Differential ply core for core wound paper products

摘要

A two-ply core for core wound paper products. The inner ply of the core has more resistance to compression than the outer ply. The outer ply may have more resistance to tension than the inner ply. The two-ply core is suitable for use with core-wound paper products and particularly those which have been diametrically compressed. The core may comprise two plies of differing basis weights, wherein the inner ply has a greater basis weight than the outer ply.