Transfer printing is one of the special printing methods. It can print text, graphics, and images on the surface of irregular objects, and is now becoming an important type of special printing. For example, the text and patterns on the surface of mobile phones are printed using this method, and many electronic products such as computer keyboards, instruments, and meters are printed using transfer printing.

The transfer printing process is very simple, using steel (or copper, thermoplastic) intaglio plates and a curved transfer printing head made of silicone rubber material. The ink on the intaglio plate is dipped into the surface of the transfer printing head, and then the desired object surface is pressed to print text, patterns, etc.

Many printing faults often occur in pad printing. This article summarizes and summarizes the common faults in pad printing technology, and organizes them into a comprehensive list of pad printing faults.