PP woven bags are made of PP woven fabric made from virgin polypropylene plastic beads produced mainly from petroleum. They have high heat resistance from 1300C to 1700C, colorless, odorless and safe for human health. In addition, PP plastic also has a few other properties such as:
Quite stiff and difficult to stretch properly to form fine woven thread (PP woven roll)
When burned, it smells quite like rubber and produces a blue flame
Not impervious to water, air or grease
The main products have 2 colors: transparent white PP and milky white PP. If the case wants to have more different colors, the manufacturer will add the mixing process with Masterbatch colored resins.