Resin Zipper: Resin Zipper (树脂拉链)
A zipper with teeth injection moulded from POM or similar engineering plastic directly onto the tape. Moulded teeth are uniform, rigid and available in precise colours, and they resist corrosion and low temperatures. Resin zippers are common on sportswear, luggage and outdoor products. Strength depends on moulding pressure, tooth geometry and the mechanical bond between tooth and tape, which is checked by single-tooth tensile tests.