![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from CH973/92 external-priority Application filed by De la Rue Giori SA filed Critical De la Rue Giori SA Assigned to DE LA RUE GIORI, S. Original Assignee De la Rue Giori SA Priority date (The priority date is an assumption and is not a legal conclusion. ![]() Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Germann Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US08/023,216 Inventor Albrecht J. Google Patents Intaglio printing machine with direct and color-collect inkingĭownload PDF Info Publication number US5282417A US5282417A US08/023,216 US2321693A US5282417A US 5282417 A US5282417 A US 5282417A US 2321693 A US2321693 A US 2321693A US 5282417 A US5282417 A US 5282417A Authority US United States Prior art keywords machine roller intaglio printing cylinder stand Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5282417A - Intaglio printing machine with direct and color-collect inking Engraving and copper plate.US5282417A - Intaglio printing machine with direct and color-collect inking The pressure of the press not only forces the ink onto the damp paper, but also produces an outline of the outer edges of the metal plate in the paper, known as a plate mark. Once the plate has been run through the press, the resulting impression on paper displays a reverse image of the original engraved composition. Before the plate and sheet are moved through the press together, they are covered with printing blankets, often made of felt, to soften the pressure on the metal plate. The plate is placed on the bed of the press with the ink side up, and a sheet of dampened paper is placed on top. While some early intaglio prints appear to have been produced by simply pressing the paper against the plate by hand, in most cases the pressure required to force the paper into the finely cut lines entailed the use of a special press equipped with rollers. In certain cases, a printmaker can choose not to clean the plate entirely, but to leave a thin layer of ink on the plate to create tone.Īfter the plate is wiped to the desired level, it is ready for printing. The plate is further cleaned using a tarlatan rag (heavily starched cheesecloth).Īs a last measure, printmakers often use their palms or the sides of their hands to wipe away the last bits of ink. ![]() A cloth ball, cardboard tab, or equivalent material is used to gently spread ink across the whole face of the plate the same material is used to remove most of the excess ink from the surface. Once the full composition has been cut into the plate, it is ready to be inked. The printmaker must take care not to cut the lines or the markings too closely together so that the ink does not bleed between them. The closer the marks are placed together, the darker those areas will appear. To enhance a purely linear composition with tone, the printmaker applies a system of hatching-lines, dots, and dashes, among other kinds of markings, placed close together to create denser areas in the print that hold more ink. The metal plate is placed on a sandbag or pillow by the printmaker to help manipulate and move the plate, especially when a composition requires curved lines. Creating smooth lines requires both strength and control on the part of the printmaker. Cutting into the plate also results in the displacement of a thin curl of metal residue.ĭifferent sizes of burins can affect the size of the lines the pressure the printmaker applies to the burin can also be used to create thinner or thicker grooves in the plate. When pressure is applied, the burin cuts away a thin layer of the metal to create a recessed line or groove in the plate. The burin is then set to engage with the surface of the plate. The printmaker holds the burin by placing the wooden handle against the palm of their hand and grips the shaft with their thumb and third finger. When making an engraving, the printmaker incises or cuts a composition directly into the surface of a metal plate using a sharp tool, known as a burin: a steel shaft ending in a beveled diamond-shaped tip that is set into a rounded wooden handle. The metal plate is first polished to remove all scratches and imperfections from the surface so that only the intentional lines will be printed. In engraving, the plate can be made of copper or zinc. Engraving is an intaglio printmaking process in which lines are cut into a metal plate in order to hold the ink.
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