Patent ID: 8793832

Claim:
A cleaning sheet comprising: a base sheet; and a plurality of sets of plural fiber bound materials, each of the sets of fiber bound materials is comprised of fibers which are aligned in a first direction and are bound at a center portion thereof along a second direction crossing the first direction of fibers, wherein: the sets of plural fiber bound materials are adjacently disposed side-by-side and each set is joined at its bound portion on at least one surface of the base sheet to form a joining portion the adjacently disposed respective sets of plural fiber bound materials have respectively differing densities of the fibers thereof; a length of a movable portion extending from the bound portion to a free end of one of the sets of plural fiber bound materials is different from a length of a movable portion extending from the bound portion to a free end of another of the sets of plural fiber bound materials disposed adjacently to the one of the sets of plural fiber bound materials; and the free ends of the movable portions of the adjacently disposed sets of fiber bound materials partially overlap each other.