H031制程参数对复合不织布破坏能量之影响.pdf

製程參數對複合不織布破壞能量之影響 The Influences on the Work of Rupture of the Complex Nonwoven Fabrics with Various Process Parameters 劉萬達 葉提舜 馬靖國 *徐展宏 *林佳弘 **孟憲輝 逢甲大學纖維與複合材料學系 *逢甲大學紡織工程研究所 纖維應用與製造實驗室 **中央警察大學鑑識科學學系 原 理 ABSTRACT The mechanical properties of nonwoven fabrics were the 1. 針軋原理： important facts that effected its application. In this study, we 將混棉、開棉、清棉、梳棉後得到的蓬鬆纖網，經成千 used filaments to reinforce the nonwoven fabrics. At first we laid 上萬枚針刺入纖網，刺針上的鉤刺就帶住纖網表面的一些纖 維隨刺針穿過纖網而產生位移，同時由於摩擦作用而使纖網 the filaments on the nonwoven fabrics after being pre-spread by the 受到壓縮，當刺入一定深度後，刺針回升，此時由於鉤刺順 friction roller, and overlapped by the other nonwoven fabrics to 向的緣故，這些纖維脫離鉤刺而以近乎垂直狀態留在纖網 form sandwich structure before needle punching. We used the 內，猶如許多的纖維束釘入纖網，使纖維與纖維間互相緊緊 principles of thermal bonding and needle punching to consolidate 地抱合在一起並使纖網的密度大為提升。 the nonwoven fabrics. We blended the staple fibers with lower 2. 熱黏合原理： melting temperature into high strength polyamide staple fibers to 在熱黏合生產過程中，當熱熔纖維加熱到一定溫度和具 reach the purpose of thermal bonding. We discussed the influences 有一定的壓力時，整個大分子鏈相互滑移，即熱熔纖維軟 on the work of rupture of the complex nonwoven fabrics with 化、熔融，發生黏性流動，再經由冷卻作用使得纖維粘合。 various parameters that included content of filaments, needle 在主體纖維中加入適量熱熔纖維使之與主體纖維接觸，則在 punching density and content of the staple fibers with lower 纖維交叉點處形成黏合點[3] 。 melting temperature. We expected the complex n