Polyamide yarn light&heat stabilized type 502
Index |
BISFA standard symbols |
Meas. unit |
Index value |
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1. Nominal linear density |
LD |
dtex |
935 |
1440 |
1870 |
700 |
2. Number of filaments in complex yarn |
140 |
210 |
280 |
140 |
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3. Deviation of actual linear density from the nominal one |
% |
± 3,0 |
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4. Tenacity, min |
mN/dtex |
85 |
82 |
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5. Coefficient of variation of tensile strength between packages, max |
CVB |
% |
3,0 |
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6. Yarn elongation at break, max |
EAB |
% |
25 |
24 |
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7. Number of twists per 1 m of yarn |
tpm |
0 |
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8. Hot air shrinkage (in dry state), max |
HAS |
% |
8 |
6±1 |
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9. Heat resistance, min |
% |
90 |
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10. Number of entangling points per 1 m of yarn, min |
pcs |
4 |
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11. Spin-finish content (petroleum-ether), max |
% |
1,2 |
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12. Weight of a bobbin |
g |
(5000-11500) ± 500 |
9200±500 |
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13. Type of a bobbin |
cylindrical bobbin |
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14. Yarn shade of spin-finish oil, stabilizers and modifiers between the bobbins |
not admitted |
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15. Yarn shade of spin-finish oil, stabilizers and modifiers inside the bobbins |
not admitted |
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16. Length of transfer tail, min |
м |
1,0 |
Tube length, mm 290,5 Inner diameter, mm 75
Each bobbin with yarn is wrapped up with paper or polymeric foil. Bobbins are put onto a pallet with forming a block-package using interlayers while palletizing. A cover is put on the top of block-package. A block-package is strapped and stretch-foiled.
Quality control is performed according to the regulations of JSC «Grodno Azot» in force.
Min. 500 meters of upper yarn layer should be unwound from each bobbin before starting tests.