Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2000-05-16
2002-05-28
Yao, Sam Chuan (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S226000, C156S227000, C156S256000, C156S270000, C156S290000, C156S292000, C156S304100, C156S304600, C156S308400, C604S387000, C604S390000, C604S391000
Reexamination Certificate
active
06395115
ABSTRACT:
FIELD OF THE INVENTION
This invention is directed to a process for making pant-like, personal care absorbent products having hook and loop fasteners on the side panels for ease of removal and donning without complete removal of a wearer's clothing.
BACKGROUND OF THE INVENTION
Pant-like absorbent garments, such as adult incontinence wear as well as infant and children's diapers, swim wear and training pants, typically have adhesive fasteners on the sides for donning and removal, or else rely on the waist opening and leg openings to slide on and off the wearer. Adhesive fasteners wear out in as little as one use. Therefore, if a care giver checks the status of the wearer's absorbent garment contents by unfastening an adhesive fastener, the garment often must be replaced due to a worn out adhesive fastener even if the absorbent garment itself is not in need of changing.
Absorbent garments that slide on and off a wearer are often messy when full. Furthermore, in order to remove such absorbent garments, the wearer's clothing covering the absorbent garments, such as pants, must be completely removed. Checking the status of the wearer's absorbent garment contents is often just as cumbersome as changing the absorbent garment.
There is a need or desire for a process for making pant-like, personal care absorbent garments that have refastenable side seams for ease of removal and donning without complete removal of a wearer's clothing.
SUMMARY OF THE INVENTION
The present invention is directed to a process for making pant-like absorbent garments having hook and loop fasteners applied at the sides of the garments. The process can be carried out in either the cross direction or in the machine direction. In the process of the invention, a fastening component is attached to each of two front side panels and to each of two back side panels of the garment assembly. A mating fastening component, wider than the fastening components, is placed over each fastening component. The garment assembly is then folded such that each mating fastening component on the front side panels is either face-to-face or back-to-back with a fastening component on the back side panels. A portion of each mating fastening component is then bonded to the adjacent mating fastening component at a distal edge of the mating fastening components. The bonded distal edges form standing butt seams.
The resulting absorbent garments have refastenable seams and can be easily fitted to and removed from a wearer without complete removal of a wearer's clothing. The refastenable side seams extend from a waist opening to each of two leg openings between a front panel and a back panel, and are “dual-sided” such that the garment can be unfastened at either the front panel or the back panel. Each of the refastenable side seams includes a fastening component and a mating fastening component, each of which comprises either a hook material or a loop material. The refastenable side seams experience a shearing strain during use, as opposed to peel forces, thereby reducing the likelihood of the seams opening unexpectedly.
With the foregoing in mind, it is a feature and advantage of the invention to provide a process for making a pant-like absorbent garment that can be easily applied to and easily removed from a wearer without the need to entirely remove the wearer's clothing.
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Coenen Joseph D.
Couillard Jack L.
Kuen David Arthur
Olson Christopher Peter
Popp Robert Lee
Kimberly--Clark Worldwide, Inc.
Pauley Petersen Kinne & Erickson
Yao Sam Chuan
LandOfFree
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