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US 6,670,084 B2Granted
Imaged printing plate and method of preparation
AssigneeKodak Polychrome Graphics LLC
InventorsPatrick R. Friedman, Dominique LaPorte, Patrice Aurenty
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AssigneeKodak Polychrome Graphics LLC
InventorsPatrick R. Friedman, Dominique LaPorte, Patrice Aurenty
Estimating the term…
A printing plate useful in lithographic printing is prepared by a process comprising: (a) applying a coating composition comprising at least one polymer such as polyethylene glycol to a substrate surface to provide the surface with a water-soluble or water-dispersible polymer coating; (b) imaging the coated substrate with a toner composition comprising toner particles by imagewise applying the toner composition to the polymer coating, wherein the polymer coating has a softening temperature TS; (c) heating the imaged substrate to a temperature TF which is equal to or greater than TS; and (d) contacting the imaged substrate with a solution capable of removing the non-imaged portion of the polymer coating, wherein the process does not comprise a chemical development step and the polymer coating has a coating weight of about 0.25 to about 2.0 g/m2.
A printing plate prepared by a process comprising:
A method of preparing a printing plate comprising:
A method of printing comprising:
A printing plate comprising image areas of toner fused at a fusing temperature TF overlying a water-soluble or dispersible polymer coating, wherein the polymer coating has a coating weight of about 0.25-2.0 g/m2 and a softening temperature TS which is equal to or less than the fusing temperature TF.
Dependencies are inferred from the claim text.