How to operate screen printing machine and problem processing in silk screen quality
It is also common in our lives. There are also many problems with the long-term use of screen printers.
1, the solution
Careful analysis of the reasons for the impact of quality,printing for the reasons caused by the problem, as for the quality problems caused by non-scratching operations, such as stretch mesh problems, the best distance problem, silk screen stencil production problems, workpiece surface treatment problems and printing Material selection and so on will affect the quality of silk screen printing.
2, pattern line edge burrs, notches, cams, etc.
The surface of the substrate is not clean and oily; the printing material is too sticky, the dirt on the net mold is not removed, the particles of the printing material are large, the mesh of the high screen printing mesh is not passed; the drying speed of the silk screen is too fast, the screen printing workplace is exhausted; The printing material failed to seal the net in time to produce a netting; the unevenness of the printing was uneven, or large or small; the surface of the substrate was uneven.
3, pattern or line hair
The printing material is too thin, and the printing force is too strong; the printing material is unevenly adjusted (the solvent in the printing material is unevenly dispersed); the solvent or the cleaning agent on the net mold is not dried, or the surface is cleaned when the workpiece is reworked. The agent is not dry or not clean; after the first scratching, the printing net sealing force is too large, so that a small amount of printing material is extruded into the mesh; the speed of the moving (moving) of the printing plate is too large within the effective area of the printing material. , pause or repeat printing, etc.; the fineness of the printed material does not match the selected mesh number.
The above mentioned is just a simple maintenance of a small number of printing, if you want to know more about the maintenance and repair of printing, we will have a dedicated technical staff to answer your knowledge about screen printing, if necessary Please feel free to contact us and we will respond to you as soon as you see the problem.