한지원사 제조방법 및 한지/면 니트원단의 물리적 특성

Abstract

Recently, interest on wellness of consumers have increased and the market of eco-friendly fashion products in daily life is expanding. Therefore, it is necessary to develop knitwear materials for the textile fashion industries. In this paper, The machinery Hanji paper was slitted in width ranging 1.3 to 4 mm resulting the yarns with different thickness, and then twisted by using two-for-one twisting machine to explore the effect of the number of turns per meter on the mechanical properties of the paper yarn. As a result, it was confirmed that the fineness of the Hanji yarn was dependant upon unit Hanji weight and slitting width. It was increased with increasing Hanji weight and slitting width. Moreover, tenacity and evenness of the Hanji yarn were influenced by the geometrical structure of cellulose fibrils. Higher tenacity was obtained when the cellulose fibrils were arranged along the length axis. The tenacity of the Hanji yarn reached the value corresponding to 70～80% of cotton yarn. However, the break strain of Hanji yarn was 5～7% lower than that of cotton yarn. The knit fabrics were manufactured with Hanji yarn and cotton yarn, and were investigated mechanical properties of single and double knitted fabric. Tensile strength of single and double knitted fabric were appeared to decrease as increasing the softener contents. Total hand value and surface roughness were appeared to good results of as increasing the softener contents. It is expected that Hanji/cotton yarns and their knitwear will contribute to consumer satisfaction and expansion of knitwear market.