【作者】 王琳；

【导师】 左保齐；

【作者基本信息】 苏州大学 ， 纺织工程， 2007， 硕士

【摘要】 PTT纤维是一种引人注目的新型聚酯纤维,具有较好的延伸性、优良的弹性回复性、良好手感、易染色、抗污性佳等独特优点,具有广阔的纺织应用前景。由于PTT独特的分子结构,比常规涤纶更适于开发手感柔软、弹性优良的针织面料,以满足人们对于服装舒适弹性的需要。本文测试分析了PTT短纤维的拉伸、应力松弛性能,PTT长丝纱与PTT/PET复合长丝纱的强伸、回弹性能、残余扭矩和摩擦系数。根据纤维性能,与工厂联合探索PTT针织物的研制,优化织造、染整工艺,开发出了PTT双罗纹、纬平针、集圈、衬垫纬编针织面料。将组织结构相近的PTT针织物与PET针织物进行性能测试和对比分析。PTT织物的断裂伸长率较大,耐磨性较好,定伸长条件下的弹性回复率较高,悬垂性较好,抗起毛起球性能较好;PET织物的断裂强力较高,顶破强力较高,折痕回复性能较好;二者的光泽度较高,色牢度较好,透通性较差,无明显差异。不同原料、不同组织结构PTT针织物的力学性能、外观保持性能、舒适性能有所不同。更多还原

【Abstract】 PTT (polytrimethylene terephthalate) fiber as one of new noticeable polyester fibers which has good extensibility, high elastic resilience, soft handle, good dyeability and resistance to soiling, is widely used as new textile material with broad prospect. Due to the unique molecular structure of PTT, it is more appropriate for developing knitting fabrics with excellent handle and elasticity than PET to meet the demand of people.Tensile and stress relaxation of PTT staple fibres and tensile, elastic recovery, residual torque and friction coefficient of PTT and PTT/PET multifilament yarns were tested and analyzed. According to the propertyes of materials, optimized knitting, dyeing and finishing process were chosen, and interlock rib, weft plain, tuck stitch and laid in stitch PTT fabrics were developed with the help of the factories.The properties of PTT knitting fabrics were tested and compared with PET knitting fabrics of the similar structural parameters. PTT knitting fabric has higher breaking elongation, better wear-resistance, higher elastic recovery percentage under the certain elongation, better drapability and anti-pilling; PET knitting fabric has higher breaking strength and bursting strength and better crease recovery; Both of them have good glossiness and color fastness but poor permeability. The properties of mechanics, appearance and comfort of PTT knitting fabrics which have different material or structure are different.更多还原