You will need
- - 3% hydrogen peroxide;
- - baking soda;
- - ammonia;
- - Mel;
- - Laundry soap;
- - vinegar;
White woolen thing that had changed color for a few hours soak in a solution of cold water and hydrogen peroxide in a ratio of 8:1. Instead of hydrogen peroxide you can use regular baking soda. Then rinse well and wash according to the instructions on the label. If you need a stronger effect, use complicated recipe.
Wash in warm soapy water, a wool yarn or product. Rinse, adding water 20 grams of baking soda to 6-7 liters of water (instead of soda, you can use ammonia). Then dip the thing in a solution of 5 g of hydrogen peroxide (3%) and 1 g of ammonia per liter of water. After half an hour rinse in clear cold water, then add to the bowl for rinsing a tablespoon of vinegar.
Use crushed chalk. 400-500 g of wool, take about 1kg of crushed chalk, stir in three liters of cool water. Put in a solution of thing from time to time stir the water. In the end, rinse the wool in cold water, preferably several times.
If you find white wool in Hanks, had time to turn yellow, and decided to tie it into something, first try to bleach it. Boil the skeins in a solution of soap, rinse well in warm water and then in cold with vinegar.
Try to soak the wool in water with salt before washing. Few times thing likely to noticeably brighten. Optional industrial use delicate detergent and bleaching of woolen clothes. Make sure that they did not have chlorine. Any tool it is best to first try on the spare piece that is often attached to clothing.
Remember that natural fibers (except cotton) are almost perfectly white, they are usually closer to a creamy or milky color. Therefore, there is a limit beyond which you will not be able to lighten woolen thing.
Dry woolen items on the table in expanded form, on a rope or a hanger they can lose shape.