Patent ID: 8327509

Claim:
A liquid-tight slide fastener, comprising: a pair of right and left coil-like coupling element rows, each coil-like coupling element row being sewn to an opposing side edge of a pair of right and left fastener tapes; a pair of core threads passing through the pair of coil-like coupling element rows, wherein the core threads, but not the coupling element rows, are coated with a water repellant agent or oil repellant agent; and a pair of liquid tight layers formed on the pair of right and left fastener tapes, so that opposing side edges of the liquid tight layers are in contact when the pair of right and left coil-like coupling element rows are coupled, wherein the liquid tight layers are formed on surfaces of the right and left fastener tapes that are opposite to surfaces to which the coil-like coupling element rows are attached, and wherein the liquid tight layers extend to the edges of the fastener tapes.