printing process The first step is the preparation of ink, because every engraving technique requires a proper ink consistency.
The engraved plate is then covered with ink, then pressed to ensure that they adequately penetrate the thin grooves. The mass of ink is then cleaned by gently rubbing a tarlatan (a cotton braided) until you can see the engraved design, and then continue to play a much more delicate with clean sheets of newspaper. Finally, when the plate looks clean, she shines with the kidnapped steps of the palm of the hand: it is essential that the plate is neither too full of ink, and then when you print dirty or too low, and then with signs not properly visible.
Finally we clean the edges of the slab, then it belongs on the press and the cover with a sheet of paper intaglio
Rosaspina , previously moistened (otherwise the pressure of the press take him anyway and would be less receptive in accepting the ' ink).
Then you turn the press and the printing is complete: an error in one of the listed processes may, however, affect the final result of the press (and it is far that rare, especially if there have been problems in the engraving).
The seat This technique consists of a background color that is placed on the plate at the end of the process of inking and cleaning, just before you print: you pass a big roll on the ink color specially prepared, and then transfer it to the plate with one precise pass of the roller.
Seat yellow. The seat, in addition to providing consistent color printing, it gives more depth and clarity to the signs of the ink, and this is always a very positive effect.
Seat white (to highlight the signs).
The use of colored inks Another possibility in the press is to make use of colored inks (usually black in the ink will also mix a small amount of blue), also combined turn with the use of seat.
red ink on gray.
purple ink on gray.
printing in negative Then there is the possibility with some etching techniques to be printed in negative. It 's a very simple technique in truth, which is in the ink slab with a roller similar to that used to place the seat, but this time with a much darker color (even the black). The plate will not even clean (greatly reducing the time of printing), as the ink is deposited evenly over the surface without penetrating the signs will be white instead.
negative print with red ink marks on empty. There is also the possibility of combining the negative press from the normal inking with colored inks, for signs of a lighter color than the background.
negative print in black ink on red signs.