The traces of the ballpoint pen can be washed out in the following ways:
Immerse the clothes with ballpoint pens in warm water of 40 degrees for a while, then scrub them carefully with cotton balls dipped in benzene. After scrubbing, wash them with common detergents such as washing powder and laundry detergent, and rinse them according to the normal washing process.
2. Carbon tetrachloride or acetone.
Place the part with the ballpoint pen and handwriting in cold water, then gently wipe it with carbon tetrachloride or acetone. After scrubbing, follow the normal washing process, use common detergent, laundry detergent and other cleaning agents. .
3. Gasoline and alcohol.
When the stroke of the ballpoint pen is dark, first wipe it with a small amount of petrol, then brush with 95% alcohol, then gently rub the soap, and finally rinse with water. However, it should be noted that when using gasoline and alcohol, it is strictly forbidden to use boiling water.