| 摘要 |
Fibers, especially black, brown or gray fibers, comprising IR-transparent colorants. IR-transparent colorants may be di-, tri- or polychromatic dyes or pigments, especially perylene pigments. The fibers may comprise perylene pigments which comprise one of the isomers of the formula Ia or Ib in which the R1 and R2 radicals are each independently phenylene, naphthylene or pyridylene, each of which may be mono- or polysubstituted by C1-C12-alkyl, C1-C6-alkoxy, hydroxy and/or halogen, or a mixture of the two isomers. Useful fiber materials include plastics or glass. The fibers find use, among other uses, in heat management or for production of textiles or fabrics. |
