Surface cleaning pad having zoned absorbency and method of making same

• US 7,962,993 B2
• Filed: 09/30/2005
• Issued: 06/21/2011
• Est. Priority Date: 09/30/2005
• Status: Expired due to Fees

• Current Assignee: First Quality Retail Services LLC (First Quality Enterprises LLC)
• Original Assignee: First Quality Retail Services LLC (First Quality Enterprises LLC)
• Inventors: Glaug, Frank S.
• Primary Examiner(s): Hand; Melanie J
• Application Number:
  US11/240,726
• Publication Number:
  US 20070078421A1
• Time in Patent Office: 2,090 Days
• Field of Search: 604/289, 604/290, 604/368, 104/208, 151/18, 152/28
• US Class Current: 15/228
• CPC Class Codes: A47L 13/20 Mops
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: D04H 1/407 containing absorbing substances, e.g. activated carbon
• CPC Class Codes: D04H 1/732 by fluid current, e.g. air-lay

Abstract

A floor cleaning pad is provided having a pad body comprising a cleaning surface configured for contact with a floor to be cleaned and an opposed surface configured to be coupled to a floor cleaning implement. The cleaning surface and the opposed surface defining a thickness of the pad body and superabsorbent polymer particles maintained within a zone of the pad body, and the zone of the superabsorbent polymer particles occupying a portion of the thickness and an area less than an area of the cleaning surface.

Claims

1. A surface cleaning pad configured to be coupled to a cleaning implement, said surface cleaning pad comprising:

a pad body having a cleaning surface configured for contact with a surface to be cleaned and an opposed surface, said cleaning surface and said opposed surface together defining a thickness of said pad body, said pad body comprising width-wise sides;

superabsorbent polymer particles maintained within a zone of said pad body, wherein said zone of said pad body occupies said thickness of said pad body and an area that is contiguous yet less than an area of said cleaning surface of said pad body;

a barrier layer disposed on the opposed surface of the pad body and between the pad body and the cleaning implement, the barrier layer being folded around the width-wise sides of the pad body;

said pad body having a region adjacent said zone, said region being substantially devoid of superabsorbent polymer particles; and

dirt entrapment members disposed on the cleaning surface of the pad body, the dirt entrapment members being folded and adhered to the cleaning surface.

2. The surface cleaning pad of claim 1, wherein said pad body is formed from an airlaid composite.

3. The surface cleaning pad of claim 1, wherein said pad body comprises a plurality of substantially continuous and coextensive filaments.

4. The surface cleaning pad of claim 1, wherein said superabsorbent polymer particles are substantially maintained in the center of the thickness of said pad body.

5. The surface cleaning pad of claim 1 further comprising an attachment member coupled to said opposed surface of said pad body and configured for attachment to a cleaning implement.

6. The surface cleaning pad of claim 1, wherein said zone of said superabsorbent polymer particles occupies a portion of a width of said pad body.

7. The surface cleaning pad of claim 6, said zone of said superabsorbent polymer particles occupies a portion of a length of said pad body.

13. The surface cleaning pad of claim 1, wherein said region of said pad body encompasses the entire pad body not including said zone.

14. The surface cleaning pad of claim 1 further comprising at least two zones including superabsorbent polymer particles, said at least two zones being separated by said region of said pad body.

15. The surface cleaning pad of claim 1, wherein said region of said pad body occupies said thickness of said pad body.

8. A surface cleaning pad comprising:

a pad body having a cleaning surface configured for contact with a surface to be cleaned and an opposed surface configured to be coupled to a cleaning implement, said cleaning surface and said opposed surface together defining a thickness of said pad body, said pad body comprising width-wise sides; and

superabsorbent polymer particles maintained within a zone of said pad body,

a barrier layer disposed on the opposed surface of the pad body and between the pad body and the cleaning implement, the barrier layer being folded around the width-wise sides of the pad body,

wherein said zone of said pad body occupies said thickness of said pad body, said zone of said pad body occupies an area that is contiguous yet less than an area of said cleaning surface of said pad body, and said zone of said pad body is spaced from an edge of said pad body,

said pad body having a region adjacent said zone, said region being substantially devoid of superabsorbent polymer particles; and

dirt entrapment members disposed on the cleaning surface of the pad body, the dirt entrapment members being folded and adhered to the cleaning surface.

9. The surface cleaning pad of claim 8 further comprising a barrier layer positioned between said pad body and the cleaning implement.

10. The surface cleaning pad of claim 9 further comprising an attachment member positioned on said barrier layer that is configured to be releasably coupled to the cleaning implement.

16. The surface cleaning pad of claim 8, wherein said region of said pad body encompasses the entire pad body not including said zone.

17. The surface cleaning pad of claim 8 further comprising at least two zones including superabsorbent polymer particles, said at least two zones being separated by said region of said pad body.

18. The surface cleaning pad of claim 8, wherein said region of said pad body occupies said thickness of said pad body.

11. A surface cleaning pad comprising:

a pad body formed from a unitized airlaid composite including superabsorbent polymer particles maintained within a zone of said pad body, said pad body having a cleaning surface configured for contact with a surface to be cleaned and an opposed surface configured to be coupled to a cleaning implement, said cleaning surface and said opposed surface together defining a thickness of said pad body, said pad body comprising width-wise sides;

a barrier layer disposed on the opposed surface of the pad body and positioned between said pad body and the cleaning implement, the barrier layer being folded around the width-wise sides of the pad body, wherein said zone of said pad body occupies said thickness and an area that is contiguous yet less than an area of said cleaning surface of said pad body, said pad body having a region adjacent said zone, said region being substantially devoid of superabsorbent polymer particles, and

dirt entrapment members disposed on the cleaning surface of the pad body, the dirt entrapment members being folded and adhered to the cleaning surface.

12. The surface cleaning pad of claim 11 further comprising an attachment member positioned on said barrier layer that is configured to be releasably coupled to the cleaning implement.

19. The surface cleaning pad of claim 11, wherein said region of said pad body encompasses the entire pad body not including said zone.

20. The surface cleaning pad of claim 11 further comprising at least two zones including superabsorbent polymer particles, said at least two zones being separated by said region of said pad body.

21. The surface cleaning pad of claim 11, wherein said region of said pad body occupies said thickness of said pad body.