Christian D.Markmann GmbH
Leadership in Vegetable Tannins since 1983
Quebracho Extracts
UNITAN ATO...................................................................................................................
UNITAN ATO can be used in all vegetable and mixed tanning and retanning processes, by itself or combined with other vegetable extracts or synthetic products. It is a most versatile vegetable extract. Its main properties are:
  • Complete dissolution in cold water
  • High tannin content
  • Rapid penetration
  • Excellent tanning properties
  • Non dusty
  • Non astringent
  • Good weight yield in leather production
  • Full compatibility with vegetable tannins and syntans
Quebracho tree
UNITAN ATG...................................................................................................................
UNITAN ATG can be used in all tanning processes, where a yellower colour is required. Leather treated with this product present a pale golden-yellow surface colour, with fullness and soft hides, firm and levelled grain, ready for embossing and buffing. Its main properties are:
  • Complete dissolution in cold water
  • Pale red with a bright golden colour
  • High tannin content
  • Rapid penetration
  • Excellent tanning properties
  • Good weight yield in leather production
  • Full compatibility with vegetable tannins and syntans
UNITAN ATS...................................................................................................................
Leathers treated with Unitan ATS present a pale surface colour, excellent fullness and weight yield, firm and levelled grain, ready for embossing and buffing. It is recommended to use at the end of the process UNITAN ATS from 20% to 40% of the total vegetable extract offer. Its main properties:
  • Maximum filling properties
  • High tannin content
  • Quick penetration at natural ph
  • Excellent weight performance in leather production
  • Low ash content
  • Full compatibility with vegetable tans and syntans
If you need more detailed information, do not hesitate to contact us.
The suggestions and recommendations are based on our experience, but do not constitute a warranty from our part.