Employing ionic liquids to deposit cellulose on PET fibers.
Several ionic liquids are excellent solvents for cellulose. Starting from that finishing of PET fabrics with cellulose dissolved in ionic liquids like 1-ethyl-3-methyl imidazolium acetate, diethylphosphate and chloride, or the chloride of butyl-methyl imidazolium has been investigated. Finishing has been carried out from solutions of different concentrations, using microcrystalline cellulose or cotton and by employing different cross-linkers. Viscosity of solutions has been investigated for different ionic liquids, concentrations, cellulose sources, linkers and temperatures. Since ionic liquids exhibit no vapor pressure, simple pad-dry-cure processes are excluded. Before drying the ionic liquid has to be removed by a rinsing step. Accordingly rinsing with fresh ionic liquid followed by water or the direct rinsing with water have been tested. The amount of cellulose deposited has been investigated by gravimetry, zinc chloride iodine test as well as reactive dyeing. Results concerning wettability, water up-take, surface resistance, wear-resistance or washing stability are presented.
Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstraße 1, 47798 Krefeld, Germany; University of Duisburg-Essen, Physical Chemistry and, Center for Nanointegration Duisburg-Essen, CENIDE, Universitätsstraße 2, 45141 Essen, Germany; Reutlingen University-Faculty of Textiles & Design, Alteburgstraße 150, 72762 Reutlingen, Germany. Electronic address: torsten@textorsten.de.
Torsten
T
Textor
Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstraße 1, 47798 Krefeld, Germany. Electronic address: leonie.derksen@dtnw.de.
Leonie
L
Derksen
Deutsches Textilforschungszentrum Nord-West gGmbH, Adlerstraße 1, 47798 Krefeld, Germany; University of Duisburg-Essen, Physical Chemistry and, Center for Nanointegration Duisburg-Essen, CENIDE, Universitätsstraße 2, 45141 Essen, Germany. Electronic address: gutmann@dtnw.de.
Jochen S
JS
Gutmann
D002482:Cellulose / Q000737:chemistry / Q000378:metabolism*; D007093:Imidazoles; D052578:Ionic Liquids / Q000737:chemistry* / Q000378:metabolism*; D011093:Polyethylene Terephthalates / Q000737:chemistry*; D012997:Solvents; D013696:Temperature; D013783:Textile Industry / Q000379:methods*; D014783:Viscosity
D007093:Imidazoles; D052578:Ionic Liquids; D011093:Polyethylene Terephthalates; D012997:Solvents; D002482:Cellulose
Cellulose; Composite fibers; Finishing; Ionic liquids; Polyethylene terephthalate; Reactive dyeing