Products News Partners Contacts Red Yellow Orange Blue Green Purple Black Search by products application area Colour FAT-SOLUBLE DYES GENERAL CHARACTERISTICS Colorants are defined as colorants that dissolve completely in the polymer at processing temperatures. Dyes do not dissolve in water, but partially dissolve in some organic solvents, fats and petroleum products. In polymer products colored with pigments, the color effect is achieved due to the relationship between absorption, reflection and scattering of light on the surface of crystalline pigment particles (Fig. fig a. and b). Fig. The difference between the optical effects of pigments (a) and dyes (b) in a colored polymer Usually, the use of dyes is limited to transparent (amorphous) polymers, for example, PS, PMMA, PC and PET at a concentration of 0.01 to 0.1%, depending on the required color intensity. ST. PETERSBURG , 196084, Russia, St. Petersburg, st. Kievskaya, 6, building 1, lit. B Tel./fax: (812) 7777-33-4, Fax: (812) 7777-33-5 MOSCOW , 140005, Russia, Moscow region, Lyubertsy, st. Kirov, 20-A. Tel./fax: (495) 501-62-00 info@holliday-pigments.ru © Holliday Pigments, 2011