针刺加工对橘瓣双组分纺粘水刺布过滤性能的影响  

Effect of needle processing on filtration performance of segmented pie bicomponent spunbond-spunlace nonwovens

作　　者：钱幺 刘凡[1] 钱晓明[1] 

机构地区：[1]天津工业大学纺织学院,天津300387

出　　处：《天津工业大学学报》2017年第4期38-42,共5页Journal of Tiangong University

基　　金：国家科技支撑计划项目(2014BAE09B00);天津市应用基础与前沿技术计划项目(16JCZDJC36400);天津市科技计划项目(14TXGCCX00014)

摘　　要：为了使更多的橘瓣原纤裂解为超细纤维,从而提高橘瓣双组分纺粘水刺布的过滤性能,采用针刺工艺对多层低克重(40 g/m^2)的PET-PA6橘瓣双组分纺粘水刺布进行加工复合,制备了4种不同克重的针刺橘瓣双组分纺粘水刺非织造布.测试针刺加工前后纺粘水刺布的过滤效率和过滤阻力,与40 g/m^2的橘瓣双组分纺粘水刺叠层布、不同克重的原橘瓣双组分纺粘水刺布进行对比.结果表明:针刺加工后,橘瓣原纤大量开裂,针刺橘瓣双组分纺粘水刺非织造布的过滤效率有所提高,而过滤阻力明显降低,克重为160 g/m^2时,与纺粘水刺布相比,针刺超纤布的过滤阻力降低约2/3.说明针刺加工为提高橘瓣双组分纺粘水刺布过滤性能的方法之一.In order to make more segmented pie fibrils cleaved into superfine fibers, thereby improving the filtration performance of segmented pie bicomponent spunbond-spunlace nonwovens, multi-layer low-weight （40 g/m2） PET-PA6 segmented pie bicomponent spunbond-spunlace nonwovens were processed by needle-punching, and four kinds of different weight segmented pie bicomponent spunbond-spunlace nonwovens with needle-punched were prepared. The filtration efficiency and resistance of segmented pie bicomponent spunbond -spunlace nonwovens before and after acupuncture were tested. Filtration performances of acupuncture nonwovens and laminated spunbond-spunlace nonwovens with the 40 g/m2, segmented pie bicomponent spunbond-spunlace nonwovens in different gram weight were compared. The results showed that the splitting rate of segmented pie fibril was high after acupuncture, the filtration efficiency of the nonwovens was improved, and the resistance of the filter decreased significantly 曰 the filtration resistance of superfine fiber nonwovens with acupuncture decreased by about 2/3 compared with spunbond -spunlace nonwovens with 160 g/m2. It illustrates needle processing is a method to improve filtration performance of segmented pie bicomponent spunbond -spunlacenonwovens.

关 键 词：纺粘水刺布 双组分 针刺加工 过滤性能 开纤 超细纤维 橘瓣 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]