F/R polyester yarn adopts our F/R polyester staple fiber (high intensity and low drawing) as the material and involves spinning and double-twisting. Products available include 6S~ 45S single and double yarn. Features are stable quality and even textile strands (Uster standard) and high intensity.
Quality standard parameters shown in following table:

Name A+ Level A Level   Note Evenness of strands CV (%)       ≤  13~16 13~17   Breaking strength of single yarn  ≥  29~26 28~25 Breaking strength of a single yarn CV %    ≤ 10.0 12.0 Twist evenness CV (%)   ≤  6.0 8.0   Weight evenness CV (%)     ≤ 2.0 2.5

Note: 1. F/R polyester thread is tested according to FZ63001-92. 2.>P content of the F/R polyester yarn can be adjusted by customer's requirements