Invention Grant
- Patent Title: Thermosensitive lithographic printing plate
- Patent Title (中): 热敏平版印刷版
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Application No.: US10610707Application Date: 2003-07-02
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Publication No.: US07108956B2Publication Date: 2006-09-19
- Inventor: Akio Oda
- Applicant: Akio Oda
- Applicant Address: JP Kanagawa
- Assignee: Fuji Photo Film Co., Ltd.
- Current Assignee: Fuji Photo Film Co., Ltd.
- Current Assignee Address: JP Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: JPP.2002-194657 20020703; JPP.2002-264490 20020910; JPP.2003-038525 20030217; JPP.2003-038526 20030217
- Main IPC: G03F7/09
- IPC: G03F7/09 ; G03F7/11

Abstract:
A thermosensitive lithographic printing plate comprising: a hydrophilic support; a lower layer comprising a water-insoluble and alkali-soluble resin; and an upper thermosensitive layer comprising a water-insoluble and alkali-soluble resin and an infrared absorbing dye, whose dissolution in an alkaline aqueous solution increases upon exposure, wherein a surface of the upper thermosensitive layer has protrusions caused by ununiformity of thickness of the upper thermosensitive layer in a proportion of 0.1 or more and not more than 7 per μm2 or the upper thermosensitive layer comprises at least two alkali-soluble resins having a different dissolution speed in an alkaline aqueous solution from each other, and the at least two alkali-soluble resin cause phase separation from each other.
Public/Granted literature
- US20040131966A1 Thermosensitive lithographic printing plate Public/Granted day:2004-07-08
Information query
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