Table 4.

Thermal degradation parameters of the T. chebula dye and dyed R-RM nonwoven.

	TGA in N2 Atmosphere
	T5% (°C) a	TD (°C) b	Char Yield (%)
T. chebula dye	150	370	32
R-RM nonwoven	367	508	4
R-RM nonwoven dyed at 100 °C	407	524	14
R-RM nonwoven dyed at 140 °C	415	536	16

^a Initial thermal degradation temperatures at 5% weight loss; ^b Temperatures at maximum degradation rates.