INVESTIGATION OF SOME SURFACE CHANGES OCCURRING AFTER BLEACHING TREATMENT ON AYOUS (Triplochiton scleroxylon K. Schum) WOOD

Authors : Ümit Ayata, Osman Çamlıbel, Elif Hümeyra Bilginer

Pages : 1-8

View : 114 | Download : 54

Publication Date : 2024-06-14

Article Type : Research Paper

Abstract :Oxalic acid (C2H2O4), hydrogen peroxide (H2O2), and sodium hydroxide (NaOH) chemicals are widely used in the bleaching industry. This research examined alterations in colour parameters, glossiness values, and the whiteness index (WI*) values following the application of bleaching agents, namely C2H2O4 and H2O2 + NaOH solutions, on ayous (Triplochiton scleroxylon K. Schum) wood. A control group was established to compare the treated surfaces. The results indicate that variance analyses revealed significant differences across all tests concerning the type of bleaching chemical used. The application of bleaching chemicals resulted in increases in WI* values in both directions. The ΔE* values were determined to be 2.21 when using the C2H2O4 chemical and 12.01 with the H2O2 + NaOH chemicals. It was determined that glossiness values decreased in both directions at 60 and 85 degrees. In addition, increases were observed in L* and ho values, while decreases were obtained in C* and a* values. It was observed that the surface properties of ayous wood changed with the chemicals used in the study.
Keywords : Ağartma, oksalik asit, parlaklık, ayous, hidrojen peroksit, renk, beyazlık indeksi, sodyum hidroksit

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