Institute for Color Science and Technology with scientific cooperation of Iran Color Society Journal of Color Science and Technology 1735-8779 6 1 2012 03 20 The Effect of Dendrimer on Cotton Dyeability with Direct Dyes The Effect of Dendrimer on Cotton Dyeability with Direct Dyes 59 65 76039 FA F. Khakzar Bafrooei Faculty of Textile Engineering, Amirkabir University of Technology R. M. A. Malek Faculty of Textile Engineering, Amirkabir University of Technology 0000-0002-3389-4691 F. M. Mazaheri Faculty of Textile Engineering, Amirkabir University of Technology Journal Article 1970 01 01 Pre-treatment of cotton fabric by poly(propylene imine ) dendrimer enhanced its color strength using C.I DIRECT RED 81 and C.I. DIRECT BLUE 78. Application of this dendrimer and the direct dyes simultaneously on cotton fabric by exhaust as well as continuos dyeing method has been studied with slightly improved dyeing results. Pre-treatment of the cotton fabric with dendrimer in emulsion form using pad-dry method, followed by continuous dyeing, increased in color strength and level dyeing as well as light and wash fastness was achieved. The use of the dendrimer in emulsion form prevents the aggregation of dendrimer. As a result, level dyeing with C.I. DIRECT RED 81 and C.I. DIRECT BLUE 78 dyes as well as satisfactory color strength has been noticed. Pre-treatment of cotton fabric by poly(propylene imine ) dendrimer enhanced its color strength using C.I DIRECT RED 81 and C.I. DIRECT BLUE 78. Application of this dendrimer and the direct dyes simultaneously on cotton fabric by exhaust as well as continuos dyeing method has been studied with slightly improved dyeing results. Pre-treatment of the cotton fabric with dendrimer in emulsion form using pad-dry method, followed by continuous dyeing, increased in color strength and level dyeing as well as light and wash fastness was achieved. The use of the dendrimer in emulsion form prevents the aggregation of dendrimer. As a result, level dyeing with C.I. DIRECT RED 81 and C.I. DIRECT BLUE 78 dyes as well as satisfactory color strength has been noticed. https://jcst.icrc.ac.ir/article_76039_a2eda0aa0f996c24fee2b996cb70b4db.pdf