| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a high elastic packing having excellent flexibility and making up for a shortage of restoring force (elastic force) in the whole of the packing without inserting an elastic core material in the inside of a braiding structure in a longitudinal direction of the packing, in the packing formed by braiding a plurality of strings of knitting yarn in the braiding structure having a rectangular cross-section. <P>SOLUTION: In the packing formed by braiding the plurality of strings of the knitting yarn Sa, Sb in the braiding structures 1A, 10A having the rectangular cross-sections, the knitting yarn Sa that passes corner portions and the knitting yarn Sb that does not pass the corner portions is made by material of the same kind. The bending modulus of elasticity of the knitting yarn Sa that passes the corner portions is made to be larger than that of the knitting yarn Sb that does not pass the corner portions. The knitting yarn Sb that does not pass the corner portions of the braiding structures 1A, 10A is a string such as spun yarn that can plastically deform to bending stress. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
