I apparently suck at this. I thought that using a vac bed and a semi-auto would make this a cake walk but here's the deal:
I use 3 point reg- dymo labels. It feels good and solid to me.
I use an old Model T as andymac calls 'em, a Cameo 22x30 or something. It's old and banged up but works.
Today I had to print some plastisol transfers for trucker caps. Pretty straight ahead deal- basic orange going onto dark caps. I layed down some 174c through a 110 first. Looked good, but when I hit it a second time after tack curing in the dryer it was always off. I load carefully and keep my index fingers on the paper until the vac kicks on and I pull them away like hot hands. I use good transfer paper, I think it's the best you can get for dimensional stability but maybe I'm wrong there. I mask for extra vac suction to hold down the slightly curled sheets. I pre run all the sheets through the dryer and avoid stoppage or letting the sheet cool off significantly. Basically I think I follow all the rules on this. This was a short run of about (50) 12.5x12.5 cold peel sheets.
To better gauge how far off things were, I did a color change and loaded white into the exact same screen and printed. It was pretty damn far off too, just like the second hit of orange. This is same everything- screen squeegee, blade, speed -so the parameters there are static.
I ran 300 pcs with TW inks on 12.5x19 70lb text French Speckletone last week and it too walked around on the reg. The art was forgiving with it though and, for some reason, everyone likes to see that so they "know it was screen printed" which still seems weird to me as a printer that people would like off-reg prints. Anywho...
Leads me to conclude:
- I'm either throwing the paper on there incorrectly
- The press can't hold reg.
- Both of the above.
- I definitely need some advice.
I can't even fathom printing 4cp or something at this point. Frustrating b/c we do fine as textile printers with tight registration. Thanks for reading and thanks in advance for any help.