How to clean the white sheets in hotels to keep them bright and white?

method 1: after bleaching powder is soaked, wash it with 84 laundry detergent and washing powder.

Method 2: Potassium permanganate and acetic acid. The method is to dissolve a little potassium permanganate in water first, then put the sheets to be rinsed in, and fully soak them. After soaking for 1 to 2 minutes, the sheets will be dark red. Pick up the sheets and wash them with clear water. Then a little acetic acid is dissolved in water, and the sheets soaked with potassium permanganate are put into the acetic acid solution, and the sheets will slowly change from dark red to the original color, and the dyed places will fade away without damaging the original color of the sheets.