Equalizing effect of β‐cyclodextrin on dyeing of polyamide 6,6 woven fabrics with acid dyes |
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Authors: | E Perrin Akçakoca Kumbasar Riza Atav Abbas Yurdakul |
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Affiliation: | 1. Email:perrin.akcakoca@ ege.edu.tr;4. Department of Textile Engineering, Ege University, Bornova, Izmir, Turkey |
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Abstract: | Cyclodextrins (CD) are produced from starch by the action of cyclodextrin glycosyltransferase (CGTase) enzyme. Structurally, cyclodextrins consist of 6, 7, or 8 (α, β, and γ cyclodextrins, respectively) D‐glucopyranosyl units connected by α‐(1,4) glycosidic linkages. Having polar and hydrophilic outer sides and hydrophobic cavitation gives cyclodextrins a chance to form inclusion complexes with dyes in hydrophilic mediums. In this research, the equalizing effect of β‐cyclodextrins in dyeing of polyamide 6,6 woven fabrics with 6 different acid dyes were investigated. From the experimental results, it was determined that the β‐cyclodextrin shows a retarding and equalizing effect in dyeings carried out with the dyes that show interaction with β‐CD. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2660–2668, 2007 |
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Keywords: | cyclodextrin PA 6 6 inclusion complex equalizing dye |
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