SLIDE FASTENER FOR PREVENTING UPPER STOPPER FROM BEING MADE EMBRITTLE OR HARDENED BY WELDING

摘要

PURPOSE: A slide fastener is provided to prevent an upper stopper from being made embrittle or hardened by the welding, so that sliding resistance at the time of sliding of the slider by the upper stopper is reduced and itchy feeling and feeling of discomfort based on the configuration of the upper stopper are eliminated. CONSTITUTION: In the slide fastener having a stopper portion(4) composed of thermoplastic resin for restricting a sliding of a slider, the stopper portion is located at an end portion of a fastener element row attached along a side edge of a fastener tape(2) such that the same stopper portion is fixed by fusing with heat so as to sandwich the side edge portion of the fastener tape(2) from front and rear faces thereof. A contact face between an inside face of the stopper portion(4) and a surface of the fastener tape(2) has a weld portion(A,B) which is produced by heat welding and a non-weld portion which does not undergo heat welding.