Abstract
The polysiloxane modified with cationic and perfluorocarbon groups could form film on the polyester surface by macromolecular self-assembly process. The thin film on the polyester surface could affect the color shade of dyed materials. The effect of the polysiloxane film on the color shade of the dyed polyester was investigated by reflectance spectra, color yield (K/S) and the color differences (ΔE). The colorimetric data of CIELAB was discussed. The results show that the thin film of the polysiloxane modified with cationic and perfluorocarbon groups on the polyester surface had good water repellency. The effect of the polysiloxane film on the color shade of dyed polyester was noticeable. The K/S of the dyed polyester fabrics with the modified polysiloxane film obviously increased. The reflectance spectra of the dyed fabrics treated without and with the modified polysiloxane had not significant change.
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