Absorbent article with composite sheet comprising elastic material

Abstract

A process is claimed for making a composite sheet (10) useful for an absorbent article, said composite sheet (10) comprising a wrinkled, patterned elasticized region (12) that comprises a patterned first sheet (13) and an elastic material (15), said first sheet (13) being patterned with troughs (16), that are typically compacter, i.e. of higher density, prior to attachment to the elastic material (15). The troughs (16) are attached to the elastic material (15). The resulting composite sheet (10) has a uniform wrinkle pattern. Also claimed are specific absorbent articles.

Description

field of invention [0001] The present invention relates to specific corrugated, patterned elasticized composite sheets and methods of making specific such composite sheets having improved corrugated characteristics. The present disclosure also relates to absorbent articles comprising such composite sheet materials. Background of the invention [0002] As is well known, absorbent articles may include leg cuffs or barrier cuffs, which are usually made of barrier material and are usually elasticized for a better fit and better seal. Other components of the absorbent article, such as the waistband, may also be elasticized. These elasticized components typically contact the wearer's skin. Another example of an elasticized component of an absorbent article is a so-called anal and / or vaginal cuff, also known as an elasticized topsheet or elasticized topsheet with one or more openings. This can be used to isolate feces, blood and / or urine from the skin, eg, under the cuff. This ...

AI Technical Summary

Problems solved by technology

However, it has been found that especially when production is performed at high speeds, or when elastics are applied in curvilinear patterns, or when elastics are applied at high strains, or when the material to be elasticized is thick or hard (such as with high may occur when the material is blocked), it is difficult to produce an elasticized article with uniform elastic characteristics and uniform wrinkles

[0004] The inventors have discovered that in prior art methods where the elastic material is bonded to the nonwoven with adhesive only in the stretched state, the bonding of the elastic material in the stretched state can result in irregularly bonded regions and subsequent irregular folds

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