A method for manufacturing a waterproof fastener tape includes the steps of: forming a viscous waterproof layer on a releasable substrate; attaching the viscous waterproof layer formed on the releasable substrate to a fastener tape base fabric, and peeling the releasable substrate off the viscous waterproof layer that has been attached to the fastener tape base fabric; promoting curing of the viscous waterproof layer formed on the fastener tape base fabric to form a reduced-viscosity waterproof layer; and after the promoting of curing of the viscous waterproof layer, covering an exposed surface of the reduced-viscosity waterproof layer formed on the fastener tape base fabric with a releasable cover.

A slide fastener is characterized in that left and right first and second element rows thereof are composed of synthetic resin, with each being dyed a single color having a different spectral reflectance curve from each other. The slide fastener appears colorful and attractive and has an excellent appearance quality since the colors of the first and second element rows can be made to appear more vividly.

A monofilament having, in cross section, a first width and a second width being orthogonal to the first width and being greater than the first width is helically wound about the circumference surface of the mandrel. Each helical unit included in the configured helix of the monofilament includes a pair of legs, a first coupling portion coupled between said pair of legs, and a second coupling portion coupled between one leg of said pair of legs and the other leg of a pair of legs in an adjacent helical unit. The second width of said first coupling portion is oriented along the axial direction of the mandrel. The first coupling portion in each helical unit in the helix is pressed such that the second width of the first coupling portion is widened in its width direction, thereby forming an engagement head.

Fastener stringer includes: a fastener tape; a fastener element arranged on a side edge portion of the fastener tape; and a covering member made of soft material and covering the fastener tape, the covering member comprising a sealing portion positioned on an opposite side of the fastener element with respect to the fastener tape in a thickness direction of the fastener tape. The covering member includes a flexible core sheet extending in a longitudinal direction of the fastener stringer. The core sheet is embedded in the soft material such that one surface of the core sheet is at least partially exposed or both surfaces of the core sheet are not exposed.