Abstract
In order to understand the effect of laundering by detergent containing bleaches on cotton fabrics, two detergents with and without bleaches were used during laundering, and the changes in structures and properties of cotton fabrics were investigated after laundering. The structure of the cotton before and after laundering was evaluated by the X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and field scanning electron microscopy (FSEM). Meanwhile, the tensile strength, copper number and dyeing properties of cotton fabric have been studied for evaluating the chemical damage. The results showed that the damage of fabric laundering by detergents containing bleaches is more serious than that by detergents without bleaches. FTIR and copper number results revealed that the C-6 hydroxyl groups of the glucose repeating unit of cellulose were oxidized. XRD, FSEM and dyeing results indicated that the cotton fabrics have been damaged during laundering with detergents containing bleaches.
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