Patent ID: 7030046

Claim:
A multi-layer substrate having a surface area, said substrate being suitable for incorporation in a premoistened wipe for cleaning surfaces, said substrate comprising: (a) at least one reservoir layer, wherein a first reservoir layer has a basis weight of at least about 15 gsm and comprises: (i) from at least about 5% to less than about 50%, by weight of said first reservoir layer, of carded hydrophilic polypropylene fibers and mixtures thereof with other carded hydrophilic fibers; and (ii) from at least about 50% to less than about 95% by weight of said first reservoir layer, of carded hydrophobic fibers; wherein the total basis weight of said reservoir layer(s) is from about 10% to about 95% of the total basis weight of said multi-layer substrate; and (b) at least one surface contacting layer; wherein a first surface contacting layer has a basis weight of at least about 5 gsm and comprises: (i) from at least about 20% to less than about 50%, by weight of said first surface contacting layer, of carded hydrophilic polypropylene fibers and mixtures thereof with other carded hydrophilic fibers; and (ii) from at least about 50% to less than about 80%, by weight of said first surface contacting layer, of carded hydrophobic fibers; wherein the total basis weight of said surface contacting layer(s) is from at least about 10% to less than about 60% of the total basis weight of said multi-layer substrate, and wherein said layers (a) and (b) are bonded to one another via patterned thermal bonding having about 1–40 bonds/cm 2 covering from about 5% to about 30% of the substrate's surface area.