Pre-loaded floor wipes with improved pickup

Patent metadata

Field	Value
Publication number	US-10843233-B2
Application number	US-201815964800-A
Country	US
Kind code	B2
Filing date	Apr 27, 2018
Priority date	Apr 27, 2018
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A pre-loaded cleaning substrate, and related systems and methods for picking up particles with an aspect ratio (L/D) greater than 300 (e.g., hair), or greater than 1200 (e.g., particularly long hairs). The substrate (e.g., a nonwoven) may include only a single layer of material. The pre-loaded substrate is loaded (e.g., during manufacture) with a cleaning composition. The fibers of the substrate may have an average diameter less than 15 μm, the substrate may have an air permeability of 35 ft3/min to 75 ft3/min, and the liquid cleaning composition may have a surface tension of less than about 50 dynes/cm. Together, the combination of the particular substrate and cleaning composition may facilitate markedly improved ability to pick up high L/D aspect ratio particle debris (e.g., such as hair), while retaining such particles (e.g., providing hair retention index values of at least 20).

First claim

The invention claimed is:

1. A method for cleaning a surface, the method comprising the steps of:
(i) providing a cleaning implement comprising:
(a) a handle;
(b) a cleaning head attached to said handle;
(c) a disposable cleaning substrate pre-loaded with a cleaning composition having a surface tension of less than 50 dynes/cm;

(ii) attaching the disposable cleaning substrate to the cleaning head;
(iii) mopping said surface to be cleaned with said cleaning substrate;
(iv) picking up more than 60% of particles with a L/D aspect ratio of at least 3000 onto the cleaning substrate; and
(v) removing the cleaning substrate from the cleaning head after the surface is cleaned;
wherein the cleaning substrate loaded with the cleaning composition has a retention index greater than 20 and an air permeability of greater than 45 ft 3 /min.

2. The method of claim 1 , wherein the disposable cleaning substrate comprises fibers having an average fiber diameter of about 10 μm-15 μm.

3. The method of claim 1 , wherein the disposable cleaning substrate has a stiffness of about 100 mg·cm to about 1000 mg·cm.

4. The method of claim 1 , wherein the disposable cleaning substrate has an air permeability of greater than 45 ft 3 /min to about 75 ft 3 /min.

5. The method of claim 1 , wherein the disposable cleaning substrate has an average surface roughness of greater than 400 μm.

6. The method of claim 1 , the method further comprising picking up more than 60% of particles with a Lip aspect ratio of at least 1200 onto the cleaning substrate.

7. The method of claim 1 , wherein the disposable cleaning; substrate is a single layer substrate.

8. The method of claim 1 , wherein the disposable cleaning substrate has a basis weight of greater than 100 g/m 2 and an air permeability of at least 46 ft 3 /min.

Assignees

• Clorox Co

Inventors

• Jha Ashish K
• Dani Nikhil P
• Scheuing David R
• Falk Nancy A
• Parrish Bryan K

Classifications

• B08B1/14

  Wipes; Absorbent members, e.g. swabs or sponges (with integrated means for dispensing fluids B08B1/40) · CPC title

• B08B1/143

  Wipes · CPC title

• C11D17/049 Primary

  Cleaning or scouring pads; Wipes · CPC title

• C11D3/43

  Solvents · CPC title

• A47L13/20

  Mops · CPC title