It must be kept in mind that about 1 per cent of total harvest of cocoons is not boiled. The insects within the cocoon are allowed to mature to form silk moths. These silk moths cut through the cocoons and are allowed to breed for silk worm eggs for future production of silk. The silk from the damaged cocoons is collected and mixed with the filaments of coarse outer portion of the cocoon as well as from the inner portions of cocoons which is left after reeling. This mixture is then spun to obtain low grade silk yarn..
by DEEPANKAR MECHIt's boiled and then unwound into a long thread.
cocoons are boiled in hot water so that the gummy substance called the sericin can come out so that it is easy to pull out the thread called silk
It must be kept in mind that about 1 per cent of total harvest of cocoons is not boiled. The insects within the cocoon are allowed to mature to form silk moths. These silk moths cut through the cocoons and are allowed to breed for silk worm eggs for future production of silk. The silk from the damaged cocoons is collected and mixed with the filaments of coarse outer portion of the cocoon as well as from the inner portions of cocoons which is left after reeling. This mixture is then spun to obtain low grade silk yarn..by DEEPANKAR MECH
cocoons are boiled in hot water so that the gummy substance called the sericin can come out so that it is easy to pull out the thread called silk
The silk that is made into the cloth is the thread that the silkmoth caterpillar spins to make its cocoon. Thus the cocoons are boiled to kill the pupa and free the silk thread.
Silkworm cocoons are placed in boiling water to make the one long continuous thread separate from it.
went to dance's, farm work ,sewed, spinning thread,harvesting and read
they kill the silkworm that is inside to get the cocoon into fiber (thread)
Yes it is! Silk from silkworm cocoons is extracted to be used for manufacturing of many types of clothing; meaning, that the silky clothings you are wearing are actually made of many threads of silk that were extracted from many silkworm cocoons. In fact, only one silkworm cocoon contains a single continuous silk thread that can reach about 3600 feet in length! This method of manufacturing originated in China, where the first silk keel was invented and there are different farming methods in different countries. The process of extraction in Chinese farms involves heating the cocoons in an oven in order to kill the silkworm inside the cocoon, and then soaking the cocoons in water in order to identify the end of the silk thread. Once theyre soaked, the silk is extracted from the cocoons using multiple threads from several cocoons to form a single silk thread (since one thread of silk from one cocoon is too thin). Hope that helps:)
Silk is obtained from the cocoon of the silkworm, which is the larval stage of the silk moth (Bombyx mori). After the larvae spin their cocoons, they undergo metamorphosis into moths. To harvest silk, the cocoons are typically boiled or steamed to kill the pupa and loosen the silk fibers, which are then carefully unwound and processed into silk thread. This process has been practiced for thousands of years, primarily in countries like China and India.
It takes about 2,000 to 3,000 cocoons to produce 1 kg of raw silk. Each cocoon is made up of a single continuous thread of silk spun by the silkworm larvae.
Cocoons that produce live silk moths are considered useless for silk production because the emergence of the moths compromises the integrity of the silk thread. When the moths break free from the cocoon, they create holes and frayed ends in the silk fibers, rendering the material less valuable and unsuitable for high-quality textile production. Additionally, the process of harvesting silk typically involves killing the pupa before it emerges, ensuring the integrity of the silk strand. Thus, cocoons that yield live moths do not meet the economic demands of the silk industry.