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    • 73. 发明公开
    • A method for making holograms and holograms
    • 维尔弗朗·赫尔斯特隆
    • EP1275488A1
    • 2003-01-15
    • EP02077761.1
    • 2002-07-09
    • Hologics S.r.l.
    • Orlandi, Raul Maria
    • B29C59/04
    • G03H1/028B29C59/04G03H2001/2615G03H2270/52Y10T428/24479Y10T428/2457
    • The system for production of thermoplastic film bearing microengravings on both sides foresees of the following stages:

      impression of the microengravings on one side of the film by an embossing process performed on a first embossing unit at a first temperature and a first pressure falling within the range of temperatures and pressures normally used for embossing of film produced from said material, and
      impression of the microengravings on the other side of the film by a subsequent embossing process performed on a second embossing unit at a second temperature considerable lower than said first temperature and a second pressure considerably higher than said first pressure with said second temperature and pressure being chosen in such a manner that said subsequent process does not affect the microengravings impressed in the first process.
    • 用于生产在两侧的热塑性薄膜轴承微雕刻的系统预见到以下阶段:通过在第一温度下在第一压花单元上执行的压花处理和第一压力落在该范围内的第一压力对薄膜一侧的微雕刻的印象 通常用于从所述材料制造的膜的压花的温度和压力,以及通过在相当低于所述第一温度的第二温度下在第二压花单元上执行的随后的压花加工在所述薄膜的另一侧上的微雕刻的印模,以及 所述第二压力明显高于所述第一压力,所述第二温度和压力选择为使得所述后续过程不影响在第一工艺中印刷的微雕刻。