Shrink film testing to determine shrink percentage and shrink force.
Intertek labs test client shrink film samples to e.g. determine the shrink-percentage and shrink-force properties.
Shrink percentage and shrink force testing:
Shrink-film is used as an over-wrap on many types of packaging. When heat is applied to the film it will shrink tightly over the object it is covering. The shrinkage of the films is based on the relaxation of the orientation stresses introduced in the film during the production of the film. The relaxation causes a good enclosure of the package.
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