Polymeric netting with ribbons and strands, and methods of making the same

Patent metadata

Field	Value
Publication number	US-10603830-B2
Application number	US-201515536559-A
Country	US
Kind code	B2
Filing date	Dec 17, 2015
Priority date	Dec 24, 2014
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

Polymeric netting comprising polymeric ribbons and polymeric strands, each of the polymeric ribbons and polymeric strands having a length and a width, wherein the length is the longest dimension and the width is the shortest dimension, wherein a plurality of the polymeric strands are bonded together to form a netting layer, wherein adjacent polymeric strands in the netting layer are bonded intermittently at multiple locations along their respective lengths, wherein the netting layer has first and second opposing major surfaces, wherein the polymeric ribbons have a height-to-width aspect ratio of at least 2:1 and a minor surface defined by their width and length, and wherein the minor surface of a plurality of the polymeric ribbons is bonded to the first major surface of the netting layer. Polymeric netting described herein are useful, for example, in an absorbent article.

First claim

What is claimed is:

1. A polymeric netting comprising polymeric ribbons and polymeric strands, each of the polymeric ribbons and polymeric strands having a length, a width, and a thickness, wherein the length is the longest dimension and the width is the shortest dimension, wherein a plurality of the polymeric strands are bonded together to form a netting layer, wherein adjacent polymeric strands in the netting layer are bonded intermittently at multiple locations along their respective lengths to form strand bond regions along the thickness of the strands, wherein the netting layer has first and second opposing major surfaces defined by their width and length, wherein the polymeric ribbons have a thickness-to-width aspect ratio of at least 2:1 and a minor surface defined by their width and length, wherein the minor surface of a plurality of the polymeric ribbons is bonded to the first major surface of the netting layer to form ribbon bond regions that are substantially normal to the strand bond regions, and wherein with regard to the polymeric strands and polymeric ribbons, each polymeric ribbon is bonded to only one polymeric strand and each polymeric strand is bonded to only one polymeric ribbon.

2. The polymeric netting of claim 1 , wherein each polymeric ribbon is intermittently bonded to a strand.

3. The polymeric netting of claim 1 , wherein each polymeric ribbon is continuously bonded along the length of a strand.

4. The polymeric netting of claim 1 , wherein the height-to-width aspect ratio of the polymeric ribbons is at least 3:1.

5. The polymeric netting of claim 1 , wherein at least some of the polymeric ribbons have a width that is smaller than a width of at least some of the polymeric strands.

6. The polymeric netting of claim 1 , wherein at least some of the polymeric ribbons have a height that is greater than a height of at least some of the polymeric strands.

7. The polymeric netting of claim 1 , wherein the polymeric ribbons comprise a different polymeric composition than at least some of the polymeric strands.

8. The polymeric netting of claim 1 , wherein at least some of the polymeric ribbons have a different color than at least some of the polymeric strands.

9. The polymeric netting of claim 1 , wherein at least the polymeric ribbons are elastic or the polymeric strands are elastic.

10. The polymeric netting of claim 1 , wherein the minor surface of a second plurality of the polymeric ribbons is bonded to the second major surface of the netting layer.

11. An absorbent article comprising the polymeric netting of claim 1 , a liquid impermeable backsheet, and an absorbent core, wherein the absorbent core is between the polymeric netting and the backsheet, the polymeric netting is between the absorbent core and the backsheet, or the polymeric netting is within the absorbent core.

Assignees

• 3M Innovative Properties Co

Inventors

• Ausen Ronald W
• Etter Robert C
• Kopecky William J
• Legatt Michelle L
• Prioleau Lori-Ann S
• Wood Leigh E

Classifications

• B29C48/345

  Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising · CPC title

• B29C48/307 Primary

  specially adapted for bringing together components, e.g. melts within the die · CPC title

• B29C48/0021

  combined with joining, lining or laminating · CPC title

• B29L2031/4871

  Underwear · CPC title

• B29C48/3001

  characterised by the material or their manufacturing process · CPC title