Studying on the water pick-up characteristics of UV curable offset ink and the fountain solution without IPA
Main Article Content
Abstract
In UV curable offset printing, ink-water balance is difficult to control, especially in using fountain solution with IPA. The studying on fountain solution without IPA is an essential problem to meet the requirements of the friendly working environment and the UV curable offset technology. In this paper, water pick-up characteristics of the different color UV curable offset inks were determined using the Duke Emulsification Tester. The influence of BCS concentration and process color UV curable offset inks on the water pick-up characteristics were tested using Analysis of variance (ANOVA). Moreover, the obtained fountain solution is compared with the commercial fountain solution in the emulsification capacity. Results show that the fountain solution of BCS 15 % concentration forms the stable emulsification system with all process color UV curable offset inks. The differences of BCS concentrations and color UV curable offset inks have different water pick-up characteristics (p < 0,05). The water pick-up characteristics of three color inks as C, M, and Y with the obtained fountain solution of BCS 15 % concentration are around 25 %, meanwhile, the water pick-up characteristic of Black (K) ink is approximately 20 % after half measuring time. Finally, the obtained solution of BCS 15 % concentration is equivalent to the commercial fountain solution (COMBIFIX-XL) in the emulsification capacity of the inks.
Keywords
UV offset, fountain solution free IPA, BCS, water pick-up, ANOVA
Article Details
References
[1] Deshpande S. S., Fountain solution in lithographic offset printing, Journal of Engineering Research and Studies, Vol. 2, No. 2, pp. 82-88, Jun. 01, 2011.
[2] Technical Staff, The function of fountain solution in Lithography, Fuji Hunt Photographic Chemicals Inc., Florida, USA, 2003. Avaiable: https://asset.fujifilm.com/master/americas/files/2020-03/6e5fbe31a9a2664fef13625b33692956/FunctionFS.pdf
[3] Carina Sötebier, UV ink: Properly cured, European Coating Journal, Vol. 06, pp. 50-56, Jun. 01, 2019.
[4] Stan M., Paul S., Mikhail L., Jean D.-T., Lithographic energy curable inks, WO2003014239A1, Aug. 07, 2001.
[5] Edward S., Gordon K., Subhankar C., Bhalendra J. P., Low VOC cationic curable lithographic printing inks, US patent 2002/0040073 A1, Apr. 04, 2002.
[6] Leach R. H., Pierce R. J., Hickman E. P., Mackenzie M. J., Smith H. G., Ultra-violet and electron-beam curing systems, The Printing Ink Manual, 5th ed., Dordrecht, The Netherlands, Springer, 2007, ch. 11, pp. 636-677.
[7] Hartmann. Fountain solution: Fundamentals of offset dampening, SunChemical, New Jersey, USA, 2010.
[8] Krishnan R., Jones J., Newton J., Henderson D. C., Fountain solutions for offset lithographic printing inks, US patent 20120192735, Aug. 02, 2012.
[9] Tag C., Pykonen M., Rosenholm J. B., Backfolk K., Wettability of model fountain solutions: The influence on topo-chemical and -physical properties of offset paper, Journal of Colloid and Interface Science, Vol. 330, pp. 428-436, Feb. 15, 2009.
[10] Ciolacu F., Bobu E., Paper interaction with fountain solution during multi-color offset printing, Dept. Paper and Printing, Univ. Technical of Iasi, Iasi, Romania, Feb. 02, 2015.
[11] Rossitza S., Offset printing without Isopropyl alcohol in damping solution, Energy Procedia, Vol. 74, pp. 690-698, Aug. 28, 2015.
[12] Matsumoto H., Wantanabe K., Uesugi T., Dampening water composition for lithographic plate, US patent 5064749, Nov. 12, 1991.
[13] Ma X. X., Wei X. F., Huang B. Q., Zhang W., The Effect of Emulsification Ratio on Ink-Transfer Performance and Printing Quality of UV Offset Ink, Advanced Materials Research, Vol. 380, pp. 77-80, Nov. 01, 2011.
[14] Luo K. Y., Wei X. F., Huang B. Q., The Influence of Emulsification on the Rheological Properties of UV Curable Offset Ink, Advanced Materials Research, Vol. 380, pp. 95-98, Nov. 01, 2011.
[15] Ma X. X., Wei X. F., Huang B. Q., The Effect of the Proportion of Prepolymer and Monomer on the Performance of UV Offset Ink, Advanced Materials Research, Vol. 284-286, pp. 2022-2025, Jul. 01, 2011.
[16] Chen Q., Emulsification rate of sheet-fed offset ink and its effect on printed quality, M.S. Thesis, Sch. of Printing, RIT, Rochester, NY, 1986.
[2] Technical Staff, The function of fountain solution in Lithography, Fuji Hunt Photographic Chemicals Inc., Florida, USA, 2003. Avaiable: https://asset.fujifilm.com/master/americas/files/2020-03/6e5fbe31a9a2664fef13625b33692956/FunctionFS.pdf
[3] Carina Sötebier, UV ink: Properly cured, European Coating Journal, Vol. 06, pp. 50-56, Jun. 01, 2019.
[4] Stan M., Paul S., Mikhail L., Jean D.-T., Lithographic energy curable inks, WO2003014239A1, Aug. 07, 2001.
[5] Edward S., Gordon K., Subhankar C., Bhalendra J. P., Low VOC cationic curable lithographic printing inks, US patent 2002/0040073 A1, Apr. 04, 2002.
[6] Leach R. H., Pierce R. J., Hickman E. P., Mackenzie M. J., Smith H. G., Ultra-violet and electron-beam curing systems, The Printing Ink Manual, 5th ed., Dordrecht, The Netherlands, Springer, 2007, ch. 11, pp. 636-677.
[7] Hartmann. Fountain solution: Fundamentals of offset dampening, SunChemical, New Jersey, USA, 2010.
[8] Krishnan R., Jones J., Newton J., Henderson D. C., Fountain solutions for offset lithographic printing inks, US patent 20120192735, Aug. 02, 2012.
[9] Tag C., Pykonen M., Rosenholm J. B., Backfolk K., Wettability of model fountain solutions: The influence on topo-chemical and -physical properties of offset paper, Journal of Colloid and Interface Science, Vol. 330, pp. 428-436, Feb. 15, 2009.
[10] Ciolacu F., Bobu E., Paper interaction with fountain solution during multi-color offset printing, Dept. Paper and Printing, Univ. Technical of Iasi, Iasi, Romania, Feb. 02, 2015.
[11] Rossitza S., Offset printing without Isopropyl alcohol in damping solution, Energy Procedia, Vol. 74, pp. 690-698, Aug. 28, 2015.
[12] Matsumoto H., Wantanabe K., Uesugi T., Dampening water composition for lithographic plate, US patent 5064749, Nov. 12, 1991.
[13] Ma X. X., Wei X. F., Huang B. Q., Zhang W., The Effect of Emulsification Ratio on Ink-Transfer Performance and Printing Quality of UV Offset Ink, Advanced Materials Research, Vol. 380, pp. 77-80, Nov. 01, 2011.
[14] Luo K. Y., Wei X. F., Huang B. Q., The Influence of Emulsification on the Rheological Properties of UV Curable Offset Ink, Advanced Materials Research, Vol. 380, pp. 95-98, Nov. 01, 2011.
[15] Ma X. X., Wei X. F., Huang B. Q., The Effect of the Proportion of Prepolymer and Monomer on the Performance of UV Offset Ink, Advanced Materials Research, Vol. 284-286, pp. 2022-2025, Jul. 01, 2011.
[16] Chen Q., Emulsification rate of sheet-fed offset ink and its effect on printed quality, M.S. Thesis, Sch. of Printing, RIT, Rochester, NY, 1986.