The present disclosure provides a method for manufacturing a watertight zipper for solving the problem of production difficulties. A method for manufacturing a watertight zipper according to the present disclosure includes: forming a waterproof tape by extruding a polymeric material in melted state wrapping around an outer surface of a cloth tape, cutting a side of the waterproof tape that is covered by the thick waterproof layer by laser to form a side surface of the thick waterproof layer in a plane form as an abutting surface, forming a plurality of apertures at the waterproof tape, wherein each of the plurality of apertures extends through the cloth tape and the thick waterproof layer, and forming a plurality of scoops corresponding to the plurality of apertures by injection molding. The waterproof tape includes a thick waterproof layer and a thin waterproof layer both formed by the polymeric material in solidified state. The thick waterproof layer covers a side surface, an upper surface and a lower surface of the cloth tape. The thin waterproof layer connects with the thick waterproof layer. Each of the plurality of scoops spaces from the thin waterproof layer. An end of each of the plurality of scoops extends beyond the abutting surface of the thick waterproof layer.

A zipper pull, a head portion of which is structurally configured to fit snugly into a housing structure (referred to as a “garage”) is located at the top stops of an otherwise conventional waterproof or water resistant zipper. The garage and zipper pull thereby forming form a water resistant seal to eliminate any chance of water penetration in water resistant and waterproof zippers.

A method for assembling a garment portion including accessing a first garment portion, a second garment portion and a fixture, wherein the first garment portion is generally tubular and has two plies. The method further includes positioning the first garment portion on the fixture such that the fixture is positioned in the first garment portion, and wrapping the second garment portion about the first garment portion. The method further includes unrolling or unfolding at least part of the first garment portion over the second garment portion such that the second garment portion is positioned between the two plies of the first garment portion.

A method for assembling a garment portion including accessing a first garment portion, a second garment portion and a fixture, wherein the first garment portion is generally tubular and has two plies. The method further includes positioning the first garment portion on the fixture such that the fixture is positioned in the first garment portion, and wrapping the second garment portion about the first garment portion. The method further includes unrolling or unfolding at least part of the first garment portion over the second garment portion such that the second garment portion is positioned between the two plies of the first garment portion.

A slider for a waterproof slide fastener includes an upper blade and a lower blade opposing each other in an up-down direction, and a connecting post connecting the upper blade with the lower blade. Each of opposing surfaces includes a close-contact surface for sandwiching and close-contacting with a first stop in the up-down direction. At least one of the opposing surfaces includes right and left inclined surfaces provided respectively on right and left sides at a front sides of the close-contact surface and inclined in a direction widening a gap between the upper blade and the lower blade as the right and left inclined surfaces go forward. The at least one of the opposing surfaces includes an extended close-contact surface provided between the right and left inclined surfaces and extending forward from the close-contact surface.

A closure having a first flange with first engagement mechanism and a second with a second engagement mechanism disposed between the first end and the second end. The first engagement mechanism configured to engage the second engagement mechanism. A slider configured to selectively engage the first engagement mechanism and the second mechanism when moved in a first direction and disengage the first engagement mechanism from the second engagement mechanism when moved in a second direction. The closure is substantially watertight in the closed position.

A closure having a first flange with first engagement mechanism and a second with a second engagement mechanism disposed between the first end and the second end. The first engagement mechanism configured to engage the second engagement mechanism. A slider configured to selectively engage the first engagement mechanism and the second mechanism when moved in a first direction and disengage the first engagement mechanism from the second engagement mechanism when moved in a second direction. The closure is substantially watertight in the closed position.

A sealed zipper assembly includes a first zipper segment and a second zipper segment in overlapping relation to create a sealing zone. A sealing element is positioned in the sealing zone to prevent leakage between the first zipper segment and the second zipper segment.

A sealed zipper assembly includes a first zipper segment and a second zipper segment in overlapping relation to create a sealing zone. A sealing element is positioned in the sealing zone to prevent leakage between the first zipper segment and the second zipper segment.

A slide fastener chain includes first and second rows of coupling elements mounted on first and second longitudinal edges of the first and second fastener tapes. When the first and second rows of coupling elements are interdigitated, the first and second longitudinal edges remain spaced apart, and a first coupling element of the first row is received between two adjacent coupling elements of the second row such that: the groove of the first coupling element receives, in a first contact region, a portion of the second longitudinal edge, one of the grooves of the adjacent coupling elements receives, in a fourth contact region, a first portion of the first longitudinal edge, and another of the grooves of the adjacent coupling elements receives, in a fifth contact region, a second portion of the first longitudinal edge.