Leather is identified as “Aniline” with a transparent finishes.
Since it is a light pastel color with stain, it is unlikely you can cover with a “transparent” dyestuff, but will need Micro-54 to block off remaining darkening effect after the degreasing wet process: Degreaser-2.2 > Acidifier-2.0 Hydrator-3.3 > Fatliquor-5.0 system.
Note:
1- It is very important that the transition step is kept at 25% moisture level before Fatliquor-5.0 (otherwise the existing cracks will accelerate and made more obvious or worse). It will also need the optimum 15% average fatliquor fat and oil content when dry to retain the suppleness of the leather). The leather structure presently is supported with contamination body oil and grease. Once they are pullout, the leather will be extremely dry so be careful, make sure it is saturate with moisture content through the steps).
2- Besides leather suppleness contributed by the Fatliquor-5.0, the tanning agents is also displaced due to the sweat contamination fermenting and turning alkaline. To move the tanning agent back would need this process: Acidifier-2.0 > Hydrator-3.3 inserted into the continuous step mentioned above. Recommended dwelling up to 72 hours for the entire section will ensure that the fugitive tanning agents moving back - need to treat any tackiness of sliminess until it becomes squeaky prior to Fatliquor-5.0.
The above process deals with both the leather structure integrity by moving back the fugitive tanning agents as well as replenishing the diminishing fatliquor fat and oil content to its original 15% average level for leather suppleness.
Roger Koh
Leather Care System Formulator
Consultant / Practitioner / Instructor
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email:
[email protected]