PRE-DESIGN OF INDUSTRIAL LAMINATED BAMBOO FLOORING MADE FROM BETUNG BAMBOO (DENDROCALAMUS ASPER): EVALUATION OF STAINING BETUNG BAMBOO (DENDROCALAMUS ASPER) STRIPS USING NATURAL AND SYNTHETIC DYES

• Main Author: Athiah Al'afifah, Jaenab
• Format: Final Project
• Language: Indonesia
• Subjects: Teknologi
• Online Access: https://digilib.itb.ac.id/gdl/view/74159
• Institution: Institut Teknologi Bandung

Bamboo is a forest product with extensive uses such as furniture, construction, bamboo flooring, and others. The use of dyes in coloring has now become important in bamboo staining because color can attract consumers and improve aesthetics. Based on the source, dyes divided into two groups which are natural dyes and synthetic dyes. In the other side, another important step in bamboo processing is preservation. This research examines bamboo staining using synthetic dyes such as Wantex brand textile dyes, natural dyes derived from the extraction of sappan wood, and examines the effect of the use of preservatives in the form of borax in dyes. Several tests were carried out, including retention, penetration, staining evaluation using the CIELab method, and discoloration test. It was found that the retention of natural dyes was higher, while the retention with added preservatives was lower. Penetration is higher in natural dyes and with added preservatives. The color produced from synthetic coloring has a higher red intensity and produces a darker brightness level. While the addition of preservatives produces a lighter color with a higher brightness value and a smaller red color intensity. Color change testing showed that all treatments experienced color changes caused by the breakdown of lignin and chromophore components by UV light into another chromophore component and free radicals.