B - Operations – Transporting – 41 – N
Patent
B - Operations, Transporting
41
N
B41N 1/00 (2006.01) B41C 1/10 (2006.01) B41F 7/18 (2006.01) B41F 7/20 (2006.01) B41N 1/08 (2006.01) G03G 5/00 (2006.01)
Patent
CA 2552530
Plates coated with compositions photothermally sensitive to multiple portions of the electromagnetic spectrum and useful for the preparation of lithographic printing plates, color proofing films and the like by computer to Alate imaging processes comprising a solvent, cross-linkable polymers and monomers, and energy absorbing dye/laser dye/initiator/sensitizers, where the energy absorbing dye/laser dye/initiator/sensitizers are selected from dye/initiator/sensitizers having increased sensitivities to varying portions of the electromagnetic spectrum and where the sensitivity of the imaged Alate is increased by Are-heating prior to development.
L'invention concerne des plaques revêtues de compositions présentant une sensibilité photothermique à diverses parties du spectre électromagnétique et trouvant une utilité pour la préparation de plaques d'impression lithographique, de films d'essai-couleur et analogues au moyen de procédés de gravure directe de plaques flexographiques. Ces compositions comprennent un solvant, des polymères et des monomères réticulables, ainsi que des colorants absorbeurs d'énergie/colorants à laser/amorceurs/sensibilisateurs, lesquels sont choisis parmi des colorants/amorceurs/sensibilisateurs présentant des sensibilités accrues à diverses parties du spectre électromagnétique, la sensibilité de la plaque sur laquelle l'image est formée étant améliorée par préchauffage avant le développement.
Citiplate Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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