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Heat-resistant sewing thread - Арамидные нити

Heat-resistant sewing thread

High-strength heat-resistant sewing threads exhibit low stretchability and have the same strength as the most strong materials both in normal conditions and under the influence of high temperatures, aggressive substances, open fire, repeatable mechanical influence and other. 
Because of the double twisting and treatment with organosilicon compounds the threads exhibit increased resistance to the needle abrasive action and to the repeated folding during sewing process.  

Technical data

Threads designation 60 NSHT 120 NSHT 250 NSHT
Thread construction 29.4х1х2 58.8х1х2 58.8х2х2
1. Resultant value of nominal linear density, tex 60.0 120.0 250.0
2. Relative deviation of resultant actual linear density from resultant nominal linear density, % ± 7 ± 7 ± 7
3. Specific breaking load, cN/tex, no less than 230 230 175
4. Variation coefficient of breaking load, %, no more than 10.0 10.0 10.0
5. Elongation at break, %, no less than 3.0 3.0 3.0
6. Amount of twists per 1 m of thread after the final twist, tw/m 360 + 50 280 + 50 280 + 50
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