F/R polyester filament fiber is made of phosphorus F/R polyester chips through melt spinning. Products include F/R polyester DTY and from 75d~300d /48f~192f. Products are featured for their stable quality and low denier difference, high intensity and even dyeing.

Quality standard parameters shown in following table:

Name A+ Level A Level

Denier variation % ± 2.50 3.00

Linear density variation % ≤ 0.90 1.50

Breaking extension ( %) ±3.0

±5.0

Breaking extension CV (%) ≤ 9.00 13.0

Breaking strength cN/dtex ≥ 3.30 3.00

Breaking strength CV (%) ≤ 6.00 9.00

Curl shrinkage content % ±3.0

±4.0

Curl shrinkage CV (%) ≤ 7.0 15.0

Curl stability degree % 65.0 45.0

Shrinkage in boiled water (%) ≤ ±0.5

±0.8

dye uniformity (grey card) grade ≥ 4.0 4.0

Oil content % ±0.8

±1.0

entangling-degree (points /m) ±10

±15

entangling-degree CV (%) ≤ 8.0

Note:

1. F/R polyester DTY is tested according to GB/T14460-2001.

2.P content of the F/R polyester filament fiber can be adjusted by customer's requirements.