How about yellowing towels?
The towel hardens mainly because the free calcium and magnesium ions combine with soap to produce calcium magnesium soaps, which are attached to the surface of the towels. In order to prevent the towel hard, in addition to regular cleaning, towel should be placed for a quarter of an hour in the water pot (generally 1.5 kilograms of water plus 30 grams of soda can, pay attention to all the towels immersed in alkaline water), boiled after towel remove and rinse thoroughly with water.
Towels are hard, mainly free calcium in water, magnesium ions and soap combination, adhesion on the towel caused by the accumulation of dirt for a long time is also a reason for hardening. To make it soft, you can add 30 grams of soda ash or moderate amount of soft soap in 1.5 kilograms of water for 10 minutes. After becoming greasy, towels can be soaked in brine before washing.
The surface of the towel is greasy and sticky. It is because of the large amount of sweat, tears and other secretions on the surface of the towel. Clean the surface of creamy towels, in addition to the above methods can be used, can also be cooking or washing towels in brine.