Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
1-6 bar. Human equivalent of being able to just kiss the platen, but also fold a 70 duro squeegeein half.I have noticed that the heavier fellas tend to make pretty good manual printers. Not sure if thatmeans anything or I'm just self conscious about my buck and a half.
I believe we are pushing too hard, but if we back off, the ink is not clearing. pierre
let's toss flood bar pressure into this equation. we have to double stroke most of the time to get the ink to clear the screen -white ink that is- . I have tried everything from mesh counts, eom, pressure, inks, bases, new platens, warm platens, swearing, speed, squeegies, angles, garments, off contact, list goes on -we just can't get it to clear right in one pass without really cranking the pressure. I am using the old school twist-n-lock pressure jammies. . .my next thing to play with is the flood pressure.
Contrary to some statements there is no one setting for pressure whether its PSI or old school twist and lock. This will depend on blade profile, durometer, unsupported height, angle of attack, and speed of travel. Then there is mesh count and tension, ink rheology, and off contact. There's probably more interdependant factors but that's enough variables to think about this early in the morning.Seasoned press ops know how to "read the screen" in order to determine all this. Ideally when the stroke is completed you should be able wipe your finger across the image area and have it come off with practically no ink on it. If you are achieving proper shear and insufficient coverage you may wish to go back to the other variables and re-asses your pre-press. The quick bandaid is to double stroke. tp