digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

Four of the most important domesticated silk moths. Top to bottom:
Bombyx mori, Hyalophora cecropia, Antheraea pernyi, Samia cynthia.
From Meyers Konversations-Lexikon (1885-1892)
This article is about a natural fibre and the textile woven from it. For other uses, see Silk (disambiguation).
"Chinese silk" redirects here. For the Chinese silk chicken, see Silkie.
"Pure silk" redirects here. For women's professional golf tournament, see Pure Silk-Bahamas LPGA Classic.
A silk-producing raspy cricket.

Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and produced by certain insect larvae to form cocoons.[1] The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture). The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors.

Silks are produced by several other insects, but generally only the silk of moth caterpillars has been used for textile manufacturing. There has been some research into other silks, which differ at the molecular level.[2] Many silks are mainly produced by the larvae of insects undergoing complete metamorphosis, but some adult insects such as webspinners produce silk, and some insects such as raspy crickets produce silk throughout their lives.[3] Silk production also occurs in Hymenoptera (bees, wasps, and ants), silverfish, mayflies, thrips, leafhoppers, beetles, lacewings, fleas, flies and midges.[2] Other types of arthropod produce silk, most notably various arachnids such as spiders (see spider silk).

Etymology[edit]

The word silk comes Old English sioloc, from Greek serikos, silken, ultimately from an Asian source (cf. Chinese si "silk", Manchurian sirghe, Mongolian sirkek).[4]

History[edit]

Main article: History of silk

Wild silk[edit]

Woven silk textile from tomb no 1. at Mawangdui in Changsha, Hunan province, China, from the Western Han Dynasty, 2nd century BC

A variety of wild silks, produced by caterpillars other than the mulberry silkworm, have been known and used in China, South Asia, and Europe since ancient times. However, the scale of production was always far smaller than that of cultivated silks. There are several reasons for this: firstly, they differ from the domesticated varieties in colour and texture and are therefore less uniform; secondly, cocoons gathered in the wild have usually had the pupa emerge from them before being discovered so the silk thread that makes up the cocoon has been torn into shorter lengths; and thirdly, many wild cocoons are covered in a mineral layer that stymies attempts to reel from them long strands of silk.[5] Thus previously the only way to obtain silk suitable for spinning into textiles in areas where commercial silks are not cultivated is by tedious and labor-intensive carding.

Commercial silks originate from reared silkworm pupae which are bred to produce a white colored silk thread with no mineral on the surface. The pupae are killed by either dipping them in boiling water before the adult moths emerge or by piercing them with a needle. These factors all contribute to the ability of the whole cocoon to be unravelled as one continuous thread, permitting a much stronger cloth to be woven from the silk. Wild silks also tend to be more difficult to dye than silk from the cultivated silkworm.[6][7] A technique known as demineralizing allows the mineral layer around the cocoon to be removed,[8] leaving only variability in color as a barrier from creating a commercial silk industry based on wild silks in parts of the world where wild silkmoths thrive, such as Africa and South America.

Genetic modification of domesticated silkworms is used to facilitate the production of more useful types of silk.[9]

China[edit]

A painting depicting women inspecting silk, early 12th century, ink and color on silk, by Emperor Huizong of Song.
Portrait of a silk merchant in Guangzhou, Qing dynasty, from Peabody Essex Museum

Silk fabric was first developed in ancient China,[10] with some of the earliest examples found as early as 3500 BC.[11] Legend gives credit for developing silk to a Chinese empress, Leizu (Hsi-Ling-Shih, Lei-Tzu). Silks were originally reserved for the Emperors of China for their own use and gifts to others, but spread gradually through Chinese culture and trade both geographically and socially, and then to many regions of Asia. Silk rapidly became a popular luxury fabric in the many areas accessible to Chinese merchants because of its texture and lustre. Silk was in great demand, and became a staple of pre-industrial international trade. In July 2007, archeologists discovered intricately woven and dyed silk textiles in a tomb in Jiangxi province, dated to the Eastern Zhou Dynasty roughly 2,500 years ago.[12] Although historians have suspected a long history of a formative textile industry in ancient China, this find of silk textiles employing "complicated techniques" of weaving and dyeing provides direct evidence for silks dating before the Mawangdui-discovery and other silks dating to the Han Dynasty (202 BC-220 AD).[12]

The first evidence of the silk trade is the finding of silk in the hair of an Egyptian mummy of the 21st dynasty, c.1070 BC.[13] The silk trade reached as far as the Indian subcontinent, the Middle East, Europe, and North Africa. This trade was so extensive that the major set of trade routes between Europe and Asia came to be known as the Silk Road.

The Emperors of China strove to keep knowledge of sericulture secret to maintain the Chinese monopoly. Nonetheless sericulture reached Korea with technological aid from China around 200 BC, the ancient Kingdom of Khotan by AD 50,[14] and India by AD 140.[15]

In the ancient era, silk from China was the most lucrative and sought-after luxury item traded across the Eurasian continent,[16] and many civilizations, such as the ancient Persians, benefited economically from trade.[16]

India[edit]

Silk Sari Weaving at Kanchipuram

Silk, known as "Paat" in Eastern India, Pattu in southern parts of India and Resham in North India has a long history in India. Recent archaeological discoveries in Harappa and Chanhu-daro suggest that sericulture, employing wild silk threads from native silkworm species, existed in South Asia during the time of the Indus Valley Civilization dating between 2450 BC and 2000 BC, while "hard and fast evidence" for silk production in China dates back to around 2570 BC.[17][18] Shelagh Vainker, a silk expert at the Ashmolean Museum in Oxford, sees evidence for silk production in China "significantly earlier" than 2500–2000 BC, however suggests "people of the Indus civilization either harvested silkworm cocoons or traded with people who did, and that they knew a considerable amount about silk."[17] India is the second largest producer of silk in the world after China. About 97% of the raw silk comes from five Indian states namely, Andhra Pradesh, Karnataka, Jammu and Kashmir, Tamil Nadu and West Bengal.[19] North Bangalore regions of Muddenahalli and Kanivenarayanapura, the upcoming site of a $20 million "Silk City" Ramanagara and Mysore contribute to a majority of silk production in Karnataka.[20]

Antheraea assamensis, the endemic species of state of Assam, India
A traditional Banarasi sari with gold brocade

In Tamil Nadu, mulberry cultivation is concentrated in Coimbatore, Erode, Tiruppur, Salem and Dharmapuri districts. Hyderabad, Andhra Pradesh and Gobichettipalayam, Tamil Nadu were the first locations to have automated silk reeling units in India.[21]


India is also the largest consumer of silk in the world. The tradition of wearing silk sarees for marriages and other auspicious ceremonies is a custom in Assam and southern parts of India. Silk is considered as a symbol of royalty and historically, silk was used primarily by the upper classes. Silk garments and sarees produced in Kanchipuram, Pochampally, Dharmavaram, Mysore, Arani in the south, Banaras in the north, Murshidabad in the east are well recognized. In the northeastern state of Assam, three different types of silk are produced, collectively called Assam silk: Muga, Eri and Pat silk. Muga, the golden silk, and Eri are produced by silkworms that are native only to Assam.

Thailand[edit]

Main article: Thai silk

Silk is produced year round in Thailand by two types of silkworms, the cultured Bombycidae and wild Saturniidae. Most production is after the rice harvest in the southern and northeast parts of the country. Women traditionally weave silk on hand looms, and pass the skill on to their daughters as weaving is considered to be a sign of maturity and eligibility for marriage. Thai silk textiles often use complicated patterns in various colours and styles. Most regions of Thailand have their own typical silks. A single thread filament is too thin to use on its own so women combine many threads to produce a thicker, usable fiber. They do this by hand-reeling the threads onto a wooden spindle to produce a uniform strand of raw silk. The process takes around 40 hours to produce a half kilogram of Thai silk.

Many local operations use a reeling machine for this task, but some silk threads are still hand-reeled. The difference is that hand-reeled threads produce three grades of silk: two fine grades that are ideal for lightweight fabrics, and a thick grade for heavier material.

The silk fabric is soaked in extremely cold water and bleached before dyeing to remove the natural yellow coloring of Thai silk yarn. To do this, skeins of silk thread are immersed in large tubs of hydrogen peroxide. Once washed and dried, the silk is woven on a traditional hand operated loom.[22]

Ancient Mediterranean[edit]

The Gunthertuch, an 11th-century silk celebrating a Byzantine emperor's triumph

In the Odyssey, 19.233, when Odysseus, while pretending to be someone else, is questioned by Penelope about her husband's clothing, he says that he wore a shirt "gleaming like the skin of a dried onion" (varies with translations, literal translation here)[23] which could refer to the lustrous quality of silk fabric. The Roman Empire knew of and traded in silk, and Chinese silk was the most highly priced luxury good imported by them.[16] During the reign of emperor Tiberius, sumptuary laws were passed that forbade men from wearing silk garments, but these proved ineffectual.[24] Despite the popularity of silk, the secret of silk-making only reached Europe around AD 550, via the Byzantine Empire. Legend has it that monks working for the emperor Justinian I smuggled silkworm eggs to Constantinople in hollow canes from China. All top-quality looms and weavers were located inside the Great Palace complex in Constantinople and the cloth produced was used in imperial robes or in diplomacy, as gifts to foreign dignitaries. The remainder was sold at very high prices.

Middle East[edit]

Purchasing silkworm cocoons in Antioch, circa 1895.

In Islamic teachings, Muslim men are forbidden to wear silk. Many religious jurists believe the reasoning behind the prohibition lies in avoiding clothing for men that can be considered feminine or extravagant.[25] There are disputes regarding the amount of silk a fabric can consist of (e.g., whether a small decorative silk piece on a cotton caftan is permissible or not) for it to be lawful for men to wear but the dominant opinion of most Muslim scholars is that the wearing of silk by men is forbidden. Modern attire has raised a number of issues, including (for instance) the permissibility of wearing silk neckties, which are masculine articles of clothing.

Despite injunctions against silk for men, silk has retained its popularity in the Islamic world because of its permissibility for women. The Muslim Moors brought silk with them to Spain during their conquest of the Iberian Peninsula.

Medieval and modern Europe[edit]

Silk satin leaf, wood sticks and guards, c. 1890


Italy was the most important producer of silk during the Medieval age. The first center to introduce silk production to Italy was the city of Catanzaro during the 11th century in the region of Calabria. The silk of Catanzaro supplied almost all of Europe and was sold in a large market fair in the port of Reggio Calabria, to Spanish, Venetians, Genovese and Dutch merchants. Catanzaro became lace capital of the world with a large silkworm breeding facility that produced all the laces and linens used in the Vatican. The city was world famous for its fine fabrication of silks, velvets, damasks and brocades.[26][27][28]

Another notable center was the Italian city-state of Lucca which largely financed itself through silk-production and silk-trading, beginning in the 12th century. Other Italian cities involved in silk production were Genoa, Venice and Florence.

The Silk Exchange in Valencia from the 15th century, where previously in 1348 also perxal (percale) was traded as some kind of silk, dramatically illustrates the power and wealth of one of the great Mediterranean mercantile cities.[29][30]

In France, since the 15th century silk production has been centered around the city of Lyons where many mechanic tools for mass production were first introduced in the 17th century.

James I attempted to establish silk production in England, purchasing and planting 100,000 mulberry trees, some on land adjacent to Hampton Court Palace, but they were of a species unsuited to the silk worms, and the attempt failed. in 1732 John Guardivaglio set up a silk throwing enterprise at Logwood mill in Stockport, and in 1744, Burton Mill was erected in Macclesfield and in 1753 Old Mill was built in Congleton.[31] These three towns remained the centre of the English silk throwing industry until silk throwing was replaced by silk waste spinning. British enterprise also established silk filature in Cyprus in 1928. In England in the mid 20th century, raw silk was produced at Lullingstone Castle in Kent. Silkworms were raised and reeled under the direction of Zoe Lady Hart Dyke. Production started elsewhere[where?] later.[when?]


Yếm- the traditional silken bra in Vietnam

North America[edit]

King James I introduced silk-growing to the American colonies around 1619, ostensibly to discourage tobacco planting. The Shakers in Kentucky adopted the practice. In the 19th century a new attempt at a silk industry began with European-born workers in Paterson, New Jersey, and the city became a US silk center. Manchester, Connecticut emerged as center of the silk industry in America from the late 19th through the mid-20th century. The Cheney Brothers Historic District showcases mills refurbished as apartments and includes nearby museums.

World War II interrupted the silk trade from Asia, and silk prices increased dramatically.[35] US industry began to look for substitutes, which led to the use of synthetics such as nylon. Synthetic silks have also been made from lyocell, a type of cellulose fiber, and are often difficult to distinguish from real silk (see spider silk for more on synthetic silks).

Malaysia[edit]

In Terengganu, which is now part of Malaysia, second generation of silkworm was being imported as early as 1764 for its silk textile industry, especially songket.[36] However, since the 1980s, Malaysia is no longer engaged in sericulture but does only plant mulberry trees.

Vietnam[edit]

In Vietnamese legend, silk had appeared at the sixth dynasty of Hung Vuong.

Production process[edit]

The entire production process of silk can be divided into several steps which are typically handled by different entities. Extracting raw silk starts by cultivating the silkworms on Mulberry leaves. Once the worms start pupating in their cocoons, these are dissolved in boiling water in order for individual long fibres to be extracted and fed into the spinning reel.[37]

Properties[edit]

Models in silk dresses at the MoMo Falana fashion show

Physical properties[edit]

Silk fibers from the Bombyx mori silkworm have a triangular cross section with rounded corners, 5-10 μm wide. The fibroin-heavy chain is composed mostly of beta-sheets, due to a 59-mer amino acid repeat sequence with some variations.[38] The flat surfaces of the fibrils reflect light at many angles, giving silk a natural shine. The cross-section from other silkworms can vary in shape and diameter: crescent-like for Anaphe and elongated wedge for tussah. Silkworm fibers are naturally extruded from two silkworm glands as a pair of primary filaments (brin), which are stuck together, with sericin proteins that act like glue, to form a bave. Bave diameters for tussah silk can reach 65 μm. See cited reference for cross-sectional SEM photographs.[39]

Raw silk of domesticated silk worms, showing its natural shine.

Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers.

Silk is one of the strongest natural fibers but loses up to 20% of its strength when wet. It has a good moisture regain of 11%. Its elasticity is moderate to poor: if elongated even a small amount, it remains stretched. It can be weakened if exposed to too much sunlight. It may also be attacked by insects, especially if left dirty.

One example of the durable nature of silk over other fabrics is demonstrated by the recovery in 1840 of silk garments from a wreck of 1782: 'The most durable article found has been silk; for besides pieces of cloaks and lace, a pair of black satin breeches, and a large satin waistcoat with flaps, were got up, of which the silk was perfect, but the lining entirely gone ... from the thread giving way ... No articles of dress of woollen cloth have yet been found.'[40]

Silk is a poor conductor of electricity and thus susceptible to static cling.

Unwashed silk chiffon may shrink up to 8% due to a relaxation of the fiber macrostructure, so silk should either be washed prior to garment construction, or dry cleaned. Dry cleaning may still shrink the chiffon up to 4%. Occasionally, this shrinkage can be reversed by a gentle steaming with a press cloth. There is almost no gradual shrinkage nor shrinkage due to molecular-level deformation.

Natural and synthetic silk is known to manifest piezoelectric properties in proteins, probably due to its molecular structure.[41]

Silkworm silk was used as the standard for the denier, a measurement of linear density in fibers. Silkworm silk therefore has a linear density of approximately 1 den, or 1.1 dtex.

Comparison of silk fibers[42] Linear Density(dtex) Diameter (μm) Coeff. Variation
Moth: Bombyx mori 1.17 12.9 24.8%
Spider: Argiope aurentia 0.14 3.57 14.8%

Chemical properties[edit]

Silk emitted by the silkworm consists of two main proteins, sericin and fibroin, fibroin being the structural center of the silk, and serecin being the sticky material surrounding it. Fibroin is made up of the amino acids Gly-Ser-Gly-Ala-Gly-Ala and forms beta pleated sheets. Hydrogen bonds form between chains, and side chains form above and below the plane of the hydrogen bond network.

The high proportion (50%) of glycine, which is a small amino acid, allows tight packing and the fibers are strong and resistant to breaking. The tensile strength is due to the many interceded hydrogen bonds, and when stretched the force is applied to these numerous bonds and they do not break.

Silk is resistant to most mineral acids, except for sulfuric acid, which dissolves it. It is yellowed by perspiration. Chlorine bleach will also destroy silk fabrics.

Uses[edit]

Silk filaments being unravelled from silk cocoons, Cappadocia, Turkey, 2007.
Lamellar scaffold prepared from silk fibroin for inter vertebral disc tissue engineering. This lamellar structure mimic the structural environment of IVD.

Silk's absorbency makes it comfortable to wear in warm weather and while active. Its low conductivity keeps warm air close to the skin during cold weather. It is often used for clothing such as shirts, ties, blouses, formal dresses, high fashion clothes, lining, lingerie, pajamas, robes, dress suits, sun dresses and Eastern folk costumes. Silk's attractive lustre and drape makes it suitable for many furnishing applications. It is used for upholstery, wall coverings, window treatments (if blended with another fiber), rugs, bedding and wall hangings.[citation needed] While on the decline now, due to artificial fibers, silk has had many industrial and commercial uses, such as in parachutes, bicycle tires, comforter filling and artillery gunpowder bags.[citation needed]

Fabrics that are often made from silk include charmeuse, habutai, chiffon, taffeta, crepe de chine, dupioni, noil, shantung, tussah, and shantung, among others.

A special manufacturing process removes the outer irritant sericin coating of the silk, which makes it suitable as non-absorbable surgical sutures. This process has also recently led to the introduction of specialist silk underclothing for people with eczema where it can significantly reduce it.[43][44] New uses and manufacturing techniques have been found for silk for making everything from disposable cups to drug delivery systems and holograms.[45] To produce 1 kg of silk, 104 kg of mulberry leaves must be eaten by 3000 silkworms. It takes about 5000 silkworms to make a pure silk kimono.[46]:104 The construction of silk is called sericulture. The major silk producers are China (54%) and India (14%).[47]

Top Ten Cocoons (Reelable) Producers — 2005
Country Production (Int $1000) Footnote Production (1000 kg) Footnote
 People's Republic of China 978,013 C 290,003 F
 India 259,679 C 77,000 F
 Uzbekistan 57,332 C 17,000 F
 Brazil 37,097 C 11,000 F
 Iran 20,235 C 6,088 F
 Thailand 16,862 C 5,000 F
 Vietnam 10,117 C 3,000 F
 Democratic People's Republic of Korea 5,059 C 1,500 F
 Romania 3,372 C 1,000 F
 Japan 2,023 C 600 F
No symbol = official figure, F = FAO estimate,*= Unofficial figure, C = Calculated figure;

Production in Int $1000 have been calculated based on 1999-2001 international prices
Source: Food And Agricultural Organization of United Nations: Economic And Social Department: The Statistical Division


Cultivation[edit]

Silk moths lay eggs on specially prepared paper. The eggs hatch and the caterpillars (silkworms) are fed on fresh mulberry leaves. After about 35 days and 4 moltings, the caterpillars are 10,000 times heavier than when hatched and are ready to begin spinning a cocoon. A straw frame is placed over the tray of caterpillars, and each caterpillar begins spinning a cocoon by moving its head in a pattern. Two glands produce liquid silk and force it through openings in the head called spinnerets. Liquid silk is coated in sericin, a water-soluble protective gum, and solidifies on contact with the air. Within 2–3 days, the caterpillar spins about 1 mile of filament and is completely encased in a cocoon. The silk farmers then kill most caterpillars by heat, leaving some to metamorphose into moths to breed the next generation of caterpillars. Harvested cocoons are then soaked in boiling water to soften the sericin holding the silk fibers together in a cocoon shape. The fibers are then unwound to produce a continuous thread. Since a single thread is too fine and fragile for commercial use, anywhere from three to ten strands are spun together to form a single thread of silk.[48]

See also[edit]

References[edit]

Notes
  1. ^ "Silk". The Free Dictionary By Farlex. Retrieved 2012-05-23. 
  2. ^ a b Sutherland TD, Young JH, Weisman S, Hayashi CY, Merritt DJ (2010). "Insect silk: one name, many materials". Annual Review of Entomology 55: 171–88. doi:10.1146/annurev-ento-112408-085401. PMID 19728833. 
  3. ^ Walker AA, Weisman S, Church JS, Merritt DJ, Mudie ST, Sutherland TD. (2012). "Silk from Crickets: A New Twist on Spinning". PLoS ONE 7(2): e30408. doi:10.1371/journal.pone.0030408. PMC 3280245. PMID 22355311. 
  4. ^ "Silk". Etymonline. Retrieved 2012-08-27. 
  5. ^ Sindya N. Bhanoo (20 May 2011). "Silk Production Takes a Walk on the Wild Side". New York Times. Retrieved 26 May 2011. 
  6. ^ Hill (2004). Appendix E.
  7. ^ Hill (2009), "Appendix C: Wild Silks," pp.477-480.
  8. ^ Gheysens, T; Collins, A; Raina, S; Vollrath, F; Knight, D (2011). "Demineralization enables reeling of Wild Silkmoth cocoons". Biomacromolecules (American Chemical Society) 12 (6): 2257–66. doi:10.1021/bm2003362. PMID 21491856. Retrieved 26 May 2011. 
  9. ^ Kojima, K.; Kuwana, Y.; Sezutsu, H.; Kobayashi, I.; Uchino, K.; Tamura, T.; Tamada, Y. (2007). "A new method for the modification of fibroin heavy chain protein in the transgenic silkworm". Bioscience, biotechnology, and biochemistry 71 (12): 2943–2951. PMID 18071257.  edit
  10. ^ "Silk: History". Columbia Encyclopedia Sixth Edition. 
  11. ^ "Textile Exhibition: Introduction". Asian art. 
  12. ^ a b "Chinese archaeologists make ground-breaking textile discovery in 2,500-year-old tomb". People's Daily Online. Retrieved 26 August 2007. 
  13. ^ Lubec, G.; J. Holaubek; C. Feldl; B. Lubec; E. Strouhal (4 March 1993). "Use of silk in ancient Egypt". Nature 362 (6415): 25. doi:10.1038/362025b0.  (also available here [1])
  14. ^ *Hill, John E. (2009) Through the Jade Gate to Rome: A Study of the Silk Routes during the Later Han Dynasty, 1st to 2nd Centuries CE. BookSurge, Charleston, South Carolina. ISBN 978-1-4392-2134-1. Appendix A: "Introduction of Silk Cultivation to Khotan in the 1st Century CE," pp. 466-467.
  15. ^ "History of Sericulture". Governmentof Andhra Pradesh (India) - Department of Sericulture. Retrieved 7 November 2010. 
  16. ^ a b c Garthwaite, Gene Ralph (2005). The Persians. Oxford & Carlton: Blackwell Publishing, Ltd. p. 78. ISBN 1-55786-860-3. 
  17. ^ a b Abbott, Phill. "Rethinking silk's origins : Nature News". Nature.com. Retrieved 2013-11-09. 
  18. ^ Good, I.L.; Kenoyer, J.M.; Meadow, R.H. (2009). "New evidence for early silk in the Indus civilization". Archaeometry 50 (3): 457. doi:10.1111/j.1475-4754.2008.00454.x. 
  19. ^ [2]
  20. ^ http://www.deccanherald.com/content/31009/silk-city-come-up-near.html
  21. ^ "Tamil Nadu News : Tamil Nadu’s first automatic silk reeling unit opened". The Hindu. 2008-08-24. Retrieved 2013-11-09. 
  22. ^ About Thai silk from World of Thai Silk (commercial)
  23. ^ Odyssey 19 233-234: τὸν δὲ χιτῶν' ἐνόησα περὶ χροῒ σιγαλόεντα, οἷόν τε κρομύοιο λοπὸν κάτα ἰσχαλέοιο· = "And I [= Odysseus
  24. ^ Tacitus. Annals. ISBN 0-521-31543-3. 
  25. ^ "Silk: Why It Is Haram for Men". 23 September 2003. Archived from the original on 2 March 2007. Retrieved 6 January 2007. 
  26. ^ http://www.italyworldclub.com/calabria/catanzaro/catanzaro.htm
  27. ^ http://www.understandingitaly.com/calabria-content/catanzaro.html
  28. ^ http://www.officeoftourism.org/europe/italy/Calabria/catanzaro.asp
  29. ^ "La Lonja de la Seda de Valencia - UNESCO World Heritage Centre". Whc.unesco.org. Retrieved 2011-04-10. 
  30. ^ Diccionari Aguiló: materials lexicogràfics / aplegats per Marià Aguiló i Fuster; revisats i publicats sota la cura de Pompeu Fabra i Manuel de Montoliu, page 134, Institut d'Estudis Catalans, Barcelona 1929.
  31. ^ Callendine 1993
  32. ^ Eric P. Nash (30 July 1995). "STYLE; Dressed to Kill". The New York Times. Retrieved 12 October 2011. 
  33. ^ Vladimir Huzjan (July 2008). "Pokušaj otkrivanja nastanka i razvoja kravate kao riječi i odjevnoga predmeta" [The origin and development of the tie (kravata) as a word and as a garment]. Povijesni prilozi (in Croatian) (Croatian Institute of History) 34 (34): 103–120. ISSN 0351-9767. Retrieved 17 October 2011. 
  34. ^ Silk production in Dubrovnik's Konavle region on inyourpocket.com
  35. ^ Weatherford, D (2009). American Women During World War II: An Encyclopedia. Routledge. p. 97. ISBN 0415994756. 
  36. ^ The Malayhandloom weavers:a study of the rise and decline of traditional. Books.google.com.my. Retrieved 2013-11-09. 
  37. ^ Bezzina, Neville. "Silk Production Process". 
  38. ^ "Handbook of Fiber Chemistry", Menachem Lewin, Editor, 3rd ed., 2006, CRC press, ISBN 0-8247-2565-4
  39. ^ "Handbook of Fiber Chemistry", Menachem Lewin, Editor, 2nd ed.,1998, Marcel Dekker, pp. 438-441, ISBN 0-8247-9471-0
  40. ^ The Times, London, article CS117993292, dated 12 Oct 1840, retrieved 30 Apr 2004.
  41. ^ "Piezoelectricity in Natural and Synthetic Silks". Retrieved 28 April 2010. 
  42. ^ Frank K. Ko; Sueo Kawabata; Mari Inoue; Masako Niwa. "Engineering Properties of Spider Silk". Retrieved 9 July 2010. 
  43. ^ Ricci, G et al. "Clinical Effectiveness of a Silk Fabric in the Treatment of Atopic Dermatitis", British Journal of Dermatology 2004. Issue 150. Pages 127 - 131
  44. ^ Treatment. Senti. G. et al. "Antimicrobial Silk Clothing in the Treatment of Atopic Dermatitis Proves Comparable to Topical Corticosteroid" Department of Dermatology. Zurich Switzerland. Published in Dermatology 2006. 213:228 - 233
  45. ^ 10 minute video talk at TED by Fiorenzo Omenetto of Tufts University
  46. ^ Fritz, Anne and Cant, Jennifer (1986). Consumer Textiles. Oxford University Press Australia. Reprint 1987. ISBN 0-19-554647-4.
  47. ^ "Mulberry Silk - Textile Fibres - Handloom Textiles | Handwoven Fabrics | Natural Fabrics | Cotton clothes in Chennai". Brasstacksmadras.com. Retrieved 2013-11-09. 
  48. ^ Carrie Gleason: The Biography of Silk, page 12. Crabtree Publishing Company 2007.
Bibliography
  • Callandine, Anthony (1993). "Lombe's Mill: An Exercise in reconstruction". Industrial Archaeology Review (Maney Publishing) XVI (1). ISSN 0309-0728. 
  • Good, Irene. 1995. "On the question of silk in pre-Han Eurasia" Antiquity Vol. 69, Number 266, December 1995, pp. 959–968
  • Hill, John E. 2004. The Peoples of the West from the Weilüe 魏略 by Yu Huan 魚豢: A Third Century Chinese Account Composed between 239 and 265 AD. Draft annotated English translation. Appendix E.
  • Hill, John E. (2009) Through the Jade Gate to Rome: A Study of the Silk Routes during the Later Han Dynasty, 1st to 2nd Centuries CE. BookSurge, Charleston, South Carolina. ISBN 978-1-4392-2134-1.
  • Kuhn, Dieter. 1995. "Silk Weaving in Ancient China: From Geometric Figures to Patterns of Pictorial Likeness." Chinese Science 12 (1995): pp. 77–114.
  • Liu, Xinru (1996). Silk and Religion: An Exploration of Material Life and the Thought of People, AD 600-1200. Oxford University Press.
  • Liu, Xinru (2010). The Silk Road in World History. Oxford University Press. ISBN 978-0-19-516174-8; ISBN 978-0-19-533810-2 (pbk).
  • Rayner, Hollins (1903). Silk throwing and waste silk spinning. Scott, Greenwood, Van Nostrand. 
  • Sung, Ying-Hsing. 1637. Chinese Technology in the Seventeenth Century - T'ien-kung K'ai-wu. Translated and annotated by E-tu Zen Sun and Shiou-chuan Sun. Pennsylvania State University Press, 1966. Reprint: Dover, 1997. Chap. 2. Clothing materials.
  • Kadolph, Sara J. Textiles. 10th ed. Upper Saddle River: Pearson Prentice Hall, 2007. 76-81.
  • Ricci, G et al. "Clinical Effectiveness of a Silk Fabric in the Treatment of Atopic Dermatitis", British Journal of Dermatology (2004) Issue 150. Pages 127 - 131

External links[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Silk — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
1000000 videos foundNext > 

Silk - If You (Lovin' Me)

Silk If You feeling like (Lovin' Me)

Silk - Meeting In My Bedroom (Video)

2006 WMG Meeting In My Bedroom (Video)

Silk - Girl U For Me

Music Video.

Silk - Freak Me (HQ Video)

Album: Lose Control (1992)

Silk - Lose Control (AuDio) + Lyrics [1992]

(talking) I'm sorry I never meant to hurt you I really didn't I'm so sorry I just want you to sit down for just a minute Let me talk to you Last night we had...

SILK - Lose Control - LIVE at the Sweat Hotel Concert

This is the title cut from our debut LP, Lose Control. Lose Control was released with Girl U For Me on the "B side" on June 10, 1993. It was co-written by Ke...

Silk - more

slow jam.

Silk - If You (with lyrics)

Lyrics: http://easylyrics.org/?artist=Silk&title=If+You Thanks for checking out our videos and site!

Smart Material: Spider Silk

Spider Silk is stronger than Steel. In fact it is even stronger than Kevlar, the material that makes bullet-proof jackets. Though it is not as strong as carb...

BET Awards - Troop, Color Me Badd & Silk | LIVE 6-29-14

1000000 videos foundNext > 

49719 news items

Economic Times

Economic Times
Sat, 26 Jul 2014 07:15:00 -0700

Sri Lanka, which is receiving billions of dollars assistance from China was the first country to express its support for the MSR, a strategic initiative by China to re-invent the ancient trade routes used by its merchants to sell silk and porcelain ...

Life & Style Weekly

Life & Style Weekly
Fri, 25 Jul 2014 13:15:00 -0700

French Montana seems like an awesome guy, and he sure does make everyone's favorite Kardashian, Khloe, a very, very happy woman. So it pains us to have to point out that Mr. Montana was photographed in the Hamptons this week partying with Fat Joe ...

Independent Online

Smithsonian (blog)
Tue, 22 Jul 2014 07:36:30 -0700

Spider webs shake when fresh prey gets tangled in their threads. But the vibrations of spider silk can carry more than one message, and those messages can be subtle. In a recent study, researchers in the Oxford Silk Group took a careful look at how ...

Wired

Wired
Wed, 09 Jul 2014 03:37:23 -0700

Kraig Biocraft Laboratories, based in Michigan, announced today that it has found a way to double the production rate of its commercial product, called Monster Silk. The ramp-up takes the company another step closer to market, and away from the R&D stage.

National Post

The Huntsville Times - al.com
Thu, 24 Jul 2014 09:10:41 -0700

Maybe, before heading to the movie, you could cover your face with a gray silk scarf, or disguise yourself as a little old lady because, let's face it, nobody questions anything women do after the age of 80. If they did, little old ladies wouldn't ...

People's Daily Online

People's Daily Online
Fri, 25 Jul 2014 01:37:30 -0700

Professor Wang Shuanghuai, a speaker of the CCTV's Lecture Room, gave a training session with the theme “history and status quo of the Silk Road" to more than 600 tour guides in Xi'an City recently. The Silk Road consists of four road systems, namely ...

eTurboNews

eTurboNews
Wed, 23 Jul 2014 21:18:45 -0700

Held at the Quijang International Conference & Exhibition Centre from September 19-21, 2014, China Xi'an Silk Road International Tourism Expo is attracting a lot of buzz for its first of its kind showcase of the ancient Silk Road. With a gross ...
 
People's Daily Online
Fri, 25 Jul 2014 00:18:45 -0700

Last year, Chinese President Xi Jinping made the proposal of building the "Silk Road Economic Belt" and the "21st Century Maritime Silk Road" (also known as "One Belt and One Road"). As a very important country along the ancient Silk Road, how can ...
Loading

Oops, we seem to be having trouble contacting Twitter

Talk About Silk

You can talk about Silk with people all over the world in our discussions.

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!