If special treatment and pasting are not carried out at the bend, such folds will occur after bending. But in a way. This is indeed a detail that should be considered and handled. The distance above 750px can be ironed with a household hanging steam iron, but the steam should be dried with a dry towel immediately.

Daily maintenance can be lightly basked in the sun for about 20 minutes. When not in use, put the old newspaper in the bag and put it in the original non-woven bag. Remember to put it in a dry and insect-free place.