Patent attributes
A watertight zipper includes two zipper tapes each including: a base tape; zipper teeth arranged on the base tape, the zipper teeth on the two zipper tapes being matched with each other and capable of being engaged with each other to pull the two zipper tapes together; a first waterproof body extending to an inner side of the zipper tape, wherein in response to the two zipper tapes being pulled together, a first inner side surface of the first waterproof body of one of the zipper tapes is fit closely to a second inner side surface of the first waterproof of the other one of the zipper tapes, so that two first waterproof bodies are capable of covering over the zipper teeth together, and fit surfaces of the two first waterproof bodies laterally deviate from an engagement center line of the zipper teeth on the two zipper tapes.