"Silk and yarn composite sewing thread" is made by spinning PTFE monofilament and PPS, MPPS, aramid, PI and other fibers through coating, plying or double plying and other processes.On the premise of good sewing applicability, it has the following special functions:
1) Complementary strength: PTFE has great thermal creep properties. Tests have proven that at a certain temperature, PTFE sewing thread has strength attenuation or even failure.In this product, the composite yarn material has different heating properties from PTFE. The yarn can better compensate for the change in strength of the PTFE monofilament due to thermal creep, thereby avoiding damage to the filter bag and falling bags. risk.
2) Increased friction coefficient: The surface of the composite seam has a certain roughness due to the yarn, and has a higher friction coefficient than the pure PTFE thread. It can form a good fit with the filter material and has a good adhesion effect.
3) Increased surface wear resistance: The yarn-coated composite structure protects the outer layer of the sewing thread strands and increases the wear resistance of the sewing thread.4) Improve the blocking effect of the filter bag pinholes: The hairiness formed on the surface of the composite thread will firmly adhere to the filter bag after the filter bag is sewn. The dust intercepted by the hairiness will easily form dust cakes in the pinholes and block the pinholes, thereby blocking the pinholes. Improve the filtration efficiency of filter bags.At the same time, it can also reduce the increased labor cost of applying film or glue to seal the pinholes of the filter bag.
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