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Plastic Industry

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Coloration of Plastics is a key process which is mainly carried out to improve Plastics’ aesthetics and to enhance Plastics’ performance in use.

From the very beginning of the history of Plastics, inorganic pigments have very well fitted into the coloration of such material due to their excellent general:

  • Compatibility with all kinds of polymers
  • Easy dispersion
  • Maintenance of polymer’s dimensional stability
  • Heat fastness
  • Light and weather fastness
  • Opacity
  • Insolubility, avoiding migration tendencies

Moreover, and with a few well-known exceptions, inorganic pigments are generally safe in processing and final use and environmentally friendly too.

Range of Applications What ultramarine is used to color Characteristic(s) of ultramarine which makes it suitable for this purpose
PLASTICS and FIBRES Thermoplastics (eg polyethene) plastic packaging – film and containers, plastic pipes, vinyl and linoleum floor coverings, synthetic fibres (eg nylon), natural and synthetic rubber. Ultramarine does not cause shrinkage, distortion or warping of polymers in which it is incorporated (it gives “dimensional stability”). Ultramarine does not “leak” poisonous effluent in a landfill site in which the plastics or fibres are dumped.