The wrinkle of facial paper seriously affects the printing quality of the post-process. In severe cases, it will cause mass scrap and lead to large production losses. This article specifically analyzes how to solve the wrinkling problem of facial paper from two aspects: tension and base paper.
There are many defects in the process of corrugated cardboard. One is the wrinkling of facial paper. The specific manifestation is that the facial paper is uneven and wrinkled. The wrinkle of facial paper seriously affects the printing quality of the post-process. In severe cases, it will cause mass scrap and lead to large production losses. Let's analyze how to solve the wrinkling problem of facial tissue.
1. Tension: adjust the tension of the original paper frame brake, balance roller and preheating cylinder
Tension correction machine
Balance roller
When the balance roller or the original paper holder and the preheating dryer of the paste machine are not adjusted correctly, the facial paper will wrinkle. The brake of the original paper holder is tight and loose at the same time. When the original paper passes through the balance roller, the unevenness will appear. If the balance roller is not adjusted, the next step is to enter the preheating cylinder. After the preheating cylinder is heated, the facial paper will wrinkle. Therefore, it is necessary to pay attention to the production process. When you see unevenness in the facial paper, you need to adjust the tension of the original paper holder brake, balance roller and preheating cylinder to ensure that the facial paper enters the duplex machine smoothly.
Second, the original paper
1. Corrugated wrinkle: solve the corrugated wrinkle phenomenon through the tension control system of corrugated paper
During the production process, corrugated folds can also cause facial paper folds. The wrinkle and corrugation of the tile paper will produce unevenness, which will cause the wrinkle phenomenon of the facial paper during the bonding process. At this time, the corrugated wrinkle phenomenon can be solved by the tension control system of corrugated paper.
Spray device
2. Uneven moisture of facial paper: use spray device to meet the production requirements of cardboard flatness
When the moisture of the tissue is uneven, wrinkles will also appear. The moisture of the facial paper is too large. When laminating, the uneven moisture of the single tile and the facial paper will cause the facial paper to shrink and cause wrinkles. Moisture control can be achieved by adjusting the coating angle of the preheating cylinder, or a spray device can be used to meet the production requirements of our cardboard flatness.
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