Process for the preparation of thread, string, rope or woven fabric with photocatalyst for decomposing organic compounds

摘要

Glass fiber 3 is immersed into a titania sol and dried to adhere the titania gel on the surface of the glass fiber 3, and heated at a high temperature of 450 C to 650 C. In the high-temperature treated glass fiber 3, the titania gel adhered on the surface changes to titanium dioxide (TiO2) and a titanium dioxide layer 4 is formed on the surface of the glass fiber 3 as shown in Fig. 1. The titanium dioxide layer 4 has a layered structure in which it is adhered in the spots-like state on the surface of the glass fiber 3 as shown in the portion A or B in Fig. 1, and an outer light can be suitably transmitted through the glass fiber 3. The glass fiber 3 having the titanium dioxide layer 4 on the surface thereof can transmit outer light not only from the edge of the fiber but also from the outer peripheral surface, and can cause photocatalytic phenomenon at the portion of the titanium dioxide layer 4 by the specifically prepared illumination light such as an ultraviolet light irradiation lamp, etc., or sunlight, an interior light, etc.