Sublimation printing

Sublimation printing, also known as diffusion printing, is commonly used for keyboards and calculator keys and is characterized by the fact that the ink sublimates from the solid state into the gas state during the printing process, without going through the liquid state.

The ink pattern is first applied on a transfer film. This carrier is positioned over the part and is heated under pressure. The ink sublimes into the gas state and the vapors penetrate the surface of the part to a depth of up to 0.2 mm. The ink is sealed into the surface of the part as soon as the material cools down.

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