B - Operations – Transporting – 41 – N
Patent
B - Operations, Transporting
41
N
B41N 1/14 (2006.01) B41C 1/10 (2006.01)
Patent
CA 2441802
A thermosensitive plate material for lithographic plate formation according to the present invention includes a substrate (1) and a thermosensitive layer (2) formed thereon. The thermosensitive layer (2) includes an organic polymer (4) containing lipophilic portion forming particles (3). In the thermosensitive layer (2), a surface portion (21) having a thickness of 0.1 µm or more does not contain the lipophilic portion forming particles (3) but contains a metal oxide (5). The surface portion (21) includes a hydrophilic organic polymer (41), which has been cured with the metal oxide (5). A portion (22) of the thermosensitive layer (2) on the substrate side contains the lipophilic portion forming particles (3). The organic polymer (42) constituting the base portion (22) need not be the hydrophilic organic polymer.
L'invention concerne un matériau en plaque thermosensible destiné à former une plaque lithographique constituée d'un substrat (1) et d'une couche thermosensible (2) formée sur ce substrat. La couche thermosensible (2) comprend un polymère organique (4) contenant des particules (3) qui forment une partie oléophilique. Dans la couche thermosensible (2), une partie de surface (21) ayant une épaisseur d'au moins 0,1 µm ne contient pas de particules (3), mais un oxyde de métal (5). La partie de surface (21) comprend un polymère organique hydrophile (41), qui a été polymérisé avec de l'oxyde de métal (5). Cette partie (22) de la couche thermosensible (2) faisant face au substrat contient des particules (3). Le polymère organique (42) qui constitue la partie de base (22) n'a pas besoin d'être hydrophile.
Hayashi Minoru
Ide Youichiroh
Sato Seiji
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Fuji Photo Film Co. Ltd.
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