Chromazone®

Reversible Thermochromic Pigments

Chromazone free-flowing powders and aqueous dispersions are microencapsulated thermochromic pigments which change colour when heated. Based upon a combination of colour formers (leuco dyes), colour developers and melt materials, Chromazone changes from coloured in its cold state to become colourless when heated above the activation temperature with colour returning once the material is cooled.<...    Read more  


Chromazone free-flowing powders and aqueous dispersions are microencapsulated thermochromic pigments which change colour when heated. Based upon a combination of colour formers (leuco dyes), colour developers and melt materials, Chromazone changes from coloured in its cold state to become colourless when heated above the activation temperature with colour returning once the material is cooled.

These materials can be used in a variety of applications from security and brand protection through to novelty promotional products and toys and are suitable for aqueous, non-aqueous and radiation cured formulations. Standard activation temperatures are 15 °C (fridge temperature), 31 °C (body temperature) and 47 °C and these are available in a variety of colours.

TMC are also able to customize products to customer requests.



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Features


    • Available at any temperature between -20 °C and +70 °C in a variety of colours

    • Lightfastness 1 – 3 (Blue Wool Scale).

    • Particle Size <7 µm

    • Bisphenol-A free

    • Available as either aqueous dispersions or free flowing powders

    • Suitable for aqueous, non-aqueous and UV curing formulations

Benefits


    • Reversible colour change for coatings, inks and plastics

    • Changes from coloured to colourless on heating

Typical Applications


    • Security and brand protection.

    • Anti-counterfeiting

    • Product labelling and temperature indication

    • Interactive packaging and promotional materials

    • Thermochromic plastics


     

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