Is the leather white or grey?
The stains don’t seem to show out?
Do you have better pictures?
Anyway any stain that is derived from plants will probably be removed by d’Tannin-3.5.
See instruction 2]; the procedural steps recommended would be - Prep-7.7 > d’Tannin-3.5 > Rinse-3.0.
Roger Koh
[email protected]
Leather Doctor® d’Tannin-3.5:
It's for Pigmented, Aniline, Nubuck, Suede, Hair-on and Woolskin leather types.
This is a pH 3.5 aqueous leather-safe tannin stain remover.
It’s for removing cellulose stains such as coffee, tea, wine and some dyes.
Stains that derive from plants will probably be removed with this product.
And d’Tarnish-1.3 can be used to accelerate the stain removing process.
Instruction:
1] Test for discoloration on a hidden area except pigmented leathers- check when dry as it may strip some dyes.
2] A thorough cleaning is necessary for compound stains prior to application.
3] Apply by dropper, cotton swab or spray then extract with absorbent towel until towel shows clean.
4] Allow natural drying for chemical reaction to take effect, repeat if necessary.
5] Rinse residue with Rinse-3.0 to a healthy squeak