Dispersed tannin with dye levelling effect
Condensation product of aromatic sulfonic acids
Mainly used for retanning chrome leathers. It causes the vegetable tannins to go onto the leather more mildly and more uniformly
Colour-consistency ：brown powder
Solid content (%) ：approx.95%
pH： in 10% aqueous solution approx.7.0
Solubility ：easy integration into the water
►PROSPTAN NN can accelerate the penetration of vegetable tannins.
►PROSPTAN NN is advisable to incorporate a synthetic replacement tanning agent.
►PROSPTAN NN causes the vegetable tannins to go onto the leather more mildly and more uniformly, so that the grain retains its full elasticity and can be more uniformly dyed.
►PROSPTAN NN can help other tanning agents and dyes for better dispersion.
PROSPTAN NN is mainly used for retanning chrome leathers with vegetable extracts to promote the neutralization process and to achieve a more uniform and milder absorption as well as a deeper penetration of the retanning agents. PROSPTAN NN mainly facilitates dyestuff complete penetration.
Storage in cool and ventilated warehouse, anti-exposure. Away from fire. Non-hazardous chemicals.