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Watercolor (
American English American English, sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. English is the most widely spoken language in the United States and in most circumstances ...
) or watercolour (
British English British English (BrE, en-GB, or BE) is, according to Lexico, Oxford Dictionaries, "English language, English as used in Great Britain, as distinct from that used elsewhere". More narrowly, it can refer specifically to the English language in ...
; see spelling differences), also ''aquarelle'' (; from Italian diminutive of Latin ''aqua'' "water"), is a
painting Painting is the practice of applying paint, pigment, color or other medium to a solid surface (called the "matrix" or "support"). The medium is commonly applied to the base with a brush, but other implements, such as knives, sponges, and ai ...
method”Watercolor may be as old as art itself, going back to the Stone Age when early ancestors combined earth and charcoal with water to create the first wet-on-dry picture on a cave wall." London, Vladimir. The Book on Watercolor (p. 19). in which the
paint Paint is any pigmented liquid, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, color, or provide texture. Paint can be made in many ...
s are made of
pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic comp ...
s suspended in a water-based solution. ''Watercolor'' refers to both the medium and the resulting
artwork A work of art, artwork, art piece, piece of art or art object is an artistic creation of aesthetic value. Except for "work of art", which may be used of any work regarded as art in its widest sense, including works from literature ...
. Aquarelles painted with water-soluble colored ink instead of modern water colors are called ''aquarellum atramento'' (
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...
for "aquarelle made with ink") by experts. However, this term has now tended to pass out of use. The conventional and most common ''support''—material to which the paint is applied—for watercolor paintings is watercolor paper. Other supports or substrates include stone, ivory, silk, reed,
papyrus Papyrus ( ) is a material similar to thick paper that was used in ancient times as a writing surface. It was made from the pith of the papyrus plant, '' Cyperus papyrus'', a wetland sedge. ''Papyrus'' (plural: ''papyri'') can also refer to a ...
, bark papers, plastics,
vellum Vellum is prepared animal skin or membrane, typically used as writing material. Parchment is another term for this material, from which vellum is sometimes distinguished, when it is made from calfskin, as opposed to that made from other ani ...
,
leather Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. The most common leathers come from cattle, sheep, goats, equine animals, buffalo, pigs and ho ...
, fabric, wood, and watercolor canvas (coated with a gesso that is specially formulated for use with watercolors). Watercolor paper is often made entirely or partially with cotton. This gives the surface the appropriate texture and minimizes distortion when wet. Watercolor papers are usually cold-pressed papers that provide better texture and appearance with a weight at least 300 gsm. Under 300 gsm is commonly not recommended for anything but sketching. Transparency is the main characteristic of watercolors. Watercolors can also be made opaque by adding Chinese white. This is not a method to be used in true watercolor. Watercolor paint is an ancient form of painting, if not the most ancient form of art itself. In East Asia, watercolor painting with inks is referred to as brush painting or scroll painting. In Chinese, Korean and Japanese painting it has been the dominant medium, often in monochrome black or browns, often using inkstick or other pigments. India, Ethiopia and other countries have long watercolor painting traditions as well. Many Western artists, especially in the early 19th century, used watercolor primarily as a sketching tool in preparation for the "finished" work in oil or engraving. Until the end of the eighteenth century, traditional watercolors were known as ‘tinted drawings’.


History

Watercolor painting is extremely old, dating perhaps to the cave paintings of paleolithic Europe, and has been used for manuscript illustration since at least Egyptian times, with particular prominence in the
European Middle Ages The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD 500), the Middle Ages (AD 500 to AD 1500), and the modern era (since AD 1500). The first ea ...
. However, its ''continuous'' history as an art medium begins with
the Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass idea ...
. The German Northern Renaissance artist Albrecht Dürer (1471–1528), who painted several fine botanical, wildlife, and landscape watercolors, is generally considered among the earliest examples of watercolor. An important school of watercolor painting in Germany was led by Hans Bol (1534–1593) as part of the Dürer Renaissance. Despite this early start, watercolors were generally used by Baroque easel painters only for sketches, copies or cartoons (full-scale design drawings) Notable early practitioners of watercolor painting were
Van Dyck Sir Anthony van Dyck (, many variant spellings; 22 March 1599 – 9 December 1641) was a Brabantian Flemish Baroque artist who became the leading court painter in England after success in the Southern Netherlands and Italy. The seventh ...
(during his stay in England),
Claude Lorrain Claude Lorrain (; born Claude Gellée , called ''le Lorrain'' in French; traditionally just Claude in English; c. 1600 – 23 November 1682) was a French painter, draughtsman and etcher of the Baroque Painting, Baroque era. He spent most ...
, Giovanni Benedetto Castiglione, and many Dutch and
Flemish Flemish (''Vlaams'') is a Low Franconian dialect cluster of the Dutch language. It is sometimes referred to as Flemish Dutch (), Belgian Dutch ( ), or Southern Dutch (). Flemish is native to Flanders, a historical region in northern Belgium ...
artists. However,
botanical illustration Botanical illustration is the art of depicting the form, color, and details of plant species, frequently in watercolor paintings. They must be scientifically accurate but often also have an artistic component and may be printed with a botanical ...
and wildlife illustration perhaps form the oldest and most important traditions in watercolor painting. Botanical illustrations became popular during the Renaissance, both as hand-tinted woodblock illustrations in books or broadsheets and as tinted ink drawings on
vellum Vellum is prepared animal skin or membrane, typically used as writing material. Parchment is another term for this material, from which vellum is sometimes distinguished, when it is made from calfskin, as opposed to that made from other ani ...
or paper. Botanical artists have traditionally been some of the most exacting and accomplished watercolor painters, and even today, watercolors—with their unique ability to summarize, clarify, and idealize in full color—are used to illustrate scientific and museum publications. Wildlife illustration reached its peak in the 19th century with artists such as John James Audubon, and today many naturalist field guides are still illustrated with watercolor paintings.


English school

Several factors contributed to the spread of watercolor painting during the 18th century, particularly in England. Among the elite and aristocratic classes, watercolor painting was one of the incidental adornments of a good education; mapmakers, military officers, and engineers valued it for its usefulness in depicting properties, terrain, fortifications, field geology, and for illustrating public works or commissioned projects. Watercolor artists were commonly taken on geological or archaeological expeditions, funded by the Society of Dilettanti (founded in 1733), to document discoveries in the Mediterranean, Asia, and the New World. These expeditions stimulated the demand for topographical painters, who churned out memento paintings of famous sites (and sights) along the Grand Tour to Italy that was undertaken by every fashionable young man of the time. In the late 18th century, the English cleric William Gilpin wrote a series of hugely popular books describing his
picturesque Picturesque is an aesthetic ideal introduced into English cultural debate in 1782 by William Gilpin in ''Observations on the River Wye, and Several Parts of South Wales, etc. Relative Chiefly to Picturesque Beauty; made in the Summer of the Year ...
journeys throughout rural England, and illustrated them with self-made sentimentalized monochrome watercolors of river valleys, ancient castles, and abandoned churches. This example popularized watercolors as a form of personal tourist journal. The confluence of these cultural, engineering, scientific, tourist, and amateur interests culminated in the celebration and promotion of watercolor as a distinctly English "national art". William Blake published several books of hand-tinted engraved poetry, provided illustrations to Dante's ''Inferno'', and he also experimented with large monotype works in watercolor. Among the many other significant watercolorists of this period were
Thomas Gainsborough Thomas Gainsborough (14 May 1727 (baptised) – 2 August 1788) was an English portrait and landscape painter, draughtsman, and printmaker. Along with his rival Sir Joshua Reynolds, he is considered one of the most important British artists of ...
, John Robert Cozens, Francis Towne, Michael Angelo Rooker, William Pars, Thomas Hearne, and John Warwick Smith. From the late 18th century through the 19th century, the market for printed books and domestic art contributed substantially to the growth of the medium. Watercolors were used as the basic document from which collectible landscape or tourist engravings were developed, and hand-painted watercolor originals or copies of famous paintings contributed to many upper class art portfolios. Satirical broadsides by
Thomas Rowlandson Thomas Rowlandson (; 13 July 175721 April 1827) was an English artist and caricaturist of the Georgian Era, noted for his political satire and social observation. A prolific artist and printmaker, Rowlandson produced both individual social an ...
, many published by Rudolph Ackermann, were also extremely popular. The three English artists credited with establishing watercolor as an independent, mature painting medium are Paul Sandby (1730–1809), often called the "father of the English watercolor"; Thomas Girtin (1775–1802), who pioneered its use for large format, romantic or picturesque landscape painting; and Joseph Mallord William Turner (1775–1851), who brought watercolor painting to the highest pitch of power and refinement, and created hundreds of superb historical, topographical, architectural, and mythological watercolor paintings. His method of developing the watercolor painting in stages, starting with large, vague color areas established on wet paper, then refining the image through a sequence of washes and glazes, permitted him to produce large numbers of paintings with "workshop efficiency" and made him a multimillionaire, partly by sales from his personal art gallery, the first of its kind. Among the important and highly talented contemporaries of Turner and Girtin were
John Varley John Varley may refer to: * John Varley (canal engineer) (1740–1809), English canal engineer * John Varley (painter) (1778–1842), English painter and astrologer * John Varley (author) (born 1947), American science fiction author * John Silvest ...
, John Sell Cotman, Anthony Copley Fielding, Samuel Palmer, William Havell, and
Samuel Prout Samuel Prout painted by John Jackson in 1831 Market Day by Samuel Prout A View in Nuremberg by Samuel Prout Utrecht Town Hall by Samuel Prout in 1841 Samuel Prout (; 17 September 1783 – 10 February 1852) was a British watercolourist, and ...
. The Swiss painter
Abraham-Louis-Rodolphe Ducros Abraham-Louis-Rodolphe Ducros (21 July 1748 – 18 February 1810) was a Swiss painter, watercolourist and engraver, and was a main figure in the 'pre-romantic' movement. Biography Abraham-Louis-Rodolphe was the son of a drawing master at Yverd ...
was also widely known for his large format, romantic paintings in watercolor. The confluence of amateur activity, publishing markets, middle class art collecting, and 19th-century technique led to the formation of English watercolor painting societies: the ''Society of Painters in Water Colours'' (1804, now known as the
Royal Watercolour Society The Royal Watercolour Society is a British institution of painters working in watercolours. The Society is a centre of excellence for water-based media on paper, which allows for a diverse and interesting range of approaches to the medium of wat ...
) and the ''New Water Colour Society'' (1832, now known as the Royal Institute of Painters in Water Colours). (A ''Scottish Society of Painters in Water Colour'' was founded in 1878, now known as the Royal Scottish Society of Painters in Watercolour.) These societies provided annual exhibitions and buyer referrals for many artists. They also engaged in petty status rivalries and aesthetic debates, particularly between advocates of traditional ("transparent") watercolor and the early adopters of the denser color possible with body color or gouache ("opaque" watercolor). The late Georgian and Victorian periods produced the zenith of the British watercolor, among the most impressive 19th-century works on paper, due to artists Turner, Varley, Cotman, David Cox, Peter de Wint William Henry Hunt, John Frederick Lewis,
Myles Birket Foster Myles Birket Foster (4 February 1825 – 27 March 1899) was a British illustrator, watercolourist and engraver in the Victorian period. His name is also to be found as Myles Birkett Foster. Life and work Foster was born in North Shield ...
, Frederick Walker, Thomas Collier, Arthur Melville and many others. In particular, the graceful, lapidary, and atmospheric watercolors ("genre paintings") by
Richard Parkes Bonington Richard Parkes Bonington (25 October 1802 – 23 September 1828) was an English Romantic landscape painter, who moved to France at the age of 14 and can also be considered as a French artist, and an intermediary bringing aspects of English styl ...
created an international fad for watercolor painting, especially in England and France in the 1820s. In the latter half of the 19th century, portrait painter
Frederick Havill Frederick Havill (1815 – April 1884) was an English artist of the 19th century. Havill contributed to multiple mediums, but is best remembered for his role in portraiture and for being a founding member of the modern English school of watercolo ...
became a key player in the establishment of watercolour in England. Art critic Huntly Carter described Havill as a "founder of the water colour school." The popularity of watercolors stimulated many innovations, including heavier and more sized wove papers, and brushes (called "pencils") manufactured expressly for watercolor. Watercolor tutorials were first published in this period by Varley, Cox, and others, establishing the step-by-step painting instructions that still characterize the genre today; ''The Elements of Drawing'', a watercolor tutorial by English art critic
John Ruskin John Ruskin (8 February 1819 20 January 1900) was an English writer, philosopher, art critic and polymath of the Victorian era. He wrote on subjects as varied as geology, architecture, myth, ornithology, literature, education, botany and po ...
, has been out of print only once since it was first published in 1857. Commercial brands of watercolor were marketed and paints were packaged in metal tubes or as dry cakes that could be "rubbed out" (dissolved) in studio porcelain or used in portable metal paint boxes in the field. Breakthroughs in chemistry made many new pigments available, including synthetic ultramarine blue, cobalt blue, viridian, cobalt violet,
cadmium yellow Cadmium pigments are a class of pigments that contain cadmium. Most of the cadmium produced worldwide has been for use in rechargeable nickel–cadmium batteries, which have been replaced by other rechargeable nickel-chemistry cell varieties ...
, aureolin ( potassium cobaltinitrite), zinc white, and a wide range of carmine and madder lakes. These pigments, in turn, stimulated a greater use of color with all painting media, but in English watercolors, particularly by the Pre-Raphaelite Brotherhood.


United States

Watercolor painting also became popular in the United States during the 19th century; outstanding early practitioners included John James Audubon, as well as early Hudson River School painters such as William H. Bartlett and George Harvey. By mid-century, the influence of John Ruskin led to increasing interest in watercolors, particularly the use of a detailed "Ruskinian" style by such artists as John W. Hill Henry, William Trost Richards,
Roderick Newman Roderick, Rodrick or Roderic (Proto-Germanic ''*wikt:Reconstruction:Proto-Germanic/Hrōþirīks, Hrōþirīks'', from ''*wikt:Reconstruction:Proto-Germanic/hrōþiz, hrōþiz'' "fame, glory" + ''*wikt:Reconstruction:Proto-Germanic/rīks, ríks'' ...
, and
Fidelia Bridges Fidelia Bridges (May 19, 1834 – May 14, 1923) was an American artist of the late 19th century. She was known for delicately detailed paintings that captured flowers, plants, and birds in their natural settings. Although she began as an oil paint ...
. The ''American Society of Painters in Watercolor'' (now the American Watercolor Society) was founded in 1866. Late-19th-century American exponents of the medium included Thomas Moran, Thomas Eakins, John LaFarge, John Singer Sargent, Childe Hassam, and, preeminently,
Winslow Homer Winslow Homer (February 24, 1836 – September 29, 1910) was an American landscape painter and illustrator, best known for his marine subjects. He is considered one of the foremost painters in 19th-century America and a preeminent figure ...
.


Europe

Watercolor was less popular in Continental Europe. In the 18th century,
gouache Gouache (; ), body color, or opaque watercolor is a water-medium paint consisting of natural pigment, water, a binding agent (usually gum arabic or dextrin), and sometimes additional inert material. Gouache is designed to be opaque. Gouache ...
was an important medium for the Italian artists
Marco Ricci Marco Ricci (6 June 1676 – 21 January 1730) was an Italian painter of the Baroque period. Early years He was born at Belluno and received his first instruction in art from his uncle, Sebastiano Ricci, likely in Milan in 1694–6.Giacometti, Mar ...
and Francesco Zuccarelli, whose landscape paintings were widely collected. Gouache was used by a number of artists in France as well. In the 19th century, the influence of the English school helped popularize "transparent" watercolor in France, and it became an important medium for
Eugène Delacroix Ferdinand Victor Eugène Delacroix ( , ; 26 April 1798 – 13 August 1863) was a French Romantic artist regarded from the outset of his career as the leader of the French Romantic school.Noon, Patrick, et al., ''Crossing the Channel: British ...
, François Marius Granet, Henri-Joseph Harpignies, and the satirist Honoré Daumier. Other European painters who worked frequently in watercolor were Adolph Menzel in Germany and Stanisław Masłowski in Poland. The adoption of brightly colored, petroleum-derived aniline dyes (and pigments compounded from them), which all fade rapidly on exposure to light, and the efforts to properly conserve the twenty thousand
J. M. W. Turner Joseph Mallord William Turner (23 April 177519 December 1851), known in his time as William Turner, was an English Romantic painter, printmaker and watercolourist. He is known for his expressive colouring, imaginative landscapes and turbulen ...
paintings inherited by the British Museum in 1857, led to a negative reevaluation of the permanence of pigments in watercolor. This caused a sharp decline in their status and market value. Nevertheless, isolated practitioners continued to prefer and develop the medium into the 20th century.
Paul Signac Paul Victor Jules Signac ( , ; 11 November 1863 – 15 August 1935) was a French Neo-Impressionist painter who, working with Georges Seurat, helped develop the Pointillist style. Biography Paul Signac was born in Paris on 11 November 1863. ...
created landscape and maritime watercolors, and Paul Cézanne developed a watercolor painting style consisting entirely of overlapping small glazes of pure color.


20th and 21st centuries

Among the many 20th-century artists who produced important works in watercolor were
Wassily Kandinsky Wassily Wassilyevich Kandinsky (; rus, Василий Васильевич Кандинский, Vasiliy Vasilyevich Kandinskiy, vɐˈsʲilʲɪj vɐˈsʲilʲjɪvʲɪtɕ kɐnʲˈdʲinskʲɪj;  – 13 December 1944) was a Russian painter a ...
, Emil Nolde,
Paul Klee Paul Klee (; 18 December 1879 – 29 June 1940) was a Swiss-born German artist. His highly individual style was influenced by movements in art that included expressionism, cubism, and surrealism. Klee was a natural draftsman who experimented wi ...
, Egon Schiele, and Raoul Dufy. In America, the major exponents included Charles Burchfield,
Edward Hopper Edward Hopper (July 22, 1882 – May 15, 1967) was an American realism, American realist painter and printmaker. While he is widely known for his oil paintings, he was equally proficient as a watercolor painting, watercolorist and printmaker in e ...
,
Georgia O'Keeffe Georgia Totto O'Keeffe (November 15, 1887 – March 6, 1986) was an American modernist artist. She was known for her paintings of enlarged flowers, New York skyscrapers, and New Mexico landscapes. O'Keeffe has been called the "Mother of Ame ...
, Charles Demuth, and
John Marin John Marin (December 23, 1870 – October 2, 1953) was an early American modernist artist. He is known for his abstract landscapes and watercolors. Biography Marin was born in Rutherford, New Jersey. His mother died nine days after his birth, ...
(80% of his total work is watercolor). In this period, American watercolor painting often emulated European Impressionism and Post-Impressionism, but significant individualism flourished in "regional" styles of watercolor painting from the 1920s to 1940s. In particular, the " Cleveland School" or "Ohio School" of painters centered around the
Cleveland Museum of Art The Cleveland Museum of Art (CMA) is an art museum in Cleveland, Ohio, located in the Wade Park District, in the University Circle neighborhood on the city's east side. Internationally renowned for its substantial holdings of Asian and Egypt ...
, and the California Scene painters were often associated with Hollywood animation studios or the Chouinard Art Institute (now
California Institute of the Arts The California Institute of the Arts (CalArts) is a private art university in Santa Clarita, California. It was incorporated in 1961 as the first degree-granting institution of higher learning in the US created specifically for students of bo ...
). The California painters exploited their state's varied geography, Mediterranean climate, and " automobility" to reinvigorate the outdoor or "plein air" tradition. The most influential among them were
Phil Dike Phil Dike (1906-1990) was an American painter and art teacher. He painted watercolors, and he taught at Scripps College and the Claremont Graduate University. His work is in the permanent collections of the Metropolitan Museum of Art, the National ...
,
Millard Sheets Millard Owen Sheets (June 24, 1907 – March 31, 1989) was an American artist, teacher, and architectural designer. He was one of the earliest of the California Scene Painting artists and helped define the art movement. Many of his large-scale bui ...
, Rex Brandt, Dong Kingman, and Milford Zornes. The California Water Color Society, founded in 1921 and later renamed the National Watercolor Society, sponsored important exhibitions of their work. The largest watercolor in the world at the moment (at tall and wide) is ''Building 6 Portrait: Interior.'' Produced by American artist Barbara Prey on commission for MASS MoCA, the work can be seen at MASS MoCA's Robert W. Wilson Building. Although the rise of abstract expressionism, and the trivializing influence of amateur painters and advertising- or workshop-influenced painting styles, led to a temporary decline in the popularity of watercolor painting after c. 1950, watercolors continue to be utilized by artists like
Martha Burchfield Martha Elizabeth Burchfield Richter (June 28, 1924 – April 10, 1977) was an American watercolorist, the daughter of artist Charles Ephraim Burchfield (1893–1967). Similarly to her father, Burchfield had an affinity for flowering plants, trees ...
, Joseph Raffael, Andrew Wyeth, Philip Pearlstein, Eric Fischl, Gerhard Richter,
Anselm Kiefer Anselm Kiefer (born 8 March 1945) is a German painter and sculptor. He studied with Peter Dreher and Horst Antes at the end of the 1960s. His works incorporate materials such as straw, ash, clay, lead, and shellac. The poems of Paul Celan h ...
, and Francesco Clemente. In Spain, Ceferí Olivé created an innovative style followed by his students, such as
Rafael Alonso López-Montero Rafael may refer to: * Rafael (given name) or Raphael, a name of Hebrew origin * Rafael, California * Rafael Advanced Defense Systems, Israeli manufacturer of weapons and military technology * Hurricane Rafael, a 2012 hurricane Fiction * ''R ...
and
Francesc Torné Gavaldà Francesc () is a masculine given name of Catalan origin. It is a cognate of Francis, Francesco, Francisco, François, and Franz. People with the name include: *Cesc Fàbregas (Francesc Fàbregas i Soler) (born 1987), Spanish professional football p ...
. In
Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...
, the major exponents are Ignacio Barrios,
Edgardo Coghlan Edgardo Coghlan (1928 – September 28, 1995), was a Mexican painter who mostly specialized in watercolors depicting Mexican landscapes and people. His work became very popular during his lifetime, collected by museums, other institutions and Mexic ...
, Ángel Mauro, Vicente Mendiola, and Pastor Velázquez. In the
Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Mo ...
, where this pictorial technique has many followers, there are stand-out artists such as Francisco Bonnín Guerín, José Comas Quesada, and Alberto Manrique.


Watercolor paint

Watercolor paint consists of four principal ingredients: a
pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic comp ...
;
gum arabic Gum arabic, also known as gum sudani, acacia gum, Arabic gum, gum acacia, acacia, Senegal gum, Indian gum, and by other names, is a natural gum originally consisting of the hardened sap of two species of the ''Acacia'' tree, ''Senegalia se ...
as a binder to hold the pigment in suspension; additives like
glycerin Glycerol (), also called glycerine in British English and glycerin in American English, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids know ...
, ox gall,
honey Honey is a sweet and viscous substance made by several bees, the best-known of which are honey bees. Honey is made and stored to nourish bee colonies. Bees produce honey by gathering and then refining the sugary secretions of plants (primar ...
, and preservatives to alter the
viscosity The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. Viscosity quantifies the inte ...
, hiding, durability or color of the pigment and vehicle mixture; and, evaporating water, as a solvent used to thin or dilute the paint for application. The more general term '' watermedia'' refers to any painting medium that uses water as a solvent and that can be applied with a brush, pen, or sprayer. This includes most inks,
watercolor Watercolor (American English) or watercolour (British English; see spelling differences), also ''aquarelle'' (; from Italian diminutive of Latin ''aqua'' "water"), is a painting method”Watercolor may be as old as art itself, going back to ...
s,
tempera Tempera (), also known as egg tempera, is a permanent, fast-drying painting medium consisting of colored pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done ...
s,
casein Casein ( , from Latin ''caseus'' "cheese") is a family of related phosphoproteins ( αS1, aS2, β, κ) that are commonly found in mammalian milk, comprising about 80% of the proteins in cow's milk and between 20% and 60% of the proteins in human ...
s,
gouache Gouache (; ), body color, or opaque watercolor is a water-medium paint consisting of natural pigment, water, a binding agent (usually gum arabic or dextrin), and sometimes additional inert material. Gouache is designed to be opaque. Gouache ...
s, and modern
acrylic paint Acrylic paint is a fast-drying paint made of pigment suspended in acrylic polymer emulsion and plasticizers, silicone oils, defoamers, stabilizers, or metal soaps. Most acrylic paints are water-based, but become water-resistant when dry. De ...
s. The term "watercolor" refers to paints that use water-soluble, complex carbohydrates as a binder. Originally (in the 16th to 18th centuries), watercolor binders were sugars and/or hide glues, but since the 19th century, the preferred binder is natural
gum arabic Gum arabic, also known as gum sudani, acacia gum, Arabic gum, gum acacia, acacia, Senegal gum, Indian gum, and by other names, is a natural gum originally consisting of the hardened sap of two species of the ''Acacia'' tree, ''Senegalia se ...
, with
glycerin Glycerol (), also called glycerine in British English and glycerin in American English, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids know ...
and/or
honey Honey is a sweet and viscous substance made by several bees, the best-known of which are honey bees. Honey is made and stored to nourish bee colonies. Bees produce honey by gathering and then refining the sugary secretions of plants (primar ...
as additives to improve plasticity and solubility of the binder, and with other chemicals added to improve product shelf life. The term " bodycolor" refers to paint that is opaque rather than transparent. It usually refers to opaque watercolor, known as
gouache Gouache (; ), body color, or opaque watercolor is a water-medium paint consisting of natural pigment, water, a binding agent (usually gum arabic or dextrin), and sometimes additional inert material. Gouache is designed to be opaque. Gouache ...
. Modern acrylic paints use an
acrylic resin 186 px, Polyhydroxyethylmethacrylate is a typical acrylate resin. An acrylic resin is a thermoplastic or thermosetting plastic substance typically derived from acrylic acid, methacrylic acid and acrylate monomers such as butyl acrylate and or ...
dispersion as a binder.


Commercial watercolors

Watercolor painters before the turn of the 18th century had to make paints themselves using pigments purchased from an
apothecary ''Apothecary'' () is a mostly archaic term for a medical professional who formulates and dispenses '' materia medica'' (medicine) to physicians, surgeons, and patients. The modern chemist (British English) or pharmacist (British and North Amer ...
or specialized "colorman", and mixing them with gum arabic or some other binder. The earliest commercial paints were small, resinous blocks that had to be wetted and laboriously "rubbed out" in water to obtain a usable color intensity. William Reeves started his business as a colorman around 1766. In 1781, he and his brother, Thomas Reeves, were awarded the Silver Palette of the Society of Arts, for the invention of the moist watercolor ''paint-cake'', a time-saving convenience, introduced in the "golden age" of English watercolor painting. The "cake" was immediately soluble when touched by a wet brush. Modern commercial watercolor paints are available in tubes, pans and liquids. The majority of paints sold today are in collapsible small metal tubes in standard sizes and formulated to a consistency similar to toothpaste by being already mixed with a certain water component. For use, this paste has to be further diluted with water. Pan paints (actually small dried cakes or bars of paint in an open plastic container) are usually sold in two sizes, full pans and half pans. Owing to modern industrial
organic chemistry Organic chemistry is a subdiscipline within chemistry involving the science, scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clay ...
, the variety, saturation, and permanence of artists' colors available today has been vastly improved. Since 2014, Golden Artist Colors makes a heavily pigmented line called ''QoR watercolors'' ('Quality of Results') that uses Aquazol as a binder. Correct and non-toxic
primary colors A set of primary colors or primary colours (see spelling differences) consists of colorants or colored lights that can be mixed in varying amounts to produce a gamut of colors. This is the essential method used to create the perception of a ...
are now present through the introduction of hansa yellow,
phthalo blue Copper phthalocyanine (CuPc), also called phthalocyanine blue, phthalo blue and many other names, is a bright, crystalline, synthetic blue pigment from the group of phthalocyanine dyes. Its brilliant blue is frequently used in paints and dyes. ...
and
quinacridone Quinacridone is an organic compound used as a pigment. Numerous derivatives constitute the quinacridone pigment family, which finds extensive use in industrial colorant applications such as robust outdoor paints, inkjet printer ink, tattoo ...
(PV 122). From such a set of three colors, in principle all others can be mixed, as in a classical technique no white is used. The modern development of pigments was not driven by artistic demand. The art materials industry is too small to exert any market leverage on global dye or pigment manufacture. With rare exceptions such as aureolin, all modern watercolor paints utilize pigments that have a wider industrial use. Paint manufacturers buy, by industrial standards very small, supplies of these pigments,
mill Mill may refer to: Science and technology * * Mill (grinding) * Milling (machining) * Millwork * Textile manufacturing, Textile mill * Steel mill, a factory for the manufacture of steel * List of types of mill * Mill, the arithmetic unit of the A ...
them with the vehicle, solvent, and additives, and package them. The milling process with inorganic pigments, in more expensive brands, reduces the particle size to improve the color flow when the paint is applied with water.


Transparency

In the partisan debates of the 19th-century English art world, gouache was emphatically contrasted to traditional watercolors and denigrated for its high hiding power or lack of "transparency"; "transparent" watercolors were exalted. The aversion to opaque paint had its origin in the fact that well into the 19th century
lead white White lead is the basic lead carbonate 2PbCO3·Pb(OH)2. It is a complex salt, containing both carbonate and hydroxide ions. White lead occurs naturally as a mineral, in which context it is known as hydrocerussite, a hydrate of cerussite. It wa ...
was used to increase the covering quality. That pigment tended to soon discolor into black under the influence of sulphurous air pollution, totally ruining the artwork.D. Kraaijpoel & C. Herenius. (2007) ''Het kunstschilderboek — handboek voor materialen en technieken'', Cantecleer, p. 187 The traditional claim that "transparent" watercolors gain "luminosity" because they function like a pane of stained glass laid on paper—the color intensified because the light passes through the pigment, reflects from the paper, and passes a second time through the pigment on its way to the viewer—is false. Watercolor paints typically do not form a cohesive paint layer, as do acrylic or oil paints, but simply scatter pigment particles randomly across the
paper Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, Textile, rags, poaceae, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre e ...
surface; the transparency is caused by the paper being visible between the particles.D. Kraaijpoel & C. Herenius. (2007) ''Het kunstschilderboek — handboek voor materialen en technieken'', Cantecleer, p. 183 Watercolors may appear more vivid than acrylics or oils because the pigments are laid down in a purer form, with few or no fillers (such as kaolin) obscuring the pigment colors. Typically, most or all of the gum binder will be absorbed by the paper, preventing the binder from changing the visibility of the pigment. The gum being absorbed does not decrease but increase the adhesion of the pigment to the paper, as its particles will then penetrate the fibres more easily. In fact, an important function of the gum is to facilitate the "lifting" (removal) of color, should the artist want to create a lighter spot in a painted area. Furthermore, the gum prevents
flocculation Flocculation, in the field of chemistry, is a process by which colloidal particles come out of suspension to sediment under the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. The action differs from ...
of the pigment particles.


See also

* Acrylic painting techniques *
History of painting The history of painting reaches back in time to artifacts and artwork created by pre-historic artists, and spans all cultures. It represents a continuous, though periodically disrupted, tradition from Antiquity. Across cultures, continents, and ...
* Ink wash painting *
Oil painting Oil painting is the process of painting with pigments with a medium of drying oil as the binder. It has been the most common technique for artistic painting on wood panel or canvas for several centuries, spreading from Europe to the rest ...
* :Watercolorists


Notes


References


History

* Andrew Wilton & Anne Lyles. ''The Great Age of British Watercolours (1750–1880)''. Prestel, 1993. * Anne Lyles & Robin Hamlyn. ''British watercolours from the Oppé Collection''. Tate Gallery Publishing, 1997. * Christopher Finch. ''American Watercolors''. Abbeville Press, 1991. ASIN B000IBDWGK * Christopher Finch. ''Nineteenth-Century Watercolors''. Abbeville Press, 1991. * Christopher Finch. ''Twentieth-Century Watercolors''. Abbeville Press, 1988. * Eric Shanes. Turner: ''The Great Watercolours''. Royal Academy of Arts, 2001. * Martin Hardie. ''Water-Colour Painting in Britain'' (3 volumes: I. The Eighteenth Century; II. The Romantic Period; III. The Victorian Period.). Batsford, 1966–1968. * Michael Clarke. ''The Tempting Prospect: A Social History of English Watercolours''. British Museum Publications, 1981. ASIN B000UCV0XO * Moore, Sean. ''Ultimate Visual Dictionary''. Dorling Kindersley, 1994.


Tutorials and Technique

* Rex Brandt. ''The Winning Ways of Watercolor: Basic Techniques and Methods of Transparent Watercolor in Twenty Lessons''. Van Nostrand Reinhold, 1973. * David Dewey. ''The Watercolor Book: Materials and Techniques for Today's Artist''. Watson-Guptill, 1995. * Donna Seldin Janis. ''Sargent Abroad: Figures and Landscapes''. Abbeville Press; 1st edition (October 1997). . * Charles LeClair. ''The Art of Watercolor'' (Revised and Expanded Edition). Watson-Guptill, 1999. * Royal Watercolour Society. ''The Watercolour Expert''. Cassell Illustrated, 2004. * John Ruskin. ''The Elements of Drawing'' 857 Watson-Guptill, 1991. (Reprints from other publishers are also available.) * Pip Seymour. ''Watercolour Painting: A Handbook for Artists''. Lee Press, 1997. * Stan Smith. ''Watercolor: The Complete Course''. Reader's Digest, 1995. * Curtis Tappenden. ''Foundation Course: Watercolour''. Cassell Illustrated, 2003. * Edgar A. Whitney. ''Complete Guide to Watercolor Painting''. Watson-Guptill, 1974. over Edition


Materials

* Ian Sidaway. ''The Watercolor Artist's Paper Directory''. North Light, 2000. * Jacques Turner. ''Brushes: A Handbook for Artists and Artisans''. Design Press, 1992. * Sylvie Turner. ''The Book of Fine Paper''. Thames & Hudson, 1998. * Michael Wilcox. ''The Wilcox Guide To The Best Watercolor Paints''. School of Colour Publications, 2000.


External links


American Watercolor Society

National Watercolor Society (USA)

Belgian Watercolor Institute
* {{DEFAULTSORT:Watercolor Painting Painting Painting techniques Watermedia