If the nylon tulle has acquired a yellowish or grayish tint, do not rush to the store for new curtains.
Instead, head to the drugstore - yes, that's where they sell a product that will do a better job of washing tulle than bleach.
To enjoy light and snow-white curtains, you will need to stock up on hydrogen peroxide.
When you get home, fill a basin with 5 liters of hot water. Add 2 tablespoons of 3% hydrogen peroxide.
In addition, you will need the same amount of ammonia.
Throw the canvases removed from the cornices into a basin and cover it with cling film on top - this way, firstly, you can enhance the effect of bleaching, and secondly, you will protect yourself from the pungent smell.
Soaking takes an average of 1.5-2 hours. After this time, you will be able to see how the tulle has become lighter by several tones.
All that remains is to load the curtains into the washing machine and add bleaching detergent. Choose a delicate cycle and use an extra rinse to get rid of the smell of ammonia for sure.