PP bags are stretchable polypropylene plastics. It is characterized by non-toxic, tasteless, smooth and transparent surface. It is easy to burn, and the flame is molten and dripping, the upper part is yellow and the lower part is blue. After leaving the fire, there is little smoke and it continues to burn. Used in the packaging of stationery, electronics, hardware products and other industries. The color of the PP packaging bag is transparent, the quality is good, the toughness is good, and it is stronger and cannot be scratched. The processing cost of PP bags is very cheap.

On the one hand, when the packaging bag is printed, it is necessary to ensure that the color does not fade or fade. In some places, the printing technology may not be good enough. After they were printed, there was very serious color fading, which is very unfavorable for people's use. Targeted relative cognition and understanding, and better use, can truly guarantee future use. Some products appear to fade and fade during use, which is very unfavorable for people's use of packaging bags.

On the other hand, bag printing should remain clear and glossy. In the printing process of some packaging bag manufacturers, improper ink deployment will lead to unclear patterns, which will easily affect future sales and use. During the whole printing process, it is very important to keep the pattern clear and delicate. Once we ignore this aspect, it will be difficult to play a role in publicity.

When printing the packaging bag, it is necessary to ensure that the pattern is clear and there will be no problem of toning. When we can comprehensively guarantee these two aspects, we will be able to reap better results in the process of use in the future. Some people may not have a good understanding of the relevant situation, so various problems are discovered after the packaging bag is printed, which not only causes a huge waste of materials, but also causes various problems for us.