Processes for producing stabilized fiber dyed in solution and for spinning nylon fibers dyed in solution, and, nylon fiber dyed in solution stabilized in light

摘要

'' PROCESSES TO PRODUCE STABILIZED FIBER DYED IN SOLUTION AND TO SPIN Nylon FIBERS DYED IN SOLUTION, AND Nylon FIBER DYED IN STABILIZED LIGHT SOLUTION ''. The nylon fiber dyed in a stabilized solution is produced by melting a polyamide, which consists of polymerised amide monomers in the presence of at least one mono or dicarboxylic acid chain regulator and at least one hindered piperidine compound. if the polyamide is fused and the dyed polyamide is pulled into the fibers that have about 40%, or better, retained toughness after exposure of 2125 kJ to xenon arc radiation, according to the AATCC Test Method 16-1993 , '' Colorfastness to Light '', Option E. Copper stabilizers are unnecessary.