Naslov
Optical properties of digital inks on straw-containing papers with TiO2-based coating upon ageing

Autori
Plazonić, Ivana ; Radić Seleš, Valentina ; Bates, Irena ; Rudolf, Maja ; Petric Maretić, Katja ; Majnarić, Igor

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings - The Eleventh International Symposium GRID 2022 / Vladić, Gojko - Novi Sad, 2022, 317-323

ISBN
978-86-6022-533-2

Skup
11th International Symposium on Graphic Engineering and Design (GRID 2022)

Mjesto i datum
Novi Sad, Srbija, 03.11.2022. - 05.11.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
straw pulp, paper, TiO2-based coating, ageing

Sažetak
Compared to papers derived from virgin fibres, recycled papers possess somewhat limited optical, strength and printing properties. Strength properties are usually increased by blending recycled fibres with virgin fibres in pulp for paper production, while optical and printing properties are often improved by coating after the paper is being manufactured. In this study, the usability of virgin fibres derived from straw as the agricultural residue of wheat, barley and triticale crops for paper production was evaluated based on the stability of prints on laboratory-made paper. For that purpose, in laboratory conditions, the papers with the addition of straw pulp in the pulp of recycled fibres were formed and prior to printing they were coated with TiO2-based coating. Process inks, in full-tone, were applied on coated straw-containing papers by digital printing process. Optical properties of digital prints upon accelerated ageing were evaluated based on Euclidean colour difference calculated from spectrophotometric values measured on black and magenta prints before and after 48 h and 96 h of ageing. The obtained results were compared with those provided by printing substrates made only from recycled fibres with and without TiO2-based coating. It was observed that TiO2-based coating has no influence on the stability of black digital prints, while each layer of TiO2-based coating reduces deviations in magenta colour upon ageing.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

Napomena
This work has been supported in part by Croatian Science Foundation under the project „Printability,
quality and utilization of substrates with non-wood fibres “(UIP-2017-05-2573) and by the University of
Zagreb.

POVEZANOST RADA