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The mulberry silkworm caterpillar spins about one mile of thread for its cocoon. The farmers who specialize in this production arrange special frames for the caterpillars, and the caterpillars are killed with heat when they have finished building their cocoon. This is then immersed in hot water to soften the adhesive part, and wound up on spools. Several threads are wound together to make a usable fibre.
The thread from the Bombyx mori (silkworm) is triangular in section, and is about 5 - 10 microns wide.
The earliest silk fabric dates from about 3500 BCE, and the silk trade had spread such that an Egyptian mummy of about 1070 BCE had some silk in the hair.
Spider silk is about one-third the diameter of silk from the mulberry moth.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThe mulberry silkworm caterpillar spins about one mile of thread for its cocoon. The farmers who specialize in this production arrange special frames for the caterpillars, and the caterpillars are killed with heat when they have finished building their cocoon. This is then immersed in hot water to soften the adhesive part, and wound up on spools. Several threads are wound together to make a usable fibre.
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How fibers are obtained?
Silk fibers are obtained from the cocoon of silk larvae, larvae of the silk moth, which are spun from the cocoon into one, long thread.
How is silk produced?
it is produced by using the liquid in a silk worms mouth.
Where does silk come from what happens to the cocoon?
Silk comes from the cocoon spun by the silk work. The cocoon is unwound and the silk is then processed for use by humans.
What is the maximum length of silk thread that can be obtained from a cocoon?
it is about 300-900meters {1000-3000 feet}long
Is silk is a polymer?
Silk is natural, not a man-made polymer. The silk is mainly obtained from the cocoons of the Mulberry Silkworm (Bombyx mori). When the caterpillar forms a pupae, it encases itself in a cocoon of fine silk thread. Before the adult moth emerges, the cocoon is steeped in hot water to kill the developing moth inside. The cocoon is then unravelled and is combined with several other silk threads to produce a strong silk thread that can be used to produce silk fabric.
Why silk obtained by mulberry silk moth most popular?
The Bombyx mori silkmoth's cocoon is the most predictably produced source of silk fibre as a standard. Its size, quality, and tensel strength is predictable given the complete domestsication of this animal.Economically, then, this animal's cocoon is the most popular source of commercial silk.
What is maximum length of continuous silk thread obtained from cocoon?
A single continuous thread of raw silk from 300 to 900 meters (1000 to 3000 feet) can be drawn from a cocoon. The fibers are very fine and lustrous, about 10 micrometers (1/2500th of an inch) in diameter.
What is filament silk?
it is the thead extracted from the cocoon and the removing of silk from the cocoon is called sericulture which is not a eco-friendly process
How do you harvest silk?
Commercial silk is typically harvested from the silk moth. Yup, that's about it. In ancient China silk was harvested from the tiny cocoons of the silk moth by dropping them into a pot of boiling water.
How you get silk from butterfly?
Silkworms, which emerge from their cocoons as moths, spin cocoons that are the raw material for the fibre humans use as silk. Cocoons are harvested from domesticated silkworms by heating the cocoon to kill the animal, then the silk cocoon is unraveled. Once the moth has emerged -- in wild silkworms for example, the cocoon's silk can be harvested, but not in one continuous length. As a moth, there is no connection with the now-discarded cocoon.
What is silk?
Silk is the secretion from the spinnerets of the silk moth larva (it's cocoon).
Does silk come from a plant or a worm?
There isn't technically a silk plant. Silk worms make silk. They spin a cocoon and silk comes from the fibers in the cocoon. Linen is made from the fibers of the flax plant.
