Gold problems on 106 xl

Discussion in 'Heidelberg Printing Presses' started by CD74 jackie, Oct 9, 2017.

  1. CD74 jackie

    CD74 jackie Member

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    Been running a 106xl for a few months now and only real problem has been with golds. Any tips on how to avoid emulsification and how to achieve strong colour without catch up? Any help much appreciated.
     
  2. Andrei83

    Andrei83 Member

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    Write your email address and I'll send you recommendations yet.
    Do not exceed the dosage of alcohol 10%, watch the hardness of the water, should be medium hardness.
     
  3. rchamness19

    rchamness19 Member

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    You can have your ink supplier fake extra strength by adding color to the gold
     
  4. NotAGooner

    NotAGooner Senior Member

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    You could also double bump it?
     
  5. turbotom1052

    turbotom1052 Senior Member

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    It is my feeling that its very difficult to run any metallic ink up to full strength, for more than about 1000 impressions. The suggestion for a double hit of metallic was a good one if you can spare the extra unit, extra plate, extra washup, and extra time. If its a run of more than 1000 impressions ,I would suggest taking either a half step, or even a full step up in the PMS book. For example.... your customer specs pms 872 gold. You load the fountain with either a 50\50 mix of 872 and 873. Or you could just take a full step up and run 873. The step up will not give you a true 872 hue but it will come pretty close WITHOUT the inking problems associated with running the spec ink. The higher number will be a richer color that you will be able to better control when run down a bit, resulting in much more stable inking. If you decide not to tell anyone about your color swap you can be pretty certain that nobody will notice. I won't tell if you don't tell!!!
     
  6. NotAGooner

    NotAGooner Senior Member

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    Haha, yes I forgot about going a step up, I routinely did that very thing.
     
  7. CD74 jackie

    CD74 jackie Member

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    Thanks very much for your help all good shouts. I found upping the ipa 1% helped too but like you say the more impressions the worst it becomes. Who'd be a printer eh!!
     
  8. aqazi81

    aqazi81 Senior Member

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    And do you run integrated?
     
  9. Alex63

    Alex63 New Member

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    metal ink brings us all the time worries but I think I found the solution on my press XL 106 low UV. I decided to change the ink mark because the one I used to go up a lot in emulsion and I could not handle the stability of the machine.. sorry for my english
     
  10. KAB

    KAB Member

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    MAKE SURE YOUR METALLIC COLOR IS ALWAYS FIRST DOWN AND INCREASE THE VEHICLE IN THE INK BY REDUCING WITH JELL.
     
  11. turbotom1052

    turbotom1052 Senior Member

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    This is bad advice unless the metallic ink sits all by itself on the sheet. If the metallic comes in contact with any of the other colors when reduced and ran in the first position, you will encounter trapping issues. Often it in required to increase the tack of the metallic ink in order to get proper trapping. This tack increase can be done with a generous helping of water repellant varnish or body gum.
     
  12. KAB

    KAB Member

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    When it comes to trap standard its always first down ink on paper equals your trap standard to be measured from. If gold or silver is not down first you will get halo effect, although we have we have run metallics down last under certain circumstances. KAB Hasbro\Milton Bradley
     
  13. alibryan

    alibryan Senior Member

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    I recommend first down as well but it doesn't necessarily matter what order you print a metallic ink, as long as you understand that it's an opaque ink when you determine the print order. Printed first or last is not usually as important as whether or not it's printing over/under, or knocked-out.
     
    Last edited: Feb 2, 2019
  14. jwe

    jwe Member

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    I like to add ink reducer to the ink and a bridge roller on the water form.
     
  15. KAB

    KAB Member

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    Yes metallic ink has challenges
     
  16. KAB

    KAB Member

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    Yes I would generally agree.
     
  17. turbotom1052

    turbotom1052 Senior Member

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    if we were to follow your advice, where the first down ink sets the trapping standard, then think of all the work involved to get all the following inks to trap on top of the "reduced" metallic ink printed first down. I know that I don't want to be the person who has to wear out my wrists and hands mixing reducer into 4 or 5 or 6 different colors that follow your "trap standard!!!" It's tiring, time consuming, requires additional material, and most importantly creates a deviation from the standards that are set down by an ink manufacturer. I ALWAYS strive to print inks directly out of the can whenever possible, and you should too.
     
  18. KAB

    KAB Member

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    You're not understanding me correctly
     

  19. turbotom1052

    turbotom1052 Senior Member

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    is it understanding that im not doing or agreeing?
     

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