发明授权
- 专利标题: Printing plate material with electrocoated layer
- 专利标题(中): 带电镀层的印版材料
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申请号: US09644010申请日: 2000-08-22
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公开(公告)号: US06374737B1公开(公告)日: 2002-04-23
- 发明人: David S. Bennett , Sallie L. Blake , Robert E. Bombalski , Kenneth A. Bowman , Joseph D. Guthrie , Thomas L. Levendusky , Daniel L. Serafin , Jean Ann Skiles
- 申请人: David S. Bennett , Sallie L. Blake , Robert E. Bombalski , Kenneth A. Bowman , Joseph D. Guthrie , Thomas L. Levendusky , Daniel L. Serafin , Jean Ann Skiles
- 主分类号: B41C110
- IPC分类号: B41C110
摘要:
A process for making printing plate material suitable for imaging by laser radiation. A metal substrate is electrocoated in a bath containing a polymeric resin and laser-sensitive particles, thereby depositing a laser ablatable layer on a principal surface of the metal substrate. In one embodiment, the laser-ablatable layer is treated with a corona discharge for a time sufficient to render the layer non-ink wettable. In other preferred embodiments, the laser-ablatable layer is overcoated with an overlayer such as a non-ink wettable silicone layer or a water-wettable layer comprising an organophosphorus polymer, preferably a copolymer of acrylic acid and vinylphosphonic acid.