Dyeing process for improving spinnability of hemp wool tops

The invention provides a dyeing process for improving spinnability of hemp wool tops. The dyeing process comprises the following steps that (1), degumming treatment is carried out, specifically, a penetrating agent, a detergent, a dispersing agent and soda ash are added, the pH value of a dye bath is adjusted to 7-7.5, heat preservation is carried out at 90-95 DEG C for 60 minutes, and washing iscarried out at 70-80 DEG C for 30 minutes; (2), balance hot washing is carried out, specifically, the pH value of the dye bath is adjusted to 7-7.5, and heat preservation is carried out at 100-115 DEGC for 20-40 minutes; (3), fluffing treatment is carried out, specifically, a softening agent is added, and heat preservation is carried out at 65 DEG C for 20-40 minutes; (4), dyeing is carried out,specifically, a permeation defoaming agent, a penetrating agent, a dye and anhydrous sodium sulphate are sequentially added, heating is carried out to 65 DEG C, sodium carbonate is quantitatively added for 60 minutes, heat pres