Abstract: A release liner 10 comprising a polymeric film substrate 11, typically PET film, having a transparent layer 12 of electrically conductive polymer, preferably a PEDOT-PSS (Polyethylenedioxythiophene/polystyrenesulphonic acid), formed on one side thereof, the conductive polymer layer 12 being over coated with a transparent layer 13 of a curable silicone polymer or copolymer.

Abstract: Composite film structures exhibit a predetermined finished color tone comprised of a transparent film layer which exhibits a color deficiency as compared to the finished color tone, and a pigment which is visually associated with, and satisfies the color deficiency of, the film layer. Most preferably, the pigment is provided as a homogenous dispersion in a transparent color-matching layer positioned adjacent to the film layer. Thus, when the film and color-matching layers are viewed collectively as a unit, the perceived color tone will be that of the finished predetermined color tone. That is, the color-matching layer provides visually an additive effect on the perceived color of the composite film structure.

Abstract: A transaction card includes an optically active film composite comprising a PET polymeric film substrate covered with a hard coat layer of resin having a thickness of less than 6 microns, and a pencil hardness of at least 2H, the hard coat including a polymeric resin binder with nanoparticles of Lanthanum hexaboride absorbing light having a wavelength in the range of 700-1100 nm. The composite preferably has a VLT of about 50% and a transmission in the near IR wavelength of less than 10%.