Method for preparing Textured Nylon 66 multifilament yarn

摘要

The present Invention relates to a process for preparing a multi filament Yarn of nylon 66 textured has a relative viscosity of about 50 to 80,That involves stretching a textured thread feeding Set approximately 15 to 250 and elongation of about 70 to approximately 100 percent at a temperature of approx.Imadamente approximately 200 to more than 400 degrees Fahrenheit, to provide a textured Yarn elongation of less than about 35 percent.The process is characterized in that the speed texturing is at least approximately 900 meters per minute,And the food is a thread of nylon 66 Polymer containing a small amount of a bifunctional monomer Polyamide or a non reactive Additive capable of hydrogen bond with the polymer dAnd nylon 66, and the thread has a drawing tension in g / D of at least approximately less than approximately 0.8 and 1.2.