FLUID-TIGHT SLIDE FASTENER

摘要

A fluid-tight slide fastener is disclosed which comproses a pair of stringer tapes each having an inner edge region, an outer edge region and a stretchable region intermediate between the two edge regions which are non-stretchable. The intermediate stretchable region is provided to yieldingly take up transverse stresses which would otherwise act upon the inner edge region to split apart the fastener halves and produce leakage therethrough.