Therefore, the simpler the printing of graphics and texts on corrugated boxes, the better, and avoid printing graphics and texts all over the entire box surface as much as possible, let alone printing full color.ģ.2 Avoid ribbon printing (same machine direction as corrugated board)ĭue to the lack of printing process knowledge, some decorating designers design carton printing patterns with some horizontal gradient lines. When the corrugated box is full or surrounded by graphics, in addition to the pressing effect of the embossing roller on the corrugated cardboard, the ink also has a wetting effect on the paper surface, which will reduce the compressive strength of the corrugated box. The coefficient increases, and the amount of base paper and adhesive also increases.ģ Problems that should be paid attention to in the printing of corrugated boxes The diameter of the corrugated roller after grinding is reduced by about 1.0mm. If 50,000 meters of corrugated cardboard is produced every day, it will be ground and repaired after about one year. The corrugating roller can normally produce about 20 million meters of corrugated cardboard. Do not wash the high temperature roller surface with water, otherwise it will deform the roller and accelerate the wear.Ģ.4 Regular maintenance. During production, spraying a small amount of oil mist or anti-friction agent on the surface of the corrugated roll will reduce the wear between the corrugated rolls, and also prevent the corrugated paper from breaking and foaming.Ģ.3 After use, remove the fitting pressure and clean the roller surface. If the scraper does not fit the roller groove, it should be adjusted or replaced.Ģ Maintenance and maintenance methods of corrugated rollersĢ.1 Before use, check the parallelism and tightness of the corrugated rollers, and adjust the matching pressure between the rollers.Ģ.2 Pay attention to adequate lubrication of the corrugated roller when using it. At this time, the temperature of the roller surface should be adjusted to make the paper dry before corrugating. This phenomenon occurs when the temperature of the roll surface is too high or the moisture content of the base paper is too high. Perhaps one of them is faulty and can be repaired or replaced.ġ.4 The corrugated paper sticks to the surface of the corrugated roller. The working conditions of the heating sources in the upper and lower rollers should be checked.
If the corrugated paper on the left is shorter than the right, the left side of the upper corrugating roller should be raised appropriately, otherwise the adjustment should be reversed.ġ.3 The corrugated paper is curled into a cylinder, the main reason is that the temperature difference between the upper and lower rollers is too large. This is due to the poor parallelism of the corrugating roll or uneven pressure at both ends.
The solution is to adjust the pressure or roll temperature, or reduce the speed of the car, to allow the paper to dry.ġ.2 The height of the corrugated paper is not uniform, and the two sides of the extruded corrugated paper are fan-shaped with different lengths. Today, the editor of China Paper Network will take you into the solution to the corrugated cardboard problem in detail, and provide you with a reference.ġ Common faults and troubleshooting methods in the corrugating processġ.1 The height of the corrugation is not enough, the reason may be that the pressure or temperature is too low, or the moisture content of the paper is too high. If it cannot be solved in time, the entire production process will be forced to stop, affecting the shipment of cardboard. In the production process of corrugated paper, some production problems are sometimes encountered.
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