Abstract
To reduce the light-induced discoloration of printed veneer, nano-TiO2 and nano-ZnO were chosen to modify red UV ink and yellow UV ink. Relative ink quality of 0.5%, 1.0%, 1.5% and 2.0% of modifier was added to UV ink by stirring. Then the modified UV ink was printed on the surface of poplar veneer. Using a laser particle sizer, UV-Vis spectrophotometer, and colorimeter, physical properties of the modified ink and color differences printed on poplar veneer were studied. Results showed that the average particle size of the UV inks modified by nano-TiO2 decreased a little while the UV inks modified by nano-ZnO had no change. Absorbance of UV ink in the ultraviolet region was increased with the addition of nano-TiO2 or nano-ZnO. Both of nano-TiO2 and nano-ZnO could prevent light-induced discoloration of printed veneer. But when UV ink modified by nano-ZnO was printed on a veneer surface, the color difference was lower than those modified by nano-TiO2. The optimum amount of nano-ZnO in red UV ink was 1.5%, and the ΔE* of the printed veneer was 0.41. Compared with the veneer printed by unmodified red UV ink, ΔE* decreased 78.1%. The optimum amount in yellow UV ink was 0.5%, and the ΔE* of the printed veneer was 3.12. Compared with veneer printed by unmodified yellow UV ink, ΔE* decreased 66.9%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
