Study on chemical modification and dyeing properties of jute fiber

Abstract

Glycidyl trimethyl ammonium chloride (Glytac) was used as a modifier for surface modification of jute fiber. Modifying effect factors such as Glytac concentration, sodium hydroxide concentration, temperature, and time were optimized as follows: Glytac concentration, 60 g/L; sodium hydroxide concentration, 20 g/L; temperature, 60°C; and treatment time, 60 min. After the Glytac treatment, the zeta potential value on the fiber surface increased over a pH range of 3.5–9.5. Compared to the raw jute fibers, the modified jute fibers could be dyed with reactive dye using a small amount of salt and alkali and had higher K/S values under the same dye concentration range of 0.5–8.0% (o.w.f.). Furthermore, the dyed Glytac-treated jute fibers had higher exhaustion, fixation, and total fixation and better washing fastness and dry rubbing fastness than those of raw jute fibers.

Keywords:

• jute fiber
• dyeing
• modification
• quaternary ammonium salt

Acknowledgements

This research was funded by the National Supported Planning Project of Science and Technology (2007BAE41B00). It was also funded by the Innovation Foundation for the Ph.D. candidate of Donghua University (DHU) (105–06-0019057).