Is genuine gold used for hot stamping?

In the 20th century, gold and silver were indeed often used to make hot stamping. Because gold and silver are very stable metals and are not easily oxidized. By utilizing the ductility of these metals, they can be pressed into thin sheets and then pressed onto paper or other objects using hot stamping.

However, with the development of the times, the hot stamping process is also constantly improving. Due to the high prices of gold and silver, modern hot stamping processes no longer use gold foil, but instead use a material called "electroplated aluminum" to replace it. This material not only has low cost, but also has metallic luster properties, is not easily oxidized, and can present different colors by changing dyes.

Aluminum itself is a silver white metal. If you want it to have a cash yellow color, you only need to apply a layer of gold dye. For other colors, different dyes can be used. This flexibility and customizability have led to the rapid development and widespread application of electroplated aluminum in various hot stamping processes.

The academic name for hot stamping is heat transfer printing, abbreviated as heat transfer printing/hot stamping, usually represented by hot stamping. The printing process is to use pressure and temperature to cause changes in the electroplated aluminum foil, which is then hot stamped onto paper.

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