Stain Repellent Finishing on Fabrics

Abstract

Stain repellent textiles are still a strong demand from textile industry as well as customers. Therefore, this work deals with an improved oleophobic treatment of PET textiles. Two polyester fabrics with different textile structures were examined, which requires a plasma treatment such as Ar/O2 mixture enabling a good penetration into the textile structure. Using plasma activation prior to the wet‐chemical treatment the oil repellency grade is enhanced by at least one grade.

Contact angle determination on plasma‐treated poly(ethylene terephthalate) fabrics and foils

“…However, the modified polar surface is not stable, since aging due to reorganization processes was obtained. Nevertheless, capillary rise and suction of the plasma‐treated PET fabric could be observed over a period of at least 8 days, which is of importance for subsequent processing steps such as coating, lamination, coloration, or other wet‐chemical processes 33, 34. Hence, plasma activation using nonpolymerizable gases is appropriate for cleaning and activation of textiles to improve subsequent process steps such as lamination or coating.…”

Properties, performance and associated hazards of state-of-the-art durable water repellent (DWR) chemistry for textile finishing

“…Therefore these groups can form highly packed and extremely hydro-and oleophobic polymer domains (Wang et al, 1997) that point outwards from the fibre surface and result in excellent liquid repellency. Since the rigid rod-like structures differ in their physicochemical behaviour from the relatively flexible alkyl chains in hydrocarbon and silicone DWR polymers, fluorinated DWR polymers can also repel non-polar liquids (Hegemann, 2005). The high packing of per-and polyfluoroalkyl side chains, caused by fluorophilic interactions (Skotheim, 1997), strongly depends on the length of the perfluoroalkyl moieties (see Fig.…”

Plasma Treatment in Textile Industry

“…argon) and (ii) reaction of these radicals with unsaturated monomers . As can be observed in Table , numerous studies with different plasma discharges were conducted with the objective of increasing the hydrophobicity of various textile fibres, such as polyesters (PET), polyacrylonitrile (PAN), polypropylene (PP), cotton, cellulose, cellophane, silk, poly(lactic acid) (PLA) and cotton/polyester blends . In particular, the increase in fabric hydrophobicity using plasma with polymerizing fluorocarbon gases such as hexafluoropropylene, fluorodecyl acrylate, hexafluoroethane and tetrafluoromethane were deeply investigated.…”