异形(即非圆形)纤维是近年来在化纤纺丝方面出现的一项新技术。由于异形纤维具有良好的膨松性、透气性、吸湿性和保暖性;更高的耐磨性和较好的抗起球性;有钻石般闪光或蚕丝般的光泽(因截面形状不同而异);以及良好的抗污能力和覆盖能力,因此,日益引起各国有关部门的重视。为了加速我国合成纤维的发展,更好地满足人民生活和外贸的需要,近两三年来,我国不少地区相继展开了研究试制。轻工部对这项新技术极为重视。继去年三月 Abnormal (ie, non-circular) fibers have emerged as a new technology in chemical fiber spinning in recent years. As shaped fiber with good bulk, breathability, hygroscopicity and warmth; higher wear resistance and better resistance to pilling; a diamond-like flash or silk-like luster (due to cross-sectional shape varies ); As well as good anti-fouling ability and covering ability, therefore, it increasingly attracts the attention of relevant departments of various countries. In order to speed up the development of synthetic fibers in our country and better meet the needs of people’s life and foreign trade, in recent two or three years, many areas in our country have successively conducted research and trial production. The Ministry of Light Industry attaches great importance to this new technology. Following last March