# US 11,896,179 B2 · Compressible pre-moistened fibrous structures

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- Number: US 11,896,179 B2
- Document ID: US11896179B2
- Status: Granted
- Kind: B2
- Application number: 17/118,660
- Filed: 2020-12-11
- Published: 2021-04-01
- Granted: 2024-02-13
- Earliest claimed: 2015-12-18
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Fei Wang; Michael Donald Suer; John Daniel Algers; Steven Lee Barnholtz; Douglas Jay Barkey; Christopher Michael Young; Hailing Bao; Cunming Song; Antonius Lambertus DeBeer; David John Pung; Paul Thomas Weisman; Timothy James Klawitter
- Web page: https://patentgrep.com/patent/US11896179B2

## CPC

- A47L 13/17: containing cleaning agents (A47L13/19 takes precedence {; chemical compositions C11D17/049})
- C11D 17/049: {Cleaning or scouring pads; Wipes}
- D21H 27/002: {Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00)}
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR

## Abstract

Fibrous structures containing filaments and optionally, solid additives, wherein the pre-moistened fibrous structures exhibit wet compressive modulus values that are superior to known pre-moistened fibrous structures as measured according to the Wet Compressive Modulus Test Method described herein and methods for making same are provided.

## Claims

### Claim 1

A method for making a pre-moistened fibrous structure, the method comprising the steps of:
a. providing a fibrous structure comprising a core component and a scrim component, wherein the fibrous structure comprises thermoplastic polymer scrim filaments;
b. imparting deformations to at least one surface of the fibrous structure, wherein the fibrous structure comprises a consolidated region comprising fused thermoplastic polymer filaments present on at least one surface of the fibrous structure; and
c. applying a liquid composition to the fibrous structure to form a pre-moistened fibrous structure such that the pre-moistened fibrous structure exhibits the following:
i. a b/Basis Weight *100 value of greater than 1.50 mm/gsm as measured according to the Wet Compressive Modulus Test Method;
ii. a m value of less than −0.25 slope mm as measured according to the Wet Compressive Modulus Test Method; and
iii. a (b1−Tmax)/Tmax value of greater than 1.25 as measured according to the Wet Compressive Modulus Test Method.

### Claim 2 (depends on 1)

The method according to claim 1 wherein the core component comprises a plurality of core component filaments and a plurality of core component solid additives.

### Claim 3 (depends on 1)

The method according to claim 1 wherein the thermoplastic polymer scrim filaments are present in the fibrous structure at a basis weight of 10 gsm or less as measured according to the Fibrous Structure Basis Weight Test Method, adjacent to the core component.

### Claim 4 (depends on 2)

The method according to claim 2 wherein the plurality of core component filaments and thermoplastic polymer scrim filaments are present in the fibrous structure at a level of less than 90% by weight of the fibrous structure on a dry basis.

### Claim 5 (depends on 2)

The method according to claim 2 wherein the plurality of core component filaments and thermoplastic polymer scrim filaments are present in the fibrous structure at a level of greater than 5% by weight of the fibrous structure on a dry basis.

### Claim 6 (depends on 2)

The method according to claim 2 wherein the plurality of solid additives are present in the fibrous structure at a level of greater than 10% by weight of the fibrous structure on a dry basis.

### Claim 7 (depends on 2)

The method according to claim 2 wherein the plurality of core component filaments and the plurality of solid additives are commingled together.

### Claim 8 (depends on 2)

The method according to claim 2 wherein at least one of the plurality of core component filaments comprises a thermoplastic polymer.

### Claim 9 (depends on 2)

The method according to claim 2 wherein at least one of the plurality of solid additives comprise fibers.

### Claim 10 (depends on 1)

The method according to claim 1 wherein the fibrous structure comprises at least two regions that exhibit different values of a common micro-CT intensive property as measured according to the Micro-CT Test Method.

### Claim 11 (depends on 10)

The method according to claim 10 wherein the common micro-CT intensive property is selected from the group consisting of: micro-CT basis weight, micro-CT thickness, micro-CT density, and combinations thereof as measured according to the Micro-CT Test Method.

### Claim 12 (depends on 10)

The method according to claim 10 wherein the common micro-CT intensive property is micro-CT basis weight.

### Claim 13 (depends on 1)

The method according to claim 1 wherein the pre-moistened fibrous structure exhibits a b/Basis Weight *100 value of greater than 1.60 mm/gsm as measured according to the Wet Compressive Modulus Test Method.

### Claim 14 (depends on 13)

The method according to claim 13 wherein the pre-moistened fibrous structure exhibits a b/Basis Weight *100 value of greater than 1.70 mm/gsm as measured according to the Wet Compressive Modulus Test Method.

### Claim 15 (depends on 1)

The method according to claim 1 wherein the pre-moistened fibrous structure exhibits a m value of less than −0.27 slope mm as measured according to the Wet Compressive Modulus Test Method.

### Claim 16 (depends on 15)

The method according to claim 15 wherein the pre-moistened fibrous structure exhibits a m value of less than −0.29 slope mm as measured according to the Wet Compressive Modulus Test Method.

### Claim 17 (depends on 1)

The method according to claim 1 wherein the pre-moistened fibrous structure exhibits a (b1−Tmax)/Tmax value of greater than 1.30 as measured according to the Wet Compressive Modulus Test Method.

### Claim 18 (depends on 17)

The method according to claim 17 wherein the pre-moistened fibrous structure exhibits a (b1−Tmax)/Tmax value of greater than 1.35 as measured according to the Wet Compressive Modulus Test Method.

### Claim 19 (depends on 1)

The method according to claim 1 wherein the pre-moistened fibrous structure forms at least a part of a wet wipe.

### Claim 20 (depends on 1)

The method according to claim 1 wherein the pre-moistened fibrous structure forms at least a part of a floor cleaning pad.