Use of Tectonagrandis Leaf Extract in Colouring Silk Cloth Material Based on pH and Mordant Variations

International Conference on Advanced Materials for Better Future 2017

Rosyida, A.^1,2 ; Suranto^1

Department of Environmental Science Graduate Program, Universitas Sebelas Maret, St. Ir. Sutami 36 A, Kentingan Jebres, Surakarta

57126, Indonesia^1

Textile Chemistry Program, Akademi Teknologi Warga, St. Raya Solo Baki, Km 2, Kwarasan Solo Baru, Sukoharjo

57552, Indonesia^2

关键词: Chemical substance;    Industrial activities;    Material-based;    Natural colour;    Optimum conditions;    Secondary metabolism;    Tectona grandis;    Wash fastness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012051/pdf
DOI  :  10.1088/1757-899X/333/1/012051

来源: IOP

【 摘 要 】

One of the very potential use of plant natural colour in the industrial activities was Anthocyanin. This substance contains in a number on plant organs such as Tectona Grandis (Fabaceae) particularly in their leaf materials. In order to get this secondary metabolism, the aim of this research was to find out the optimum condition of mordant and the pH combination in producing natural colour of Tectonagrandis leaf extract. To get this chemical substance, 1 kilogram of young leaves were cut into smaller size and soaked in 7 litre of H2O for 12 hour9. The solution was then boiled for 15 minutes. To get the best colour, variations of pH (5, 7 and 9) respectivelly were applied. The results showed that purple to redness were resulted when pH 5 and no additional mordant was added. Conversly the greyness to black, were produced when ferrosulphate were added. When the addition of alum was made the redies purple will appear. These colours were considered quite good quality under examination of grey and staining scales (4-5) after treated by both wet and dry rubbing methods. The test for wash fastness resulted in sufficiently good value of color change (value of 3 on Grey Scale standard), while test for staining demonstrated good staining (value of 4 on Staining Scale standard). This early finding was quite promosing to be applied in the near future in providing natural colours for industrial purposes.