The distinguish method of packaged with good or bad

My company in the production of packaging with the modern enterprise management mechanism, has a research and development and in the design field service with rich experience and innovative professional and technical team, the production of packaging with high quality, then we will know the pack is good or bad for everybody to identify methods: packing tape quality stand or fall, to see whether the pack of polypropylene high purity is not high, currently on the market packed with quite a variety: have a pure polypropylene, polypropylene masterbatch and polypropylene plus reworked material, polypropylene and reworked material and masterbatch. Pure polypropylene production state of packing with transparent, add polypropylene masterbatch production for transparent packaging, packaging of polypropylene and reworked material production with largely opaque, polypropylene masterbatch and reworked material production pack completely opaque. There is a whole reworked material and calcium carbonate powder sandwich material in the production of packaging tapes, completely reworked material production pack is more soft, sandwich material strap only surface is raw materials, the rest are calcium carbonate powder. Take the stand or fall of quality depends entirely on the purity of polypropylene, the higher the purity of polypropylene packaging belt pulling force, the better.