Method for improving wearability of nylon spandex printed fabric

The invention relates to a method for improving wearability of a nylon spandex printed fabric. The method comprises the following steps of 1) providing a piece of aged and unwashed printed cloth; (2) continuously washing by using a 0.5-1.5 g/L cleaning and color fixation agent DM-2532N at the bath ratio of 1: (15-20), avoiding adjusting the pH value of a working solution, washing at room temperature for 2 minutes for the first time, washing at room temperature for 2 minutes for the second time, washing at 40-45 DEG C for 3 minutes for the third time, washing at 40-45 DEG C for 3 minutes for the fourth time, discharging liquid after each time of washing, washing with cold water, and dehydrating and drying for color fixation; 3) color fixation: adopting X% of the cleaning and color fixation agent DM-2532N, wherein the bath ratio is 1: (8-15), the pH of the working solution is not required to be adjusted, color fixation is carried out for 35-45 min at the temperature of 60-65 DEG C, and after washing with cold w