Security Fibres

Fine synthetic fibres that are added to the paper pulp during the manufacturing process. Security fibres can be found all over the document page or concentrated in a certain area. May luminesce in UV, IR light.

By visibility to the naked eye:

  • visible / colored;
  • invisible / colorless.

By color:

  • monochrome;
  • two-colored or multicolored with alternate fragments of various colors.

By form:

  • simple threadlike security fibres with a constant cross-section;
  • complex security fibres with a variable cross-section (ZONA security fibres developed by GOZNAK, Russia).

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