Inherent fire retardant fabric and chemically treated fabric are intended to inhibit or suppress the combustion process. They act to interfere with combustion at different stages of the process such as during heating, decomposition, ignition or spreading of flame.
As with any matter, fabric exposed to a heat source experience a rise in temperature. If the temperature of the fire source is high enough the fabric starts to burn and the heat of the flame that’s transferred to the fabric, sustain the burning process.
If the fabric is flame resistant, the fabric can physically or chemically interfere at the different stages of burning. The different mechanism’s that are used are:
- Endothermic Degradation
- Dilution of Fuel
- Thermal Shielding
- Dilution of Gas Phase
- Gas Phase Radical Quenching