Structures useful as cleaning sheets

A cleaning sheet comprising one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80% of the basis weight of the high basis weight region(s);

• and wherein the high basis weight region(s) and the low basis weight region(s) co-exist in at least one X-Y dimension of the cleaning sheet wherein the cleaning sheet comprises a scrim material hydroentangled with a fibrous material.

A cleaning sheet comprising one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80% of the basis weight of the high basis weight region(s);

• and wherein the high basis weight region(s) and the low basis weight region(s) co-exist in at least one X-Y dimension of the cleaning sheet wherein the sheet is treated with an additive at an add-on level of at least about 0.01%, by weight.

A cleaning sheet comprising a relatively high basis weight continuous region having a basis weight of from about 30 to about 120 g/m2 and a plurality of discrete discontinuous regions circumscribed by the high basis weight region, wherein the discontinuous regions are disposed in a nonrandom, repeating pattern and have a basis weight of not more than about 80% of the basis weight of the continuous region wherein at least about 5% of the cleaning sheet's total surface area is comprised of low basis weight, discrete regions.

A cleaning sheet comprising a relatively high basis weight continuous region having a basis weight of from about 30 to about 120 g/m2 and a plurality of discrete discontinuous regions circumscribed by the high basis weight region, wherein the discontinuous regions are disposed in a nonrandom, repeating pattern and have a basis weight of not more than about 80% of the basis weight of the continuous region wherein the cleaning sheet comprises a scrim material hydroentangled with a fibrous material.

A cleaning sheet comprising a relatively high basis weight continuous region having a basis weight of from about 30 to about 120 g/m2 and a plurality of discrete discontinuous regions circumscribed by the high basis weight region, wherein the discontinuous regions are disposed in a nonrandom, repeating pattern and have a basis weight of not more than about 80% of the basis weight of the continuous region wherein the sheet is treated with an additive at an add-on level of at least about 0.01%, by weight.

A cleaning sheet comprising a relatively high basis weight continuous region having a basis weight of from about 30 to about 120 g/m2 and a plurality of discrete discontinuous regions circumscribed by the high basis weight region, wherein the discontinuous regions are disposed in a nonrandom, repeating pattern and have a basis weight of not more than about 80% of the basis weight of the continuous region;

• and wherein the cleaning sheet has a first outward surface and a second outward surface, wherein at least one of the outward surfaces has an Average Peak to Peak Distance of at least about 1 mm and a Surface Topography Index from about 0.01 to about 10.

A cleaning implement comprising:

• a. a handle;
• and
• b. a removable cleaning sheet, the cleaning sheet comprising one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80% of the basis weight of the high basis weight region(s).

The cleaning implement of claim 95, wherein the cleaning sheet is also macroscopically three-dimensional.

A cleaning sheet comprising one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80% of the basis weight of the high basis weight region(s);

• and wherein the high basis weight region(s) and the low basis weight region(s) co-exist in at least one X-Y dimension of the cleaning sheet, said sheet being in a package with instructions to use the sheet on at least one surface having particulate material on it, to lower the level of particulate material in the air.

A cleaning sheet comprising one or more high basis weight regions having a basis weight of from about 30 to about 120 g/m2 and one or more low basis weight regions, wherein the low basis weight region(s) have a basis weight that is not more than about 80% of the basis weight of the high basis weight region(s);

• and wherein the high basis weight region(s) and the low basis weight region(s) co-exist in at least one X-Y dimension of the cleaning sheet , said sheet being in a package with instructions to use the sheet on at least one surface having particulate material on it, to reduce the level of particulate soil on the surface.

An article of manufacture comprising a cleaning sheet with an open structure and overall low basis weight having an additive applied at a low effective level to provide improved adhesion of soil to said sheet, said additive being applied in a substantially uniform manner to at least one continuous area and said sheets being in a package in association with instructions to use the sheets to reduce airborne particulate matter.