发明名称 |
Thermal imaging composition and member containing sulfonated IR dye and methods of imaging and printing |
摘要 |
An imaging member, such as a negative-working printing plate or on-press cylinder, can be prepared with a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic polymer having ionic moieties and an infrared radiation sensitive dye having multiple sulfo groups. The heat-sensitive polymer and IR dye can be formulated in water or water-miscible solvents to provide highly thermal sensitive imaging compositions. In the imaging member, the polymer reacts to provide increased hydrophobicity 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. The heat-sensitive polymer is considered "switchable" in response to heat, and provides a lithographic image without wet processing.
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申请公布号 |
US6537730(B1) |
申请公布日期 |
2003.03.25 |
申请号 |
US20000652344 |
申请日期 |
2000.08.31 |
申请人 |
KODAK POLYCHROME GRAPHICS LLC |
发明人 |
FLEMING JAMES C.;LEON JEFFREY W.;STEGMAN DAVID A.;WILLIAMS KEVIN W. |
分类号 |
G03F7/004;B41C1/10;B41M5/36;B41M5/40;B41M5/46;B41N1/14;C08K5/00;C08L101/14;C09B23/00;C09K3/00;G03F7/00;G03F7/032;(IPC1-7):G03F7/038;G03F7/20;G03C1/77;B41N1/08;B41N1/20 |
主分类号 |
G03F7/004 |
代理机构 |
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