Lipase treatment of polyester fabrics |
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| Authors: | Hye Rim Kim Wha Soon Song |
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| Institution: | 1. Department of Clothing & Textiles, Sookmyung Women’s University, 140-742, Seoul, Korea
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| Abstract: | The aim of this paper is to improve moisture regain of PET fabrics using a lipase treatment. Effects of nine lipase sources,
lipase activator and nonionic surfactant on moisture regain of PET fabrics are examined. Moisture regains of lipase-treated
samples improve by two times in average compared with untreated and buffer-treated samples. Alkaline treatment creates larger
pitting by more aggressive attack into fiber which is proved by SEM and water contact angle measurement. Moisture regain by
alkaline treatment (0.568 % ± 0.08) does not improve. However, lipase-treatment (L2 treatment) improves moisture regain up
to 2.4 times (1.272 % ± 0.05). Although lipase treatment is more moderate than alkaline treatment, lipase hydrolysis on PET
fabrics improves moisture regain, efficiently. K/S values improved confirm that carboxyl and hydroxyl groups are produced
on the surface of PET fabrics by lipase hydrolysis. Moisture regain and dyeability improve by lipase hydrolysis on PET fabrics. |
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