| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning sheet which has at least one long fiber assembly made up by aligning long fibers virtually in one direction and assembling them and has a high dust-catching ability because the long fibers are not easily tangled with each other, so that the degrees of freedom of long fibers can be maintained high. SOLUTION: A cleaning sheet 1 has at least one long fiber assembly 10 made by aligning long fibers 11 virtually in one direction and assembling them. The long fibers 11 are jointed with a first joint line 12 extending continuously in the direction perpendicular to their alignment direction and are also jointed with two or more second joint lines 13 extending in their alignment direction. The assembling status of the long fibers 11 of the long fiber assembly 10 is formed with these joints. COPYRIGHT: (C)2009,JPO&INPIT
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