Method of manufacturing holographic replicas
公开/公告号:
US3758649 A
公开/公告日期:
Sep 11, 1973
被引量:
摘要:
A holographic replica in the form of a tape comprises a thermoplastic vinyl polymeric sheet having holographic information in the form of a relief pattern embossed on a surface thereof. The polymeric sheet generally has a thickness of 1 to 6 mils. and the embossed information generally has a contour depth of about up to 500A. The process for making the holographic replicas comprises embossing a pattern consisting of peaks and valleys from either an original holographic image or a holograph master onto a thermoplastic polymeric sheet at a temperature substantially below the flow temperature of the thermoplastic sheet and with a pressure of less than about 200 psi.
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