UV-Protective Finishing of Cellulose/Wool Blended Fabrics

Union disperse printing and UV-protecting of wool/polyester blend using a reactive β-cyclodextrin

“…1 discloses that increasing MCT-b-CD concentration from 0 up to 60 g/L in the pretreatment bath results in a dramatic improvement in the depth of the obtained prints, expressed as K/S values-from 7.8 up to 19.8. This dramatic increase in K/S values is a direct consequence of modifying the wool component via grafting of MCT-b-CD molecules onto and within its structure thereby enhancing its ability to pick up and include the hydrophobic disperse dye molecules, nonpolar guest molecules, within the internal hydrophobic hollow cavities, hosting species, in loaded MCT-b-CD during the subsequent printing step according to the following scheme of reactions: (Ibrahim et al, 2007;Szejtli, 2003;Abo-Elola & Ibrahim, 2005).…”

“…UV-protection factor (UPF) was calculated according to the Australian/Newzerland standard (AS/NZS 4399-1996). (Ibrahim, Allam, El-Hossany, & El-Zairy, 2007). A scanning electron microscope (SEM) examination was carried out by mounting the untreated and modified fabric samples on sub with double stick adhesive tape and coated with gold in a S150A sputler coater unit (Edwards, UK), the gold film thickness was 150 Å, then viewed in a JEAOL JXA-840A electron probe microanalyses.…”

Performance assessment of fragrance finished cotton with cyclodextrin assisted anchoring hosts

“…Many novel techniques such as grafting with cross-linking agents and use of resin binders has been investigated to fix β-CD to fibres like cotton, wool, polyester, polyamide and polyacrylonitrile (Andreaus 2010;Cabrales et al 2012;Ciobanu et al 2013;Dehabadi et al 2013;Hebeish and El-Hilw 2001;Ibrahim et al 2007;Martel 2002a, b;Sricharussin et al 2009;Velaz et al 2007;Voncina and Marechal 2005). Resins such as epicholorohydrin had been used to fix β-CD to cellulose (Hebeish and El-Hilw 2001) and polyester (Ciobanu et al 2013).…”

Application of Cyclodextrins in Textile Dyeing

“…According to the references the most promising approach to bond cyclodextrin onto textile fibres is the modification of cyclodextrins with trichlorotriazines to prepare monochlorotriazinyl-cyclodextrin (Reuscher et al, 1996;Grechin et al, 2007). An article prepared by Ibrahim and co-workers (Ibrahim et al, 2007) reports new trials for improving the UV protective properties of cotton/wool and viscose/wool blends via incorporating certain reactive additives, such as reactive monochlorotriazinyl--cyclodextrin, in the easy care finishing formulations, followed by subsequent treatment with copper-acetate or post-dyeing with different classes of dyestuffs (acid, basic, direct and reactive). The post-dyeing of the blends was carried out at pH 3, at a 1:20 material to liquor ratio by conventional procedures in a Laundrometer with 3%owf.…”