First of all, folding is a link that needs to consider many factors. When folding, there are requirements for the thickness, folding angle and position of the paper. If the paper is too thick, it will be damaged and ink will drop after folding. If the paper is too thin, it will crack or even break. Of course, three-fold printing can use processes such as laminating to prevent or delay the occurrence of damage.
Secondly, in the design process of the three-fold printing, the layout of the three-fold printing must be determined, and it cannot be printed in the form of promotional color pages. Otherwise, when printing three-fold pages, pictures and words will often be covered after folding, and the effect of three-fold printing will not be achieved.
In addition, three-fold printing should also ensure the folding effect. Generally speaking, three-fold printing has two different folding methods: manual folding and machine folding. However, manual folding is not the best choice because of its low efficiency and high cost. The folding efficiency of the machine is higher and the folding effect is more obvious. Therefore, when printing with three folds, mechanical folding is often used, which saves time and effort.