Azadirachta indica Mediated Bioactive Lyocell Yarn: Chemical and Colour Characterization

Table 5

Efficiency of antimicrobial treatment according to bromophenol Blue test scale.

Sample	Concentration of extract % (owf)	Mordent	Symbolic rating BPB scale	Remark
Undyed lyocell	—	—	− −	Undertreated
Lyocellyarn dyed with water extract	5	—	−	Undertreated
	10	—	− +	Slightly undertreated
	15	—	+	Good treatment
	15	CuSO4	+++	Slightly overtreated
	15	Al2(SO4)3	++	Good treatment
	15	TKP	+	Good treatment
	15	Harad	+	Good treatment
Lyocell yarn dyed with methanolic extract	5	—	−	Undertreated
	10	—	− +	Slightly undertreated
	15	—	+	Good treatment
	15	CuSO4	+++	Slightly overtreated
	15	Al2(SO4)3	++	Good treatment
	15	TKP	+	Good treatment
	15	Harad	+	Good treatment

Note: Concentration of mordant 6% owf using premordanting technique.