Color change of beech mature wood and false heartwood through accelerated ageing process

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dc.contributor.authorDzurenda, Ladislav
dc.contributor.authorDudiak, Michal
dc.contributor.authorOčkajová, Alena
dc.date.accessioned2026-08-07T06:45:03Z
dc.date.available2026-08-07T06:45:03Z
dc.date.issued2026
dc.descriptionIn: Acta Facultatis Xylologiae Zvolen. Zvolen : Technická univerzita vo Zvolene, 2026. ISSN 1336-3824. Roč. 68, č. 1 (2026), s. 17-25.
dc.description.abstractThe differences in the surface color of beech mature wood and false heartwood in the process of simulated aging induced by UV radiation in a Q-SUN Xe-3-HS xenon test chamber for 360 hours are presented in the paper. Color measurement in the color space CIE L*a*b* on exposed surfaces of beech wood samples was performed with a Color Reader CR-10 colorimeter. During exposure, the course of changes in individual coordinates (L*, a*, b*) of the color space CIE L*a*b* was recorded. The resulting change in wood color was evaluated through the overall color change. The surface of mature beech wood darkened from a light white-gray color with a yellow tinge to a red-brown color shade during exposure to UV radiation in a xenon test chamber. On the contrary, the surface of beech false heartwood slightly lightened from the original red-brown color to its paler shade. The magnitude of color changes on the surfaces of beech mature wood and false heartwood caused by UV radiation indicates the values of the total color difference for mature wood ∆Emw* = 15.8 and for false heartwood ∆Efhw* = 10.
dc.description.sponsorshipAPVV-21-0051 Výskum nepravého jadra a bele dreva dreviny Buk lesný (Fagus sylvatica L.) za účelom eliminácie farebných rozdielov procesom termickej úpravy sýtou vodnou parou KEGA 015TU Z-4/2025 Tvorba podporných nástrojov pre ďalšie a aktualizačné vzdelávanie pracovníkov v drevospracujúcom priemysle pre potreby Industry 4.0
dc.identifier.doihttps://doi.org/10.17423/afx.2026.68.1.02
dc.identifier.issn1336-3824
dc.identifier.urihttps://repo.umb.sk/handle/123456789/1554
dc.language.isoen
dc.publisherTechnická univerzita vo Zvolene
dc.rightsCC BY Creative Commons Attribution 4.0 International
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectbukové drevo
dc.subjectumelé jadrové drevo
dc.subjectfalse heartwood
dc.subjectzrelé drevo
dc.subjectmature wood
dc.subjectfarba dreva
dc.subjectwood color
dc.subjectfarebná disperzia
dc.subjectcolor dispersion
dc.subjectstarnutie
dc.subjectaging
dc.subjectageing
dc.titleColor change of beech mature wood and false heartwood through accelerated ageing process
dc.typeArticle
dc.typeinfo:eu-repo/semantics/article

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