Combined UV-protecting and reactive printing of Cellulosic/wool blends

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• 作者：N.A. Ibrahim^a ; ^{nabibrahim49@yahoo.co.uk} ; E.M.R. El-Zairy^b ; W.A. Abdalla^a ; ^b ; H.M. Khalil^b
• 关键词：Cellulosic/wool blend ; MCT-¦ÂCD ; Na-alginate ; Reactive printing ; UV-absorbers ; Nano-metal oxides ; UV-protection
• 刊名：Carbohydrate Polymers
• 出版年：2013
• 出版时间：15 February, 2013
• 年：2013
• 卷：92
• 期：2
• 页码：1386-1394
• 全文大小：1113 K

文摘

A novel approach for attaining reactive cotton/wool and viscose/wool prints with outstanding UV-protection functions was achieved via inclusion of certain UV-absorbers namely 4-hydroxybenzophenone and UV-SUN^? or UV-blockers like ZnO-NPs and TiO₂-NPs along with MCT-¦ÂCD, as a reactive additive, in the printing paste formulation using Na-alginate as a thickening agent. Experimental results reveal that the inorganic UV-blockers exhibit better UV-protection functions compared with the used UV-absorbers, and the improvement in the imparted UV-protection capacity follows the decreasing order: ZnO-NPs > TiO₂-NPs > 4-hyroxybenzopherone ¡Ý UV-SUN^? ? none > untreated. The enhancement in UV-protection functionality is governed by the type of substrate, cotton/wool > viscose/wool, extent of modification and loading of the used nano-metal oxides or organic absorbers onto the fabric surface as well functionality and ability of the used reactive dyes to absorb the hazardous UV-B radiation. The obtained functional prints exhibited outstanding UV-protection efficiency even after 15 washing cycles.