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Xylite very much has the appearance of precious wood species with dark heartwood and also has some physical and aesthetical properties of wood, required nowadays for making valuable products. Xylite, with well recognizable and preserved wood structure, was used for studying the drying kinetics and drying quality. The drying experiments were carried out at 20 °C and 40 °C using constant relative air humidity ranging from 34 % to 87 %, on elements 6 mm, 12 mm and 18 mm thick. The visual assessment of the drying quality was additionally made by light microscopy fracture analysis. The drying time increased with the increase of relative humidity and thickness of specimens. The yield of dry material decreased with the increase of drying time and with the increase of specimen thickness. End-splitting and bowing were the most common drying defects on tangentially oriented specimens. The failure usually occurred in collapsed earlywood, in disoriented tissue or in places with soil or mineral inclusions.Ksilit izgledom podsjeća na dragocjene vrste drva tamne srži i još posjeduje relevantna fizikalna i estetska svojstva drva koja su poželjna za izradu vrijednih proizvoda. Na uzorcima ksilita dobro vidljive i očuvane strukture drva istraživana je kinetika sušenja i kvaliteta osušenih elemenata. Eksperimenti sušenja izvedeni su s elementima ksilita debljine 6, 12 i 18 mm, pri temperaturama 20 i 40 °C u intervalu relativne vlažnosti zraka od 34 do 87 %. Vizualna procjena kvalitete dodatno je ispitana primjenom frakturne analize i svjetlosnog mikroskopa. Vrijeme sušenja produžavalo se s povećanjem relativne vlažnosti zraka i debljine elemenata, a kvalitativno iskorištenje materijala smanjivalo se s produljenjem vremena sušenja i s povećanjem debljine elemenata. Glavne greške sušenja bile su čeone pukotine i uzdužno zakrivljenje tangencijalno orijentiranih uzoraka. Najčešće mjesto grešaka sušenja bilo je kolabirano rano drvo, na mjestima velike dezorijentacije vlakanaca te tkiva s mineralnim i zemljanim inkluzijama. Savijanje osušenih uzoraka ksilita dodatno se pripisuje povećanju gustoće tog materijala

Evaluation of Material Characteristics of Xylite – Part 2. Characterization of Drying Defects