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Technical requirements for acrylic natural yarn



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 …

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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