Printmaking
Wikipedia, the free encyclopedia - Cite This SourcePrintmaking is the process of making artworks by printing, normally on paper. Except in the case of monotyping, the process is capable of producing multiples of the same piece, which is called a print. Each piece is not a copy but an original since it is not a reproduction of another work of art and is technically known as an impression. Painting or drawing, on the other hand, create a unique original piece of artwork. Prints are created from a single original surface, known technically as a matrix. Common types of matrices include: plates of metal, usually copper or zinc for engraving or etching; stone, used for lithography; blocks of wood for woodcuts, linoleum for linocuts and fabric plates for screen-printing. But there are many other kinds, discussed below. Works printed from a single plate create an edition, in modern times usually each signed and numbered to form a limited edition. Prints may also be published in book form, as artist's books. A single print could be the product of one or multiple techniques.
Techniques
Overview
Printmaking techniques can be divided into the following basic families or categories:
- relief printing, where the ink goes on the original surface of the matrix. Relief techniques include: woodcut or woodblock as the Asian forms are usually known, wood engraving, linocut and metalcut;
- intaglio, where the ink goes beneath the original surface of the matrix. Intaglio techniques include: engraving, etching, mezzotint, aquatint, chine-collé and drypoint;
- planographic, where the matrix retains its entire surface, but some parts are treated to make the image. Planographic techniques include: lithography, monotyping, and digital techniques.
- stencil, including: screen-printing and pochoir
- Viscosity printing
Other types of printmaking techniques outside these groups include collography and foil imaging. Modern printing technology may be included such as Digital printers, photographic mediums and combination of both digital process and conventional processes.
Many of these techniques can also be combined, especially within the same family. For example Rembrandt's prints are usually referred to as "etchings" for convenience, but very often include work in engraving and drypoint as well, and sometimes have no etching at all.
Woodcut
Woodcut, a type of relief print, is the earliest printmaking technique, and the only one traditionally used in the Far East. It was probably first developed as a means of printing patterns on cloth, and by the 5th century was used in China for printing text and images on paper. Woodcuts of images on paper developed around 1400 in Europe, and slightly later in Japan. These are the two areas where woodcut has been most extensively used purely as a process for making images without text.
The artist draws a sketch either on a plank of wood, or on paper which is transferred to the wood. Traditionally the artist then handed the work to a specialist cutter, who then uses sharp tools to carve away the parts of the block that he/she does not want to receive the ink. The raised parts of the block are inked with a brayer, then a sheet of paper, perhaps slightly damp, is placed over the block. The block is then rubbed with a baren or spoon, or is run through a press. If in color, separate blocks are used for each color.
Engraving
The process was developed in Germany in the 1430s from the engraving used by goldsmiths to decorate metalwork. Engravers use a hardened steel tool called a burin to cut the design into the surface of a metal plate, traditionally made of copper. Engraving using a burin is generally a difficult skill to learn.
Gravers come in a variety of shapes and sizes that yield different line types. The burin produces a unique and recognizable quality of line that is characterized by its steady, deliberate appearance and clean edges. Other tools such as mezzotint rockers, roulets and burnishers are used for texturing effects.
To make a print, the engraved plate is inked all over, then the ink is wiped off the surface, leaving only ink in the engraved lines. The plate is then put through a high-pressure printing press together with a sheet of paper (often moistened to soften it). The paper picks up the ink from the engraved lines, making a print. The process can be repeated many times; typically several hundred impressions (copies) could be printed before the printing plate shows much sign of wear.
In the 20th century, copper-plate engraving was revived as a serious art form by Josef Hecht and Stanley William Hayter.
Etching
Etching is part of the intaglio family (along with engraving, drypoint, mezzotint, and aquatint.) The process is believed to have been invented by Daniel Hopfer (circa 1470-1536) of Augsburg, Germany, who decorated armour in this way, and applied the method to printmaking. Etching soon came to challenge engraving as the most popular printmaking medium. Its great advantage was that, unlike engraving which requires special skill in metalworking, etching is relatively easy to learn for an artist trained in drawing.
Etching prints are generally linear and often contain fine detail and contours. Lines can vary from smooth to sketchy. An etching is opposite of a woodcut in that the raised portions of an etching remain blank while the crevices hold ink. In pure etching, a metal (usually copper, zinc or steel) plate is covered with a waxy ground. The artist then scratches off the ground with a pointed etching needle where he wants a line to appear in the finished piece, so exposing the bare metal. The plate is then dipped in a bath of acid, or has acid washed over it. The acid "bites" into the metal, where it is exposed, leaving behind lines to the plate. The remaining ground is then cleaned off the plate, and the printing process is then just the same as for engraving.
Mezzotint
An intaglio variant of engraving where the plate first is roughened evenly all over; the image is then brought out by scraping smooth the surface, creating the image by working from dark to light. It is possible to create the image by only roughening the plate selectively, so working from light to dark.Mezzotint is known for the luxurious quality of its tones: first, because an evenly, finely roughened surface holds a lot of ink, allowing deep solid colors to be printed; secondly because the process of smoothing the texture with burin, burnisher and scraper allows fine gradations in tone to be developed.
The mezzotint printmaking method was invented by Ludwig von Siegen (1609-1680). The process was especially widely used in England from the mid-eighteenth century, to reproduce portraits and other paintings.
Aquatint
A variant of etching. Like etching, aquatint technique involves the application of acid to make marks in a metal plate. Where the etching technique uses a needle to make lines that retain ink, aquatint relies on powdered resin which is acid resistant in the ground to create a tonal effect. The tonal variation is controlled by the level of acid exposure over large areas, and thus the image is shaped by large sections at a time.Goya used aquatint for most of his prints.
Drypoint
A variant of engraving, done with a sharp point, rather than a v-shaped burin. While engraved lines are very smooth and hard-edged, drypoint scratching leaves a rough burr at the edges of each line. This burr gives drypoint prints a characteristically soft, and sometimes blurry, line quality. Because the pressure of printing quickly destroys the burr, drypoint is useful only for very small editions; as few as ten or twenty impressions. To counter this, and allow for longer print runs, electro-plating (here called steelfacing) has been used since the nineteenth century to harden the surface of a plate.The technique appears to have been invented by the Housebook Master, a south German fifteenth century artist, all of whose prints are in drypoint only. Among the most famous artists of the old master print: Albrecht Dürer produced 3 drypoints before abandoning the technique; Rembrandt used it frequently, but usually in conjunction with etching and engraving.
Lithography
Lithography is a technique invented in 1798 by Alois Senefelder and based on the chemical repulsion of oil and water. A porous surface, normally limestone, is used; the image is drawn on the limestone with a greasy medium. Acid is applied, transferring the grease to the limestone, leaving the image 'burned' into the surface. Gum arabic, a water soluble substance, is then applied, sealing the surface of the stone not covered with the drawing medium. The stone is wetted, with water staying only on the surface not covered in grease-based residue of the drawing; the stone is then 'rolled up', meaning oil ink is applied with a roller covering the entire surface; since water repels the oil in the ink, the ink adheres only to the greasy parts, perfectly inking the image. A sheet of dry paper is placed on the surface, and the image is transferred to the paper by the pressure of the printing press. Lithography is known for its ability to capture fine gradations in shading and very small detail.
A variant is photo-lithography, in which the image is captured by photographic processes on metal plates; printing is carried out in the same way.