公开(公告)号：WO2022132444A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/061520

申请日：2021-12-02

Applicant: EASTMAN KODAK COMPANY

Inventor： OBENAUF, Johannes ,  BALBINOT, Domenico

IPC: B41N3/03 ,  B41C1/10 ,  G03F7/09

Abstract: Lithographic printing plate precursors have an aluminum-containing substrate prepared using two anodizing processes to provide an inner aluminum oxide layer of average dry thickness of 300-3,000 nm and a multiplicity of inner micropores of average inner micropore diameter of ≤100 nm. An outer aluminum oxide layer is provided with a multiplicity of outer micropores of average outer micropore diameter of 15-30 nm and a dry thickness of 30-650 nm. A hydrophilic layer is disposed on the outer aluminum oxide layer at 0.0002-0.1 g/m2 and has a (1) compound having an ethylenically unsaturated polymerizable groups; a -OM group connected directly to a phosphorus atom, wherein M represents a hydrogen, sodium, potassium, or aluminum atom; and (2) one or more hydrophilic polymers having (a) recurring units comprising an amide group, and (b) recurring units having an -OM' group that is directly connected to a phosphorus atom, wherein M' represents a hydrogen, sodium, potassium, or aluminum atom.