Multilayer sheet

Abstract

Multilayer sheet (10) of the type comprising a first layer (11) and a second layer (12) superimposed and constrained to each other through adhesive material (17) interposed between them in small amounts, wherein both said layers (11, 12) are embossed; characterised in that: said first layer (11) comprises a first (13) embossing matrix so as to make a plurality of first projections having a preset depth (d), and a second embossing matrix (15) so as to make a plurality of second projections having a greater depth (D) of said preset depth (d) of said first (13) embossing matrix; said second layer (12) comprises a first (14) embossing matrix so as to make a plurality of first projections having a preset depth (d′), and a second (16) embossing matrix so as to make a plurality of second projections having a greater depth (D′) than said preset depth (d′) of said first (14) embossing matrix; said adhesive material (17) being arranged at the contact points between said second (15) embossing matrix of said first layer (11) and said second layer (12).

Dependencies are inferred from the claim text.