Plastic Strapping - Packaging

Polypropylene Plastic Strapping

Polypropylene is the most accepted and widely used strapping material for packaging due to its properties of better heat sealing and pricing. Characteristics of polypropylene plastic strapping include high elongation and elongation recovery, but low retained tension.

Available in both manual grade and machine grade, polypropylene plastic strapping can be sealed with buckles, seals, heat seals or friction welds. Packaging with polypropylene plastic strapping is best for light duty palletizing, unitizing, carton closing and bundling for packaging. It is used in all semi-automatic plastic strapping machines and nearly all stand alone arched / chuted plastic strapping machines.

Commonly used terms about plastic strapping in packaging

Split Resistance - The ability of strapping to resist lateral tearing (splitting) in operation.

Break Strength - The amount of force required to break the strapping.

Elongation - The % of stretch in the strapping as force or tension is applied.

Camber - The side to side curvature of strapping. Machine grade strapping must be camber free to allow the strapping to move through the equipment.

Creep - The loss of the strapping tension that occurs over a period of time.

Elongation Recovery - The strap's ability to return to its original state after tensioning.

Knurling / Embossing - The textured pattern applied on the strapping surface during manufacturing. Good quality embossing on the strap ensures better joints, reduce the tendency to split and improve stiffness characteristics without losing significantly on break strength. Good embossing also ensures minimal slippage on the strapping machine between grip wheels while tensioning.

Joint Efficiency - The usable strength of strapping is only as powerful as the joint holding the two strap ends together. Joint efficiency is expressed as a % of the total breaking strength of the strapping.

Polypropylene plastic strapping is the most widely employed strapping material for packaging for its low cost and easy application. 4C Consultants, India manufactures plastic strapping which meets the demanding specifications of automatic strapping machines.

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