Masterbatch -- Antiblock
Antiblock Materbatches are added to films and bags to keep the sheets from sticking together. They are used to lessen the adhesion of the surface of products made from the formulation of like or different surfaces. These Masterbatches act by producing a slight roughening of the surface-thus allowing easy opening of bags.
Many types of antiblock are available, ranging from synthetic silica formulations to give high clarity to natural silica to offer high performance where cost is important and clarity can be compromised to calcium carbonate where simple antiblocking without clarity is required.
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