Factors Affecting The Printing Of Packaging Boxes
In the printing industry, many enterprises in the printing process, the printing quality of products will always appear different quality problems. So what are the factors that affect box printing? Below small make up to introduce you.
1, printing plate wear
Plate wear will make the dot smaller, shallower, thus affecting the dot ink load. The result of plate wear is that the overall color becomes lighter. Sometimes the white plate wear on the amount of ink on the white ink, the substrate background color of the covering power is insufficient, at this time should stop production for a new version, the old version of the new plating. If the plate cylinder using a transitional screen wall collapse can not be deplated, should be made again.
2. Printing environment
Printing room temperature if there is a large change, the flow of ink will change. General production workshop temperature, temperature control in the temperature (23 5) degrees Celsius, humidity 60% 5%. In addition, in the winter when using ink, to preheat ahead of time, in order to increase the flow of ink.
3. Inconsistent patterns and colors
Horizontal layout of a number of patterns at the same time, the printing plate may occur on both sides of the pattern color inconsistency. In the process of plate making, especially full field, electric engraving from left to right is easy to produce changes in dot size, therefore, should pay attention to check the printing effect of the left and right ends of the plate cylinder.