Compositions
Basic chromium sulfate and basic aluminum sulfate complex
Properties
Both the performance characteristics of chromium and aluminium tanning agent, can be used alone as tanning；Plaincolor quality for white leather and light-colored leather retanning ;
With good margins filling, leather grain firm, smooth and delicate，can be endowed with leather good fullness，reducing the difference of site, and prevent the loose surface, increase the leather of the anti tensile strength and lower elongation.
It can be combined with collagen fiber multi-point, giving leather good washing performance.
Package and Storage
General kraft package (20kg).
Store in a cool, dry place，dampproof
Shelf-life:24 months.
Application:
BTANIG-CA chrome and aluminium tanning agent dosage is 2-4% (after shaving tare) can be directly added to the drum in use.
Application examples：
Class soft leather tanning, less the amount of post-shaved weight:
Retanning：
100% Water 35℃
1.5-2% BROTAN-FL Fatty aldehyde 30min
3.0% HLS-C Chromium powder
2.0-4.0% BTANIG-CA Chrome and aluminium tanning agent 60-90min
Basifying and Neutralization other follow-up according to conventional processes.
