Naslov
The influence of labels on paper recycling

Autori
Vukoje, Marina ; Bolanča Mirković, Ivana ; Babić, Antonela ; Majnarić, Igor

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

Izvornik
MATRIB 2021. Materials, Tribology and Recycling. Proceedings / Ćorić, Danko ; Šolić, Sanja ; Ivušić, Franjo - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2021, 487-498

Skup
21th International Conference on Materials (MATRIB 2021)

Mjesto i datum
Vela Luka, Hrvatska, 30.06.2021. - 02.07.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Labels, deinking flotation, recycling, optical characteristics, Sommerville test

Sažetak
The growing focus on sustainable products and packaging, raises the question about labels recyclability. The recyclability of labels actually depends on the composition of the labels and their purpose, while the great variety in their creation poses a challenge to their recycling. In this paper, the influence of the polymer labels presence on paper recycling processes is analyzed. Used labels consist of a thin paper backing, glue (adhesive) and polymer with a print. Recycling was performed by chemical deinking flotation, and removal of sticky particles by Somerville recycling test. The efficiency of the deinking flotation process was evaluated by measuring the optical characteristics of recycled paper. The results show that label recycling is difficult but possible, only because the prints on the polymer substrate show a hydrophobic nature, despite the fact that during disintegration they do not break into smaller particles but remain as large specks. Prints together with the polymer substrate are separated during deinking flotation in the form of flotation foam. The problem in label recycling is due to the presence of adhesives .

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA