PURPOSE: To improve mechanical strength around an opening by using yarns in plural directions containing yarns in the circumferential direction and radial directions in the opening provided in at least one lateral end of three-dimensional cloth and passing yarns in the thickness direction through intervals between the aforementioned yarns and arranging the yarns in the thickness direction.
CONSTITUTION: The above-mentioned substrate is constructed as follows. An opening is provided in at least one lateral end of three-dimensional cloth prepared by laminating yarns, meandered and arranged in the X-axis direction, Y-axis direction of further W-axis direction, passing yarns in the Z-axis direction through intervals between the aforementioned yarns and arranging the above-mentioned yarns at 25-2% yarn volume content. The aforementioned opening is arranged by using yarns of two or more axes containing yarns in the circumferential direction and radial direction and arranging the yarns so as to expose part of the yarns in the above-mentioned directions on the inner peripheral surface of the opening. Yarns in the thickness direction are passed through intervals between the yarns in the circumferential direction and radial direction, etc., and arranged therein.
NISHIYAMA SHIGERU
TANAKA HIDEAKI
HIROKAWA TETSURO
ISHIBASHI MASAYASU
SHIKISHIMA CANVAS KK
| JPH0198800A | 1989-04-17 | |||
| JPS61207657A | 1986-09-16 |