阳离子易染聚酯纤维的碱减量处理  

Alkaly deweighting of easy cationic dyeable polyester fiber

作　　者：吴建华[1] 

机构地区：[1]浙江轻纺职业技术学院,浙江宁波315211

出　　处：《纺织学报》2005年第2期89-91,共3页Journal of Textile Research

摘　　要：介绍了染色改性的聚酯纤维 (ECDP)的碱减量。对碱处理时碱浓度、浴比、处理温度及时间等因素与减量率的变化关系进行了讨论 ,并指出了减量率对ECDP纤维的分子量、单丝强力以及阳离子染料的上染率的影响。结果表明 :ECDP在进行碱减量处理时 ,减量率较常规涤纶纤维FDY显著增加 ;减量率增加 ,纤维强度呈线性下降 ,ECDP纤维较常规涤纶FDY下降的幅度更大 ,且ECDP纤维分子量急剧下降 ;减量率增加 ,影响了阳离子染料对ECDP纤维的上染率。Experiments on the alkaly deweighting of easy cationic dyeable polyester(ECDP) were introduced.Investigations on the relationship between the deweighting ratio and the concentration of NaOH,the treating temperature and time,as well as the liquor ratio were carried out.Influences of molecule weight of ECDP fiber,yarn strength,the percentage of dye exhaustion to the deweighting ratio were indicated.In the reduction of weight with base process,the deweighting ratio of ECDP fiber was higher than FDY fiber with the same concentration of NaOH,the treating temperature and time,as well as the liquor ratio.As the deweighting ratio increase,the fiber yarn strength has been lost in linear function.ECDP fibers compare to FDY fibers in the same deweighting ratio,yarn strength of it decrease quickly; ECDP fiber hydrolysis rate is quicker than common polyester fiber;The molecule weight of ECDP fiber is decrease quickly.The percentage of dye exhaustion is lower when the deweighting ratio increase.

关 键 词：EcDP纤维 碱减量 减量率 

分 类 号：TS195.523[轻工技术与工程—纺织化学与染整工程]