日前,中国石化洛阳分公司熔体直纺多孔异型细旦涤纶长丝开发新技术项目顺利通过了中国石化科技开发部的成果鉴定。鉴定结果表明,该项技术具有创新性,达到了国际先进水平。熔体直纺多孔异型细旦涤纶长丝开发项目,重点研究了高喷丝孔密度的异型截面细丝旦涤纶长丝的制备技术。它根据喷丝孔密度、纤维截面形态特征、长丝不匀率及力学性能等要求,综合运用理论分析、试验测试与计算机数值模拟相结合 Recently, Sinopec Luoyang Branch melt direct spinning porous shaped fine polyester filament yarn development of new technology projects passed the Sinopec Science and Technology Development Department of the results of appraisal. Identification results show that the technology is innovative, reached the international advanced level. Melt-spinning porous special-shaped fine polyester filament yarn development project, focusing on the high density of spinneret cross-section thin filament denier polyester filament production technology. It is based on the density of spinneret holes, fiber cross-section morphology, filament irregularity and mechanical properties and other requirements, the integrated use of theoretical analysis, test and test combined with computer numerical simulation