Nylon short fiber quality standards | |||||||||
Specification | 1.5D-3D | 6D-30D | 40D-100D | ||||||
Item | Grade A | I | II | Grade A | I | II | Grade A | I | II |
Linear density deviation±% | ±6 | ±8 | ±10 | ±8 | ±10 | ±12 | ±8 | ±10 | ±12 |
The length of the deviation±% | ±8 | ±10 | ±12 | ±8 | ±10 | ±12 | ±8 | ±10 | ±12 |
Fracture strength cn/dtex≥ | 4 | 3.6 | 3.2 | 4 | 3.6 | 3.2 | 4 | 3.6 | 3.2 |
elongation at break % | 50-80 | 45-90 | 40-100 | 50-80 | 45-90 | 40-100 | 50-80 | 45-90 | 40-100 |
Defect levels ≤mg/100g | 10 | 20 | 50 | 20 | 40 | 50 | 20 | 40 | 50 |
Times the rate of long fiber ≤mg/100g | 20 | 40 | 60 | 30 | 40 | 50 | 20 | 40 | 50 |
* Curl number pc/25mm | M±2.5 | M±3 | M±3 | M±2.5 | M±3 | M±3 | M±2.5 | M±3 | M±3 |
* Oil content % | 0.3-1.0 | 0.3-1.0 | 0.3-1.0 | 0.2-1.0 | 0.2-1.0 | 0.2-1.0 | 0.2-1.0 | 0.2-1.0 | 0.2-1.0 |
* Than the resistance ≤Ωcm | 9×108
| 9×109
| 9×1010
| 9×109
| 9×1010
| 9×1011
| 9×109
| 9×1010
| 9×1011
|
Note 1:Curl number center value M, according to the circumstance can be determined in consultation with supply and demand Note 2:In the table for the test items with "*" project, does not make the assessment of equality Note 3:Moisture regain 5% or less, > 5% were cull Note 4:Special varieties according to the request of the buyer, upon technical indicators. Note 5:According to the nylon short fiber related inspection standard, my factory production of short fibers do not contain chemicals cause harm to human body. | |||||||||
production Process