Environment-friendly process of zero-discharge dyed jean fabric

The invention relates to the field of processing of jean fabrics, in particular to an environment-friendly process of a zero-discharge dyed jean fabric. The environment-friendly process comprises thefollowing steps of 1, white warp treatment; 2, primary drying; 3, coating spraying-dyeing; 4, secondary drying; 5, sizing; 6, third-time drying; 7, shaft falling. According to the process, warp is dyed through a coating spraying-dyeing technology, in the dyeing process, sodium hydrosulfite, sodium sulfide and other highly-corrosive auxiliary agents are not needed, after dyeing, the fabric does notneed to pass through a washing vat, and zero-sewage discharge is achieved. 本发明涉及牛仔面料加工领域，具体是一种零排放染色牛仔面料的环保工艺方法，包括以下步骤：步骤一：白经纱处理作业；步骤二：初级烘干作业；步骤三：涂料喷染作业；步骤四：二次烘干作业；步骤五：上浆作业；步骤六：三次烘干作业；步骤七：落轴作业。本申请经纱使用了涂料喷染技术染色，染色过程不需要用保险粉、硫化碱等强腐蚀性助剂，染色后不需要过洗水缸，零污水排放。