1. Knead the laundry detergent and rice into a paste, pre-coat it on the surface of the stain, and gently rub it repeatedly to rinse off the washed stain;
2. Wash regularly with laundry detergent.
Note: It is difficult to completely remove ink stains in calligraphy. Repeating the above operations can reduce stains.
If it is pen ink, you can try the following methods:
1. Apply the stock solution of laundry detergent to the stain to completely cover the stain. After standing for 5 minutes (gently rubbing), add laundry detergent for routine washing;
2. If the above methods can't remove the stain, put the schoolbag in the basin and stick the stain on the bottom of the basin. Bleach the bottle cap with the color of blue moon, measure the bleaching amount of 1/4 bottle cap (10g) and half bottle cap (20g), pour it on the stain, let it stand for 2 hours, and rinse it off. If there are still stains after 2 hours, you can add appropriate amount of water to wet the whole dress and leave it overnight.
If you encounter any problems during handling, you can call Blue Moon 24-hour service hotline 400-11-118 for consultation at any time, or visit www.xiyizaixian.com and /c/bluemoononline for consultation.