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    Effect of cellulose nanocrystal incorporated acrylic copolymer resin on printing properties of waterborne inks

    Year: 2022

    Journal: Prog. Org. Coat., Volume 167, JUN

    Authors: Sharma, Bhavna; Singh, Sauraj; Prakash, Brahma; Sharma, Harish; Maji, P. K.; Dutt, Dharm; Kulshreshtha, Anurag

    Organizations: Ministry of Education (MoE); Ministry of Environment, Forest and Climate Change, Govt. of India; Gravures Pvt. Ltd., Noida, India [Code-UAY-1180]

    Keywords: Cellulose nanocrystals (CNCs); Water-borne inks; Rotogravure printing; Flexible packaging

    In this study, cellulose nanocrystals (CNCs) incorporated acrylic-co-polymer resin (Ac-co-res/CNC) were synthesized to improve water-borne ink printing properties. The CNCs were incorporated into the acrylic-co-polymers (Ac-co-res) to enhance the physico-chemical properties of Ac-co-res. The Ac-co-res was synthesized by free radical polymerization using different acrylic monomers. The three types of water-borne inks (cyan, magenta, and yellow) were prepared using Ac-co-res and Ac-co-res/CNC and subsequently printed on corona-treated PET films. The inks having Ac-co-res/CNC showed significant enhancement in drying rate, adhesion and gloss. After adding CNCs, the drying time decreased from 9 s to 7 s, adhesion increased by 2%, the gloss was increased from 20 to 48%, compared to inks prepared with Ac-co-resin. Thus, the overall results revealed that the Ac-co-res/CNC showed excellent potential in developing water-borne inks in the flexible printing application.
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