키토산 전처리가 감즙염색 면직물의 염색성과 항균성에 미치는 효과 = The Effects of Chitosan Pretreatment on the Dyeabilities and Antibacterial Activities of Persimmon Juice-Dyed Cotton Fabrics

다국어 초록 (Multilingual Abstract)

Environmentally and human compatible chitosan were pretreated on cotton fabrics which were then dyedwith 100% persimmon juice. The chitosan concentration was 1% and the chitosan types were high molecularweight chitosan (1980cps), low molecular weight chitosan (18cps), chitosan oligomer and water solublechitosan. The properties of the fabric surfaces, the dyeabilities, the color fastnesses, the antibacterial activities,the strengths, the elongations and the drape stiffnesses were evaluated. The properties of thechitosanpretreated, persimmon juice-dyed cotton fabrics (CLP) were compared to those of the untreated (CN),chitosan treated (CL) and persimmon juice-dyed fabrics (CP). The results were as follows. The fibers extruded
from the surface of CN decreased on CP. The air between the fibers within CN were substituted by chitosan
solution or persimmon juiceand decreased within CLP according to SEM observations. The effects of chitosan
treatment, the chitosan molecular weights and the degrees of deacetylation of chitosan on the dyeabilities of the
persimmon juice-dyed cotton fabric were not distinct. The curing after chitosan padding improved the
dyeabilities of CLP compare to noncuring. The strengths of CP decreased and those of CL increased,
compared to those of CN. The strengths of CLP were greater than those of CP. The elongations of CP and
CL were greater than those of CN. The strengths and elongations of CLP were greater than those of CN. The
chitosan treatments improved the strengths but not the elongations. The drape stiffnesses of CL, CP and CLP
were greater than those of CN. The antibacterial activities of chitosanpretreated, persimmon juice-dyed cotton
fabrics against Staphylococcus aureus were increased by more than 98% by persimmon juice.

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