What should I pay attention to during the operation of the pad printing machine?

Pad printing machine is a kind of printing equipment, suitable for plastics, toys, glass, metal, ceramics, electronics, IC seals, etc. Pad printing is an indirect concave head printing technology, which has become a major method for printing and decorating the surface of various objects.

Ways to apply ink to etching plates (steel plates): There are many ways to apply ink to etching plates.

The ink is first sprayed onto the etching plate, and then the excess ink is scraped off with a retractable squeegee. At this point, the solvent left in the ink in the etched area evaporates and forms a gelatinous surface, and then the glue head descends onto the etching plate and absorbs the ink.

Ink absorption and printing products: the glue head absorbs the ink of a large part of the etching plate and rises, at this time, this layer of ink volatilizes a part, and the remaining part of the ink surface is not dry, which is more conducive to the close combination of the printed object and the glue head. The shape of the glue head should be able to produce a rolling motion to remove excess air from the etching plate and ink surface.

In the production process, the ideal situation of the ink and glue head is that all the ink on the etching plate is transferred to the printed object, and in the production process (close to 10 microns or 0.01 mm thick ink adheres to the substrate and is transferred to the substrate), the glue head printing is easily affected by air, temperature, static electricity, etc. If the evaporation rate and dissolution rate are controlled in equilibrium throughout the entire process from etching plate to transfer head to substrate, then successful printing is achieved. If it evaporates too quickly, the ink will dry up before it is absorbed. If the evaporation is too slow, the surface of the ink has not yet formed a gelatinous shape, and it is not easy for the glue head to adhere to the matrix.