发明授权
- 专利标题: Heat-sensitive lithographic printing plate and image forming method
- 专利标题(中): 热敏平版印刷版和成像方法
-
申请号: US10660761申请日: 2003-09-12
-
公开(公告)号: US07153627B2公开(公告)日: 2006-12-26
- 发明人: Yasuyuki Watanabe , Naohito Saito , Hisatomo Yonehara , Yasuyuki Suzuki
- 申请人: Yasuyuki Watanabe , Naohito Saito , Hisatomo Yonehara , Yasuyuki Suzuki
- 申请人地址: JP Tokyo
- 专利权人: Dainippon Ink and Chemicals, Inc.
- 当前专利权人: Dainippon Ink and Chemicals, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP
- 优先权: JP2002-270063 20020917
- 主分类号: G03F7/004
- IPC分类号: G03F7/004 ; G03F7/20 ; G03F7/26
摘要:
A negative-working CTP plate which is superior in resolution and printing resistance of the image area of a press plate is provided, which is obtained by forming a latent image on a heat-sensitive layer in a heat-sensitive lithographic printing plate comprising a substrate having a hydrophilic surface and a heat-sensitive layer made of an alkali-soluble polymer formed on the surface of the substrate, using heat generated upon irradiation with laser light, and developing the heat-sensitive layer using an alkaline developing solution. In the heat-sensitive lithographic printing plate comprising a substrate having a hydrophilic surface, and a heat-sensitive layer made of an alkali-soluble polymer formed on the surface of the substrate, an advancing contact angle (θf1) of the surface of the heat-sensitive layer with water at 25° C. is within a range from 70° to 110°, a receding contact angle (θb2) of the surface of the heat-sensitive layer with water at 25° C. after heating at 150° C. for 3 minutes is larger than a receding contact angle (θb1) of the surface of the heat-sensitive layer with water at 25° C. before heating, and a difference in receding contact angle before and after heating, (θb2−θb1), is larger than 1° and is smaller than 40°.
公开/授权文献
信息查询
IPC分类: