The invention relates to a 
dyeing process for a 
modal / cotton blended fabric. The 
dyeing process comprises the steps that the fabric is placed in a vat body, water is input to the vat body to keep the bath ratio at 1:9, and 
snow white ginned cotton 
enzyme, glacial 
acetic acid and deoxidize 
enzyme are added; the 
modal / cotton blended fabric is dyed through the 
dyeing process at the constant temperature of 60 DEG C, wherein 6% of Avitera SE series dyestuff, 
anhydrous sodium sulphate and 
sodium carbonate are added for dyeing; after dyeing, the color of the 
modal / cotton blended fabric is compared with that of a dyeing board, after the color is consistent with the color of the dyeing board, the fabric is washed with 
clean water; a final treatment is conducted, wherein the alkaline liquor on the fabric surface is removed by adding surface 
active agent; glacial 
acetic acid and 
citric acid are added for adjusting the pH to 4.5; color 
softening agent and dye-fixing agent are added for color fixing. The dyeing process is mild in dyeing condition, convenient to operate, 
environmentally friendly, and capable of ensuring the 
fiber strength, fabric whiteness, capillary effect and the like after dyeing to meet the dyeing requirements. The Avitera SE series dyestuff is a novel high-fixation activated dye, lower in substantivity, good in leveling property and bright in color, and the dyed fabric with the Avitera SE series dyestuff is good in color fastnesses.