# US 9,435,081 B2 · Fibrous structures

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- Number: US 9,435,081 B2
- Document ID: US9435081B2
- Status: Granted
- Kind: B2
- Application number: 14/755,011
- Filed: 2015-06-30
- Published: 2015-10-22
- Granted: 2016-09-06
- Earliest claimed: 2008-02-29
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: John Allen Manifold; Charles Chidozie Ekenga; Douglas Jay Barkey; Kathleen Diane Sands; Thorsten Knobloch
- Web page: https://patentgrep.com/patent/US9435081B2

## CPC

- D21H 27/30: Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00)
- A61F 13/15203: {Properties of the article, e.g. stiffness or absorbency (chemical aspects A61L15/00)}
- D21H 11/00: Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- 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)}
- D21H 27/004: {characterised by specific parameters (D21H27/008 takes precedence)}
- D21H 27/02: Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00)
- Y10T 428/24124: Fibers
- Y10T 428/24479: including variation in thickness
- Y10T 428/253: Cellulosic [e.g., wood, paper, cork, rayon, etc.]
- 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
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Fibrous structures that exhibit a cross machine direction total energy absorption (CDTEA) of greater than 8 cm-g/cm2 as measured according to the TEA Test Method.

## Claims

### Claim 1

A through-air-dried fibrous structure formed on a through-air-drying molding member comprising a resinous framework, wherein the fibrous structure comprises a temporary wet strength agent and is void of permanent wet strength agents, and exhibits a CD TEA of greater than 8 cm-g/cm2 as measured according to the TEA Test Method and a Dry Burst of less than 740 g as measured according to the Dry Burst Test Method.

### Claim 2 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure comprises a three-dimensional pattern imparted to it by the resinous framework of the through-air-drying molding member.

### Claim 3 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Dry Burst of greater than about 100 g as measured according to the Dry Burst Test Method.

### Claim 4 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Dry Burst of from about 370 g to about 740 g as measured according to the Dry Burst Test Method.

### Claim 5 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a CD TEA of greater than about 8.2 cm-g/cm2 as measured according to the TEA Test Method.

### Claim 6 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a CD TEA of greater than about 8.5 cm-g/cm2 as measured according to the TEA Test Method.

### Claim 7 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure comprises cellulosic pulp fibers.

### Claim 8 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure comprises at least one uncreped fibrous structure ply.

### Claim 9 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure exhibits a basis weight of greater than 15 gsm to about 120 gsm as measured according to the Basis Weight Test Method.

### Claim 10 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure further comprises a non-linear element embossment.

### Claim 11 (depends on 1)

The fibrous structure according to claim 1 wherein the fibrous structure is a sanitary tissue product.

### Claim 12 (depends on 10)

The fibrous structure according to claim 10 wherein the sanitary tissue product is in roll form.

### Claim 13 (depends on 1)

A multi-ply fibrous structure comprising a fibrous structure according to claim 1.