Self-cleaning of Methylene Blue and Acid Blue 113 on Wool/Polyester Fabric Treated with Nano Titanium Oxide under UV Irradiation without Yellowing

This research aims to create the selfcleaning property on wool/ polyester fabric using TiO2 nano-particles. In order to provide the fabric with higher absorption of nanoparticles, the oxidation of wool with KMnO4 were carried out. The crosslinking agent namely butane tetra carboxylic acid (BTCA) was used to stabilize the nanoparticles on the fabric surface. To investigate the properties on the treated fabric, discoloration of Methylene Blue and Acid Blue 113 stains, water drop absorption, crease recovery angle, yellowing and bending of the fabric were examined and the results reported. Furthermore, the FT-IR spectrum of some samples was analyzed. The changes in color differences for different samples showed that an appropriate discoloration achieved on the fabric samples treated with TiO2 after UV radiation. Also the reflectance spectrum of samples was investigated and the results confirmed the UV absorption by TiO2 nano particles that protect the fabric from yellowing. J.Color Sci. Tech. 4(2010), 115-123© Institute for Color Science and Technology.