Pre-loaded floor wipes with improved pickup

Patent metadata

Field	Value
Publication number	US-11433431-B2
Application number	US-202016851418-A
Country	US
Kind code	B2
Filing date	Apr 17, 2020
Priority date	Apr 27, 2018
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

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 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 surface tension modifier; and
(b) 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 a cleaning composition surface tension 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 60 ft 3 /min.

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

4. 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.

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 80% of particles with a L/D aspect ratio between about 300 and about 1200.

6. 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-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.

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

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

• A47L13/17

  containing cleaning agents (A47L13/19 takes precedence {; chemical compositions C11D17/049}) · CPC title

• A47L13/20

  Mops · CPC title