The invention provides a method for improving the light fastness of
flame-retardant knitted fabrics, which effectively solves the problems of low light fastness and serious
fading of traditional
flame-retardant knitted fabrics. It includes the following steps: Step 1,
dyeing;
dyeing the knitted fabric lightly; Step 2,
flame-retardant finishing; performing flame-retardant finishing on the knitted fabric in step 1 according to the normal process, so that the knitted fabric is endowed with fireproof and flame-retardant functions; Step 3, Padding and rolling treatment; the knitted fabric after flame retardant finishing in step 2 is subjected to padding and rolling treatment with live dyes, penetrants and
dyeing catalysts; step 4, stacking; step 5, washing; step 4 The flame-retardant knitted fabric that has been piled up for a long time is washed in the overflow dyeing
machine to wash away excess dyes and auxiliaries, and the fabric of the flame-retardant knitted fabric is retracted; step 6, setting and
drying; step 7, padding again; Use the
formaldehyde-free color-fixing agent to pad the flame-retardant knitted fabric after setting and
drying in step six; further increase the fastness; step eight, test and compare; the effect of this method is obvious.