Study Of Modification And Dyeing Technology In Wool Fibers

This paper first employed oxidant M and protease to modify wool fibers and compared to chlorinating agent (DCCA)modification; the structure and properties of the different surface modified wool were studied. Then, SEM, alkali solubility and FTIR-ATR were devoted to investigate the structure of the modified wool while tensile property and dyeability of reactive dyes were devoted to represent the properties of the modified wool. Finally, the feasibility of cationic Gemini surfactants M as low temperature dyeing of wool was explored and the high temperature protective effect for wool fibers was investigated using maleic acid, maleic anhydride, BTCA, etc.Our study showed that 1) The extent of surface squama wiped off and the intension of characteristic peak of disulfide bonds modified were up to the modification method and the concentration of oxidant M or protease. 2) The moisture regain, alkali solubility ,weight-loss ratio, the rate of dye-uptake for reactive dyes all increased with the concentration increase of oxidant M or protease. However, the breaking strength and ductility declined. 3) The cationic Gemini surfactants M could be used in low temperature dyeing of Wool fibers. 4) Maleic anhydride, maleic anhydride and the cationic Gemini surfactants M had a better protective effect on wool fibers.