A film blowing machine heats and melts plastic particles before blowing them into a thin film.
There are many types of film blowing machines, including PE, POF, PVC, and so on.
The new material blown out with brand new particles is uniform in color and clean, and the bag is well stretched.
Some people also use recycled plastic bags to make particles, which are generally called old materials. When making particles, they are usually gray, and when making bags, they usually need to add pigments. When making bags, the colors are uneven, brittle, and easily broken, and the price is also lower.
Although it is a recycled plastic bag, it is generally a waste bag in the bag making process, which is quite different from the garbage plastic in the usual sense.
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