WARP AND WEFT FABRIC BASED ON PREDOMINANTLY UNTWISTED MULTIFILAMENT TECHNICAL THREADS AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a textile structure intended for a composite material, which has little fine pores even using threads with a high yarn count and allows sufficient penetration of resin.;SOLUTION: The fabric composed of multifilament threads is characterized in that at least 80% of the weight of the constituent warp and weft satisfies the followings: (a) the yarn count to be used for a fabric weight per unit area is greater than the conventional case; (b) the thread has a torsion not greater than the original torsion; and (c) the width is greater than or equal to an original width before weaving over the entire length. When the weight ratio of weft to warp is ≥80/20, the threads having the above characteristics constitute all threads in a direction composed of the larger parts by weight of the threads, and when the ratio is smaller than 80/20, these threads constitute all threads of the fabric. The fiber volume ratio is approximately constant throughout the fabric and is greater than the fiber volume ratio of conventional fabric to use thread having smaller yarn count as a base material.;COPYRIGHT: (C)2007,JPO&INPIT