Lithographic imaging with constructions having mixed...

B - Operations – Transporting – 41 – C

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B41C 1/10 (2006.01)

Patent

CA 2290595

The effects of interfacial transition between organic and inorganic layers of a lithographic printing member are ameliorated by incorporating an inorganic component within the matrix of the organic layer. In a first aspect, a lithographic printing plate having adjacent organic and inorganic layers is fabricated by depositing a curable polymer, softening the polymer, and integrating an inorganic material therewith. The polymer is then cured to immobilize the integrated deposition material, and the desired inorganic layer is applied over the deposited inorganic material (and any exposed portions of the polymer). In a second aspect, a graded structure is built up on a substrate in successive deposition steps. Both polymer precursors and an inorganic filler material are deposited in stages, with each stage containing a desired ratio of polymer to filler.

Les effets de la transition interfaciale entre des couches organique et inorganique d'un élément d'impression lithographique sont améliorés par incorporation d'un constituant organique dans la matrice de la couche organique. Dans un premier aspect, une plaque d'impression lithographique comportant des couches organique et inorganique adjacentes est fabriquée par dépôt d'un polymère durcissable, par ramollissement de ce polymère et par intégration d'un matériau inorganique dans ce polymère. Le polymère est ensuite durci pour immobiliser le matériau de dépôt intégré, et la couche inorganique souhaitée est appliquée sur le matériau inorganique déposé (et toute partie exposée du polymère). Dans un second aspect, une structure profilée est constituée sur un substrat par des étapes de dépôt successives. Des précurseurs de polymère et un matériau de charge inorganique sont tous les deux déposés en étages, chacun de ces étages contenant un rapport souhaité entre le polymère et la charge.

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