Method for treating a lithographic printing plate
AssigneeAgfa Graphics NV
InventorsPeter Maessen, Hubertus Van Aert
Life of this patent
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Abstract
A method for treating a lithographic printing plate including the step of applying a liquid containing a surfactant to the plate, characterized in that the surfactant includes at least one hydrophilic segment including polyglycerol, and at least one hydrophobic segment selected from an optionally substituted alkylene group, an alkyl or aryl substituted poly(meth)acrylate, an optionally substituted polyester, polyether, polyurethane, polycarbosilane, polysiloxane, polystyrene and/or a polymer including a perfluoroalkyl group with the proviso that the liquid is not applied as a fountain solution.
Claims11
1-10. (canceled)
A method for treating a lithographic printing plate comprising the step of:
- applying a liquid containing a surfactant to the printing plate, and the step of applying the liquid to the printing plate does not include applying the liquid as a fountain solution;
- wherein
- the surfactant includes at least one hydrophilic segment including polyglycerol, and at least one hydrophobic segment selected from an optionally substituted alkylene group, an alkyl or aryl substituted poly(meth)acrylate, an optionally substituted polyester, polyether, polyurethane, polycarbosilane, polysiloxane, polystyrene and/or a polymer including a perfluoroalkyl group.
A method comprising the step of:
- using a liquid including a surfactant including at least one hydrophilic segment comprising polyglycerol to clean a lithographic printing plate.
A method comprising the step of:
- using a liquid including a surfactant including at least one hydrophilic segment comprising polyglycerol to gum a lithographic printing plate.
Dependencies are inferred from the claim text.