BAMBOO FIBER ROPE MANUFACTURING METHOD, BAMBOO FIBER BUNDLE MANUFACTURING METHOD, AND BAMBOO FIBER ROPE

摘要

PROBLEM TO BE SOLVED: To provide a bamboo fiber rope manufacturing method providing a bamboo fiber rope with a high modulus of elasticity useful for a reinforcing member or the like, and a bamboo fiber bundle manufacturing method providing, at a high yield, a bamboo fiber bundle of high strength useful for a reinforcing member or the like.;SOLUTION: The bamboo fiber rope manufacturing method has: a twisting process for twisting a plurality of bamboo fiber bundles so as to be formed in a rope shape; a resin impregnating process for impregnating resin into the bamboo fiber bundles formed in rope shape; and a stretching process for obtaining the bamboo fiber rope by drying the bamboo fiber bundles impregnated with resin, while stretching them by applying tensile load under the conditions of 6-20% of rupture load of the untwisted bamboo fiber bundles until the strength reaches 70-100% of final attained strength when resin is cured. The bamboo fiber bundle manufacturing method has: a bamboo piece manufacturing process for obtaining bamboo pieces by cutting a bamboo material in a remaining region after removing a region of 1/3 or more from an inner skin side in the thickness direction of the bamboo material, into strip shape so that a long side is parallel with the fiber bundle; and a loosening process for providing the bamboo fiber bundle by removing material for binding the fibers of the bamboo pieces to loosen the fibers.;COPYRIGHT: (C)2009,JPO&INPIT