JPS6438291A - Production of aluminum support for printing plate - Google Patents
Production of aluminum support for printing plateInfo
- Publication number
- JPS6438291A JPS6438291A JP19452287A JP19452287A JPS6438291A JP S6438291 A JPS6438291 A JP S6438291A JP 19452287 A JP19452287 A JP 19452287A JP 19452287 A JP19452287 A JP 19452287A JP S6438291 A JPS6438291 A JP S6438291A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum plate
- treatment
- surface roughening
- electrolytic surface
- roughening treatment
- 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
Abstract
PURPOSE:To enhance printing capacity or printing durability and to enhance the controllability and stability of a process or the controllability of grain, by repeatedly performing the electrolytic surface roughening treatment of an aluminum support in an acidic electrolyte while interposing smut removing treatment on the way before performing the post-treatment thereof in the acidic electrolyte. CONSTITUTION:An AC current having a commercial three-phase AC as a power source waveform is applied between an aluminum plate and the electrode opposed thereto in an electrolyte containing nitric acid to apply electrolytic surface roughening treatment to the aluminum plate and the treated aluminum plate is immersed in an aqueous solution containing nitric acid to remove smut and the aC current having the commercial three-phase AC as the power source waveform is again applied between the aluminum plate and the electrode opposed thereto in the electrolyte containing nitric acid to apply electrolytic surface roughening treatment to said aluminum plate. Next, a DC current obtained by rectifying the commercial three-phase AC by thyristor is allowed to flow between the aluminum plate and the electrode opposed thereto in an electrolyte containing sulfuric acid to perform post-treatment performing the removal of the smut formed by electrolytic surface roughening treatment and the minute dissolution of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19452287A JPS6438291A (en) | 1987-08-05 | 1987-08-05 | Production of aluminum support for printing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19452287A JPS6438291A (en) | 1987-08-05 | 1987-08-05 | Production of aluminum support for printing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438291A true JPS6438291A (en) | 1989-02-08 |
Family
ID=16325931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19452287A Pending JPS6438291A (en) | 1987-08-05 | 1987-08-05 | Production of aluminum support for printing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6017993A (en) * | 1996-08-14 | 2000-01-25 | Showa Denko Kabushiki Kaisha | Thermoplastic resin composition containing titanium dioxide pigment, and process for preparing same |
-
1987
- 1987-08-05 JP JP19452287A patent/JPS6438291A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6017993A (en) * | 1996-08-14 | 2000-01-25 | Showa Denko Kabushiki Kaisha | Thermoplastic resin composition containing titanium dioxide pigment, and process for preparing same |
| US6107390A (en) * | 1996-08-14 | 2000-08-22 | Showa Denko K.K. | Thermoplastic resin composition containing titanium dioxide pigment, and process for preparing same |
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