FUNCTIONALITIES OF CAR SEATS WOVEN USING NATURALLY-DYED HANJI YARN

Abstract

This study aims to develop eco-friendly car seats using hanji yarn. To this end, fabricsfor car seats were woven with polyester yarn as the warp and 100% hanji yarn dyedwith gallnut, acacia, mulberry leaves and indigo (Indigofera tinctoria) as the weft. Thefollowing conclusions were drawn after evaluating the anti-fogging properties, odor,antimicrobial activity, and UV protection effects of the fabrics. First, all four types ofnaturally-dyed hanji fabrics showed excellent anti-fogging properties at 10 percent orless, based on the MS341-24 fogging standard. Second, for all four types of naturallydyedhanji fabrics, only a weak degree of odor was detected with a scale of 3.0 whendry, and no odor was identifiable with a scale of 2.5 when wet, indicating that it doesnot induce disorders such as respiratory difficulties. Third, the hanji fabrics dyed withgallnut and indigo exhibited excellent antimicrobial effects against Staphylococcusaureus ATCC 653B at 99.9%. In addition, against Klebsiella pneumoniae ATCC4352,hanji fabrics dyed with gallnut, acacia and indigo also demonstrated remarkableantimicrobial effects at 99.9%, 99.9%, and 98.6%, respectively. Finally, all four types ofnaturally-dyed hanji fabrics displayed excellent UV protection with a Sun ProtectionFactor (SPF) of 50+.