Method for producing optical variable device (OVD) two-dimensional code hot stamping foil through aluminum washing process

Method for producing optical variable device (OVD) two-dimensional code hot stamping foil through aluminum washing process

  • CN 102,700,285 B
  • Filed: 07/03/2012
  • Issued: 04/08/2015
  • Est. Priority Date: 07/03/2012
  • Status: Active Grant
First Claim
Patent Images

1. , by washing the method for aluminium explained hereafter OVD Quick Response Code stamping systems, it is characterized in that, comprise the following steps:

  • A, coating release layer and Information Level;

    in PET film, be coated with release layer and Information Level respectively by high-precision high-speed coating machine;

    B, mold pressing;

    the PET film of coated release layer and Information Level is carried out mold pressing through positioning module press;

    C, printing varnish;

    by printing machine by full for the film after mold pressing version printing protection gloss oil, to improve ply adhesion, strengthen peeling effect, in gloss oil, add according to the ratio of 5;

    1 the anilox printing that curing agent adopts 180-210 order/30-40 μ

    m during printing protection gloss oil, oven for drying is entered after printing, temperature controls be not less than 90 DEG C, and deposits and enter subsequent processing again in 24-48 hour, so that protective layer solidification;

    D, location become code printing;

    the film after printing protection gloss oil carries out the printing of change code by industrial code-spraying print system, to aluminium ink be washed by 2 D code information positioning printing to the specific region on film, location becomes code printing use and washes aluminium ink, and in temperature >

    =80, DEG C environment carries out drying afterwards;

    E, vacuum aluminum-coated;

    to carry out vacuum aluminum-coated with aluminum-spraying machine film top layer after printing, form metallic aluminum;

    F, wash aluminium;

    the film after above-mentioned operation being completed is through washing step, the aluminium lamination being printed with the specific region washing aluminium ink comes off and forms clear area after washing, be not printed with the aluminium lamination washing aluminium inked areas to remain, clear area and aluminium lamination district form two-dimension code pattern jointly;

    G, coating gum;

    wash the glue coating water layer on high speed coating machine of the film after aluminium.

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