Patent ID: 7820277

Claim:
A wiper in the form of a sheet comprising: a first surfacing layer appearing on one sheet surface; a second surfacing layer appearing on the other sheet surface; a reinforcing layer comprising fusible fibers; and an interlining layer pre-moistened with liquid and comprising hydrophilic fibers, including one of pulp or cotton, the reinforcing layer and the interlining layer being located between the first and second surfacing layers, wherein the first and second surfacing layers comprising non-fusible fibers whose surface has a higher melting point than that of the fusible fibers of the reinforcing layer, the non-fusible fibers comprise a blend of 50-100 wt % of hydrophobic synthetic resin fibers and a 0-50 wt % of hydrophilic fibers, wherein fibers in each of the first surfacing layer, the second surfacing layer, the reinforcing layer and the interlining layer are entangled both within each layer and across adjacent ones of the layers, such that the first surfacing layer, the second surfacing layer, the reinforcing layer and the interlining layer are thereby integrated as a single, nonwoven fabric, wherein the entangled fusible fibers are fusion-bonded while the entangled non-fusible fibers remain unfused, wherein the fusible fibers of the reinforcing layer that are entangled are heat-bonded with ones of the hydrophilic fibers of the interlining layer and the non-fusible fibers of the first and second surfacing layers, wherein the hydrophilic fibers contained in the interlining layer have a fiber length equal to or less than 10 mm and the interlining layer has a higher density than the first and second surfacing layers, wherein the higher density of the interlining layer promotes the liquid retention in the interlining layer, and wherein the non-fusible fibers constituting the first surfacing layer and the second surfacing layer include one or more of synthetic resin fibers or cellulosic fibers having a fiber length in the range of 20 to 70 mm.