STAINLESS STEEL MESH SCREEN PRINTING SCREENS
Highly accurate registration, precision ink deposit control and high abrasion resistance top the list of benefits prompting printers to choose stainless steel wire mesh when selecting a screen printing screen. The stainless steel mesh that Haver’s screen printing screens are made of is known for its excellent dimensional stability and the narrow tolerance of its overall fabric thickness, which provides uniform and accurate aperture widths. Haver and Boecker’s screen printing screen technology and the nature of stainless steel mesh itself make these benefits possible. For example, stainless steel’s strength allows thinner wire diameters to be used.
Stainless Steel Wire Cloth
Unlike synthetic screen printing screen fabrics, Haver screen printing mesh will not absorb moisture and is unaffected by temperature. It virtually will not shrink, stretch or sag. In addition, our screen printing mesh is dimensionally stable yet elastic enough so highly-tensioned, drum-tight screen printing screens can be stretched and printed with a minimum off-contact distance. This capability ensures the most accurate and consistent screen printing results.
Compared to standard mesh, stainless steel screen printing screen specifications are woven from wires whose alloys have high tensile strength and yield stress properties. This output is due to complex annealing processes and a specific alloy composition.
Optimized stretching performance guarantees highly accurate registration and accommodates low off-contact printing, leading to high reproducibility. The high tensile strength of the screen printing screens’ mesh results in longer service life and maximum printing speeds. The final stretching stabilizes very quickly during the stretching process. The tension loss is minimized during the screen printing process.
Calendering CT Foil
Our calendering process uses two steel rollers to reduce the screen printing mesh to a predetermined thickness without altering the wire diameter and mesh openings of the screen printing screen. The final thickness is accurate to within +-3 microns (0.12 mil.).
Calendering removes air pockets present in all as-woven screen printing mesh, which forces the wire knuckles into their final, stabilized positions. As a result, screen printers can acquire stabilized screen printing screens very quickly. There is, essentially, no mesh elongation and much less need for re-tensioning.
Within the faster stabilization CT Foil delivers, screen printers can expect their production speeds to increase substantially. They will also maximize their registration capabilities due to CT Foil’s increased dimensional stability. Elongation on press is virtually eliminated.
Our calendering process gives the screen printing mesh a more uniform and tighter overall fabric thickness tolerance. Therefore it minimizes the ink deposit variance on screen printing screens from print to print and run to run. In addition, the ink deposit will be uniform throughout any given print. Screen printers can also expect reduced squeegee wear of their screen printing screens because the calendered wire cloth has a smoother surface.
“3D” Stainless Steel Mesh
3D screen printing mesh is manufactured with the same mesh openings and wire diameter as conventional wire cloths but by means of a different process. 3D screen printing mesh, therefore, achieves a higher theoretical ink volume for screen printing screens, which means a noticeable gain in opacity and brilliance.
HISTORY OF WIRE WEAVING STAINLESS STEEL MESH FOR SCREEN PRINTING
The ability to expertly weave stainless steel mesh screens for screen printing’s closest tolerance requires longstanding experience. Founded in 1887, Haver & Boecker has more than a century of experience in weaving screen print frames as well as a century-plus history of intensive screen printing research and development. As early as 1902, H&B was already weaving stainless steel wire mesh screens in mesh counts as fine as 250. That groundbreaking work led, in the 1950’s, to the invention of a process that revolutionized stainless steel mesh screens. Known as calendering of wire screen printing mesh, this novel process provided unprecedented ink deposit control. Today, expanding on that innovation, Haver & Boecker offers a wide range of calendered stainless steel wire mesh.
Throughout its history, Haver & Boecker’s manufacturing process has consistently surpassed international quality standards (ISO 9000-9004 and 9044-9045). With input from screen printers around the world, our research team has developed measuring and test procedures to perfect each phase of screen printing production. Our tight tolerances-from the selection of the stainless steel wire mesh to the final inspection of each roll we deliver-guarantee reliability of the screen print frames. Backed by this tradition, H&B screen printing customers can count on the integrity of the stainless steel mesh’s wire diameter, aperture width, and thickness.
Other Applications for Haver Wire Screen Printing Mesh
The combination of these benefits makes Haver wire screen printing mesh perfect for screen print applications where registration, controlled ink deposits, and color uniformity are critical. And for the most demanding screen print applications and the finest detail, our Calendering CT Foil Mesh affords unparalleled screen print frame results.
Ideal applications include:
- Printed Circuit Boards
- Solar cell
- Membrane Switch
- Glass bottles and hollow glassware
- Architectural & Flat Glass
- Electro Luminescent
- Thermo Plastic
- Solder mask
- Thick film technology
- Key pads
- Scales/Dash boards
- Liquid crystal displays
- Ceramics including wall tiles