Gum solution containing specific poly siloxane compound
AssigneeEastman Kodak Company
InventorsShoichi Hotate, Maru Aburano
Life of this patent
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Abstract
It is an object of the present invention to provide a plate surface protecting liquid composition which enables an improvement in adhesion of a printing ink onto a lithographic printing plate at the beginning of printing, and to provide a method for treating a lithographic printing plate using the plate surface protecting liquid composition, which can reduce the generation of waste paper immediately after the beginning of printing. Disclosed is a plate surface protecting liquid composition for lithographic printing plate, including a polysiloxane compound having a polyether chain in the side-chain.
Claims13
-9. (canceled)
A method for treating a lithographic printing plate, which comprises the steps of:
- imagewise exposing a lithographic printing plate precursor;
- developing the imagewise exposed lithographic printing plate precursor with an alkali developer;
- and
- treating the developed lithographic printing plate with a plate surface protecting liquid composition comprising a polysiloxane compound having a polyether chain in a side-chain.
Dependencies are inferred from the claim text.