Abstract
The influences of the concentration of the Pekoflam DPN 1 (active flame retardant reagent), of the cure temperature, of the neutralization efficiency and of the samples final washing after the flame retardant treatment have been studied. By using the analysis of variances there has been proved that all studied factors have significative influences on the length of the carbonization area, on the rate of spread of the flame and on the weight increasing after the flame retardant treatment. Keywords: efficiency, flame retardant reagent, pad-dry-cure technology