Lithography was the first real innovation in printing after the invention of relief printing in the fifteenth century.
Lithography was the first real innovation in
printing after the invention of relief printing in the fifteenth
century. It was first invented in Bohemia by Alois Senefelder in 1798.
The name lithography comes from the Greek word for stone (lithos)
because originally a smooth piece of limestone was used in the process.
An oil based image was placed on the surface, and then burned on with
acid. After this, gum Arabic (which is water soluble) was used to seal
the non oily portions of the plate. During the printing process the oil
based ink would adhere to only the oil based portions of the plate,
while the water would adhere to the gum Arabic.
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