Fire -retardant composite fiber of inorganic nanometer

The utility model relates to a fire -retardant composite fiber of inorganic nanometer, it includes PET fibre body (1), the cross -section of PET fibre body (1) is circular, PET fibre body (1) center is provided with cavity (2), the cross -section of cavity (2) is the pentalpha, cavity (2) outer fire -retardant granules of a plurality of inorganic nanometers (3) that evenly are provided with, PET fibre body (1) surface evenly is provided with a plurality of bars protruding (4), the cross -section of bar protruding (4) is triangle -shaped, outer be provided with flame retardant layer (5) of PET fibre body (1), flame retardant layer (5) outer set up matcoveredn (6). The utility model relates to a fire -retardant composite fiber of inorganic nanometer, its intensity is high, and the colour fastness is good, and the water -fast performance of washing is good, has nontoxic, low cigarette simultaneously, reduces the molten drop, non -staining environment, fire behaviour characteristics such as good. 本实用新型涉及种无机纳米阻燃复合