LCR Hallcrest produce Thermochromic, Hydrochromic, Photochromic, Flash Reflective and Liquid Crystal Inks, Coatings and finished items that change colour.
*Chameleon® Thermochromic Inks & Coatings change colour in response to fluctuations in temperatures, from sources which are hot cold ambient or body temperature.. There are reversible and irreversible types.
*Liquid Crystals are highly responsive to temperature change, quickly changing colour reversibly as they are warmed or cooled. The usual appearance of these inks is against a black background where they reveal spectral colours (from red through greens and blues) when warmed,.
*Photochromic inks change colour when exposed to ultraviolet light usually from the sun (or a uv black light), from colourless indoors to vibrant colour outdoors.
*Chameleon® Hydrochromic Inks & Coatings react to the presence of water. We make Reversible and Irreversible Hydrochromic Inks.
*Flash reflective ink is transparent and becomes visible in flash photographs on mobile phones, and bright beams of light.
For more information, you can visit our specialised site www.colourchange.com