Our factory has a J2205 bi-color bi-color offset printing press that has used for many years and has caused faults in overprint and inaccurate transfer of printed sheets in one offset printing process. After inspection and analysis, it is confirmed that it is the …

How to install the printing press scientifically and reasonably and be familiar with the trial operation of the machine is an important part of improving the machine performance and service life.
First, a number of factors that should be taken into account wh…

There are two types of corrugated box type tests. Stacking test and vertical impact drop test.

According to the test rules, a type test is required when the following conditions occur:

1 Changes in raw materials, design structures and processing…

3. Influence of printing pressure and process conditions on dot gain In general, the greater the printing pressure, the more serious dot gains will be. Offset press produces certain deformation of the blanket, which can also cause dot gain. Any problem on the same…