METHOD OF MAKING A MECHANICAL FASTENER USING DIVERGING DISKS

摘要

A method of making a mechanical fastener. The method includes providing a slit web having mechanical fastening elements, applying tension to the slit web in the machine direction, and spreading the slit web in the cross-machine direction by directing its side edges over two rotating diverging disks to provide a spread mechanical fastening web. The slit web includes a plurality of interrupted slits that are interrupted by intact bridging regions of the web. The two rotating diverging disks are laterally spaced and have a support surface between them that contacts the slit web during the spreading. The spread mechanical fastening web includes multiple strands of the slit web attached to each other at least at some of the intact bridging regions and separated from each other between at least some of the intact bridging regions.

主权项

1. A method of making a mechanical fastener, the method comprising:
providing a slit web having mechanical fastening elements and a length in a machine direction, wherein the slit web comprises a plurality of laterally separated interrupted slits that are interrupted by intact bridging regions of the web, wherein the interrupted slits extend in a first direction not parallel to a cross-machine direction, and wherein for at least some adjacent interrupted slits, the intact bridging regions are staggered in a direction transverse to the first direction; applying tension to the slit web in the machine direction; and spreading the slit web in the cross-machine direction by directing its side edges over two rotating diverging disks to provide a spread mechanical fastening web, wherein the two rotating diverging disks are laterally spaced and have a support surface between them that contacts the slit web during the spreading, and wherein the spread mechanical fastening web comprises multiple strands of the slit web attached to each other at least at some of the intact bridging regions and separated from each other between at least some of the intact bridging regions.