Patent ID: 7506397
Filing Date: 2009-03-24
Classification: A47L

Abstract:
1. A cleaning sheet having an attachment surface to be applied to a bottom face of a cleaning head of a cleaning device and a cleaning surface to be applied to an object to be cleaned, the cleaning sheet comprising: a first exterior sheet; a second exterior sheet that is liquid permeable with a fiber density lower than a fiber density of the first exterior sheet, the second exterior sheet being larger in size than the first exterior sheet; a liquid absorbent sheet capable of absorbing and retaining liquid, the liquid absorbent sheet being provided on a side of the second exterior sheet facing the attachment surface, and the first exterior sheet being exposed on the cleaning surface; and a backing sheet that is liquid permeable and provided on a side of the liquid absorbent sheet facing the attachment surface, the backing sheet being exposed on the attachment surface, and the first exterior sheet being exposed on the cleaning surface, wherein the first exterior sheet defines a first region of the cleaning surface; and the second exterior sheet extends from the first region to a second region of the cleaning surface outside the first region, the first exterior sheet and the second exterior sheet being fixed to each other at fixing regions located in the first region such that a portion of the first exterior sheet located between an edge of the second region and at least one of the fixing regions is allowed to move freely while being fixed at the at least one fixing region.