There are many packaging films on the market now, commonly used include POF, PVC, PE. If you want to know the weight of each packaging film with different specifications and each bag, the following editor will briefly introduce how to calculate it for you.
Take the POF shrink film produced by ourselves. To calculate the weight of the bag, we must know the density of each shrink film, which is the specific gravity. The density of the POF shrink film is 0.92, the density of PE is 0.93, and the density of PVC It ’s 1.4. Let ’s take an example: the size of the bag is 25cm * 23cm * 1.9C thickness, we use length 25 * width 23 * density 0.92 * thickness 0.0038 (because the bag is two layers, it is 0.0038CM) It is concluded that the weight of each bag is 2.01 grams/piece. If you want to calculate how many can be made per kilogram, then divide 1000 grams by 2.01 grams/piece to equal about 497.
