1, white yarn
You can use white gauze or cloth that can be wrapped with salt, wrap a small bag of salt and rub it gently. Slowly, you will find that the residual glue is slowly disappearing and sticking to the cloth. Just stop and wipe away the caked glue on the gauze.
2, nail polish
Soak in nail polish remover for a while, then wipe it with a paper towel, and the surface of the article will be as bright as new.
3. Medical alcohol
Soak medical alcohol in offset printing, drop some medical alcohol on the trace surface, soak for a while, and then wipe it off with a soft cloth or paper towel.
4. Pigment
If it is a painted or whitewashed wall, offset printing is too stubborn, you can try it with a paint remover.
5. Eraser
Wipe along the edge bit by bit to easily remove traces. However, the time may be different according to the degree of pasting. If conditions permit, alcohol+eraser works well.