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Why the numbers sprayed by the printer on the plastic packaging bag are easy to fall off

by:Leadtech Coding     2021-08-20

Why are the numbers on the plastic bag easy to fall off? Generally speaking, to solve the problem that the printed content on the plastic packaging bag is easy to fall off, it can be analyzed from the following aspects:

First, the type of cij printer. The types of inkjet printers are divided into small character inkjet printers, large character inkjet printers, high-resolution inkjet printers, high-resolution cij printers and so on. Generally, the ink adhesion of small character inkjet printers is better than other types of inkjet printers. It is rare that the jet printing effect will fall off.

Secondly, whether the plastic bag is contaminated with oily substances, which will cause the ink to fall off naturally. To be precise, the characters printed by the cij printer did not cause the ink to fall off due to the printing on the surface of the plastic bag. The solution can only ensure that the surface of the plastic bag is very clean.

After getting drunk, look for the reason why the plastic bag material drops ink. If you use a small character cij printer to print, the ink droplets will still fall. Consider the material of the plastic bag. PET, PVC, PE and other materials generally use ordinary ink, and there will be no ink drop. When ink drop occurs, it can be solved by replacing the highly adhesive ink. If the product packaging bag needs to be cooked at a high temperature, the use of ordinary ink will definitely cause the ink to drop. Therefore, in actual applications, the problem of ink dripping must be solved according to the actual packaging bag material and production conditions.


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