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US 5,459,902 AGranted
Slenderized animal wool and its manufacturing method
AssigneeKurashiki Boseki Kabushiki Kaisha
InventorsRyohei Hino, Tadashi Karakawa, Wasaburo Kengaku, Takashi Kondo, Masaru Yamada
Life of this patent
Estimating the term…
Abstract
A sliver of animal wool is subjected to hot drawing under its wet state to provide a slenderized fine animal wool.
Claims14
A method of manufacturing a slenderized animal wool fiber, comprising the steps of
- (A) drawing a wetted sliver of the animal wool by means of a plurality of drawing rollers at a multiplicity of from 1.4 to 2.2 times, and then
- (B) setting the drawn sliver with heat while the sliver continues to be drawn by the plurality of drawing rollers.
Dependencies are inferred from the claim text.