PRODUCTION OF SYNTHETIC FIBER

摘要

PURPOSE:To produce a synthetic fiber inexpensive in the cost of lubricant and reduced in soot and hardly causing end breakage. CONSTITUTION:This method for producing a synthetic fiber is characterized by applying neat oil (lubricant containing no low-viscosity mineral oil) containing a lubricant agent, an emulsifier and an antistatic agent and having <=40cp viscosity at 50 deg.C and heated to 30-100 deg.C to a spun yarn when a synthetic polymer is melt-spun and a lubricant is applied to the spun yarn and the spun yarn is continuously drawn without winding.