Solution to Working Problems of Waterbase Printing Slotting Carton Machine

Solution to Working Problems of Waterbase Printing Slotting Carton Machine

The corrugated cardboard production line just merged several backward processes into the corrugated cardboard production line process, basically realizing the continuous production after the merger, and improving the quality of the cardboard. The production of the first process of the corrugated cardboard production line is basically mechanized, but the latter process is still divided into several processes, such as printing, slotting, slitting, stitching and packaging.

Pay attention to adjusting the gap and position of the paper feeding roller and the traction roller at the front and rear of each printing machine, especially when the width of the cardboard is too narrow. In case of partial chromaticity, two traction belts shall be added at the edge of each printing plate to ensure smooth transition of paperboard during printing; In addition, due to the different warping degree of corrugated cardboard, the cardboard should be replaced and leveled at the same time.

Print ghosting and white leakage. These are two problems that often occur in the production process. The double shadow around the printed pattern or text is caused by the excessive pressure between the anilox roller and the printing plate; The double image on the front edge of the print is caused by the excessive pressure between the printing cylinder and the imprinting roller; Large area printing penetration and white leakage are caused by insufficient pressure between the printing roller and the embossing roller. To solve the printing ghosting problem, the gap and pressure between the anilox roller and the plate roller should be adjusted.

Multi color printing is not allowed. This is also a common problem in the printing industry. It is composed of many factors. The position and accuracy of the plate roller of the multicolor printing slotting machine itself, the adjustment of the paper feeding roller and the traction roller, the use of the traction belt, the accuracy of the plate arrangement and the warpage of the paperboard will have a direct impact on the overprint effect. To solve the problem of inaccurate overprint in multi-color printing, first of all, the pressure on the roller of each color should be slightly higher than the previous one, so that the pressure applied on all colors is equal. Ghosting occurs when the anilox roll extrudes the printing plate (flexographic plate) due to excessive upward pressure. Therefore, the gap between the two rolls should be increased to reduce the pressure accordingly; To solve the problem of printing leakage, adjust the gap and pressure between the plate roller and the impression roller.

As the gap between the plate roller and the embossing roller is too large, it will be inaccurate in case of large area printing, which requires increasing the downforce. In addition, the unevenness of the printing plate, the quality of the plate lining and the hardness of the printing plate will affect the above problems, so local adjustment should be made. Although the water-based printing slotting machine solves the problems of printing, slotting, slitting, die-cutting, and nailing boxes, packaging still needs to be separated. At present, the one-stop production process of the next process has not been successful in China, and the equipment is basically dependent. Therefore, the next process of water-based printing slotting machine is to be developed in the future, and the development trend is the one-stop production process of printing, die-cutting, gluing and binding to achieve automatic and continuous production. www.chinacartonmachine.com