Reading by touch.

Invented in 1829, Braille Code relies on embossing to allow blind people to read and write.

Embossing starts with a metal relief die, a matching counter die and an embossing press. Paper is placed between the die and the counter, heat and pressure are applied, and the type or design is pressed into the stock. “Blind” embossing (or debossing) means that the embossed image appears by itself, without needing to be registered, or precisely positioned, against the edge of any printed color or foil coating.

More info:

Embossing »
The Process »

Ed #6 Embossing / Foil Stamping

 

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