Preparation method of anti-eclosion PTFE (Polytetrafluoroethylene) fiber and fiber

The invention discloses a preparation method of anti-eclosion PTFE fiber and fiber, the preparation method comprises the following steps: A, a PTFE resin material, a first fusible fluororesin material and a fusible fluororesin emulsion comprising a second fusible fluororesin material are prepared, and the particle size of particles in the emulsion is 50-500nm; b, a PTFE resin material and a first fusible fluororesin material are mixed to obtain a resin mixture, curing, preforming, pushing and calendaring are carried out to obtain a base band material, and degreasing is carried out to obtain a degreased base band; c, after the degreased base band is longitudinally stretched, soluble fluororesin emulsion is sprayed on the surface to form a coating, fibers are obtained through shaping and film cutting, and then stretching is conducted. According to the scheme, an optimized process improvement technology is provided for solving the problem that PTFE fibers in a traditional process are prone to burr and feathering