JPS57138640A - Production of base material for printing plate - Google Patents
Production of base material for printing plateInfo
- Publication number
- JPS57138640A JPS57138640A JP2447481A JP2447481A JPS57138640A JP S57138640 A JPS57138640 A JP S57138640A JP 2447481 A JP2447481 A JP 2447481A JP 2447481 A JP2447481 A JP 2447481A JP S57138640 A JPS57138640 A JP S57138640A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- iron
- cro3
- contg
- photosensitive layer
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/03—Chemical or electrical pretreatment
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
PURPOSE:To obtain a base material for printing plates which has a specific chromium coating on the surface of iron and is superior in rust preventiveness and adhesive strength to a photosensitive layer by subjecting an iron material as cathode to an electrolytic treatment at 25 deg.C in liquid contg. chromic acid anhydride (CrO3), Ba ions and NO3 ions. CONSTITUTION:The surface of an iron material is defatted and is removed of stains by subjecting the same to an anodic treatment by using electrolyte or the like contg. 80-200g/l CrO3 and <=0.01g/l nitric acid, after which with the iron material 9 as - electrode and a lead plate 10 as + electrode, it is treated under specific electrolytic conditions at <=25 deg.C in electrolyte 8 contg. 200-500g/l CrO3, 0.01-1g/l H3BO3, 0.1-0.5mol/l NHO3, 0.01-1g/l fluoride such as HF, <=0.1mol NH4 ion, 0.01-0.1g/l iron oxide (FeO), 1-10g/l Ba(NO3)2, whereby a base material for printing plates having the coating layer consisting of caracks 1, holes 2, chromium oxide 3, metallic Cr 4 on the surface of the iron material 9 is made. A photosensitive layer is formed on the coating layer thereof, and is exposed and developed, whereby the printing plate of excellent adhesive strength between the photosensitive layer and the base material and good print resistance is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2447481A JPS57138640A (en) | 1981-02-21 | 1981-02-21 | Production of base material for printing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2447481A JPS57138640A (en) | 1981-02-21 | 1981-02-21 | Production of base material for printing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57138640A true JPS57138640A (en) | 1982-08-27 |
Family
ID=12139156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2447481A Pending JPS57138640A (en) | 1981-02-21 | 1981-02-21 | Production of base material for printing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57138640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57142331U (en) * | 1981-02-27 | 1982-09-07 | ||
| CN107399179A (en) * | 2017-07-19 | 2017-11-28 | 山西运城制版集团（上海）企业发展有限公司 | A kind of gravure printing roller copper chloride pre-etching technique |
-
1981
- 1981-02-21 JP JP2447481A patent/JPS57138640A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57142331U (en) * | 1981-02-27 | 1982-09-07 | ||
| CN107399179A (en) * | 2017-07-19 | 2017-11-28 | 山西运城制版集团（上海）企业发展有限公司 | A kind of gravure printing roller copper chloride pre-etching technique |
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