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Plate curves Plate curves "google Me", there are several articles I have written. E-mail me and I'll send you the tone values for the press and densities for a beautiful uncoated sheet. Dan Remaley (former GATF) [email protected]

Some of the "new" process-less plates may have a 'sharpening' on press. Here's a "HOT" tip - place a measurable patch in the color bar of 3% dot of Y-M-C-K. You now can 1-measure the first spot that will sharpen on the plate and 2-confirm that the plates are correct and 3-if the press is...

Solid Ink Density Solid Ink Density Go to System Brunner AG for more information about measuring print. Felix Brunner says that 80% of color variance is caused by "dots", only 20% by "Solids". Therefore, if we only measure solids we're only checking 20% of the variance, sadly most pressmen...

Gcr Gcr With GCR, the Black becomes the most important color, dot gain is critical, as well as the 'print contrast' number. You could also move the Black to the last print unit. Color variation is noticed in "hue shifts" warm grays, magenta purples. With GCR you only get differences in...

give me a call give me a call Many questions, please give me a call. . . Dan Remaley (former GATF consultant) 412.889.7643

proof uncoated proof uncoated I usually make a proof with an ISO uncoated profile with the densities limited to the uncoated numbers .95Y 1.00C 1.12M 1.25K. Everyone- I have an excellent plate curve for uncoated to closer match a coated press sheet. . . .email me at <[email protected]>...

dot gain dot gain The conversion from RGB determines the 'dot gain' of the C-M-Y-K file. The default in Photoshop is around 20%, therefore a 50% patch should read 70% at press. Certainly you can print sharper (10%) or heavier (24%) but the seps and the Pantone book (screen builds) are made...

Epson makes a new metal plate machine that can also be used as a proofer. Go to Epson's web site or contact a local dealer. Looks interesting. . Dan

I have a very simple way of matching and measuring based on Density and TVI, coated and uncoated. . .call me. Uncoated is .95Y 1.00C 1.12M 1.25K these are dry densities, tonality (TVI) is the same as coated. Dan Remaley 412.889.7643

Please call and we can talk about your problem. . .Dan Remaley (US) + 412.889.7643

>>>>Yes I know, FM more like 28% gain, (with a linear plate) I was speaking of AM screening. >>>> I disagree, midtone gain is a base line, for me when I'm - comparing one press to another, one ink to another, etc. and it's included with the ISO standard tone scale. The default setting in...

I personally like to make the plate linear, because, I like to look at vignettes and 1-2-3% dots to be sure they measure correctly. Sometimes (like with positive plates), the set-up guy, over exposes the background, to keep it clean, reducing the 50% file dot to 44-45% on the plate and the...

Please contact me at [email protected] for help with GCR testing. We can talk on Skypes.

Are you changing the plates because of changes to dot gain values on press? [email protected]

uncoated profile uncoated profile Go to the ECI website and download the ISO coated and ISO uncoated profile. Any questions call. . . Dan Remaley 412.889.7643

dot gain dot gain Many things cause changes in dot gain, water temperature, roller settings, ink charging, grippers, blankets, etc. I suggest making a 3% patch of Y/M/C/K, place it in the color bar and watch for doubling or slurring (major culprit). I usually try to use a high pigment ink...

Dot gain changes Dot gain changes Thought I'd share what Felix Brunner thinks of color control. I am in System Brunner's Camp, he knows more about color printing than anyone alive or dead! He contends that 80% of print problems are dot related - 20% SID. "What do you measure." See Attached...

dot gain dot gain The standard deviation for a sheetfed press is +/- 2% dot gain. With a +/- 4% color can still be ok as long as the gains are balanced, both lighter or heavier. The problem comes when Mag goes up and the cyan the same - or down - grey balance shifts and the color is off...

Right the color bar has no GCR, in fact some printers still run the color bar 'linear' and the work curved! In this case Gordo is correct it has NO reference to the work. But people, being what they are, still do it. The reality is that the whole gray balance issue is predetermined in Photoshop...

measured plates measured plates Are these measured gains at the 50% area or the 70% as Heid./ Man/KBA use? I'd love to talk to the engineers that devised these plates - have they ever heard of Edward Demming, and his demand for quality! Demming taught Toyota that you produce quality and...