Cutinase treatment of cotton fabrics

Effects of Treatments with Two Lipolytic Enzymes on Cotton/Polyester Blend Fabrics

“…1> shows the weight loss of cotton/polyester blend fabrics after cutinase and lipase treatment. Based on the previous work (Lee & Song, 2010;Lee et al, 2008Lee et al, , 2009, calcium chloride was found to be a better auxiliary compared to non-ionic surfactants for cotton fabrics in case of both cutinase and lipase treatments, while non-ionic surfactants work well with polyester fabrics in case of cutinase treatment. However, it did not affect lipase treatment.…”

“…The treatment conditions of cutinase on cotton/polyester blend fabrics were pH of 9.0, temperature of 50 o C, cutinase concentration of 100% (o.w.f. ), and treatment time of 60 min (Lee & Song, 2010;Lee et al, 2009). The treatment conditions of lipase on cotton/polyester blend fabrics were pH of 4.2, temperature of 50 o C, lipase concentration of 100% (o.w.f.…”

“…Cotton/polyester blend fabrics were treated with lipase and cutinase at 150 rpm using a shaking water bath (BS-21, Jeio Tech., Korea). The concentration of activators such as calcium chloride and Triton X-100 was determined based on the previous works (Lee & Song, 2010;Lee et al, 2008Lee et al, , 2009. From studies, the most efficient range calcium chloride was used over the concentration range 5 and 10 mM for lipase treatment, and 50 to 70 mM for cutinase treatment which are the most efficient ranges from the previous studies.…”

“…One of the most popular methods is an enzymatic treatment with four primary advantages: (1) it reduces water pollution because enzymes react at pH levels close to neutral; (2) it reduces fiber damage because the enzymes react with specific substrates; (3) it reduces the reaction time because of increased reaction rate; and (4) it saves energy because the enzymes react at low temperatures (40-60 o C) (Lee & Song, 2010;Lee et al, 2008Lee et al, , 2009. With these advantages, enzymatic processing have been applied to the textile industry especially natural fibers as shown in <Table 1>.…”

“…6,254,645B1, 2001;Vertommen et al, 2005;Walter et al, 1995;Yoon et al, 2002). Especially, Triton X-100 helps reduce penetration time of cutinase and lipase when enzymatic treatment, and Ca 2+ ions helps to dissolve the proteins of enzyme into the treatment solution, thereby increasing the enzymatic activity (Lee et al, 2009). The aim of this study is to apply cutinase and lipase treatment for cotton/polyester blend fabrics to improve the hydrophilicity such as moisture regain and dyeing properties of polyester fiber, maintaining advantages of cotton fiber.…”