Nonlinear, undulating perimeter embossing in an absorbent article

• US 7,686,790 B2
• Filed: 03/04/2003
• Issued: 03/30/2010
• Est. Priority Date: 03/04/2003
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Weiher, Marcus D., Walker, Laura J., Rasmussen, Shelley R., Zander, Teresa M.
• Primary Examiner(s): Zalukaeva; Tatyana
• Assistant Examiner(s): Chapman; Ginger T
• Application Number:
  US10/379,942
• Publication Number:
  US 20040176734A1
• Time in Patent Office: 2,583 Days
• Field of Search: 604/317, 604/358, 604/383, 604/385.01, 604/385.101, 604/385.23, 604/380, 604/379, 604/365, 604/367, 604/378, 604/382, 604/384, 604/385.03, 604/385.04, 128/121.1, 428/103, D24124-126, D5/20, D5/25, D5/35
• US Class Current: 604/317
• CPC Class Codes: A61F 13/4756 the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
• CPC Class Codes: A61F 13/533 having discontinuous areas of compression

Abstract

An absorbent feminine care article (20) having a longitudinal direction (22), a lateral direction (24), first and second longitudinally opposed end portions (72, 72a), and an intermediate portion (76) located between the end portions. The article (20) comprises an absorbent body structure (30) sandwiched between a cover (26) and a baffle (28). In a particular aspect, the absorbent structure (30) can include one or more distinctively configured embossment regions (34), and the embossment regions can be distributed along the intermediate portion (76) of the article.

Claims

1. An absorbent article having a longitudinal direction, a lateral direction, first and second longitudinally opposed end portions, and an intermediate portion located between the end portions, said article comprising

a liquid-permeable cover;

a baffle;

an absorbent body sandwiched between said cover and baffle, the absorbent body having perimeter side-edges, perimeter end-edges, an intake layer and a shaping layer; and

a nonlinear embossment region formed in at least a portion of said cover and said absorbent body, said embossment region extending longitudinally along said intermediate portion of the article;

wherein

the embossment region has a pattern-shape with back-and-forth cycles which traverse back-and-forth along the lateral direction;

the embossment region is continuous along each back-and-forth cycle of the pattern-shape; and

the back-and-forth cycles of the embossment region are located proximate to and entirely inboard from the perimeter side-edges and end-edges of the absorbent body, the back-and-forth cycles of the embossment region thereby arranged to not intersect the perimeter edges of the absorbent body;

and wherein said embossment region extends continuously along at least about 1.5 back-and-forth cycles of the pattern-shape along at least said intermediate portion of the article.

2. An article as recited in claim 1, wherein said intermediate portion is a middle 34% of an overall, longitudinal length of the article.

3. An article as recited in claim 1, wherein said embossment region extends longitudinally at least 4 cm across said intermediate portion of the article.

4. An article as recited in claim 1, wherein said embossment region includes

a pair of transversely spaced-apart, laterally opposed side-portions which extend generally along the longitudinal-direction at positions that are generally adjacent laterally opposed side-edges of the absorbent body, and

a longitudinally opposed pair of end-portions which extend laterally along the cross-direction at positions that are generally adjacent a pair of longitudinally opposed end edges of the absorbent body.

5. An article as recited in claim 4, wherein said embossment region is located proximate a perimeter of the absorbent body, and extends along substantially an entirety of the perimeter of the absorbent body.

6. An article as recited in claim 1, wherein said embossment region has a traversing distance of at least about 0.1 cm, at least along said intermediate portion of the article.

7. An article as recited in claim 1, wherein said embossment region has a traversing distance of not more than about 2.3 cm, at least along said intermediate portion of the article.

8. An article as recited in claim 1, wherein said pattern-shape of said embossment region extends continuously with a traversing frequency of at least about 2 back-and-forth cycles per 5 cm of article length, at least along said intermediate portion of the article.

9. An article as recited in claim 1, wherein said embossment region has an overall, embossment region width of at least about 0.05 cm and not more than about 0.7 cm, as measured between an outboard edge of the embossment region and a corresponding, inboard edge of the embossment region.

10. An article as recited in claim 1, wherein said embossment region includes

a first, longitudinally-extending, nonlinear embossment-element which is continuous along each back-and-forth cycle of the pattern-shape;

and

at least a second, longitudinally-extending, nonlinear embossment-element, which is continuous along each back-and-forth cycle of the pattern-shape and located proximately adjacent to said first embossment-element.

11. An article as recited in claim 10, wherein said embossment region includes a separation distance between the first and second embossment-elements which is at least about 0.05 cm and not more than about 0.8 cm.

12. An article as recited in claim 10, wherein said first embossment-element has a first embossment-element width, which is at least about 0.05 cm and not more than about 0.7 cm.

13. An article as recited in claim 12, wherein said second embossment-element has a second embossment-element width, which is at least about 0.05 cm and not more than about 0.7 cm.

14. An article as recited in claim 1, wherein said embossment region has an embossment caliper which is not more than about 37% of a central caliper of the article.

15. An article as recited in claim 1, wherein said embossment region is also formed into said cover and shaping layer along at least a portion of each end portion of the article.