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BURN THE DIFFERE
The intaglio .1.
HISTORY
Born probably the work of the goldsmith in Africa to adorn the silver dishes, carved decor in the material is coated with a black solution to make it more visible. What will become the printed etching seizes the line of recessed pattern unlike the Savings size where the drawing appears in relief (woodcut).
PRINCIPLE
The process involves incising on a rigid support (copper, steel, zinc ...) drawing a line whose engraved and inked printing leaves its imprint on paper. Wiped with a gauze (tarlatan), the palm of the hand, one possible indicator for the quality of the ink, will end the operation. The paper previously moistened and brushed to bristle fiber, sucks in every detail the ink of the engraving in the press effect.
BURIN
The chisel has a cut point of steel, very sharp diamond that allows pure incision on the previously polished copper. The serious artist copper more or less deeply as he wants a line more or less black. Safe and measured gesture hollow plate and makes an instantly recognizable trait net on burning.
DRY TIP
Drypoint is a copper engraving technique performed with a steel pen (or steel tip) or a diamond sparkle.
Entering the board, the tip emerges barbs that hold the ink and gives precise contour lines less than the chisel.
It is this very special effect with very deep blacks who is wanted by the drypoint recorders.
BLACK WAY
Mezzotint, also said mezzotint, based on the principle of from black to reach the light.
To do this, the entire plate is cut with a "cradle" (goes to sleep) which gives a regular pattern and capable of retaining ink.
The drawing appears more or less clear, crushing the barbs of the frame with a "scraper" or "burnishing".
Artists often use different techniques to joint the same engraving.
The intaglio .2.
Indirect processes or hot processes are treated with acids and concern etching and aquatint.
HISTORY
Dürer discovered the principle of etching probably after seeing the burners breastplates that use acid to burn faster metal.
PRINCIPLE
The plate is soaked in an acid attack which places not covered with varnish or resin (hence the drawing). Bites or pigmentation obtained on the plate is inked and wiped with tarlatan and the palm of the hand. The preparation of the paper, ink and printing follow the same principles as those applied to direct processes and must be repeated for each print. The artist often uses several plates for the same print.
WATER-FORTE
The etcher draws to tip on a polished metal plate and pickled previously coated with a varnish. The plate is immersed in an acid that bites only the exposed parts (the drawing), the varnish protecting the rest. The line will be more corroded than copper or other metal remains immersed in more or less in the acid bath.
AQUATINT
This process allows to give the engraving material comparable effects to the wash. Used on the surface of work, it consists in spreading a resin powder on the plate is heated to cure the resin that sticks to the support.
Dipped in the acid bath, the thus prepared plate is bitten in the uncovered parts by resin grains.
The result is a pigment which provides after printing, often colored shades (shimmer ...).
Artists often use different techniques to joint the same engraving.
