Kermes is a red dye derived from the dried bodies of the females of a scale insect in the genus Kermes , primarily Kermes vermilio . The Kermes insects are native in the Mediterranean region and are parasites living on the sap of the host plant, the Kermes oak (Quercus coccifera) and the Palestine oak (Quercus calliprinos). [1]
These insects were used as a red dye since antiquity by the ancient Egyptians, Mesopotamians, Indians, Greeks, Romans, and Iranians. The dye also served a number of ritual and practical purposes in the Hebrew Bible.
The kermes dye is a rich red, a crimson. It has good colour fastness in silk and wool. It was much esteemed in the medieval era for dyeing silk and wool, particularly scarlet cloth. Following the Columbian exchange it was superseded by the similar, and more easily obtained, cochineal.
Kermes ultimately derives from the Sanskrit word कृमिज or kṛmija meaning "worm-made". [2] This was adopted into Persian and later Arabic as قرمز qermez. The modern English word kermes was borrowed from the French term kermès.
Kermes dye is of ancient origin; jars of kermes have been found in a Neolithic cave-burial at Adaouste, northeast of Aix-en-Provence. [3] The early Egyptians made use of the kermes dye. [4]
In the Middle Ages, rich crimson and scarlet silks dyed with kermes in the new silk-weaving centers of Italy and Sicily exceeded the legendary Tyrian purple "in status and desirability". [5] The dyestuff was called "grain" (grana) in all Western European languages because the desiccated eggs resembled fine grains of wheat (or sand), [6] and they were mistaken for plants; [7] so textiles dyed with kermes were described as dyed in the grain. [8] Woollens were frequently dyed blue with woad before spinning and weaving, and then piece-dyed in kermes, producing a wide range colours from blacks and grays through browns, murreys, purples, and sanguines. [8] One source dated to the 12th-century notes that kermes dye adheres best to animal-based fibers (e.g. wool, silk, etc.), rather than to plant-based fibers (e.g. cotton, linen, etc.). [9]
By the 14th and early 15th century, brilliant full grain pure kermes scarlet was "by far the most esteemed, most regal" colour for luxury woollen textiles in the Low Countries, England, France, Spain and Italy. [6]
Following the Spanish conquest of the Aztec Empire, Mexican cochineal, which produced a stronger dye and could thus be used in smaller quantities, replaced kermes dyes in general use in Europe. [10] [11]
In the Bible, scarlet was one of three principal pigments used in the Temple curtain, [12] [13] appurtenances, [12] [14] and sacred vestments. [12] [15] In some cases scarlet wool threads were woven together with threads of other colors; [16] elsewhere a purely scarlet fabric was required. [17] In addition, scarlet-dyed yarn was thrown as an adjunct into the burning ashes of the Red heifer, [18] and was used as an adjunct in the purification ritual of lepers who had been healed. [19]
The English word for the biblical "scarlet" (Exodus 25:4, etc.) is a literal translation from the Septuagint (Koinē Greek : κόκκινον = kókkinon, meaning "scarlet"). The original Hebrew text (tola'at shani) translates to "scarlet worm", indicating that the scarlet color is derived from an insect, a requirement which was formalized in the Jerusalem Talmud (Kila'im 9:1 [32a]). [20] This insect, generally mistaken for a plant, was known in the Roman world as grani coccum = "the grain of scarlet." [21]
While production of the crimson or scarlet dye from the kermes scale insect had, traditionally, been an art preserved with medieval dyers, the practice seemed to have been lost for many centuries. [22] Late exponents of Jewish law were baffled by the Tosefta's ruling that tola'at shani (scarlet colored ritual wool) may only be made from the tola'at (worm-like aphid) which lives in the mountainous regions. [23] [24] The dye's crimson or scarlet-orange tinge is alluded to in an early rabbinic source, Pesikta Rabbati , where tola'at shani is said to be "neither red, nor green," but of an intermediate color. [25] Biblical exegete Saadia Gaon (882–942) wrote that the scarlet colored fabric was qirmiz (Arabic : قرمز), derived from the kermes insect [26] [27] and which produced a color ranging from Venetian scarlet to crimson. According to Saadia, the dye was applied to silk yarns. A rare 10th-century Arabic document was retrieved by Zohar Amar, from which he was able to reproduce the dye extract, using antique methods. [28]
In 2016, an archaeological excavation in the "Cave of Skulls" in the Judaean Desert uncovered a woven fabric that potentially used Kermes scarlet dye. Dated to the Middle Bronze Age, it is the earliest example found in Israel. In 2024, researchers, joined by Hebrew University, Bar-Ilan University, and the Israel Antiquities Authority published a paper in the Journal of Archaeological Science that this artifact was confirmed to be colored by the dye from the Kermes vermilio. [29] [30]
Out of the four kermes scale insects tested in Israel, the wingless female Kermes echinatus with her unhatched eggs still in her body yielded the brightest red colorant. [1] [31] The scale insect is first dried and ground to a powder. The dyestuff is then placed in a pot of water and cooked on a low heat, which turns the water red. [32] The water is then strained and is ready for use. [32] Those familiar with the dyeing technique have noted that before inserting the fabric into the bath containing the dye solution, the fabric is first dipped into a bath of dissolved alum, which, when added to the dye solution, gives to the fabric its bright reddish-orange color, besides serving as a mordant. [33] [34] Darker shades are achieved by repeating the dyeing process several times, having the fabric dry, and re-dyed. [35]
According to field research conducted by Amar and colleagues, the female K. echinatus insect, which has a camouflage color of grey to reddish-brown, "produces the dye pigment in both her body and in her eggs, only at the peak of her adulthood, which continues for no more than one month, around July and August." [36] [1] A delay in harvesting the scale insect with eggs may result in a significant reduction in dye production. [31] After collecting, the insects are first dried in the shade for a period of one week, ground to a powder, and then steeped in water for 45 minutes and which maintains a low-heated temperature of 60 to 80 °C (140 to 176 °F). To this hot bath is added the fabric to absorb the dye. Heating the dye solution to a temperature more than this is liable to destroy the pigment or to cause fading. [31] When alum is added to the dye substance as a mordant, a bright red-orange hue is obtained, which color is then made color-fast.
Chemical analysis of the dye extract shows a high percentage of kermesic acid (C16H10O8) (Ka; maximum at 480 nanometers [nm]) and flavokermesic acid (Fk; maximum at 432 nm). Wool dyed in an acid bath solution with kermes produced a red-orange hue, but without the acidic addition the color remained a brick red or dark red. [37] Other acid bath solutions produced a golden-yellow hue. [37]
Amar found that the host trees in the Land of Israel (viz. Quercus calliprinos) produced varied sizes of the scale insect Kermes echinatus, the largest of which being found in Israel's north, particularly in the Upper Galilee region and in the northern parts of the Golan Heights, which reached a mean size of 6.4–5 millimeters. [31] However, the scale insect's distribution was not uniform. Some trees were affected by the parasites, while others were not. [31] 1 kilogram (2.2 lb) of freshly harvested kermes scale insects loses about two-thirds of its weight when dried. [38] [31] The dried dyestuff is sold either in its raw form as kernels, as powder, or as briquettes. [38] Approximately 50,000 to 60,000 scale insects are needed to produce one kilogram of the dried dyestuff. [38] [31]
In the Hebrew Bible, scarlet was considered a striking and lively color, [39] and was used in priestly garments and other ritual items, [40] but could also symbolize sin. [41]
Scarlet was one of the chief colors used to decorate the bridal chamber in Jewish weddings, in which large colored sheets of scarlet overlaid with gold were hung. [42] [31]
As part of the Yom Kippur Temple service, a scarlet thread was tied to the horns of the scapegoat, before it was sent to the desert. [43] [44]
A dye is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. Dye is generally applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the fiber.
Purple is a color similar in appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the CMYK color model used in modern printing, purple is made by combining magenta pigment with either cyan pigment, black pigment, or both. In the RGB color model used in computer and television screens, purple is created by mixing red and blue light in order to create colors that appear similar to violet light.
Tyrian purple, also known as royal purple, imperial purple, or imperial dye, is a reddish-purple natural dye. The name Tyrian refers to Tyre, Lebanon, once Phoenicia. It is secreted by several species of predatory sea snails in the family Muricidae, rock snails originally known by the name Murex. In ancient times, extracting this dye involved tens of thousands of snails and substantial labour, and as a result, the dye was highly valued. The colored compound is 6,6'-dibromoindigo.
Crimson is a rich, deep red color, inclining to purple. It originally meant the color of the kermes dye produced from a scale insect, Kermes vermilio, but the name is now sometimes also used as a generic term for slightly bluish-red colors that are between red and rose. It is the national color of Nepal.
A mordant or dye fixative is a substance used to set dyes on fabrics. It does this by forming a coordination complex with the dye, which then attaches to the fabric. It may be used for dyeing fabrics or for intensifying stains in cell or tissue preparations. Although mordants are still used, especially by small batch dyers, they have been largely displaced in industry by directs.
Scarlet was a type of fine and expensive woollen cloth common in Medieval Europe. In the assessment of John Munro, 'the medieval scarlet was therefore a very high-priced, luxury, woollen broadcloth, invariably woven from the finest English wools, and always dyed with kermes, even if mixed with woad, and other dyestuffs. There is no evidence for the use of the term scarlet for any other textile, even though other textiles, especially silks, were also dyed with kermes.'
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no limbs, and are concealed underneath domed scales, extruding quantities of wax for protection. Some species are hermaphroditic, with a combined ovotestis instead of separate ovaries and testes. Males, in the species where they occur, have legs and sometimes wings, and resemble small flies. Scale insects are herbivores, piercing plant tissues with their mouthparts and remaining in one place, feeding on sap. The excess fluid they imbibe is secreted as honeydew on which sooty mold tends to grow. The insects often have a mutualistic relationship with ants, which feed on the honeydew and protect them from predators. There are about 8,000 described species.
Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. Dye molecules are fixed to the fiber by absorption, diffusion, or bonding with temperature and time being key controlling factors. The bond between the dye molecule and fiber may be strong or weak, depending on the dye used. Dyeing and printing are different applications; in printing, color is applied to a localized area with desired patterns. In dyeing, it is applied to the entire textile.
Scarlet is a bright red color, sometimes with a slightly orange tinge. In the spectrum of visible light, and on the traditional color wheel, it is one-quarter of the way between red and orange, slightly less orange than vermilion.
Textile printing is the process of applying color to fabric in definite patterns or designs. In properly printed fabrics the colour is bonded with the fibre, so as to resist washing and friction. Textile printing is related to dyeing but in dyeing properly the whole fabric is uniformly covered with one colour, whereas in printing one or more colours are applied to it in certain parts only, and in sharply defined patterns.
Kermes is a genus of scale insects in the order Hemiptera. They feed on the sap of oaks; the females produce a red dye, also called "kermes", that is the source of natural crimson. The word "kermes" is derived from Turkish qirmiz or kirmizi, "crimson", itself deriving from Persian *کرمست (*kermest) via Proto-Indo-Iranian *kŕ̥miš, from Proto-Indo-European *kʷŕ̥mis (“worm”).
Polish cochineal, also known as Polish carmine scales, is a scale insect formerly used to produce a crimson dye of the same name, colloquially known as "Saint John's blood". The larvae of P. polonica are sessile parasites living on the roots of various herbs – especially those of the perennial knawel – growing on the sandy soils of Central Europe and other parts of Eurasia. Before the development of aniline, alizarin, and other synthetic dyes, the insect was of great economic importance, although its use was in decline after the introduction of Mexican cochineal to Europe in the 16th century. Historically earlier was used Armenian cochineal scale insect, Porphyrophora hamelii, which is in a same taxonomic family Porphyrophora of the Polish cochineal and in different taxonomic family from cochineal found in the Americas.
Lincoln green is the colour of dyed woollen cloth formerly originating in Lincoln, England, a major cloth town during the high Middle Ages. The dyers of Lincoln, known for colouring wool with woad to give it a strong blue shade, created the eponymous Lincoln green by overdyeing this blue wool with yellow weld or dyers' broom. Other colours like "Coventry blue" and "Kendal green" were linked to the dyers of different English towns.
The cochineal is a scale insect in the suborder Sternorrhyncha, from which the natural dye carmine is derived. A primarily sessile parasite native to tropical and subtropical South America through North America, this insect lives on cacti in the genus Opuntia, feeding on plant moisture and nutrients. The insects are found on the pads of prickly pear cacti, collected by brushing them off the plants, and dried.
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, and wood—and other biological sources such as fungi.
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.
Wet Processing Engineering is one of the major streams in Textile Engineering or Textile manufacturing which refers to the engineering of textile chemical processes and associated applied science. The other three streams in textile engineering are yarn engineering, fabric engineering, and apparel engineering. The processes of this stream are involved or carried out in an aqueous stage. Hence, it is called a wet process which usually covers pre-treatment, dyeing, printing, and finishing.
The Armenian cochineal, also known as the Ararat cochineal or Ararat scale, is a scale insect indigenous to the Ararat plain and Aras (Araks) River valley in the Armenian Highlands, including East of Turkey. It was formerly used to produce an eponymous crimson carmine dyestuff known in Armenia as vordan karmir and historically in Persia as kirmiz. The species is critically endangered within Armenia.
The color red is the longest wavelength of light discernable to the human eye, with a range of between 620 and 750 nanometers. Red was commonly the first color term added to languages after the colors of black and white. As well as this, the color was the first color to be used by humans. Because of this, certain languages used the word for the color red to simply be the word for any color visible to the human eye.
Red pigments are materials, usually made from minerals, used to create the red colors in painting and other arts. The color of red and other pigments is determined by the way it absorbs certain parts of the spectrum of visible light and reflects the others. The brilliant opaque red of vermillion, for example, results because vermillion reflects the major part of red light, but absorbs the blue, green and yellow parts of white light.
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