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Plastics

Keeping within the colour specification in the plastics industry is essential, as colour quality and consistency plays a critical part in quality evaluation. Defining the colour of your product and ensuring colour accuracy every time is critical to long-term success. Reliable and repeatable colour test results are the key to ensuring final product quality, and also […]

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Keeping within the colour specification in the plastics industry is essential, as colour quality and consistency plays a critical part in quality evaluation.

Defining the colour of your product and ensuring colour accuracy every time is critical to long-term success.

Reliable and repeatable colour test results are the key to ensuring final product quality, and also to minimise production costs. Speed of analysis can also be vital for efficient process control. Simplicity of operation helps to reduce error, and increase productivity.

Scales & Values

Grading techniques are widely used to assess product colour by comparison with a representative series of fixed colour standards.

For many product types, a characteristic set of standards was agreed and adopted to aid colour control and the communication of colour specifications; the result is a selection of traditional colour grading scales that have been adopted as industry standards and are still in common use today.

Your Colour Scale requirement determines your instrument choice.
  • CIE 94
  • CIE L* u* v* Colour Space
  • CIE L*a*b
  • CIELAB (L*C*h)
  • CMC Tolerancing
  • Delta E* colour difference
  • Hunter Lab
  • Metamerism index
  • Spectral data
  • Transmittance
  • Whiteness Index (ASTM E 313)
  • xyY chromaticity co-ordinates
  • XYZ tristimulus values
  • Yellowness Index (ASTM E 313)