How many minutes can you wash your hair after dyeing it

Dye hair for 20 to 30 minutes can be shampooed, specific time should adjust according to the dyeing situation and small range. Hair dye contains a certain chemical composition, the effect on the hair in a short time can achieve the color effect, in the process of hair color to carefully observe the color of the hair, if the color is easy, about 15 minutes can wash your hair. Paying attention to hair dye for a long time on the hair will bring damage to the hair quality, if it is not easy to color can be appropriately extended for a few minutes, once the dye needs to wash off immediately.