Take the jute fiber blended yarn with fine denier viscose fiber and tencel fiber for example,according to the process testing and experiment,some factors affecting the jute fiber blended yarn\'s quality such as fiber properties,spinning process are analyzed,and the measures that could improve the yarn quality were discussed.

The recent development of disperse dyes was summarized, including their use on the traditional Polyesterfiber and Microfiber, the use in Ink -jet Printing disperse dyes and the Dye Diffusion Thermal Transfer were also introduced.

The development of superfine acrylic fiber spinning technology;

The paper introduces the production of the fine denier fibers and th e ultrafine denier fibers inside and outside our country as well as the status q uo of their development.