Water-based flexographic ink using chalcones exhibiting aggregation-induced enhanced emission for anti-counterfeit applications

Bhagya, R S and Sunil, Dhanya and Shetty, Prakash and Kagatikar, Sneha and Wagle, Shivananda and Lewis, Prinston and Kulkarni, Suresh D and Kekuda, Dhananjaya (2021) Water-based flexographic ink using chalcones exhibiting aggregation-induced enhanced emission for anti-counterfeit applications. Journal of Molecular Liquids, 344. ISSN 0167-7322

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Abstract

In pursuit of fluorescent pigments, a pyrene-based chalcone 1-(4-chlorophenyl)-3-(3a1 ,6,8a,10a-tetrahy dropyrene-1-yl)prop-2-en-1-one (CPP), which exhibited aggregation-induced enhanced emission was synthesized. Water-based eco-friendly flexographic inks were formulated using CPP (in batch ink) and Luminous yellow RG-3 (in standard ink) as pigments. The batch and standard inks were coated on secu�rity paper and printed on security and packaging papers as well as boards. The printed substrates dis�played yellow fluorescence upon excitation under UV light. The gloss, light-fastness, abrasion resistance and colorimetric values of the batch ink were superior to that of standard ink. The study revealed the potential of CPP as a fluorescent pigment for security printing applications, optical�electronic devices such as transistors, anti-counterfeiting labels, etc.

Item Type: Article
Uncontrolled Keywords: Anticounterfeiting Chalcone Fluorescence Water-based flexographic ink Security printing
Subjects: Engineering > MIT Manipal > Chemistry
Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 20 Jan 2022 09:01
Last Modified: 20 Jan 2022 09:01
URI: http://eprints.manipal.edu/id/eprint/158112

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