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If the name Bainbridge insignia cloth isn't familiar, maybe DAC-TAC or FAB-TAC are. The dacron (&/or nylon) fabric films with pressure sensitive adhesives are converted by various companies onto 15" perforated rolls for cutting letters or insignia's to be applied to fabrics. Like a short-run alternative to screen printing.
Bainbridge makes the stuff & sells it in 54" rolls. I have done lots of screenprinting on it because some of the professional windsurfers like it for their sponsor graphics. Their sails are largely made of a clear monofiliment material the regular vinyl adheres very well to, but other parts of the sail require something better such as this product.
Anyway, I have a client that needs 6 prints 4'-5" x 4'-5" in 3 colors. I would need to print half at a time due to the image size. I have a couple of screens that large, but for 3 colors, it is too much screen burning & set-up time for what I could expect the client to want to pay for 6 prints.
Large format digital printing with UV stable inks seems to be the best solution if anyone does this.
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Doug Depending on what the 3 color graphics are, if you can't get a suitable digital print that size, have you considered cutting vinyl mask and spraying the screen inks on?
I use this method quite often as it is much more cost effective than short run screen printing. Either use air airbrush or HPLV gun. It is only a matter of finding the right dilution of the ink with thinners. Not enough and it won't spray. Too much and it eats the mask. Several light coats works best.