fig3
From: Stretchable zipper
Figure 3. Mechanical properties of stretchable zipper. Maximum zipping force (A) under conditions of two tapes with the same strain or (B) different strains; Breaking force per unit length (C) under conditions of two tapes with the same strain or (D) different strains; (E) Slider lock holding force; (F) Strength of each component of the zipper.