Regarding the selection of dyeing machine, we should choose the dyeing machine which can ensure the dyeing quality of the product and is suitable for fabric dyeing; when selecting dyes, we should also pay attention to the varieties, pay attention to the inspection between batches of dyes, ensure that the dye room is clean, ventilated and dry, and do a good job of dyestuff moisture-proof; the formulation of dyeing process is also the key, and the laboratory sample should imitate the actual situation of large-scale production to a large extent When the sample is put into production, the technologist should adjust the process appropriately according to the difference between the small sample and the large sample, the previous experience and the mastery of the dye performance, so as to obtain the process of the large sample production; the operation of the proofing personnel should be standardized, and the training in this respect can be strengthened.