Nylon 6, also known as polycaprolactam, is a synthetic fiber made by polymerizing caprolactam monomers. It has good abrasion, corrosion and heat resistance, as well as good softness and elasticity. It is widely used in textiles, sporting goods, ropes, fishing tackle, automotive parts and other fields.
| Nylon 6 industrial filament quality standard | ||||
| Item | unit | 233dtex(210D) | 470dtex(420D) | 940dtex(840D) |
| Thread density | dtex | 233±10 | 470±10 | 940±10 |
| Rupture strength | N | ≥14.5 | ≥31 | ≥72 |
| Rupture strength | GPD | ≥7.0 | ≥7.5 | ≥8.7 |
| Constant load elongation | % | 11.0±2.0 | 11.0±2.0 | 11.0±2.0 |
| Elongation at break | % | 25.0±3.0 | 25.0±3.0 | 25.0±3.0 |
| Coefficient of variation of linear density | % | ≤2.0 | ≤2.0 | ≤2.5 |
| Coefficient of variation of strength at break | % | ≤5.0 | ≤5.0 | ≤5.0 |
| Coefficient of variation of elongation at break | % | ≤6.5 | ≤6.5 | ≤6.5 |
| Dry heat shrinkage (160℃, 2min) | % | ≤7.0 | ≤7.0 | ≤7.0 |
| Spinning oil content | % | 0.7±0.4 | 0.7±0.4 | 1.0±0.4 |
| Item | unit | 1400dtex(1260D) | 1870dtex(1680D) | 2100dtex(1890D) |
| Thread density | dtex | 1400±10 | 1870±10 | 2100±10 |
| Rupture strength | N | ≥112 | ≥145 | ≥158 |
| Rupture strength | GPD | ≥9.0 | ≥8.8 | ≥8.5 |
| Constant load elongation | % | 11.0±2.0 | 11.0±2.0 | 12.0±2.0 |
| Elongation at break | % | 25.0±3.0 | 24.0±3.0 | 24.0±3.0 |
| Coefficient of variation of linear density | % | ≤2.5 | ≤2.5 | ≤2.5 |
| Coefficient of variation of strength at break | % | ≤5.0 | ≤5.0 | ≤5.0 |
| Coefficient of variation of elongation at break | % | ≤6.5 | ≤6.5 | ≤6.5 |
| Dry heat shrinkage (160℃, 2min) | % | ≤7.0 | ≤7.0 | ≤7.0 |
| Spinning oil content | % | 1.0±0.4 | 1.0±0.4 | 1.0±0.4 |
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