Search

Experiment has been conducted to study the flame spread behaviour over combined fabric of cotton/polyester and cotton/nylon. Samples are ignited from the top edge and spread to the downward direction. Experiment is conducted for several weft trade angles from 0° to 90°. For θ = 0°, a significant difference is seen between these two combined fabrics in the shape of burning front. However, the shape of the burning front is the same for both fabrics at θ = 90°. It is seen that the shrinking behaviour is different between polyester and nylon thread. The flame spread rate is measured, which is obtained from the position of the most preceding point of the burning front at each time, at different weft thread angle for both fabrics. It is found that both fabrics have similar angle dependency; the flame spread rate decreases as the angle increases. [ABSTRACT FROM AUTHOR]