers such as bottles, boxes, cups, boxes and other rigid plastic containers are the advantages of low cost and easy to process.. The disadvantages of product compatibility, low barrier property deterioration, plastic, high temperature and low temperature brittleness.
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