发明名称 |
Processless direct write printing plate having heat sensitive positively-charged polymers and methods of imaging and printing |
摘要 |
<p>An imaging member, such as a negative-working printing plate, can be prepared using a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic polymer having a positively charged moiety, and optionally a photothermal conversion material. The heat-sensitive polymer has recurring units containing an N-alkylated aromatic heterocyclic group or an organoonium group that reacts to provide increased oleophilicity in areas exposed to energy that provides or generates heat. For example, heat can be supplied by laser irradiation in the IR region of the electromagnetic spectrum. Thus, the heat-sensitive polymer is considered "switchable" in response to heat, and provides an imaging means without wet processing.</p> |
申请公布号 |
EP0990517(A2) |
申请公布日期 |
2000.04.05 |
申请号 |
EP19990203039 |
申请日期 |
1999.09.17 |
申请人 |
KODAK POLYCHROME GRAPHICS LLC |
发明人 |
LEON, JEFFREY W.;UNDERWOOD, GARY MARSHALL;FLEMING, JAMES C.;DEBOER, CHARLES DAVID |
分类号 |
G03F7/027;B41C1/10;C08L33/06;C08L39/04;C08L101/02;G03F7/00;G03F7/029;(IPC1-7):B41C1/10 |
主分类号 |
G03F7/027 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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