Composite sheet for producing packaging tubes comprises layer of sealable material and coextruded second layer which has zones carrying printing with zones made from different material on either side

摘要

The composite sheet for producing packaging tubes comprises a layer (12a) of sealable material and a coextruded second layer (14a). This has zones (18a) which carry printing (24a) and have zones (20a) made from a different material on either side. Independent claims are included for: (A) Tubes made from the composite sheet; and (B) a method for making semi-finished tubes from the sheet.