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Side Seal Foldover Regions in Feminine Care Articles

IP.com Disclosure Number: IPCOM000032711D
Publication Date: 2004-Nov-10
Document File: 5 page(s) / 423K

Publishing Venue

The IP.com Prior Art Database

Related People

Ken Leick: AUTHOR [+2]

Abstract

Sanitary napkins and other feminine care articles can have improved comfort and functionality by adding a side seal region that folds over the edge of the article, reducing irritation to the thigh.

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Side Seal Foldover Regions in Feminine Care Articles

  Ken Leick and Shelley Rasmussen Kimberly-Clark Corporation, Neenah, WI

Abstract

Sanitary napkins and other feminine care articles can have improved comfort and functionality by adding a side seal region that folds over the edge of the article, reducing irritation to the thigh.

I. First Embodiment: Folded Toward the Backsheet

An absorbent article can be provided with a side seal foldover region that can be tacked down toward the garment side of the article to present a softer edge for reduced irritation to the inner thigh of the wearer. The basic concept is illustrated in Figure 1, showing the backside (garment-side view) of a sanitary napkin with wings and a side seal foldover region. The perceived stiffness of the longitudinal sides of the article is reduced by the folded side seal, which presents a more comfortable edge.

Figure 1. Plan view of the garment-side of an article with side seals and wings.

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The side seals shown in Figure 1 are extensions of the backsheet of the sanitary napkin, adapted to be folded over longitudinal fold lines on either side of the absorbent article. Between the folded-over portion of the side-seal and the central portion of the backsheet are two wings, which are joined to the backsheet near the sides of the article. One or both of the free ends of the wings may be provided with a segment of hook material for mechanical fastening of the wing either to an opposing wing or to an undergarment.

In the embodiment shown in Figure 1, the side seals cover the base portions of the wings, such that at least a portion of the transverse wing edges that join to the backsheet are shielded, preventing contact with the skin of the user's legs such that the risk of irritation or discomfort is reduced.

The side seals can be joined to the wings in overlapping using adhesives, ultrasonic bonding, thermal bonding, or other means. Further, near the base of each wing, an adhesive region may be provided, as shown in Figure 1, where adhesive is applied to tack down the wings near the edges of the article to further prevent edges of the wings or side seals from touching the skin. In alternative embodiments, means other than adhesives can be applied in the region labeled "adhesive zone" to tack down the wings. Such means can include ultrasonic bonding, thermal bonding, mechanical fasteners, etc.

Figure 2 shows a cross-sectional view taken along one half of a transverse cross-section of the article shown in Figure 1, with the garment-side of the article oriented upward. The absorbent core is disposed between a body-side liner (topsheet) and a backsheet. The body-side liner and backsheet extend past the side of the absorbent core and form a side seal, which is folded over toward the garment side of the article. Between the folded over side seal and the backsheet is a wing, which has a portion coextensive with...