TUBULAR BAG AND BAG HAVING CORE

摘要

PROBLEM TO BE SOLVED: To provide a tubular bag inflatable mainly in the radial direction of a tube, and a bag having a core. SOLUTION: The tubular bag 1 is sewn from a warp and a weft, with the warp linearly stretched in the longitudinal direction of the tube and the weft being bent. The bag 1 is secured to each end of the core 2.