If washi has a design seam, it is unfortunately unavoidable. When designers send their washi tape to manufacturers, the designs are sent in long segments. Depending on the color and intricacies of the artwork, the seams may be more noticeable in some designs than others. To combat this, washi tape designed by PaperyLove is made in longer segments so that the seams do not happen so frequently.
Designs are aligned perfectly when they are sent to the manufacturers, however they are not gauranteed to align perfectly when printed. It is impossible to detect which rolls have bad alignment without opening each and every roll.