| 초록 |
Reduction of energy and pollution in cotton dyeing process are gaining attention, since cotton fabrics are widely consumed in the global textile market. However, in the traditional dyeing process with reactive dyes, it not only consumes a large quantity of energy and water, but also releases huge amounts of wastewater containing salts, alkalis, dyes and various auxiliaries. Here, for less consumption of energy and pollutants, two halochromic rhodamine dyes with radical sensitive group are synthesized and incorporated onto cotton fabrics under LED-UV irradiation. The synthesized dyes shows outstanding dyeability and fixation after washing and drying. In addition, the dyed fabrics exhibit distinctive color change after exposure to acidic gas due to superior pH sensitivity of the dyes. From these results, UV-induced photografting can be a promising candidate as an eco-friendly dyeing method, providing a wide range of applications. |
