Application of new soaping system in low temperature soaping of reactive dyes
A new type of 50℃ low temperature soaping system was obtained by compounding the stripping and low foaming detergent FMES with the chelating dispersant EDDHA-Na,hydrogen peroxide and its catalyst PGM.The sys-tem used catalyst PGM and hydrogen peroxide to rapidly decompose peroxyacid with stronger oxidation ability at low tem-perature,which could completely destroy the chromophore group of dye in the residual solution,reduce the color of the res-idue and achieve the anti-soaping effect of low-temperature soaping.The composition of the new low temperature soaping system was optimized by testing the soaping fastness,the absorbency of dyeing residue and the color change of the fabric surface.The consists of low temperature soaping system were as follows:FMES 1.0 g/L,PGM 0.9 g/L,H2O2 3 g/L,ED-DHA-Na 1.5 g/L.The four-component soaping system has strong soaping power at low temperature and obvious anti-stain-ing effect,and the invention can realize low temperature,small bath ratio and short process soaping of reactive dyes.
reactive dyeslow temperature soapinganti-staining propertiescolor fastness
万方数据
维普
