荧光腈纶纱线的荧光性能

针对荧光腈纶纱线经过普通工艺染色后荧光效果大大降低的问题，以荧光腈纶纱线为主要研究对象，分析染色工艺因素、三原色染料的单色染色以及荧光增白剂的加入对其荧光效果的影响。通过荧光反射率测试，确定纱线最佳染色工艺为染色温度85 ℃，染色时间75 min，染色pH值3.5；同时通过荧光光谱分析，研究纱线染色工艺与荧光性能的关系。试验结果表明，通过优化染色工艺并筛选合适的染料能获得具有较好荧光效果的有色荧光腈纶纱线，加入荧光增白剂后有助于进一步提高荧光黄10GFF和艳红X-5GN染色纱线的荧光效果。

Fluorescent property of fluorescent acrylic yarn

In order to deal with the reduced fluorescent effect of fluorescent acrylic yarn after dyeing with common process, the fluorescent acrylic yarn was taken as the main research object. The influence of dyeing process factor, homochromy dyeing of tri-chromatic dyes and adding fluorescent whitening agents on the fluorescent effect of yarn was analyzed. The optimum dyeing process of fluorescent acrylic fiber was obtained by testing fluorescent reflectivity as follows: dyeing at 85℃ for 75 min with pH value = 3.5. In addition, the relationship between dyeing process and fluorescent property of fluorescent acrylic yarn was studied by analyzing its fluorescent spectra. The result showed that fluorescent acrylic yarn dyed with optimum process and appropriate dyes has favorable fluorescent effect. Fluorescent whitening agent can further improve the fluorescent effect during the combination dyeing process with Fluorescent Yellow 10GFF or Brilliant Red X-5GN.