Claims
- 1. A method for producing a medium for optically storing records, comprising:
- a first step of forming a record layer on a first side of a rectangular base material;
- a second step of forming a first protective layer of a material by roll coating on the record layer formed in said first step; and
- a third step of dividing or cutting the base material, on which the record layer and the first protective layer are formed by said first and second steps, into predetermined shapes,
- wherein said first step comprises a first sub-step of forming a high reflectivity layer on the first side of the rectangular base material, a second sub-step of forming a resist layer on the high reflectivity layer formed by the first sub-step, a third sub-step of subjecting the high reflectivity layer and the resist layer to mask exposure, and a fourth sub-step of etching the high reflectivity layer subjected to mask exposure in the third sub-step, and
- wherein said material of said first protective layer has a lower Young modulus than the Young modulus of said base material.
- 2. The method according to claim 1, further including a pre-processing step to be performed before said first step comprising a step of forming a hard coating layer on a second side of said base material and a step of forming a second protective layer by a roll coater on the first side of the base material.
- 3. The method according to claim 2 wherein said second protective layer is formed by a material of a lower Young modulus than the Young modulus of said base material.
- 4. The method according to claim 3 wherein said first protective layer and said second protective layer are formed of a material with a Young modulus of not more than 2.times.10.sup.10 dyn/cm.sup.2.
- 5. The method according to claim 1 wherein said first protective layer and said second protective layer are formed of a material having a lower thermal conductivity than said base material.
- 6. The method according to claims 3 or 5 wherein said first protective layer and said second protective layer are formed of a UV curing resin.
- 7. The method according to claim 1 wherein a protective film is subjected to printing in advance of its being roll coated on the first protective layer.
- 8. The method according to claim 1 further comprising the step of printing on said first protective layer after said base material, said record layer, and said first protective layer are cut in said third step.
- 9. The method according to claim 8 wherein said printing is performed by pad printing.
Priority Claims (2)
Number |
Date |
Country |
Kind |
63-164161 |
Jul 1988 |
JPX |
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63-164163 |
Jul 1988 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 07/935,464, filed Aug. 27, 1992, now U.S. Pat. No. 5,364,735, which is a continuation of application Ser. No. 07/455,400 filed Feb. 23, 1990 (now abandoned).
US Referenced Citations (11)
Divisions (1)
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Number |
Date |
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Parent |
935464 |
Aug 1992 |
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Continuations (1)
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Number |
Date |
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455400 |
Feb 1990 |
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