Influence of EDTA complexing agent on biopreparation of linen fabric

Effects of Atmospheric Plasma Pretreatments on Pectinase Efficiency in Bioscouring of Linen Fabrics

“…The scouring process using alkaline solutions removes almost all the impurities from the fabric and produces hydrophilic fibre surface. Bioscouring is an alternative process, in which hydrolytic enzymes, such as pectinases, xylanases and cellulases are used for destroying and removing the undesired components from the outer layers of cellulosic fibres and thus producing a hydrophilic fibre surface [2][3][4][5][6][7][8].…”

Cost-effective scouring of flax fibers using cellulase-free xylano-pectinolytic synergism from a bacterial isolate

“…EDTA modifies the substrate structure by removing the calcium ions from the cross bridges that link the macromolecules in pectin to one another or pectin to other polysaccharides, therefore when applied simultaneously with the enzyme seems to assist in the creation of free and accessible areas for the enzyme present (Losonczi et al, 2005). Many researchers confirmed that the addition of EDTA into the enzyme solution during bioscouring or during microbial-retting accelerated the degree of hydrolysis significantly (Csiszar et al, 2004;Akin, 2013). Dong et al (2015) also used EDTA (4 g/l) during the biological scouring of flax roves.…”

“…Ossola and Galante (2004) performed the enzymatic scouring of flax fibers at 55 C for 30 min, at a material to liquor ratio of 1:10 (w/v) in the presence of a surfactant (1 g/l) and mild chelator (2 g/l) while Abdel-Halim et al (2010) have done the enzymatic scouring of flax fabric for 2 h at 60 C using a material to liquor ratio of 1:20 (w/v) in the presence of a surfactant (0.1%). Csiszar et al (2004) scoured linen fabric with pectinase at pH 5.0 (50 mM acetate buffer) for 1 h at 50 C, 40 rpm and material to liquor ratio of 1:50 (w/v) in the presence of nonionic surfactant (1 ml/l). Sharma et al (2005) used the enzyme formulations containing pectinase, xylanase and laccase for the enzymatic treatment of flax fibers at the roving stage for 3 h at 40 C. EDTA at a concentration of 3 mM was sufficient for the effective removal of impurities (Fig.…”

Effects of enzymatic treatments on surface morphology and chemical structure of linen fabrics

“…It was reported that improved yarn evenness, sorption performance, and wettability have been achieved by applying enzymatic treatments to greige linen yarn or fabrics. After common bleaching and dyeing, enzyme treated samples had approximately same results on WI and K/S values but with better physical properties due to lower weight loss compared with alkaline‐treated samples 7–14. On the other hand, it is clear that the changes in chemical properties and surface structure have not been reported enough, when the literature have been checked out carefully 15–17…”