Extraction and Optimization of Tanning Material from Osyris lanceolata Barks: Cleaner Leather Tanning Processing

Table 1

Before Osyris lanceolata tanning, pelt sheepskin was selected which was free from defects, and then the process was carried out by using the recipe mentioned in Table 1.

Process	%	Product	Temperature (°C)	Time
De-pickling	0.8 kg	Sheep pickled pelt	30
	80	Water
	8%	Sodium chloride		Run 10 minute
Beume (B/O) was checked, it was between 6 and 8
	2%	RECURCAD PHE (aldehyde type)	30	Run for 1 hr
	1%	Sodium bicarbonate		Run for 20 minute
	0.5%	Sodium bicarbonate		Run for 20 minute
	2%	RecurCAD NT		Run for 30 minute
Check pH = 3–4.5, drain
Vegetable tanning	100%	Water
	10%	Osyris lanceolata powder solution	45	Run for 1 hr
	5%	Bastamol K
	20%	Osyris lanceolata powder solution		Run for 1 hr
	3%	Basyntan D, (re-tanning agents”)
	100%	Hot water	55	Run 30 minute
	3%	Brown dye
	3%	Coriamin SA/N (Cationic fat-liquor)		Run for 2 hr
Check pH = 5.7
	3%	Catalix® LX liq (lightfast synthetic fat-liquor)
	3%	Polymer RSC
Fixation	200%	Water		RUN for 1 hr
	0.1%	Oxalic acid
Drain	150%	Water	50	15 minute
Rinsing	300%	Water	30	20 minute