Waterproof zip

The utility model relates to a waterproof zip all installs an elasticity crimping strip towards the extension of chain tooth in the outside surface of the positive installation chain tooth of every cloth department, and every elasticity crimping strip all extends and can cover to the inboard tip of the chain tooth of homonymy the zip head is positive, and the mutual crimping after the zip head is with chain tooth locking of these two elasticity crimping strips is in the same place, and seam is sealed in the two terminal surface that contacts each other formation. The utility model discloses in, it is sealed that positive elasticity crimping strip has formed first way, positive emulsion sheet formed the second say sealed, the chain dentification third say sealedly, the elasticity crimping strip at the back has formed the fourth and has said sealedly, though the sealed effect of emulsion sheet and chain dentification is less better, total effect that the four layers is sealed is very good, can effectual water o