Naslov
Evaluation of Ink Particles in Deinked Pulp with Non-Destructive Method

Autori
Hladnik, Aleš ; Bolanča Mirković, Ivana ; Bolanča, Zdenka

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

Izvornik
Proceedings 9th Conference on NDT / - Berlin : German Society for Non-Destructive Testing (DGZfP), 2006, 1-9

ISBN
3-931381-86-2

Skup
Conference on NDT (9 ; 2006)

Mjesto i datum
Berlin, Njemačka, 25.09.2006. - 29.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ink; deinking pulp; image processing; ERIC; ANOVA

Sažetak
The image processing and analysis are interesting methods for determining the number of the residual dirt specks within the defined size classes and the area they occupy in handsheets produced from fibers in different phases of the paper recycling process or produced on the paper. Dirt specks include the ink particles in the deinked pulp. In this study, prints from digital offset printing technique based on Indigo electrophotography were used for recycling. In printing process the voltage levels on the photoreceptor drum were 300V and 600V respectively. Printing substrate was the mat fine art paper of different basis weights. Effects of artificial ageing, flotation process and paper side were also studied. Residual ink size, number and area of ink particles were assessed with two image analysis systems – Spec*Scan, Apogee System and Proton. Results of a full factorial 25 experimental design from measurements obtained by Spec*Scan are presented with a special emphasis on influential factors that affect residual dirt particles distribution in deinked pulp. In addition, a comparison between the two image analysis software tools is given.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA