Plastic bags are usually PP-based, and PP is basically one of those materials that are hard to combine with pigment and titanium than PE.
Therefore, the masterbatch that is provided must have high pervasive power and high density in order to be able to paint appropriately.
In addition, due to the use of PP bags in heavy packing and the use of calcium carbonate in most of them, the masterbatch must be produced with a formulation that does not cause any problems during suturing and bearing the weight of the packaged product. Otherwise, the rupture occurs during production or loading .We have affordable, high-quality plastic bags for this market.