TFL’s new products promise further sulfide reduction

19/02/2019
Leather chemicals manufacturer TFL has brought to market two reductive unhairing agents that it says are able to replace sulfide. The products are Erhavit LSC, a liming agent for improved cleaning-out of hair follicles, and Erhavit LSR, a highly concentrated reductive unhairing agent.

“Although in practice most tanners still run hair-burn processes with huge sulfide offers,” TFL said at the time of the launch, “hair-save systems are rapidly becoming the new industry standard. The main challenge for the tanneries is to remove the hair completely, with a sulfide offer of 1% or less, including a proper removal of hair-roots and fine-hair.”

It said earlier products such as Pellvit LSG and Erhavit LSU had already provided the leather industry with “a cost-effective, ecological and sustainable system to facilitate hair-save unhairing for quality leathers”, but that the arrival of these two new products would allow the industry to reduce its use of sulfide even further.