UV letterpress printing

  • * We recommend SGS (tack paper), SGP (tack paper), FGS, FEB (G), FEBA, and QJJ.
  • When selecting an ink, ensure that you consult with the ink manufacturer.
  • To avoid miss registration, use a low-heat UV lamp (water-cooled or infrared-reduction type).
  • Although a direct pressure press, semi-rotary press or rotary press can all be used, for solid patterns a semi-rotary press or rotary press is recommended.
  • For intermittent rotary printing presses, pay special attention to registration due to tension fluctuations.
    Perform a test-print to confirm beforehand if necessary.
  • An ink that is softer than ink for coated paper will provide greater ink transferability.
  • If UV irradiation is insufficient, ink adhesiveness may be insufficient immediately after printing. Please confirm beforehand.
  • If the paper surface is cold, condensation may occur, leading to poor ink transferability. To avoid this problem, warm the paper surface beforehand.
  • To avoid miss registration, set the tension at the lowest possible level.
  • For FEB (G), conduct a test in advance to check the suitability of the printing press (driving performance, misregistration).