1, removing dye stains

Dyes on clothes can be wiped with dilute acetic acid and then rinsed with hydrogen peroxide. You can also brush it with turpentine and then wipe it with gasoline. Finally, they should be rinsed with clean water.

2, the removal of red ink stains

The newly dyed red ink stains can be washed with water first, then soaked in warm soapy water, and then washed beautifully with clear water after the color stains are removed. Red ink stains that have been polluted for a long time should be washed with water first, and then wiped off with 10% alcohol aqueous solution.

3. Removal of blue ink stains

The newly polluted blue ink stains can be scrubbed off with soap, washing powder and other detergents. Blue ink stains that have been polluted for a long time can be soaked in oxalic acid solution and rubbed, and then washed with detergent to remove them.

4, the removal of red drug water stains

The clothes stained with mercuric chloride are washed with warm detergent solution, then soaked and rubbed with oxalic acid and potassium permanganate solution in turn, and finally decolored with oxalic acid solution, and then washed with water, so that the water stain of mercuric chloride is removed.

5, purple drug stains removal

The main component of purple liquid medicine is extracted from gentian, so purple liquid medicine is also called gentian purple, which is a commonly used external medicine. It is blue-purple when stained on clothes, which is very conspicuous.

The removal method is: soak the clothes in water, wring them out slightly, dip a cotton swab in 20% oxalic acid aqueous solution, and smear the stains from the inside out. After a little quiet for a period of time, you can repeatedly wash the friction with clear water and the stains can be removed. In addition, for some white fabrics polluted by purple liquid medicine, the floating color can be removed by solvent alcohol first, then bleached by oxidant sodium hypochlorite or hydrogen peroxide solution, and the expected effect can be achieved after washing.

6, xanthate water stains removal

Light-colored clothes, especially white clothes, are sprinkled with yellow medicine. Removing xanthate water stains is more troublesome. First, drop acetic acid on the polluted place. If the effect is not great, you can wash it with alcohol.

If it can't be completely removed, it is necessary to choose a suitable oxidant to remove stains or bleach according to the fiber properties of clothing materials.

Step 7 remove iodine stains

Clothes contaminated with iodine can be removed with alcohol or potassium iodide. Add 5~7 grams of potassium iodide to 100 ml of water, and the clothes stained with potassium iodide solution must be washed with clean water. You can also soak the clothes stained with iodine in hot water or hot solution of 15%~20% sodium thiosulfate for 2 hours to completely dissolve the stains and separate them from the clothes. You can also mix the stains with water starch slurry. When the stain is black, wash it with detergent and finally rinse it off.

8. Remove ointment stains

Brush with solvent gasoline or alcohol first, then brush with carbon tetrachloride or benzene, and finally clean with high-quality detergent.

You can also scrub with potassium trichloroalkane first, then wash with detergent, and finally rinse with clean water. You can also sprinkle the heated noodles in a dirty place, add some warm water and knead them, and you can remove them.