Differentiating pad printing and screen printing inks

In terms of substrate suitability, screen printing has great advantages, especially in the amorphous plastic hardware electronics and direct consumer operation industries. Screen printing has been widely praised. It can be said that although there are great differences between pad printing technology and screen printing, the industries involved are very similar.

The main difference between the inks used in different processes is that the additives contained in the inks are different. Next, screen inks and pad printing inks will mainly be discussed. In the area of ​​industrial printing on the surface of small areas and irregular substrates, screen printing has encountered real troubles, and this trouble has led to the birth of pad printing technology. The Japanese have solved this problem from another angle. They installed a plastic head cleaning device on a pad printing machine. However, the additional plastic head cleaning device mainly controls the amount of ink transferred, and the transfer efficiency does not improve.

However, there is no universal printing method in the world, and screen printing is no exception.

The ink transfer process is closely linked with the nature of the print head. The surface tension of the print head is controlled within a similar range to that of the print ink. This appears to be a systematic project. The essential purpose is to improve the ink transfer efficiency.

Different processes have different requirements for inks, and it is necessary to add appropriate supplements to the inks to make them easier to use in detailed situations. For example, offset inks are more viscous and have better water resistance; gravure inks are relatively rare and active. Good; screen inks must have good permeability.