Process of manufacturing a refastenable mechanical fastening system
First Claim
1. A method for manufacturing a fastening material having prongs, the method comprising the steps of:
- providing a thermally sensitive material;
heating said thermally sensitive material to at least the melting point;
providing a substrate transported in a first direction;
depositing discrete amounts of said thermally sensitive material on said transported substrate;
stretching said discrete amounts of thermally sensitive material in a direction having a vector component parallel to the plane of said substrate;
severing said stretched thermally sensitive material to form prongs having shanks, each of said shanks having a distal end and engaging means thereon; and
imparting an azimuthal angle of between about 20 degrees to about 160 degrees to said shanks of said prongs.
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Accused Products
Abstract
The invention is a refastenable mechanical fastening system, made of free formed prongs joined to a substrate. The prongs taper and are nonperpendicularly oriented relative to the plane of the substrate. The prongs also have an azimuthal angle relative to the machine direction of the substrate. Each prong has an engaging means projecting laterally from the periphery of the prong. The free formed prongs are manufactured by the process of depositing liquid material onto a moving substrate, stretching the liquid material in a direction parallel to the plane of the substrate, severing the stretched material to form the distal end and engaging means of the prong, and imparting an azimuthal angle to the prong. The advantageous usage of the fastening system in an article of manufacture, such as a disposable absorbant garment, specifically a diaper.
113 Citations
16 Claims
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1. A method for manufacturing a fastening material having prongs, the method comprising the steps of:
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providing a thermally sensitive material; heating said thermally sensitive material to at least the melting point; providing a substrate transported in a first direction; depositing discrete amounts of said thermally sensitive material on said transported substrate; stretching said discrete amounts of thermally sensitive material in a direction having a vector component parallel to the plane of said substrate; severing said stretched thermally sensitive material to form prongs having shanks, each of said shanks having a distal end and engaging means thereon; and imparting an azimuthal angle of between about 20 degrees to about 160 degrees to said shanks of said prongs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification