Thermochromic dyes: Smart textiles: Heat Reactive Jacket by Stone Island, a tracksuit top which changes colour from black to green/ blue once it has reached 27 degrees. The fabric that is cotton nylon with thermosentive liquid crystals that react to heat.
The patterns on the umbrella are made of hydrochromatic ink which changes colour when rain falls. The black and white umbrella becomes colourful the moment it rains. Hydrochromic ink is a kind of water based ink, which can change colour from white colour to transparent when it gets wet,and would return back to original colour when it gets dry,hydrochromic ink can be applied through screen printing
Philips Luminous textiles is a company who focus on creating garments which have similar "sensitive" qualities as human skin. ‘Bubelle’, is a delicate ‘bubble’ dress illuminated by patterns that changed dependent on skin contact. 'Bubelle' was developed as part of the SKIN research project which looks into emotional sensing and explores technologies that are ’sensitive’ rather than ‘intelligent’