The ink specially used for pad printing is different from the common solvent ink, water-based ink and UV curable screen printing ink. Although pad printing ink and screen printing ink have some similar characteristics, they are still very different. Different from screen printing ink, pad printing ink drying faster, which is also the most prominent characteristics of pad printing ink. At the same time, the pad printing ink is often printed on the film, which is easy to be affected by some factors such as temperature, humidity and static electricity. The ink specially prepared for pad printing includes single component ink, two-component ink, drying type, oxidation type, UV type and sublimation type ink, etc.
1. According to the classification of transmission mode, according to the different transmission mode of the main movement of the pad printing machine, it can be divided into three types: manual mechanical pad printing machine, electric pad printing machine and pneumatic pad printing machine.
Pneumatic pad printing machine is widely used at home and abroad because of its simple structure, convenient operation and stable movement.
2. According to the classification of printing color number, according to the different printing color number completed in a printing process, the pad printing machine can be divided into single color pad printing machine, double color pad printing machine and multi-color pad printing machine, etc
Multi color pad printing machine can be divided into shuttle type and conveyor belt type multi-color pad printing machine according to the different transmission mode between different colors.
3. According to the different ways of ink storage, it can be divided into oil basin type and oil cup type pad printing machine.
The oil basin type pad printing machine is a commonly used form. The oil cup type pad printing machine is relatively environmentally friendly and can ensure the good stability of the ink in the printing process.