bright fiber
1.The production of bright PET staple fiber on the direct spinning mach-ine which was imported with a output of 15kt/a is described. The factors moredifficut for spinning bright fiber are discussed, indicates that the bright fiberwith high quality is obtained if having the proper selection of spinnerets aswell as the slight adjustments of the key process parameters such as spinningtemperature, quenching conditions.
6.The technical adaptation, production cost and the main components of differential PET staple fiber were studied, using 1.33 dtex bright PET staple fiber specially for sewing thread as the research object, based on technical accoutrement and capacity matching from the view of chemical fiber formation techniques and economic principle.

