The invention provides a production method for one-bath one-step
dyeing of a disperse /
reactive dye, and belongs to the technical field of
textile dyeing. According to the method, firstly, woven gray cloth is subjected to
moisture regaining after doffing, pretreatment is conducted at a certain temperature and time, on the basis that a refining emulsifier and
hydrogen peroxide are added, an
oxygen bleaching agent is added into a pretreatment solution, oil and
dirt in the
spinning, weaving and other processes are directly removed, the permeability of the fabric and the adsorption capacity of the fabric to dye are improved, and the fabric has a good
dyeing effect. The uniformity and color fastness of subsequent dyeing are improved, and the fabric is bright and pure in color and good in stability, has good coloring and leveling properties on the bright color, and is excellent in dyeing effect; after first acid adjustment, dyeing is carried out in a neutral dye bath by directly using dye liquor containing
disperse dye and
reactive dye at a certain temperature and for a certain time, the
disperse dye does not need to be microencapsulated, the operation is simple and convenient, only clear water is needed for cleaning after dyeing, the dyeing time is shortened, the cleaning process is simplified, the
water saving rate is high, and the purposes of saving energy and reducing consumption are achieved.