Cold dyeing process for cellulose fiber fabric

The invention provides a cold dyeing process for a cellulose fiber fabric. The process comprises the following steps of: a, pre-treating a fiber fabric; b, preparing mixed alkali liquid and dye solution respectively; b, pumping the mixed alkali liquid and the dye solution into a chassis by using a proportioning pump to perform mixing so as to obtain dye solution; d, soaking the fiber fabric into the chassis to pad the dye solution; e, curling the padded fiber fabric; f, heaping and color-fixing the curled fiber fabric; and g, after heaping, finishing dyeing by washing, soaping, washing, drying, tentering and finishing. The cold dyeing process has the advantages that: dyeing can be finished at normal temperature without a vapor-solid process; washing and post finishing can be performed, and the energy consumption is low; and the dye solution contains a little chemical auxiliary agent, and is favorable for sewage treatment. Compared with long rolling and dyeing, the cold dyeing process has greater advantages that the dyeing production is performed by adjusting directly based on a small sample formula without trying a large sample, the one-time success rate is high, and the sample cost is reduced.