TIGHT ZIP Russian patent published in 2011 - IPC A44B19/00 

FIELD: personal use articles.

SUBSTANCE: tight zip (10; 110; 210), having a couple of tapes (12), every of which is constrained with two opposite long edges (13a) and two opposite short edges (13b) and represents a strip (14) of textile material, at least opposite sides of which are coated with a protective layer (16, 18) of a material that retains fluid medium, at the same time the strip (14) does not have such a protective layer at least at one of short edges (13b) of each tape (12), and each tape (12) is equipped at least on the section of one of its long edges (13a) with teeth (21) aligned in a row (20), which face each other and are joined to a limiter (24) of unzipping and an opposite limiter (26) of zipping, and a movable runner (22), which is installed with the possibility of sliding between the limiter (26) of zipping and the limiter (24) of unzipping with the possibility of tight connection or disconnection of teeth (21), accordingly, differing by the fact that it additionally has a coating formed on each tape (12) on the specified at least one short edge (13b), which does not have a protective layer and intended for tight coverage of the textile material strip (14) at the side of this (these) short edge (edges) (13b).

EFFECT: high reliability during long period of time regarding tightness.

20 cl, 10 dwg