Flammability of raw insulation materials made of hemp

Due to the fact that natural materials are more sensitive to flammability, it is necessary to determine flammability properties of nonwovens from natural fibers. This paper reports the fire reaction test results comparison of non-woven hemp fibers insulation materials made by three technologies. Hydro-entangling, thermal-bonding and needle-punching technologies were used for samples production from carded web. This review particularly compares the effects of flammability to find out influences of fibers properties and applied non-woven technologies.