Cleaning article with double bonded tow tufts

Patent metadata

Field	Value
Publication number	US-11903542-B2
Application number	US-201815943739-A
Country	US
Kind code	B2
Filing date	Apr 3, 2018
Priority date	Apr 3, 2018
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A cleaning article defining an XY plane and a Z direction perpendicular to the plane. The cleaning article has discrete tufts of tow fibers disposed on a carrier sheet. The discrete tufts have bond lines external to the tufts. The bond lines interrupt the Z-direction thickness of the tufts, to provide channels for improved collection and retention of debris from a target surface.

First claim

What is claimed is:

1. A cleaning article bounded by alternating longitudinal and transverse edges defining an XY plane and a Z-direction perpendicular thereto, having a longitudinal axis and comprising:
a carrier sheet having a first side and a second side opposed thereto;
a plurality of discrete spaced apart tufts of tow fibers, wherein said tow fibers are generally aligned in a longitudinal direction and joined to said first side of said carrier sheet by a plurality of primary bonds, wherein said primary bonds are between slits, wherein said slits extend from one primary bond to an adjacent primary bond in a direction transverse to said longitudinal direction, and wherein said slits are through said carrier sheet and said tow fibers; and
a plurality of secondary bonds, each said secondary bond extending continuously throughout said tow fibers across a full width of said tow fibers in a direction transverse to said longitudinal direction, wherein each said secondary bond forms an individual channel.

2. A cleaning article according to claim 1 wherein said plurality of secondary bonds are mutually parallel.

3. A cleaning article according to claim 1 wherein said secondary bonds are rectilinear.

4. A cleaning article according to claim 1 wherein said secondary bonds have a constant width of 2 to 12 mm.

5. A cleaning article according to claim 1 wherein said secondary bonds extend generally perpendicular to said longitudinal axis.

Assignees

• Procter & Gamble

Inventors

• Policicchio Nicola John

Classifications

• A47L13/16 Primary

  Cloths; Pads; Sponges (metal scraping sponges A47L13/07) · CPC title

• A47L13/38 Primary

  Other dusting implements {(using adhesive surfaces A47L25/005)} · CPC title

• D04H1/435

  Polyesters · CPC title

• A47L13/20

  Mops · CPC title

• B32B5/022

  Non-woven fabric · CPC title