Recycled Polyester: Recycled Polyester (再生聚酯)
Polyester made from post-consumer or post-industrial PET waste, used for zipper tape and sewing threads. It reduces reliance on virgin oil-based material and lowers carbon footprint while keeping strength and dyeability close to virgin polyester. Recycled content and chain of custody must be traceable, usually through GRS certification. Colour consistency and shrinkage are controlled as with conventional tape, and buyers may request transaction certificates.