Use of confocal laser scanning microscopy and a computer model to understand ink cavitation and filamentation
Source abstract
Abstract
In the offset printing process, ink film splitting has an important impact on formation of ink filaments. The filament size and its distribution influence the leveling of ink and hence affect ink setting and the print quality. However, ink filaments are difficult to image due to their short lifetime and fine length scale. Due to this difficulty, limited work has been reported on the parameters that influence filament size and methods to characterize it. We imaged ink filament remains and quantified some of their characteristics by changing printing speed, ink amount, and fountain solution type. Printed samples were prepared using a laboratory printability tester with varying ink levels and operating settings. Rhodamine B dye was incorporated into fountain solutions to aid in the detection of the filaments. The prints were then imaged with a confocal laser scanning microscope (CLSM) and images were further analyzed for their surface topography. Modeling of the pressure pulses in the printing nip was included to better understand the mechanism of filament formation and the origin of filament length scale. Printing speed and ink amount changed the size distribution of the observed filament remains. There was no significant difference between fountain solutions with or without isopropyl alcohol on the observed patterns of the filament remains.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Color Science and Applications · Nanomaterials and Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
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1. Fetsko, J.M. and Zettlemoyer, A.C., Tappi 45(8): 667(1962).
2. Oittinen, P. and Saarelma, H., Papermaking Science and Technology: Book 13, Printing, Fapet Oy, Jyväskylä, Finland, 1998.
3. Bery, Y.A. and Loel, P.A., Int. Print. Graphic Arts Conf., Proc., TAPPI PRESS, Atlanta, GA, 1992, p. 53.
4. De Grace, J.H., Dalphond, J.E., and Mangin, P.J., Adv. Print. Sci. Technol., Proc. 21st Res. Conf., vol. 21, Pentech Press, London, 1991, p. 312.
5. Ström, G.R. and Karathanasis, M., Coat. Graphic Arts Conf., Proc., TAPPI PRESS, Atlanta, 2007, Conf. CD.
6. Zang, Y.H. and Aspler, J.S., TAPPI J. 78(1): 147(1995).
7. Rousu, S., Gane, P., and Eklund, D., Adv. Coat. Fundam. Symp., Proc., TAPPI PRESS, Atlanta, 2003, p. 125.
8. Oittinen, P. and Lindquist, U., Pap. Puu 63(6-): 432(1981).10.51809/te.103690 ↗
9. Lyne, B., Adv. Print. Sci. Technol., Proc. 21st Res. Conf., vol. 20, Pergamon Press, Oxford, UK, 1990, p. 236.
10. Ercan, S. and Bousfield, D.W., Int. Print. Graphic Arts Conf., Proc., TAPPI PRESS, Atlanta, 2000, p. 121.
11. Desjumaux, D.M., Bousfield, D.W., and Aurenty, P., TAGA Conf., Proc., Technical Association of the Graphic Arts, Sewickley, PA, 1998, p. 618.
12. Bassemir, R.W., Am. Ink Maker 59(2): 33(1981).10.1080/00185868.1981.9948180 ↗
13. Ercan, S.N., “The influence of process parameters on filament size distribution,” Ph.D. thesis, University of Maine, Orono, ME, 2001.
14. Kawashima, M. and Bousfield, D.W., Coat. Graphics Arts Conf., Proc., TAPPI PRESS, Atlanta, 2007, Conf. CD.
15. Ozaki Y., Bousfield, D.W., and Shaler, S., TAGA Conf., Proc., Technical Association of the Graphic Arts, Sewickley, PA, 2005, p. 32.
16. Ozaki Y., Bousfield, D.W., and Shaler, S., J. Pulp Pap. Sci. 31(1): 48 (2005).
17. Preston, J.S., Parsons, D. J., Gate, L.F., et al., J. Graphic Technol. 1(2): 29(2003).
18. Koivula, H., Juuti, M., Bousfield, D.W., et al., TAPPI J. 8(2): 19(2009).10.32964/TJ8.2.19 ↗
19. Niness, B., Bousfield, D.W., and Triantafillopoulos, N., Coat. Conf., Proc., TAPPI PRESS, Atlanta, 1998, p. 515.
20. Carvalho, M.S. and Scriven, L.E., J. Comput. Phys. 138(2): 449(1997).10.1006/jcph.1997.5826 ↗