One of the common problems in the printing of corrugated boxes

At present, there are four production methods for printing equipment using water-based ink in the corrugated box industry, and their characteristics are different.

The first is the chain type single-machine printing method. This method can only print, without slotting and die-cutting.

The second is the commonly used printing slotting and round press die cutting production methods, this method uses the ink on the printing, after slotting or die cutting, just glue (pin box) can be formed.

The third is the use of automatic printing slotting, folding and bonding (nail box) production methods, this machine is used for folding forming under the ink printing system, is a one-time molding machine.

The fourth is the current more advanced printing, circular die-cutting mode, which is characterized by multi-color printing, high precision equipment, printed products can achieve the effect of color printing, especially for color carton sales package. The above several production methods, the common features are the use of ink printing, printing principles and equipment structure is basically the same, but the number of printing color, the number of screen lines and different process equipment. The printing process is affected and constrained by many aspects and factors. Many problems cannot be solved simply by the operator. Only through all aspects of cooperation, to minimize and avoid some unnecessary problems in the production process.

This article analyzes common problems that are easy or frequent in ink-and-ink printing and takes the necessary measures accordingly.

1. The size of the slotting knife and vertical pressure line are not accurate, and the printing position is not accurate

Analysis of the reasons: Due to the sizing and pressure lines not being adjusted according to the requirements of the technical drawings, the length or width of the cardboard manufacturing dimensions is deviated, which ultimately affects the printing position.

Solution: First, adjust the size of the slotted or pressed wire according to the manufacturing dimensions of the drawing. The exact position is required. Then, adjust the position of the plate according to the exact size and check the deviation caused by the groove or the pressure roller due to wear.