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US 5,397,067 AGranted
Method of producing bamboo fibers
AssigneesAsk S.A., Sanshin Thermal Insulation Co., Ltd.
InventorsNorihito Akiyama, Kazuo Sakamoto, Motonobu Abe, Shoichiro Irie
Life of this patent
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Abstract
A method of producing bamboo fibers comprese a first step of crushing bamboo in the direction of growth thereof by a rolling machine; a second step of fiberizing the crushed bamboo, obtained in the first step, by a hammer-mill-type grinding machine; and a third step of separating an inner thin skin portion of the bamboo, mixed in with the bamboo fibers obtained in the second step, from the bamboo fibers.
Claims2
A method for producing bamboo fibers comprising the steps of:
- crushing bamboo in a direction of growth thereof by a rolling machine which is a roll-type or stamping-type rolling machine;
- fiberizing the crushed bamboo by a hammer-mill-type grinding machine to form fibers and inner skin portions;
- conveying the inner thin skin portions of the bamboo mixed in with the bamboo fibers obtained in said fiberizing step to a first conveyor;
- and
- separating the inner thin skin portion of the bamboo from the bamboo fibers by a mechanical process in which the inner thin skin portion and the bamboo fibers are conveyed by said first conveyor to a pair of feeding rolls, the bamboo fibers are scattered by said feeding rolls onto a second conveyor, and the inner thin skin portion conveyed by said feeding rolls falls short of said second conveyor and is collected in a collecting vessel.
2 more elements
A method of producing bamboo fibers comprising the steps of:
- crushing bamboo in a direction of growth thereof by a rolling machine which is a roll-type or stamping-type rolling machine;
- fiberizing the crushed bamboo by a hammer-mill-type grinding machine to form bamboo fibers and inner skin portions;
- and
- separating an inner thin skin portion of the bamboo fibers obtained in said fiberizing step from the bamboo fibers by immersing the inner thin skin portion and the bamboo fibers in water so as to cause the inner thin skin portion to float to the surface of the water and thereafter permit the removal of the inner thin skin portion from the water.
1 more element
Dependencies are inferred from the claim text.