Absorbent article with waistband having contraction

Patent metadata

Field	Value
Publication number	US-9358161-B2
Application number	US-201213490543-A
Country	US
Kind code	B2
Filing date	Jun 7, 2012
Priority date	Jun 21, 2011
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A disposable absorbent article comprising a first waist region, a second waist region, a crotch region disposed between the first waist region and second waist region; a first waist edge and a second waist edge; the disposable absorbent article comprising a first waistband near the first waist edge and a second waistband near the second waist edge, wherein the Front-to-Back Delta Chassis Contraction is greater than about 9.0%.

First claim

What is claimed is:

1. A disposable absorbent article comprising: a first waist region, a second waist region, a crotch region disposed between the first waist region and second waist region; a first waist edge and a second waist edge; the disposable absorbent article comprising a first waistband near the first waist edge and a second waistband near the second waist edge, wherein the first waistband has a Relaxed Front Chassis Width and an Extended Front Chassis Width; wherein the second waistband has a Relaxed Back Chassis Width and an Extended Back Chassis Width; wherein the first waistband has a % Front Chassis Contraction, wherein % Front Chassis Contraction=((Extended Front Chassis Width−Relaxed Front Chassis Width)/Extended Front Chassis Width)×100; wherein the second waistband has a % Back Chassis Contraction, wherein % Back Chassis Contraction=((Extended Back Chassis Width−Relaxed Back Chassis Width)/Extended Back Chassis Width)×100; wherein the disposable absorbent article has a Front-to-Back Delta Chassis Contraction of greater than 9.0% and less than 27.7%, wherein the Front-to-Back Delta Chassis Contraction=absolute value of (% Back Chassis Contraction−% Front Chassis Contraction); wherein the second waistband has an Extended Waist Feature Length and a Chassis Extended Length, wherein the second waistband has a ratio of Extended Waist Feature Length to Chassis Extended Length of greater than 1.16 and less than 2.07; and wherein the disposable absorbent article is a taped diaper.

2. The disposable absorbent article of claim 1 , wherein both the first waistband and the second waistband are comprised of a waistband laminate.

3. The disposable absorbent article of claim 2 , wherein the waistband laminate is comprised of a nonwoven material and at least two elastic strands, wherein each of the at least two elastic strands are different elastic materials.

4. The disposable absorbent article of claim 2 , wherein the waistband laminate is comprised of a nonwoven material and at least one elastic strand, wherein where the waistband laminate is cut results in Chassis Contraction, measured as defined herein, only on one side of the waistband laminate.

5. The disposable absorbent article of claim 2 , wherein the waistband laminate is comprised of a nonwoven material and at least eight elastic strands, wherein four of the elastic strands have a first installed elongation and the other four of the elastic strands have a second installed elongation.

6. The disposable absorbent article of claim 5 , wherein the waistband laminate is cut between the at least eight elastic strands to generate the first waistband and the second waistband, wherein the first waistband is comprised of the nonwoven material and four elastic strands and the second waistband is comprised of the nonwoven material and four elastic strands.

7. The disposable absorbent article of claim 2 , wherein the waistband laminate is comprised of a nonwoven material and at least two elastic strands, wherein each of the at least two elastic strands have different installed elongations.

8. The disposable absorbent article of claim 7 , wherein the waistband laminate is cut between the at least two elastic strands to generate the first waistband and the second waistband, wherein the first waistband is comprised of the nonwoven material and at least one elastic strand and the second waistband is comprised of the nonwoven material and at least one elastic strand.

9. The disposable absorbent article of claim 8 , wherein both the first waistband and the second waistband are applied to the disposable absorbent article and the first waistband has a first installed elongation and the second waistband has a second installed elongation.

10. The disposable absorbent article of claim 9 , wherein the first installed elongation is about 100% and the second installed elongation is about 150%.

11. The disposable absorbent article of claim 9 , wherein the first installed elongation is about 140% and the second installed elongation is about 160%.

12. The disposable absorbent article of claim 9 , wherein the delta between the first installed elongation and the second installed elongation is greater than 20% and less than or equal to 100%.

13. The disposable absorbent article of claim 1 , wherein the Front-to-Back Delta Chassis Contraction, measured as defined herein, is greater than 9.5% and less than 27.7%.

14. The disposable absorbent article of claim 1 , wherein the Front-to-Back Delta Chassis Contraction, measured as defined herein, is greater than 15% and less than 27.7%.

15. The disposable absorbent article of claim 1 , wherein the first waistband and the second waistband are applied to the disposable absorbent article at an applied waistband strain of from about 70% to about 75%.

16. The disposable absorbent article of claim 1 , wherein both the first waistband and the second waistband are comprised of a waistband laminate, wherein the waistband laminate is cut such that the two resulting waistbands have an unequal distribution of elastic strands.

17. A disposable absorbent article comprising: a first waist region, a second waist region, a crotch region disposed between the first waist region and second waist region; a first waist edge and a second waist edge; the disposable absorbent article comprising a first waistband near the first waist edge and a second waistband near the second waist edge, wherein the first waistband has a Relaxed Front Chassis Width and an Extended Front Chassis Width; wherein the second waistband has a Relaxed Back Chassis Width and an Extended Back Chassis Width; wherein the first waistband has a % Front Chassis Contraction, wherein % Front Chassis Contraction=((Extended Front Chassis Width−Relaxed Front Chassis Width)/Extended Front Chassis Width)×100; wherein the second waistband has a % Back Chassis Contraction, wherein % Back Chassis Contraction=((Extended Back Chassis Width−Relaxed Back Chassis Width)/Extended Back Chassis Width)×100; wherein the absorbent article has a Front-to-Back Delta Chassis Contraction of less than 9.0% and either a % Front Chassis Contraction, or a % Back Chassis Contraction, greater than 18%; wherein the Front-to-Back Delta Chassis Contraction=absolute value of (% Back Chassis Contraction−% Front Chassis Contraction); wherein the second waistband has an Extended Waist Feature Length and a Chassis Extended Length, wherein the waistband has a ratio of Extended Waist Feature Length to Chassis Extended Length of greater than 1.16 and less than 2.07; and wherein the disposable absorbent article is a taped diaper.

Assignees

• Lawson Kathleen Marie
• Raycheck Jeromy Thomas
• Maciag Kathleen Ann Murphy
• Hamilton Raymond Scott
• Procter & Gamble

Inventors

• Lawson Kathleen Marie
• Raycheck Jeromy Thomas
• Maciag Kathleen Ann Murphy
• Hamilton Raymond Scott

Classifications

• A61F2013/15146

  for urine collection · CPC title

• A61F13/49466

  the edge leakage prevention means being at the waist region · CPC title

• A61F13/49011 Primary

  the elastic means is located at the waist region · CPC title

• A61F13/49413

  the edge leakage prevention means being an upstanding barrier · CPC title

• A61F2013/49025

  having multiple elastic strands · CPC title