Identification of the quality of the baked blue packing steel strip

The quality of the baking blue packing steel belt depends on whether the polypropylene of the baking blue packing steel belt is high or not. At present, there are many kinds of baking blue packing steel belts on the market: pure polypropylene, polypropylene plus masterbatch , Polypropylene plus recycled materials, polypropylene plus recycled materials and master batches. The toasted blue strapping steel belt produced by pure polypropylene is fully transparent, the baling place produced by polypropylene plus masterbatch is translucent, the toasted blue strapping steel belt produced by polypropylene plus recycled materials is basically opaque, and polypropylene plus mother The toasted blue baling steel strip produced from raw materials and recycled materials is completely opaque. There is also a kind of toasted blue strapping steel belt made of fully recycled materials and calcium carbonate powder sandwich material. The toasted blue strapping steel belt produced from completely recycled materials is relatively soft. Only the surface of the sandwich material is the raw material, and the rest are all Calcium carbonate powder (lime powder). The quality of the baked blue steel strap depends entirely on the purity of the polypropylene. The higher the purity of the polypropylene, the better the tension of the baked blue steel strap.