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VENTAN NNS - S is phenol based neutralizing syntan especially suitable for chrome tanned soft leathers.




Appearance : Light pink coloured powder


% moisture content : 5.0 max.


Solubility : Freely soluble in water.


pH of 10% emulsion : 7.0 - 8.0


  • Excellent combination with chrome tanned leathers.
  • Due to its excellent buffering action, it raises pH of leather moderately and reduces cationic character of the surface. This makes spread of retanning agents easier without any astringency or hardening.
  • It is moderately light fast.
  • It helps in achieving full shade in dyeing.


The recommended dosage is 1-2%, on shaved wt., for soft leathers.
The recommended dosage is 2% on shaved wt. for sheep garment leather.
The recommended dosage is 2-3 % on shaved wt. buff upholstery leather.


More than one year if stored properly at ambient temperature in supplied packing.


Retanning agents are same as synthetic tanning agents. Synthetic tanning agents are also known as retanning agents since they are used on wet blues which are obtained after the main tanning process using chrome for further tanning to modify leather properties to suit end application of leather.



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.

Registered office :
M/s. Venus Ethoxyethers Pvt. Ltd.
109-111, Bicholim Industrial Estate, Bicholim-Goa 403 529. INDIA.
Tel. (+91-832) 2362904/2362337/2362898, Fax : (+91-832) 2362257.


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