String zipper designs for slider-operated reclosable packaging

A reclosable package comprising a receptacle having a mouth, a string zipper joined to the receptacle at the mouth, the string zipper comprising first and second mutually interlockable zipper strips, and a slider mounted over the string zipper to cause the first and second zipper strips to separate when the slider is moved in one direction along the string zipper and to cause the first and second zipper strips to interengage each other when the slider is moved in an opposite direction along the string zipper. In one exemplary embodiment, the first flangeless zipper strip comprises two monohook elements, and the second flangeless zipper strip also comprises two monohook elements. In another exemplary embodiment, the first flangeless zipper strip comprises one monohook element and one double hook element, while the second flangeless zipper strip comprises three monohook elements.