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SGIA

Specialty Graphic Imaging Association

Digital Printing and Imaging

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  1. Inkjet Head Technology

    The technology behind inkjet print heads explained. Ink jet heads are the single most important part of the printing system in digital printing. Designed to accurately dispense a wide range of fluid types in micro-amounts to a wide array of substrates. In ...

  2. Piezo Drop on Demand

    With piezo DOD, a piezoelectric crystal undergoes distortion when an electric field is applied. This distortion creates a pressure pulse in the ink chamber within the print head, which in turn, causes an ink droplet to be ejected from the nozzle onto the ...

  3. Thermal and Piezo Inkjet DOD

    Drop on demand (DOD) is a broad classification of inkjet printing technology where drops are ejected from the print head only when required. The drops are formed by the creation of a pressure pulse within the print head. The particular method used to gene ...

  4. Thermal Inkjet-Drop Formation Technology

    The basic premise of thermal inkjet is phase change of a liquid. The ink is boiled by an electrically heated miniature pad, creating a bubble, which displaces ink in the nozzle chamber, forcing out droplets at the heads operating frequency in Khz. (Kilo h ...

  5. Digital Textile Primer

    The low-down on printing digital textiles This short guide covers the essential basics for printing textile materials using wide-format inkjet technologies. This lucrative medium is used for many applications, including soft-signage, apparel, interior env ...

  6. Ink Chemistries

    There are a wide variety of ink chemistries used to print textile materials. The fiber content of the material will dictate which ink can be used. Some inks work on a variety of fiber types while others only work on specific fiber types.  In general terms ...

  7. Pigment Ink for Textiles

    Pigments are ground into extremely fine powders and suspended in a liquid carrier in order to be used in an inkjet printer. Binders in the liquid carrier facilitate in bonding the pigments to the fibers composition. These inks tend to produce less vibrant ...

  8. Acid Dyes

    Acid dyes are best used to print on wool, angora, cashmere, silk and polyamides. Nylons are also printed using this type of dye. The fibers in these materials have positively charged ions that are naturally attracted to the negatively charged ions within ...

  9. Dispersed Dyes

    Dispersed dyes are specifically used for fibers such as polyester, acetate rayon, poly Lycra and acrylics. The dyes have the ability to form a solid solution with the fiber or dissolve within the fiber and become part of it. Dispersed dyes are typically d ...

  10. MEMS Head Technology

    MEMS Defined Micro-Electro Mechanical Systems (MEMS) is the technology of the very small, and merges at the nanoscale into “Nano-Electro Mechanical Systems” (NEMS) and nanotechnology. MEMS generally range in size from a micrometer (a millionth of a meter) ...

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