U of S | Mailing List Archive | alt-photo-process-l | Re: Photopolymer Photo Gravure Press Questions

Re: Photopolymer Photo Gravure Press Questions

I don't doubt your experience.
Its interesting in looking through the various catalogs for presses that only a few of the companies even make presses with rollers in the 10" range. And then, you have to buy a $11000 press with a really hugh bed. Most of the companies offer presses with 6-8 inch rollers as the max size.

On Jul 16, 2008, at 2:45 PM, Jon Lybrook wrote:

Hi Robert,

Yes, the angle of the curve of the upper roller directly affects the overall pressure. You can get much higher pressure from an upper drum with a diameter of 10" than one of 4", and high, even pressure is what you want for printing photogravure quality from polymer plates. I'm not a physicist, but I know I won't print photogravure on a press with a roller less than 10" if I can help it.

Size of the bed is in direct proportion to the size of the plate you want to print. You should be able to print right to the edge, assuming your pressure is tight and even.

Best wishes,

Robert Newcomb wrote:
In regards to printing Photopolymer Photo Gravure, What does the size (diameter) of the upper roller have to do with a press's ability to print this plate? Is it the amount of pressure that it can apply to the plate?
Also, is there a rule of thumb about how wide a press bed should be in proportion to the size work one wants to print?
thank you,
Robert Newcomb
Jon Lybrook
Intaglio Editions