| 摘要 |
Fibers, in particular black, brown or gray fibers, containing IR-transparent dyes. IR-transparent dyes can be di-, tri- or multichrome dyes or pigments, in particular perylene pigments. The fibers can contain perylene pigments containing one of the isomers of formula Ia or Ib in which the radicals R1 and R2 indicate phenylene, naphthylene or pyridylene independent of one another, said phenylene, naphthylene or pyridylene optionally being singly- or multiply-substituted by C1-C12 alkyl, C1-C6 alkoxy, hydroxy and/or halogen, or a mixture of both isomers. Fiber materials under consideration include plastics or glass. The fibers are used for thermal management, among other things, or for the production of textiles or fabrics. |
