A durable nylon zip fastener is formed from a pull and two chains. A chain is formed from chain teeth joined to a cloth tape by means of sewing thread. The pull comprises an upper wing plate and a lower wing plate, the upper wing plate and the lower wing plate being connected together by means of a support core therebetween, forming an accommodation cavity permitting the chains to pass through. The accommodation cavity is provided with two guide inlet openings near a support core end, used to guide in each of the two chains. Another end of the accommodation chamber is provided with a meshing exit opening, used to guide out the two meshed chains. The upper wing plate comprises an upper plate body holding the chain teeth from above and an upper flange part holding the chain teeth from two sides.

A durable nylon zip fastener is formed from a pull and two chains. A chain is formed from chain teeth joined to a cloth tape by means of sewing thread. The pull comprises an upper wing plate and a lower wing plate, the upper wing plate and the lower wing plate being connected together by means of a support core therebetween, forming an accommodation cavity permitting the chains to pass through. The accommodation cavity is provided with two guide inlet openings near a support core end, used to guide in each of the two chains. Another end of the accommodation chamber is provided with a meshing exit opening, used to guide out the two meshed chains. The upper wing plate comprises an upper plate body holding the chain teeth from above and an upper flange part holding the chain teeth from two sides.

The prevent invention provides a zipper head assembly structure and a slidable element thereof. The sliding element has a base portion, two lateral wall portions, and a seat portion. The base portion has a front side and a back side. The two lateral wall portions are respectively upwardly extended from two opposite lateral sides of the base portion, and the two lateral wall portions correspond to each other and are connected to the front side of the base portion. The seat portion is disposed on the base portion and connected to the back side of the base portion. The seat portion has a main body disposed on the base portion and connected to the back side of the base portion, two strip convex ribs respectively disposed on two opposite sides of the main body, and two concave spaces respectively connected to the two strip convex ribs.

The prevent invention provides a zipper head assembly structure and a slidable element thereof. The sliding element has a base portion, two lateral wall portions, and a seat portion. The base portion has a front side and a back side. The two lateral wall portions are respectively upwardly extended from two opposite lateral sides of the base portion, and the two lateral wall portions correspond to each other and are connected to the front side of the base portion. The seat portion is disposed on the base portion and connected to the back side of the base portion. The seat portion has a main body disposed on the base portion and connected to the back side of the base portion, two strip convex ribs respectively disposed on two opposite sides of the main body, and two concave spaces respectively connected to the two strip convex ribs.

The prevent invention provides a mold core assembly and a slidable element. The mold core assembly is used to form a partial shape of the sliding element applied to a zipper head assembly structure. The mold core assembly includes a first mold core structure and a second mold core structure. The first mold core structure has two first lateral structure bodies and a first middle structure body disposed between the two first lateral structure bodies. The first middle structure body has two first extending portions. The second mold core structure has two second lateral structure bodies and a second middle structure body disposed between the two second lateral structure bodies. The second middle structure body has two second extending portions corresponding to each other. Each first extending portion has a nonuniform thickness, and each second extending portion has a nonuniform thickness.

The prevent invention provides a mold core assembly and a slidable element. The mold core assembly is used to form a partial shape of the sliding element applied to a zipper head assembly structure. The mold core assembly includes a first mold core structure and a second mold core structure. The first mold core structure has two first lateral structure bodies and a first middle structure body disposed between the two first lateral structure bodies. The first middle structure body has two first extending portions. The second mold core structure has two second lateral structure bodies and a second middle structure body disposed between the two second lateral structure bodies. The second middle structure body has two second extending portions corresponding to each other. Each first extending portion has a nonuniform thickness, and each second extending portion has a nonuniform thickness.

Aspects herein are directed to a flexible and breathable slider assembly for an article of apparel. The slider assembly includes a first slider tape having a first longitudinal edge with a first series of alternating peaks and troughs and a second longitudinal edge. The slider assembly also includes a third longitudinal edge with a second series of alternating peaks and troughs and a fourth longitudinal edge. A first textile edge of the article is attached to respective peaks of the first series of peaks but is unattached from respective troughs of the first series of troughs to form a first series of spaces. A second textile edge of the article is attached to respective peaks of the second series of peaks but is unattached from respective troughs of the second series of troughs to form a second series of spaces.

Aspects herein are directed to a flexible and breathable slider assembly for an article of apparel. The slider assembly includes a first slider tape having a first longitudinal edge with a first series of alternating peaks and troughs and a second longitudinal edge. The slider assembly also includes a third longitudinal edge with a second series of alternating peaks and troughs and a fourth longitudinal edge. A first textile edge of the article is attached to respective peaks of the first series of peaks but is unattached from respective troughs of the first series of troughs to form a first series of spaces. A second textile edge of the article is attached to respective peaks of the second series of peaks but is unattached from respective troughs of the second series of troughs to form a second series of spaces.

A zipper (1) comprising at least one sensor unit (9), wherein the at least one sensor unit (9) is designed to detect a slider position and/or a change in the slider position of a slider (2) of the zipper (1) and to provide a slider position signal corresponding to the detected slider position and/or a slider position change signal corresponding to the detected change in the slider position. A slider (2) for a zipper (1) and a method for operating a zipper (1) are also provided.

A zipper (1) comprising at least one sensor unit (9), wherein the at least one sensor unit (9) is designed to detect a slider position and/or a change in the slider position of a slider (2) of the zipper (1) and to provide a slider position signal corresponding to the detected slider position and/or a slider position change signal corresponding to the detected change in the slider position. A slider (2) for a zipper (1) and a method for operating a zipper (1) are also provided.