Color design for cotton fabric by rapid in-situ synthesis of metal oxides on the fiber surface using organic solvent-assisted method

The coloration of cotton fabric with wild application has attracted extensive attention to cotton fiber , due to the efficient utilization of renewable industrial crops. However, the utilization of rapid in-situ synthesis of metal oxides with color is inadequate. Herein, a rapid strategy for constructing multi-color cotton fabric is designed to propose a rapid in-situ synthesis of metal oxides on the surface of cotton fiber in a high-temperature organic solvent system within 40 s. The colored metal oxide of cuprous oxide (Cu 2 O), tungsten trioxide (WO 3 ), and cobalt molybdate (CoMoO 4 ) are in-situ synthesis on the surface of cotton fibers by different precursor solutions. The bright-colored cotton fabrics are developed within 40 s as well as satisfactory K/S values of 7.53, 2.67, and 0.98, for Cu 2 O (Cu 2 O-Cotton), WO 3 (WO 3 -Cotton), and CoMoO 4 (CoMoO 4 -Cotton), respectively. The stable structure of the various colored cotton fabrics is demonstrated by level 3 of rubbing fastness and washing fastness, and acceptable air permeability . Moreover, assigned to the nature of particles, the colored cotton fabrics are fabricated with thermal stability and better ultraviolet protection factors. The rapid in-situ metal oxides with precursor solutions provide a time- and water-saving method to prepare colored cotton fabrics, which exhibits an ideal efficiency, and practical potential application for coloring and functionalization.