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Sonicator dyeing of modified cotton, wool and silk with Mahonia napaulensis DC. and identification of the colorant in Mahonia |
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| Authors: | Padma S. Vankar Rakhi Shanker Shalini Dixit Debajit Mahanta S.C. Tiwari |
| Affiliation: | aFacility for Ecological and Analytical Testing, Indian Institute of Technology, Kanpur 208 016, India bArunachal Pradesh State Council for Science& Technology, Vivek-Vihar, Itanagar 791 113, Arunachal Pradesh, India cDepartment of Forestry, Wild life and Environmental Sciences, Guru Ghasidas University, Bilaspur 495 009, Chhattisgarh, India |
| Abstract: | Mahonia napaulensis DC. (local name—Taming) family Berberidaceae, produces natural dye from its stem which has been used for dyeing textiles by the Apatanis (a tribe of Arunachal Pradesh) since ancient times. Sonicator dyeing with Mahonia napaulensis showed marked improvement in dye uptake. It showed that pretreatment with metal mordant (2%, w/w with respect to the fabric) improved substantially the fastness properties for dyed cotton, silk fabrics and wool yarn. Five fractions were isolated from column chromatography of the stem extract of Mahonia. Attempts have been made to identify these fractions by matching the spectral data which indicated that they were from a well-known isoquinoline alkaloid family. |
| Keywords: | Mahonia napaulensis DC. (family Berberidaceae) natural dye Cotton Wool Silk Natural dyeing |
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