| 摘要 |
PROBLEM TO BE SOLVED: To produce a ground fabric having a multiple structure to keep a large vacant space by a folding method in improved efficiency. SOLUTION: A nonwoven fabric layer 2 is laminated and integrated to a ground fabric 1 by needling and a joint loop 6 is formed by folding the warp 5 at the folded part obtained by folding a definite-end woven fabric 3 constituting the ground fabric to obtain a seamed felt. The ground fabric has four woven fabric layers L1-L4 overlapped in the direction of thickness and formed by folding the woven fabric in a manner to form four folded parts 3c-3f at each of both ends in longitudinal direction while placing the end parts 3a, 3b of the woven fabric at the middle position of the longitudinal direction. COPYRIGHT: (C)2007,JPO&INPIT
|
