This paper introduces the following process:PA66,PA610 and PA46 were melted and spun,and the spinning process of PA66,PA610 and PA46 was studied by Fourier transform infrared spectrometer(FTIR),differential scanning calorimeter(DSC)and electronic strength tester.The influence on the monofilament properties of the PA66,PA610 and PA46 was analyzed,especially the spinning temperature,cooling water temperature,stretching ratio,stretching temperature and so on.The results showed that when the temperature of the cooling water was 10.0℃,the stretching ratio was 6.5,the stretching temperature with hot water was 95.0℃,the stretching temperature with hot wind was 190℃for PA66 and PA610,and was 220.0℃for PA46,the heat setting temperature was 210.0℃for PA66 and PA610,and was 235.0℃for PA46,the monofilaments had the best properties by produced.
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