What are the technical points of reactive printing that need to be paid attention to?

1. Selection of dyes: a. Reactivity: medium; b. Directness: medium to low. In addition, the fixation rate of the dye itself must be considered: if the fixation rate is too low, the amount of the dye will be large, which is not conducive to post-washing. Generally speaking, domestic m-type and foreign p-type should be selected according to the specific color.

2. Steaming requirements: under saturated steam, 102 degrees x 8 minutes is enough. According to the current customer's quality requirements, it seems that using the baking method is not the best choice.

3. The process of post-washing: a. The post-washing must ensure that the first three water tanks are at least cold washed, and rinsed strongly and drained at the bottom; b. If the number of washing tanks is small, you can extend the cold washing time by adding a ventilation rack. c. When soaping, be sure to choose non-alkaline auxiliaries, the best choice is a chelating dispersant (such as CY-316D).