VENTAN NNS is Napthalene based neutralising syntan
for chrome tanned leathers, used in leather industry.
CHARACTERISTICS:
Appearance
: Light brown coloured powder
% moisture content
: 5.0 max.
Solubility
: Freely soluble in water.
pH of 10% emulsion
: 7.0 - 8.0
SPECIAL FEATURES:
Due to its low alkalinity, it does not affect chrome complex
in neutralising free acidity of leather.
Due to its composition, it shows good buffering action and ensures
safe neutralization giving uniform pH throughout entire cross-section
of leather.
It's use in neutralization of chrome tanned leathers results
in lowering of cationic charge of the surface. This facilitates
subsequent dyeing and fatliquoring operations.
It improves the penetration of dyestuffs and does not bleach the
colour.
APPLICATION:
The recommended dosage is 2-3%, on shaved wt., for shoe upper
leathers.
The recommended dosage is 1 - 2% on pelt wt. for basification.
STORAGE STABILITY:
More than one year if stored properly at ambient
temperature in supplied packing.
The information given herein is true and accurate
to the best of our knowledge. The information provided is indicative
guideline and it is not to be taken as a warranty of results.
