The use of low-temperature plasmas in wool finishing

Influence of corona discharge and chitosan surface treatment on dyeing properties of wool

“…However, even after the shortest CD treatment (40 s), the wool sample shows a significant improvement of wettability which is progressively enhanced with prolonged CD treatment time (Table IV). The increased wettability can be attributed to the oxidation of F‐layer and to newly formed oxygen polar groups 42. Changes of chemical composition of CD treated samples (incorporating oxygen containing functional groups to the fiber surface, Table III), induce the increase of surface free energy and fiber‐water interaction, resulting in relatively quick water absorption and capability to transport liquids through pore system, this being a prerequisite for effective dyeing of textile.…”

The effect of an innovative atmospheric plasma jet treatment on physical and mechanical properties of wool fabrics

“…The application of LTP technologies on wool was extensively studied (Rakowski, 1991;Sadova, 2006;Thomas, 2007); researches mostly dealt with improving finishing performance of wool such as printing (Ryu et al, 1991) and dyeing (Jocic et al, 2005;Kan, 2006;Masakuni and Inagaki, 2006;Shin et al, 1999), strictly related to wettability improvement (Sun and Stylios, 2006;Wang and Qiu, 2007), shrinkproofing (Erra et al, 1999;Hesse et al, 1995) and anti-pilling (Rombaldoni et al, 2008a). To guarantee a successful plasma treatment, a number of conditions has to be met; the process evenness is one of the most important parameters to be taken into account, as well as the treatment effectiveness.…”

Fluoropolymer coated alanine films treated by atmospheric pressure plasmas − In comparison with gamma irradiation

“…EPR (ESR) has been used for characterization of polymeric materials after plasma processing . Here, plasma modification effects are considered to happen at material surfaces or within a thin surface layer of less than 1 μm depth . However, in the present work, preliminary experiments for plasma treatment of the fluoropolymer coated alanine (FCA) films indicated that both fluoropolymer surfaces and the bulk alanine were modified after the treatment.…”

“…[27][28][29][30][31][32] Here, plasma modification effects are considered to happen at material surfaces [27,29] or within a thin surface layer of less than 1 μm depth. [32] However, in the present work, preliminary experiments for plasma treatment of the fluoropolymer coated alanine (FCA) films indicated that both fluoropolymer surfaces and the bulk alanine were modified after the treatment. When plasma processing is used for surface treatment, changes of bulk properties should be avoided.…”