Finishing of cotton fabrics with aloe anthraquinones in combination with polycarboxylic acids

Aiming at the shortcomings of cotton fabric such as poor in UV and wrinkle resistance,aloe anthraquinones and citric acid,tartaric acids were used to finish it so that fast chemical bonding between aloe extraction and macromolecules of cotton fibers were achieved through the bridging function of(polycarboxylic) acids.Meanwhile,cotton fabrics have been rendered with perminent UV and wrinkle resistance.Scanning electron microscope,infrared spectrogram and Xray diffraction were used to characterize the treated fabric.It was confirmed that esterication reaction occurred between(polycarboxylic) acids and macromolecule of cotton fiber according to ring-anhydride mechamism and aloe anthraquinones were fixed on the cotton fiber as chemical bond through the bridging function of(polycarboxylic) acids.The ultraviolet transmissibility,breaking strength,whiteness,crease recovery angle of the treated fabrics were examined.The results indicated that the wrinkle-resistance and anti-ultraviolet properties of the fabric improved remarkably.