
Offset printing is a widely used printing
technique where the inked image is transferred
(or "offset") from a plate
first to a rubber blanket, then to the
printing surface. When used in combination
with the lithographic process, which
is based on the repulsion of oil and
water, the offset technique employs
a flat (planographic) image carrier
on which the image to be printed obtains
ink from ink rollers, while the non-printing
area attracts a film of water, keeping
the nonprinting areas ink-free.
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