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In items that are very common in life, some packings often use packing belts . The raw materials of the packing belts are different, so different packing belts have different toughness and the degree of toughness determines the range of use of the packing belt. Some small packaging, the wear resistance of the strap is not affected, but on some large packaging, the toughness of the strap must be passed, otherwise it is easy to loose, the following teaches you how to distinguish the material of the strap Bad.
1, the penetration is better than the impervious, no matter what color.
2, better than no gloss, the so-called gloss is the material itself, just like the human skin color, is the color of the surface of the material.
3: Ignite with a lighter, blow it out after 3 seconds, smell the smell of it, and distinguish the difference between it and the new material PP. It should be noted that some colors of the toner emit a large taste and will cover PP (PP). Part of the taste of the recycled material, don't worry, there are other ways.
4, drawing: After blowing fire, use iron objects to quickly contact the melt, and then quickly pull open to see if the formation of the wire is uniform, even is good, after a few times, the wires are overlapped , pull it open again, see if it has inelasticity, can it be pulled again and continuously, and it is good to break after breaking or opening a distance.
5, the above can not be confirmed, please use the fire again, in the process of burning quickly black smoke or melt quickly dripping, not good.
6, with a tooth bite: first go to experience the strength of the new material PP (PP recycled material), and then compare, if relatively soft, absolutely inside the plus PE
7. Look at the section of the incision: the section is rough and dull, and the material quality is poor.
8, floating water: As long as there is submerged water, if the above is not sure, or can not decide, then only test machine. My personal opinion is that no matter how good or bad, we must pass the machine identification, because this is the most insurance. Other materials can also be applied to the above, of course, you must understand the nature of the new material first.
The above are some methods to verify the quality of the package . If you want to avoid using inferior packaging, you can also buy some good packaging tapes in your bag for emergency.
For more information, please pay attention to the packing belt industry network:
Polyester Briefs,Polyester Boxer Briefs,Mens Polyester Underwear,Mens Polyester Boxers
Liya Garment Limited Company , https://www.liyaunderpants.com