电晕处理对涤纶长丝上浆性能的影响

 针对涤纶纱线采用淀粉浆料上浆困难的情况，研究电晕处理对涤纶表面结构和化学组成及不同比例PVA/淀粉浆料上浆性能的影响情况。改变电压和时间对涤纶纱线进行电晕放电处理试验，研究采用不同比例（PVA/淀粉）的浆料时对涤纶纱线上浆性能的影响。研究结果表明，经电晕处理的涤纶纱线上浆后，浆纱耐磨性提高，毛羽降低，综合性能明显改善，涤纶纱线上浆工艺中，少用或不用PVA是可以实现的。

Effect of corona discharge treatment on sizing property of polyester yarns

It is difficult to size polyester yarns with starch. This paper studied the changes of morphological structure and chemical compositions of polyester fibers by corona discharge treatment and the sizing property of polyester yarns when using different proportions of PVA/starch. The corona discharge treatment conditions were varied as a function of volatage and duration of treatment, and the influence of the sizes with different proportions of PVA/starch on the sizing property of the treated polyester yarns. The resuots indicated that affter sizing the abrasion resistance of corona discharge treated polyester yarns is enhanced, the hairiness reduced, and the comprehensive properties significantly improved. It′s possible to size polyester yarns with little or no PVA in the sizing agent.