Liquid crystalline filter dyes for imaging elements

摘要

This invention is a dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I:wherein:D is a merocyanine dye;each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water;each X is a nonionic substituent;n is 1 to 10;m is 0-10; andthe resulting dye forms a liquid-crystalline phase in solvent.The dispersion is particularly useful in imaging and photographic elements.