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A slightly heavier silk buttonhole thread suitable for bartacking, small leather items, and decorative seams might be tex 40. A strong, durable upholstery thread, tex 75. A heavy-duty topstitching thread for coats, bags, and shoes, tex 100. A very strong topstitching thread suitable for luggage and tarpaulins, tex 265–tex 290.
Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by the larvae of the moth Bombyx mori. Silk production is thought to have begun in China and silk thread and cloth manufacture was well-established by the Shang dynasty (1600–1050 BCE). [6]
The production of silk originated in China in the Neolithic period, although it would eventually reach other places of the world (Yangshao culture, 4th millennium BC). Silk production remained confined to China until the Silk Road opened at some point during the latter part of the 1st millennium BC, though China maintained its virtual monopoly over silk production for another thousand years.
As a result of their smoothness, Inca textiles made of vicuña fiber are described as "silk" by the first Spanish explorers. The finest Inca cloth had a thread count of more than 600 threads per inch, higher than that found in contemporaneous European textiles and not excelled anywhere in the world until the industrial revolution in the 19th ...
The cocoon is made of a thread of raw silk from 300 to about 900 metres (980 to about 3,000 ft) long. The fibers are fine and lustrous, about 10 μm (0.0004 in) in diameter. About 2,000 to 3,000 cocoons are required to make one pound (0.45 kg).
Reenactment of a Viking landing in L'Anse aux Meadows. Pre-Columbian transoceanic contact theories are speculative theories which propose that visits to the Americas, interactions with the Indigenous peoples of the Americas, or both, were made by people from elsewhere prior to Christopher Columbus's first voyage to the Caribbean in 1492. [1]