The sodium periodate for selective oxidation modification of cotton fabric was selected and the spreading performance of silver-based ink droplets on its surface was investigated.The research results indi-cated that the oxidation of sodium periodate increased the hydrophobicity of the cotton fabric surface,thereby shortening the spreading time of silver-based ink droplets and reducing the spreading area.In addition,due to the oxidation of sodium periodate,the surface roughness of cotton fabrics increased,resulting in a decrease in the roundness of ink droplets spreading.The higher the speed of ink droplets move,the shorter the spreading time on the fabric,and the spreading area and roundness also decreased.
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