Concealed woven slide fastener

A concealed woven slide fastener stringer comprising:

• (a) a fastener tape woven of a plurality of foundation warp yarns and a double-pick foundation weft yarn;
• (b) a coiled fastener element attached to a folded inner margin of said fastener tape by a number of anchoring warp yarns and a double-pick anchoring weft yarn, which are woven in said fastener tape simultaneously with weaving of the fastener tape 2, and having a succession of coupling heads facing inwardly, a succession of connecting portions facing outwardly, and a succession of upper and lower legs;
• (c) a plurality of core cords inserted through said coiled fastener element at a side toward said connecting portions and sandwiched between the succession of upper legs and the succession of lower legs;
• and
• (d) said anchoring warp yarns extending over said upper legs (6) and being interlaced with said foundation weft yarn, said anchoring weft yarn being interlaced with some of said anchoring warp outer surface of one of said core cords which is disposed on a side toward said coupling heads, and crossing said foundation warp at a turnover portion of said folded inner margin of said fastener tape.