Soak the garment in warm water with a few tablespoons of ammonia. Leave for 2-3 hours. Then rinse in plenty of water and wash as usual.
If the shirt is very dirty, prepare the following solution. In bowl pour hot water, add 2 tablespoons of ammonia, 3 tablespoons of hydrogen peroxide, a handful of washing powder and 5 tablespoons of salt. All Stir and soak the shirt in the resulting solution for 1 hour.
Hydrogen peroxide has bleaching properties. In a few liters of water dissolve 3 tablespoons of peroxide and a teaspoon of soda ash. Soak the shirt in the resulting solution for 30-40 minutes. After this time, rinse and wash in warm soapy water.
In a large bucket, pour hot water, add 100 g of detergent and a small amount of potassium permanganate so as to obtain a pale pink solution. Soak the pre-wash a shirt and cover with cling film or a bucket lid. When the liquid has cooled, remove the product and rinse in plenty of water.
In addition, you can whiten your shirt old folk method - boiling. In a large pot or bucket, pour water, dissolve a handful of washing powder for hand washing and immerse shirt. Place a container on fire and bring to a boil. After a 30 to 40 minutes, remove the clothing and rinse under running water. It is important to consider one thing that frequent boiling lead to rapid deterioration of the fabric.