method for producing a flame retardant dyed polyester fiber and flame retardant flame retardant dyed polyester fiber, using the same

摘要

Light resistance and excellent durability, the resin composition required for the flame retardant dyed polyester fiber that can be colored in various colors and flame-retarding method has been desired. Flame-retardant polyester resin composition comprising a flame retardant containing a nitrogen-based compound, a colorant, a thermoplastic polyester resin - inorganic phosphorus is at least one selected from the group consisting of phosphazenes ammonium polyphosphate and melamine polyphosphate A fiber obtained by melt spinning, based on the total weight of the polyester resin composition, wherein the inorganic phosphorus - the content of nitrogen-based compound is 0.1 to 12 wt%, content of the coloring agent I provide a flame-retardant fiber characterized in that the amount is 0.01 to 5 mass%, the content of the thermoplastic polyester resin is 83 to 99.89 mass%.