Production method for preparing polyvinyl chloride fibers for hair by melting method

[0027] 100 parts by weight of PVC resin, 35 parts of DOP, 15 parts of DBP, 3 parts of organotin heat stabilizer, 3 parts of glyceryl monostearate and 1.5 parts of tetrakis[β-(3,5-di-tert-butyl- 4-Hydroxyphenyl) propionic acid] pentaerythritol ester was plasticized and mixed for 30 minutes, and the mixed material was plasticized, melted and spun through a screw extruder. °C, the temperature in the third zone is 188°C, the temperature in the fourth zone is 182°C, the screw speed is 20r / min, and the spinning speed is 30m / min.

[0028] The extruded PVC fiber is post-stretched, the stretching ratio is 4 times, and then the obtained fiber is treated with ether, the weight ratio of ether and PVC fiber is 9:1, the processing time is 45min, and finally the finished product is obtained after 4 times stretching PVC fibers.

[0029] After testing, the amount of plasticizer extracted with ether is 28.5%; the amount of residual plasticizer in the fiber is 4.8%, and the shrinkage rate is 4

[0031] 100 parts by weight of PVC resin, 40 parts of DOP, 20 parts of DBP, 3 parts of organotin heat stabilizer, 3 parts of glyceryl monostearate and 1.5 parts of tetrakis[β-(3,5-di-tert-butyl- 4-Hydroxyphenyl)propionic acid]pentaerythritol ester is plasticized and mixed, and the mixed material is plasticized, melted and spun through a screw extruder. The temperature of the first zone of the screw extruder is 150°C, and the temperature of the second zone is 175°C. , the temperature in the third zone is 185°C, the temperature in the fourth zone is 180°C, the screw speed is 25r / min, and the spinning speed is 35m / min.

[0032] The extruded PVC fiber was post-stretched, the stretching ratio was 5 times, and then the obtained fiber was treated with ether, the weight ratio of ether and PVC fiber was 10:1, the treatment time was 45 min, and finally stretched 5 times to obtain Finished PVC fiber.

[0033] After testing, the amount of plasticizer extracted with ether was 32.6%; the a

[0035] 100 parts by weight of PVC resin, 45 parts of DOP, 25 parts of DBP, 3 parts of organotin heat stabilizer, 3 parts of glyceryl monostearate and 1.5 parts of tetrakis[β-(3,5-di-tert-butyl- 4-Hydroxyphenyl)propionic acid]pentaerythritol ester is plasticized and mixed, and the mixed material is plasticized, melted and spun through a screw extruder. The temperature of the first zone of the screw extruder is 150°C, and the temperature of the second zone is 170°C. , the temperature in the third zone is 180°C, the temperature in the fourth zone is 175°C, the screw speed is 20r / min, and the spinning speed is 35m / min.

[0036] The extruded PVC fiber is post-stretched, the stretching ratio is 4 times, and then the obtained fiber is treated with ether, the weight ratio of ether and PVC fiber is 10:1, the treatment time is 1h, and finally the finished product is obtained after 4 times stretching PVC fibers.

[0037] After testing, the amount of plasticizer extracted with ether was