Ficus sycomorus as a Sustainable Source of Leather Dyeing Material: An Ecofriendly Approach

Table 5

Conditions optimized for mordant dyeing method.

Trial#	Mordant type and technique	Mordanting parameters		K/S λ = 492 nm	CIE values
		Temperature	Time
1	Without	60	55	4.585	45.3	12.3	15.5
2	Oxalic acid (pre)	60	55	6.626	36.9	14.3	16.2
3	Oxalic acid (post)	60	55	7.982	30.5	20.6	18.5
4	Alum (pre)	60	55	5.403	40.2	17.5	11.7
5	Alum (post)	60	55	5.927	38.6	14	9.4