FIELD: technological processes.
SUBSTANCE: invention is related to film, in particular foil for impression, laminated film or film for stickers, which comprises at least one anisotropic polymer layer of at least partially oriented liquid-crystal material. Anisotropic polymer layer has one or several first zones that create the first degree of protection, in which anisotropic polymer layer has linear polarising or polarisation direction rotating properties, and one or more second zones, which create the second degree of protection, in which anisotropic polymer layer has circular-polarising properties. At that the first degree of protection is visible through the first polariser, and the second degree of protection - when looking through the second polariser that reacts to another condition of polarisation.
EFFECT: development of film that has high degree of protection against counterfeit and copying due to combination of different zones that react to different conditions of polarisation.
31 cl, 9 dwg
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Authors
Dates
2009-07-27—Published
2005-04-13—Filed