Journal of Printing Science and Technology
Online ISSN : 1882-4935
Print ISSN : 0914-3319
ISSN-L : 0914-3319
Volume 46, Issue 5
Displaying 1-3 of 3 articles from this issue
Special Review
  • Yuichi NAKAMURA
    2009 Volume 46 Issue 5 Pages 216-218
    Published: 2009
    Released on J-STAGE: November 15, 2009
    JOURNAL FREE ACCESS
    New technology for curing system of ultraviolet with LED-UV has been announced in February 2008. The technology is ultraviolet irradiation with LED element and combination sort of inks which cured the ultraviolet. We would like to announce "Hybrid UV" system whose combination of new ultraviolet irradiation technology and inks for LED that has already announced before.
    Download PDF (380K)
  • Hideaki KAWAI, Toshiyuki SEKIYA, Atsushi UEJIMA
    2009 Volume 46 Issue 5 Pages 219-225
    Published: 2009
    Released on J-STAGE: November 15, 2009
    JOURNAL FREE ACCESS
    Since 1990s, we have seen a rapid digitalization in print industry. Digitalization of prepress field began from emergence of DTP, and finished by commonization of CTP.During this period, the market circumstance surrounding print industry has changed.Shorter run of printing has been increasing with diversification of consumer needs by IT, and rising of environmental awareness. While conventional offset printing is suitable for mass-production, digital printing technologies attract huge attention through adapting market circumstance and complement of conventional offset printing technology. We will review the trend and challenge of printing industry⁄digital printing, and introduce our FUJIFILM's solutions in this paper.
    Download PDF (1056K)
Original Paper
  • Ikuo NAITO, Yoshiaki NITTA
    2009 Volume 46 Issue 5 Pages 226-232
    Published: 2009
    Released on J-STAGE: November 15, 2009
    JOURNAL FREE ACCESS
    In the ink trapping using a cast-coated paper with black inks for offset proofing and synthetic paper, we detected many pinholes on printed surface. The numbers of the pinholes (Npinhole) increased according to lapse of time after the trapping during initial 6 hrs. These Npinhole values at 24 hrs decreased with increasing amount of transferred ink (y). The Npinhole value of the printed matter with web offset ink at 24 hrs was independent of the y value. Using poly (ethyleneterephthalate) (PET) film, there are many pinholes on the surface. Clarifing ink transfer mechanism, the pinhole formations were studied by means of y-Npinhole reactions, time-profiles of the Npinhole value, effects of drying temperature, and drying atmosphere and so on.
    Download PDF (784K)
feedback
Top