Causes of poor printing of woven polypropylene bags

During the processing of the woven polypropylene bags factory, if there is a problem of poor printing during printing, what is the cause?

First of all, we should understand that the printing fastness of the woven bag is poor, which is mainly manifested as the ink layer fades after the woven bag is printed. This is most likely because in the production process, the surface corona has not been treated properly, the temperature and relative humidity of the printing workshop are too high, and the dissolved hydrogen bonding force of the ink system is too different from that of the woven bag substrate. It will also cause the printing of woven polypropylene bags to be weak, which requires manufacturers to control them well to produce high-quality products.

When we buy woven polypropylene bags, we must also pay attention to checking the ingredients used in the woven polypropylene bags, and they cannot contain toxic substances. All of these are very important.