Invention Grant
US08148048B2 Method of processing on-press developable lithographic printing plate having overcoat
有权
具有外涂层的可印刷显影平版印刷版的加工方法
- Patent Title: Method of processing on-press developable lithographic printing plate having overcoat
- Patent Title (中): 具有外涂层的可印刷显影平版印刷版的加工方法
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Application No.: US12030867Application Date: 2008-02-14
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Publication No.: US08148048B2Publication Date: 2012-04-03
- Inventor: Gary Ganghui Teng
- Applicant: Gary Ganghui Teng
- Main IPC: G03C1/00
- IPC: G03C1/00 ; G03F7/00

Abstract:
A method of processing an on-press developable lithographic printing plate involving the removal of the overcoat after laser imaging and before on-press development is described. The plate comprises a substrate, an on-press ink and/or fountain solution developable photosensitive layer, and an overcoat. The laser imaged plate is mechanically stripped off the overcoat, and then developed with ink and/or fountain solution on a lithographic press. Such a process allows the use of overcoat to achieve faster photospeed and improved durability of the plate without having various issues as related to overcoat such as contamination to the fountain solution, difficulty to remove of certain overcoat, and limited white light stability.
Public/Granted literature
- US20090208874A1 Method of processing on-press developable lithographic printing plate having overcoat Public/Granted day:2009-08-20
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