| 摘要 |
A method for producing infra-red reflective substrates, including moulded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a tetrabenzodiazadiketoperylene colourant (pigment or dye). The thus obtained, also claimed substrates so produced are transparent to much of the IR radiation not reflected and articles, such as multilayered polymeric articles, are produced which can also be subjected to laser welding.
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