Pad printing is one of the special printing methods. It can print text, graphics and images on the surface of irregular heterogeneous objects, and is now becoming an important special printing. For example, the text and patterns on the surface of mobile phones are printed in this way, and the surface printing of many electronic products such as computer keyboards, instruments, and meters are all completed by pad printing.

The pad printing process is very simple. It uses a steel (or copper, thermoplastic plastic) gravure and a curved pad printing head made of silicone rubber material. The ink on the gravure is dipped onto the surface of the pad printing head, and then pressed against the required object surface to print text, patterns, etc.

There are often many printing failures in pad printing. This article summarizes the common failures in the pad printing process and organizes them into a more comprehensive pad printing failure encyclopedia.