Colour-changing T-shirts make the most of thermochromic or photochromic inks that react to temperature modifications or UV rays, respectively. To activate the colour change indoors, particular strategies are crucial.
For thermochromic inks, warmth activation is required. Holding a heat object close to the design or utilizing a hair dryer on a low warmth setting can provoke the colour change. Alternatively, putting the T-shirt in a heat setting, reminiscent of close to a radiator, also can activate the impact.
