熨斗のし糸いと

noun

coarse silk from outside of cocoon; waste silk thread

Technical term in sericulture; refers to the rough outer layer of silk filament that is not suitable for fine reeling and is used as a lower-grade thread.

• 熨斗のし糸いとは繭まゆの外そと側がわから取とれる粗あらい絹きぬ糸いとで、高こう級きゅうな生き糸いとにはならない。

  Noshi-ito is a coarse silk thread obtained from the outside of the cocoon and does not become high-quality raw silk.