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Lipase treatment of polyester fabrics

Authors
Kim, Hye RimSong, Wha Soon
Issue Date
Dec-2006
Publisher
KOREAN FIBER SOC
Keywords
polyethylene terephthalate (PET) fabric; lipase; enzyme treatment; alkaline treatment; moisture regain; non-ionic surfactant; activator
Citation
FIBERS AND POLYMERS, v.7, no.4, pp 339 - 343
Pages
5
Journal Title
FIBERS AND POLYMERS
Volume
7
Number
4
Start Page
339
End Page
343
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/15038
DOI
10.1007/BF02875764
ISSN
1229-9197
1875-0052
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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