Diptych could be explained as a two plate design which are joined by an 'hing'. Hence, it is not a printmaking technique.
Printmaking techniques can be divided into 4 different families which are relief, intaglio, stencil and planographic.
- Drypoint is a print making technique which belongs to the intaglio family.
- Etching is also an intaglio printmaking technique.
- Engraving is also an intaglio printmaking technique which involves adding writing on a hard surface of metals, marbles e.t.c.
- Woodcut is a relief printing technique.
- Diptych involves an artistic display using two plates joined by an 'hing'
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