Hengli PET chip yarn grade is generated in pelletizing device from the high molecular polymer which is made of PTA and MEG after polycondensation and esterification, including SEMIL DULL, SUPER BRIGHT,HMLS, FULL DULL and CATIONIC DYED chips.
Fiber Grade PET chip is widely used in spinning various polyester staple fiber and filament, producing various clothing fabrics, tire cord and woven paper filter net etc.
Hengli PET Semi-dull Yarn Grade PET Chips
| TEST ITEM | UNIT | STANDARD | RESULT |
| Intrinsic Viscosity | DL/g | 0.680 ± 0.010 | 0.680 |
| Terminal Carboxyl Group | Mol/t | 29.0 ± 4.0 | 29.5 |
| The Colorimetric Value L | / | ≥ 80 | 87.2 |
| The Colorimetric Value B | / | 4.5 ± 2.0 | 4.3 |
| TiO₂ Content | % | 0.29 ± 0.03 | 0.29 |
| Melting Point | °C | 260 ± 2.0 | 260.1 |
| Diethylene Glycol | % | 1.31 ± 0.10 | 1.31 |
| Moisture | % | ≤ 0.40 | 0.01 |
| Ash Content | % | ≤ 0.05 | 0.023 |
| Fe Content | ppm | ≤ 1.5 | 0.38 |
| Abnormal | % | ≤ 0.4 | 0 |
| Powder | mg/kg | ≤ 80 | 0 |
| Grade | / | – | A |
Hengli Super Bright Fiber PET Chips
| Analysis Item | Enterprise Standard | Analysis Results |
| Intrinsic Viscosity(dL/g) | 0.678 ± 0.010 | 0.676 |
| Melting Point (℃) | 261 ± 2.0 | 260 |
| Carboxy End Groups (mol/t) | 26 ± 3.0 | 27 |
| Color Values L | ≥80 | 87.9 |
| Color Values b | 2 ± 2.0 | 0.9 |
| Diethylene Glycol Content(%) | 0.92 ± 0.10 | 0.94 |
| Water Content(%) | ≤ 0.4 | < 0.1 |
| Iron Content(mg/kg) | ≤ 1.5 | 0.4 |
| Ash Content(%) | ≤ 0.05 | 0.02 |
| Ash Content(mg/kg) | ≤ 80 | 34 |
| Abnormal Chip (%) | ≤ 0.4 | < 0.1 |
| Chip Size, (g/100pcs) | 1.9 ± 0.1 | 1.91 |
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