ワイドフォーマットUVインクジェットプリンター

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  • 佐藤 武彦
    富士フイルム (株) アドバンストマーキング研究所

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  • Wide Format UV Inkjet Printer

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Wide format inkjet printers are categorized as printers with a printing width of more than 22 in. Here, we present recent developments in UV inkjet technology. The first ever "flat bed" UV inkjet printer was the Inca Eagle44, which was launched in 2001. Over the past several years, the image quality and productivity have increased owing to various R&D efforts with regard to the printing head, ink materials and formulation, UV-LED devices, and novel lamp work. Binary printing heads have been changed to the multi-drop type, which gives a rich and smooth color tone using a light color ink set. First-generation UV inks included multi-functional acrylate monomers to prioritize curing speed rather than the film properties. Combinations of multi-functional and mono-functional monomers with alternatives are being intensively studied to optimize the speed and film properties. A recent important change has been the introduction of UV-LED lamps to UV ink jet printers. The lamps save power, have a long life, can be quickly switched, are lightweight and compact, and produce low amounts of heat. The advantages of UV-LED were realized in our development of the Acuity LED 1600 printer.

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