发明名称 DUPLICATION OF FLAT PLATE-SHAPED INFORMATION RECORDING CARRIER
摘要 PURPOSE:To duplicate the captioned recording carrier by a method wherein a liquid-phase resin which cures when subjected to radiant light is sprayed under pressure under a specific condition so that the involvement of air bubbles into the resultant resin layer is prevented. CONSTITUTION:A backing carrier 4 is held in opposite relationship with an information recording carrier duplicating die 1 leaving therebetween a gap 8 which is greater in thickness than a predetermined informatin copying layer and the die 1 has convex and concave sections corresponding to recorded information. With the above arrangement, the liquid-phase molding resin, which cures when subjected to radient light, is injected into the gap 8. In this case, the lowering speed of a pressure member 9 for pressing the backing carrier 4 against the die 1 is so determined that the maximum spreading speed of the pressure spray of the resin becomes less than 10cm/sec (for example, the lowering speed of the pressure member may be less than several mm./sec when the vicosity of the resin 19 is around 1,000CP) and after spraying, the resin 19 is cured. Further, the pressing member 9 is moved at high speed except during the lowering motions thereof in the process of the press-coating spray of the resin.
申请公布号 JPS5798326(A) 申请公布日期 1982.06.18
申请号 JP19800176078 申请日期 1980.12.12
申请人 MATSUSHITA DENKI SANGYO KK 发明人 KASHIHARA TOSHIAKI;ITOU KEISUKE;OKINO YOSHIHIRO
分类号 B29C39/02;B29C39/00;B29C39/10;B29C39/44;B29C61/00;B29D17/00;B29K105/24;B29L17/00;G11B3/70 主分类号 B29C39/02
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