| What's
the Difference Between Engraving and Thermography?
 ngraving
and thermography are actually quite different from one another but
these two printing methods are frequently confused. The printing
results can be somewhat similar and can commonly be found on wedding
invitations, business cards and the occasional letterhead.
Engraving is a kind of gravure
printing wherein paper is pushed against a recessed plate. In engraving,
the paper is usually slightly moist. The pressure of another cylinder
forces the ink from the recessed area onto the paper. The pressure
of the press raises the imprinted area slightly which gives the
piece what we recognized as an engraved appearance.
Thermography, also known as the "poor man's
engraving" method, is somewhat similar to engraving in result
but not process. It's cheaper and easier to produce than traditional
engraving which may account in part for it's popularity. Thermography
is created by adding a powder to the ink being printed on a paper's
surface. The printed piece is then passed under heat and literally
cooked together. When heated (it's thermography after all),
the ink and powder blend and rise to give a raised effect. Frequently
thermography appears even more engraved than some engraved printing.
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