F/R polyester staple fiber is made of phosphorus F/R polyester chips through imported production lines and the key specification is 1.4d?8mm 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.