COLORANT COMPOSITION FOR HEAT SHIELDING FILM CONTAINING NEAR INFRARED ADSORPTION DYES

摘要

PURPOSE: A colorant composition for a heat shielding film is provided to perform uniform dyeing of dye, to shield near-infrared wavelength, and to ensure high temperature stability. CONSTITUTION: A colorant composition for a heat shielding film comprises a polyester resin 100 parts by weight and a near-infrared absorption dye 1 ~ 15 parts by weight. The near-infrared absorption dye penetrates the wavelength of visible light area of 400~780nm. The near-infrared absorption dye selectively shields the wavelength of the near-infrared radiation of 780~1,500nm. The near-infrared absorption dye comprises a transparent plastic high heat resistance resin 90~98 weight% and near-infrared absorption dye 2~10 weight%.