How Is Silk Yarn Obtained From The Silk Moth

Silk yarns and fibers are extracted from silkworm cocoons. Silk moth lays eggs, and then eggs hatch into larva, or caterpillar ¨C the silkworm. Next, silkworms spin cocoon for protection. Sort cocoons according to the color, size shape, and texture. Heat the sorted cocoons in boiling water to soften the gummy substance that holds the cocoon filament in place. Unwound silk filaments, and combine them together to make a thread of raw silk. Twist one or more threads of the raw silk into a strand sufficiently strong for weaving or knitting. Place silk yarns into final soap bath to soften the gummy sericin.


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