Disposable absorbent article having a frangible bonding agent

Patent metadata

Field	Value
Publication number	US-9610202-B2
Application number	US-201414164572-A
Country	US
Kind code	B2
Filing date	Jan 27, 2014
Priority date	Jun 4, 2009
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A disposable absorbent article that includes a frangible bonding agent for maintaining the absorbent article in a predetermined configuration. The frangible bonding agent may be disposed on a fastening system in order to maintain one or more portions of the fastening system in a particular position during manufacturing but still provide an easy-to-open fastener when used by a consumer.

First claim

What is claimed is:

1. A disposable absorbent article comprising:
a mechanical fastening system comprising first and second opposing surfaces, a web, and at least one engaging member joined to the web; and
a frangible bonding agent disposed on a first portion of the first surface of the fastening system;
wherein the engaging member includes a plurality of engaging elements and the web includes a plurality of receiving elements that are engageable with the engaging elements;
wherein the frangible bonding agent is a fugitive hot-melt adhesive that is disposed on and crystallizes on one or more of the receiving elements and comprises a high melt point wax and a low melt point wax.

2. The disposable absorbent article of claim 1 , wherein the fastening system is engaged and has an Initial Opening Force value greater than about 5 N according to the Opening Force Test.

3. The disposable absorbent article of claim 1 , wherein the fastening system is engaged and has an Aged Opening Force value of less than about 5 N.

4. The disposable absorbent article of claim 1 , wherein the fastening system is engaged and has an Initial Modified Opening Force value and an Aged Modified Opening Force, wherein the Aged Modified Opening Force value is less than about 1.6 times greater than the Initial Modified Opening Force value according to the Modified Opening Force Test.

5. The disposable absorbent article of claim 1 , wherein the fastening system is engaged and has an Initial Modified Opening Force value of greater than about 5 N according to the Modified Opening Force Test.

6. The disposable absorbent article of claim 1 , wherein the fastening system is engaged and has an Aged Modified Opening Force value of less than about 5 N according to the Modified Opening Force Test.

7. The disposable absorbent article of claim 1 , wherein at least a portion of the fastening system is folded such that the frangible bonding agent contacts a second portion of the first surface of the fastening system and forms a bond between the first and second portions of the first surface.

8. The disposable absorbent article of claim 1 , wherein the frangible bonding agent is disposed on one or more of the engaging elements.

9. The disposable absorbent article of claim 8 , wherein the frangible bonding agent spans a gap between the engaging elements.

10. The disposable absorbent article of claim 9 , wherein the frangible bonding agent is disposed on the engaging elements such that a first group of engaging elements has the frangible bonding agent disposed thereon and a second group of engaging elements is substantially free of the frangible bonding agent.

11. The disposable absorbent article of claim 1 , wherein the frangible bonding agent is present in a pattern selected from the group consisting of one or more substantially straight lines, an s-shape, a z-shape, a c-shape, a broken line, a t-shape, a cross-shape, spiral-shape, omega-shape, dots and combinations of these.

12. The disposable absorbent article of claim 1 , wherein the engaging member is joined to the fastening system at a base and the frangible bonding agent is not disposed on the base.

13. The disposable absorbent article of claim 1 , wherein the frangible bonding agent is contiguous with at least one edge of the first surface of the fastening system.

14. A disposable absorbent article comprising:
a mechanical fastening system comprising first and second opposing surfaces, a web, and at least one engaging member joined to the web; and
a frangible bonding agent disposed on a first portion of the first surface of the fastening system, wherein the frangible bonding agent is a fugitive hot-melt adhesive that crystallizes and is capable of forming a bond that has an Initial Peel value and an Aged Peel value and the Aged Peel value is less than the Initial Peel value according to the Coupon Peel Test;
and wherein the adhesive comprises a high melt point wax and a low melt point wax.

15. The disposable absorbent article of claim 14 , wherein the mechanical fastening system is a slot/tab type fastening system.

16. The disposable absorbent article of claim 15 , wherein the frangible bonding agent is disposed on at least one of the tab and the slot.

17. A disposable diaper, comprising:
a foldable mechanical fastening system comprising a web that is a laminate comprising a nonwoven and having opposing first and second surfaces and at least one engaging member joined to a first portion of the first surface of the web by a base, the engaging member including a plurality of engaging elements projecting out of the base, the engaging elements comprising a proximal end joined to the base and an opposing distal end spaced away from the proximal end, the distal end including at least one head and being joined to the proximal end by at least one stem; and
a frangible bonding agent that is a fugitive hot-melt adhesive disposed on and crystallizes on the head(s) of one or more of the engaging elements, the mechanical fastening system being folded such that the frangible bonding agent contacts a second portion of the first surface of the web thereby engaging the first portion with the second portion, the mechanical fastening system having an Aged Opening Force value of less than about 8N, according to the Opening Force Test.

18. The disposable diaper of claim 17 , wherein the laminate includes at least one of an elastic material and an activated portion.

Assignees

• Procter & Gamble

Inventors

• Rezai Ebrahim
• Tao Jay
• Lange Stephen Joseph
• Kline Mark James
• Landgrebe James David
• Raycheck Jeromy Thomas

Classifications

• A61F2013/51026

  being in thermoplastic material · CPC title

• A61L15/60

  Liquid-swellable gel-forming materials, e.g. super-absorbents · CPC title

• A61F2013/51147

  being polymeric films · CPC title

• A61F13/625

  characterised by the hook · CPC title

• A61F2013/49041

  having a specific location other than covered by groups A61F13/49011 - A61F13/49019 · CPC title