Bonding pattern for disposable absorbent articles

Patent metadata

Field	Value
Publication number	US-9675500-B2
Application number	US-201213426049-A
Country	US
Kind code	B2
Filing date	Mar 21, 2012
Priority date	Oct 1, 2010
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

An article includes a first web and second web underlying the first web. Each of the first and second webs includes first and second end regions and first and second side regions. The first web includes a precursor web having a pattern of discrete substantially columnar protruded extensions extending only from a first surface of the precursor web, each of the protruded extensions having a sidewall defining an open proximal portion and a closed distal portion. The article further includes a bonding pattern adhering together at least one of the first end regions of the first and second webs and the second end regions of the first and second webs. The bonding pattern includes a plurality of discrete bonding points and a sized spacing between each adjacent bonding point sufficient to have inscribed therein a circle having a diameter of about 1 mm to about 12 mm.

First claim

What is claimed is:

1. An article comprising:
front end and a back end;
a first web comprising a precursor web having a pattern of discrete substantially columnar protruded extensions extending only from a first surface of the precursor web, each of the protruded extensions having a sidewall defining an open proximal portion and a closed distal portion, wherein the first web comprises macroapertures having a diameter in the range of 600 microns to 1000 microns,
a second web comprising synthetic fibers and cellulose underlying the first web, wherein each of the first and second webs comprises first and second end regions and first and second side regions; and
a first bonding pattern adhering together the second end regions of the first and second webs corresponding to the back end of the article, the first bonding pattern comprising a plurality of discrete bonding points and a sized spacing between each adjacent bonding point such that a circle having a diameter greater than 3 mm may be inscribed without contacting two or more bonding points and a circle having a diameter greater than 12 mm may not be inscribed without contacting two or more bonding points, wherein the first bonding pattern exists solely in the back end of the article.

2. The article of claim 1 , wherein the first end regions of the first and second webs is about 10% to about 30% of a total area of the article.

3. The article of claim 1 , wherein the second end regions of the first and second webs is about 10% to about 30% of the total area of the article.

4. The article of claim 1 , wherein the bonding points comprise an adhesive.

5. The article of claim 1 , wherein the bonding points have a shape selected from the group consisting of a circle, an ellipse, a rectangle, a triangle, and combinations thereof.

6. The article of claim 1 , wherein the bonding points have a diameter in a range of about 1 mm to about 2 mm.

7. The article of claim 1 , wherein the second web is an absorbent structure.

8. The article of claim 1 , wherein the bonding pattern covers about 10% to about 20% of the total surface area of the first or second end regions of the first and second webs.

9. The article of claim 1 , further comprising a second bonding pattern adhering together at least one of the first side regions of the first and second webs and the second side regions of the first and second webs, the second bonding pattern comprising a plurality of discrete second bonding points and a center-to-center spacing between each adjacent second bonding point of about 1 mm to about 3 mm.

10. The article of claim 9 , wherein the plurality of second bonding points are arranged in a series of longitudinal lines.

11. The article of claim 10 , wherein the spacing between adjacent longitudinal lines is about 1 mm to about 5 mm.

12. The article of claim 9 , wherein the second bonding points have a shape selected from the group consisting of a circle, an ellipse, a rectangle, a triangle, and combinations thereof.

13. The article of claim 9 , wherein the second bonding points have a diameter of about 1 mm to about 2 mm.

14. The article of claim 9 , wherein the second bonding pattern adheres together only one of the first side regions of the first and second webs or the second side regions of the first and second webs.

15. The article of claim 9 , wherein the second bonding pattern adheres together both the first side regions of the first and second webs and the second side regions of the first and second webs, a first portion of the second bonding pattern adheres together the first side regions of the first and second webs, a second portion of the second bonding pattern adheres together the second side regions of the first and second webs.

16. The article of claim 9 , wherein the bonding pattern covers about 10% to about 20% of the total surface area of the first or second side regions of the first and second webs.

Assignees

• Rawat Digvijay
• Glassmeyer Ronda Lynn
• Stone Keith Joseph
• Cecchetto Pietro
• Procter & Gamble

Inventors

• Rawat Digvijay
• Glassmeyer Ronda Lynn
• Stone Keith Joseph
• Cecchetto Pietro

Classifications

• Y10T428/24826

  Spot bonds connect components · CPC title

• Y10T428/24331

  including nonapertured component · CPC title

• Y10T428/24851

  Intermediate layer is discontinuous or differential · CPC title

• A61F13/5116

  being formed of multiple layers (A61F13/5123 takes precedence) · CPC title

• A61F13/51104 Primary

  the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections · CPC title