Method for improving the color fastness to wet rubbing of deep colored nylon/spandex knitted fabrics
The color fastness to wet rubbing reflects the degree to which dye molecules of dyed fabric and their at-tachments transfer to the standard white cloth for testing by contact and friction through interface interface contact friction in a wet state.Unqualified color fastness to wet rubbing reflects that there are many residual dyes and chemicals on the surface of the fabric,which requires soap washing and color fixing.Different fabrics require different dyes and fixing agents for dyeing,and their principles are also different.The methods for improving the color fastness to wet rubbing of nylon/spandex knitted fabrics mainly include the selection of dyes with high fastness,the reasonable selection of fixing agents,the scientific control of the temperature,time,pH and water hardness,the optimization of soap process,and the selection of suitable equipment.
color fastness to wet rubbingnylonknitted fabricdyeing and finishing process
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