If we want to restore the red pants, we can prepare an appropriate amount of potassium permanganate solution, then soak the pants in the potassium permanganate solution for about 10 to 20 minutes, then take out the pants, wash them, and then soak them in acetic acid for a period of time, so that the color of the black pants will recover. How to restore the red black pants? If our black pants show signs of redness, it may be that the dyeing fastness of the pants is not enough, so that the redness occurs due to fading and discoloration. Then how should we restore the color of the pants?
First, we can prepare an appropriate amount of potassium permanganate, then pour it into water to make potassium permanganate solution, and then soak our pants in this potassium permanganate solution for about 10 to 20 minutes.
After the pants are soaked, we need to take them out of the potassium permanganate solution and wash them with clean water, then prepare an appropriate amount of acetic acid and soak the cleaned pants in acetic acid for a period of time.