Scrub puff

Claim 2

An open low density abrasive article adapted for the cleaning of moderately soft metallic surfaces comprising: a substrate selected from the group consisting of i) a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive, ii) a polymeric flexible foam selected from the group consisting of urethane, polypropylene, polyethylene, polyvinyl alcohol, silicone rubber, neoprene and natural rubber latex of density between about 0.015 g/cm 3 and about 0.1 g/cm 3 , iii) woven fabrics of natural and synthetic fibers selected from the group consisting of terry, duck, twill, oznaberg, and leno of surface density between about 100 g/m 2 and about 410 g/m 2 , iv) non-woven fabrics of natural and synthetic fibers selected from the group consisting of spunbonded, fibre entangled, thermal and chemical bonded and needle punched of surface density between about 75 g/m 2 and about 285 g/m 2 and v) high wet strength, substantially water resistant papers of the kraft or zinc chloride treated type of surface density from about 100 g/m 2 to about 1 kg/m 2 , and abrasive particles distributed upon and within said substrate and firmly bonded to the substrate fibers by a relatively hard binder, wherein said abrasive is defined by any one of the measures of hardness selected from the group of measures consisting of: ______________________________________ a) Mho's 4.5-6.3 b) Rockwell B 60-85 c) Brinell 95-142 d) Knoop 120-180 ______________________________________ wherein the abrasive material is selected from the group consisting of finely divided copper base alloy, iron, nickel base alloy, spherical glass beads, steel or mineral.

Claim 3

An article of claim 1 wherein the substrate is a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive and the abrasive particles are distributed upon and within said web and firmly bonded to the web fibers.

Claim 4

An article of claim 1 wherein the substrate is a polymeric flexible foam.

Claim 5

An article of claim 1 wherein the substrate is a woven fabric of natural and synthetic fibers selected from the group of fibers consisting of cotton, polyester or nylon.

Claim 6

An article of claim 1 wherein the substrate is a non-woven fabric of natural and synthetic fibers selected from the group of fibers consisting of rayon, polyester or nylon.

Claim 7

An article of claim 1 wherein the substrate is paper.

Claim 8

An article of claim 1 wherein the metallic surface is aluminum, copper, brass or bronze.

Claim 9

An article of claim 1 wherein the abrasive material is finely divided stainless steel.

Claim 10

An article of claim 1 wherein the abrasive material is a finely divided mineral.

Claim 11

An article of claim 1 wherein the abrasive material is spherical glass beads.

Claim 12

An article of claim 1 wherein the abrasive material comprises spherical glass beads and stainless steel.

Claim 13

An article of claim 1 wherein the abrasive material is finely divided and does not exceed 300 microns in diameter.

Claim 14

An article of claim 2 wherein the substrate comprising a coating of said abrasive material on said web substrate of a density of between about 140 and about 250 g/m 2 of gross area.

Claim 15

An article of claim 1 additionally comprising a lubricant.

Claim 16

An article of claim 14 wherein the abrasive particles are coated with the lubricant.

Claim 17

An article of claim 14 wherein the lubricant comprises a soap, solid at ambient temperature.

Claim 18

An article of claim 14 wherein the lubricant comprises a wax, solid at ambient temperature.

Claim 19

An article of claim 14 wherein the lubricant comprises carnauba wax.

Claim 20

An article of claim 14 wherein the lubricant comprises a fatty acid.

Claim 21

An article of claim 16 wherein the amount of soap is between 25 and 75% by weight of the entire article.

Claim 22

An article of claim 17 wherein the amount of wax is between 5 and 40% by weight of the entire article.

Claim 23

An article of claim 2 in layer form, having an upper and a lower surface, additionally comprising a layer of natural or synthetic sponge-like material attached to one of said surfaces.

Claim 24

An article of claim 22 comprising a sponge-like layer between two layers of abrasive coated web.

Claim 25

An article of claim 22 comprising a sponge-like layer encapsulated within layers of abrasive coated web.

Claim 26

An article of claim 22 additionally comprising a soap, solid at ambient temperature.

Claim 27

An article of claim 3 in layer form, having an upper and a lower surface, additionally comprising a layer of natural or synthetic sponge-like material attached to one of said surfaces.

Claim 28

An article of claim 26 comprising a sponge-like layer between two layers of abrasive coated web.

Claim 29

An article of claim 26 comprising a sponge-like layer encapsulated within layers of abrasive coated web.

Claim 30

An article of claim 26 additionally comprising a soap, solid at ambient temperature.

Claim 31

An article of claim 4 in layer form, having an upper and a lower surface, additionally comprising a layer of natural or synthetic sponge-like material attached to one of said surfaces.

Claim 32

An article of claim 30 comprising a sponge-like layer between two layers of abrasive coated web.

Claim 33

An article of claim 30 comprising a sponge-like layer encapsulated within layers of abrasive coated web.

Claim 34

An article of claim 30 additionally comprising a soap, solid at ambient temperature.

Claim 35

An article of claim 4 in layer form, having an upper and a lower surface, additionally comprising a layer of natural or synthetic sponge-like material attached to one of said surfaces.

Claim 36

An article of claim 34 comprising a sponge-like layer between two layers of abrasive coated web.

Claim 37

An article of claim 34 comprising a sponge-like layer encapsulated within layers of abrasive coated web.

Claim 38

An article of claim 34 additionally comprising a soap, solid at ambient temperature.

Claim 39

An article of claim 5 in layer form, having an upper and a lower surface, additionally comprising a layer of natural or synthetic sponge-like material attached to one of said surfaces.

Claim 40

An article of claim 38 comprising a sponge-like layer between two layers of abrasive coated web.

Claim 41

An article of claim 38 comprising a sponge-like layer encapsulated within layers of abrasive coated web.

Claim 42

An article of claim 38 additionally comprising a soap, solid at ambient temperature.

Claim 43

An open low density abrasive article adapted for the cleaning of moderately soft metallic surfaces comprising: a substrate selected from the group consisting of i) a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive, ii) a polymeric flexible foam selected from the group consisting of urethane, polypropylene, polyethylene, polyvinyl alcohol, silicone rubber, neoprene and natural rubber latex of density between about 0.015 g/cm 3 and about 0.1 g/cm 3 , iii) woven fabrics of natural and synthetic fibers selected from the group consisting of terry, duck, twill, oznaberg, and leno of surface density between about 100 g/m 2 and about 410 g/m 2 , iv) non-woven fabrics of natural and synthetic fibers selected from the group consisting of spunbonded, fibre entangled, thermal and chemical bonded and needle punched of surface density between about 75 g/m 2 and about 285 g/m 2 and v) high wet strength, substantially water resistant papers of the kraft or zinc chloride treated type of surface density from about 100 g/m 2 to about 1 kg/m 2 , and abrasive particles selected from the group consisting of finely divided copper base alloy, iron, nickel base alloy, spherical glass beads, steel or mineral distributed upon and within said substrate and firmly bonded to the substrate fibers by a relatively hard binder, wherein said abrasive is defined by any one of the measures of hardness selected from the group of measures consisting of: ______________________________________ a) Mho's 4.5-6.3 b) Rockwell B 60-85 c) Brinell 95-142 d) Knoop 120-180 ______________________________________ wherein the coating of said abrasive material on said web substrate has a density of between about 140 and about 250 g/m 2 of gross area.

Claim 44

An open low density abrasive article adapted for the cleaning of moderately soft metallic surfaces comprising: a substrate selected from the group consisting of i) a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive, ii) a polymeric flexible foam selected from the group consisting of urethane, polypropylene, polyethylene, polyvinyl alcohol, silicone rubber, neoprene and natural rubber latex of density between about 0.015 g/cm 3 and about 0.1 g/cm 3 , iii) woven fabrics of natural and synthetic fibers selected from the group consisting of terry, duck, twill, oznaberg, and leno of surface density between about 100 g/m 2 and about 410 g/m 2 , iv) non-woven fabrics of natural and synthetic fibers selected from the group consisting of spunbonded, fibre entangled, thermal and chemical bonded and needle punched of surface density between about 75 g/m 2 and about 285 g/m 2 and v) high wet strength, substantially water resistant papers of the kraft or zinc chloride treated type of surface density from about 100 g/m 2 to about 1 kg/m 2 , and abrasive particles selected from the group consisting of finely divided copper base alloy, iron, nickel base alloy, spherical glass beads, steel or mineral distributed upon and within said substrate and firmly bonded to the substrate fibers by a relatively hard binder, wherein said abrasive is defined by any one of the measures of hardness selected from the group of measures consisting of: ______________________________________ a) Mho's 4.5-6.3 b) Rockwell B 60-85 c) Brinell 95-142 d) Knoop 120-180 ______________________________________ wherein the coating of said abrasive material on said web substrate has a density of between about 140 and about 250 g/m 2 of gross area.

Claim 45

An open low density abrasive article adapted for the cleaning of moderately soft metallic surfaces comprising: a substrate selected from the group consisting of i) a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive, ii) a polymeric flexible foam selected from the group consisting of urethane, polypropylene, polyethylene, polyvinyl alcohol, silicone rubber, neoprene and natural rubber latex of density between about 0.015 g/cm 3 and about 0.1 g/cm 3 , iii) woven fabrics of natural and synthetic fibers selected from the group consisting of terry, duck, twill, oznaberg, and leno of surface density between about 100 g/m 2 and about 410 g/m 2 , iv) non-woven fabrics of natural and synthetic fibers selected from the group consisting of spunbonded, fibre entangled, thermal and chemical bonded and needle punched of surface density between about 75 g/m 2 and about 285 g/m 2 and v) high wet strength, substantially water resistant papers of the kraft or zinc chloride treated type of surface density from about 100 g/m 2 to about 1 kg/m 2 , and abrasive particles selected from the group consisting of finely divided copper base alloy, iron, nickel base alloy, spherical glass beads, steel or mineral distributed upon and within said substrate firmly bonded to the substrate fibers by a relatively hard binder, wherein said abrasive is defined by any one of the measures of hardness selected from the group of measures consisting of: ______________________________________ a) Mho's 4.5-6.3 b) Rockwell B 60-85 c) Brinell 95-142 d) Knoop 120-180 ______________________________________ and a fatty acid or wax solid at room temperature.

Claim 46

An open low density abrasive article adapted for the cleaning of moderately soft metallic surfaces comprising: a substrate selected from the group consisting of i) a lofty open non-woven three dimensional web form substrate of a plurality of interlaced randomly extending flexible durable, tough, resilient organic fibers having a diameter of from about 25 to about 250 microns, said web fibers being firmly adhesively bonded together at points where they cross and contact each other to form a three-dimensionally integrated structure throughout said web, there being defined throughout said article a tridimensionally extending network of intercommunicating voids constituting the major portion of the volume of the said article, said article being flexible and readily compressible and, upon release of pressure capable of recovering substantially completely to its initial form, the interstices between adjacent fibers being open and substantially unfilled by binder or abrasive, ii) a polymeric flexible foam selected from the group consisting of urethane, polypropylene, polyethylene, polyvinyl alcohol, silicone rubber, neoprene and natural rubber latex of density between about 0.015 g/cm 3 and about 0.1 g/cm 3 , iii) woven fabrics of natural and synthetic fibers selected from the group consisting of terry, duck, twill, oznaberg, and leno of surface density between about 100 g/m 2 and about 410 g/m 2 , iv) non-woven fabrics of natural and synthetic fibers selected from the group consisting of spunbonded, fibre entangled, thermal and chemical bonded and needle punched of surface density between about 75 g/m 2 and about 285 g/m 2 and v) high wet strength, substantially water resistant papers of the kraft or zinc chloride treated type of surface density from about 100 g/m 2 to about 1 kg/m 2 , and abrasive particles selected from the group consisting of finely divided copper base alloy, iron, nickel base alloy, spherical glass beads, steel or mineral distributed upon and within said substrate firmly bonded to the substrate fibers by a relatively hard binder, wherein said abrasive is defined by any one of the measures of hardness selected from the group of measures consisting of: ______________________________________ a) Mho's 4.5-6.3 b) Rockwell B 60-85 c) Brinell 95-142 d) Knoop 120-180 ______________________________________ and a fatty acid or wax solid at room temperature.