Hip-to-waist and waist-to-crotch silhouette(s) of absorbent article(s) comprising beamed elastics

Patent metadata

Field	Value
Publication number	US-12109094-B2
Application number	US-202117219975-A
Country	US
Kind code	B2
Filing date	Apr 1, 2021
Priority date	Dec 20, 2016
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

The present disclosure relates to absorbent articles comprising belts comprising one or more pluralities of tightly spaced (less than 4 mm, less than 3 mm, less than 2 mm, and less than 1 mm) and/or low decitex (less than 300, less than 200, less than 100 dtex) and/or low strain (less than 300%, less than 200%, less than 100%) elastics to deliver low pressure less than 1 psi (according to the conditions defined by the Pressure-Under-Strand Test in the Method below) under the elastics, while providing adequate modulus of (between about 2 gf/mm and 15 gf/mm), resulting in a Product Hip-to-Waist Silhouette from about 0.8 to about 1.1 and a Product Waist-to-Crotch Silhouette from about 0.8 to about 2.0 to provide for the advantages described above.

First claim

What is claimed is:

1. An absorbent article, comprising:
a front waist region, a back waist region, and a crotch region therebetween;
a chassis comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet, wherein the chassis comprises a front end edge, a back end edge, and a pair of laterally opposing side edges;
a back belt disposed in the back waist region overlapping and extending outboard of the back end edge of the chassis to form a back waist edge;
a front belt disposed in the front waist region overlapping and extending outboard of the front end edge of the chassis to form a front waist edge;
wherein the front belt is joined to the back belt at or adjacent the laterally opposing belt side edges to form leg openings and a waist opening to form a closed-form pant;
a longitudinal axis extending from the midpoint of the front waist edge to the midpoint of the back waist edge;
a lateral axis extending perpendicular to the longitudinal axis through the midpoint of the longitudinal axis;
wherein the back belt comprises a first plurality of elastics comprising greater than about 40 elastic strands, and wherein the front belt comprises a second plurality of elastics comprising greater than about 40 elastic strands;
wherein the Pressure-Under-Strand of the first plurality of elastics is from about 0.1 to about 1 psi, and wherein the Pressure-Under-Strand of the second plurality of elastics is from about 0.1 to about 1 psi;
wherein the Product Hip-to-Waist Silhouette is from about 0.8 to about 1.1;
wherein the Product Waist-to-Crotch Silhouette is from about 0.8 to about 2.0; and
wherein the absorbent article has a Relaxed Product Waist Width from about 80 mm to about 270 mm and a Relaxed Product Hip Width from about 80 mm to about 300 mm.

2. The absorbent article of claim 1 , wherein the absorbent article has a Relaxed Product Waist Width from about 170 mm to about 270 mm and a Relaxed Product Hip Width from about 170 to about 300 mm.

3. The absorbent article of claim 1 , wherein the absorbent article has a Relaxed Product Waist Width from about 80 mm to about 180 mm and a Relaxed Product Hip Width from about 80 mm to about 200 mm.

4. The absorbent article of claim 1 , wherein the first plurality of elastics comprises greater than about 70 elastic strands, and wherein the second plurality of elastics comprises greater than about 50 elastic strands.

5. The absorbent article of claim 1 , wherein the front belt is refastenably joined to the back belt.

6. The absorbent article of claim 1 , wherein the Average-Dtex of the first plurality of elastics is from about 10 to about 500, and wherein the Average-Dtex of the second plurality of elastics is from about 10 to about 500.

7. The absorbent article of claim 1 , wherein the back belt is divided into 4 equal sections arranged longitudinally, wherein Section 4 comprises a proximal end edge of the back belt, Section 1 comprises a distal end edge of the back belt and forms the back waist edge, Section 2 is proximate to Section 1 and Section 3 is proximate to Section 4, wherein at least two of the sections each have greater than 10 elastic strands; and
wherein the front belt is divided into 4 equal sections arranged longitudinally, wherein Section 4 comprises a proximal end edge of the front belt, Section 1 comprises a distal end edge of the front belt and forms the front waist edge, Section 2 is proximate to Section 1 and Section 3 is proximate to Section 4, wherein at least two of the sections each have greater than 10 elastic strands.

8. The absorbent article of claim 7 , wherein Section 1 of the back belt is longitudinally longer than Section 1 of the front belt.

9. The absorbent article of claim 1 , wherein the first plurality of elastics of the back belt are between an inner and an outer nonwoven, and wherein the second plurality of elastics of the front belt are between an inner and an outer nonwoven, and wherein the inner nonwoven of the front belt and the inner nonwoven of the back belt are separate and distinct and longitudinally spaced from each other, and wherein the outer nonwoven of the front belt and the outer nonwoven of the back belt are separate and distinct and longitudinally spaced from each other.

10. An absorbent article, comprising:
a front waist region, a back waist region, and a crotch region therebetween;
a chassis comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet, wherein the chassis comprises a front end edge, a back end edge, and a pair of laterally opposing side edges;
a back belt disposed in the back waist region overlapping and extending outboard of the back end edge of the chassis to form a back waist edge;
a front belt disposed in the front waist region overlapping and extending outboard of the front end edge of the chassis to form a front waist edge;
wherein the front belt is joined to the back belt at or adjacent the laterally opposing belt side edges to form leg openings and a waist opening to form a closed-form pant;
a longitudinal axis extending from the midpoint of the front waist edge to the midpoint of the back waist edge;
a lateral axis extending perpendicular to the longitudinal axis through the midpoint of the longitudinal axis;
wherein the back belt comprises a first plurality of elastics comprising greater than about 60 elastic strands, and wherein the front belt comprises a second plurality of elastics comprising greater than about 60 elastic strands;
wherein the Pressure-Under-Strand of the first plurality of elastics is from about 0.1 to about 1 psi, and wherein the Pressure-Under-Strand of the second plurality of elastics is from about 0.1 to about 1 psi;
wherein the Product Length-to-Waist Silhouette is from about 0.8 to about 1.08;
wherein the Product-Waist-to-Crotch Silhouette is from about 0.8 to about 2.8; and
wherein the absorbent article has a Relaxed Product Waist Width from about 200 mm to about 400 mm and a Relaxed Product Hip Width from about 200 mm to about 450 mm.

11. The absorbent article of claim 10 , wherein the absorbent article has a Relaxed Product Waist Width from about 300 mm to about 400 mm and a Relaxed Product Hip Width from about 300 mm to about 450 mm.

12. The absorbent article of claim 10 , wherein the absorbent article has a Relaxed Product Waist Width from about 200 mm to about 300 mm and a Relaxed Product Hip Width from about 200 mm to about 350 mm.

13. The absorbent article of claim 10 , wherein the first plurality of elastics comprises greater than about 80 elastic strands, and wherein the second plurality of elastics comprises greater than about 80 elastic strands.

14. The absorbent article of claim 10 , wherein the front belt is refastenably joined to the back belt.

15. The absorbent article of claim 10 , wherein the Average-Dtex of the first plurality of elastics is from about 10 to about 500, and wherein the Average-Dtex of the second plurality of elastics is from about 10 to about 500.

16. The absorbent article of claim 10 , wherein the back belt is divided into 4 equal sections arranged longitudinally, wherein Section 4 comprises a proximal end edge of the back belt, Section 1 comprises a distal end edge of the back belt and forms the back waist edge, Section 2 is proximate to Section 1 and Section 3 is proximate to Section 4, wherein at least two of the sections each have greater than 20 elastic strands; and
wherein the front belt is divided into 4 equal sections arranged longitudinally, wherein Section 4 comprises a proximal end edge of the front bel

Assignees

• Procter & Gamble

Inventors

• Lavon Gary Dean
• Seitz Bret Darren
• Schneider Uwe
• Wade Sarah Marie
• Eckstein Joseph Allen

Classifications

• A61F2013/51322

  being elastomeric or stretchable · CPC title

• A61F13/49061

  the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region · CPC title

• B32B37/22

  involving the assembly of both discrete and continuous layers · CPC title

• A61F13/5622

  specially adapted for diapers or the like · CPC title

• D04H3/12

  with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form · CPC title