Aluminum tanned leather

The leather tanned by aluminum sulfate tanning agent is characterized by white (so the wet leather is called "white wet leather"), softness, compact and fine grain, but it is retanning after washing. The white wet skin becomes flat and hard after drying, so the aluminum tanning agent is rarely used alone. Wet white leather can be preserved for a long time and can be further processed into different types of finished leather. It is a substitute for wet blue leather.