JPS6482990A - Planographic printing method - Google Patents
Planographic printing methodInfo
- Publication number
- JPS6482990A JPS6482990A JP24042287A JP24042287A JPS6482990A JP S6482990 A JPS6482990 A JP S6482990A JP 24042287 A JP24042287 A JP 24042287A JP 24042287 A JP24042287 A JP 24042287A JP S6482990 A JPS6482990 A JP S6482990A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- fine powder
- dampening liquid
- particle diameter
- silver
- 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)
Abstract
PURPOSE:To contrive the solution of troubles such as scumming, defective build-up of an ink and defective adhesion of transferred silver, by a method wherein a photosensitive planographic plate comprising a fine powder with a specified average particle diameter in at least one layer is made by a silver complex salt diffusion transfer process, and then printing is conducted by using a dampening liquid comprising a polymer of a specified formula. CONSTITUTION:A photosensitive planographic plate comprises a fine powder with an average particle diameter of 2-10mum in at least one of a silver halide emulsion layer, an undercoat layer and the like. The fine powder may be, for example, a fine powder of titanium oxide, zinc oxide, barium sulfate, silica, talc, Ziegelite or a starch, among which particularly preferred is slica. The amount of the fine powder is about 5-50pts.wt. based on a binder. A dampening liquid comprises a polymer of formula I, the average molecular weight of the polymer is at least 600, and Z comprises propylene oxide constituting at least 50wt.% of the polymer. The reference amount of the polymer being used is about 0.1-50g per liter of the dampening liquid.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24042287A JPS6482990A (en) | 1987-09-24 | 1987-09-24 | Planographic printing method |
DE8888112235T DE3865400D1 (en) | 1987-08-03 | 1988-07-28 | DAMPING WATER SOLUTION FOR FLAT PRINTING PLATES AND APPLICATION. |
EP19880112235 EP0304662B1 (en) | 1987-08-03 | 1988-07-28 | Damping solution for lithographic printing plate and method using it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24042287A JPS6482990A (en) | 1987-09-24 | 1987-09-24 | Planographic printing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482990A true JPS6482990A (en) | 1989-03-28 |
Family
ID=17059241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24042287A Pending JPS6482990A (en) | 1987-08-03 | 1987-09-24 | Planographic printing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482990A (en) |
-
1987
- 1987-09-24 JP JP24042287A patent/JPS6482990A/en active Pending
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