Search results

  1. danremaley

    Denistometer V/S Spectrophotometer

    Felix Brunner says that color shifts are caused 80% of the time, because of dot gain, only 20% because of solid ink density. So what do we measure? SID . . .go figure! The absolute best color is achieved when the solids are near correct and the sheet is in gray balance, even if it's a little...
  2. danremaley

    Denistometer V/S Spectrophotometer

    Here's my teaching method- use a densitometer set with "all" filter readings. The "V" number is the "visual" density reading, generally around .60. The 3-filter readings show Y-M-C representing each filter reading. If the "V" number is high - then you need to lower the higher Y-M-C numbers, if...
  3. danremaley

    Denistometer V/S Spectrophotometer

    densitometer densitometer Here's my teaching method- use a densitometer set with "all" filter readings. The "V" number is the "visual" density reading, generally around .60. The 3-filter readings show Y-M-C representing each filter reading. If the "V" number is high - then you need to lower...
  4. danremaley

    Process control without colour density bars

    no color bars no color bars I would print a test form that I could measure, collect the "data" Density, dot gain, gray balance, etc. Make adjustments to the plate curves to print "standard" numbers. Now if you get 'close' on density the color will be more accurate. It would be nice if you...
  5. danremaley

    Pantone Color Manager (rant)

    Just to add, the Pantone book (PMS to Process) is printed to the SWOP specs, or at least that's what was printed in their old books. Density 1.00 Yelo Mag 1.40 Cyan 1.30 K1.70. problem is the dot gain was 20%Mag and 24%Cyan (the spec was 20%Mag/20%Cyan) so that's a 4% "cast" towards Cyan. Plus...
  6. danremaley

    Do Printers Believe in Continuous Improvement?

    I guess I don't understand your question? What do you mean "direct relationship"? If you measure print contrast solid vs 75% and you increase density, you change print contrast (the screen tint) so maybe there's some "direct relationship" there? NO?
  7. danremaley

    Do Printers Believe in Continuous Improvement?

    I have read your "unbalanced" guide- many items simply untrue. Like your quote "as far as I can determine, there has never been a formal, objective, study of the relationship of grey balance targets measured in press sheet color bars and how they relate to the live image content of the press...
  8. danremaley

    Do Printers Believe in Continuous Improvement?

    Let's see if I can explain- equal amounts of R-G-B equal gray, so the measurement of Cyan(-R filter) Magenta(-G filter) Yelo (-B filter) in equal density value, (i.e. Y.58 M.58 C.58) equals gray. Color is made from both the density and size of the dot, since the pressman can't easily change the...
  9. danremaley

    Do Printers Believe in Continuous Improvement?

    Hi Erik, we would increase or decrease density of Y-M-C to create a perfect gray from 50C/40M/40Y (the patch we read). Of course this is after the plate curves were made under a stable condition. see System Brunner AG for more information. Dan Remaley 412.889.7643
  10. danremaley

    Do Printers Believe in Continuous Improvement?

    Simply not true. . .there's nothing WRONG. . dot gains change all day long and the relationship between Mag/Cyan gains change the gray balance and therefore color. The "secret" to color printing is keeping the dot gain relationship constant. I have a great printed reference that shows this...
  11. danremaley

    Do Printers Believe in Continuous Improvement?

    Felix Brunner would take exception to your claims. He knows more about printing than you, me or anyone. . alive or dead! He controls color by measuring midtone dot gain and adjusting the density accordingly but the MEASUREMENT is gray balance. Don't be foolish follow the professionals! Dan...
  12. danremaley

    GRACoL as opposed to SWOP colour spaces

    For more than 50 years color seps. were made to SWOP standards, (litho had no standards) so the publication industry attempted to get the web printers to proof and print to a standard. Photoshop's default is at, or near, this same 20% midtone gain. In my opinion the best numbers to print to are...
  13. danremaley

    Density standard

    Also Note that Status-T (INCLUDES PAPER) - MANY OF THE GRETAG INSTRUMENT'S SUBTRACT PAPER FROM THEIR READINGS. Dan Remaley
  14. danremaley

    Harmony curves in Prinergy

    Hi Angie, I feel your 'pain' with the G-7 stuff. I was at GATF when Don H. developed it. It requires you to run more Magenta (not a good thing) and more Cyan to compensate for the "Magenta cast". I recommend printing lower densities 1.30 Cyan 1.40 Magenta, you'll be a little off the "Delta...
  15. danremaley

    ink/water balance

    Call GATF, ask for Dillon Mooney. GATF had a very small color bar element that had diagonal lines with a solid area behind it, you could make it digitally. When the lines expanded (too much ink) or the solid "snowflaked" (too much water) - this is a visual inspection. American Priinting &...
  16. danremaley

    Do Printers Believe in Continuous Improvement?

    I can tell you from being a consultant for GATF a number of years, that most printing companies have no budget for training. I was a process control consultant and found less than 5% of the printers have a process control system in place. Other issues are that they measure the wrong data at...
  17. danremaley

    What happens after 5S

    I would go to the next step with TPM (Total Production Maintenance). It's a 3-legged stool with focus on maintenance, calibration and process control. Management could then instill TQM (Total Quality Management), based on Edward Demming's teachings - i'll be your "external champion". Dan...
  18. danremaley

    Need help with internal checklists

    E-mail me and I'll send you an equipment TPM listing and a process control worksheet Dan Remaley, former GATF
  19. danremaley

    Create curve in Rampage

    I have read a lot of posts regarding linear or non-linear plates. Here's what my 40+ years of experience has taught me. Linearize the plate FIRST, no, you don't have to, BUT, if you do, then #1-we are sure that the plate is printing a 1-2-3-4% dot and #2-we "know" what a 1-2-3-4% dot area should...
  20. danremaley

    Characteristic Curve

    plate curves plate curves Please email me and I can give you the "wanted" numbers for an uncoated and coated press sheet. You will need to run a linear plate at correct density and measure the dot area of the tone scale. The RIP will have a "measured" file an a "wanted" file, the RIP...

PressWise

A 30-day Fix for Managed Chaos

As any print professional knows, printing can be managed chaos. Software that solves multiple problems and provides measurable and monetizable value has a direct impact on the bottom-line.

“We reduced order entry costs by about 40%.” Significant savings in a shop that turns about 500 jobs a month.


Learn how…….

 
Back
Top