Invention Grant
- Patent Title: Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution
- Patent Title (中): 用胶溶液开发热敏平版印刷版原版的方法
-
Application No.: US10379362Application Date: 2003-03-04
-
Publication No.: US07316891B2Publication Date: 2008-01-08
- Inventor: Joseph Vander Aa , Joan Vermeersch , Dirk Kokkelenberg , Huub Van Aert
- Applicant: Joseph Vander Aa , Joan Vermeersch , Dirk Kokkelenberg , Huub Van Aert
- Applicant Address: BE Mortsel
- Assignee: Agfa Graphics NV
- Current Assignee: Agfa Graphics NV
- Current Assignee Address: BE Mortsel
- Agency: Keating & Bennett, LLP
- Priority: EP02100226 20020306
- Main IPC: G03F7/00
- IPC: G03F7/00 ; G03F7/004

Abstract:
A method of making a lithographic printing plate is disclosed which comprises the steps of providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which comprises hydrophobic thermoplastic polymer particles; exposing the coating to heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating; developing the precursor by applying a gum solution to the coating, thereby removing non-exposed areas of the coating from the support. According to the above method, the plate precursor can be developed and gummed in a single step.
Public/Granted literature
- US20030170570A1 Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution Public/Granted day:2003-09-11
Information query