# Glossary of dyeing terms

    This glossary contains terms specific to dyeing. For terms used in the creation or manufacturing of textiles, including spinning, knitting, weaving, and individual fabrics and finishing processes, see Glossary of textile manufacturing. For terms used in sewing and tailoring, see Glossary of sewing terms. For biological and medical applications of dyeing, see Staining and Biological Stain Commission.
Dyeing is the craft of imparting colors to textiles in loose fiber, yarn, cloth or garment form by treatment with a dye. Archaeologists have found evidence of textile dyeing with natural dyes dating back to the Neolithic period. In China, dyeing with plants, barks and insects has been traced back more than 5,000 years. Natural insect dyes such as Tyrian purple and kermes and plant-based dyes such as woad, indigo and madder were important elements of the economies of Asia and Europe until the discovery of man-made synthetic dyes in the mid-19th century. Synthetic dyes quickly superseded natural dyes for the large-scale commercial textile production enabled by the Industrial Revolution, but natural dyes remained in use by traditional cultures around the world.
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## A
### aal

    Aal or Indian mulberry (Morinda tinctoria) is the source of the morindone dye sold under the trade name "Suranji". It is extensively cultivated in India for the dyeing of cotton, silk and wool in shades of red, chocolate or purple, dependent on the mordant used.

### adjective

    Adjective dyes are those dyes that require use of a mordant to bind the color to the fiber.

### alkanet

    Alkanet or dyer's bugloss (Alkanna tinctoria) is a traditional plant source of red dye.

### alum

    Alum (aluminum sulfate) is a naturally occurring basic mordant widely used in the ancient world.

### añil

    Añil (Indigofera suffruticosa) is an indigo dye-bearing plant of Central and South America.

### aniline

    Aniline dyes or basic dyes are a class of synthetic dyes derived from coal tar, first discovered in the 19th century. These dyes produce brilliant colors that work well with animal fibers, especially silk. Because of poor colorfastness, aniline dyes are seldom used with textiles today.

### archil

    Archil is a dye produced from the lichen Roccella tinctoria which also produces cudbear and litmus.
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## B
### bloodroot

    Bloodroot (Sanguinaria canadensis) is a flowering plant native to eastern North America; its root is the source for a red dye used by Native Americans.

### brazilwood

    Brazilwood is a red-brown dye from either of two related trees. The original brazilwood, sappan wood (Caesalpinia sappan), is native to India and was exported to China by 900 BCE and to Europe via the Muslim world by the Early Middle Ages. Portuguese explorers discovered a similar tree growing in the New World and named the surrounding country Brazil. This tree is the Brazilwood (Caesalpinia echinata) used by contemporary craft dyers.

### black walnut

    Black walnut (Juglans nigra) is a North American tree used to produce a deep brown dye approaching black.
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## C
### carmine

    Carmine is a crimson-colored dye derived from cochineal (Dactylopius coccus), a scale insect of Central and North America.

### cochineal

    Cochineal (Dactylopius coccus) is a scale insect of Central and North America from which the crimson-coloured dye carmine is derived.

### colorfast

    Colorfast dyes are dyes resistant to shifts in hue, fading, or bleeding (transfer of dye) when wet.

### copperas

    Copperas is the dyer's name for ferrous sulfate, an iron mordant used to sadden or reduce the saturation of colors.

### crimson

    Crimson is a deep red dye or color derived from the word kermes.

### crottle

    Crottle is a traditional Scottish dye derived from lichens of the genus Parmelia, Parmelia saxatilis and Parmelia omphalodes, which give deep red- or purple-brown and rusty orange respectively. These lichens are the origin of the distinctive scent of naturally dyed Harris Tweed.

### cudbear

    Cudbear is a purple dye from the lichen Roccella tinctoria which also produces archil and litmus. Cudbear is one of the few natural dyes to be credited to a named individual, Dr Cuthbert Gordon of Scotland, who patented the process of its production in 1758.

### cutch

    Cutch is an ancient brown dye from the wood of acacia trees, particularly Acacia catechu, used in India for dyeing cotton. Cutch gives gray-browns with an iron mordant and olive-browns with copper.
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## D
### direct dye

    Same as substantive.

### dye

    Dyes are color-bearing organic compounds that can be dissolved in water or another liquid so that they will penetrate fibers.

### dyebath

    A dyebath is a solution of dye and water or other liquid in which textiles are dyed.

### dyed in the wool

    Dyed in the wool or dyed in the fleece refers to fibers that are dyed prior to spinning. Compare to dyed in the hank or yarn-dyed; piece-dyed (dyed after weaving); and garment-dyed, dyed after sewing or knitting.

### dyer's broom

    Dyer's broom (Genista tinctoria), also known as dyer's greenweed or dyer's greenwood, is a garden plant used to produce yellow dyes.

### dyer's bugloss

    Dyer's bugloss (Alkanna tinctoria) is the source of the red dye alkanet.

### dyer's knotweed

    Dyer's knotweed (Polygonum tinctorum) is an indigo-bearing dye plant native to Japan and the coasts of China.

### dyer's mulberry tree

    Dyer's mulberry tree (Maclura tinctoria) is a New World tree from which the dye old fustic is derived.

### dyer's rocket

    Same as weld.

### dyestuff

    Dyestuff is any raw material that releases a dye.

### dyeworks

    A dyeworks, dye-works, or dye works is a workshop for dyeing fiber, yarn, or cloth.
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## F
### fast

    Same as colorfast

### fugitive

    Fugitive colors are prone to fading when exposed to sunlight (fugitive to light) or washing, as opposed to colorfast.

### fustic

    Fustic or old fustic is a brilliant yellow dye derived from the inner bark of the dyer's mulberry tree Maclura tinctoria of the West Indies and Mexico.
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## G
### gall nut

    Gall nuts, nutgalls or oak apples are a tannin-rich growth on oak trees produced by an infection of the insect Cynips gallae tinctoriae, used as a dye and a mordant. Commercial gall nuts are harvested from the Gall Oak (Quercus lusitanica), also called Lusitanian Oak or Dyer's Oak, native to Morocco, Portugal, and Spain.

### garment-dyed

    Dyed after sewing or knitting.

### grain

    Grain was the Medieval word for the red insect dye kermes. Dyed in the grain refers to dyed with kermes, or kermes in combination with another dye, producing colors such as crimson in grain, violet in grain.

## I
### Indian madder

    Indian madder or munjeet (Rubia cordifolia) is native to the Himalayas and other mountains of Asia and Japan. Munjeet was an important dye for the Asian cotton industry and is still used by craft dyers in Nepal.

### indigo

    Indigo is a deep blue derived from any of the indigo dye-bearing plants, primarily those in the genus Indigofera, especially true indigo (Indigofera tinctoria, also known as Indigofera sumatrana).
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## K
### Kendal green

    Kendal green is a coarse gray-green woolen cloth created by mordanting wool in alum, dyeing it yellow with dyer's broom, and then overdyeing the cloth blue with woad (or later, indigo). It is named for Kendal, Cumbria (formerly part of Westmorland) where the cloth was made from the Middle Ages.

### kermes

    Kermes is a natural dye derived from the dried unlaid eggs of the females of a scale insect in the genus Kermes, primarily Kermes vermilio, distantly related to the cochineal insect, and found on species of oak (especially Kermes oak) near the Mediterranean.
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## L
### Lincoln green

    Lincoln green is a warm olive green dye produced in Lincoln in the Middle Ages, made by dyeing wool blue with woad, then overdyeing it yellow with weld or dyers' broom.

### logwood

    Logwood (Haematoxylum campechianum) is a dyewood native to Mexico and Central America which produces a fast black in combination with a ferrous sulfate (copperas) mordant. Despite changing fashions in color, logwood was the most widely used dye by the 19th century, providing the sober blacks of formal and mourning clothes.
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## M
### madder

    Madder (rubia tinctoria) and related plants of the Rubia family are a source of good red dyes containing alizarin and purpurin. Madder was a dye of commercial importance in Europe, being cultivated in the Netherlands and France until the market collapsed following the development of synthetic alizarin dye in 1869.

### mauveine

    Mauveine or aniline purple was the first synthetic organic chemical dye.

### mignonette

    Same as weld.

### mordant

    A mordant is a chemical used in combination with dye to "fix" the color in the textile fibers. By using different mordants, dyers can often obtain a variety of colors and shades from the same dye.

### munjeet

    Same as Indian madder.
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## N
### natal indigo

    Natal indigo (Indigofera arrecta) is an indigo dye-bearing plant of Africa, but chiefly cultivated in India.

### natural dye

    Natural dyes are dyes derived from animals, plants, minerals, fungi and lichens.

### nutgall

    Same as gall nut.
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## O
### oak gall

    Same as gall nut.

### ochre

    Ochre is an iron oxide pigment from clay that can be used to dye textiles a ruddy or reddish-brown color. Evidence of textile dyeing with ochre has been dated to the Neolithic.
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## P
### Phoenician red

    Phoenician red is a red dye related to Tyrian purple or royal purple, extracted from several genera of sea snails, primarily Murex brandaris the spiny dye-murex (currently known as Bolinus brandaris).

### pigment

    Pigments are insoluble color particles that may be attached to the surface of cloth using a binding agent. Solutions of binders and pigments are called pigment dyes.

### Polish cochineal

    Polish cochineal or Polish grains is a crimson dye colloquially known as "Saint John's blood", produced in Eastern Europe during the Middle Ages from the scale insect Porphyrophora polonica.

### potash

    Potash (potassium carbonate) is a common mordant made by leaching wood ashes and evaporating the solution.

### prepared for dyeing

    A fabric or garment which is prepared for dyeing, abbreviated PFD, is specially made to be dyed. PFD fabrics have been desized, scoured, and fully bleached, but have been processed without optical brighteners or softeners which can interfere with dye uptake.

### puccoon

    Same as bloodroot.
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## Q
### quercitron

    Quercitron is a mustard yellow natural dye obtained from the bark of the Eastern Black Oak (Quercus velutina), a forest tree indigenous in North America.
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## R
### reactive dye

    Reactive dyes are a class of synthetic dyes that first appeared commercially in 1956, after their invention in 1954 by Rattee and Stephens at the Imperial Chemical Industries Dyestuffs Division site in the United Kingdom. Reactive dyes are used primarily to dye natural fibers and cellulose fibers such as rayon.

### resist dyeing

    Resist dyeing and the related resist printing are terms for a number of traditional methods of dyeing textiles with patterns. Methods are used to "resist" or prevent the dye from reaching all the cloth, thereby creating a pattern and ground. The most common forms use wax, some type of paste, or a mechanical resist that manipulates the cloth such as tying or stitching. Resist techniques include screen printing, tie-dye, ikat, and batik.

### royal purple

    Tyrian purple or royal purple is a purple-red dye which is extracted from several genera of sea snails, primarily Murex brandaris the spiny dye-murex (currently known as Bolinus brandaris). Murex dye was greatly prized in antiquity because it did not fade, rather it became brighter and more intense with weathering and sunlight.

### rubia

    Rubia is a genus of plants that are sources of the red dye madder.
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## S
### safflower

    Safflower (Carthamus tinctorius) is a flowering plant native to Asia that produces a substantive yellow dye for natural fibers. Dried safflower blossoms can be used to produce yellow, mustard, khaki, olive green and red colors. Cotton tape dyed red with safflower was formerly used to tie up government papers in Britain, giving rise to the term red tape.

### saffron

    Saffron is a spice derived from the flower of the saffron crocus (Crocus sativus) that produces a golden-yellow carotenoid dye called crocin.

### Saint John's Blood

    Saint John's Blood is a colloquial name for Polish cochineal.

### Saxon blue

    Saxon blue or Saxony blue is an 18th century dye made from a solution of indigo in concentrated sulfuric acid.

### Saxon green

    Saxon green or Saxony green is a bright green dye of the 18th century produced using indigo and fustic.

### substantive

    Substantive dyes are dyes that produce color without the use of a mordant. Examples include indigo dye and archil.

### sumac(h)

    Various species of sumac or sumach, especially Elm-Leaved Sumach (Rhus coriaria) or Tanner's Sumach of southern Europe and Staghorn Sumac (Rhus typhina) of eastern North America, are rich sources of tannins and are used as dyes and mordants.
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## T
### tannin

    Tannin from oak bark or gall nuts is used as a mordant.

### tin

    Stannous chloride, a metallic salt of tin, is used as a mordant to brighten colors.

### Turkey red

    Turkey red was a strong, very fast red dye for cotton obtained from madder root via a complicated multistep process involving "sumac and oak galls, calf's blood, sheep's dung, oil, soda, alum, and a solution of tin." Turkey red was developed in India and spread to Turkey. Greek workers familiar with the methods of its production were brought to France in 1747, and Dutch and English spies soon discovered the secret. A sanitized version of Turkey red was being produced in Manchester by 1784.

### Tyrian purple

    Tyrian purple or royal purple is a purple-red dye which is extracted from several genera of sea snails, primarily Murex brandaris the spiny dye-murex (currently known as Bolinus brandaris). Murex dye was greatly prized in antiquity because it did not fade, rather it became brighter and more intense with weathering and sunlight.
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## W
### weld

    Weld (Reseda luteola), also called mignonette or dyer's rocket, was an important yellow dye of the ancient Mediterranean and Europe.

### woad

    Woad (Isatis tinctoria) is an indigo dye-bearing indigenous plant of Assyria and the Levant which has been grown in Northern Europe over 2,000 years as a source of blue dye. Woad was carried to New England in the 17th century and used extensively in America until native stands of indigo were discovered in Florida and the Carolinas.
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## Y
### young fustic

    Young fustic is a yellow dye derived from the wood of the Eurasian smoketree (Cotinus coggygria).
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