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Product features: light, wear-resistant, chemically stable and high temperature resistant, excellent moisture absorption and perspiration wicking performance, suitable for a variety of fields.
PP Staple Fiber for Automotive Interior
PP Staple Fiber for Sound/Heat Insulation
PP Staple Fiber for Nonwoven Lining
PP Staple Fiber for High Tenacity Geotextile
PP Staple Fiber for Construction
PP Staple Fiber for Apparel Yarn
Application
In civilian textiles, the main products are socks, sportswear, outdoor clothing, quilts, thermal fillings, diapers, medical and sanitary products, etc. In industrial textiles, the main products are carpets, fishing nets, canvas, water hoses, ropes, lifting belts, conveyor belts, etc.
Product quality testing
- Quality inspection of polypropylene staple fibers for spinning
| Serial number | Test items | 1.67 dtex ~ 3.30 dtex | >3.3 dtex ~ 7.8 dtex | ||||
| Superior products | First grade | Qualified products | Superior products | First grade | Qualified products | ||
| 1 | Linear density deviation rate/ % | ±4.0 | ±6.0 | ±8.0 | ±4.0 | ±8.0 | ±10.0 |
| 2 | Breaking strength/ （cN/dtex） | 4.00 | 3.50 | 3.20 | 3.50 | 3.00 | 2.70 |
| 3 | Coefficient of variation of breaking strength/ % | 12.0 | 14.0 | 16.0 | 12.0 | 14.0 | 16.0 |
| 4 | Elongation at break/ % | M1±10.0 | M1±15.0 | M1±20.0 | M1±20.0 | M1±30.0 | M1±40.0 |
| 5 | Length deviation rate/ % | ±5.0 | ±8.0 | ±10.0 | ±5.0 | ±8.0 | ±10.0 |
| 6 | Defect content/ （mg/100g） | 5.0 | 10.0 | 20.0 | 5.0 | 25.0 | 50.0 |
| 7 | Long fiber content/ （mg/100g） | 5.0 | 10.0 | 20.0 | 5.0 | 25.0 | 50.0 |
| 8 | Extra long fiber rate/ % | 0.5 | 1.0 | 2.0 | 0.5 | 1.0 | 2.0 |
| 9 | Curl number/ （个/25mm） | M2±2.5 | M2±3.0 | M2±3.5 | M2±2.5 | M2±3.0 | M2±3.5 |
| 10 | Curl/ % | M3 ±2.5 | M3 ±3.0 | M3 ±3.5 | M3 ±2.5 | M3 ±3.0 | M3 ±3.5 |
| 11 | Specific resistance/ （Ω·cm） | Kd x 107 | Kd x 109 | Kd x 109 | Kd x 108 | Kd x 109 | Kd x 109 |
| 12 | Oil content/ % | M4±0.1 | M4±0.2 | M4±0.1 | M4±0.2 | ||
- Nonwoven polypropylene staple fiber product quality inspection
| Serial number | Test items | 1.67 dtex ~ 7.80 dtex | >7.80 dtex ~ 22.2 dtex | ||||
| Superior products | First grade | Qualified product | Superior product | First grade | Qualified product | ||
| 1 | Linear density deviation rate/ % | ±5.0 | ±10.0 | ±15.0 | ±5.0 | ±10.0 | ±15.0 |
| 2 | Breaking strength/ （cN/dtex） | 3.50 | 3.00 | 2.50 | 3.00 | 2.70 | 2.50 |
| 3 | Elongation at break/ % | M1±15.0 | M1±25.0 | M1±35.0 | M1±20.0 | M1±30.0 | M1±40.0 |
| 4 | Coefficient of variation of breaking strength/ % | 10.0 | 12.0 | 14.0 | 10.0 | 12.0 | 14.0 |
| 5 | Length deviation rate/ % | ±5.0 | ±8.0 | ±10.0 | ±5.0 | ±8.0 | ±10.0 |
| 6 | Defect content/ （mg/100g） | 10.0 | 50.0 | 75.0 | 50.0 | 100.0 | 150.0 |
| 7 | Long fiber content/ （mg/100g） | 20.0 | 40.0 | 60.0 | 20.0 | 50.0 | 75.0 |
| 8 | Curl number/ （个/25mm） | M2±2.5 | M2±3.0 | M2±3.5 | M2±2.5 | M2±3.0 | M2±3.5 |
| 9 | Curl/ % | M3 ±2.5 | M3 ±3.0 | M3 ±3.5 | M3 ±2.5 | M3 ±3.0 | M3 ±3.5 |
| 10 | Specific resistance/ （Ω·cm） | Kd x 107 | Kd x 109 | Kd x 109 | Kd x 108 | Kd x 109 | Kd x 109 |