Naslov
Possibility of efficiency increasing of deinking flotation of the digital offset print

Autori
Barbarić-Mikočević, Ž. ; Matković, P. ; Bolanča- Mirković, I.

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

Izvornik
Proceedings of 4th DAAAM International Conference on Advanced Technologies for Developing Countries / Kljajin, Milan ; Katalinić, Branko ; Budić, Ivan - Slavonski Brod : Josip Juraj Streossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, 2005, 207-212

Skup
4th DAAAM International Conference on Advanced Technologies for Developing Countries

Mjesto i datum
Slavonski Brod, Hrvatska, 21.07.2005. - 24.07.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
digital offset print ; pre-processing ; flotation deinking

Sažetak
The recycling process of the paper waste consist of four main process: (1) preparation of the cellulose suspension of the waste paper in which the ink/toner particles and other impurities are dispersed, (2) deinking cellulose suspension by separating and removing the dispersed particles of ink/toner from the cellulose suspension, (3) bleaching the cellulose suspension after deinking and (4) treatment of the processed water with the aim to reuse it in the recycling process [1]. In the paper industry two basic deinking processes are used: (flotation deinking, selective process in which by the air blowing through the cellulose suspension in the flotation cell the particles of ink/toner collected in the form of froth, are removed and (2) wash deinking where the particles of toner are removed from the cellulose suspension by washing them in great quantities of water. The success of flotation deinking depends on the type and concentration of the chemical agents which influence the swelling of cellulose fibers, removal of ink/toner on the cellulose fibers, coagulation, sedimentation, flocculation etc. [2, 3, 4]. The efficiency of the chemical deinking flotation of Indigo prints is weak. The reason for that is firstly the way of sample production. By the activity of heat liquid toner warms up. Hot polymerized toner is transferred to the cold printing substrate. By print disintegration the polymer film becomes soft and it fragments into particles of the broad range of sizes and irregular shapes [5, 6, 7].

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

POVEZANOST RADA