Polyethylene terephthalate-based hook-and-loop fastener and method for manufacturing same

A method for producing a polyethylene terephthalate-based woven hook-and-loop fastener in which a multifilament yarn made of polyethylene terephthalate recovered from a polyethylene terephthalate bottle is used as a warp yarn, a polyester-based heat-fusible multifilament yarn is used as a weft yarn, and a monofilament yarn made of polyethylene terephthalate is woven as a yarn for hook-shaped engaging elements in parallel with the warp yarn, wherein hook-shaped engaging elements formed from the yarn for hook-shaped engaging elements are present on a surface of the polyethylene terephthalate-based woven hook-and-loop fastener, and the method comprising performing the following Step A, Step B, and Step D in this order:

• [Step A] a step of, when weaving a woven base fabric having a loop from the warp yarn, the weft yarn, and the yarn for hook-shaped engaging elements, weaving the yarn for hook-shaped engaging elements in parallel with the warp yarn, and at the same time, forming a loop for hook-shaped engaging element by causing the yarn for hook-shaped engaging elements to straddle the warp yarn and to rise in a loop shape from the surface of the woven base fabric at a straddling portion, and weaving the woven base fabric having a loop;
• [Step B] a step of guiding the woven base fabric having a loop to a heating region, heating the woven base fabric to a temperature equal to or higher than a temperature at which a heat-fusible component of the heat-fusible multifilament yarn is melted, and fixing a rising portion of the loop for hook-shaped engaging element to the woven base fabric having a loop by a melt from the heat-fusible multifilament yarn;
• and
• [Step D] a step of cutting one leg of the loop for hook-shaped engaging element to form the hook-shaped engaging element.