How to clean the dried blood on the sheets?

1. Old blood stains on sheets can be washed off with lemon juice and salt water. After the blood stains are removed, rinse them with clear water.

2. It can be washed off with concentrated oxalic acid. Oxalic acid can turn iron in blood stains into colorless substances and dissolve them in water. Because the blood contains protein, protein is not easy to dissolve when heated, so it is not allowed to remove blood stains with hot water.

3. Use radish juice, daub radish juice or radish mud on blood stains, then wash with soap or laundry detergent, and finally wash with water.

4, stained with blood, should immediately put in cold water, soap. Because when blood is not coagulated, the iron in heme exists in the form of ferrous iron, which can be dissolved in water. After a long time, the ferrous iron in heme was oxidized to ferric iron, which solidified with protein, and it was difficult to wash off blood spots on the fabric.

5, a long time, stubborn blood stains, the general washing method can not be removed. It is recommended that you use professional washing products to remove old blood stains.

Extended information: Other methods of blood cleaning:

1, fresh blood:

Fresh blood stains on any fabric can be washed away with water. Wash with clean cold water, and then wash with soap or washing powder.

2. Old blood on clothes:

You can wash it with lemon juice and salt water. After the blood stains are removed, rinse them with clear water.

3, clothes stained with blood, first scrub with ginger, then wash with cold water, leaving no trace. ?

Dropping a few drops of hydrogen peroxide or washing with white radish juice can quickly remove blood stains. Old blood stains can be wiped clean with sulfur soap. Protein is contained in blood, but protein is not easy to dissolve when heated. Therefore, hot water should not be used to remove blood stains.

4, quietly elegant dyed silk wool clothes blood:

Starch can be boiled with water to make a paste, and then the paste is coated on blood stains and dried. When it is completely dry, scrape off the starch, first wash it with soap, then rinse it with clear water, and finally wash it with vinegar mixed with vinegar 15g and water 1l, and the effect is quite good.

5. Blood on white clothes:

The fabric can be soaked in 3% vinegar solution, left for 12 hours, and then rinsed with water, and the effect is good. When the hungry blood stains on white clothes are old and firmly attached to the clothes, they can be removed by "Fading Spirit". You can also soak it in 5% baking soda solution, soak it overnight, take it out, and then soak the blood stains in bleaching powder solution (bleaching powder 1 part, water1part), and rinse it carefully with water.

References:

Baidu encyclopedia-blood stains