Dyeing method for improving reactive dye fabric tray dyeing color strength

The invention relates to a dyeing method for improving the dip-dye color depth of an active dye fabric, which includes: (1) when dyeing is started, adding the fabric, salt and a fixing agent, alkali, into a dye bath at the constant temperature of 40 to 90 DEG C to be operated for 10 to 30 minutes to lead the fabric to uniformly absorb the salt and alkali agent; (2) then using a continuous liquid adding device to add the dye slowly for 30 to 90 minutes, then continuously dying for 15 to 30 minutes; (3) after dyeing is finished, the fabric is washed by water, washed by soap, washed by water and then dried. The invention can acquire the color deeper than that of a normal technique, can remarkably save the dye, reduce the discharging of contaminations and is suitable for the developing direction of ecological energy-saving dyeing technique. The dyeing method is suitable for the dyeing of the fiber woven fabric and the knitting of fibrin such as cotton poplin, khaki and knitting, etc. The effect is extremely remar