Patent ID: 8667652
Filing Date: 2014-03-11
Classification: A44B,Y10T

Abstract:
1. A zip fastener comprising fabric fastener tapes having coil type coupling elements thereon, wherein each fastener tape includes a coating layer of thermoplastic material on a first surface of the fastener tape, that extends continuously along the first surface, is folded back continuously at an edge of the fastener tape, and extends continuously along a portion of a second surface of the fastener tape, wherein the coating layers on the first surfaces of the fastener tapes abut against each other at a center line of the zip fastener to form a seal, wherein each fastener tape has a gap between the coating layer on the second surface and the coil type coupling elements attached to the second surface that exposes a portion of the second surface of the fastener tape, wherein a barrier is disposed within each fastener tape between the coating layer on the first surface of the fastener tape and the coating layer on the second surface of the fastener tape, wherein the coil type coupling elements are formed only on the second surface of each fastener tape, wherein each fastener tape is configured to be sewn with a sewing thread to secure the zip fastener to an article, and wherein the barrier is disposed at a side of the coil type coupling elements relative to the sewing thread.