Condensation of aromatic compound and formaldehyde.
Gives leather excellent softness, fine and smooth grain.
Lower astringency and excellent uniform filling property.
Assist chrome and chrome syntan to disperse uniformly in leather and improve the distribution and absorption of chrome.
It brings leather excellent dyeing property and especially fit for dark-color leather.
It can obviously assist tannin, vegetable tannin, resin, dyestuff and chrome to penetrate and uptake.
Excellent heat-resistance and light-fastness and especially suitable for producing white leather and light-color leather.
Great stability to acid, alkali, salts and electrolytes.
Package and Storage
Paper bag with 25kgs;
Storing condition: cool and dry;
It is suitable for all kinds of leathers, especially for napa leather, garment leather, furniture leather and suede leather.
Recommended amount is 2-4%.
It always be used together with chrome powder in re-tanning process and could obviously improve the distribution and penetration of chrome.