Study on the Dyeing and Fastness Properties of Ash Veneer with Acid Dyes

Abstract

As an alternative to raw wood, processed timber can help reduce costs and environmental damage while meeting the needs of various fields that require building materials possessing the sensibility of raw timber. Veneer wood is positioned as a high-value-added product owing to its elegance and beauty, and it is used in various building-related fields, such as interior decoration, furniture, flooring, building interior materials, and lumber. Dyeing is necessary to enhance its esthetic appearance and expand its use. In this study, we compared and analyzed the dyeability of ash-patterned materials using acid dyes and evaluated their performance as interior materials. The ash-patterned material was dyed using three types of acid dyes, and a comparative analysis was performed. The most suitable dyeing conditions were 80 °C, 3 h, and 3% o.w.f. Furthermore, the effect of pretreatment before the dyeing process, the effect of methyl alcohol solvent during dyeing with acid dyes, and the dyeability of veneers dyed under various temperature and time conditions were also compared and analyzed. Resilience to daylight, resilience to rubbing, fire resistance, and flame retardance of the selected material were evaluated as being suitable for use as a building material for interiors.

Effect of tannic/gallic acid-iron dyeing treatment on surface color and light fastness of bamboo veneer

“…Its utilization in various forms as one of the surface decoration materials of wood-based panels makes it widely used in the manufacture of high-grade indoor and outdoor decorative materials and furniture materials, but the monotonous colors and patterns limit its development thus it needs to be discolored. At present, the primary methods for controlling the color of wood materials are physical [ 2 ], chemical [ 3 ] and other methods of dyeing, as well as the application of light [ 4 ], heat [ 5 , 6 ] and other means. The principles of biomimetic structural color [ [7] , [8] , [9] ] and bio-dyeing [ 10 , 11 ] have also been utilized to regulate the color of wood research as well.…”