Why are the numbers sprayed on plastic packaging bags by the inkjet printer easy to drop?We can generally analyze from the following aspects:
1. Type of inkjet printer.The types of inkjet printers are divided into small character inkjet printers, large character inkjet printers, high resolution inkjet printers and high resolution inkjet printers. Generally, the ink adhesion of small character inkjet printers is better than that of other types of inkjet printers, and the inkjet printing effect rarely drops.
2. Whether plastic bags are contaminated with oil.Oil substances can make the ink fall off naturally. To be precise, the characters printed by the printer are not printed on the surface of plastic bags at all. The only solution is to improve the cleanliness of the surface of plastic bags.
3. From the plastic packaging bag material to consider looking for the reason of ink.If you use a small character inkjet printer to print, ink will still fall off, and the material of the plastic packaging bag will be considered.PET, PVC, PE and other materials are generally made of ordinary ink, which will not drop ink.If ink drops occur again, high adhesion ink can be replaced.If the product packaging bag needs to be cooked at high temperature, the ink will definitely drop when using ordinary ink, so the ink drop problem should be solved according to the packaging bag material and production conditions.