JPS55113595A - Base plate for water-eliminating lithographic printing block - Google Patents
Base plate for water-eliminating lithographic printing blockInfo
- Publication number
- JPS55113595A JPS55113595A JP1977979A JP1977979A JPS55113595A JP S55113595 A JPS55113595 A JP S55113595A JP 1977979 A JP1977979 A JP 1977979A JP 1977979 A JP1977979 A JP 1977979A JP S55113595 A JPS55113595 A JP S55113595A
- Authority
- JP
- Japan
- Prior art keywords
- block
- aluminum
- etched
- lithographic printing
- water
- 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 eliminate moisture water when printing with a lithographic printing block by largely improving the detecting capacity of the block by using an aluminum block treated by etching process.
CONSTITUTION: An aluminum block etched with alkaline solution or electrolytically etched is used as a water-eliminating lithographic printing block. The etching easiness depends upon the purity of aluminum in the block. Low purity aluminum is more readily etched than high purity alluminum. The stripes and metallic light on the surface of aluminum block are erased and whitened by a suitable etching process. When the block is excessively etched, the surface of the block is blackened to produce rough surface to reduce the detecting capacity thereof. When the block is less etched, the stripe of the block due to rolling direction is retained on the surface of the block less effectively.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977979A JPS55113595A (en) | 1979-02-23 | 1979-02-23 | Base plate for water-eliminating lithographic printing block |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1977979A JPS55113595A (en) | 1979-02-23 | 1979-02-23 | Base plate for water-eliminating lithographic printing block |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55113595A true JPS55113595A (en) | 1980-09-02 |
Family
ID=12008800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1977979A Pending JPS55113595A (en) | 1979-02-23 | 1979-02-23 | Base plate for water-eliminating lithographic printing block |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55113595A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023026776A1 (en) * | 2021-08-24 | 2023-03-02 | 東レ株式会社 | Waterless planographic printing original plate, method for producing waterless planographic printing plate, method for sorting waterless planographic printing plate, and method for producing printed material |
-
1979
- 1979-02-23 JP JP1977979A patent/JPS55113595A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023026776A1 (en) * | 2021-08-24 | 2023-03-02 | 東レ株式会社 | Waterless planographic printing original plate, method for producing waterless planographic printing plate, method for sorting waterless planographic printing plate, and method for producing printed material |
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