IP Library Granted Patent US 8,716,547
Granted Patent B2
US 8,716,547 · App. 11/128,579 · Granted May 6, 2014

Stretch laminates

Inventors: Anand Rudra Venkitaraman (Cincinnati, OH); George Stephen Reising (Batavia, OH)
Assignee: The Procter & Gamble Company
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Quick Facts
Patent No.
US 8,716,547
App. No.
11/128,579
Granted
May 6, 2014
Kind
B2
Abstract

A stretch laminate having a first substrate is adhesively attached to an elastic film. The adhesive is applied in a continuous manner to the substrate in a first tack down region which is disposed proximate to an end of the stretch laminate. The adhesive is applied as a plurality of adhesive stripes in an activation region which is interior of the first tack down region. The adhesive stripes have a width and a distance between adjacent adhesive stripes. The ratio of stripe width to distance between the adhesive stripes is in the range of less than about 1 or greater than about 0.33.

Claims (27)

1. A disposable absorbent article for wearing about the lower torso of a wearer, the disposable absorbent article having a first waist region, a second waist region, and a crotch region disposed between the first waist region and the second waist region, the disposable absorbent article further comprising:

a chassis comprising:

a topsheet;

a backsheet attached to at least a portion of the topsheet; and

an absorbent core disposed between at least a portion of the topsheet and the backsheet; and

at least one elastically extensible ear panel having an inner edge and an outer edge, wherein the inner edge is attached to the first waist region or the second waist region, and wherein the at least one elastically extensible ear panel further comprises:

an elastic film;

a first substrate attached to the elastic film via an adhesive disposed between the first substrate and the elastic film;

a second substrate attached to the elastic film via an adhesive disposed between the second substrate and the elastic film;

a first tack down region disposed along the inner edge;

a second tack down region disposed along the outer edge; and

an activation region disposed between the first tack down region and the second tack down region;

wherein the adhesive in a portion of the activation region includes a plurality of stripes having a distance between adjacent stripes and each stripe having a stripe width, wherein a ratio of the stripe width to the distance between adjacent stripes is about 0.75;

and wherein the adhesive in another portion of the activation region includes a plurality of stripes having a distance between adjacent stripes and each stripe having a stripe width, wherein a ratio of the stripe width to the distance between adjacent stripes is about 0.5.

2. A disposable absorbent article for wearing about the lower torso of a wearer, the disposable absorbent article having a first waist region, a second waist region, and a crotch region disposed between the first waist region and the second waist region, the disposable absorbent article further comprising:

a chassis comprising:

a topsheet;

a backsheet attached to at least a portion of the topsheet; and

an absorbent core disposed between at least a portion of the topsheet and the backsheet; and

at least one elastically extensible ear panel having an inner edge and an outer edge, the inner edge being attached to the first waist region or the second waist region, the elastically extensible ear panel further comprising:

an elastic film;

a first substrate attached to the elastic film via an adhesive disposed between the first substrate and the elastic film;

a second substrate attached to the elastic film via an adhesive disposed between the second substrate and the elastic film;

a first tack down region disposed along the inner edge;

a second tack down region disposed along the outer edge; and

an intermediate region disposed between the first tack down region and the second tack down region;

wherein the adhesive in a portion of the intermediate region includes a plurality of stripes having a width of less than 1 mm, the distance between adjacent stripes being 1.5 mm; and wherein the adhesive in another portion of the intermediate region includes a plurality of stripes having a width of less than 1 mm, the distance between adjacent stripes being 2 mm; and wherein the Peel Force value of the first substrate and the elastic film is between about 119 g/cm and about 271 g/cm and the Peel Force value of the second substrate and the elastic film is between about 63 g/cm and about 128 g/cm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 13, 2005
From: VENKITARAMAN, ANAND RUDRA; REISING, GEORGE STEPHEN
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 016325/0837 →
Continuity (1)
Related Publication 20060259003A1 · Nov 16, 2006