发明名称 CLOTH EXHIBITING ACOUSTIC ABSORPTION
摘要 <p>A cloth exhibiting sufficient acoustic absorption performance with lightweight and having a three-dimensional structure where two ground weaves (1, 2) are connected through connecting yarns. The ground weave (1) on the sound incident side has meshed openings (4) wherein the non-opening (5) of the ground weave is formed into dome-shape having a curvature (1/R) of 0.1-0.7 assuming the radius of curvature is R mm. The non-opening (5) has a height of 1.5-5.0 mm from the bottom to the top, and a DV value of 5-120 obtained by the expression [1] and insertion yarns (6) are knitted to the inside of the ground weave (2) on the non-incident side of sound. DV=(4.2×p×A×W×c')/c ..... [1] A...height of non-opening (mm) W...length of non-opening in the direction of course (mm) c'...number of loops per one repeat in the wale direction of non-opening c...course density at the time of finishing cloth exhibiting acoustic absorption</p>
申请公布号 WO2006106974(A1) 申请公布日期 2006.10.12
申请号 WO2006JP306946 申请日期 2006.03.31
申请人 SEIREN CO., LTD.;SHIRASAKI, FUMIO;SUZUKI, YUKARI 发明人 SHIRASAKI, FUMIO;SUZUKI, YUKARI
分类号 D04B21/14 主分类号 D04B21/14
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