꼬임수에 따른 한지테이프/필라멘트 합연사의 물성과 편성물의 특성 평가

Abstract

Although the excellent property and unique texture of Hanji paper yarn, the defects such as its low strain, rough surface and unevenness lead much friction with knitted needle and high tension to the paper yarn in knitting process, resulting in the yarn breakage and laddering or boring appearances to knitted fabric. In order to improve the knitting ability of Hanji paper yarn, in the present work, the plied yarn by combining Hanji tape yarn(13g/m2, 1.5mm) and nano silver filament yarn were prepared with different yarn counts and twist numbers(400∼900tpm). The tensile property and surface structure of the plied yarn were evaluated. The plied yarns exhibited the maximum breaking stress at a twist number 600∼700tpm, whereas the Hanji paper yarn showed the maximum value at the 800tpm. Also, yarn irregularity, yarn defective(IPI) and hairiness of the plied yarn were studied, and then compared with surface structure of the plied yarn. It was clear that the irregularity, IPI and hairiness of plied yarn, compared to that of commercial cotton yarn, were much lower at the 600∼700tpm. Since the plied yarn was unstable and rough structure at the twist number of 400∼500tpm, amicable knitting process was nearly impossible. However, the plied yarn showing maximum breaking stress showed relatively good knitting ability and excellent surface appearances to the knitted fabric.