Method of preparation of electrostatically imaged printing plates
AssigneeKodak Polychrome Graphics LLC
InventorsPatrick Friedman, Dominique LaPotre
Life of this patent
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Abstract
A method of preparing an imaged element useful in lithographic printing comprises: (a) electrostatically imaging at least one surface of a substrate with a toner composition; (b) heating the imaged substrate a first time using non-contact heating to a first substrate temperature Tp; and (c) heating the imaged substrate a second time to a substrate temperature TF, wherein the method does not comprise a development step between steps (b) and (c). This method is used to obtain an imaged element with adequate fuser toning while avoiding substrate buckling and distortion.
Claims29
A method of preparing an imaged element comprising:
- (a) electrostatically imaging at least one surface of a substrate with a toner composition,
- (b) heating the imaged substrate a first time using non-contact heating to a first substrate temperature Tp;
- and
- (c) thereafter heating the imaged substrate a second time to substrate temperature TF, wherein the method does not comprise a development step between steps (b) and (c).
An imaged element prepared by a process comprising:
- (a) electrostatically imaging at least one surface of a substrate with a toner composition;
- (b) heating the imaged substrate a first time using non-contact heating to a first substrate temperature Tp;
- and
- (c) thereafter heating the imaged substrate a second time to substrate temperature TF, wherein the process does not comprise a development step between steps (b) and (c).
A method of printing comprising:
- (a) providing a printing plate prepared by the process comprising:
- (i) electrostatically imaging at least one surface of a substrate with a toner composition,
- (ii) heating the imaged substrate a first time using non-contact heating to a first substrate temperature Tp, and
- (iii) heating the imaged substrate a second time to substrate temperature TF, wherein the process does not comprise a development step between steps (ii) and (iii), to provide an imaged printing plate;
- (b) contacting the imaged printing plate with an ink;
- and
- (c) transferring imagewise the ink from the printing plate to a receiving material.
Dependencies are inferred from the claim text.