Transverse direction zipper tape

摘要

A zipper strip for a reclosable package having a transverse zipper is provided. The zipper strip comprises a male interlocking profile (12) and a female interlocking profile (14). Each profile includes an interlocking member (16,18) and an integral web which defines a leading flange. The leading flanges (22,24) are sealed to thermoplastic film material which is used to make the reclosable packages and to each other. One of leading flanges is provided with a perforation (32) along its length so that it can be separated by pulling the profiles apart.