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Hot Foil Stamping for Rigid Boxes

Foil stamping is the cheapest way to make a box look expensive. A heated die presses a thin metallic film into the board, and the result is a mirror surface that sits in the board rather than on top of it.

What the process actually does

A brass or magnesium die is engraved with the artwork, mounted on a heated plate and pressed into the sheet with controlled temperature, pressure and dwell. The foil carrier releases its metallic layer onto the board where the die contacts it. Nothing is printed — the shine comes from the foil, which is why it holds up where metallic ink dulls.

When it is worth it

Foil earns its cost on small areas the hand goes to first: the logo on a lid, a spine, a frame around a window, a single line of type. Large solid foil areas are possible but expensive and prone to pinholes, so we steer artwork toward fine detail rather than big blocks.

It also works as texture rather than colour. Blind emboss — the same die without foil — gives a raised impression on unprinted board, which reads as craft on kraft and dark wraps.

Foil types

Gold, silver, copper and holographic are the standard stocks; matte and brushed versions exist for brands that want metal without gloss. Coloured foils are available but the palette is narrower than ink, and some colours shift under different light.

Design constraints worth knowing

Minimum line weight and minimum type size depend on the die and the board, not on the artwork. Fine serif type below a certain size fills in. We check the artwork against the actual die before production rather than after.

Foil does not register perfectly with print. Where foil sits next to a printed edge we plan a small trap, so misalignment does not show as a white line.

What we need to quote

Artwork as vector, the area to be foiled, foil colour, board and wrap, quantity, and whether a die already exists. If the die exists we ask for its dimensions; if not, we quote the die as a one-off line.