Sanitary tissue products and methods for making same

Patent metadata

Field	Value
Publication number	US-9617684-B2
Application number	US-201615131138-A
Country	US
Kind code	B2
Filing date	Apr 18, 2016
Priority date	Dec 19, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

Sanitary tissue products employing 3D patterned fibrous structure plies having a surface comprising a novel three-dimensional (3D) pattern such that the 3D patterned fibrous structures and/or sanitary tissue products employing the fibrous structures exhibit novel cushiness as evidenced by compressibility of the fibrous structures and/or sanitary tissue products, novel flexibility as evidenced by plate stiffness of the fibrous structures and/or sanitary tissue products, and/or surface smoothness as evidenced by slip stick coefficient of friction of the fibrous structures and/or sanitary tissue products, and methods for making same, are provided.

First claim

What is claimed is:

1. A sanitary tissue product comprising a 3D patterned fibrous structure ply having a surface comprising a 3D pattern that comprises a first series of line elements such that the sanitary tissue product exhibits a Compressibility of greater than 36 mils/(log(g/in 2 )) as measured according to the Stack Compressibility Test Method.

2. The sanitary tissue product according to claim 1 wherein at least one of the line elements of the first series of line elements exhibits an amplitude of less than 190 mils.

3. The sanitary tissue product according to claim 1 wherein at least one of the line elements of the first series of line elements exhibits a frequency of greater than 2.

4. The sanitary tissue product according to claim 1 wherein at least one of the line elements of the first series of line elements exhibits a wavelength of less than 2000 mils.

5. The sanitary tissue product according to claim 1 wherein the line elements are parallel to one another.

6. The sanitary tissue product according to claim 1 wherein the line elements are non-parallel to one another.

7. The sanitary tissue product according to claim 1 wherein the line elements are spaced from one another from about 5 to about 100 mils.

8. The sanitary tissue product according to claim 1 wherein a second series of line elements are positioned complementary to the first series of line elements.

9. The sanitary tissue product according to claim 8 wherein the first series of line elements exhibits a different value of a common intensive property than the second series of line elements.

10. The sanitary tissue product according to claim 9 wherein the common intensive property is selected from the group consisting of: density, basis weight, elevation, opacity, crepe frequency, and combinations thereof.

11. The sanitary tissue product according to claim 1 wherein the first series of line elements may be arranged in a 3D pattern selected from the group consisting of: periodic patterns, aperiodic patterns, straight line patterns, curved line patterns, wavy line patterns, snaking patterns, square line patterns, triangular line patterns, S-wave patterns, sinusoidal line patterns, and mixtures thereof.

12. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply comprises pulp fibers.

13. The sanitary tissue product according to claim 1 wherein the sanitary tissue product comprises an embossed fibrous structure ply.

14. A method for making a single- or multi-ply sanitary tissue product, wherein the method comprises the steps of:
a. contacting a patterned molding member with a fibrous structure such that a 3D patterned fibrous structure ply having a surface comprising a 3D pattern comprising a first series of line elements is formed; and
b. making a single- or multi-ply sanitary tissue product comprising the 3D patterned fibrous structure ply such that the sanitary tissue product exhibits a Compressibility of greater than 36 mils/(log(g/in 2 )) as measured according to the Stack Compressibility Test Method is formed.

15. A method for making a single- or multi-ply sanitary tissue product, wherein the method comprises the steps of:
a. contacting a patterned molding member with a fibrous structure such that a 3D patterned fibrous structure ply having a surface comprising a 3D pattern comprising a first series of line elements that are oriented at an angle of less than 20° with respect to the cross-machine direction of the 3D patterned fibrous structure ply is formed; and
b. making a single- or multi-ply sanitary tissue product comprising the 3D patterned fibrous structure ply such that the sanitary tissue product exhibits a Compressibility of greater than 36 mils/(log(g/in 2 )) as measured according to the Stack Compressibility Test Method is formed.

16. A method for making a single- or multi-ply sanitary tissue product, wherein the method comprises the steps of:
a. contacting a patterned molding member with a fibrous structure such that a 3D patterned fibrous structure ply having a surface comprising a 3D pattern comprising a first series of line elements wherein at least one of the line elements exhibits an amplitude of less than 190 mils and/or from 0 mils to less than 190 mils and a frequency of greater than 2 is formed; and
b. making a single- or multi-ply sanitary tissue product comprising the 3D patterned fibrous structure ply such that the sanitary tissue product exhibits a Compressibility of greater than 36 mils/(log(g/in 2 )) as measured according to the Stack Compressibility Test Method is formed.

17. A method for making a single- or multi-ply sanitary tissue product, wherein the method comprises the steps of:
a. contacting a patterned molding member with a fibrous structure such that a 3D patterned fibrous structure ply having a surface comprising a 3D pattern comprising a first series of line elements wherein at least one of the line elements exhibits an amplitude of less than 190 mils and/or from 0 mils to less than 190 mils and a wavelength of greater than 0 to less than 2000 mils is formed; and
b. making a single- or multi-ply sanitary tissue product comprising the 3D patterned fibrous structure ply such that the sanitary tissue product exhibits a Compressibility of greater than 36 mils/(log(g/in 2 )) as measured according to the Stack Compressibility Test Method is formed.

Assignees

• Procter & Gamble

Inventors

• Maladen Ryan Dominic
• Manifold John Allen
• Ostendorf Ward William
• Sheehan Jeffrey Glen
• Barkey Douglas Jay

Classifications

• D21H27/002

  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) · CPC title

• D21H27/004 Primary

  characterised by specific parameters (D21H27/008 takes precedence) · CPC title

• D21H27/005

  relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title

• D21H27/02 Primary

  Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) · CPC title

• D21H5/02 Primary

  Patterned paper · CPC title