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Achieve Rich Black through RIP

Discussion in 'RIP Software & Color Management' started by zamajam, Dec 3, 2013.

  1. zamajam

    zamajam New Member

    Dec 3, 2013
    Our clients send in work all the time that has vector blacks that are 0/0/0/100. Currently we have to open every file and change the blacks to 40/40/40/100 (this is the color combination that we found works best on most of our printers). I was wondering if there was a way to set our RIP station to automatically replace any references of 0/0/0/100 to 40/40/40/100. We are currently using Caldera GrandRip+ v9.2 build 131018. Any help will be much appreciated.
  2. MikePro

    MikePro Major Contributor

    Feb 3, 2010
    Racine, WI
    caldera doesn't have a color replacement tool? In onyx, I've always been able to eyedropper colors in the rip and manually enter new cmyk values, if I knew it wouldn't also affect another element in my file such as gradients & images.

    I've never used caldera, but appears your rip version supports spot color replacement, even in RGB files.
    It's a pain, but its worth taking the time to open the file and inspect for other issues anyways... and why not set a spot color while you're at it?

  3. P Wagner

    P Wagner Very Active Member

    Aug 16, 2006
    San Diego
    Caldera supports Color Replacements and the use of Filters, both of which can automate this task.
  4. zamajam

    zamajam New Member

    Dec 3, 2013
    Thank you both for the quick responses.

    @MikePro - Yes, Caldera does have a Spot Color replacement tool. Currently we are using that to make the change. We have to manually go in to each job, select the 0/0/0/100 and replace it with 40/40/40/100. It does work, but it is time consuming to do that to 50+ files a day. I was looking for a way to have the RIP change any reference of 0/0/0/100 to 40/40/40/100 automatically. (Yes - I am pretty lazy :smile:)

    @Castek Resources - I am kind of new to Caldera so I wasn't aware they had filters I could set. Where could I do that?
  5. MikeD

    MikeD Active Member

    Oct 25, 2011
    Some RIPs allow you to change the rendering intent to "BCP;" Black Point Compensation. My understanding of this feature is that it draws more ink from the black cartridge for black areas of your print.

    Another technique involves CMYK values. 100%K is not always the best option. C75 M68 Y67 K90 works well for most of our "white" vinyl substrates, but those #'s may need to be changed based on the "white" material you are using. PVC is hard- plasticizers make it soft and pliable. Some plasticizers used in vinyl production can give a cool blue color cast while others may give a warm red tint.

    Ink limits can also help, but as that can also cause problems with the vinyl itself and even the adhesive in extreme cases, I only increase the ink-limit as a last resort.
    Good Luck!
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