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Challenges in Winding Flexible Packaging Film
www.tappi.orgRoll Hardness vs. Diameter 0 20 40 60 80 100 120 Diameter Hardness Taper Ideal Hardness Taper Maximum Hardness Taper Minimum Hardness Taper Core Full Roll. 4 Film Winding Principles Roll hardness is developed in different ways on different types of winders but the basic ... Elasticity’ chart, we can assume an average modulus of 1,400 kg/cm2 for