Vegetable Tanning

Four types of vegetable extracts

Technical Specifications

The Quebracho Colorado extracts and its derivates are worldwide known since the 1900's as natural products that allow tanners to produce a wide variety of tanned leather with a natural feel and a beautiful look.

UNITAN, with its two factories ISO 9001-2015 certified, has the world's bestselling vegetable extract product line. Our vegetable extracts are environmentally-friendly and give our customers the best choice for their leather production in a natural way.

Spray Dried Solubles

Spray Dried Solubles	Tannins Filter Method % Min*	Insoluble % Max	Moisture % Max	Lovibond Colour Red/Yellow	Ph	Ash % Max
ATO	72 ± 2	-	9.00	2,1 - 2,5 / 4,0 - 4,4	4,7 - 5,3	7.5
ATG	72 ± 2	-	9.00	1,9 - 2,2 / 4,5 - 5,5	4,4 - 5,7	7.5
LIGHTAN ATO	70 ± 2	3.00	9.00	1,1 - 1,9 / 2,2 - 3,5	4,0 - 4,6	6.0
TEQUEBRAC P	69 ± 2	-	9.00	1,9 - 2,4 / 4,6 - 5,6	4,5 - 5,1	9.5
TEQUEBRAC L	69 ± 2	-	9.00	1,8 - 2,6 / 2,9 - 3,9	4,5 - 5,1	11.5
UNIQUE JR	48 ± 2	-	9.00	1,4 - 2,5 / 2,5 - 4,6	3,9 - 4,8	25.0
UNIQUE CHD	70 ± 2	3.00	9.00	1,8 - 2,9 / 4,0 - 6,0	4,0 - 4,7	7.5

Spray Dried Semi-Solubles

Spray Dried Semi-Solubles	Tannins Filter Method % *	Insoluble % Max	Moisture	Lovibond Colour Red/Yellow	Ph	Ash % Max
ATS	68 ± 2	4.50	9.00	2,2-2,9 / 3,9-4,8	4,2-5,0	4.50
ATD	68 ± 2	4.50	9.00	1,1-1,7 / 2,2-2,9	4,1-4,7	4.50
SUPERIOR ATO	70 ± 2	10.00	9.00	3,7-4,5 / 8,0-9,9	4,1-4,7	2.0
UNIQUE CHA	66 Mín.	4.00	9.00	2,0-3,2 / 5,8-10,2	3,4-4,0	7.2

Solid Solubles

Solid Semi-Solubles	Tannins Filter Method % *	Insoluble % Max	Moisture	Lovibond Colour Red/Yellow	Ph	Ash % Max
CROWN Block	64 ± 2	-	20.50	2,7-3,6 / 6,0-8,0	4,6-5,2	6.00

Solid Semi-Solubles

Solid Semi-Solubles	Tannins Filter Method % *	Insoluble % Max	Moisture	Lovibond Colour Red/Yellow	Ph	Ash % Max
SUPERIOR Block	63± 2	11.50	20.50	3,2-5,0 / 7,9-12	4,2-5,1	2.0

Please click here for download the technical specifications described above.