Naslov
Durability assesment of digital pigment inkjet printing on plasma pretreated natural leather for car interior design

Autori
Ercegović Ražić, Sanja ; Glogar, Martinia Ira ; Žuvela Bošnjak, Franka ; Ludaš, Anja ; Sejdić, Dario

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

Izvornik
International Textile & Fashion Congress (ITFC 2023) : Proceeding Book / Berkalp, Ömer B. - Istanbul : Istanbul Technical University (ITU), 2023, 235-241

ISBN
78-975-561-560-8

Skup
International Textile & Fashion Congress (ITFC 2023), Innovative textiles and fashion trends tackling global challenges

Mjesto i datum
Istanbul, Turska, 16.03.2023. - 17.03.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bovine leather ; Low-pressure plasma ; Digital inkjet printing ; Print fastness

Sažetak
For this work, two semi-finished leather products and one finished leather were used in the experiment, for surface pretreatment with ecologically favorable plasma technology followed by digital inkjet printing technology. For ecological as well as technical reasons, the printing process was carried out without primer as well as without polyurethane primer in order to achieve high printing quality. Semi/finished products made of chrome or synthetically tanned bovine leather with different degrees of finishing. The samples are pretreated with oxygen and argon plasma and then printed using digital inkjet pigment printing (direct and transfer). The effectiveness of plasma pretreatment on the durability of digital pigment inkjet printing was characterized by analyzing the surface morphology with a scanning electron microscope, while the coverage of the printing surface was analyzed with a Dino-lite microscope. It was found that the surface of the samples was cleaner but rougher, with accentuated and open grooves and the presence of granulated segments on the pretreated leather surface. The effect of the (pre)treatments on the hydrophilicity, friction resistance, flexural resistance and ageing resistance after exposure to artificial light were performed under controlled laboratory conditions. After 25.000 cycles, almost all of the samples had excellent flexural resistance, as they did after 75 hours of artificial light irradiation, indicating that the samples printed with transfer printing had the highest values, regardless of the type of tanning agent or the type of plasma pretreatment working gas. Due to the spread of pigment ink on the surface during direct printing, it was not possible to apply the primer to semi-finished products. In this case, the only finished sample printed with primer using the direct printing process has the highest score, which is the best score for the direct printing process compared to transfer printing.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

Napomena
This research is funding by the bilateral
Croatian- Slovenian project Development of
biodegradable and antimicrobial cellulose
composites from waste material, 2020 - 2022
(leaders S. Ercegović Ražić and M. Gorjanc).

POVEZANOST RADA