Dyeing studies and fastness properties of brown naphtoquinone colorant extracted from Juglans regia L on natural protein fiber using different metal salt mordants

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• 作者：Mohd Nadeem Bukhari ; Shahid-ul-Islam ; Mohd Shabbir…
• 关键词：Juglans regia L. ; Napthoquinone ; Dyeing ; Wool ; Fastness properties
• 刊名：Textiles and Clothing Sustainability
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：3
• 期：1
• 全文大小：1088KB
• 刊物类别：Textile Engineering; Environmental Management; Sustainable Development; Industrial Chemistry/Chemica
• 刊物主题：Textile Engineering; Environmental Management; Sustainable Development; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Engineering Economics, Organization, Lo
• 出版者：Springer Singapore
• ISSN：2197-9936
• 卷排序：3

文摘

In this study, wool fibers are dyed with a natural colorant extracted from walnut bark in presence and absence of mordants. The effect of aluminum sulfate, ferrous sulfate, and stannous chloride mordants on colorimetric and fastness properties of wool fibers was investigated. Juglone was identified as the main coloring component in walnut bark extract by UV visible and FTIR spectroscopic techniques. The results showed that pretreatment with metallic mordants substantially improved the colorimetric and fastness properties of wool fibers dyed with walnut bark extract. Ferrous sulfate and stannous chloride mordanted wool fibers shows best results than potassium aluminum sulfate mordanted and unmordanted wool fibers. This is ascribed due to strong chelating power of ferrous sulfate and stannous chloride mordants.