| Index name |
Cord fabric 23 КНТC/232КНТС Standards for the 1st grade |
|
Cord fabric structure warp – polyamide yarn weft – cotton yarn |
187tex x1 x2 25 tex |
| Cord size, mm | 0,7±0,03 |
| Breaking force, N, not less than | 225 |
|
Coefficient of variation for breaking force, %, not more than |
3,8 |
|
Elongation, % at 20N force at 39N force at break |
4,5±1,5 8,5±1,5 27±2,0 |
|
Coefficient of variation for elongation at break , %, not more than |
7,0 |
|
Quantity of twists per 1m of fabric First twist Second twist |
336±20 328±20 |
| Thermostability, %, not less than | 80 |
| Linear shrinkage, %, not more than | 11 |
| Fabric width, cm | 148±2 |
|
Quantity of yarns per 10 cm In warp In weft |
94±1/75±1 8±1/10±1 |
| Lubricant mass fraction, %, not more than | 1,2 |
| Direction of twists | ZZS |
|
Mass fraction of LMC in warp yarns, %, not more than |
3,3 |
| Surface density at 5% moisture, gr/m2 | 406±20/325±15 |
| Fabric length in roll, running meter | 720 |