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Title : Physicochemical and Dyeing Characteristics of Cotton Fabric Dyeing from The Extract of Angsana (Pterocarpus indicus) Bark
Author :

Mukmin Sapto Pamungkas, S.T., M.Eng. (1) Prof. Dr. Ir. Edia Rahayuningsih, M.S., IPU. (2) TARANIPA MARFITANIA (3) WACHID SITI FATIMAH (4)
Date : 25 2021
Keyword : Angsana extract, cotton fabrics, natural dye, Pterocarpus indicus Angsana extract, cotton fabrics, natural dye, Pterocarpus indicus
Abstract : Herein, the Angsana bark (Pterocarpus indicus) extract was studied for its potential as a natural dye for cotton fabrics. Angsana bark was extracted using water solvent at 70 °C with a ratio of solid-water of 70 g/L, for 1 hour, with a yield of 20.08% (w/w). The Angsana bark extract has acidic pH, a tannin content of 11.90%, and a density of 1.015 g/mL. Visible spectrophotometry results showed the highest peak of 395 nm, which indicated a high tannin content. FTIR revealed the presence of hydroxyl (-OH) (indicating an auxochrome group), aromatic (C-H) (indicating an aromatic group), carbonyl (C=O), and ether (C-O-C) groups. Cotton fabrics were premordanted using alum and soda ash prior to dyeing. Dyeing of the cotton fabrics was done by immersion for 15 minutes in the Angsana extract repeatedly and postmordanted using alum, lime, and iron sulfate. The colors produced by the alum and lime fixatives were different variations of brown, whereas that for the iron sulfate fixative was dark green. The highest K/S value of 8.554 was found for the iron sulfate fixative. Overall wash and light fastness scores were presented on the scale of 4 (good) and 4/5 (excellent). Thus, Angsana bark in water can be used as a source of natural dye for cotton fabrics, showing potential as a new material for application in cotton fabrics.
Group of Knowledge : Teknik Kimia
Original Language : English
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 Pamungkas_25_5_13.pdf
Document Type : [PAK] Full Dokumen
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2 PHYSICOCHEMICAL AND DYEING CHARACTERISTICS OF COTTON FABRIC DYEING FROM THE EXTRACT OF ANGSANA (Pterocarpus indicus) BARK.pdf
Document Type : [PAK] Cek Similarity
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3 Korespondensi Angsana MJAS.pdf
Document Type : [PAK] Bukti Korespondensi Penulis
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