Naslov
Packaging made from recycled paper and board : evaluation of the suitability for direct food contact

Autori
Jamnicki, Sonja ; Lozo, Branka ; Rutar, Vera

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

Izvornik
Proceedings of the 2nd International Joint Conference on Environmental and Light Industry Technologies / Borbély, Ákos - Budimpešta : New York : Rejtõ Sándor Faculty of Light Industry and Environmental Engineering, Óbuda University, 2011, 115-124

ISBN
978-615-5018-23-7

Skup
International Joint Conference on Environmental and Light Industry Technologies (2 ; 2011)

Mjesto i datum
Budimpešta, Mađarska, 21.11.2011. - 22.11.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
food packaging; health safety; recycled fibres; chemical deinking flotation; reduction of contaminants

Sažetak
This paper deals with safety issues of the recycled-fibre based materials and their suitability for direct food contact. The evaluation of food contact suitability was conducted on two recycled paper samples commonly used as integral parts of corrugated container, such as pizza packaging containerboard. The white top testliner sample and the fluting sample were obtained from industry. Since the majority of fibres in the examined materials were produced by recycling processes in which only the mechanical cleaning methods were used (with slight exception of the white top ply of testliner sample for which the deinked pulp was used), these samples were subjected to additional chemical cleaning by means of laboratory deinking flotation. The aim of this experiment was to evaluate the possible decrease in the amount of chemical contaminants in the composition of pulp after chemical deinking flotation had been conducted. Food contact analyses were done on the original paper samples and the deinked pulp handsheets made after deinking flotation. Food contact analyses comprised determination of heavy metals (Cd, Pb, Hg), primary aromatic amines, diisopropylnaphthalenes (DIPN), phthalates and polychlorinated biphenyls (PCB) from aqueous or organic solvent extracts of paper samples. The fastness of the fluorescent whitening agents was determined as well. It was found that all of the investigated contaminants were below the maximum limit of concentration proposed for these compounds by the European legislation. Furthermore, applied deinking flotation on the white testliner and fluting samples had a positive impact on the reduction of chemical contaminants from the fibre suspension.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA