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Title: Use of neem bark as wool colourant—Optimum conditions of wool dyeing
Authors: Mathur, J P
Mehta, Anjula
Kamawat, Romila
Bhandari, C S
Keywords: Colour fastness;Dyeing;Neem bark colourant;Tensile behaviour;U B solubility;Wool
Issue Date: Mar-2003
Publisher: NISCAIR-CSIR, India
Abstract: Wool yarn has been dyed with natural colourant extracted from the bark of neem (Azadirachta indica) branch lets under the optimum conditions. Neem bark colourant shows two absorption maxima at 275 and 374 nm. Dyeing of wool yarn under the optimum conditions (pH, 4.5; colourant conc., 0.05g per gram of wool; treatment time, 60 min; and treatment temp., 97.5°C) shows very good light and wash fastness properties without deteriorating the quality of wool. The chemistry of wool dyeing process has also been discussed.
Page(s): 94-99
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.28(1) [March 2003]

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