F/R polyester staple fiber is made of phosphorus F/R polyester chips through imported production lines and the key specification is 1.4d×38mm F/R polyester staple fiber (high intensity and low drawing). Features are stable quality and easy for weaving.
Quality standard parameters shown in following table:

Name A+ Level A Level Breaking strength  cN/dtex ≥  5.25 5.00 Breaking extension  % 28±4.0 28±5.0 Linear density variation    %   3.0 4.0 Length variation    %   3.0 6.0 Tenacity at 10% fixed length   ≥  2.65 2.2 Long fiber content    %  ≤  0.5 1.0 Over-length fiber  mg/100g    2.0 6.0 Defects   mg/100g ≤  2.0 8.0 Curled Fiber   /25mm 12~15 12~15 Curling Degree   % 12~15 12~15 Specific resistance   .cm ≤  Oil content   % ≤  0.2 0.3

Note: 1. F/R polyester staple fibers are tested according to GB/T14464-93. 2. P content of the F/R polyester staple fibers can be adjusted by customer's requirements.