Lotrek wrote:Foiling while simple as a concept, has many difficulties due to its nature. The basic idea is that you have a metal plate on which the parts to be printed (stamped) are raised. This plate is heated and the foil passes between the plate and the paper which is pressed towards the plate and foil.
This is the general idea. The quality and depth of detail is primarily a matter of plate. Quality of foil is also very important although not always related to the price. I have seen expensive foils having poor results and cheap foils being great (and vice versa, of course).
Here's a video showing the process on a manually operated machine. I'm using a big automatic sheet fed machine but this video explains how it works which is basically the same.
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