1. Clothes that have just been stained with blood should be washed in cold water immediately. Because the iron in the heme exists in the form of ferrous iron when the blood is not coagulated, it is soluble in water. After a long time, the ferrous iron in the heme is oxidized to ferric iron and coagulates with the protein, and it is difficult to wash off the blood stains formed on the fabric. Therefore, immediately after the blood stains, it should be washed with cold water (hot water is prohibited because the blood contains protein, it will coagulate when heated, and it is not easy to dissolve), and then wash it with soap or 10% potassium iodide solution to remove it.
2. Use white radish juice or mashed carrots with salt to remove blood stains on clothes.
3. Washing old blood stains can also be soaked in cold water for a long time. After milling, wipe the stained area with 10% tartaric acid solution or wipe the stained area with 10% ammonia water. Finally, rinse with clean water.
4. Use enzyme-added washing powder to remove blood stains, the effect is very good.
5. If the stain takes a long time, you can use 10% ammonia water or 3% hydrogen peroxide to wipe the stained area. After a while, wash it with cold water. If it is still not clean, wash it with 10-15% oxalic acid solution, and finally rinse it with clean water.
6. Whether it is a new trace or an old trace, it can be cleaned by rubbing with sulfur soap.
7. Apply hand oil to the blood stain, leave it for about 15 minutes, and then wash it with soap and water.
8. Wipe the stain with hydrogen peroxide first, then rinse with alcohol or water.
9. Apply moisturizing cream to the blood-stained part (do not wet the clothes, apply moisturizing cream directly), wash it after some time, and then use washing spirit or soap to remove the moisturizing lotion, the effect is very good.