Lithographic printing members having primer layers and...

Details Lithographic printing members having primer layers and... Lithographic printing members having primer layers and...

B - Operations, Transporting

41

C

B41C 1/10 (2006.01) B41N 1/00 (2006.01) B41N 1/14 (2006.01)

Patent

CA 2564874

A primer layer (104) that includes a surface-tension modifier dispersed within a polymer binder is disposed between the imaging layer (106) and the substrate (102) of a lithographic printing member (100) to inhibit the production of thermal degradation products that disrupt the oleophilicity of the exposed imaged areas, thereby improving print-making performance and efficiency. In addition, embodiments of the primer layer inhibit static charge buildup during production and during the print-making process.

Selon l'invention, une couche primaire (104) qui comprend un agent de modification de la tension superficielle dispersé à l'intérieur d'un liant polymère est disposée entre la couche d'imagerie (106) et le substrat (102) d'un élément d'impression lithographique (100) afin d'inhiber la production de produits de dégradation thermiques qui altèrent les propriétés oléophiles des zones d'image exposées, ce qui permet d'améliorer la performance et l'efficacité d'impression. En outre, dans certains modes de réalisation, la couche primaire inhibe l'accumulation de charge statique pendant la production et pendant le procédé d'impression.

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