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Watermark/Invisible Ink. Where can I get it?

Discussion in 'Everything Else InkJet Printer Related' started by Sherbet Helix, Mar 20, 2012.

  1. Mar 21, 2012
    Redbrickman

    Redbrickman Printing Ninja

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    I'm still seeing it and I'm waiting for the splash :D

    [​IMG]
     
  2. Mar 27, 2012
    Greysonphil

    Greysonphil Getting Fingers Dirty

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  3. Mar 28, 2012
    Simon R.

    Simon R. Printing Ninja

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    When I was young, there was something about lemon juice and a lighter, but can't quite remember how it goes... :)
     
  4. Mar 28, 2012
    PeterBJ

    PeterBJ Printer Master Platinum Printer Member

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    As a kid I have also played with invisible ink. Ordinary household vinegar works well as an invisible ink. You develop the secret document by ironing it with an iron set to high temperature or "cotton" setting. The acid in the vinegar or lemon juice changes the paper, so it is more easily scorched, so your developed secret writing will appear brown.

    If you have a printer using cartridges with built in printheads, you could try opening the cartridge and washing the ink out of the sponge and refill the cartridge with vinegar. But I doubt the cartridge will work. See this: http://www.ehow.com/how_4464754_make-invisible-ink-printer-cartridges.html . You could also use fluorescent ink: http://www.uvstuff.com/en/5-invisible-ink-for-inkjet-printers

    Don't try this with a printer using separate ink tanks. The vinegar might ruin your expensive printhead.

    True watermarks are made during paper manufacture. I don't think they can be printed, no matter what kind of ink you use.
     
  5. Mar 28, 2012
    The Hat

    The Hat Printer VIP Moderator

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    When youre using invisible inks in your printer,
    How would you know if you got a clogged print head..:idunno
     
  6. Mar 30, 2012
    nerdful1

    nerdful1 Getting Fingers Dirty

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    I dropped Spot remover on my dog, and he disappeared...
     
  7. Mar 30, 2012
    The Hat

    The Hat Printer VIP Moderator

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    I wish I could have seen that.. :lol:
     
  8. Apr 5, 2012
    Redbrickman

    Redbrickman Printing Ninja

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    Unfortunately you can't :D
     
  9. Jul 8, 2013
    SpecialInks

    SpecialInks Newbie to Printing

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    You can find this ink on Securetechink.com
    here is a video demonstration youtube.com/watch?v=91fVqI_SrCg
    Its what you are looking for, can only be seen in UV light.
     

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