Polyester Short fiber Quality standard | ||
Sr.No. | Item | Value |
1 | single fiber fineness (D) | 1.5-3 |
2 | Breaking strength | 6 |
3 | Fiber length(mm) | 3 |
4 | Over-length fiber(%) ≤ | 2 |
5 | Melting point | 230 |
6 | Temperature resistance | At 100-110℃ oven for 2 hours without shrinkage deformation |
7 | Acid resistance | There was no dissolution in 50% sulfuric acid for 30 minutes |
8 | Dispersion | No impurities, no adhesion |
9 | Moisture (%) ≤ | 15 |