Non-wovens with high interfacial pore size and method of making same

Patent metadata

Field	Value
Publication number	US-9315929-B2
Application number	US-23741908-A
Country	US
Kind code	B2
Filing date	Sep 25, 2008
Priority date	Sep 28, 2007
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A Nonwoven fibrous structures with a high interfacial pore size and substrates made therefrom are provided. The substrates may be used, for example, in wipes. In one embodiment, the wipes include a hydromolded pattern on one side. The hydromolded pattern has an average pore-size of the interface between two stacked wipes that is greater than 180 microns in radius. In addition, a method for manufacturing nonwoven fibrous structures with high interfacial pore size is also provided.

First claim

What is claimed is:

1. A wipes container comprising:
a first wipe comprising a first face and a second face, the first face of the first wipe comprising a hydromolded pattern thereon;
a second wipe comprising a first face and a second face, the first face of the second wipe comprising a hydromolded pattern thereonto;
wherein the first and second wipes comprise lotion;
wherein the first and second wipes are at least partially overlapped such that at least a portion of the second face of the first wipe is in contact with the second face of the second wipe; and
wherein an average interfacial pore-size of the first and second wipes is greater than 300 microns in radius and less than 700 microns in radius,
wherein the hydromolded pattern of the first wipe is formed on the first face via a continuous raised portion interspersed with a plurality of discrete recessed portions.

2. The wipes container of claim 1 , wherein the raised portion is at least about 20% of the surface area of the first face.

3. The wipes container of claim 1 , wherein the raised portion is at least about 40% of the surface area of the first face.

4. The wipes container of claim 1 , wherein the raised portion is at least about 50% of the surface area of the first face.

5. The wipes container of claim 1 , wherein at least one shape of the recessed portion is selected from the group consisting of a circle, a square, a rectangle, an oval, a triangle, an octagon, and a droplet.

6. The wipes container of claim 1 , wherein a thickness of the raised portion is at least about 5% greater than a thickness of the recessed portion.

7. The wipes container of claim 1 , wherein the pattern design prevents nesting.

8. The wipes container of claim 1 , wherein the first wipe and the second wipe further comprises cotton fibers.

9. The wipes container of claim 1 , wherein the first wipe and the second wipe each have an average pore size, and wherein the average interfacial pore size is greater than the average pore size of the first and second wipes.

10. A container of wipes comprising:
a housing; and
a plurality of wipes at least partially overlapping one another and contained at least partially within the housing, each of the wipes having a first surface and an opposing second surface;

wherein the first surface of the wipes includes a raised portion and a plurality of recessed portions forming a pattern on the first surface of the wipes; and
the pattern on the first surface of the wipes prevents the raised portions of a first wipe from nesting within the plurality of recessed portions of a second wipe, wherein the second wipe is overlapping with the first wipe, such that at least a portion of the second surface of the first wipe is in contact with the second surface of the second wipe,
wherein an average interfacial pore-size of the first and second wipes is greater than 300 microns in radius and less than 700 microns in radius, and
wherein the raised portion is continuous and the recessed portions are discontinuous.

11. The container of wipes of claim 10 wherein the raised portion comprises at least 20% of the area of the surface.

12. The container of wipes of claim 10 wherein the raised portion comprises at least 40% of the area of the surface.

13. The container of wipes of claim 10 wherein the raised portion comprises at least 50% of the area of the surface.

14. The wipes container of claim 10 , wherein the wipes are interleaved with a Z-fold pattern.

Assignees

• Sheehan Astrid Annette
• Procter & Gamble

Inventors

• Sheehan Astrid Annette

Classifications

• A47K2010/3266

  Wet wipes · CPC title

• D10B2201/24

  Viscose · CPC title

• D04H1/49 Primary

  entanglement by fluid jet in combination with another consolidation means · CPC title

• D04H1/495

  for formation of patterns, e.g. drilling or rearrangement · CPC title

• A47K2010/428

  Details of the folds or interfolds of the sheets · CPC title