Akademik Veri Yönetim Sistemi
KASTAMONU UNIVERSITY JOURNAL OF FORESTRY FACULTY, cilt.24, sa.1, ss.59-73, 2024 (ESCI)
Aim of the study: This study examines the overall color change values from applying water-based,
polyurethane, and acrylic varnishes on newly prepared and naturally aged wood materials.
Materials and methods: The Turkish woodworking industry commonly selects oak (Quercus petrea
L.), chestnut (Castanea sativa M.), and scotch pine (Pinus sylvestris L.) as the preferred wood type for
preparing test samples. A total of 360 test samples are prepared for the experiments. The color difference
(ΔE*) between two colors is measured using a Minolta CR-231 color measurement device, following the
principles outlined in ASTM-D 2244.
Main results: On the C.I.E. Lab* color plane, a higher ΔE* indicates a more significant difference
between the compared colors. Among the wood type, oak exhibited the highest color change (ΔE*), while
chestnut displayed the lowest. Fresh wood materials showed higher color change values (ΔE*) than
naturally aged wood materials. The radial section direction also is showed higher color change values
(ΔE*) than the tangential section direction.
Research highlights: Regarding varnish type, acrylic varnish indicated a minor color change, followed
by polyurethane and water-based varnishes, respectively. Acrylic varnish is recommended for studies
with minimal color change and for preserving the wood material's natural color