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Contrast ratio of colorant film: Theoretical consideration and effect of polymeric binder
Author(s) -
Park Jong S.
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.31874
Subject(s) - contrast ratio , materials science , dispersion (optics) , contrast (vision) , chemical engineering , pigment , composite material , optics , chemistry , organic chemistry , optoelectronics , physics , engineering
Abstract We made theoretical approaches concerning the optical property of a pigment‐containing system to understand the conditions under which an enhanced contrast can be achieved. Maintaining a uniform distribution of pigment particles in thin film well, as in millbase dispersion, is considered critical for a higher contrast. As a specific case, we estimated the effect of a polymeric binder on the contrast ratio. Chemical composition of the dispersion binder has a huge effect, and carboxylate in its long side chain plays a favorable role. Using this binder, we were able to obtain a smooth surface and uniformity, and an enhancement of contrast ratio in the colorant film. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010