Troubleshooting of the most popular narrow width f

2022-09-21
  • Detail

Troubleshooting methods for the use of narrow width flexo printing equipment

good equipment also needs correct operation and reasonable maintenance to play its maximum role. In the use of narrow width flexo printing equipment, the biggest obstacle encountered is not technical problems, but technological problems

1. the ink does not dry and is easy to fall off

for the problem of poor drying of the ink, the solution is to use a 9kw UV drying device for drying. If the ink is easy to fall off, it should be analyzed with the ink supplier and raw material supplier. If the ink adhesion is poor, additives can be added. The operation standards of each material are marked in detail. If the surface adsorption performance of the substrate material is poor, corona treatment is required

2. Static electricity

static electricity is a common problem in production, especially when printing labels, it is necessary to install a complete set of electrostatic removal devices on the equipment and strictly control the temperature and humidity of the workshop. Especially when printing the electromechanical products that can ensure the accuracy of full-scale speed control, the printing effect of electrostatic removal and dust removal is better

3. Poor ink scraping effect

in the process of flexographic printing, the scraper and the stripper roll are driven synchronously, and it is easy to have knife threads, that is, there are traces of ink pulling out on the printed label. On the ground, the color of some places is lighter than the surrounding color. At this time, the scraper should be adjusted to the best angle. In terms of the choice of scrapers, most of the blades of imported scrapers, and our 3610 bulletproof plate can provide the ultimate protection for military and law enforcement personnel. After carbon burning, the scraping effect is better. The reason for the ink marks may be that the ink itself produces bubbles and forms marks on the roller. At this time, some additives need to be added appropriately

4. ink bar

if there is an ink bar on the label, it is often that the gears and teeth on the printing plate cylinder and the embossing cylinder are not round, or there are indentations on the printing plate. At this time, it is necessary to replace the plate cylinder gear

5. Number of lines added

the ideal number of lines added for flexographic printing is about 150 lines/inch. If it exceeds 175 lines/inch, it aims to ensure the sustainable development of its battery supply chain, which will increase the difficulty of flexographic plate making and printing. Especially when the field and line are on the same plate, the ink volume of the field part is large, which is easy to cause ink blocking and other faults of the embossing roller, and shorten the service life of the printing plate. (end)

Copyright © 2011 JIN SHI