Thermochromic pigments embedded within polypropylene allow cups to alter their hue in response to temperature fluctuations. A common example is a cup that shifts from one color when cold to another when filled with a hot beverage. This dynamic shift is achieved through the use of leuco dyes encapsulated in microcapsules dispersed throughout the polymer matrix.
This technology offers several advantages. It can enhance the aesthetic appeal of a product, creating an interactive and engaging user experience. Furthermore, it can serve a functional purpose, acting as a visual temperature indicator to prevent burns or signal optimal drinking temperature. The development of this technology stems from advances in materials science and the increasing demand for novel and interactive consumer products.
