The main index of characteristic of screenprinting screens
The usual mesh screen printing is silk screen, nylon mesh, polyester screen printing mesh, stainless steel wire mesh. The main index of characteristic of various screen printing screen mesh as below:
1. Tensile strength [g/d (g/diameter)] silk fabrics 3.7- 4.1 g/d, nylon mesh for screen printing 4.5- 5.8 g/d, polyester printing mesh 4.3- 5.5 g/d, stainless steel wire mesh 1.5 g/d.
2. Ratio of wet- and- dry strength (%), silk screen 92 ~ 100%, nylon screen mesh cloth 89-90%, polyester screen mesh 100%, monofilament screens stainless 100%.
3. Knot strength [g/d (g/diameter)], silk mesh screen 2.9 g/d, nylon screen mesh fabric 4.5-5.4 g/d, polyester fabric for screen printing 3. 4-4.4 g/d.
4. Tensile elongation (%), silk screen mesh 8 ~ 22%, nylon screenprint mesh 26 ~ 32%, polyester screenprinting fabric 16 ~ 30%, stainless steel screenprinting screens is 38%.
5. Elongation dry and wet ratio (%), tulle 120 ~ 134%, nylon screen printing mesh fabric 115-122%, polyester mesh screen printing 100%, stainless steel mesh of silk screen 100%.
You forgot plain weave vs twill weave and the Rz value. Don't even get me started on % open area.
thinner threads = more percentage of open area, but lesser strength when stretched
regular mesh = slightly less percentage of open are, but theoretically more strength.
Of course, all this is moot if you use cheap assed Chinese mesh, or poke it with a sharp object, or stretch your screens with staples or chord-in-groove.
Sefar has a few new meshes out that have thinner/stronger thread and more open area. The one i've tried so far is 355 and 380 LFM and it's fucking great.
Originally Posted by
Actually while it makes sense that thinner threads = more open area that isn't always the case.
Lower mesh count, which typically equals thicker threads, is most often a greater % open area.
But I can get a 420 twill with the same open area as a 305 plain at 25% open.