Disposable underpants having discrete outer seals
AssigneeKimberly-Clark Corporation
InventorsDavid T. Strohbeen, John I. VanDeurzen
Life of this patent
Estimating the term…
Abstract
The invention is generally accomplished by providing a disposable undergarment having a multi-layer web and sealed with small, neat, exterior seams. The exterior seams are sealed along a plurality of narrow lines such that the total seam is less than about 3/16" wide with the bonding area forming about 50% of said total seal area. The seam is preferably formed by means of an ultrasonic anvil.
Claims23
A disposable garment comprising a multilayer web and at least one sealed exterior seam formed by bringing the inner surfaces of multilayer webs at their respective edges into contact such that the resulting seam extends outwardly from the garment and wherein said at least one seam is sealed with at least two narrow lines, the total seam is less than about 3/16" wide.
A method of forming an exterior seam in a garment comprising bringing together at least two webs of multiple layer material, such that the inner surfaces of said webs at their respective edges are joined and the resulting seam extends outwardly from said garment, sealing said materials together along at least two narrow lines forming a seal less than about 3/16" in width.
A disposable underpant of the type having a liquid-pervious inner bodyside liner and a liquid-impervious outer cover that define a front panel and a rear panel, and an absorbent batt between the liner and the cover, comprising, in combination:
- (1) narrow exterior side seams joining together part of marginal side portions of the front and rear panels to define a three-dimensional underpant having a pair of leg openings and a waist opening, said narrow exterior seams being formed by joining the inner surfaces of the front and back panels at their respective edges such that the resulting seam extends outwardly from the garment;
- (2) first elastic means extending about one leg opening, second elastic means extending about the other leg opening, and third elastic means extending about the waist opening;
- and
- (3) the outer cover consisting of an inner layer of liquid-impervious plastic material and an outer layer of nonwoven fibrous material, wherein the inner layer faces the absorbent batt, and the outer layer is the exterior surface of the disposable underpant.
Dependencies are inferred from the claim text.