Preparation of Microemulsions of the Polysiloxanes Modified with Different Amines and Their Effect on the Color Shade of Dyed Cellulose

摘要

The microemulsions of three polysiloxanes modified with different amines are prepared. Three functional polysiloxanes are aminopropyl polydimethylsiloxane AP-PDMS, N-(beta-aminoethyl)-gamma-aminopropyl polydimethylsiloxane AEAP-PDMS, and N, N-(gamma-dimethylamino-propyl)-gamma-aminopropyl polydimethylsiloxane DMAP-PDMS, respectively. The effect of the microemulsions on the color shade of the dyed cellulose with reactive dyes is investigated by reflectance spectra, color yield (K/S), and the color differences (DE). The results show that the K/S of the yellow fabric treated with AP-PDMS decreased. The K/S of the red fabrics treated with AP-PDMS, AEAP-PDMS, and DMAP-PDMS all had very slight increase. The K/S of the blue fabrics treated with AP-PDMS, AEAP-PDMS, and DMAP-PDMS also all increased. The handle of the sample treated with AEAP-PDMS was better than those of the other samples, but the whiteness of it was worse. The wash fastness and the wet rubbing fastness of the dyed fabrics treated with three functional silicones had not noticeable change.