LF is a light yellow powder which dissolves readily in
water with almost neutral reaction.
product reduces the affinity of anionic dyes for mineral
tanned leathers, so that acid direct, metal complex and
wood dyes go on and reduce paler and more level shades.
When used as retanning agent with other auxiliaries,
Jktan LF has a mild astringency and does not overload
the grain. Therefore it is suitable for retannage of
light nappa leather.
account of its good light fastness Jktan LF is
particularly suitable for pale pastel dyeings and for
white leathers, provided that the tanning and
fatliquoring agents used for these are also sufficiently
Jktan LF causes no discolouration with iron salts.