IP Library Granted Patent US 12,214,101
Granted Patent B2
US 12,214,101 · App. 18/452,111 · Granted Feb 4, 2025

Pre-saturated disinfecting disposable microfiber wipes

Inventors: Weidong Wu (Charlotte, NC); Brian Smallwood (Huntersville, NC); Dimple Bhesania (Concord, NC); Dan Troutman (Palm Beach Gardens, FL)
Assignee: Rubbermaid Commercial Products LLC
A61L2/26A61L2/18B08B1/143D05B93/00A61L2101/18D10B2331/04D10B2401/02D10B2401/063D10B2503/00
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Quick Facts
Patent No.
US 12,214,101
App. No.
18/452,111
Granted
Feb 4, 2025
Kind
B2
Abstract

A pre-saturated disposable disinfecting wipe may include a microfiber cloth. The microfiber cloth may include a low weight substrate having a first face and an opposed second face, and microfiber yarn attached to the low weight substrate in a plurality of parallel rows of stitches. The pre-saturated disposable disinfecting wipe further includes a disinfecting formulation saturated in the microfiber cloth. The pre-saturated disposable disinfecting wipe may have a single-touch two-minute wetness coverage of more than 100 in 2 . A method of manufacturing a pre-saturated disposable disinfecting wipe may include saturating, with a disinfecting formulation, a microfiber cloth.

Claims (33)

1. A pre-saturated disposable disinfecting wipe, comprising:

a microfiber cloth comprising:

a low weight substrate having a first face and an opposed second face; and

microfiber yarn attached to the low weight substrate in a plurality of parallel rows of stitches; and

a disinfecting formulation saturated in the microfiber cloth;

wherein the microfiber yarn comprises between 100 and 200 microfiber filaments and has a denier of between 50 and 100; and

wherein the plurality of parallel rows of stitches are spaced between 0.5 mm and 3 mm apart.

2. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the disinfecting formulation comprises alcohol, quaternary ammonium chloride (QUAT), quaternary ammonium chloride (QUAT) and alcohol, chlorine bleach, citric acid, peroxygens such as hydrogen peroxide, or peracetic acid.

3. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber yarn is attached to the low weight substrate by sewing the microfiber yarn such that the stitches are straight stitches that are substantially flush with the first and second faces of the substrate.

4. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber yarn is attached to the low weight substrate by stitch-bonding the microfiber yarn onto the low weight substrate.

5. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber cloth is formed of a single layer of the low weight substrate and the microfiber yarn.

6. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber cloth has a weight of about 10 g/m 2 to about 150 g/m 2 .

7. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber cloth has a weight of about 45 g/m 2 to about 65 g/m 2 .

8. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber cloth is saturated with the disinfecting formulation in an amount between 3.5 times and 4.5 times a dry weight of the microfiber cloth.

9. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the pre-saturated disposable wipe displays a tensile strength measured in a direction parallel to the stitches of greater than 30 pounds.

10. The pre-saturated disinfecting wipe of claim 1 , wherein the pre-saturated disposable disinfecting wipe displays a tensile strength measured in a direction perpendicular to the stitches of greater than 10 pounds.

11. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the pre-saturated disposable disinfecting wipe is effective to keep a surface area completely wet with the disinfecting formulation for more than 3 minutes after a single application of the wipe to the surface area.

12. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the pre-saturated disposable disinfecting wipe displays the ability to keep more than 30 times a surface area of the wipe on a surface wet with the disinfecting formulation for more than 3 minutes using multiple applications of the wipe to the surface.

13. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the microfiber yarn has a denier of between 65 and 85.

14. The pre-saturated disposable disinfecting wipe of claim 1 , wherein the pre-saturated disposable disinfecting wipe has an abrasion resistance of more than 10 cycles.

15. A method of manufacturing a pre-saturated disposable disinfecting wipe, comprising:

providing a low weight substrate having a first face and an opposed second face;

attaching a microfiber yarn to the low weight substrate in a plurality of parallel rows of stitches; and

saturating the microfiber cloth with a disinfecting formulation;

wherein the microfiber yarn comprises between 100 and 200 microfiber filaments and has a denier of between 50 and 100; and

wherein the pre-saturated disposable disinfecting wipe comprises 50 to 500 stitches per square inch.

16. The method of claim 15 , wherein the attaching comprising sewing the microfiber yarn such that the stitches are straight stitches that are substantially flush with the first and second faces of the substrate.

17. The method of claim 16 , wherein the sewing is performed on a multiline sewing machine.

18. The method of claim 15 , wherein the attaching comprises stitch-bonding the microfiber yarn onto the low weight substrate.

19. The method of claim 15 , wherein the microfiber cloth is saturated with the disinfecting formulation in an amount of between 3.5 times and 4.5 times of a dry weight of the microfiber cloth.

20. The method of claim 15 , wherein the microfiber cloth is saturated with the disinfecting formulation in an amount greater than 6.0 times a dry weight of the microfiber cloth.

21. The method of claim 15 , wherein the disinfecting formulation comprises alcohol, quaternary ammonium chloride (QUAT), quaternary ammonium chloride (QUAT) and alcohol, chlorine bleach, citric acid, peroxygens such as hydrogen peroxide, or peracetic acid.

22. The method of claim 15 , wherein the pre-saturated disposable disinfecting wipe has an abrasion resistance of more than 10 cycles.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: WU, WEIDONG; SMALLWOOD, BRIAN; BHESANIA, DIMPLE; TROUTMAN, DAN
To: RUBBERMAID COMMERCIAL PRODUCTS LLC
Reel/Frame 064655/0175 →
Continuity (3)
Continuation 17937755 · Oct 3, 2022
Provisional Application 63253815 · Oct 8, 2021
Related Publication 20230390445A1 · Dec 7, 2023
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