The specific cleaning steps are as follows:
Materials to be prepared include: toothpaste, water and towels.
1. First of all, put the clothes stained with blue ink with the stain facing up.
2. Apply a proper amount of toothpaste to the area with blue ink.
3. After spreading evenly, let it stand for 3-5 minutes.
4. Then dip the towel in the right amount of water.
5. Wipe the clothes clean.
6. Blue ink can be removed from clothes.