How to remove blue ink marks from clothes?

Removal of blue ink stains The newly polluted blue ink stains can be scrubbed and removed with detergents such as soap and washing powder. 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. Old stains can be washed with detergent first, and then rubbed off with 10% alcohol solution. After diluted with 84 disinfectant, try to soak it a little, but be sure to master the dilution ratio and soaking time, which is related to the placement and dyeing degree of dyed clothes. It is best to bleach it several times to save too much trouble. 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. The following options are available: 1. New ink stains or clothes that have not been stained for a long time can be easily removed by soaking in hot milk or yogurt. 2. Generally, ink stains on clothes can be made into mixed solution with 1 part oxalic acid and1part water, heated, dipped with cotton balls in the hot state and carefully scrubbed. As soon as the ink mark disappears, rinse it off with a little warm ammonia solution. 3. Ink spots on wool and cotton clothes can be removed with 10% citric acid solution. 4. The formula of the ink spot remover (1) can also remove ink spots after mixing 96% alcohol, 10% ammonia water and water according to1:1. Ammonia will change the color of the fabric, so it is necessary to control the amount to avoid discoloration. (2) Any one of insurance powder, bleaching powder or hydrogen peroxide can effectively remove the ink stains on white clothes. (3) Ink stains on white clothes can also be wetted with tap water first, then washed with lukewarm mixed solution of 3% hydrogen peroxide and 10% oxalic acid, and then washed with clean water. (4) For the blue-black ink stains on clothes, citric acid 1, distilled water 10 and concentrated borax solution 2 can be used as a remover. During preparation, citric acid is first dissolved in distilled water, then concentrated borax solution is added and mixed evenly. Dip this medicine with a brush and apply it to the blue-black ink spots on clothes, then use absorbent paper to absorb the excess solution, and then rinse with tap water after removing the ink spots.