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The hot stamping process uses the principle of hot pressing transfer to transfer the aluminum layer in the anodized aluminum to the surface of the substrate to form a special metal effect. Because the main material used for bronzing is anodized aluminum foil, so bronzing is also called anodized aluminum hot stamping. Anodized aluminum foil is usually composed of multi-layer materials, the substrate is often PE, followed by release coating, color coating, metal coating (aluminum plating) and glue coating.

Hot stamping is a general term for a process. Hot stamping in the printing industry is commonly used to hot stamp anodized aluminum foil on paper.

Hot stamping does not mean that the hot stamping is gold. There are many kinds of hot stamping paper materials, such as gold, silver, laser gold, laser silver, black, red, green and so on.