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실내 인테리어용 오크 무늬목의 산성염료 염색성 및 후가공 효과
조항성(Hang-sung Cho),심의진(Eui-jin Shim) 충북대학교 생활과학연구소 2022 생활과학연구논총 Vol.26 No.3
Background/Objectives: In this study, we compared and analyzed the dye ability of oak-patterned materials with acid dyes, and evaluated their performance as interior materials. Use of processed timber can help reduce environmental damage and the economic burden of resources (important problems with use of raw timber) and can meet the needs of various fields where the sensibility of raw timber is required. Veneer wood is positioned as a high-value-added product due to its luxury and beauty, and it is used in various fields as a building-related material, such as interior decoration, furniture, flooring, building interior materials, and lumber. Dyeing is necessary to enhance the aesthetic appearance of this pattern and to expand its use. Methods: As the wood used in the experiment, American red oak, which has marketability in the market, was selected. The spectral reflectance of each wavelength band was measured using spectrophotometer to evaluate the apparent concentration and dyeability of the dyed and fixed samples. Durability was evaluated by measuring rubbing and light fastness. Results: The oak pattern was dyed with 3 types of acid dyes and a comparative analysis was performed. The most suitable conditions are 95℃, 3 hours, and 3% o.w.f. In addition, evaluating resilience to daylight fastness, resilience to rubbing, fire resistance, and flame retardance, yielded results suitable for use as an interior material. Conclusion/Implications: It was confirmed that veneer can be dyed with acid dyes and used. It is hoped that this study will be used as basic data for dyeing veneer with acid dyes and synthetic dyes in the future. The results of this research are expected to contribute as basic data for the dyeing process of synthetic dyes.
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이혜빈 ( Hye Bin Lee ),송지은 ( Ji Eun Song ),심의진 ( Eui Jin Shim ),김혜림 ( Hye Rim Kim ) 한국의류산업학회 2018 한국의류산업학회지 Vol.20 No.3
This study aim is to provide new coloration method by laccase-catalyzation on natural phenolic dyeing process. In this study, silk was dyed with black tea, which is one of polyphenolic dye, extracted in distilled water. The dyed samples were catalyzed by laccase as the eco-friendly mordanting process. To optimize the conditions of laccase-catalyzed coloration, conditions were varied by different mordanting methods (one-bath, two-bath), temperature and treatment time. The dye affinity in terms of the value of K/S, L*, a*, b*, and H, V, C was measured by Computer Color Matching System (CCM, CM-2600d, Spectra Magic NX, Korea). The effect of laccase-catalyzed coloration on washing fastness was evaluated and compared with the synthetic mordant (Al, Cu, and Fe). As the result of color analysis of dyed silk, the optimum conditions of laccase-catalyzed coloration were determined to post-mordanting by one-bath at 50℃ for 3 hours. Under the optimum laccase-catalyzed conditions, the dyed silk was shown the color of yellowish-red. After laccase-catalyzed coloration on the dyed silk, the improvement of washing fastness was obtained compared with mordanted silk by synthetic mordant (Al, Cu, and Fe). Therefore, the present study was demonstrated that the effective enzymatic mordanting method by laccase for phenolic natural dyeing with vivid color and good fastness.
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