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 the vertical combustion method, the 45° inclined combustion method, and the limiting oxygen index method.

When we all test flame-retardant non-woven fabrics, do you know what its test methods are?

Flame retardant performance test method of flame retardant non-woven fabric:

1. The vertical burning method and the inclined burning method can only use fabrics to test the flame retardant properties, 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 ease with which the fiber or fabric is ignited, but it cannot measure the risk of fire. Studies have shown that flame-retardant materials with a high oxygen index sometimes 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 the 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 carried out on fabrics, that is, the fibers are spun into yarns, and then the yarns are woven into fabrics of a certain specification, and then the flame retardancy is tested by the corresponding flame retardant test methods . When we are testing 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 to us.