作　　者： ; ; ;

机构地区： 华南理工大学轻工与食品学院制浆造纸工程国家重点实验室

出　　处： 《造纸科学与技术》 2013年第1期73-78,86,共7页

摘　　要： 直接染料是现在应用最广的一种染料。本文通过对比染色前后纤维的热稳定性,纤维的物理性能,成纸的相关性质来研究直接染料的作用机理,对纤维性能的影响以及探讨其在造纸工业中的应用。研究发现直接染料对于纤维的长度、卷曲与扭结指数变化不大,纤维的宽度明显变大,成纸的抗张强度略微减小、撕裂度变大。从以上的物理性能的研究发现直接染料作用后的纤维完全可以作为造纸过程的示踪物,用于进行造纸过程中的脱墨,打浆等工艺过程的动态研究。 Direct dye is the most popular dye used in industry. In this study, thermal stability, physical character and properties of paper are compared between dyed pulp and undyed pulp. And the application of direct dye in pa- per industry is also discussed. The length,curl index and kink index of dyed fiber are close to those of undyed fi- ber, while the width of dyed fiber is much larger. Tensile index of paper is slightly lower than that of no dyeing pa- per, but dyeing paper tearing index is higher. Based on the study of properties of the dyed fiber, it can be conclued that the fiber dyed with direct dye can be used as fiber tracer in process of papermaking, such as refining, deinking ere, to do the dynamic study of the processes.

关 键 词： 直接染料 纤维形态 成纸强度 纤维示踪物

领　　域： [轻工技术与工程]