What is High speed UV LED ink and how does it work?

Discussion in 'UV' started by dplleduv, May 15, 2018 at 7:49 AM.

  1. dplleduv

    dplleduv New Member

    Joined:
    Mar 2017
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    Location:
    Denmark
    High-speed UV LED Ink is the most important fact affect your printing quality and efficiency. Well-formulated inks ensure continued print quality, system uptime reliability, and high productivity without user intervention.

    What is UV LED ink?
    Compared with traditional UV ink, UV LED inks only active for typical wavelength. Because of special consideration of photoinitiators and pigments
    in the ink formulation, which only matches the spectral output of
    the LED lamps. These special photoinitiators absorb at a higher
    wavelength as opposed to traditional photoinitiators and are
    typically more expensive. The spectral output of a LED lamp to
    cure UV LED inks is very narrow, 365 – 405 nm, as compared to
    a UV mercury system which operates from 200 – 700 nm range.

    What is UV LED Curing?
    Because of the limited spectral wavelength, UV LED primarily
    operates in the UV-A zone and considered to be ‘safe’ because
    it is closest to visible light. However, prolonged exposure to
    this energy can be dangerous. The UV-B and much of the
    UV-C spectrums of light are primarily used for germicidal and
    sterilization purposes. The light produced at these wavelengths are
    not only harmful to microorganisms but are also dangerous to
    humans and other forms of life that may come in contact with it.
    These lamps should always be shielded and never viewable to
    the naked eye, even though it may appear that little or no light is
    emanating from the device. Exposure to these wavelengths may
    cause skin cancer and temporary or permanent vision loss or
    impairment.

    How does high-speed UV LED ink work?
    Compared with traditional UV lamp, UV LED lamp only active on typical wavelength. However, it doesn’t mean UV LED ink need less UV energy for curing. You can see from the following picture of our UV LED Ink testing report, good DOSIS energy will help for improving curing speed and quality. Therefore, we have confidence that even use the same UV LED ink, DPL high power UV LED curing system can cure faster and better.

    [​IMG]
    if you need more UV LED ink test report, welcome to contact with us at dpl@dpl.dk
     
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