Technical requirements for acrylic natural yarn
Table 51 2-65 Technical requirements for polyacrylonitrile fiber natural yarn
|
Line density (tex) |
Wait |
Single line breaking strength (cN/tex) Not less than |
Weight coefficient of variation (%) No larger than |
Single line strong Coefficient of variation (%) Not greater than |
Weight deviation (% ) Not greater than |
Uniformity |
Actual twist coefficient |
Excellent yarn defects (each/105m) No more than |
|
|
Blackboard appearance quality (Excellent: one: two: three) Not less than |
Coefficient of variation (%) Not greater than |
||||||||
|
10~11 |
Excellent One Two |
14.0 18.0 22.0 |
2.5 3.7 5.0 |
11.6 |
±2.5 |
7:3:0:0 0:7:3:0 0:0:7:3 |
18.0 20.0 22.0 |
260~320 |
30 |
|
12~13 |
Excellent One Two |
13.0 17.0 21.0 |
2.5 3.7 5.0 |
11.8 |
7:3:0:0 0:7:3:0 0:0:7:3 |
17.0 19.0 21.0 |
30 |
||
|
14~15 |
Excellent One Two p> |
12.5 16.5 20.5 |
2.5 3.7 5.0 |
12.0 |
7:3:0:0 0:7:3:0 0:0:7:3 |
16.0 18.0 20.0 |
30 |
||
|
16~19 |
Excellent One Two |
12.0 16.0 20.0 |
2.5 3.7 5.0 |
12.2 |
7:3:0:0 0:7:3:0 0: 0:7:3 |
15.0 17.0 19.0 |
250~310 |
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