When printing multiple vertical business cards on a straight fold, the corners of the page (near the intersection of the lines) are prone to wrinkling. To avoid such phenomena, corresponding preventive measures must be taken. Next, the editor will introduce common reasons and solutions to everyone.
1. The unreasonable folding order causes the folding pressure of the folding machine to be too high, resulting in wrinkling of the paper at the corners.
2. The folding process is unreasonable. Causing air to be trapped inside the book sticker and unable to be discharged smoothly, thereby affecting the folding effect. For example, first folding the page twice in parallel, then vertically folding the business card printing direction twice in parallel, this solution can easily cause air retention inside the book sticker. But if the first two parallel folds are changed to fan-shaped folds, we can get rid of the dilemma.
3. The speed of the hybrid folding machine is too high, which increases the pressure on the paper during the folding process. Generally speaking. Both heavier and lighter papers require a lower folding speed
4. Changing the paper type can sometimes yield better results. For example, recycled paper has short fibers and low strength. The possibility of wrinkling at the corners is higher, so it is better to replace it with paper with a higher quality grade. It can greatly improve.