Fastener tape woven from yarns including plant-derived resin, fastener stringer and method of producing the same

A method of producing a fastener stringer, the method comprising:

• weaving a fastener tape;
• thermally processing the fastener tape;
• and
• performing injection-molding of resin-made fastener elements to the thermally-processed fastener tape, wherein
• the fastener tape is a faster tape in which a weft yarn and every ground warp yarn are yarns including plant-derived resin;
• the fastener tape comprises a first side-edge portion including a core cord and a plurality of first ground warp yarns, and a tape main portion adjacently positioned to the first side-edge portion and including a plurality of second ground warp yarns;
• and
• when the fastener tape is thermally processed, the first ground warp yarn shrinks more than the second ground warp yarn in accordance a difference in yarn type between the first ground warp yarn and the second ground warp yarn, the first ground warp yarn being FDY (Fully Drawn Yarn) and the second ground warp yarn being DTY (Drawn Textured Yarn).

A fastener tape comprising:

• a first side-edge portion including a core cord and a plurality of first ground warp yarns;
• and
• a tape main portion adjacently positioned to the first side-edge portion and including a plurality of second ground warp yarns, wherein
• a thermal shrinkage ratio of the first ground warp yarn is greater than a thermal shrinkage ratio of the second ground warp yarn in accordance with a difference in yarn type between the first ground warp yarn and the second ground warp yarn, the first ground warp yarn being FDY (Fully Drawn Yarn) and the second ground warp yarn being DTY (Drawn Textured Yarn).