Fibrous structures with shaped polymer particles

Patent metadata

Field	Value
Publication number	US-10920376-B2
Application number	US-201816200722-A
Country	US
Kind code	B2
Filing date	Nov 27, 2018
Priority date	Dec 26, 2017
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A textured substrate comprising: a first side comprising discrete regions and a continuous region extending between the discrete regions and a second side comprising discrete portions corresponding to the discrete regions and a continuous portion corresponding to the continuous region and a second side comprising discrete portions corresponding to the discrete regions and a continuous portion corresponding to the continuous region. Each discrete region comprises an outer section and sidewall sections extending outwardly from the adjacent continuous region to the outer section. Polymer particles are deposited on at least one of the first side or the second side. At least a section of each polymer particle defines a raised edge.

First claim

What is claimed is:

1. A textured substrate comprising:
a first side comprising discrete regions and a continuous region extending between the discrete regions, each discrete region comprising an outer section and sidewall sections extending outwardly from the adjacent continuous region to the outer section;
a second side comprising discrete portions corresponding to the discrete regions and a continuous portion corresponding to the continuous region; and
polymer particles deposited on at least one of the first side or the second side, wherein:
when the polymer particles are deposited on the first side, the polymer particles are substantially deposited on the outer sections of the discrete regions and do not extend to the adjacent continuous region;
when the polymer particles are deposited on the second side, the polymer particles are substantially deposited on the continuous portion and do not extend to the adjacent discrete portions; and
at least a section of each of the polymer particles defines a raised edge.

2. The textured substrate of claim 1 , wherein one or more of the polymer particles has a Vickers hardness of from about 4 kg/mm 2 to about 20 kg/mm 2 .

3. The textured substrate of claim 1 , wherein one or more of the polymer particles has a perimeter to area ratio of about 1,000 m −1 to about 18,000 m −1 .

4. The textured substrate of claim 1 , further comprising a web material comprising a wet-laid fibrous structure ply.

5. The textured substrate of claim 1 , wherein when the polymer particles are substantially deposited on the outer sections of the discrete regions, each of a plurality of the polymer particles comprises an overhang that extends from the outer section of a respective discrete region and is substantially parallel to a surface plane of the textured substrate.

6. The textured substrate of claim 1 , wherein the polymer particles, in cross-section, comprise a substantially uniform thickness.

7. The textured substrate of claim 1 , wherein the polymer particles, in cross-section, comprise a thickness that varies across at least a portion of the polymer particle.

8. The textured substrate of claim 7 , wherein the polymer particles comprise generally a teardrop shape.

9. A textured substrate comprising:
a first side comprising discrete regions and a continuous region extending between the discrete regions;
a second side comprising discrete portions corresponding to the discrete regions and a continuous portion corresponding to the continuous region; and
polymer particles,
wherein:
one of (i) the discrete regions and the corresponding discrete portions or (ii) the continuous region and the corresponding continuous portion comprises high-density zones;
the other of (i) the discrete regions and the corresponding discrete portions or (ii) the continuous region and the corresponding continuous portion comprises low-density zones;
the polymer particles are substantially deposited on the low-density zones on at least one of the first side or the second side; and
at least a section of each of the polymer particles defines a raised edge.

10. The textured substrate of claim 9 , wherein the discrete regions and the corresponding discrete portions comprise the low-density zones.

11. The textured substrate of claim 9 , wherein the continuous regions and the corresponding continuous portion comprise the low-density zones.

12. The textured substrate of claim 9 , wherein one or more of the polymer particles has a Vickers hardness of from about 4 kg/mm 2 to about 20 kg/mm 2 .

13. The textured substrate of claim 9 , wherein one or more of the polymer particles has a perimeter to area ratio of about 1,000 m −1 to about 18,000 m −1 .

14. The textured substrate of claim 9 , further comprising a web material comprising a wet-laid fibrous structure ply.

15. The textured substrate of claim 9 , wherein a plurality of the polymer particles have generally one of a disc, a full ring, a partial ring, or a horseshoe shape.

16. The textured substrate of claim 9 , wherein each of a plurality of the polymer particles comprises an overhang that extends substantially parallel to a surface plane of the textured substrate.

17. The textured substrate of claim 9 , wherein the polymer particles, in cross-section, comprise a substantially uniform thickness.

18. The textured substrate of claim 9 , wherein the polymer particles, in cross-section, comprise a thickness that varies across at least a portion of the polymer particle.

19. The textured substrate of claim 18 , wherein the polymer particles comprise generally a teardrop shape.

20. The textured substrate of claim 9 , wherein the polymer particles coat at least a portion of individual fibers of the textured substrate, the polymer particles span between the individual fibers, or both.

Assignees

• Procter & Gamble

Inventors

• Kien Kathryn Christian
• Groombridge Michael Leslie
• Gonzales Denis Alfred
• Mcdonnell Michael

Classifications

• D21H27/02 Primary

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

• D21H19/84

  on both sides of the substrate · CPC title

• 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

• D21H27/40 Primary

  at least one of the sheets being non-planar, e.g. crêped (crêping or corrugating paper B31F) · CPC title

• D21H23/50

  Spraying or projecting (D21H23/44, D21H23/66 take precedence) · CPC title