A zipper assembly including a left side tape configured with a plurality of left fastener teeth, and a right side tape configured with a plurality of right fastener teeth, defining together a zipper path, and at least one primary slider member slidingly displaceable along the zipper path for interlocking engagement or disengagement of left fastener teeth with corresponding right fastener teeth, wherein at least a portion of the zipper path is configured with a raceway extending through alternating neighboring left fastener teeth and right fastener teeth, said raceway configured for slidingly accommodating a flexible strip articulated at a first end thereof to the at least one slider member.

A zipper assembly including a left side tape configured with a plurality of left fastener teeth, and a right side tape configured with a plurality of right fastener teeth, defining together a zipper path, and at least one primary slider member slidingly displaceable along the zipper path for interlocking engagement or disengagement of left fastener teeth with corresponding right fastener teeth, wherein at least a portion of the zipper path is configured with a raceway extending through alternating neighboring left fastener teeth and right fastener teeth, said raceway configured for slidingly accommodating a flexible strip articulated at a first end thereof to the at least one slider member.

A material closure assembly including a material closure, such as zipper or a hook and loop fastener, having a first portion and a second portion that are configured to be releasably joined together; an electrical circuit that is configured to be closed when the first portion of the material closure is entirely joined with the second portion of the material closure; and an first indicator that is electrically connected to the electrical circuit and configured to indicate that the first portion of the material closure is entirely joined with the second portion of the material closure. The material closure assembly thus providing an active feedback system for closures on garments and personal protective equipment (PPE) to alert wearer of incomplete seals between interfaces on modular PPE which could result in the wearer of the PPE being exposed to the surrounding environment outside the PPE.

A fastener tape includes a mounting part for mounting a fastener element and a sewing part for sewing a fabric. The mutually adjoining sides of the mounting part and sewing part are integrally connected to each other. Another side of the mounting part which is spaced distantly from the sewing part provides a fastener element mounting side for mounting the fastener element. The sewing part is constituted of a plain weave texture.

A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ΔH.sub.120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ΔH.sub.120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

According to various implementations, a flame-resistant and heat-resistant fastener chain includes a pair of left and right fastener tapes and a pair of left and right continuous fastener elements. Each fastener tape includes a facing tape side edge that faces the facing tape side edge of the other fastener tape. The left continuous fastener element is coupled to the left fastener tape adjacent the facing tape side edge of the left fastener tape and the right continuous fastener element is coupled to the right fastener tape adjacent the facing tape side edge of the right fastener tape. Each continuous fastener element includes a coiled monofilament that includes a high temperature polymer. In some implementations, the continuous fastener element includes a cord around which the coiled monofilament is wrapped.

According to various implementations, a flame-resistant and heat-resistant fastener chain includes a pair of left and right fastener tapes and a pair of left and right continuous fastener elements. Each fastener tape includes a facing tape side edge that faces the facing tape side edge of the other fastener tape. The left continuous fastener element is coupled to the left fastener tape adjacent the facing tape side edge of the left fastener tape and the right continuous fastener element is coupled to the right fastener tape adjacent the facing tape side edge of the right fastener tape. Each continuous fastener element includes a coiled monofilament that includes a high temperature polymer. In some implementations, the continuous fastener element includes a cord around which the coiled monofilament is wrapped.

A coil-shaped fastener element is sewn to a fastener tape without using a core string. An upper leg portion of the fastener element has a first upper surface continued from a connecting portion and contacting a sewing thread, and a second upper surface extending and sloping upward from the first upper surface via a bent portion. A height dimension between a top end surface and the bent portion of the upper leg portion is 20% or larger of a height dimension of the fastener element. The upper leg portion has a first lower surface which is sloped to be apart from the fastener tape toward a coupling head portion, and the upper leg portion has an element contacting portion in an area of the first lower surface. Thereby, cost reduction of the slide fastener can be attained, and the fastener element can be prevented from passing through the sewing thread and exiting.

A coil-shaped fastener element is sewn to a fastener tape without using a core string. An upper leg portion of the fastener element has a first upper surface continued from a connecting portion and contacting a sewing thread, and a second upper surface extending and sloping upward from the first upper surface via a bent portion. A height dimension between a top end surface and the bent portion of the upper leg portion is 20% or larger of a height dimension of the fastener element. The upper leg portion has a first lower surface which is sloped to be apart from the fastener tape toward a coupling head portion, and the upper leg portion has an element contacting portion in an area of the first lower surface. Thereby, cost reduction of the slide fastener can be attained, and the fastener element can be prevented from passing through the sewing thread and exiting.