Multi-layered printing sleeve

摘要

A printing sleeve to be mounted onto a printing cylinder (13) provided with means (15) to enable pressurized air to flow onto an outer surface (12) thereof in order to enable the printing sleeve (10) to be mounted onto or removed from said surface, this sleeve being multi-layered and comprising an internally hollow core layer (20, 120, 220) provided with an inner cylindrical surface (21), said core layer (20, 120, 220) presenting an outer cylindrical surface (22) generally concentric with the inner surface (21), the core layer (20, 120, 220) being formed of a high rigidity expandable material, said core layer supporting a bridge layer (30, 130, 230) fixed to said core layer; the bridge layer (30, 130, 230) is of generally rigid, relatively expandable material in order to enable the sleeve (10) to expand and contract radially for the air-mounting and removal thereof onto and from the printing cylinder (13), said radially expandable sleeve being not provided with a compressible layer positioned on the outer cylindrical surface (22) of the core layer (20, 120, 220).