IP Library Granted Patent US 7,624,468
Granted Patent B2
US 7,624,468 · App. 11/458,110 · Granted Dec 1, 2009

Wet mop with multi-layer substrate

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Quick Facts
Patent No.
US 7,624,468
App. No.
11/458,110
Granted
Dec 1, 2009
Kind
B2
Abstract

A wet mop head assembly for use with a mop handle is disclosed. The mop head includes a laminate mop substrate having a first layer of scrubbing material, a second layer of scrubbing material and an absorbent foam layer sandwiched between the scrubbing material layers. At least one bond is present to join the scrubbing and absorbent foam layers together.

Claims (33)

1. A multi-layer laminate substrate strip adapted for use with a cleaning article, the multi-layer laminate substrate strip comprising:

a strip comprising a pair of opposed strip side edges, a pair of opposed strip end edges, a first side, a second side, and an absorbent foam layer,

wherein the first side comprises a first layer of scrubbing material and a first face of the strip, the first face configured to be positioned against a surface,

wherein the second side comprises a second layer of scrubbing material and a second face of the strip, the second face configured to be positioned against a surface,

wherein the absorbent foam layer is positioned between the first side and the second side such that the first face and the second face of the strip are outwardly facing,

wherein the first layer, the absorbent foam layer and the second layer are joined together by at least one or more bonds positioned between the opposing strip side edges such that portions of the absorbent foam layer are exposed at the strip side edges, and

wherein the one or more bonds extend from the strip end edge and centrally along the substrate strip.

2. The substrate strip of claim 1 , wherein the first layer of scrubbing material comprises a nonwoven material.

3. The substrate strip of claim 2 , wherein the first layer of scrubbing material comprises a high pulp content hydraulically entangled nonwoven composite fabric, the composite fabric comprising from about 1 to about 25 percent, by weight, of a continuous filament nonwoven fibrous web and more than about 70 percent, by weight, of a fibrous material consisting of pulp fibers.

4. The substrate strip of claim 1 , wherein the absorbent foam layer comprises an open-cell, absorbent thermoplastic foam.

5. The substrate strip of claim 1 , wherein the absorbent foam layer comprises an absorbent thermoset foam.

6. The substrate strip of claim 1 , wherein at least one of the first layer of scrubbing material, the absorbent foam layer, and the second layer of scrubbing material further comprises a functional substance, wherein the functional substance is configured to be transferable to a surface.

7. The substrate strip of claim 6 , wherein the functional substance is selected from the group comprising a surfactant, a soap, a cleanser, a degreaser, a disinfectant, a sanitizer, a surface-protective wax, a glass cleaner, a surface polish, and an insecticide.

8. A cleaning article comprising:

a plurality of substrate strips;

a handle; and

a head mount configured to couple with the handle,

wherein the plurality of the strips are coupled with the head mount,

wherein each of the strips of the plurality comprise a pair of opposed strip side edges, a pair of opposed strip end edges, a first side, a second side, and an absorbent foam layer,

wherein the first side comprises a first layer of scrubbing material and a first face of the strip, the first face configured to be positioned against a surface,

wherein the second side comprises a second layer of scrubbing material and a second face of the strip, the second face configured to be positioned against a surface,

wherein the absorbent foam layer is positioned between the first side and the second side such that the first face and the second face of the strip are outwardly facing, and

wherein the first layer, the absorbent foam layer and the second layer are joined together by at least one or more bonds positioned between the opposing strip side edges such that portions of the absorbent foam layer are exposed at the strip side edges.

9. The cleaning article of claim 8 , wherein each of the plurality of strips comprises a mounting surface positioned centrally between the opposed strip end edges, wherein the mounting surface of each of the plurality of strips is configured to be coupled with the head mount.

10. The cleaning article of claim 9 , wherein the plurality of strips are configured such that the mounting surfaces of each of the strips are superimposed.

11. The cleaning article of claim 9 , wherein the plurality of strips are positioned next to each other and aligned side by side along strip side edges thereof, and wherein the mounting surfaces of the plurality of strips are aligned.

12. The cleaning article of claim 9 , wherein the first layer of scrubbing material, the absorbent foam layer, and the second layer of scrubbing material of each of the substrate strips are joined together by one or more bonds extending transversely between the opposed strip end edges, the bonds positioned centrally between the opposed strip side edges of each of the substrate strips.

13. The cleaning article of claim 8 , wherein first layer of scrubbing material comprises a nonwoven material.

14. The cleaning article of claim 13 , wherein the first layer of scrubbing material comprises a high pulp content hydraulically entangled nonwoven composite fabric, the composite fabric comprising from about 1 to about 25 percent, by weight, of a continuous filament nonwoven fibrous web and more than about 70 percent, by weight, of a fibrous material consisting of pulp fibers.

15. The cleaning article of claim 8 , wherein the absorbent foam layer comprises an open-cell, absorbent thermoplastic foam.

16. The cleaning article of claim 8 , wherein the absorbent foam layer comprises an absorbent thermoset foam.

17. The cleaning article of claim 8 , wherein at least one of the first layer of scrubbing material, the absorbent foam layer, and the second layer of scrubbing material further comprises a functional substance, wherein the functional substance is configured to be transferable to a surface.

18. The cleaning article of claim 17 , wherein the functional substance is selected from the group comprising a surfactant, a soap, a cleanser, a degreaser, a disinfectant, a sanitizer, a surface-protective wax, a glass cleaner, a surface polish, and an insecticide.

Assignments (2)
NAME CHANGE Recorded Feb 3, 2015
From: KIMBERLY-CLARK WORLDWIDE, INC.
To: KIMBERLY-CLARK WORLDWIDE, INC.
Reel/Frame 034880/0704 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2006
From: REDDY, KIRAN K.; RANGANATHAN, SRIDHAR; BAKER, JOSEPH K.; MORRIS, CAMERON RAY; ROSSIGNOL, STEPHANIE ANN; CLEMENT, ANDREW; NUKUTO, GEORGE; GRIMARD, DENIS R.; RIPPL, CARL G.; LEE, MEE WHA; WOON, PAUL; KROLL, RUSSELL J.; LONDBORG, MARK; HENSHAW, ROBERT; RADWANSKI, FRED ROBERT; COLMAN, CHARLES WILSON
To: KIMBERLY-CLARK WORLDWIDE, INC.
Reel/Frame 018392/0297 →