Pre-loaded floor wipes with improved pickup

Patent metadata

Field	Value
Publication number	US-11975366-B2
Application number	US-202217987173-A
Country	US
Kind code	B2
Filing date	Nov 15, 2022
Priority date	Apr 27, 2018
Publication date	May 7, 2024
Grant date	May 7, 2024

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 ft 3 /min to 75 ft 3 /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 pre-loaded cleaning substrate comprising,
(i) a substrate with a basis weight of greater than 100 g/m 2 and an air permeability of at least 46 ft 3 /min; and
(ii) a cleaning composition loaded onto the substrate comprising:
(a) a quaternary ammonium compound; and
(b) a surface tension modifier comprising at least one of a glycol ether, an alcohol, or an amine oxide; and
(c) water,

wherein the pre-loaded cleaning substrate comprises fibers with an average fiber diameter of about 10 μm to about 15 μm, wherein the pre-loaded cleaning substrate picks up more than 80% of particles with an L/D aspect ratio of at least 3000;
wherein the pre-loaded cleaning substrate has a retention index greater than 20 and the cleaning composition has a surface tension of less than 40 dynes/cm.

2. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate has an air permeability from 46 ft 3 /min to about 75 ft 3 /min.

3. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate has an air permeability from 46 ft 3 /min to about 60 ft 3 /min.

4. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate is a single layer substrate.

5. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate has an average surface roughness of at least 400 μm and picks up more than 50% of particles with a L/D aspect ratio between about 300 and about 3000.

6. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate has an average surface roughness of at least 400 μm and picks up more than 80% of particles with a L/D aspect ratio between about 300 and about 1200.

7. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate comprises two or more layers comprising a surface contact layer and a backing layer, wherein the surface contact layer comprises fibers with an average fiber diameter of about 10 μm to about 15 μm and the pre-loaded cleaning substrate has an air permeability from 46 ft 3 /min to about 60 ft 3 /min and an average surface roughness of at least 400 μm.

8. The pre-loaded cleaning substrate of claim 1 , wherein the cleaning substrate has an average surface roughness of at least 450 μm.

9. The pre-loaded cleaning substrate of claim 1 , wherein the cleaning substrate has an average surface roughness of at least 400 μm.

10. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate picks up more than 40% of particles with a L/D aspect ratio of at least 1200.

11. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate picks up more than 60% of particles with a L/D aspect ratio of at least 1200.

12. The pre-loaded cleaning substrate of claim 1 , wherein the pre-loaded cleaning substrate picks up more than 40% of particles with a L/D aspect ratio of at least 300.

13. A pre-loaded cleaning substrate comprising,
(i) a substrate with a basis weight of greater than 100 g/m 2 and an air permeability of at least 46 ft 3 /min; and
(ii) a cleaning composition loaded onto the substrate comprising:
(c) a quaternary ammonium compound; and
(d) a surface tension modifier comprising at least one of a glycol ether, an alcohol, or an amine oxide; and
(c) water,

wherein the pre-loaded cleaning substrate has a retention index greater than 20 and picks up more than 80% of particles with an L/D aspect ratio of at least 3000;
wherein the cleaning composition has a surface tension of less than 40 dynes/cm.

14. The pre-loaded cleaning substrate of claim 13 , wherein the pre-loaded cleaning substrate is a single layer substrate with a homogeneous fiber composition.

15. The pre-loaded cleaning substrate of claim 13 , wherein the pre-loaded cleaning substrate has a stiffness of about 100 mg cm to about 1000 mg cm.

16. A pre-loaded cleaning substrate comprising,
(i) a substrate with a basis weight of greater than about 100 g/m 2 and an air permeability from about 46 ft 3 /min to about 75 ft 3 /min; and
(ii) a cleaning composition loaded onto the substrate comprising:
(a) a quaternary ammonium compound; and
(b) a surface tension modifier comprising at least one of a glycol ether, an alcohol, or an amine oxide; and
(c) water,

wherein the pre-loaded cleaning substrate comprises fibers with an average fiber diameter of about 10 μm to about 15 μm, wherein the pre-loaded cleaning substrate picks up more than about 80% of particles with an L/D aspect ratio of at least 3000;
wherein the pre-loaded cleaning substrate has a retention index greater than 20 and the cleaning composition has a surface tension of less than 40 dynes/cm.

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 Primary

  Wipes · CPC title

• C11D17/049 Primary

  Cleaning or scouring pads; Wipes · CPC title

• A47L13/20

  Mops · CPC title

• B08B7/0028

  by adhesive surfaces · CPC title