Peter, I am just recently getting started with photogravure, direct to plate, myself. From what I have read, you may be testing the wrong inks. It is my understanding that the inks to use are Matte Black, Yellow, Light Black and Cyan, in that order, for descending effectiveness at blocking UV. Some suggest throwing in Magenta as kind of an afterthought as a light ink. I have found it an unnecessary waste of ink. Considering how green I am at this, I have had pretty good results with those four inks (K, Y, LtK, C). If you do more testing, I would be interested to see those numbers. BTW, your graphs didn't come through in my email either. And I can't even respond on the forum itself. I guess Yahoo will get it sorted out eventually. David Kachel ___________________ Artist-Photographer Fine B&W Photographs www.davidkachel.com david@... Gallery: www.reddoorfinephotographs.com director@... PO Box 1893 Alpine, TX 79831 (432) 386-5787
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Re: [QuadtoneRIP] UV transmisison characteristics of Epson K3 inks
2014-03-03 by David Kachel