Misplaced Pages

#634365

58-397: Monotyping produces a unique print, or monotype; most of the ink is removed during the initial pressing. Although subsequent reprintings are sometimes possible, they differ greatly from the first print and are generally considered inferior. These prints from the original plate are called "ghost prints." A print made by pressing a new print onto another surface, effectively making the print into

116-465: A cave at Twin Rivers, near Lusaka , Zambia . Ochre , iron oxide, was the first color of paint. A favored blue pigment was derived from lapis lazuli . Pigments based on minerals and clays often bear the name of the city or region where they were originally mined. Raw sienna and burnt sienna came from Siena , Italy , while raw umber and burnt umber came from Umbria . These pigments were among

174-518: A mercury sulfide , was originally made by grinding a powder of natural cinnabar . From the 17th century on, it was also synthesized from the elements. It was favored by old masters such as Titian . Indian yellow was once produced by collecting the urine of cattle that had been fed only mango leaves. Dutch and Flemish painters of the 17th and 18th centuries favored it for its luminescent qualities, and often used it to represent sunlight . Since mango leaves are nutritionally inadequate for cattle,

232-576: A black pigment since prehistoric times. The first known synthetic pigment was Egyptian blue , which is first attested on an alabaster bowl in Egypt dated to Naqada III ( circa 3250 BC). Egyptian blue (blue frit), calcium copper silicate CaCuSi 4 O 10 , made by heating a mixture of quartz sand, lime , a flux and a copper source, such as malachite . Already invented in the Predynastic Period of Egypt , its use became widespread by

290-410: A computer display. The appearance of a pigment may depend on the brand and even the batch. Furthermore, pigments have inherently complex reflectance spectra that will render their color appearance greatly different depending on the spectrum of the source illumination , a property called metamerism . Averaged measurements of pigment samples will only yield approximations of their true appearance under

348-454: A painted sponge for a textured effect. Stencil templates can be purchased or constructed individually. Typically they are constructed of flexible plastics, including acetate, mylar, and vinyl. Stencils can be used as children's toys. Stencils have been used in the military across most nations for many years and continue to be used today. They are used to mark up equipment, vehicles, rations, signposts, helmets, etc. One use of military stencils

406-523: A plate, is called a "cognate". Stencils , watercolor , solvents , brushes , and other tools are often used to embellish a monotype print. Monotypes can be spontaneously executed and with no previous sketch . There is still no certainty as to who was the inventor of the monotype process. The Italian artist Giovanni Benedetto Castiglione (1609–64) is often credited as being the first artist to produce monotypes. He made brushed sketches intended as finished and final works of art. He began to make monotypes in

464-616: A prepared plate thus producing white and grey lines. Sallaert, on the other hand, brushed bold, tapering lines onto the printing surface with meticulous precision. It is likely that Sallaert's monotype style was influenced by the chiaroscuro woodcuts of the Dutch engraver Hendrik Goltzius . Sallaert found in the monotype a technique which was the closest to drawing and oil sketching. His monotypes and drawings are characterised by swelling lines and tapering ends. He often added by hand white highlights to his monotypes. Sallaert clearly appreciated in

522-501: A semi-recent trend in making multi-layered stencils with different shades of grey for each layer creating a more detailed stenciled image. Also well known for their use of stencil art are Blek le Rat , Epsylon, Marie Rouffet, Nuklé-art, Kim Prisu, Miss Tic and Jef aerosol from France, British artist Banksy , New York artist, world traveling artist Tavar Zawacki f.k.a. 'ABOVE', Shepard Fairey 's OBEY , and Pirate & Acid from Hollywood, California. A common tradition for stencils

580-409: A slightly more greenish or reddish blue. The following are some of the attributes of pigments that determine their suitability for particular manufacturing processes and applications: Swatches are used to communicate colors accurately. The types of swatches are dictated by the media, i.e., printing, computers, plastics, and textiles. Generally, the medium that offers the broadest gamut of color shades

638-403: A specific source of illumination. Computer display systems use a technique called chromatic adaptation transforms to emulate the correlated color temperature of illumination sources, and cannot perfectly reproduce the intricate spectral combinations originally seen. In many cases, the perceived color of a pigment falls outside of the gamut of computer displays and a method called gamut mapping

SECTION 10

#1732771728635

696-475: A substrate. These stencils are usually made out of thin (100-500 nm) low-stress Silicon nitride (SiN) in which apertures are defined by various lithographic techniques (e. g. electron beam, photolithography). Stencil lithography has unique advantages compared to other patterning techniques: it does not require spinning of a uniform layer of resist (therefore patterns can be created on 3D topographies) and it does not involve any heat or chemical treatment of

754-433: A synthetic form of lapis lazuli . Ultramarine was manufactured by treating aluminium silicate with sulfur . Various forms of cobalt blue and Cerulean blue were also introduced. In the early 20th century, Phthalo Blue , a synthetic metallo-organic pigment was prepared. At the same time, Royal Blue , another name once given to tints produced from lapis lazuli, has evolved to signify a much lighter and brighter color, and

812-513: A trademark. Colour Index International resolves all these conflicting historic, generic, and proprietary names so that manufacturers and consumers can identify the pigment (or dye) used in a particular color product. In the CII, all phthalocyanine blue pigments are designated by a generic color index number as either PB15 or PB16, short for pigment blue 15 and pigment blue 16; these two numbers reflect slight variations in molecular structure, which produce

870-664: A very long time; the technique probably reached its peak of sophistication in Katazome and other techniques used on silks for clothes during the Edo period in Japan. In Europe, from about 1450 they were commonly used to color old master prints printed in black and white, usually woodcuts . This was especially the case with playing-cards, which continued to be colored by stencil long after most other subjects for prints were left in black and white. Stencils were used for mass publications, as

928-546: Is created by the hand first being placed against the panel, with dry paint then being blown onto it through a tube, in a process that is akin to air-brush or spray-painting. The resulting image is a negative print of the hand, and is sometimes described as a "stencil" in Australian archaeology. Miniature rock art of the stencilled variety at a rock shelter known as Yilbilinji, in the Limmen National Park in

986-407: Is difficult to replicate on a computer display . Approximations are required. The Munsell Color System provides an objective measure of color in three dimensions: hue, value (or lightness), and chroma. Computer displays in general fail to show the true chroma of many pigments, but the hue and lightness can be reproduced with relative accuracy. However, when the gamma of a computer display deviates from

1044-489: Is illegal or quasi-legal, depending on the city and stenciling surface. The extensive lettering possible with stencils makes it especially attractive to political artists. For example, the anarcho-punk band Crass used stencils of anti-war , anarchist , feminist and anti-consumerist messages in a long-term graffiti campaign around the London Underground system and on advertising billboards. There has been

1102-463: Is in home decorating and arts & crafts . Home decor stencils are an important part of the DIY (Do It Yourself) industry. There are prefabricated stencil templates available for home decoration projects from hardware stores, arts & crafts stores and through the internet. Stencils are usually applied in the home with a paint or roller brush along wall borders and as trim. They can also be applied with

1160-431: Is not necessary. A stencil used in airbrushing called a frisket is pressed directly on the artwork. It can be used to control or contain overspray, create sharp or complex shapes, but is not designed to be used more than once. Wall stencils - to decorate walls and ceilings or create your own repeat for an overall modern wall pattern effect. One form of pictograph found in ancient and traditional rock paintings

1218-748: Is thought that the designs may have been created by stencils fashioned out of beeswax . Pigment A pigment is a powder used to add color or change visual appearance. Pigments are completely or nearly insoluble and chemically unreactive in water or another medium; in contrast, dyes are colored substances which are soluble or go into solution at some stage in their use. Dyes are often organic compounds whereas pigments are often inorganic . Pigments of prehistoric and historic value include ochre , charcoal , and lapis lazuli . In 2006, around 7.4 million tons of inorganic , organic , and special pigments were marketed worldwide. According to an April 2018 report by Bloomberg Businessweek ,

SECTION 20

#1732771728635

1276-536: Is used to approximate the true appearance. Gamut mapping trades off any one of lightness , hue , or saturation accuracy to render the color on screen, depending on the priority chosen in the conversion's ICC rendering intent . In biology , a pigment is any colored material of plant or animal cells. Many biological structures, such as skin , eyes , fur , and hair contain pigments (such as melanin ). Animal skin coloration often comes about through specialized cells called chromatophores , which animals such as

1334-433: Is usually mixed from Phthalo Blue and titanium dioxide , or from inexpensive synthetic blue dyes. The discovery in 1856 of mauveine , the first aniline dyes , was a forerunner for the development of hundreds of synthetic dyes and pigments like azo and diazo compounds. These dyes ushered in the flourishing of organic chemistry, including systematic designs of colorants. The development of organic chemistry diminished

1392-417: Is widely used across diverse media. Reference standards are provided by printed swatches of color shades. PANTONE , RAL , Munsell , etc. are widely used standards of color communication across diverse media like printing, plastics, and textiles . Companies manufacturing color masterbatches and pigments for plastics offer plastic swatches in injection molded color chips. These color chips are supplied to

1450-608: The 4th Dynasty . It was the blue pigment par excellence of Roman antiquity ; its art technological traces vanished in the course of the Middle Ages until its rediscovery in the context of the Egyptian campaign and the excavations in Pompeii and Herculaneum . Later premodern synthetic pigments include white lead (basic lead carbonate, (PbCO 3 ) 2 Pb(OH) 2 ), vermilion , verdigris , and lead-tin yellow . Vermilion,

1508-708: The Colour Index International (CII) as a standard for identifying the pigments that they use in manufacturing particular colors. First published in 1925—and now published jointly on the web by the Society of Dyers and Colourists ( United Kingdom ) and the American Association of Textile Chemists and Colorists (US)—this index is recognized internationally as the authoritative reference on colorants. It encompasses more than 27,000 products under more than 13,000 generic color index names. In

1566-625: The Munsell color system became the foundation for a series of color models, providing objective methods for the measurement of color. The Munsell system describes a color in three dimensions, hue , value (lightness), and chroma (color purity), where chroma is the difference from gray at a given hue and value. By the middle 20th century, standardized methods for pigment chemistry were available, part of an international movement to create such standards in industry. The International Organization for Standardization (ISO) develops technical standards for

1624-643: The Northern Territory , is one of only three known examples of such art. Usually stencilled art is life-size, using body parts as the stencil, but the 17 images of designs of human figures, boomerangs , animals such as crabs and long-necked turtles , wavy lines and geometric shapes are very rare. Found in 2017 by archaeologists , the only other recorded examples are at Nielson's Creek in New South Wales and at Kisar Island in Indonesia. It

1682-612: The octopus and chameleon can control to vary the animal's color. Many conditions affect the levels or nature of pigments in plant, animal, some protista , or fungus cells. For instance, the disorder called albinism affects the level of melanin production in animals. Pigmentation in organisms serves many biological purposes, including camouflage , mimicry , aposematism (warning), sexual selection and other forms of signalling , photosynthesis (in plants), and basic physical purposes such as protection from sunburn . Pigment color differs from structural color in that pigment color

1740-475: The CII schema, each pigment has a generic index number that identifies it chemically, regardless of proprietary and historic names. For example, Phthalocyanine Blue BN has been known by a variety of generic and proprietary names since its discovery in the 1930s. In much of Europe, phthalocyanine blue is better known as Helio Blue, or by a proprietary name such as Winsor Blue. An American paint manufacturer, Grumbacher, registered an alternate spelling (Thanos Blue) as

1798-482: The Sea, 1876-7 ); Pissarro also made several. Paul Gauguin used a variant technique involving tracing, later taken up by Paul Klee . In the twentieth century the technique became more popular; examples include the extraordinary colorful monotypes created by Marc Chagall in the 1960s. Twenty-first century examples include works by Nicole Eisenman , Christopher Wool , Karen LaMonte , and Roman Turovsky . Historically,

Monotyping - Misplaced Pages Continue

1856-445: The context in which stencil is used makes clear which meaning is intended. In practice, the (object) stencil is usually a thin sheet of material, such as paper, plastic, wood or metal, with letters or a design cut from it, used to produce the letters or design on an underlying surface by applying pigment through the cut-out holes in the material. The key advantage of a stencil is that it can be reused to repeatedly and rapidly produce

1914-411: The dependence on inorganic pigments. Before the development of synthetic pigments, and the refinement of techniques for extracting mineral pigments, batches of color were often inconsistent. With the development of a modern color industry, manufacturers and professionals have cooperated to create international standards for identifying, producing, measuring, and testing colors. First published in 1905,

1972-441: The designer or customer to choose and select the color for their specific plastic products. Plastic swatches are available in various special effects like pearl, metallic, fluorescent, sparkle, mosaic etc. However, these effects are difficult to replicate on other media like print and computer display. Plastic swatches have been created by 3D modelling to including various special effects. The appearance of pigments in natural light

2030-399: The easiest to synthesize, and chemists created modern colors based on the originals. These were more consistent than colors mined from the original ore bodies, but the place names remained. Also found in many Paleolithic and Neolithic cave paintings are Red Ochre, anhydrous Fe 2 O 3 , and the hydrated Yellow Ochre (Fe 2 O 3 H 2 O). Charcoal—or carbon black—has also been used as

2088-418: The estimated value of the pigment industry globally is $ 30 billion. The value of titanium dioxide – used to enhance the white brightness of many products – was placed at $ 13.2 billion per year, while the color Ferrari red is valued at $ 300 million each year. Like all materials, the color of pigments arises because they absorb only certain wavelengths of visible light . The bonding properties of

2146-405: The etched or engraved line on a metal plate. In the absence of any permanent features on the surface of the plate, all articulation of imagery is dependent on one unique inking, resulting in one unique print. Additionally, the term monotype is often used for an image made by inking a non-absorbent surface with a solid colour, laying over it a piece of paper and drawing onto the back of the paper. When

2204-531: The images for stenciling are broken down into color layers. Multiple layers of stencils are used on the same surface to produce multi-colored images. Hand stencils , made by blowing pigment over a hand held against a wall, are found from over 35,000 years ago in Asia and Europe, and later prehistoric dates in other continents. After that stenciling has been used as a historic painting technique on all kinds of materials. Stencils may have been used to color cloth for

2262-497: The manufacture of pigments and dyes. ISO standards define various industrial and chemical properties, and how to test for them. The principal ISO standards that relate to all pigments are as follows: Other ISO standards pertain to particular classes or categories of pigments, based on their chemical composition, such as ultramarine pigments, titanium dioxide , iron oxide pigments, and so forth. Many manufacturers of paints, inks, textiles, plastics, and colors have voluntarily adopted

2320-570: The material determine the wavelength and efficiency of light absorption. Light of other wavelengths are reflected or scattered. The reflected light spectrum defines the color that we observe. The appearance of pigments is sensitive to the source light. Sunlight has a high color temperature and a fairly uniform spectrum. Sunlight is considered a standard for white light. Artificial light sources are less uniform. Color spaces used to represent colors numerically must specify their light source. Lab color measurements, unless otherwise noted, assume that

2378-559: The measurement was recorded under a D65 light source, or "Daylight 6500 K", which is roughly the color temperature of sunlight. Other properties of a color, such as its saturation or lightness, may be determined by the other substances that accompany pigments. Binders and fillers can affect the color. Minerals have been used as colorants since prehistoric times. Early humans used paint for aesthetic purposes such as body decoration. Pigments and paint grinding equipment believed to be between 350,000 and 400,000 years old have been reported in

Monotyping - Misplaced Pages Continue

2436-504: The mid 1640s, normally working from black to white, and produced over twenty surviving ones, over half of which are set at night. It is believed that the Flemish artist Antoon Sallaert created his first monotypes in the early 1640s and is therefore to be regarded as the inventor of this printing process. Both artists used the new technique in different ways. Castiglione created most of his monotypes as black-field images by wiping away ink on

2494-665: The military, utility companies, and governments, to quickly and clearly label objects, vehicles , and locations. Stencils for an official application can be customized, or purchased as individual letters, numbers, and symbols. This allows the user to arrange words, phrases and other labels from one set of templates, unique to the item being labeled. When objects are labeled using a single template alphabet, it makes it easier to identify their affiliation or source. Stencils have also become popular for graffiti , since stencil art using spray-paint can be produced quickly and easily. These qualities are important for graffiti artists where graffiti

2552-494: The monotype technique the freedom to design on a plate before printing it on paper. William Blake developed a different technique, painting on millboard in egg tempera to produce both new works and coloured impressions of his prints and book illustrations, including his Pity . Each impression was usually then worked over by hand, using ink and watercolour. Few other artists used the technique until Degas , who made several, often working on them further after printing ( Beside

2610-427: The other hand, now refers to the results of plates that have permanent features on them. Monoprints can be thought of as variations on a theme, with the theme resulting from some permanent features being found on the plate—lines, textures—that persist from print to print. Variations are confined to those resulting from how the plate is inked prior to each print. The variations are endless, but certain permanent features on

2668-471: The paper is pulled off the resulting print consists of the line surrounded by ink picked up from the inked plate. The result has a chance element, often random and irregular which gives the print a certain charm, a technique famously used by British artist Tracey Emin , a graduate of the Royal College of Art, where the practice of monoprinting in general was regarded as "fake painting". Monoprints, on

2726-420: The plate will tend to persist from one print to the next. Stencil Stencilling produces an image or pattern on a surface by applying pigment to a surface through an intermediate object, with designed holes in the intermediate object. The holes allow the pigment to reach only some parts of the surface creating the design. The stencil is both the resulting image or pattern and the intermediate object;

2784-460: The pochoir process, a print with the outlines of the design was produced, and a series of stencils were used through which areas of color were applied by hand to the page. To produce detail, a collotype could be produced which the colors were then stenciled over. Pochoir was frequently used to create prints of intense color and is most often associated with Art Nouveau and Art Deco design. Aerosol stencils have many practical applications and

2842-459: The practice of harvesting Indian yellow was eventually declared to be inhumane. Modern hues of Indian yellow are made from synthetic pigments. Vermillion has been partially replaced in by cadmium reds. Because of the cost of lapis lazuli , substitutes were often used. Prussian blue , the oldest modern synthetic pigment, was discovered by accident in 1704. By the early 19th century, synthetic and metallic blue pigments included French ultramarine ,

2900-433: The reference value, the hue is also systematically biased. The following approximations assume a display device at gamma 2.2, using the sRGB color space . The further a display device deviates from these standards, the less accurate these swatches will be. Swatches are based on the average measurements of several lots of single-pigment watercolor paints, converted from Lab color space to sRGB color space for viewing on

2958-426: The same letters or design. Although aerosol or painting stencils can be made for one-time use, typically they are made with the intention of being reused. To be reusable, they must remain intact after a design is produced and the stencil is removed from the work surface. With some designs, this is done by connecting stencil islands (sections of material that are inside cut-out "holes" in the stencil) to other parts of

SECTION 50

#1732771728635

3016-452: The stencil concept is used frequently in industrial, commercial, artistic, residential and recreational settings, as well as by the military, government and infrastructure management. A template is used to create an outline of the image. Stencils templates can be made from any material which will hold its form, ranging from plain paper, cardboard, plastic sheets, metals, and wood. Stencils are frequently used by official organizations, including

3074-412: The stencil with bridges (narrow sections of material that are not cut out). Stencil technique in visual art is also referred to as pochoir . A related technique (which has found applicability in some surrealist compositions) is aerography , in which spray-painting is done around a three-dimensional object to create a negative of the object instead of a positive of a stencil design. This technique

3132-408: The substrate (like baking, developing and removing the resist). Thus it allows a wide range of substrates (e.g. flexible, surface-treated) and materials (e. g. organics) to be used. A stencil technique is employed in screen printing which uses a tightly woven mesh screen coated in a thin layer of emulsion to reproduce the original image. As the stencil is attached to the screen, a contiguous template

3190-474: The terms monotype and monoprint were often used interchangeably. More recently, however, they have come to refer to two different, though similar, types of printmaking. Both involve the transfer of ink from a plate to the paper, canvas, or other surface that will ultimately hold the work of art. In the case of monotypes, the plate is a featureless plate. It contains no features that will impart any definition to successive prints. The most common feature would be

3248-545: The type did not have to be hand-written. Stencils were popular as a method of book illustration, and for that purpose, the technique was at its height of popularity in France during the 1920s when André Marty , Jean Saudé and many other studios in Paris specialized in the technique. Low wages contributed to the popularity of the highly labor-intensive process. When stencils are used in this way they are often called "pochoir". In

3306-664: Was the application of playing card designs to USA Airborne helmets during World War Two as a method to identify regimental units. Silk screening is a type of printing on paper or textiles , in which an ink is embedded in the cloth. The ink is controlled through the use of a stencil, which is placed directly over the paper or textile. This process can only handle one color of ink at a time. Therefore, multi-colored designs must be silk screened several times, with each interval taking time to dry. Stencils are also used in micro- and nanotechnology , as miniature shadow masks through which material can be deposited, etched or ions implanted onto

3364-600: Was used in cave paintings dating to 10,000 BC, where human hands were used in painting handprint outlines among paintings of animals and other objects. The artist sprayed pigment around his hand by using a hollow bone, blown by mouth to direct a stream of pigment. Screen printing also uses a stencil process, as does mimeography . The masters from which mimeographed pages are printed are often called "stencils". Stencils can be made with one or many colour layers using different techniques, with most stencils designed to be applied as solid colours. During screen printing and mimeography,

#634365