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An acidic bating agent with anti-wrinkling effect. Rockenzyme ANWA is a bacterial protease produced by submerged fermentation of a Bacillus Sp. strain especially suitable for wet blue re-bating.

Rockenzyme ANWA is an enzyme-based bating agent with an optimum efficiency at a pH range of 3-5.5. it can be used up to temperatures of 55˚C. Its dosage should be around 0.3 – 0.5% of hide and skin weight. In all cases, it is suggested that Rockenzyme ANWA should be evaluated in small scale before going full stream in order to detect its best dosage in the process.

AppearanceCream powder
NatureBacterial Protease
Solid Content, %Min 97
pH (1:10 Solution)7-8
Density (gr/cm3)0.55 – 0.65
Packing25 Kg’s PE Bags
Shelf life24 months

Wet blue can be treated with Rockenzyme ANWA to level out the differences of the raw material and to improve the evenness and shade intensification of the dyeing. Also, when our wet blue needs extra bating, it is getable by this agent.
An acidic bate with Rockenzyme ANWA is particularly recommended for wet blue showing a very compact and irregular fiber structure such as calf or goat skins.
It improves the evenness of the leather due to a better opening up of the fibers. Using of Rockenzyme ANWA often expands the cuttable area (yield area) to the normally loose belly area.
General recommendations for the use of Rockenzyme ANWA:
Pickled sheepskins: Percentages are based on pickled weight:

100% Water 30˚C
5% Salt 10′ Be=5
2% Sodium Formate
0.2-0.3% Soda Ash 5′
Add pelts 30′
Drain float
50-100% Water 30˚C
1-2% Sodium Formate
0.4-0.5% Rockenzyme ANWA
2% Rockol DGS-100 (nonionic solvent degreasing agent) or Rockol 642 (nonionic degreasing agent)
90-120′ pH=3.5-4
Further processing as usual.

Wet blue goat skins:
Percentages are based on shaved weight: Wash:
200% Water 40˚C
0.3% Rockol 642
Drain float
150% Water 40˚C
0.5% Rockenzyme ANWA
Overnight on automatic
Drain float
Further processing as usual
pH = 3.5-4

Wet blue calf skins or hides:
Percentages are based on shaved weight:
After rechroming as usual
150% Water 35˚C
2% Sodium Formate
1-1.5% Neutralization Syntan 60′
0.5-1% Sodium Bicarbonate 3×15′
pH = 5.5
0.5% Rockenzyme ANWA 90′ Drain and washing Further processing as usual

  •  Anti-wrinkling properties for both pickled hides and skins and wet blues.
  • Remove the fold marks in pickled skins and wet blues.
  • Noticeably increase the tear strength.
  • Improve the smoothness and softness of grain.
  • Increase the shade intensification of the dying.
  • Increase the yield area (between 3-5%).

Containers should be well sealed to prevent water evaporation and skin forming. The product must be stored between 5-25°C. Freezing and direct sun light must be avoided.
Refer to the Material Safety Data Sheet (MSDS) for this product prior to use.


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