JPS5747625A - Method for duplication of flat plate-shaped information recording medium - Google Patents
Method for duplication of flat plate-shaped information recording mediumInfo
- Publication number
- JPS5747625A JPS5747625A JP12376080A JP12376080A JPS5747625A JP S5747625 A JPS5747625 A JP S5747625A JP 12376080 A JP12376080 A JP 12376080A JP 12376080 A JP12376080 A JP 12376080A JP S5747625 A JPS5747625 A JP S5747625A
- Authority
- JP
- Japan
- Prior art keywords
- backing member
- molding resin
- liquid molding
- poured
- liquid
- 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.)
- Granted
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE: To obtain a high-quality duplicate disk with no gas bubbles mixed therein, by a method wherein a liquid molding resin layer is previously provided between a backing member and a support frame for the backing member, and while maintaining this condition, a liquid molding resin is poured.
CONSTITUTION: A small amount of the liquid molding resin 25 is poured through a pouring valve shaft 11 which is vertically movably provided at a central part of a metallic clamp 14 of a stamper, and the surface (which is to be faced to the backing member 2) of the support frame 19 provided at the upper end of the shaft 11 is previously wetted with the liquid molding resin 25. When placing the backing member 2 on the frame 19, the corner parts formed by the backing member 2 and a chamfered part 22 is filled with the liquid molding resin 25 so as to prevent the generation and remaining of gas bubbles. Then, the pouring valve shaft 11 is moved upward to enable the backing member 2 to be placed in position. The backing member 2 is placed in position, and while maintaining the condition where the corner parts formed by the chamfered part 22 and the backing member 2 is filled with the liquid molding resin, a further amount of the liquid molding resin required for forming a transfer layer is poured. Then, after pressing and coating operations, the liquid resin layer is hardened by irradiating it with ultraviolet rays through the backing member 2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12376080A JPS5747625A (en) | 1980-09-05 | 1980-09-05 | Method for duplication of flat plate-shaped information recording medium |
| EP81304051A EP0047645B1 (en) | 1980-09-05 | 1981-09-04 | A method of producing an information recording disk |
| US06/299,580 US4472124A (en) | 1980-09-05 | 1981-09-04 | Device for producing an information recording disk |
| DE8181304051T DE3167483D1 (en) | 1980-09-05 | 1981-09-04 | A method of producing an information recording disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12376080A JPS5747625A (en) | 1980-09-05 | 1980-09-05 | Method for duplication of flat plate-shaped information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5747625A true JPS5747625A (en) | 1982-03-18 |
| JPS6328776B2 JPS6328776B2 (en) | 1988-06-09 |
Family
ID=14868602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12376080A Granted JPS5747625A (en) | 1980-09-05 | 1980-09-05 | Method for duplication of flat plate-shaped information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5747625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187035U (en) * | 1984-05-23 | 1985-12-11 | 株式会社 テクノプラス | Inner peripheral mounting structure of stamper for forming disc-shaped recording media |
| CN111452272A (en) * | 2020-04-14 | 2020-07-28 | 佛山市三乐建材实业有限公司 | Manufacturing method of plate mold forming cylinder and wood grain plate transferred by using cylinder |
-
1980
- 1980-09-05 JP JP12376080A patent/JPS5747625A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187035U (en) * | 1984-05-23 | 1985-12-11 | 株式会社 テクノプラス | Inner peripheral mounting structure of stamper for forming disc-shaped recording media |
| JPS6347474Y2 (en) * | 1984-05-23 | 1988-12-07 | ||
| CN111452272A (en) * | 2020-04-14 | 2020-07-28 | 佛山市三乐建材实业有限公司 | Manufacturing method of plate mold forming cylinder and wood grain plate transferred by using cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328776B2 (en) | 1988-06-09 |
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