| abstract |
The invention relates to pigment flakes comprising a chiral liquid crystalline polymer material, said chiral liquid crystalline polymer material serving as carrier material or being coated onto a carrier material, characterized in that the pigment flakes comprise at least one dye that is chemically bound to the polymer. The invention further relates to methods of manufacturing such pigment flakes and to the use of such pigment flakes in paints, printing inks, spray paints, cosmetic products or coloured plastics, optical elements and security applications. |