Raw black zipper

After the recycled waste nylon zipper is granulated,the finished product RPET directly produces black monoflament,whichbecomes the black chain zipper product after stitching and molding,which can be used directly without dyeing； Waste nylon zipper can achieve repeated recycling granulation processing.Product quality target will not be affected； The raw black material zipper production can reduce coal burning,treatment and discharge of dyeing wastewater and powerconsumption,can save dyeing auxiliaries,etc,which achieve true recycling,energy saving and emission reduction.