Moulded plastic zippers: POM, Vislon and injection-moulded teeth
Injection-moulded POM elements on polyester tape — why #5 and #8 plastic zippers belong on down jackets and bags, and how they differ from coil.
Coil (nylon) zippers: spiral elements on tape
How a nylon monofilament coil is wound on a filler cord, sewn or woven to tape, and why #3 and #5 coil remain the workhorse of apparel closures.
Metal zippers: brass, aluminium and zinc elements
How metal zipper teeth are stamped or cast onto tape, which alloy belongs on jeans versus a light jacket, and what plating has to survive.
How garment lace is classified
A buyer’s map of embroidery lace, chemical lace, Raschel lace and Leavers lace — and which construction belongs on bridal, lingerie or ready-to-wear.
How the trim supply chain splits
Upstream resins and metals, midstream mills, and the apparel brands that pull the orders — plus where China actually makes the parts.
Zipper sizes and gauge: #3, #5, #8 and #10
Gauge is closed-chain width, not a fashion number — how #3, #5, #8 and #10 map to garments, bags and outdoor gear, and why the slider must match.
