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Printing on static cling problems

Discussion in 'Digital Printing' started by depps74, Nov 28, 2018.

  1. depps74

    depps74 Guest

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    I'm trying to print on static cling. The brand of material is Digijet. I have a HP latex 315. It's giving me weird printing results. I ran a head cleaning and calibration. but it did not improve anything. I'm attaching pictures of the problem here. I suspect I need a better profile. The Digijet profile I got is named GF 207. Any generic profiles or other ideas for this problem....?


    IMG_3278.JPG IMG_3279.JPG IMG_3279.JPG
     

    Attached Files:

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  2. WhiskeyDreamer

    WhiskeyDreamer Professional Snow Ninja

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    I'm not familiar with inkjet printing, but this looks like the ink is not bonding with the static cling. Is the static compatible with the type of ink you're using? Does the ink print fine on other materials?
     
  3. Christian @ 2CT Media

    Christian @ 2CT Media Major Contributor

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    how old is the roll? Static Cling has a very short shelf life typically.
     
    • Agree Agree x 1
  4. unclebun

    unclebun Very Active Member

    Try cleaning a piece of the vinyl with 91% isopropyl alcohol and test print it. If it prints better, the problem may be the plasticizer has migrated to the surface.
     
    • Agree Agree x 2
  5. signman315

    signman315 Signmaker

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    Looks like the latex printer heat settings aren't hot enough...I would get those same results when my heat settings weren't hot enough. If you can't go hotter then you have to slow it down. There's not enough time/heat to allow the ink to dry into place before it goes into curing phase. I'm used to using the old L28500 which didn't have the optimizer ink, but instead had two heat zones (drying and curing). They've since eliminated the drying zone and replaced it with optimizer ink. So I guess it could also be not enough optimizer in your profile but you would need to check with someone other than myself on that one. Your profile could have ink limits that are too high for that media, you should be able to use the same profile for SAV as static cling if you get your heat/speed/optimizer settings right. The bottom line is that the ink isn't drying fast enough and is experiencing a huge dot gain before it cures. When you see those zig-zag lines it's a tell tale drying/curing issue on the HP latex machines. Plasticizer could also be an issue as Unclebun mentioned but I personally have only had that issue with banner not static cling. I'm using solvex brand static cling. Hope it helps!
     
  6. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Static cling is notoriously rough to work with but that is really bad. I would think it has to be either not compatible with the ink you are using, defective or as stated above, really old.
     
  7. depps74

    depps74 Guest

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    It's about 6 months old. I printed on it when we first got it and it printed great. That would explain it though. Will the alcohol cure the age problem?
     
  8. depps74

    depps74 Guest

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    It's about 6 months old. I printed on it when we first got it and it printed great. That would explain it though. Will the alcohol cure the age problem?
    It's about 6 months old. I printed on it when we first got it and it printed great. That would explain it though. Will the alcohol cure the age problem?
     
  9. petepaz

    petepaz Major Contributor

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    static cling can be a pain but 6 months old should not be bad. i am not familiar with latex printers but with our solvent printers we sometimes have to use the high quality print mode to get a good print. we are printing with roland solvent printers and i will use a clear vinyl profile on high quality that usually give us a good print
     
    • Agree Agree x 2
  10. signman315

    signman315 Signmaker

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    I agree, 6 months shouldn't be a plasticizer issue...although with that said there are some really poor quality materials out there so who knows. I've seen all kinds of plasticizer problems on banner materials but never static cling. I use Solvex and have had rolls older than a year not give me any trouble when printing with a Mimaki and/or HP latex. Those zig zag lines in the OP photo are very typical indicators of curing issues on an HP latex. It's funny because the first time I saw the zig zags on the latex machines I interpreted as too high of heat...it almost looked like the ink was drying too fast and had no dot gain, but I was completely wrong it's too low heat (aka too fast speed) and the ink is settling into the valleys of the surface of the substrate.
     
  11. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Just keep in mind that OP may have had this roll for 6 months but who knows how long the dealer had it on the shelf.
     
    • Agree Agree x 1
  12. Dan360

    Dan360 Member

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    I only ever get the zig zag lines from the rollers on old or really cheap stuff (plasticizers). The rest of it however looks like incompatibility issue. Have you tried to do an optimizer test to see if increasing or decreasing the optimizer makes any difference?

    Typically that blotchiness is indicating that the ink doesn't like the media and will tend to pool together into those blobs and leaving empty spaces between them. Optimizer is supposed to help with that and I have had issues where I had to adjust the optimizer level to get rid of the blotches. However my cases were nowhere near that bad. If optimizer or the amount of ink don't help with that then I would say the media is bad.

    Does the ink appear to lay smoothly before it reaches the heat? Or does that only happen after it passes through the heat.

    To me it looks like the media is past shelf life. I've had banner we only had for 3-4 months that caused something similar, also printed just fine when we first got it.
     
  13. signman315

    signman315 Signmaker

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    Good point, I've had rolls of laminate delivered to me that are so old that the backing is yellowed and it won't release from the liner without ripping!
     
    • Like Like x 1
  14. DMcClure

    DMcClure New Member

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    Make sure the material is latex compatible. The next step would be check your heat settings. You might want to check with the manufacturer for profiles created for that substrate. I would recommend General Formulations. I've used on a HP Latex and looks great.
     
  15. Superior_Adam

    Superior_Adam Member

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    I have a HP 560 and can create my own profiles and set the speed and heat temps manually. Will your machine allow you to not use a provided profile and make your own. If you can I would do that, I have created my own profiles for every media that we use. When we first got the machine I tried the exact supplied profiles and was not getting good results on anything until I manually set me own.
     
  16. AGCharlotte

    AGCharlotte Member

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    odd... I've had the same roll of Briteline cling for well over a year and I've had no issues when I drag it out for onesie twosies.
     
  17. burgmurk

    burgmurk Member

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    are you sure the film is latex compatible? last time i looked there weren't any available, BUT that was 5 or so years ago...
     
  18. Bly

    Bly Very Active Member

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    Plasticiser migration.
    Wipe it down with iso or get a new roll.
     
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