Open AccessChange of Wood Moisture Content During Artificial Light Irradiation and its Influence on Colour Measurement
Author(s) -
Jan Baar,
Jitka Ondroušková,
Peter Rademacher
Publication year - 2015
Publication title -
drvna industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.287
H-Index - 19
eISSN - 1847-1153
pISSN - 0012-6772
DOI - 10.5552/drind.2015.1430
Subject(s) - water content , irradiation , materials science , composite material , environmental science , engineering , geotechnical engineering , physics , nuclear physics
This paper discusses the differences between colour parameters of dried and conditioned wood surfaces irradiated by light. Samples of two wood species – Hevea (Hevea brasiliensis Müll. Arg.) and Jatoba (Hymenaea courbaril L.) – were exposed to artificial sunlight. During this process, sample moisture content decreased by 6 %. The colour parameters were measured immediately after irradiation and after conditioning on former moisture content level. Statistically significant differences were found between colour parameter values. Nevertheless these differences were too low for practical importance.U radu se analiziraju razlike parametara boje površine suhoga i kondicioniranog drva nakon izlaganja umjetnoj svjetlosti. Uzorci dviju vrsta drva – Hevea brasiliensis Mull Arg. i Hymenaea courbaril L. – bili su izloženi umjetnoj Sunčevoj svjetlosti. Tijekom tog procesa sadržaj vode u uzorcima smanjen je za 6 %. Parametri boje izmjereni su odmah nakon izlaganja svjetlosti i nakon kondicioniranja uzoraka na početni sadržaj vode. Utvrđene su statistički značajne razlike između vrijednosti parametara boja. Ipak te su razlike premalene da bi imale praktičnu važnost