High Quality 0.7d/0.9d/1.2d/1.5d/3d/4d/7d/8d/12d/15d Polyester Staple Fiber for Sofa
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. | |||||||||

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