Dry lithographic imaging and printing with printing members having aluminum substrates

A method of dry printing comprising the steps of:

• providing a lithographic printing member consisting essentially of (i) an oleophobic topmost layer, (ii) disposed thereunder, a dried, crosslinked polymeric imaging layer consisting essentially of (a) a nitrocellulose composition, (b) a melamine binder and (c) dispersed therein, an infrared-absorbing dye or pigment, the melamine binder constituting at least 35% by weight of the polymeric imaging layer, and (iii) disposed under and in direct contact with the polymeric imaging layer, a metal sheet having a grained surface;
• exposing the printing member to infrared imaging radiation in an imagewise pattern to cause ablation of the imaging layer;
• cleaning the printing member by rubbing with plain tap water to reveal the grained metal surface;
• and
• printing with the printing member by repeatedly applying only ink to the printing member, whereby the ink adheres to the grained metal surface where revealed and not to the oleophobic layer, and transferring the ink to a recording medium.