Fire-retardant non-woven fabric flame-retardant performance test method

When designing flame-retardant textiles with various fibers and blending ratios, it is necessary to make fabrics before testing, which is time-consuming and labor-intensive, and costs are increased. At present, the commonly used flame retardant test methods include vertical combustion method, 45° inclined combustion method, and limiting oxygen index method. When we all test flame-retardant non-woven fabrics, do you know what its test methods are?

Test method for flame retardant performance of flame retardant non-woven fabric:

1. The vertical burning method and the inclined burning method can only use fabrics for flame retardant performance testing, which requires a lot of time to weave the fabric (sample), the process is long, time-consuming and laborious, and the cost is increased.

2. The limiting oxygen index method can be used to characterize the difficulty of the fiber or fabric being ignited, but it cannot measure the risk of fire. Studies have shown that sometimes flame-retardant materials with a high oxygen index burn more violently in a fire than materials with a low oxygen index. In the oxygen index test, the material is ignited from above, and then the flame propagates downward. This combustion method is different from the combustion method of the material in an actual fire, and the correlation between the test results and other combustion performance test results is also relatively poor.

Most of the existing textile flame retardant performance tests are performed on fabrics, that is, fibers are spun into yarns, and then the yarns are woven into fabrics of a certain specification, and then the corresponding flame retardant performance test methods are used to test them Flame retardant.

When we all test the flame retardant properties of flame-retardant non-woven fabrics, we can all test according to the above test methods. The correct method to test flame-retardant non-woven fabrics is very important for us.