2023-07-05
Cleaning preparation: toothpaste, laundry detergent, water, a basin of water.
Step 1: Put the Three Layer Pencil Case stained with handwriting (including ballpoint pen, water pen) into the basin.
Step 2: Then pour an appropriate amount of laundry detergent into the basin (the laundry liquid can decompose the oil stains in the handwriting of the ballpoint pen and the water pen; and the laundry liquid has a cleaning effect).
Step 3: Then squeeze an appropriate amount of toothpaste into the basin (the toothpaste contains a cleaning agent that can clean the handwriting on the Three Layer Pencil Case).
Step 4: Then rub the handwriting (including ballpoint pen and water pen) on the pencil case with your hands.
Step 5: Then rinse the pencil case with clean water.
Step 6: The handwriting on the pen bag (including ballpoint pens, water pens) has been cleaned.