Sustainable Leather meeting November 8 2012, MVO Nederland

1. wet-green®
New Platform Technology
for sustainable and low-pollution
leather products
Copyright 2004 by N-Zyme BioTec GmbH

2.  
 
technological and production
related perspective ecological perspective
Wet-green®
simplification of cost reduction occupational less sources of all types of
tanning process concerning safety error in the leather can be
environmentally production realized
relevant chemicals
and emissions
Copyright 2004 by N-Zyme BioTec GmbH
increasing ecological increasing
no hazardous convertible into
demand for production ecological
material – dynamic
chrome-free is gaining in awareness
REACH sustainability
leathers importance
conformity systems

3. 

 

 

  
 
 
Copyright 2004 by N-Zyme BioTec GmbH
 
 
 
 
 

4. 
wet-blue wet-white vegetable
wet-green®
Sourcing mining synthetic molecules natural molecules
(mineral) produced from fossil from vegetable vegetable origin (olive residues, natural molecules),
toxic burden on fuels origin, reduction of the environmental burden of olive
mining workers tanning agent vs.
and environment food planting regions, no food competition
Production / process process optimization process
optimization completed optimization production of tanning agent in industrial scale,
application completed completed application specific process optimization ongoing
of tan. agent
Substances Cr3+-salts (Cr+6, glutaraldehyde, vegetable tannins
toxic, allergenic) formaldehyde = toxic oleuropein derivatives (also present in olive oil)
Transport long transport Pipelines Long transport
distances distances (South short transport distances (EU/Mediterranean
(South Africa, America, south of
Africa)
countries)
Australia)
Sustainability insufficient missing sustainability Tara and Sumac
recycling concepts (pods and leaves), waste product of food industry
concepts, but not EU*-origin
disposal unsolved
Type of bond complex covalent hydrogen bonding
covalent and hydrogen bonding
Copyright 2004 by N-Zyme BioTec GmbH
Character of simple, fast, easier waste disposal, glutaraldehyde
leather heat good dry-shrinking required in pre- savings in acids, salts, syntans / veg. tans; good dye
tannage resistant, fine behavior (automotive), tanning of soft fixation, good dry-shrinking behavior; wet-green®
grain decreased dye fixation leather; low dye
fixation, high COD, combines technological advantages of mineral/synth.
BOD
tanning and ecological promise of veg. tanning
Tanning expensive possible usage of possible usage of
disposal of shavings (limited) shavings possible usage of shavings and waste water
waste chrome-containing
waste higher biodegradability
Application very wide wide limited
wide range of applications (tendency: very wide)
spectrum

5. 
 
high
wet-green®
versatility
versatility
wet-white vegetable
Copyright 2004 by N-Zyme BioTec GmbH
chrome tannage
(wet-blue) others
high cost advantage low

6. 










Copyright 2004 by N-Zyme BioTec GmbH



7. 







Copyright 2004 by N-Zyme BioTec GmbH


8. 







 
 
Copyright 2004 by N-Zyme BioTec GmbH
 
 
 


9. 

  
 
 
 

Copyright 2004 by N-Zyme BioTec GmbH

 
 

  
 

  


10. 









 
Copyright 2004 by N-Zyme BioTec GmbH


11. 
® 

® 

® 





Copyright 2004 by N-Zyme BioTec GmbH



