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Zip fastener
We stick together - Zips from Opti
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Basic models
The three basic models of zip fastener

Spiral zip fastener (S-technology)

A plastic spiral is woven into a textile tape, or sewn onto a textile tape.
Spiral zip fastener (concealed)

A plastic spiral is sewn onto a textile tape (woven or knitted) and then the tape is pleated.
Profile zip fasteners

Molten plastic granules are injected onto a woven textile tape.
Metal zip fasteners

Metal members are attached to a woven textile tape.