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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

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    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.
     
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  2. MikePro

    MikePro Major Contributor

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    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?



    :Welcome::signs101:
     
  3. P Wagner

    P Wagner Very Active Member

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    Caldera supports Color Replacements and the use of Filters, both of which can automate this task.
     
  4. zamajam

    zamajam New Member

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    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

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    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!
    Mike
     
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