Different test results of flame retardant fabrics using different testing methods

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Flame retardant fabric Flame retardant fabric Flame retardant effect Flame retardant performance

Measuring the flame retardant properties of flame retardant fabrics is an extremely complex process, because the factors that affect the burning of the fabric The factors are many and interrelated. Even if the same textile behaves differently in a fire, the measured flame retardant properties of flame retardant fabrics will vary. Typically, these factors include: the form of the ignition source, the time of application of the ignition source, the location of the fabric and the ignition source, etc. Different testing methods will have different test results. At present, horizontal combustion method, 45℃ combustion method and vertical combustion method are mostly used. When measuring the flame retardant properties of fabrics, it is important to specify the test method and test conditions used, among which the horizontal burning method is a less stringent test method.

In the same finishing process, when tested by the 45°C combustion method, if the flame cannot burn through the middle of the flame-retardant fabric in time, the fire intensity on the cloth surface will increase. If the fabric spreads to all sides, the flame retardant effect will be poor; when tested with the vertical burning method, if the fabric can form expanded carbon residue when burning, it will help prevent the flame from spreading upward, and the flame retardant effect will be better.

When measuring the flame retardant properties of flame-retardant fabrics through the 45°C combustion method, it is recommended to use a melt-promoting droplet type flame retardant, which is beneficial to the fabric during will be burned through in a relatively short period of time; when measuring the flame retardant properties of fabrics through the vertical combustion method, it is recommended to use carbon-forming flame retardants, which will help the fabric form a network-like non-flammable carbon layer in a relatively short period of time. This prevents combustion from proceeding.

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