JPS55134865A - Original printing plate - Google Patents
Original printing plateInfo
- Publication number
- JPS55134865A JPS55134865A JP4325079A JP4325079A JPS55134865A JP S55134865 A JPS55134865 A JP S55134865A JP 4325079 A JP4325079 A JP 4325079A JP 4325079 A JP4325079 A JP 4325079A JP S55134865 A JPS55134865 A JP S55134865A
- Authority
- JP
- Japan
- Prior art keywords
- image
- silicone resin
- layer
- printing plate
- high voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
PURPOSE: To prepare an original lithographic printing plate not requiring wetting water, by applying high voltage imagewise selectively to the surface of a layer containing a silicon resin.
CONSTITUTION: On a layer containing a silicone resin (e.g., a hardenable silicone resin, a solvent soluble silicone resin, or the like) an imagewise selective cover is formed, then 2W6kV high voltage is applied, and the ink affinity of the noncovered part is enhanced to obtain an original printing plate. For example, toner image 2 is formed on photosensitive drum 1 by the usual electrophotographic process, silicone resin layer 3 with its surface charged to a polarity reverse to that of image 2 with corona charger 4 is passed between drum 1 and transfer drum 5 to transfer image 2 on layer 3, and a fixed image 6 is formed by heat fixing the transfer image with roller 7. Fixed image 6 is removed by applying high voltage to layer 3 with roller electrode 8 placed on conductive support and treating image 6 with a solvent.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4325079A JPS55134865A (en) | 1979-04-09 | 1979-04-09 | Original printing plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4325079A JPS55134865A (en) | 1979-04-09 | 1979-04-09 | Original printing plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134865A true JPS55134865A (en) | 1980-10-21 |
Family
ID=12658623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4325079A Pending JPS55134865A (en) | 1979-04-09 | 1979-04-09 | Original printing plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134865A (en) |
-
1979
- 1979-04-09 JP JP4325079A patent/JPS55134865A/en active Pending
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