|Two Afghans overseeing the demonstration of |
silk production for the research center in Balkh
Province. The have to keep the temperature
and humidity in the proper range for good
Thank you, Wikipedia, for this information. http://en.wikipedia.org/wiki/Sericulture
Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk. Although there are several commercial species of silkworms, Bombyx mori is the most widely used and intensively studied. Sericulture has become one of the most important cottage industries in a number of countries like China, Japan, India, Korea, Brazil, Russia, Italy and France. Today, China and India are the two main producers, together manufacturing more than 60% of the world production each year.
Single filaments are combined to form thread. This thread is drawn under tension through several guides and wound onto reels. The threads may be plied together to form yarn. After drying the raw silk is packed according to quality.
|Here the silkworms are old enough to start spinning silk |
pretty soon. Now they can handle whole mulberry leaves
· The silk moth lays eggs.
· they feed mulberry leaves.
· When the silkworms are about 10,000 times heavier than when they hatched.
· They are now ready to spin a silk cocoon.
· The silk is produced in two glands in the silkworm's head and then forced out in liquid form through openings called spinnerets.
· The silk solidifies when it comes in contact with the air.
· The silkworm spins approximately 1 mile of filament and completely encloses itself in a cocoon in about two or three days but due to quality restrictions, the amount of usable silk in each cocoon is small. As a result, 5500 silkworms are required to produce 1 kg of silk.
· The silk is obtained from the undamaged cocoons by brushing the cocoon to find the outside end of the filament.
· The silk filaments are then wound on a reel. One cocoon contains approximately 1,000 yards of silk filament. The silk at this stage is known as raw silk. One thread consists of up to 48 individual silk filaments.