Polyester Staple Fiber ( PSF )

            Specific properties

1.2D

 *8/*4/*1mm

1.4D

 *8/*4/*1mm

Titre deviation

≤ ±3%

≤ ±3%

            Tena city at break

6.6 ± 0.2g/den

6.6 ± 0.2g/den

Variation of breaking load

≤ 4.0 CVb %

≤ 4.0 CVb %

Tenacity of *0% elongation

≥ 4.5 g/den

≥ 4.5 g/den

Elongation at break

≥ *7.5%

≥ *8 %

Shrinkage in hot air **0oC

4 ± 2%

4 ± 2%

Number of crimps

*5 ± 3

*5 ± 3

Crimp stability

≥ *5%

≥ *5%

Deep dying defects

≤ 0.**5%

≤ 0.**5%

Overlength fibers

≤ 0.*2%

≤ 0.*2%

Multiple length fibers

≤ 0.**5%

≤ 0.**5%

Cut length variation

≤ ± 4%

≤ ± 4%