So how does this Pad Printing process work?

There are 4 key elements to the pad printing process. The pad printing machine, the ink, silicone printing pad and the cliche plate. Each component contributes in their own way to successful pad printing.

The printing pad picks ink from the cliche plate and deposits it on the substrate. What makes this process unique is that the printing pad can apply the image perfectly to a multitude of oddly shaped parts.

Step 1

The inking mechanism moves to the front of the machine, bringing the ink with it. Once over the etch the ink is deposited. This image show a closed ink system, the alternative being an open ink system. 

Step 2

After remaining in the front position for about a second the ink pot travels back, exposing the newly deposited ink in the etch. Immediately the ink begins to transform from a wet substance to a semi-plastic state. This occurs through solvent evaporation, making the ink sticky. 

 

Step 3

Next the soft silicone printing pad travels down to the exposed cliche plate etch. The tacky ink stick to the pad. 

Step 4

The printing pad now return to its original position. Continued ink transformation takes place with the underside of the image, once picked from the etch, now becoming tacky. 

Step 5

The pad containing the image now travels towards the substrate (part to be printed). During this entire time the solvent is evaporating from the ink. It is important to deliver the image before it dries. In this instance it will lose its tackiness and as a result will not stick to the part.

  

Step 6

The pad now travels to the part, in an attempt to deposit the ink. It does this with the help of the inks tackiness, pressure and the pads unique ability to conform to the parts shape. 

Step 7

The pad now returns from the part, leaving the image behind. This entire process can be completed in less than 3 seconds.