How to identify the quality of packing and reclaimed material 1. Luster: Gloss is better than no luster. The so-called luster is the material itself, just like human skin color, is the color of the material surface.
2. Color: Anything with transparency is better than nothing, no matter what color it is.
3. Bite with teeth: first try the new material PP (PP recycled material) strength, and then compare it, if relatively soft, absolutely add PE inside.
4. Look at the section of the incision: The section is rough and unsharp, and the material quality is poor.
5. Float: As long as there is submerged or poor, if the above is not sure, or uncertain, it is only the test machine. My personal opinion is that whether it is good or bad, it must be certified by machine, because it is the most secure. Other materials can also be applied to the above, of course, they have to understand the nature of the new material first.
6. Smell: Ignited with a lighter, blown off after 3 seconds, smelled its smell of smoke, distinguished the difference between it and the new material PP, which should be noted that some colors of the toner emitted a greater taste, will cover up PP ( Part of the taste of PP recycled material, don't worry, there are other ways.
7. Drawing: After the fire is extinguished, quickly contact the melt with an iron object, and then quickly pull it apart to see if the forming of the wire is uniform. It is uniform and good material. After several pulls, the wires are overlapped. Pull it open again to see if it has any elasticity. Can it be pulled open again and again. It is good to break without breaking or breaking apart.
8. If you can't confirm the above, please burn it again. In the process of burning, you should take a quick smoky or drastically dripping. It's not good material.
For more packaging information, please pay attention to China's packing belt trading network, there is a demand for packaging can contact QQ, electricity

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