IP Library › Granted Patent US 10,182,950
Granted Patent B2
US 10,182,950 · App. 12/182,386 · Granted Jan 22, 2019

Absorbent article having improved softness

Inventors: Kathleen Marie Lawson (West Chester, OH); Harald Hermann Hundorf (Bonn, DE); Holger Beruda (Schwalbach, DE); Horst Blessing (Cincinnati, OH); Peter Dziezok (Hochheim, DE); Axel Krause (Erfstadt, DE); Mattias Schmidt (Idstein, DE); Lutz Stelzig (Frankfurt am Main, DE)
Assignee: The Procter & Gamble Company
A61F13/5323A61F13/51401A61F13/51405
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Quick Facts
Patent No.
US 10,182,950
App. No.
12/182,386
Granted
Jan 22, 2019
Kind
B2
Abstract

Disposable absorbent article comprising a chassis comprising a topsheet, a backsheet, and an absorbent core wherein the article has improved softness.

Claims (32)

1. A disposable absorbent article comprising:

a chassis including a topsheet and a backsheet; and

an absorbent core comprising less than 10% by weight of cellulosic fibers, the absorbent core being located between the topsheet and the backsheet and including first and second absorbent layers, the first absorbent layer including a first substrate and the second absorbent layer including a second substrate, the first and second absorbent layers further including superabsorbent particulate polymer material deposited on the first and second substrates and thermoplastic adhesive material covering the absorbent particulate polymer material on the respective first and second substrates, the first and second absorbent layers combined together such that at least a portion of the thermoplastic adhesive material of the first layer contacts at least a portion of the thermoplastic adhesive material of the second absorbent layer, the absorbent particulate polymer material is disposed between the first and second substrates in an absorbent particulate polymer material area, and the absorbent particulate polymer material is substantially continuously distributed across the absorbent particulate polymer material area;

wherein the backsheet comprises a hydroenhanced nonwoven,

wherein the nonwoven comprises a surface coating, and wherein the surface coating is a surfactant.

2. The disposable absorbent article of claim 1 , wherein the article is a diaper.

3. The disposable absorbent article of claim 1 , wherein the nonwoven has a basis weight of at least about 22 gsm.

4. The disposable absorbent article of claim 1 , wherein the nonwoven has a basis weight of at least about 28 gsm.

5. The disposable absorbent article of claim 1 , wherein the nonwoven has a basis weight of at least about 30 gsm.

6. The disposable absorbent article of claim 1 , wherein the article has an in-bag compression measured as the ratio of an In-Bag stack height to Free stack height of less than about 50%.

7. The disposable absorbent article of claim 1 , wherein the article has an in-bag compression measured as the ratio of an In-Bag stack height to Free stack height of less than about 47%.

8. The disposable absorbent article of claim 1 , wherein the nonwoven has been treated by selfing.

9. The disposable absorbent article of claim 1 , wherein the nonwoven comprises fibers having different degrees of crimp or different types of crimp or both.

10. The disposable absorbent article of claim 1 , comprising a signal ingredient applied to the topsheet, the backsheet, or both.

11. The disposable absorbent article of claim 10 , wherein the signal ingredient has been applied as a lotion.

12. The disposable absorbent article of claim 1 , wherein the backsheet has a water vapor transmission rate of greater than 2000 g/24h/m 2 .

13. A disposable absorbent article comprising:

a chassis including a topsheet and a backsheet; and

an absorbent core comprising less than 10% by weight of cellulosic fibers, the absorbent core being located between the topsheet and the backsheet and including first and second absorbent layers, the first absorbent layer including a first substrate and the second absorbent layer including a second substrate, the first and second absorbent layers further including superabsorbent particulate polymer material deposited on the first and second substrates and thermoplastic adhesive material covering the absorbent particulate polymer material on the respective first and second substrates, the first and second absorbent layers combined together such that at least a portion of the thermoplastic adhesive material of the first layer contacts at least a portion of the thermoplastic adhesive material of the second absorbent layer, the absorbent particulate polymer material is disposed between the first and second substrates in an absorbent particulate polymer material area, and the absorbent particulate polymer material is substantially continuously distributed across the absorbent particulate polymer material area;

wherein the backsheet comprises a hydroenhanced nonwoven,

wherein the nonwoven comprises a surface coating, wherein the surface coating is a surfactant, and wherein the nonwoven is treated by a selfing mechanism.

14. The disposable absorbent article of claim 13 , wherein the topsheet comprises a nonwoven; wherein the nonwoven comprises a treatment selected from the group consisting of application of a fiber surface modifying agent, application of a surfactant, and treatment by a selfing mechanism.

15. A disposable absorbent article comprising:

a chassis including a topsheet and a backsheet; and

an absorbent located between the topsheet and the backsheet and including first and second absorbent layers, the first absorbent layer including a first substrate and the second absorbent layer including a second substrate, the first and second absorbent layers further including superabsorbent particulate polymer material deposited on the first and second substrates and thermoplastic adhesive material covering the absorbent particulate polymer material on the respective first and second substrates, the first and second absorbent layers combined together such that at least a portion of the thermoplastic adhesive material of the first layer contacts at least a portion of the thermoplastic adhesive material of the second absorbent layer, the absorbent particulate polymer material is disposed between the first and second substrates in an absorbent particulate polymer material area, and the absorbent particulate polymer material is substantially continuously distributed across the absorbent particulate polymer material area;

wherein the backsheet comprises a hydroenhanced nonwoven,

wherein the nonwoven comprises a surface coating, and wherein the surface coating is a surfactant.

16. The disposable absorbent article of claim 15 , wherein the article is a diaper.

17. The disposable absorbent article of claim 15 , wherein the nonwoven has a basis weight of at least about 22 gsm.

18. The disposable absorbent article of claim 15 , wherein the topsheet comprises a nonwoven; wherein the nonwoven comprises a treatment selected from the group consisting of application of a fiber surface modifying agent, application of a surfactant, and treatment by a selfing mechanism.

19. The disposable absorbent article of claim 15 , wherein the nonwoven has been treated by selfing.

20. The disposable absorbent article of claim 15 , wherein the nonwoven comprises fibers having different degrees of crimp or different types of crimp or both.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 9, 2008
From: LAWSON, KATHLEEN MARIE; HUNDORF, HARALD HERMANN; BERUDA, HOLGER; BLESSING, HORST; DZIEZOK, PETER; KRAUSE, AXEL; SCHMIDT, MATTIAS; STELZIG, LUTZ
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 021498/0528 →
Continuity (2)
Provisional Application 60986153 · Nov 7, 2007
Related Publication 20090118689A1 · May 7, 2009