Tampon pledget for increased bypass leakage protection

Patent metadata

Field	Value
Publication number	US-9259360-B2
Application number	US-95889710-A
Country	US
Kind code	B2
Filing date	Dec 2, 2010
Priority date	Nov 8, 2006
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

There is provided a tampon pledget that includes one or more enhanced features that result in the pledget exhibiting increased bypass leakage prevention. These enhanced features may include, but are not limited to, geometry, absorption, and any combinations thereof. There is also provided one or more methods for constructing a tampon pledget having increased bypass leakage protection.

First claim

What is claimed is:

1. A compressed tampon pledget comprising:
a bottom pad with a bottom area calculated in a single plane and a bottom fiber weight distribution;
a top pad with a top area calculated in a single plane and a top fiber weight distribution;
a pad lay-up ratio of said bottom area to said top area of 1:1.2;
a fiber distribution ratio of said bottom fiber weight distribution to said top fiber weight distribution of 0.75:1; and
an absorption potential that is higher at a bottom end of the compressed tampon pledget than at a top end.

2. The compressed tampon pledget according to claim 1 , wherein said bottom pad comprises a plurality of pads.

3. The compressed tampon pledget according to claim 1 , wherein said top pad comprises a plurality of pads.

4. The compressed tampon of claim 1 , wherein said wherein said compressed tampon has an average positive displacement greater than 0.145.

5. The tampon pledget according to claim 1 , wherein said compressed tampon pledget is generally cylindrical such that a main body region of said compressed tampon pledget has generally straight wall sides that lead into an adjacent insertion end such that said main body region transitions into at least one of a slight teardrop shape and a circular shape.

6. The tampon pledget according to claim 1 , wherein said compressed tampon pledget has a greater expansion potential near a bottom end of said compressed tampon pledget.

7. A compressed tampon pledget comprising:
a bottom pad with a bottom area calculated in a single plane and a bottom fiber weight distribution;
a top pad with a top area calculated in a single plane and a top fiber weight distribution;
a pad lay-up ratio of said bottom area to said top area of 1:2.25;
a fiber distribution ratio of said bottom fiber weight distribution to said top fiber weight distribution of 1.5:1; and
an absorption potential that is higher at a bottom end of the compressed tampon pledget than at a top end.

8. The compressed tampon pledget accroding to claim 7 , wherein said bottom pad comprises a plurality of pads.

9. The compressed tampon pledget according to claim 7 , wherein said top pad comprises a plurality of pads.

10. The compressed tampon of claim 7 , wherein said compressed tampon has an average positive displacement greater than 0.145.

11. The tampon pledget according to claim 7 , wherein said compressed tampon pledget is generally cylindrical such that a main body region of said compressed tampon pledget has generally straight wall sides that lead into an adjacent insertion end such that said main body region transitions into at least one of a slight teardrop shape and a circular shape.

12. The tampon pledget according to claim 7 , wherein said compressed tampon pledget has a greater expansion potential near a bottom end of said compressed tampon pledget.

13. A compressed tampon pledget, comprising:
a bottom pad with a bottom area calculated in a single plane and a bottom fiber weight distribution;
a top pad with a top area calculated in a single plane and a top fiber weight distribution;
a pad lay-up ratio of said bottom area to said top area of 1:1.6;
a fiber distribution ratio of said bottom fiber weight distribution to said top fiber weight distribution of 1:1; and
an absorption potential that is higher at a bottom end of the compressed tampon pledget than at a top end.

14. The compressed tampon pledget according to claim 13 , wherein said bottom pad comprises a plurality of pads.

15. The compressed tampon pledget according to claim 13 , wherein said top pad comprises a plurality of pads.

16. The compressed tampon of claim 13 , wherein said compressed tampon has an average positive displacement greater than 0.145.

17. A compressed tampon pledget comprising:
a bottom pad having a bottom area calculated in a single plane;
a top pad having a top area calculated in a single plane;
an average positive displacement rate greater than 0.145;
an absorption potential that is higher at a bottom end of the compressed tampon pledget than at a top end; and
a pad lay-up ratio of said bottom area to said top area of 1:1.25.

18. The compressed tampon pledget according to claim 17 , wherein said bottom pad comprises a plurality of pads.

19. The compressed tampon pledget according to claim 17 , wherein said bottom pad comprises a plurality of pads.

20. The compressed tampon pledget according to claim 17 , wherein said average positive displacement rate is greater than 0.2.

21. The compressed tampon pledget according to claim 17 , wherein said bottom pad has a bottom fiber weight distribution, wherein said top pad has a lop fiber weight distribution, and further comprising a fiber distribution ratio of said bottom fiber weight distribution to said lop fiber weight distribution of 1:1.

22. The compressed tampon of claim 17 , wherein said fiber distribution ratio of a bottom fiber weight distribution to a top fiber weight distribution is 0.75:1.

23. The compressed tampon of claim 17 , wherein said fiber distribution ratio of a bottom fiber weight distribution to a top fiber weight distribution is 1.5:1.

24. The compressed tampon of claim 17 , wherein said fiber distribution ratio of a bottom fiber weight distribution to a top fiber weight distribution is 1:1.

25. The tampon pledget according to claim 17 , further comprising a fiber weight distribution between about 0.5:1 to about 2:1.

26. The tampon pledget according to claim 17 , wherein said compressed tampon pledget is generally cylindrical such that a main body region of said compressed tampon pledget has generally straight wall sides that lead into an adjacent insertion end such that said main body region transitions into at least one of a slight teardrop shape and a circular shape.

27. The tampon pledget according to claim 17 , wherein said compressed tampon pledget has a greater expansion potential near a bottom end of said compressed tampon pledget.

28. A tampon pledget, comprising:
at least one bottom pad;
at least one top pad;
a fiber distribution ratio of said bottom fiber weight distribution to said top fiber weight distribution of between about 0.75:1 and about 1.5:1; and
an average positive displacement of greater than about 0.145; and
wherein prior to folding said at least one bottom pad and said at least one top pad to form a compressed tampon pledget, said at least one top pad and said at least one bottom pad are in a cross-pad configuration,
wherein said cross-pad configuration has an overlap portion that is formed where said at least one top pad and said at least one bottom pad overlap and a plurality of non-overlap portions are formed on opposite sides of said at least one top pad and said at least one bottom pad where said at least one top pad and said at least one bottom pad do not overlap one another such that said at least one bottom pad and said at least one top pad provide an arrangement of an absorbent material resulting in a fiber weight distribution that enables the pledget to expand to a slight teardrop shape upon liquid absorption,
wherein said compressed tampon pledget is generally cylindrical such that a main body region of said compressed tampon pledget has generally straight wall sides that lead into an adjacent insertion end, and
wherein said overlap portion enables said compressed tampon pledget to have greater absorpt

Assignees

• Jorgensen Robert
• Edgett Keith
• Edgewell Personal Care Brands Llc

Inventors

• Jorgensen Robert
• Edgett Keith

Classifications

• A61F2013/15447

  Fibre dimension, e.g. denier or tex · CPC title

• A61F13/2065 Primary

  Tampons folded from sheets of material (A61F13/206 takes precedence) · CPC title

• A61F13/2028

  adapted to change of shape after absorption of liquid · CPC title

• A61F13/15203 Primary

  Properties of the article, e.g. stiffness or absorbency (chemical aspects A61L15/00) · CPC title

• A61F13/2068 Primary

  Tampons made from several layers (A61F13/2065, A61F13/206 take precedence) · CPC title