Study on the Application of Eco-friendly Plant Fixing Agent to Natural Dyes

摘要

A plant fixing agent ZF was prepared from natural plant materials, and its physicochemical properties, fixing mechanism and effects on the application were studied. It was showed that there were not formaldehyde, heavy metal ion and carcinogenic aromatic amines. Appling ZF to natural dyes on cotton fabrics, the color fastness could be improve by 0.5-2 grades, and the fixing process had little influence on capillary effect and bursting strength. The results of TGA and UV transmittance showed that the thermal stability of cotton fabrics treated with ZF had little change and their ultraviolet resistance was improved. After the analysis of XRF, FTIR and SEM, it was concluded that ZF mainly had crosslinking capability to form film on the surface of fiber, and a tiny amount of metal ions such as Mg and Al inside the fixing agent acted as auxiliary intermediate agent. In general, this natural plantfixing agent was an eco-friendly and effective fixing agent.