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Hip Sing Packaging Products (Shenzhen) Co. Ltd

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What is the difference between the PP box and the PET box?

2019-12-09
Times

PP packaging box is made of PP plastic. PP is a relatively special material. In the processing of plastic boxes, there are several places to pay attention to this material.

There are several ways to close PP plastic boxes. Ultrasonic bonding can be used. The advantage of this bonding is very strong, but the production cost of this process is high. In addition to ultrasonic bonding, there is also heat gun adhesion. PP plastic is very different from PET and PVC. The plastic boxes produced by PET and PVC can only be glued with glue, but the PP plastic box is heated with a heat gun to the close position. After the heat of the softening process is reached, the PP plastic box is stained. The combination can be adhered without the adhesive itself, which is the characteristic of this material itself. The advantage of the interface adhesion of the hot air gun is that there is no need to use an external adhesive, which reduces the use of materials. However, this process has specific use conditions.

What is the difference between the PP box and the PET box?

In addition to the two adhesion processes described above, the most commonly used is glue adhesion. But this process is also the most prone to quality problems. Due to the lack of experience of some packaging factory technicians, in the processing and production of PP plastic boxes, they found that the adhesion was not strong enough, and there was no improvement when they changed other glues. They did not find the problem. This situation is not caused by the quality or type of glue. Because of the special properties of PP materials, you must pay attention when you start to produce this raw material. If it is a PP material used for blister, it does not matter. As long as it is a PP packaging box with a glue bonding process, it must be supplied with the raw material The dealer explained the purpose and made them pay attention to the formula ratio. After this material is produced, it is necessary to immediately start the production and processing of the plastic box, because if it is left for a long time, the adhesion of the plastic box will appear insecure. This is the difference between the packaging materials of PP and other materials.


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