Fibrous structures

Patent metadata

Field	Value
Publication number	US-11970818-B2
Application number	US-202117521174-A
Country	US
Kind code	B2
Filing date	Nov 8, 2021
Priority date	Oct 25, 2016
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A fibrous structure. The structure may include a plurality of continuous or semi-continuous knuckles extending from portions of the surface of the fibrous structure in a parallel path, wherein the plurality of knuckles may be separated by adjacent continuous or semi-continuous pillows. Each knuckle may comprise a plurality of discrete pillows, the plurality of discrete pillows may be arranged in a spaced configuration along the path of each knuckle; alternatively, each pillow may comprise a plurality of discrete knuckles, the plurality of discrete knuckles may be arranged in a spaced configuration along the path of each pillow.

First claim

What is claimed is:

1. A fibrous structure, comprising:
a plurality of MD-oriented knuckles extending from a surface of the fibrous structure in a parallel path, wherein the plurality of MD-oriented knuckles are separated in the CD by MD-oriented pillows;
wherein each MD-oriented knuckle comprises a plurality of discrete pillows, the plurality of discrete pillows are arranged in a spaced configuration along the plurality of MD-oriented knuckles, such that the discrete pillows are formed within side edges of the plurality of MD-oriented knuckles;
wherein the MD-oriented pillows are the same shape as the MD-oriented knuckles;
wherein the MD-oriented knuckles and pillows are rotated at an angle off of machine direction by an angle alpha and wherein the angle alpha is from about two to about five degrees.

2. The fibrous structure of claim 1 , wherein each of the MD-oriented knuckles each have a generally equal width.

3. The fibrous structure of claim 1 , wherein each of the MD-oriented pillows each have a generally equal width.

4. The fibrous structure of claim 1 , wherein the discrete pillows have a circular shape.

5. The fibrous structure of claim 1 , wherein one or more of the discrete pillows has a shape selected from the group consisting of circle, ellipse, oval, triangle, square, and dogbone.

6. The fibrous structure of claim 1 , wherein the fibrous structure comprises two plies.

7. The fibrous structure of claim 1 , wherein the fibrous structure is embossed.

8. The fibrous structure of claim 1 , wherein the fibrous structure is creped.

9. The fibrous structure of claim 1 , wherein the fibrous structure is through air dried.

10. The fibrous structure of claim 1 , wherein the fibrous structure is one of a paper towel or bath tissue.

11. The fibrous structure of claim 1 , wherein the MD-oriented knuckles and pillows are wave-form in shape.

12. The fibrous structure of claim 1 , wherein the MD-oriented knuckles and pillows are continuous.

13. A fibrous structure, comprising:
a plurality of MD-oriented pillows extending from a surface of the fibrous structure in a parallel path, wherein the plurality of MD-oriented pillows are separated in the CD by MD-oriented knuckles;
wherein each MD-oriented pillow comprises a plurality of discrete knuckles, the plurality of discrete knuckles are arranged in a spaced configuration along the plurality of MD-oriented pillows, such that the discrete knuckles are formed within side edges of the plurality of MD-oriented pillows;
wherein the MD-oriented pillows are the same shape as the MD-oriented knuckles;
wherein the MD-oriented knuckles and pillows are rotated at an angle off of machine direction by an angle alpha and wherein the angle alpha is from about two to about five degrees.

Assignees

• Wang Fei
• Barkey Douglas Jay
• Cain James Allen
• Delvecchio Stephen John
• Leimbach Angela Marie
• Piao Kun
• Comer James Kenneth
• Maladen Ryan Dominic
• Procter & Gamble

Inventors

• Wang Fei
• Barkey Douglas Jay
• Cain James Allen
• Delvecchio Stephen John
• Leimbach Angela Marie
• Piao Kun
• Comer James Kenneth
• Maladen Ryan Dominic

Classifications

• D21F11/006 Primary

  Making patterned paper · CPC title

• D21F1/10

  Wire-cloths · CPC title

• D21F3/045

  including at least one extended press nip · CPC title

• D21F5/048

  in combination with other heating means · CPC title

• D21F5/181

  on Yankee cylinder · CPC title