Layout of zippers, technical terminology

layout_of_zippers_eng

Textile tapes: pair of weaved, dyed textile bands. Concordia zipper tapes are made of polyester. Polyester – cotton and pure cotton tapes can be produced according to the needs.

Fastening chain: double line of fastening parts, fixed on pairs of tapes. The connection of the fastening chains entrust the required lifetime and capacity.

On plastic zippers (type RT) the fastening chain is a spiral plastic chain made of polyester monofilament. The spirals are sewed on the tapes.
On metal zippers (type VT) the fastening chain is a row of metal tooth, which are pressed on the textile bands one by one. They are made of yellow brass, aluminum or German silver.

Slider: metal item made of several parts to open and close the fastening chain, made of zinc-based die casting alloy with lacquer or galvanic cover. According to function and mechanic the slider can be automatic or loose.

Auto lock slider: to avoid non-requested opens, a spring is built in the slider which opens automatically when using the zipper.
Non lock slider: there is no spring in the slider.

Bordering parts: the sliders path are limited with top and bottom stops.