IP Library Granted Patent US 10,500,108
Granted Patent B1
US 10,500,108 · App. 16/285,611 · Granted Dec 10, 2019

Fluid distribution material for absorbent articles

Inventors: Andrew D. Maschino (Paris, IL); Michael Estel Fisher (Rosedale, IN); Brian C. Loomis (Terre Haute, IN)
Assignee: TREDEGAR FILM PRODUCTS CORPORATION
A61F13/537A61F13/15203A61F13/513A61F13/5376A61F13/53708A61F13/53713A61F13/53747B32B3/266B32B3/28B32B3/30B32B5/022B32B5/142B32B27/12A61F13/15699A61F13/512A61F13/515A61F13/5116A61F13/51104A61F2013/15292A61F2013/15406A61F2013/51165A61F2013/51195A61F2013/51355A61F2013/51366A61F2013/51372A61F2013/53721A61F2013/53778A61F2013/53782A61F2013/53795A61F2013/530868A61F2013/530875A61F2013/530897A61F2013/530905B32B5/26B32B27/18B32B27/32B32B2307/50B32B2307/718B32B2307/726B32B2307/728B32B2323/043B32B2555/02Y10T428/24289Y10T428/24331Y10T428/24636Y10T428/266Y10T442/674Y10T442/678
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Quick Facts
Patent No.
US 10,500,108
App. No.
16/285,611
Granted
Dec 10, 2019
Kind
B1
Abstract

A fluid distribution material for use in an absorbent article includes a formed film layer, with a basis weight of between about 10 gsm and about 25 gsm, a user-facing side, and a garment-facing side. The formed film layer includes a plurality of apertured protuberances, numbering 10 to 40 per linear inch. The garment-facing side has a plurality of apertures aligned with the plurality of apertured protuberances, with land areas therebetween. A nonwoven layer, with a basis weight of between about 10 gsm and about 15 gsm, is laminated to the garment-facing side of the formed film layer. The nonwoven layer includes a plurality of fibers adjacent the land areas. Fibers adjacent the land areas are gathered a higher density than fibers located adjacent the plurality of apertures. The fluid distribution material has a compressibility of less than 10% between pressures of 0.21 psi and 0.60 psi.

Claims (37)

1. A fluid distribution material for use in an absorbent article, the fluid distribution material comprising:

a formed film layer having a user-facing side and a garment-facing side opposite the user-facing side, the formed film layer comprising a plurality of apertured protuberances arranged in a pattern having 10 to 40 protuberances per linear inch, each of the protuberances comprising a continuous sidewall extending from the user-facing side, the garment-facing side having a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures, the formed film layer having a basis weight of between about 10 gsm and about 25 gsm; and

a nonwoven layer laminated to the garment-facing side of the formed film layer, the nonwoven layer comprising a plurality of fibers adjacent the land areas and the plurality of apertures of the formed film layer, the nonwoven layer having a basis weight of between about 10 gsm and about 15 gsm,

wherein the plurality of fibers adjacent the land areas are gathered at a higher density than fibers located adjacent the plurality of apertures, and

wherein the fluid distribution material has a compressibility of less than 10% between pressures of 0.21 psi and 0.60 psi.

2. The fluid distribution material according to claim 1 , wherein the plurality of apertured protuberances are arranged in a pattern having 10 to 25 protuberances per inch.

3. The fluid distribution material according to claim 1 , wherein the formed film layer comprises high density polyethylene (HDPE).

4. The fluid distribution material according to claim 1 , wherein the formed film layer comprises a surfactant.

5. The fluid distribution material according to claim 1 , wherein the nonwoven layer comprises a spunbond nonwoven.

6. The fluid distribution material according to claim 5 , wherein the spunbond nonwoven is hydrophilic.

7. The fluid distribution material according to claim 5 , wherein the plurality of fibers comprises polypropylene.

8. A fluid management system for use in an absorbent article, the fluid management system comprising:

a fluid distribution material comprising

a formed film layer having a user-facing side and a garment-facing side opposite the user-facing side, the formed film layer comprising a plurality of apertured protuberances arranged in a pattern having 10 to 40 protuberances per linear inch, each of the protuberances comprising a continuous sidewall extending from the user-facing side, the garment-facing side having a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures, the formed film layer having a basis weight of between about 10 gsm and about 25 gsm, and

a nonwoven layer laminated to the garment-facing side of the formed film layer, the nonwoven layer comprising a plurality of fibers adjacent the land areas and the plurality of apertures of the formed film layer, the nonwoven layer having a basis weight of between about 10 gsm and about 15 gsm,

wherein the plurality of fibers adjacent the land areas are gathered at a higher density than fibers located adjacent the plurality of apertures, and

wherein the fluid distribution material has a compressibility of less than 10% between pressures of 0.21 psi and 0.60 psi; and

a topsheet attached to the fluid distribution material, wherein the user-facing side of the formed film layer faces the topsheet.

9. The fluid management system according to claim 8 , wherein the plurality of apertured protuberances are arranged in a pattern having 10 to 25 protuberances per inch.

10. The fluid management system according to claim 8 , wherein the formed film layer comprises high density polyethylene (HDPE).

11. The fluid management system according to claim 8 , wherein the topsheet comprises an apertured formed film.

12. The fluid management system according to claim 8 , wherein the topsheet comprises a nonwoven web.

13. The fluid management system according to claim 8 , wherein the topsheet comprises a laminate.

14. An absorbent article comprising:

a fluid distribution material, the fluid distribution material comprising

a formed film layer having a user-facing side and a garment-facing side opposite the user-facing side, the formed film layer comprising a plurality of apertured protuberances arranged in a pattern having 10 to 40 protuberances per linear inch, each of the protuberances comprising a continuous sidewall extending from the user-facing side, the garment-facing side having a plurality of apertures aligned with the plurality of apertured protuberances and land areas in between the apertures, the formed film layer having a basis weight of between about 10 gsm and about 25 gsm, and

a nonwoven layer laminated to the garment-facing side of the formed film layer, the nonwoven layer comprising a plurality of fibers adjacent the land areas and the plurality of apertures of the formed film layer, the nonwoven layer having a basis weight of between about 10 gsm and about 15 gsm,

wherein the plurality of fibers adjacent the land areas are gathered at a higher density than fibers located adjacent the plurality of apertures, and

wherein the fluid distribution material has a compressibility of less than 10% between pressures of 0.21 psi and 0.60 psi;

a backsheet; and

an absorbent material in between the fluid distribution material and the backsheet.

15. The absorbent article according to claim 14 , wherein the plurality of apertured protuberances are arranged in a pattern having 10 to 25 protuberances per inch.

16. The absorbent article according to claim 14 , wherein the formed film layer comprises high density polyethylene (HDPE).

17. The absorbent article according to claim 14 , further comprising a topsheet.

18. The absorbent article according to claim 17 , wherein the topsheet comprises an apertured formed film.

19. The absorbent article according to claim 17 , wherein the topsheet comprises a nonwoven web.

20. The absorbent article according to claim 17 , wherein the topsheet comprises a laminate.

Assignments (3)
CHANGE OF NAME Recorded Jan 14, 2021
From: TREDEGAR FILM PRODUCTS LLC
To: FITESA FILM PRODUCTS LLC
Reel/Frame 054984/0795 →
CHANGE OF NAME Recorded Apr 29, 2020
From: TREDEGAR FILM PRODUCTS CORPORATION
To: TREDEGAR FILM PRODUCTS LLC
Reel/Frame 052521/0105 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2019
From: MASCHINO, ANDREW D.; FISHER, MICHAEL ESTEL; LOOMIS, BRIAN C.
To: TREDEGAR FILM PRODUCTS CORPORATION
Reel/Frame 048547/0708 →
Continuity (1)
Continuation 15989852 · May 25, 2018
Cited By (49)
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