Coloration-changing T-shirts make the most of thermochromic or photochromic inks that react to temperature adjustments or UV rays, respectively. To activate the colour change indoors, particular strategies are mandatory.
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, inserting the T-shirt in a heat atmosphere, reminiscent of close to a radiator, also can activate the impact.
