公开(公告)号：US06465152B1

公开(公告)日：2002-10-15

申请号：US09603013

申请日：2000-06-26

Applicant: Thap DoMinh ,  Shiying Zheng ,  Jennifer R. Kersten

Inventor： Thap DoMinh ,  Shiying Zheng ,  Jennifer R. Kersten

IPC: B41M536

CPC classification number: B41N3/038 ,  B41C1/1041 ,  Y10S430/145 ,  Y10S430/155

Abstract: An imaging member is composed of a hydrophilic imaging layer having a hydrophilic heat-sensitive polymer containing heat-activatable thiosulfate groups, and optionally a photothermal conversion material. Upon application of energy that generates heat, such as from IR irradiation, the polymer is crosslinked and rendered more hydrophobic. The imaging layer is disposed on an interlayer on a support, which interlayer comprises a Group IVB element (such as titanium, hafnium or zirconium) compound for improved mechanical and imaging properties. The exposed imaging member can be contacted with a lithographic printing ink and used for printing with or without post-imaging wet processing. This imaging member is particularly useful for direct write imaging using IR lasers or thermal printing heads.

Abstract translation: 成像构件由具有亲水性热敏性聚合物的亲水性成像层组成，该亲水性热敏性聚合物含有可热激活的硫代硫酸盐基团，以及任选的光热转化材料。 在施加产生热量的能量（例如从IR照射）时，聚合物交联并变得更疏水。 成像层设置在载体上的中间层上，该中间层包含IVB族元素（例如钛，铪或锆）化合物，用于改善机械和成像性能。 曝光的成像构件可以与平版印刷油墨接触并且用于具有或不具有后成像湿法处理的印刷。 该成像构件对于使用IR激光器或热敏打印头的直接写入成像特别有用。