title: Combined UV-protecting and reactive printing of Cellulosic/wool blends.
abstract: 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 TiO(2)-NPs along with MCT-βCD, 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>TiO(2)-NPs>4-hyroxybenzopherone≥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.
authors: Textile Research Division, National Research Centre, Dokki, Cairo, Egypt. nabibrahim49@yahoo.co.uk
authors: N A
authors: NA
authors: Ibrahim
authors: E M R
authors: EM
authors: El-Zairy
authors: W A
authors: WA
authors: Abdalla
authors: H M
authors: HM
authors: Khalil
mesh_terms: D000464:Alginates / Q000737:chemistry; D000818:Animals; D001577:Benzophenones / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D032561:Cotton Fiber; D005240:Feasibility Studies; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry; D011327:Printing; D011481:Protective Clothing; D014025:Titanium / Q000737:chemistry; D014466:Ultraviolet Rays / Q000009:adverse effects*; D014935:Wool / Q000737:chemistry*; D015034:Zinc Oxide / Q000737:chemistry; D047392:beta-Cyclodextrins / Q000737:chemistry
chemical_list: D000464:Alginates; D001577:Benzophenones; D006603:Hexuronic Acids; D047392:beta-Cyclodextrins; C024292:4-hydroxybenzophenone; C009495:titanium dioxide; D020723:Glucuronic Acid; D002482:Cellulose; C012024:rayon, purified; D014025:Titanium; D015034:Zinc Oxide